An underground ore lifting device for mining

Abstract

The present invention relates to the field of mining engineering technology, and in particular to an underground ore hoisting device for mining, comprising a lifting channel, a lifting frame slidably connected to the inner wall of the lifting channel, and a clamping mechanism for supporting and locking the lifting frame is provided in the lifting channel. When a power outage occurs suddenly during the ore lifting process, the electromagnet is powered off and stops adsorbing the iron plate, and under the action of spring I, the iron plate drives the ratchet bar II thereon to move away from the lifting frame and mesh with the ratchet bar I, and the lifting frame is clamped and fixed in the lifting channel through the cooperation of the ratchet bar I and the ratchet bar II, so as to support and lock the lifting frame, avoid the lifting frame from falling and causing a safety accident when a power outage occurs suddenly during the ore lifting process, and avoid a huge impact and pulling on the drive motor and the entire lifting device, thereby protecting the drive motor, and reducing the risk of breaking the steel rope I, effectively improving stability and safety.

Description

Technical Field

[0001] The invention relates to the technical field of mining engineering, and in particular to an underground ore lifting device for mining. Background Art

[0002] Ore refers to stones containing valuable minerals taken from mines. After long-term mining by humans, only a small part of the ore is distributed on the surface of the mine, and most of the unmined minerals are distributed inside the mine and need to be mined in depth. Currently, the ore is mined deep underground in the mine and loaded into mine cars. The mine cars and ore are directly transported to the ground for processing and refining through lifting and traction devices.

[0003] After searching, the patent publication number is: CN115583557A, a kind of mining ore lifting and traction equipment, including a lifting channel, an ore loader and a lifting seat. A driving motor is arranged on the top of the lifting channel. The top of the lifting channel is also rotatably connected to two groups of winding rollers through a rotating shaft, the center of one group of winding rollers is fixedly connected to the output shaft of the driving motor, and the two groups of winding rollers are connected by a group of transmission belts.

[0004] Although the above patent can extend the movable clamp rod to clamp the traction steel rope when the traction steel rope breaks, increase the force points between the device and all the traction steel ropes, and share and balance the force at the connection between the unbroken traction steel rope and the device, the above patent cannot automatically support and lock the lifting seat when there is a sudden power outage during the ore lifting process. As a result, under the action of the gravity of the ore, a huge impact and pull will be generated on the drive motor and the entire lifting and traction equipment. This impact and pull may not only cause damage to the drive motor, but also cause the traction steel rope to break, which is insufficient in safety. Summary of the invention

[0005] The object of the present invention is to provide an underground ore lifting device for mining which can automatically support and lock the lifting seat when a sudden power failure occurs during the ore lifting process in order to solve the above-mentioned problem.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an underground ore lifting device for mining, comprising a lifting channel, a lifting seat is slidably connected to the inner wall of the lifting channel, the left and right sides of the lifting seat are both open-type, the front and rear sides of the top of the lifting channel are connected to mounting frames, two left and right spline shafts are rotatably connected between the two mounting frames, the spline shafts are key-connected to front and rear winding wheels Ⅰ, the winding wheel Ⅰ is wound with a steel rope Ⅰ, the steel rope Ⅰ is connected to the top of the lifting seat, a driving motor is installed on the outer wall of the lifting channel, the driving motor is connected to one of the spline shafts, the two spline shafts are transmission-connected, the four steel ropes Ⅰ are connected to the side close to the lifting seat with tension sensors, and the top of the lifting seat is provided with front and rear two spline shafts. An electric clamp for clamping steel rope Ⅰ, the electric clamp is electrically connected to the tension sensor, a clamping mechanism for supporting and locking the lifting seat is provided in the lifting channel, the clamping mechanism includes two groups of ratchet bars Ⅰ respectively connected to the inner walls on the front and rear sides of the lifting channel, the front and rear sides of the lifting seat are slidably connected with a group of iron plates that can move forward and backward through a sliding rod, the iron plates are located outside the lifting seat, each iron plate is connected to a ratchet bar Ⅱ on the side facing away from the lifting seat, the ratchet bar Ⅱ can engage with the ratchet bar Ⅰ when it moves away from the lifting seat, each sliding rod is covered with a spring Ⅰ, the spring Ⅰ is connected to the sliding rod and the lifting seat, a group of electromagnets are connected to the outer walls on the front and rear sides of the lifting seat, and the two groups of electromagnets correspond to the two groups of iron plates one by one.

[0007] As a further optimization scheme of the present invention, the electric clamp includes a guide rail I connected to the top of the lifting seat, and two left and right groups of clamps are slidably connected in the guide rail I. The four groups of clamps correspond one-to-one to the four steel ropes I. The number of clamps in each group is two, and the two clamps in each group are symmetrically arranged. The two clamps in each group are respectively located on the left and right sides of the corresponding steel rope I. Two left and right bidirectional screw rods I are rotatably connected to the guide rail I. The two bidirectional screw rods I on the guide rail I correspond one-to-one to the two groups of clamps on the guide rail I. The bidirectional screw rod I is threadedly connected to the corresponding clamps, and a dual-axis motor is installed on the guide rail I. The output shafts on both sides of the dual-axis motor are respectively connected to the two bidirectional screw rods I, and the dual-axis motor is electrically connected to the tension sensor.

[0008] As a further optimization scheme of the present invention, an emergency handling mechanism is provided between the spline shaft, the lifting seat and the mounting frame, the emergency handling mechanism includes a winding wheel II, a steel rope II and a pull block, the spline shaft is key-connected with two front and rear winding wheels II, the two winding wheels II are located between the two winding wheels I, and the left and right sides of the top of the lifting seat are provided with two front and rear pull blocks that can move away from each other, the four winding wheels II are wound with steel ropes II, the four steel ropes II correspond to the four pull blocks one by one, the steel ropes II are connected to the corresponding pull blocks, and the left and right guide rails II are connected between the two mounting frames, the guide rails II are slidably connected with two front and rear U-shaped push blocks that can move away from each other, the four U-shaped push blocks are respectively sleeved on the four winding wheels II, the guide rail II is rotatably connected with a bidirectional screw rod II, the bidirectional screw rod II is threadedly connected to the U-shaped push block, a servo motor is installed on the outer wall of the guide rail II, the servo motor is connected to the bidirectional screw rod II, and the left and right servo motors are electrically connected to the tension sensors on the left and right sides respectively.

[0009] As a further optimization solution of the present invention, electric protective doors for blocking the mine car are provided on both sides of the lifting seat.

[0010] As a further optimization solution of the present invention, rollers for reducing the friction between the lifting seat and the lifting channel are provided on the front and rear outer walls of the lifting seat.

[0011] As a further optimization scheme of the present invention, an anti-overflow mechanism for covering the mine car is provided on the top of the lifting seat, the anti-overflow mechanism includes a mounting plate installed on the top of the lifting seat, an electric push rod is installed on the upper part of the mounting plate, the top of the lifting seat is slidably connected to a lifting frame, the telescopic rod of the electric push rod is connected to the lifting frame, the lower part of the lifting frame is rotatably connected to two front and rear reels, the reel is located in the lifting seat, a cover cloth is wound around the front reel, and the cover cloth is also wound around the rear reel, and a volute spring is connected between the reel and the lifting frame.

[0012] As a further optimization scheme of the present invention, a spraying mechanism for spraying lubricating oil onto the steel rope I is provided on the mounting frame, and the spraying mechanism includes two left and right groups of connecting rods connected to the mounting frame, each connecting rod is connected to a spray head, and the four groups of spray heads correspond one by one to the four steel ropes I, and the spray heads on each group of connecting rods are connected through an oil pipeline.

[0013] As a further optimization scheme of the present invention, bristles are connected to the liquid outlet of the nozzle, and the bristles are in contact with the steel rope I.

[0014] The beneficial effects of the present invention have the following advantages compared with the prior art:

[0015] 1. When there is a sudden power outage during the ore lifting process, the electromagnet is de-energized and stops adsorbing the iron plate. Under the action of spring I, the iron plate drives the ratchet bar II thereon to move away from the lifting seat and engage with the ratchet bar I. The lifting seat is clamped and fixed in the lifting channel through the cooperation of ratchet bars I and II, so as to support and lock the lifting seat, avoid the lifting seat from falling and causing safety accidents when there is a sudden power outage during the ore lifting process, avoid huge impact and pulling on the drive motor and the entire lifting device, thereby protecting the drive motor and reducing the risk of steel rope I breaking, effectively improving stability and safety.

[0016] 2. When any one of the steel ropes I breaks during the ore lifting process, the four groups of clamps can clamp the four steel ropes I at the same time, increase the stress points between the lifting seat and the four steel ropes I, share and balance the stress at the connection between the unbroken steel rope I and the lifting seat, avoid the stress at the connection between the unbroken steel rope I and the lifting seat suddenly increasing and causing chain breakage, ensure the balance of the lifting seat during subsequent lifting, and more effectively improve stability and safety.

[0017] 3. Through the cooperation of the servo motor, bidirectional screw rod II, U-shaped push block and other components, the lifting seat can be lifted by replacing the broken steel rope I with the steel rope II and the pull block, which can further share and balance the force at the connection between the unbroken steel rope I and the lifting seat, so as to further avoid the chain fracture caused by the instantaneous increase of stress at the connection between the unbroken steel rope I and the lifting seat, further ensure the balance of the lifting seat during subsequent lifting, and further improve stability and safety.

[0018] 4. Lubricating oil can be sprayed on the steel rope I through the nozzle to lubricate the steel rope I, reduce the friction and wear between the steel rope I and the winding wheel I, provide anti-corrosion protection for the steel rope I, reduce the possibility of breakage, help to extend the service life of the steel rope I, and further improve stability and safety.

[0019] 5. The lubricating oil can be evenly applied to the steel rope I through the bristles, reducing the waste of lubricating oil. The impurities on the steel rope I can be cleaned through the bristles to improve the lubrication effect and prevent jamming or blockage caused by impurities, further improving stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 It is a schematic diagram of the installation of the clamping mechanism of the present invention.

[0023] Figure 4It is a three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the ratchet bar I and the ratchet bar II of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the electric clamp of the present invention.

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the emergency treatment mechanism of the present invention.

[0027] Figure 8 The figure is a schematic diagram of the installation of the electric protective door and the roller of the present invention.

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of the anti-overflow mechanism of the present invention.

[0029] Fig.10 It is a schematic diagram of the connection of the connecting plate, the winding drum and the spiral spring of the present invention.

[0030] Fig.11 It is a schematic diagram of the installation of the spraying mechanism of the present invention.

[0031] Fig.12 It is a three-dimensional structural schematic diagram of the spraying mechanism of the present invention.

[0032] Serial numbers in the figure: 1-lifting channel, 2-mounting frame, 21-connecting shaft, 22-gear, 23-belt, 3-spline shaft, 4-winding wheel Ⅰ, 5-steel rope Ⅰ, 6-lifting seat, 7-driving motor, 8-tension sensor, 9-electric clamp, 91-guide rail Ⅰ, 92-clamp block, 93-double-axis motor, 94-bidirectional screw rod Ⅰ, 101-ratchet bar Ⅰ, 102-slide bar, 103-iron plate, 104-ratchet bar Ⅱ, 105-spring Ⅰ, 106-electromagnet, 121-winding wheel Ⅱ, 122-steel rope Ⅱ, 123-pull block , 124-guide rail Ⅱ, 125-bidirectional screw Ⅱ, 126-U-shaped push block, 127-servo motor, 13-electric protective door, 131-stepping motor, 132-rotating shaft, 133-door body, 14-roller, 151-mounting plate, 152-electric push rod, 153-lifting frame, 1531-lifting rod, 1532-connecting plate, 1533-connecting plate, 154-reel, 155-cover cloth, 156-volute spring, 161-connecting rod, 162-nozzle, 163-oil pipeline, 17-brush, 18-mine car. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example: An underground ore lifting device for mining, see Figure 1-Figure 6, including a lifting channel 1, the shape of the lifting channel 1 is U-shaped, the inner wall of the lifting channel 1 is slidably connected to a lifting seat 6 through a slide groove, the left and right sides of the lifting seat 6 are both open, the front and rear sides of the top of the lifting channel 1 are connected to mounting frames 2, and the two mounting frames 2 are rotatably connected to left and right spline shafts 3, the spline shaft 3 is key-connected to the front and rear two winding wheels Ⅰ4, the winding wheel Ⅰ4 is wound with a steel rope Ⅰ5, and the steel rope Ⅰ5 is connected to the top of the lifting seat 6, a driving motor 7 is installed on the front outer wall of the lifting channel 1, the driving motor 7 is connected to the spline shaft 3 on the left, and a connecting shaft 21 is rotatably connected to the rear mounting frame 2, and a gear 22 is connected to the rear end of the left spline shaft 3 and the connecting shaft 21, and the two gears 22 are meshed, and the connecting shaft 2 1 and the right spline shaft 3 are covered with a belt 23 through a pulley. The four steel ropes Ⅰ5 are connected to a tension sensor 8 on one side close to the lifting seat 6. The top of the lifting seat 6 is provided with two front and rear electric clamps 9 for clamping the steel rope Ⅰ5. The electric clamp 9 includes a guide rail Ⅰ91 connected to the top of the lifting seat 6. The guide rail Ⅰ91 is slidably connected with two groups of left and right clamping blocks 92. The four groups of clamping blocks 92 correspond to the four steel ropes Ⅰ5 one by one. The number of each group of clamping blocks 92 is two. The two clamping blocks 92 in each group are symmetrically arranged. The two clamping blocks 92 in each group are respectively located on the left and right sides of the corresponding steel rope Ⅰ5. The clamping part of the clamping block 92 is provided with anti-skid patterns to increase the friction and anti-skid with the steel rope Ⅰ5, so as to firmly clamp the steel rope Ⅰ5. The guide rail Ⅰ91 The upper part is rotatably connected with two left and right bidirectional screw rods Ⅰ94, the two bidirectional screw rods Ⅰ94 on the guide rail Ⅰ91 correspond to the two groups of clamping blocks 92 on the guide rail Ⅰ91 one by one, the bidirectional screw rods Ⅰ94 and the corresponding clamping blocks 92 are threadedly connected, a double-axis motor 93 is installed on the guide rail Ⅰ91, the output shafts on both sides of the double-axis motor 93 are respectively connected to the two bidirectional screw rods Ⅰ94, the double-axis motor 93 is electrically connected to the tension sensor 8, and a clamping mechanism for supporting and locking the lifting seat 6 is provided in the lifting channel 1. The clamping mechanism includes two groups of ratchet bars Ⅰ101 respectively connected to the inner walls on the front and rear sides of the lifting channel 1, and the number of each group of ratchet bars Ⅰ101 is two, and the two ratchet bars Ⅰ101 in each group are symmetrically arranged on the left and right, and the front and rear sides of the lifting seat 6 are both slidably connected There are two groups of left and right slide bars 102 that can move forward and backward, each group of slide bars 102 has two slide bars, and the two slide bars 102 in each group are symmetrically arranged up and down. Each group of slide bars 102 is connected with an iron plate 103, and the iron plate 103 is located outside the lifting seat 6. Each iron plate 103 is connected with a ratchet bar II 104 on the side facing away from the lifting seat 6. The four ratchet bars II 104 correspond to the four ratchet bars I 101 one by one. The ratchet bars II 104 move in the direction away from the lifting seat 6 and can engage with the corresponding ratchet bars I 101. Each slide bar 102 is sleeved with a spring I 105, and the spring I 105 is connected to the slide bar 102 and the lifting seat 6. A group of electromagnets 106 are connected to the outer walls on both sides of the front and rear of the lifting seat 6, and two electromagnets 106 form a group.The two electromagnets 106 in each group are arranged symmetrically, and the four electromagnets 106 correspond to the four iron plates 103 one by one.

[0035] The driving motor 7 drives the spline shaft 3 on the left to rotate and drives the connecting shaft 21 to reverse through the gear 22. The reverse connection shaft 21 drives the spline shaft 3 on the right to reverse through the belt 23, so that the winding wheels Ⅰ4 on the left and right sides can rotate in opposite directions, and the four steel ropes Ⅰ5 can be wound and released synchronously, so as to lift the lifting seat 6 and lift the mine car 18 and the ore. When the device is powered on, the electromagnet 106 is energized to adsorb the iron plate 103, so that the iron plate 103 drives the ratchet bar Ⅱ104 thereon to move toward the lifting seat 6 and disengage from the ratchet bar Ⅰ101, and the slide bar 102 moves accordingly to stretch the spring Ⅰ105. When there is a sudden power outage during the ore lifting process, the electromagnet 106 is powered off and stops adsorbing the iron plate 103. Under the reset action of the spring Ⅰ105, the slide bar 102 moves and resets, so that the iron plate 103 drives the ratchet bar Ⅱ104 thereon to Move in the direction away from the lifting seat 6 to engage with the ratchet bar I101, and then the ratchet bar II104 is clamped and fixed through the ratchet bar I101, so that the lifting seat 6 is clamped and fixed in the lifting channel 1, thereby achieving support and locking of the lifting seat 6, avoiding the lifting seat 6 from falling and causing safety accidents when a sudden power outage occurs during the ore lifting process, avoiding huge impact and pulling on the drive motor 7 and the entire lifting device, thereby protecting the drive motor 7 and reducing the risk of breakage of the steel rope I5, effectively improving stability and safety. When any one of the steel ropes Ⅰ5 breaks during the ore lifting process, the tension sensor 8 on the broken steel rope Ⅰ5 detects that the tension is less than the preset value, and the tension sensor 8 on the broken steel rope Ⅰ5 sends a signal to the controller. After receiving the signal, the controller sends a command to control the two dual-axis motors 93 to rotate synchronously, so that the two-way screw rods Ⅰ94 on the two guide rails Ⅰ91 rotate synchronously, and the rotation of the two-way screw rods Ⅰ94 drives the two clamping blocks 92 in each group to approach each other and clamp the steel rope Ⅰ5; in this way, after any one of the steel ropes Ⅰ5 breaks, the four groups of clamping blocks 92 can clamp the four steel ropes Ⅰ5 respectively and simultaneously, play a clamping support effect, increase the force points between the lifting seat 6 and the four steel ropes Ⅰ5, share and balance the force at the connection between the unbroken steel rope Ⅰ5 and the lifting seat 6, avoid the stress at the connection between the unbroken steel rope Ⅰ5 and the lifting seat 6 to increase instantly, resulting in chain breakage, ensure the balance of the lifting seat 6 during subsequent lifting, and more effectively improve stability and safety.

[0036] See also Figure 7An emergency handling mechanism is provided between the spline shaft 3, the lifting seat 6 and the mounting frame 2, and the emergency handling mechanism includes a winding wheel Ⅱ121, a steel rope Ⅱ122 and a pull block 123. The spline shaft 3 is keyed with two front and rear winding wheels Ⅱ121, and the two winding wheels Ⅱ121 are located between the two winding wheels Ⅰ4. The left and right sides of the top of the lifting seat 6 are slidably connected with two front and rear pull blocks 123 that can be separated from each other through a slide groove. The four winding wheels Ⅱ121 are all wound with steel ropes Ⅱ122, and the four steel ropes Ⅱ122 correspond to the four pull blocks 123 one by one. The steel ropes Ⅱ122 are connected to the corresponding pull blocks 123 ... two mounting frames 2 are connected. The two right guide rails Ⅱ124 are located on the outside of the winding wheels Ⅰ4 and Ⅱ121. Two front and rear U-shaped push blocks 126 that can move away from each other are slidably connected in the guide rail Ⅱ124. The four U-shaped push blocks 126 are slidably mounted on the four winding wheels Ⅱ121 respectively. A two-way screw rod Ⅱ125 is rotatably connected to the guide rail Ⅱ124. The two-way screw rod Ⅱ125 is threadedly connected to the U-shaped push block 126. A servo motor 127 is installed on the rear outer wall of the guide rail Ⅱ124. The servo motor 127 is connected to the two-way screw rod Ⅱ125. The left and right servo motors 127 are electrically connected to the tension sensors 8 on the left and right sides respectively.

[0037] When one of the steel ropes Ⅰ5 on the left side breaks, the tension sensor 8 on the broken steel rope Ⅰ5 on the left side detects that the tension is less than the preset value, and the tension sensor 8 on the broken steel rope Ⅰ5 on the left side sends a signal to the controller. After receiving the signal, the controller sends a command to control the servo motor 127 on the left side to rotate, thereby driving the bidirectional screw rod Ⅱ125 on the left side to rotate so that the front and rear U-shaped push blocks 126 on the left side are separated from each other, thereby pushing the front and rear winding wheels Ⅱ121 on the left spline shaft 3 to separate from each other, so that the front and rear steel ropes Ⅱ122 on the left side are separated from each other. Pull the front and rear pull blocks 123 on the left side away from each other, so that the connection point between the pull block 123 and the lifting seat 6 can be moved to the broken steel rope Ⅰ5, so that the lifting of the lifting seat 6 by the broken steel rope Ⅰ5 can be replaced by the steel rope Ⅱ122 and the pull block 123, and then the force at the connection between the unbroken steel rope Ⅰ5 and the lifting seat 6 can be further shared and balanced, so as to further avoid the stress at the connection between the unbroken steel rope Ⅰ5 and the lifting seat 6 becoming larger instantly and causing chain breakage, further ensuring the balance of the lifting seat 6 during subsequent lifting, and further improving stability and safety. Similarly, when one of the steel ropes Ⅰ5 on the right side breaks, the front and rear pull blocks 123 on the right side can be moved away from each other, so that the steel rope Ⅱ122 and the pull block 123 on the right side can replace the broken steel rope Ⅰ5 on the right side to lift the lifting seat 6.

[0038] See also Figure 8The left and right sides of the lifting seat 6 are both provided with electric protective doors 13, the electric protective doors 13 include a stepper motor 131, a rotating shaft 132 and a door body 133, the door body 133 is rotatably connected to the side of the lifting seat 6 through the rotating shaft 132, the stepper motor 131 is installed on the side of the lifting seat 6 and is located on the upper side of the rotating shaft 132, the output shaft of the stepper motor 131 is connected to the rotating shaft 132, and the mine car 18 can be blocked in the lifting seat 6 through the cooperation of the left and right door bodies 133, so as to limit and fix the mine car 18 so that the mine car 18 is centered in the lifting seat 6, thereby preventing the mine car 18 from After any one of the steel ropes Ⅰ5 breaks, it slides toward the side where the break occurs, thereby preventing the stress on the unbroken steel rope Ⅰ5 from increasing instantly and causing a chain break reaction. After the steel rope Ⅰ5 breaks, the mine car 18 can be fixed, and the lifting seat 6 can be stably lifted. The stepper motor 131 is controlled to drive the rotating shaft 132 to drive the door body 133 to rotate and open, so as to release the fixation of the mine car 18, so as to facilitate the subsequent entry and exit of the lifting seat 6 by the mine car 18. The stepper motor 131 is controlled to drive the rotating shaft 132 to drive the door body 133 to reverse and close, so that the mine car 18 can be fixed again.

[0039] See also Figure 8 Nine rollers 14 are rotatably connected to the front and rear outer walls of the lifting seat 6 from top to bottom. The rollers 14 can reduce the friction between the lifting seat 6 and the lifting channel 1, so that the lifting seat 6 can be lifted and lowered more smoothly and stably in the lifting channel 1, which can reduce the wear on the lifting seat 6 and the lifting channel 1 and extend the service life of the lifting seat 6 and the lifting channel 1.

[0040] See also Figure 9-10 The top of the lifting seat 6 is provided with an anti-overflow mechanism for covering the mine car 18. The anti-overflow mechanism includes a mounting plate 151 mounted on the top of the lifting seat 6. The mounting plate 151 is in an inverted U shape. An electric push rod 152 is installed on the inner top of the mounting plate 151. The top of the lifting seat 6 is slidably connected with a lifting frame 153. The lifting frame 153 includes a lifting rod 1531, a connecting plate 1532 and a connecting plate 1533. The front and rear sides of the top of the lifting seat 6 are both symmetrically slidably connected with two lifting rods 1531. The lifting rods 1531 on the front and rear sides are respectively located at the mine car 1 On the front and rear sides of 8, a connecting plate 1532 is connected between the bottom ends of the left and right lifting rods 1531, and the connecting plate 1532 is located in the lifting seat 6. A connecting plate 1533 is connected between the top ends of the four lifting rods 1531. The connecting plate 1533 is located in the mounting plate 151 and is connected to the telescopic rod of the electric push rod 152. The lower parts of the two connecting plates 1532 are rotatably connected to a reel 154, a cover cloth 155 is wound around the front reel 154, and the cover cloth 155 is also wound around the rear reel 154, and a volute spring 156 is connected between the reel 154 and the connecting plate 1532.

[0041] The telescopic rod of the electric push rod 152 is controlled to extend to push the lifting frame 153 to move downward with the reel 154, so that the cover cloth 155 can move downward to cover the top of the mine car 18. When the cover cloth 155 moves down to contact the ore on the mine car 18, the cover cloth 155 stops moving downward, so that the reel 154 continues to move downward to pull out the cover cloth 155, and the reel 154 rotates to release the cover cloth 155, and the volute spring 156 is compressed accordingly, so that the ore on the mine car 18 can be covered by the cover cloth 155 to avoid the ore rolling off the mine car 18 during lifting, thereby improving the safety of ore transportation and helping to reduce the occurrence of accidents; the telescopic rod of the electric push rod 152 is controlled to retract to pull the lifting frame 153 to move upward with the reel 154, which can drive the cover cloth 155 to move upward and separate from the ore on the mine car 18. Under the resetting action of the volute spring 156, the reel 154 can reverse and rewind the cover cloth 155.

[0042] See also Fig.11 A spraying mechanism for spraying lubricating oil on the steel rope Ⅰ5 is provided on the mounting frame 2, and the spraying mechanism includes two left and right groups of connecting rods 161 connected to the mounting frame 2, each connecting rod 161 is connected to a spray head 162, and the four groups of spray heads 162 correspond to the four steel ropes Ⅰ5 one by one. The number of each group of connecting rods 161 is two, and the two connecting rods 161 in each group are symmetrically arranged. The two spray heads 162 in each group are respectively located on the left and right sides of the corresponding steel rope Ⅰ5, and the two spray heads 162 on each group of connecting rods 161 are connected through an oil pipe 163.

[0043] The oil pipe 163 is connected to an external infusion device, and the lubricating oil is transported to the nozzle 162 through the oil pipe 163 by the infusion device. The lubricating oil is sprayed on the steel rope Ⅰ5 through the nozzle 162 to lubricate the steel rope Ⅰ5. This not only reduces the friction and wear between the steel rope Ⅰ5 and the winding wheel Ⅰ4, but also provides anti-corrosion protection for the steel rope Ⅰ5, reduces the possibility of breakage, helps to extend the service life of the steel rope Ⅰ5, and further improves stability and safety.

[0044] See also Fig.12 A brush 17 is connected to the liquid outlet of the nozzle 162, and the brush 17 is in contact with the steel rope Ⅰ5. The lubricating oil can be evenly applied to the steel rope Ⅰ5 through the brush 17 to reduce the waste of the lubricating oil. The impurities on the steel rope Ⅰ5 can be cleaned by the brush 17 to keep the steel rope Ⅰ5 clean. The cleaned steel rope Ⅰ5 can better combine with the lubricating oil to improve the lubrication effect. Cleaning the impurities on the steel rope Ⅰ5 can also prevent jamming or blockage caused by impurities, further improving stability and safety.

[0045] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. An underground ore lifting device for mining, comprising a lifting channel (1), a lifting seat (6) is slidably connected to the inner wall of the lifting channel (1), the left and right sides of the lifting seat (6) are both open, the front and rear sides of the top of the lifting channel (1) are connected to mounting frames (2), two left and right spline shafts (3) are rotatably connected between the two mounting frames (2), the spline shafts (3) are key-connected to the front and rear winding wheels I (4), the winding wheels I (4) are wound with a steel rope I (5), the steel rope I (5) is connected to the top of the lifting seat (6), a driving motor (7) is installed on the outer wall of the lifting channel (1), the driving motor (7) is connected to one of the spline shafts (3), and the two spline shafts (3) are transmission-connected, characterized in that: The four steel ropes I (5) are connected to a tension sensor (8) on one side close to the lifting seat (6). The top of the lifting seat (6) is provided with two electric clamps (9) for clamping the steel ropes I (5) at the front and rear ends. The electric clamps (9) are electrically connected to the tension sensor (8). The lifting channel (1) is provided with a clamping mechanism for supporting and locking the lifting seat (6). The clamping mechanism includes two groups of ratchet bars I (101) respectively connected to the inner walls of the front and rear sides of the lifting channel (1). The front and rear sides of the lifting seat (6) are slidably connected to a group of iron plates (103) that can move forward and backward through sliding rods (102). ), the iron plate (103) is located outside the lifting seat (6), and each iron plate (103) is connected to a ratchet bar II (104) on one side facing away from the lifting seat (6), and the ratchet bar II (104) can be engaged with the ratchet bar I (101) when it moves in a direction away from the lifting seat (6), and each slide bar (102) is sleeved with a spring I (105), and the spring I (105) is connected to the slide bar (102) and the lifting seat (6), and a group of electromagnets (106) are connected to the outer walls on both sides of the front and rear sides of the lifting seat (6), and the two groups of electromagnets (106) correspond to the two groups of iron plates (103) one by one; The electric clamp (9) includes a guide rail I (91) connected to the top of the lifting seat (6), and two groups of clamping blocks (92) are slidably connected to the guide rail I (91). The four groups of clamping blocks (92) correspond to the four steel ropes I (5) one by one. The number of clamping blocks (92) in each group is two, and the two clamping blocks (92) in each group are symmetrically arranged. The two clamping blocks (92) in each group are respectively located on the left and right sides of the corresponding steel rope I (5). The guide rail I (91) is rotatably connected to the guide rail I (91). There are two left and right bidirectional screw rods I (94), the two bidirectional screw rods I (94) on the guide rail I (91) correspond to the two sets of clamping blocks (92) on the guide rail I (91) one by one, the bidirectional screw rods I (94) and the corresponding clamping blocks (92) are threadedly connected, a double-axis motor (93) is installed on the guide rail I (91), the output shafts on both sides of the double-axis motor (93) are respectively connected to the two bidirectional screw rods I (94), and the double-axis motor (93) is electrically connected to the tension sensor (8); An emergency handling mechanism is provided between the spline shaft (3), the lifting seat (6) and the mounting frame (2), and the emergency handling mechanism comprises a winding wheel II (121), a steel rope II (122) and a pull block (123). The spline shaft (3) is key-connected with two front and rear winding wheels II (121), the two winding wheels II (121) are located between the two winding wheels I (4), and two front and rear pull blocks (123) that can be separated from each other are provided on the left and right sides of the top of the lifting seat (6). The four winding wheels II (121) are all wound with steel ropes II (122), and the four steel ropes II (122) correspond to the four pull blocks (123) one by one. The steel ropes II (122) are connected to the corresponding pull blocks (123). , two left and right guide rails II (124) are connected between the two mounting frames (2), two front and rear U-shaped push blocks (126) that can move away from each other are slidably connected in the guide rail II (124), the four U-shaped push blocks (126) are respectively sleeved on the four winding wheels II (121), a bidirectional screw rod II (125) is rotatably connected to the guide rail II (124), the bidirectional screw rod II (125) is threadedly connected to the U-shaped push block (126), a servo motor (127) is installed on the outer wall of the guide rail II (124), the servo motor (127) is connected to the bidirectional screw rod II (125), and the left and right servo motors (127) are respectively electrically connected to the tension sensors (8) on the left and right sides.

2. The underground ore lifting device for mining according to claim 1, characterized in that: Electric protective doors (13) for blocking the mine car (18) are provided on both the left and right sides of the lifting seat (6).

3. The underground ore lifting device for mining according to claim 2, characterized in that: Rollers (14) for reducing the friction between the lifting seat (6) and the lifting channel (1) are provided on both the front and rear outer walls of the lifting seat (6).

4. The underground ore lifting device for mining according to claim 3, characterized in that: The top of the lifting seat (6) is provided with an anti-overflow mechanism for covering the mining car (18), the anti-overflow mechanism comprising a mounting plate (151) mounted on the top of the lifting seat (6), an electric push rod (152) mounted on the upper part of the mounting plate (151), a lifting frame (153) slidably connected to the top of the lifting seat (6), a telescopic rod of the electric push rod (152) connected to the lifting frame (153), a lower part of the lifting frame (153) rotatably connected to two front and rear reels (154), the reels (154) are located in the lifting seat (6), a cover cloth (155) is wound around the front reel (154), the cover cloth (155) is also wound around the rear reel (154), and a volute spring (156) is connected between the reel (154) and the lifting frame (153).

5. The underground ore lifting device for mining according to claim 4, characterized in that: The mounting frame (2) is provided with a spraying mechanism for spraying lubricating oil onto the steel rope I (5), the spraying mechanism comprising two left and right groups of connecting rods (161) connected to the mounting frame (2), each connecting rod (161) being connected to a spray head (162), the four groups of spray heads (162) corresponding to the four steel ropes I (5) one by one, and the spray heads (162) on each group of connecting rods (161) being connected via an oil delivery pipe (163).

6. An underground ore lifting device for mining according to claim 5, characterized in that: The liquid outlet of the nozzle (162) is connected to a brush (17), and the brush (17) is in contact with the steel rope I (5).

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