European style steel wire rope electric hoist

Abstract

The present application belongs to the technical field of electric hoist, in particular to a European style steel wire rope electric hoist, which comprises a slide rail, the outer wall of the slide rail is slidably connected with a slide table, the bottom of the slide table is fixedly connected with an outer cover, and the bottom of the outer cover is fixedly connected with a base; the European style steel wire rope electric hoist is provided, when hoisting an object (such as a plate-shaped object), the object needs to be kept stable when the first pull rope is in a straightened state, at this time, a plurality of hooks simultaneously hook and pull different positions of the object, if one of the second pull ropes is in a straightened state and the object is in an inclined state, then the other second pull rope in a slack state is pulled upward, the second pull rope is pulled out from the slot, the first pull rope is wound, the object is moved upward, at this time, under the action of the gravity of the object, the limiting bead abuts against the straight surface on the other side of the clamping block, the second pull rope is limited in the slot by the clamping block, thereby keeping the object in a flat state and rising upward.

Description

Technical Field

[0001] This invention belongs to the field of electric hoist technology, specifically a European-style wire rope electric hoist. Background Technology

[0002] Wire rope electric hoists are small lifting equipment with advantages such as compact structure, light weight, small size, strong component versatility, and convenient operation. They are mainly used for various lifting, pulling, loading and unloading of heavy objects, oil tank inversion welding, and installation and movement of various large and medium-sized concrete, steel structures and mechanical equipment. They are suitable for civil engineering projects in construction and installation companies, factories and mines, bridge construction, power, shipbuilding, automobile manufacturing, construction, highways, bridges, metallurgy, mining, slope tunnels, well treatment and protection and other basic construction projects. The existing wire rope electric hoists are mainly composed of a shell, drum, wire rope, hook, reducer and motor connection. By fixing the motor to the shell and connecting the output shaft to the reducer, the reducer reduces the output speed and increases the torque. The drum is fixedly connected to the output shaft. The rotation of the motor can drive the drum to rotate, so that the drum drives the wire rope fixedly connected to the drum to rise and fall.

[0003] Most existing electric hoists only have one hook. If the hooked object is not located at the center of gravity, it will be tilted during the lifting process and more prone to swaying, making it difficult to maintain stability. Furthermore, when lifting plate-shaped objects, the multiple straps on the object may not be of equal length. When the hook pulls the straps upward, the plate-shaped object will be tilted, posing a significant risk of falling. In addition, the wire rope of the electric hoist will sway on the drum during winding, causing the hooked object to be constantly swaying, increasing the risk of the object falling off.

[0004] Therefore, the present invention provides a European-style wire rope electric hoist. Summary of the Invention

[0005] To address the shortcomings of existing technologies and the problems that most electric hoists only have one hook, if the hooked object is not located at the center of gravity, the object will be tilted during lifting and more prone to swaying, making it difficult to maintain stability. Furthermore, when lifting plate-shaped objects, the multiple straps on the plate may not be of equal length, causing the plate to tilt when the hook pulls the straps upward, greatly increasing the risk of it falling. In addition, the wire rope of the electric hoist will sway on the drum during winding, causing the hooked object to be in a constant state of swaying, increasing the risk of the object falling off. Therefore, this invention proposes a European-style wire rope electric hoist.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: A European-style wire rope electric hoist of the present invention includes a slide rail, a slide platform slidably connected to the outer wall of the slide rail, an outer cover fixedly connected to the bottom of the slide platform, a base fixedly connected to the bottom of the outer cover, a motor fixedly connected to the outer wall of the outer cover, the output end of the motor extending into the interior of the outer cover and fixedly connected to a rotating shaft, the rotating shaft being rotatably connected to the outer cover, a winding roller fixedly connected to the outer wall of the rotating shaft, a first pull rope wound around the outer wall of the winding roller, a mounting platform fixedly connected to the bottom of the first pull rope, a plurality of second pull ropes fixedly connected in a circular array at the bottom of the mounting platform, a hook fixedly connected to the bottom of the second pull ropes, and an adjustment component provided on the outer wall of the first pull rope.

[0007] Preferably, the adjusting component includes a fixing plate, which is fixedly installed through the outer wall of the first pull rope. Several brackets are fixedly connected in a circular array at the bottom of the fixing plate. Each bracket has a mounting block fixedly connected to its bottom. A slot is provided inside the mounting block, through which the second pull rope passes. A locking block is slidably connected inside the mounting block, with its top extending into the slot. A first spring is fixedly connected to the bottom of the locking block, and its bottom is fixedly connected to the mounting block. One side of the locking block is a slope, and the other side is a straight surface. Several limiting beads are fixedly connected at equal intervals to the outer wall of the second pull rope. An adjusting unit is provided on the outer wall of the locking block.

[0008] Preferably, the adjustment unit includes an inclined groove formed on the outer wall of the locking block, and a top rod is slidably connected inside the mounting block. One end of the top rod passes through the mounting block and is fixedly connected to a button.

[0009] Preferably, the bottom of the base is symmetrically fixedly connected to two pipes, and a guide ring is fixedly connected between the two pipes. The inner wall of the guide ring is set as an annular arc surface.

[0010] Preferably, the base has an internal cavity, and the top of the base has a liquid injection port that communicates with the cavity. The guide ring has two symmetrically arranged flow grooves inside, and a number of symmetrically arranged liquid outlets at equal intervals inside the guide ring that communicate with the flow grooves. One end of the pipe extends into the interior of the flow groove, and the other end of the pipe extends into the interior of the cavity and is fixedly connected to a U-shaped tube. The U-shaped tube is located inside the cavity, and a feeding assembly is provided on the outer wall of the pipe.

[0011] Preferably, the feeding assembly includes a sleeve box, which is fixedly connected to the outer wall of the pipe. A piston plate is slidably connected to the inner wall of the sleeve box. A sliding shaft is fixedly connected to one side of the piston plate. One end of the sliding shaft passes through the sleeve box and is fixedly connected to a top plate. A second spring is sleeved on the outer wall of the sliding shaft. One end of the second spring is fixedly connected to the sleeve box, and the other end of the second spring is fixedly connected to the top plate. Two one-way valves are symmetrically arranged on the inner wall of the pipe with the sleeve box as the center. Both one-way valves open from top to bottom.

[0012] Preferably, a limiting shaft is fixedly connected to the inner wall of the base, a slider is slidably connected to the outer wall of the limiting shaft, a reciprocating screw is rotatably connected to the inner wall of the outer cover, the reciprocating screw and the slider are connected by a screw-nut pair, and a linkage unit is provided at one end of the reciprocating screw.

[0013] Preferably, a traction ring is fixedly connected to the outer wall of the slider, and the first pull rope passes through the inside of the traction ring.

[0014] Preferably, the linkage unit includes a second synchronous pulley, one end of the reciprocating lead screw passes through the outside of the outer cover, the second synchronous pulley is fixedly installed at the end of the reciprocating lead screw, one end of the rotating shaft passes through the outer cover and is fixedly connected to a first synchronous pulley, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt drive.

[0015] Preferably, the outer wall of the take-up roller is provided with a plurality of limiting grooves in an annular array. A hydraulic cylinder is fixedly connected to the top of the inner wall of the outer cover. A pressing block is fixedly connected to the output end of the hydraulic cylinder. A limiting block is slidably connected to the inner wall of the pressing block. A third spring is fixedly connected to the top of the limiting block. The top of the third spring is fixedly connected to the pressing block. One side of the limiting block is set as an inclined surface, and the other side is set as a straight surface.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The European-style wire rope electric hoist of the present invention, when hoisting an object (such as a plate), requires the first pull rope to be in a taut state to keep the object stable. At this time, several hooks simultaneously hook and pull different positions of the object. If one of the second pull ropes is in a taut state and the object is tilted, then another second pull rope in a slack state is pulled upwards, so that the second pull rope passes out of the slot and winds up the first pull rope, moving the object upwards. At this time, under the action of the object's gravity, the limiting bead abuts against the straight surface of the other side of the locking block. Through the limiting of the locking block, the second pull rope is prevented from sliding in the slot, thereby keeping the object in a flat state as it rises.

[0018] 2. The European-style wire rope electric hoist of the present invention, while winding the first pull rope, the first pull rope passes through the guide ring. Through the limiting of the guide ring, the first pull rope remains centered and stable while moving upward, avoiding the swaying of the hooked object below. When the traction ring pulls the first pull rope to the end of the winding roller, by setting the inner wall of the guide ring to an annular arc shape, the friction between the first pull rope and the guide ring can be effectively reduced.

[0019] 3. The European-style wire rope electric hoist of the present invention, through the traction ring pulling the first pull rope, can make the first pull rope evenly wound on the take-up roller, avoiding the phenomenon of the first pull rope being tangled. At the same time as the slider moves back and forth left and right, in conjunction with the second spring, it can drive the piston plate to move back and forth left and right, squeezing the lubricant in the sleeve along the pipe into the flow groove. The lubricant entering the flow groove is discharged from several outlets, lubricating the inner wall of the guide ring. The first pull rope with the lubricant adhering to it can effectively reduce the wear between the guide ring and the traction ring. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the slide rail and hook used in conjunction with the present invention;

[0022] Figure 2 This is a perspective view of the outer casing of the present invention used in conjunction with the pipe;

[0023] Figure 3 This is an exploded view of the take-up roller and base of the present invention in use;

[0024] Figure 4 This is a cross-sectional view of the cavity and guide ring used in conjunction with the present invention;

[0025] Figure 5 This is a perspective view of the first and second pull ropes of the present invention used together;

[0026] Figure 6 This is a cross-sectional view of the U-shaped tube and guide ring used in conjunction with the present invention;

[0027] Figure 7 This is a cross-sectional view of the second pull cord and slot used in this invention;

[0028] Figure 8 This is an exploded view of the second pull rope of the present invention used in conjunction with the mounting block;

[0029] Figure 9 This is a perspective view of the pipe and guide ring used in conjunction with the present invention;

[0030] Figure 10 This is a cross-sectional view of the limiting block and the take-up roller of the present invention in use;

[0031] Figure 11 This is the present invention. Figure 2 Enlarged view of point A in the middle.

[0032] In the diagram: 1. Slide rail; 2. Slide table; 3. Outer cover; 4. Base; 5. Motor; 6. Shaft; 7. Take-up roller; 8. First pull rope; 9. Mounting platform; 10. Second pull rope; 11. Hook; 12. Limiting bead; 13. Fixing plate; 14. Bracket; 15. Mounting block; 16. Slot; 17. Locking block; 18. First spring; 19. Inclined groove; 20. Top rod; 21. Button; 22. Pipe; 23. Guide ring; 24. Cavity; 25. 26. Injection port; 27. U-shaped tube; 28. Flow groove; 29. ​​Outlet port; 30. Sleeve box; 31. Sliding shaft; 32. Piston plate; 33. Top plate; 34. Second spring; 35. Check valve; 36. Reciprocating screw; 37. Slider; 38. First synchronous pulley; 39. Second synchronous pulley; 40. Synchronous belt; 41. Traction ring; 42. Limiting groove; 43. Hydraulic cylinder; 44. Lowering block; 45. Third spring; 46. Limiting block; 47. Limiting shaft. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] like Figures 1 to 11As shown, the present invention provides a technical solution: a European-style wire rope electric hoist, including a slide rail 1, a slide table 2 slidably connected to the outer wall of the slide rail 1, an outer cover 3 fixedly connected to the bottom of the slide table 2, a base 4 fixedly connected to the bottom of the outer cover 3, a motor 5 fixedly connected to the outer wall of the outer cover 3, the output end of the motor 5 extending into the interior of the outer cover 3 and fixedly connected to a rotating shaft 6, the rotating shaft 6 being rotatably connected to the outer cover 3, a winding roller 7 fixedly connected to the outer wall of the rotating shaft 6, a first pull rope 8 wound around the outer wall of the winding roller 7, a mounting platform 9 fixedly connected to the bottom of the first pull rope 8, a plurality of second pull ropes 10 fixedly connected in a circular array at the bottom of the mounting platform 9, a hook 11 fixedly connected to the bottom of the second pull ropes 10, and an adjustment component provided on the outer wall of the first pull rope 8; the adjustment component includes a fixing plate 13, which is fixedly installed through the outer wall of the first pull rope 8. The bottom of component 3 is fixedly connected to several brackets 14 in a circular array. Each bracket 14 is fixedly connected to a mounting block 15. The mounting block 15 has a slot 16 inside. The second pull rope 10 passes through the slot 16. A locking block 17 is slidably connected inside the mounting block 15. The top of the locking block 17 extends into the slot 16. A first spring 18 is fixedly connected to the bottom of the locking block 17. The bottom of the first spring 18 is fixedly connected to the mounting block 15. One side of the locking block 17 is set as an inclined surface, and the other side is set as a straight surface. Several limiting beads 12 are fixedly connected at equal intervals to the outer wall of the second pull rope 10. An adjustment unit is provided on the outer wall of the locking block 17. The adjustment unit includes an inclined groove 19, which is opened on the outer wall of the locking block 17. A top rod 20 is slidably connected inside the mounting block 15. One end of the top rod 20 passes through the mounting block 15 and is fixedly connected to a button 21.

[0035] Through the above technical solution, by cooperating with the slide rail 1 and the slide table 2, the electric hoist can be controlled to slide along the slide rail 1 and its position adjusted. When hoisting objects (such as plate-shaped parts), it is necessary to keep the object stable when the first pull rope 8 is in a taut state. At this time, several hooks 11 simultaneously hook and pull different positions of the object. If one of the second pull ropes 10 is in a taut state and the object is tilted, then the other second pull rope 10 in a slack state is pulled upward, so that the second pull rope 10 passes out of the slot 16. As the second pull rope 10 moves upward in the slot 16, it drives the limit bead 12 to move in the slot 16. The limit bead 12 presses against the inclined surface of the locking block 17. Under the squeezing action of the limit bead 12, the locking block 17 is pushed downward, pressing the first spring 18 and shortening the second pull rope. When the length is 10, the process is reciprocating. After adjusting the second pull rope 10 from a slack state to a taut state, the motor 5 controls the rotating shaft 6 to rotate, causing the winding roller 7 to rotate and wind up the first pull rope 8, bringing the object upward. At this time, under the action of the object's gravity, the limiting bead 12 presses against the straight surface on the other side of the locking block 17. Through the limiting of the locking block 17, the second pull rope 10 is prevented from sliding in the slot 16, thereby keeping the object in a flat state as it rises. When releasing the wound second pull rope 10, the button 21 is pressed to drive the top rod 20 to move. The top rod 20 presses against the inclined groove 19 on the outer wall of the locking block 17. Under the pressure of the top rod 20, the locking block 17 is pushed downward, compressing the first spring 18. When the locking block 17 moves downward, it no longer presses against the limiting bead 12, and at this time, the second pull rope 10 can be extended downward.

[0036] Specifically, two pipes 22 are symmetrically fixedly connected to the bottom of the base 4, and a guide ring 23 is fixedly connected between the two pipes 22. The inner wall of the guide ring 23 is set as an annular arc surface.

[0037] With the above technical solution, while the first pull rope 8 is being wound up, the first pull rope 8 passes through the guide ring 23. Through the limiting of the guide ring 23, the first pull rope 8 remains centered and stable while moving upward, preventing the object hooked below from shaking.

[0038] Specifically, a limiting shaft 46 is fixedly connected to the inner wall of the base 4, and a slider 36 is slidably connected to the outer wall of the limiting shaft 46. A reciprocating screw 35 is rotatably connected to the inner wall of the outer cover 3. The reciprocating screw 35 and the slider 36 are connected through a screw and nut pair. A linkage unit is provided at one end of the reciprocating screw 35. The linkage unit includes a second synchronous wheel 38. One end of the reciprocating screw 35 passes through the outside of the outer cover 3. The second synchronous wheel 38 is fixedly installed at the end of the reciprocating screw 35. One end of the rotating shaft 6 passes through the outer cover 3 and is fixedly connected to a first synchronous wheel 37. The first synchronous wheel 37 and the second synchronous wheel 38 are connected by a synchronous belt 39. A traction ring 40 is fixedly connected to the outer wall of the slider 36, and a first pull rope 8 passes through the inside of the traction ring 40.

[0039] Through the above technical solution, while the rotating shaft 6 rotates, it drives the first synchronous wheel 37 to rotate. Through the transmission of the synchronous belt 39, it drives the second synchronous wheel 38 to rotate, causing the reciprocating screw 35 to rotate, driving the slider 36 to move back and forth left and right, and causing the traction ring 40 to move back and forth left and right. While winding the first pull rope 8, the traction ring 40 pulls the first pull rope 8 so that the first pull rope 8 is evenly wound on the take-up roller 7, avoiding the first pull rope 8 from becoming tangled. When the traction ring 40 pulls the first pull rope 8 to the end of the take-up roller 7, by setting the inner wall of the guide ring 23 to be annular arc, the friction between the first pull rope 8 and the guide ring 23 can be effectively reduced.

[0040] Specifically, the base 4 has an internal cavity 24, and the top of the base 4 has an injection port 25 that communicates with the cavity 24. The guide ring 23 has two symmetrically arranged flow grooves 27, and several symmetrically arranged outlets 28 that communicate with the flow grooves 27. One end of the pipe 22 extends into the flow groove 27, and the other end extends into the cavity 24 and is fixedly connected to a U-shaped tube 26. The U-shaped tube 26 is located inside the cavity 24, and a feeding assembly is provided on the outer wall of the pipe 22. The material assembly includes a sleeve 29, which is fixedly connected to the outer wall of the pipe 22. A piston plate 31 is slidably connected to the inner wall of the sleeve 29. A sliding shaft 30 is fixedly connected to one side of the piston plate 31. One end of the sliding shaft 30 passes through the sleeve 29 and is fixedly connected to a top plate 32. A second spring 33 is sleeved on the outer wall of the sliding shaft 30. One end of the second spring 33 is fixedly connected to the sleeve 29, and the other end of the second spring 33 is fixedly connected to the top plate 32. Two one-way valves 34 are symmetrically arranged on the inner wall of the pipe 22 with the sleeve 29 as the center. Both one-way valves 34 open from top to bottom.

[0041] Through the above technical solution, lubricant is injected into the cavity 24 through the injection port 25. When the slider 36 moves to a position close to the top plate 32, it pushes the top plate 32 to move, compressing the second spring 33. When the slider 36 moves to a position away from the top plate 32, it loses the compression of the slider 36. Under the action of the second spring 33, the top plate 32 moves back and resets. Thus, while controlling the first pull rope 8 to rewind or release, the top plate 32 moves back and forth left and right, driving the sliding shaft 30 to move back and forth left and right, causing the piston plate 31 to move back and forth left and right. When the piston plate 31 moves towards the guide ring 23... When the piston plate 31 is pulled out, in conjunction with the two one-way valves 34, the lubricant in the cavity 24 can be drawn into the casing 29 along the U-shaped tube 26 and the pipe 22. When the piston plate 31 moves towards the U-shaped tube 26, the lubricant in the casing 29 can be squeezed into the flow groove 27 along the pipe 22 by the piston plate 31 and the two one-way valves 34. The lubricant entering the flow groove 27 is discharged from several outlets 28 to lubricate the inner wall of the guide ring 23. The first pull rope 8 with the lubricant adhering to it can effectively reduce the wear between the guide ring 23 and the traction ring 40.

[0042] Specifically, the outer wall of the take-up roller 7 has a ring array of limiting grooves 41. The top of the inner wall of the outer cover 3 is fixedly connected to a hydraulic cylinder 42. The output end of the hydraulic cylinder 42 is fixedly connected to a pressing block 43. The inner wall of the pressing block 43 is slidably connected to a limiting block 45. The top of the limiting block 45 is fixedly connected to a third spring 44. The top of the third spring 44 is fixedly connected to the pressing block 43. One side of the limiting block 45 is set as an inclined surface, and the other side is set as a straight surface.

[0043] With the above technical solution, when the first pull rope 8 is released, the hydraulic cylinder 42 controls the lower pressure block 43 to move upward, driving the limit block 45 away from the limit groove 41. At this time, the motor 5 controls the take-up roller 7 to reverse, and the first pull rope 8 is released downward. When the first pull rope 8 is wound up, the hydraulic cylinder 42 controls the lower pressure block 43 to move downward, so that the lower pressure block 43 is close to the limit groove 41. The motor 5 controls the take-up roller 7 to rotate forward, winding up the first pull rope 8. At the same time as the take-up roller 7 rotates forward, the limit groove 41 presses against the inclined surface on one side of the limit block 45, pushing the limit block 45 to move upward and pressing the third spring 44. If the motor 5 loses power unexpectedly, the take-up roller 7 reverses under the gravity of the object, and the straight surface on the other side of the limit block 45 can press against the limit groove 41 to prevent the object from falling.

[0044] In use, the electric hoist can be controlled to slide along the slide rail 1 and adjust its position by cooperating with the slide table 2. When the first pull rope 8 is released, the hydraulic cylinder 42 controls the lower pressure block 43 to move upward, driving the limit block 45 away from the limit groove 41. At this time, the motor 5 controls the winding roller 7 to reverse, releasing the first pull rope 8 downward. When hoisting objects (such as plate-shaped parts), it is necessary to keep the object stable while the first pull rope 8 is taut. At this time, several hooks 11 are used to hook and pull different positions of the object simultaneously. If the second pull rope 10 is taut and the object is tilted, the second pull rope 10, which is in a slack state, is pulled upward, so that the second pull rope 10 passes through the slot 16. As the object moves upward within the slot 16, it causes the limiting bead 12 to move within the slot 16 as well. The limiting bead 12 presses against the inclined surface of one side of the locking block 17. Under the squeezing action of the limiting bead 12, the locking block 17 is pushed downward, compressing the first spring 18. After adjusting the second pull rope 10 from its relaxed state to a taut state, the rotating shaft 6 is rotated by the motor 5, causing the winding roller 7 to rotate and wind up the first pull rope 8, moving the object upward. At this time, under the action of the object's gravity, the limiting bead 12 presses against the straight surface of the other side of the locking block 17. Through the limiting action of the locking block 17, the second pull rope 10 is prevented from sliding within the slot 16, thus keeping the object in a flat state as it rises. When releasing the wound second pull rope 10, the button 21 is pressed to drive the object upward. The push rod 20 moves and presses against the inclined groove 19 on the outer wall of the locking block 17. Under the pressure of the push rod 20, the locking block 17 is pushed downward, pressing the first spring 18. After the locking block 17 moves downward, it no longer presses against the limiting bead 12, and the second pull rope 10 can be extended downward. When the first pull rope 8 is wound up, the lower pressure block 43 is controlled to move downward by the hydraulic cylinder 42, so that the lower pressure block 43 is close to the limiting groove 41. The winding roller 7 is controlled to rotate forward by the motor 5 to wind up the first pull rope 8. At the same time as the winding roller 7 rotates forward, the limiting groove 41 presses against the inclined surface on one side of the limiting block 45, pushing the limiting block 45 upward and pressing the third spring 44. If the motor 5 loses power unexpectedly, the winding roller 7 will reverse under the gravity of the object, and the limiting block will... The straight surface on the other side of 45 can abut against the limiting groove 41 to prevent objects from falling. While the rotating shaft 6 rotates, it drives the first synchronous wheel 37 to rotate. Through the transmission of the synchronous belt 39, it drives the second synchronous wheel 38 to rotate, causing the reciprocating screw 35 to rotate. This drives the slider 36 to move back and forth, causing the traction ring 40 to move back and forth. While winding up the first pull rope 8, the traction ring 40 pulls the first pull rope 8, ensuring it is evenly wound around the winding roller 7, preventing tangling. Simultaneously, while winding up the first pull rope 8, it passes through the guide ring 23. The guide ring 23 limits its movement, keeping the first pull rope 8 centered and stable as it moves upward, preventing the hooked object below from swaying.When the traction ring 40 pulls the first pull rope 8 to the end of the take-up roller 7, the friction between the first pull rope 8 and the guide ring 23 can be effectively reduced by setting the inner wall of the guide ring 23 to an annular arc. Lubricant is injected into the cavity 24 through the injection port 25. When the slider 36 moves to a position close to the top plate 32, it pushes the top plate 32 to move and presses the second spring 33. When the slider 36 moves to a position away from the top plate 32, it loses the compression of the slider 36. Under the action of the second spring 33, the top plate 32 moves back and resets. Thus, while controlling the first pull rope 8 to be wound or released, the top plate 32 moves back and forth left and right, driving the sliding shaft 30 to move back and forth left and right, so that the active... The piston plate 31 moves back and forth. When the piston plate 31 moves towards the guide ring 23, the pull of the piston plate 31, in conjunction with the two one-way valves 34, draws the lubricant in the cavity 24 along the U-shaped tube 26 and the pipe 22 into the casing 29. When the piston plate 31 moves towards the U-shaped tube 26, the squeeze of the piston plate 31, in conjunction with the two one-way valves 34, squeezes the lubricant in the casing 29 along the pipe 22 into the flow groove 27. The lubricant entering the flow groove 27 is discharged from several outlets 28, lubricating the inner wall of the guide ring 23. The first pull rope 8, coated with lubricant, effectively reduces wear between the guide ring 23 and the traction ring 40.

[0045] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0046] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A European-style wire rope electric hoist, characterized in that, Includes a slide rail (1), a slide table (2) is slidably connected to the outer wall of the slide rail (1), an outer cover (3) is fixedly connected to the bottom of the slide table (2), a base (4) is fixedly connected to the bottom of the outer cover (3), a motor (5) is fixedly connected to the outer wall of the outer cover (3), the output end of the motor (5) extends into the interior of the outer cover (3) and is fixedly connected to a rotating shaft (6), the rotating shaft (6) is rotatably connected to the outer cover (3), a take-up roller (7) is fixedly connected to the outer wall of the rotating shaft (6), a first pull rope (8) is wound around the outer wall of the take-up roller (7), a mounting platform (9) is fixedly connected to the bottom of the first pull rope (8), a number of second pull ropes (10) are fixedly connected to the bottom of the mounting platform (9) in a circular array, a hook (11) is fixedly connected to the bottom of the second pull ropes (10), and an adjustment component is provided on the outer wall of the first pull rope (8). The adjustment assembly includes a fixing plate (13), which is fixedly installed through the outer wall of the first pull rope (8). The bottom of the fixing plate (13) is fixedly connected to several brackets (14) in a circular array. The bottom of each bracket (14) is fixedly connected to a mounting block (15). The mounting block (15) has a slot (16) inside. The second pull rope (10) passes through the slot (16). The mounting block (15) is slidably connected to a locking block (17). The top of the locking block (17) extends into the inside of the slot (16). The bottom of the locking block (17) is fixedly connected to a first spring (18). The bottom of the first spring (18) is fixedly connected to the mounting block (15). One side of the locking block (17) is set as an inclined surface, and the other side is set as a straight surface. The outer wall of the second pull rope (10) is fixedly connected to several limiting beads (12) at equal intervals. The outer wall of the locking block (17) is provided with an adjustment unit. The adjustment unit includes a sloping groove (19), which is opened on the outer wall of the locking block (17). A top rod (20) is slidably connected inside the mounting block (15). One end of the top rod (20) passes through the mounting block (15) and is fixedly connected to a button (21). The bottom of the base (4) is symmetrically fixedly connected to two pipes (22), and a guide ring (23) is fixedly connected between the two pipes (22). The inner wall of the guide ring (23) is set as an annular arc surface. The base (4) has a cavity (24) inside, and a liquid injection port (25) is opened on the top of the base (4). The liquid injection port (25) communicates with the cavity (24). The guide ring (23) has two symmetrical flow grooves (27) inside. The guide ring (23) has several symmetrically spaced liquid outlets (28) inside. The liquid outlets (28) communicate with the flow grooves (27). One end of the pipe (22) extends into the interior of the flow groove (27), and the other end of the pipe (22) extends into the interior of the cavity (24) and is fixedly connected to a U-shaped pipe (26). The U-shaped pipe (26) is located inside the cavity (24). The outer wall of the pipe (22) is provided with a feeding assembly. The feeding assembly includes a sleeve (29), which is fixedly connected to the outer wall of the pipe (22). A piston plate (31) is slidably connected to the inner wall of the sleeve (29). A sliding shaft (30) is fixedly connected to one side of the piston plate (31). One end of the sliding shaft (30) passes through the sleeve (29) and is fixedly connected to a top plate (32). A second spring (33) is sleeved on the outer wall of the sliding shaft (30). One end of the second spring (33) is fixedly connected to the sleeve (29), and the other end of the second spring (33) is fixedly connected to the top plate (32). Two one-way valves (34) are symmetrically arranged on the inner wall of the pipe (22) with the sleeve (29) as the center. Both one-way valves (34) open from top to bottom.

2. The European-style wire rope electric hoist according to claim 1, characterized in that, The inner wall of the base (4) is fixedly connected to a limiting shaft (46), and the outer wall of the limiting shaft (46) is slidably connected to a slider (36). The inner wall of the outer cover (3) is rotatably connected to a reciprocating screw (35). The reciprocating screw (35) and the slider (36) are connected by a screw and nut pair. One end of the reciprocating screw (35) is provided with a linkage unit.

3. The European-style wire rope electric hoist according to claim 2, characterized in that, The outer wall of the slider (36) is fixedly connected to a traction ring (40), and the first pull rope (8) passes through the inside of the traction ring (40).

4. A European-style wire rope electric hoist according to claim 3, characterized in that, The linkage unit includes a second synchronous pulley (38), one end of the reciprocating screw (35) passes through the outside of the outer cover (3), the second synchronous pulley (38) is fixedly installed at the end of the reciprocating screw (35), one end of the rotating shaft (6) passes through the outer cover (3) and is fixedly connected to a first synchronous pulley (37), and the first synchronous pulley (37) and the second synchronous pulley (38) are connected by a synchronous belt (39).

5. A European-style wire rope electric hoist according to claim 4, characterized in that, The outer wall of the take-up roller (7) is provided with a number of limiting grooves (41) in an annular array. A hydraulic cylinder (42) is fixedly connected to the top of the inner wall of the outer cover (3). A pressing block (43) is fixedly connected to the output end of the hydraulic cylinder (42). A limiting block (45) is slidably connected to the inner wall of the pressing block (43). A third spring (44) is fixedly connected to the top of the limiting block (45). The top of the third spring (44) is fixedly connected to the pressing block (43). One side of the limiting block (45) is set as an inclined surface, and the other side is set as a straight surface.

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