Metal extraction hoist

Abstract

The application discloses a metal mining hoist and relates to the technical field of metal mining. The metal mining hoist comprises a hanging arm, the end face and the upper part of one end of the hanging arm are respectively provided with a second supporting rod and a first supporting rod, the second supporting rod and the first supporting rod are both provided with a guide wheel for guiding a hanging rope away from the end of the hanging arm, the upper part of the hanging arm is provided with a self-lubricating assembly for lubricating the hanging rope near the first supporting rod, and a speed sensor for monitoring the rotating speed of the guide wheel is installed on the side of the end of the second supporting rod away from the hanging arm. When the hanging rope needs to be lubricated, the metal mining hoist can make the hanging rope be located in the rope hole on the sponge block under the mutual repulsion between the fixed electromagnet and the moving electromagnet, then the cotton thread can be in contact with the lubricating oil under the working of the servo motor, and the lubricating oil can wet the sponge block by using the principle of capillary phenomenon, so that the self-lubricating effect of the hanging rope is achieved.

Description

Technical Field

[0001] This invention relates to the field of metal mining technology, specifically to metal mining hoists. Background Technology

[0002] Metal mining is an important industrial activity involving the extraction of metal ores from underground or the surface. Metal mining is inseparable from hoists, which are devices used to lift metal ores, slag, and other related materials from underground or the surface to the surface or other processing equipment. They play a vital role in the metal mining process, improving production efficiency and reducing labor intensity.

[0003] The hoisting ropes on metal hoists require frequent lubrication. However, each time lubrication is needed, lubricant usually needs to be applied manually to the hoisting ropes, which increases the workload of manual labor. When the hoist malfunctions, the hoisting ropes may drop rapidly, posing a certain danger. Therefore, it is necessary to develop a metal mining hoist that is easy to lubricate and has a high safety factor. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a metal mining hoist that solves the problems of inconvenient lubrication of the hoisting ropes and low safety factor in traditional metal mining hoists.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a metal mining hoist, comprising a boom, wherein a second support rod and a first support rod are respectively provided on one end face and the upper part of one end of the boom; both the second support rod and the first support rod are provided with guide wheels for guiding the hoisting rope at the ends away from the boom; a self-lubricating component for lubricating the hoisting rope is provided on the upper part of the boom near the first support rod; a speed sensor for monitoring the rotational speed of the guide wheels is installed on the side of the second support rod at the end away from the boom, and the speed sensor is connected to an external control device; an L-shaped seat is provided at the lower part of one end of the boom, and a protective component is provided at the end of the L-shaped seat away from the boom.

[0006] The self-lubricating assembly includes an oil reservoir filled with lubricating oil. A housing is located on the upper part of the oil reservoir, through which a suspension rope slides. A fixed electromagnet is located on the top side of the housing. Limit shafts are located on the lower sides of both sides of the fixed electromagnet. A movable electromagnet is longitudinally slidably fitted between the two limit shafts. A first spring is fitted on the upper outer surface of each of the two limit shafts. The two ends of the first spring are connected to the fixed electromagnet and the movable electromagnet, respectively. The opposing magnetic poles of the fixed electromagnet and the movable electromagnet are the same. A sponge block is positioned directly above the suspension rope at the lower part of the magnet. L-shaped strips are located on both sides of the sponge block, with a hollow interior. The end of the L-shaped strip furthest from the sponge block slides longitudinally through the upper part of the oil reservoir. A cotton strip is placed inside the L-shaped strip, with one end connected to the sponge block and the other end extending out of the L-shaped strip. A groove corresponding to the position of the suspension rope is located at the lower part of the sponge block, and a rope hole communicating with the groove is provided on the sponge block. The diameter of the rope hole is equal to the outer diameter of the suspension rope.

[0007] Preferably, the repulsive force between the fixed electromagnet and the moving electromagnet is greater than the elasticity of the first spring. When the first spring is in the reset state, the sponge block does not contact the suspension rope. After the fixed electromagnet and the moving electromagnet are powered on, the suspension rope is precisely inserted into the rope hole on the sponge block.

[0008] Preferably, the oil reservoir is equipped with an oil pushing mechanism for pushing lubricating oil. The oil pushing mechanism includes a servo motor installed on the lower side of the oil reservoir. The output shaft of the servo motor is connected to a screw. A partition that matches the internal size of the oil reservoir is screwed onto the outside of the screw. The partition is longitudinally slidably disposed inside the oil reservoir, and the lubricating oil in the oil reservoir is located above the partition.

[0009] Preferably, the protective assembly includes a sealed cavity disposed at the end of the L-shaped seat away from the boom. The hoisting rope slides longitudinally through the interior of the sealed cavity. Two rotating shafts are symmetrically rotatably disposed on one side of the interior of the sealed cavity. One end of each rotating shaft is connected to a guide wheel. The two guide wheels guide the hoisting rope. Positioning holes are provided on both sides of the center of each guide wheel away from the rotating shaft. Two locking pieces corresponding to the positions of the guide wheels are symmetrically disposed on the other side of the interior of the sealed cavity.

[0010] Preferably, the clamping component includes a fixed shaft connected to the inner side of the sealing cavity. One end of the fixed shaft is connected to an adjusting electromagnet, and an iron block is laterally slidably sleeved on the outside of the fixed shaft. A second spring is sleeved on the outside of the fixed shaft at one side of the iron block. The two ends of the second spring are respectively connected to the inner side of the sealing cavity and one side of the iron block. A limiting cylinder is rotatably provided on one side of the iron block, with the same position as the central axis of the guide wheel. Two convex shafts are provided on the end face of the limiting cylinder away from the iron block. When the guide wheel rotates, the two positioning holes on the guide wheel can pass exactly through the corresponding positions of the two convex shafts. A spring-loaded spring is sleeved on the outside of the end of the limiting cylinder away from the convex shafts. The two ends of the spring-loaded spring are respectively connected to the side of the iron block and the outer wall of the limiting cylinder.

[0011] Preferably, the attraction force of the adjusting electromagnet to the iron block is greater than the elasticity of the second spring. When the adjusting electromagnet attracts the iron block and the positioning hole on the guide wheel corresponds to the position of the convex shaft, the convex shaft is just inserted into the positioning hole.

[0012] This invention provides a metal mining hoist, which has the following advantages compared with the prior art:

[0013] 1. When the hoisting rope of this metal mining hoist needs to be lubricated, the mutual repulsion between the fixed electromagnet and the moving electromagnet allows the rope to be positioned in the rope hole on the sponge block. Then, under the operation of the servo motor, the cotton strip can come into contact with the lubricating oil. Utilizing the principle of capillary action, the lubricating oil can wet the sponge block, thereby providing self-lubrication for the rope. After lubrication is completed, the rope can be moved away from the sponge block, reducing the frictional resistance during the rope's movement. At the same time, the cotton strip can be moved away from the lubricating oil to prevent the lubricating oil from continuing to wet the sponge block.

[0014] 2. This metal mining hoist can monitor the speed of the hoisting rope at all times during its movement. When the hoisting rope moves too fast, it can slow down the rope to prevent it from falling rapidly, thus providing a safety protection function. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the self-lubricating component of the present invention in its unused state;

[0017] Figure 3 This is a schematic diagram of the self-lubricating component of the present invention in its used state;

[0018] Figure 4 This is a schematic diagram of the structure of the protective component of the present invention.

[0019] In the diagram: 1. Boom; 2. First support rod; 3. Second support rod; 4. Guide wheel; 5. Self-lubricating assembly; 51. Oil tank; 52. Servo motor; 53. Screw; 54. Partition plate; 55. Housing; 56. Fixed electromagnet; 57. Limiting shaft; 58. Moving electromagnet; 59. First spring; 510. Sponge block; 511. L-shaped strip; 512. Cotton strip; 513. Rope hole; 514. Slot; 6. Speed ​​sensor; 7. L-shaped seat; 8. Protective assembly; 81. Sealing cavity; 82. Rotating shaft; 83. Guide wheel; 84. Positioning hole; 85. Clamp; 851. Fixed shaft; 852. Adjusting electromagnet; 853. Iron block; 854. Second spring; 855. Limiting cylinder; 856. Convex shaft; 857. Spring spring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-4 This invention provides two technical solutions:

[0022] Example 1

[0023] Please see Figure 1 In this embodiment of the invention, a metal mining hoist includes a boom 1. A second support rod 3 and a first support rod 2 are respectively provided on one end face and the upper part of one end of the boom 1. A guide wheel 4 for guiding the hoisting rope is provided on the end of the second support rod 3 and the first support rod 2 away from the boom 1. A self-lubricating component 5 for lubricating the hoisting rope is provided on the upper part of the boom 1 near the first support rod 2. A speed sensor 6 for monitoring the rotational speed of the guide wheel 4 is installed on the side of the second support rod 3 away from the boom 1. The speed sensor 6 is connected to an external control device. An L-shaped seat 7 is provided on the lower part of one end of the boom 1. A protective component 8 is provided on the end of the L-shaped seat 7 away from the boom 1.

[0024] Please see Figure 2-3In this embodiment of the invention, the self-lubricating component 5 includes an oil reservoir 51 containing lubricating oil. A housing 55 is located on the upper part of the oil reservoir 51. A suspension rope slides through the housing 55. A fixed electromagnet 56 is located on the top side inside the housing 55. Limiting shafts 57 are located on the lower parts of both sides of the fixed electromagnet 56. A movable electromagnet 58 is longitudinally slidably sleeved between the outer sides of the two limiting shafts 57. A first spring 59 is sleeved on the outer upper end of each of the two limiting shafts 57. The two ends of the first spring 59 are respectively connected to the fixed electromagnet 56 and the movable electromagnet 58. The magnetic poles on opposite sides of the fixed electromagnet 56 and the movable electromagnet 58 are the same. The lower part of the movable electromagnet 58... A sponge block 510 is positioned directly above the suspension rope. L-shaped strips 511 are provided on both sides of the sponge block 510. The interior of the L-shaped strips 511 is hollow, and the end of the L-shaped strips 511 away from the sponge block 510 slides longitudinally through the upper part of the oil tank 51. A cotton strip 512 is provided inside the L-shaped strips 511. One end of the cotton strip 512 is connected to the sponge block 510, and the other end of the cotton strip 512 extends out of the L-shaped strip 511. A groove 514 corresponding to the position of the suspension rope is provided at the lower part of the sponge block 510, and a rope hole 513 communicating with the groove 514 is provided on the sponge block 510. The diameter of the rope hole 513 is equal to the outer diameter of the suspension rope.

[0025] Please see Figure 2-3 In this embodiment of the invention, the repulsive force between the fixed electromagnet 56 and the movable electromagnet 58 is greater than the elasticity of the first spring 59. When the first spring 59 is in the reset state, the sponge block 510 does not contact the suspension rope. After the fixed electromagnet 56 and the movable electromagnet 58 are powered on, the suspension rope is just inserted into the rope hole 513 on the sponge block 510.

[0026] Please see Figure 2-3 In this embodiment of the invention, the oil storage tank 51 is provided with an oil pushing mechanism for pushing lubricating oil. The oil pushing mechanism includes a servo motor 52 installed on the lower side of the inside of the oil storage tank 51. The output shaft of the servo motor 52 is connected to a screw 53. A partition 54 adapted to the internal size of the oil storage tank 51 is screwed to the outside of the screw 53. The partition 54 is longitudinally slidably disposed inside the oil storage tank 51, and the lubricating oil in the oil storage tank 51 is located above the partition 54.

[0027] Example 2 differs from Example 1 in that:

[0028] Please see Figure 4In this embodiment of the invention, the protective component 8 includes a sealed cavity 81 disposed at the end of the L-shaped seat 7 away from the boom 1. The hoisting rope slides longitudinally through the interior of the sealed cavity 81. Two rotating shafts 82 are symmetrically rotatably disposed on one side of the interior of the sealed cavity 81. One end of each of the two rotating shafts 82 is connected to a guide wheel 83. The two guide wheels 83 guide the hoisting rope. Positioning holes 84 are provided on both sides of the center of the side of each guide wheel 83 away from the rotating shaft 82. Two locking pieces 85 corresponding to the positions of the guide wheels 83 are symmetrically disposed on the other side of the interior of the sealed cavity 81.

[0029] Please see Figure 4 In this embodiment of the invention, the clamp 85 includes a fixed shaft 851 connected to the inner side of the sealed cavity 81. One end of the fixed shaft 851 is connected to an adjusting electromagnet 852, and an iron block 853 is laterally slidably sleeved on the outside of the fixed shaft 851. A second spring 854 is sleeved on the outside of the fixed shaft 851 at one side of the iron block 853. The two ends of the second spring 854 are respectively connected to the inner side of the sealed cavity 81 and one side of the iron block 853. A limiting cylinder 855 is rotatably provided on one side of the iron block 853, which is at the same position as the central axis of the guide wheel 83. Two convex shafts 856 are provided on the end face of the limiting cylinder 855 away from the iron block 853. When the guide wheel 83 rotates, the two positioning holes 84 on the guide wheel 83 can pass through the corresponding positions of the two convex shafts 856. A spring spring 857 is sleeved on the outside of the end of the limiting cylinder 855 away from the convex shafts 856. The two ends of the spring spring 857 are respectively connected to the side of the iron block 853 and the outer wall of the limiting cylinder 855.

[0030] Please see Figure 4 In this embodiment of the invention, the attraction force of the electromagnet 852 on the iron block 853 is greater than the elasticity of the second spring 854. When the electromagnet 852 attracts the iron block 853 and the positioning hole 84 on the guide wheel 83 corresponds to the position of the convex shaft 856, the convex shaft 856 is just inserted into the positioning hole 84.

[0031] Working principle: When lubrication of the hoisting rope is required, the power supply to the fixed electromagnet 56 and the moving electromagnet 58 is turned on respectively. Since the opposing magnetic poles of the fixed electromagnet 56 and the moving electromagnet 58 are the same, and the repulsive force between them is greater than the elasticity of the first spring 59, the moving electromagnet 58 will move downward, causing the hoisting rope to be inserted into the rope hole 513 on the sponge block 510. Figure 3As shown, simultaneously, the servo motor 52 drives the screw 53 to rotate, and the screw 53 drives the partition 54 to move upward, pushing the lubricating oil above the partition 54 upward so that the lower end of the cotton strip 512 can contact the lubricating oil. After contact, according to the principle of capillary action, the lubricating oil will wet the cotton strip 512. The cotton strip 512 conducts the lubricating oil to the sponge block 510 to wet it. During the movement of the suspension rope, it will rub against the sponge block 510, and the sponge block 510 will apply the lubricating oil to the suspension rope, which will lubricate the suspension rope. When the suspension rope is lubricated, the power supply of the fixed electromagnet 56 and the moving electromagnet 58 is turned off. The first spring 59 will cause the moving electromagnet 58 to reset, so that the suspension rope leaves the position of the sponge block 510, reducing the frictional resistance during the movement of the suspension rope and preventing further friction on the sponge block 510. At the same time, the servo motor 52 continues to work, causing the partition 54 to move downward so that the lower end of the cotton strip 512 is no longer in contact with the lubricating oil.

[0032] During the movement of the suspension rope, it exerts a compressive force on the two guide wheels 83, causing them to rotate and guiding the rope. When the rope travels too fast, the speed sensor 6 detects the rotation speed of the guide wheel 4 on the second support rod 3 and transmits the signal to the external control device. The control device then activates the adjusting electromagnet 852, which attracts the iron block 853. Since the attraction of the adjusting electromagnet 852 to the iron block 853 is greater than the attraction of the second spring 854, the iron block 853 is attracted to the adjusting electromagnet 852. When the iron block 853 moves toward the adjusting electromagnet 852, if the convex shaft 856 on the limiting cylinder 855 does not correspond to the positioning hole 84 on the guide wheel 83, one end of the convex shaft 856 will abut against the side of the guide wheel 83. At this time, the iron block 853 is not in contact with the adjusting electromagnet 852, and the adjusting electromagnet 852 continues to attract the iron block 853. The suction force continues to be generated. Due to the rapid descent of the hoisting rope, the guide wheel 83 will continue to rotate. When the positioning hole 84 on the guide wheel 83 moves to correspond with the position of the convex shaft 856, the convex shaft 856 will be locked into the positioning hole 84, and the iron block 853 will be attracted to the adjusting electromagnet 852. Then the guide wheel 83 will continue to rotate, driving the limit cylinder 855 to rotate. When the limit cylinder 855 rotates, it will cause the spring 857 to tighten. As the spring 857 continues to tighten, the rotation speed of the guide wheel 83 gradually slows down, thus gradually reducing the speed of the hoisting rope until the hoisting rope stops descending. When the hoist malfunction is repaired, the power to the adjusting electromagnet 852 is turned off, and the second spring 854 will reset the iron block 853, causing the convex shaft 856 on the limit cylinder 855 to leave the positioning hole 84 on the guide wheel 83. After leaving, the spring 857 will reset, so that the hoist can continue to work when it malfunctions again.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A metal mining hoist, comprising a boom (1), characterized in that: The boom (1) is provided with a second support rod (3) and a first support rod (2) on one end face and the upper part of the other end, respectively. The second support rod (3) and the first support rod (2) are provided with guide wheels (4) for guiding the hoisting rope at the ends away from the boom (1). The upper part of the boom (1) near the first support rod (2) is provided with a self-lubricating component (5) for lubricating the hoisting rope. A speed sensor (6) for monitoring the rotation speed of the guide wheel (4) is installed on the side of the second support rod (3) away from the boom (1). The speed sensor (6) is connected to an external control device. An L-shaped seat (7) is provided at the lower part of one end of the boom (1). A protective component (8) is provided at the end of the L-shaped seat (7) away from the boom (1). The self-lubricating component (5) includes an oil reservoir (51) containing lubricating oil. A housing (55) is located on the upper part of the oil reservoir (51). A suspension rope slides through the housing (55). A fixed electromagnet (56) is located on the top side inside the housing (55). Limiting shafts (57) are located on the lower parts of both sides of the fixed electromagnet (56). A movable electromagnet (58) is longitudinally slidably sleeved between the two limiting shafts (57). A first spring (59) is sleeved on the upper outer part of each of the two limiting shafts (57). The two ends of the first spring (59) are connected to the fixed electromagnet (56) and the movable electromagnet (58) respectively. The fixed electromagnet (56) and the movable electromagnet (58) have the same magnetic poles on opposite sides. The lower part of the movable electromagnet (58) is located at... A sponge block (510) is provided at the top of the suspension rope. L-shaped strips (511) are provided on both sides of the sponge block (510). The interior of the L-shaped strips (511) is hollow. The end of the L-shaped strip (511) away from the sponge block (510) slides longitudinally through the upper part of the oil tank (51). A cotton strip (512) is provided inside the L-shaped strip (511). One end of the cotton strip (512) is connected to the sponge block (510), and the other end of the cotton strip (512) extends out of the L-shaped strip (511). The lower part of the sponge block (510) is provided with a groove (514) corresponding to the position of the suspension rope. The sponge block (510) is provided with a rope hole (513) communicating with the groove (514). The diameter of the rope hole (513) is equal to the outer diameter of the suspension rope.

2. The metal mining hoist according to claim 1, characterized in that: The repulsive force between the fixed electromagnet (56) and the moving electromagnet (58) is greater than the elasticity of the first spring (59). When the first spring (59) is in the reset state, the sponge block (510) does not contact the suspension rope. After the fixed electromagnet (56) and the moving electromagnet (58) are powered on, the suspension rope is just inserted into the rope hole (513) on the sponge block (510).

3. The metal mining hoist according to claim 1, characterized in that: The oil reservoir (51) is equipped with an oil pushing mechanism for pushing lubricating oil. The oil pushing mechanism includes a servo motor (52) installed on the lower side of the inside of the oil reservoir (51). The output shaft of the servo motor (52) is connected to a screw (53). A partition (54) adapted to the internal size of the oil reservoir (51) is screwed to the outside of the screw (53). The partition (54) is longitudinally slidably disposed inside the oil reservoir (51). The lubricating oil in the oil reservoir (51) is located above the partition (54).

4. The metal mining hoist according to claim 1, characterized in that: The protective assembly (8) includes a sealed cavity (81) located at the end of the L-shaped seat (7) away from the boom (1). The hoisting rope slides longitudinally through the interior of the sealed cavity (81). Two rotating shafts (82) are symmetrically arranged on one side of the interior of the sealed cavity (81). One end of each rotating shaft (82) is connected to a guide wheel (83). The two guide wheels (83) guide the hoisting rope. The two guide wheels (83) are provided with positioning holes (84) on both sides of their center on the side away from the rotating shafts (82). Two clips (85) corresponding to the positions of the guide wheels (83) are symmetrically arranged on the other side of the interior of the sealed cavity (81).

5. The metal mining hoist according to claim 4, characterized in that: The clamp (85) includes a fixed shaft (851) connected to the inner side of the sealed cavity (81). One end of the fixed shaft (851) is connected to an adjusting electromagnet (852), and an iron block (853) is laterally slidably sleeved on the outside of the fixed shaft (851). A second spring (854) is sleeved on the outside of the fixed shaft (851) on one side of the iron block (853). The two ends of the second spring (854) are respectively connected to the inner side of the sealed cavity (81) and one side of the iron block (853). One side of the iron block (853) is rotatably provided with a guide. The guide wheel (83) has a limiting cylinder (855) with the same central axis position. The end face of the limiting cylinder (855) away from the iron block (853) is provided with two convex shafts (856). When the guide wheel (83) rotates, the two positioning holes (84) on the guide wheel (83) can pass through the corresponding positions of the two convex shafts (856). The end of the limiting cylinder (855) away from the convex shafts (856) is fitted with a spring spring (857). The two ends of the spring spring (857) are respectively connected to the side of the iron block (853) and the outer wall of the limiting cylinder (855).

6. The metal mining hoist according to claim 5, characterized in that: The attraction force of the adjusting electromagnet (852) to the iron block (853) is greater than the elasticity of the second spring (854). When the adjusting electromagnet (852) attracts the iron block (853) and the positioning hole (84) on the guide wheel (83) corresponds to the position of the convex shaft (856), the convex shaft (856) is just inserted into the positioning hole (84).

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