Closed winch type hoist

Abstract

The invention provides a closed winch hoist, belongs to the technical field of hoists, and solves the technical problems of poor safety, short service life and the like in the prior art. The closed winch type hoist comprises a base, a machine shell is fixed to the base through bolts, a first opening is formed in the base, a winding drum is rotationally connected to the interior of the machine shell, two winding parts are arranged on the winding drum in a bilateral symmetry mode, a spiral winding groove is formed in each winding part, and a steel wire rope is wound in each spiral winding groove. A two-way screw is rotationally connected into the machine shell and is in threaded connection with a guide seat, a first extending hole is formed in the middle of the guide seat, a rotating disc is rotationally connected to the upper end of the guide seat, and an annular mounting seat in sliding connection with the guide seat is fixed to the lower side of the rotating disc. The device has the advantages that the winding mechanism is closed, dryness of the interior of the winding mechanism is guaranteed, the risk that the steel wire rope slides on the winding drum is reduced, and safety is improved.

Description

Technical Field

[0001] This invention belongs to the field of gate hoisting technology, and relates to a gate hoisting machine, particularly a closed winch-type gate hoisting machine. Background Technology

[0002] Gate hoists are used in various large-scale water supply and drainage, water conservancy and hydropower projects. They are used to control the raising and lowering of various large and medium-sized cast iron and steel gates to achieve the purpose of opening and closing. Gate hoists are generally classified into screw-type gate hoists, winch-type gate hoists, and hydraulic gate hoists.

[0003] Currently, when vertical winch gate hoists are used for hoisting and opening / closing gates, the wire rope wound on the winch drum is exposed. As the usage time increases, dust and clumps easily adhere to the surface of the wire rope, which has a certain impact on the use of the wire rope.

[0004] A search revealed a Chinese patent document disclosing a vertical winch-type gate opener [Application No.: 202421640877.2; Publication No.: CN 222757839 U]. This gate opener includes a base, a winch drum, a wire rope, a driven gear, a drive motor, and a drive gear. The wire rope is sleeved on the outer end of the winch drum. The driven gear meshes with the drive gear, which is fixedly sleeved on the outer wall of the winch drum. Connecting plates and fixing plates are fixedly connected to both sides of the lower end face of the base, respectively. A lever plate is rotatably connected between the connecting plates. Brush bristles are fixedly connected to the outer walls of the lever plate and the fixing plate on opposite sides. The wire rope passes through the brush bristles. By setting up the lever plate, fixing plate, and brush bristle structure, the wire rope is effectively cleaned. This solves the problem that traditional wire ropes wound on the winch drum are exposed, and with increasing use, dust easily adheres to the surface of the wire rope, affecting its use. This design is practical.

[0005] Although the gate opener disclosed in this patent achieves the effect of cleaning the wire rope by setting up a toggle plate, a fixing plate, and a brush structure, this device can only clean the wire rope. The wire rope is exposed to the environment for a long time, and it is not only subject to rain erosion, but also to corrosion from the humid environment due to its location on a river. This affects the service life of the wire rope and the winding mechanism. Furthermore, when the wire rope is wound, it will move towards the center and be subjected to oblique tension, causing it to slide from the center of the winding drum to both ends, which affects the safety of use. Summary of the Invention

[0006] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a closed-type winch gate opener. The technical problem this invention aims to solve is: how to achieve the enclosure of the winding mechanism, ensure its internal dryness, reduce the risk of the wire rope slipping on the winding drum, and improve safety.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A closed-type winch gate opener includes a base, on which a housing is fixed by bolts. A first opening is provided on the base. A winding drum is rotatably connected inside the housing. Two winding sections are symmetrically arranged on the winding drum, each with a spiral winding groove. A steel wire rope is wound within the spiral winding groove. A bidirectional screw is rotatably connected inside the housing, and a guide seat is threaded onto the bidirectional screw. A first extension hole is provided in the center of the guide seat. A turntable is rotatably connected to the upper end of the guide seat. An annular mounting seat, slidably connected to the guide seat, is fixed to the lower side of the turntable. A first motor is fixed inside the guide seat, and a drive gear is fixed to the output shaft end of the first motor. An annular gear ring is fixed to the lower side of the annular mounting seat, and the drive gear meshes with the annular gear ring. A wheel frame is fixed to the upper side of the turntable, and a first guide wheel and a second guide wheel are rotatably connected to the wheel frame. A drive mechanism is provided on the housing, and the bidirectional screw and the winding drum are both connected to the drive mechanism.

[0009] The working principle of this invention is as follows: One end of the wire rope is fixed to the winding drum, and the other end of the wire rope is wound around the first guide wheel and the second guide wheel, then passes through the first extension hole and the first opening in sequence, thus extending out from the lower end of the base and connecting with the gate. When the gate is closed, the wire rope is located at both ends of the winding drum, at which time the distance between the two guide wheels is the greatest. When the gate is open, the drive mechanism drives the winding drum and the bidirectional screw to rotate. The winding drum winds up the wire rope, and the bidirectional screw drives the two guide seats to move closer to each other. While the winding drum winds up the wire rope, the guide seats drive the wire rope to move laterally, thereby making the winding of the wire rope and the position of the spiral winding groove more aligned. The first extension hole is always aligned with the second motor, which drives the drive gear to rotate. The drive gear, through the ring gear, drives the turntable to rotate, which in turn drives the guide wheel to rotate around the first extension hole. This ensures that the position of the guide wheel corresponds to the position of the spiral winding groove, keeping the wire rope vertical between the spiral winding groove and the guide wheel. This prevents the wire rope from shifting from the spiral winding groove under the weight of the gate, thus ensuring operational stability and improving the safety of gate opening. It also reduces the probability of accidents caused by the wire rope detaching from the spiral winding groove and reduces friction between the wire rope and the first extension hole, thus protecting the wire rope.

[0010] The drive mechanism includes a second motor, which is fixed to the right end of the housing. The output shaft of the second motor is fixedly connected to the take-up drum. A closed box is fixed to the left end of the housing by bolts. A rotating shaft extending into the closed box is fixed to the left end of the take-up drum. A first transmission gear is mounted on the rotating shaft. The left end of the bidirectional screw extends into the closed box and is fixed with a second transmission gear. The first transmission gear and the second transmission gear mesh.

[0011] With the above structure, the second motor drives the winding drum to rotate and wind up the wire rope. At this time, the winding drum drives the second driven gear to rotate through the first driven gear, thereby causing the bidirectional screw to rotate. The bidirectional screw drives the two guide seats to move closer to each other, which can ensure the synchronicity of the rotation of the bidirectional screw and the winding drum, thus ensuring that the position of the guide seats can be synchronized with the winding of the wire rope, and ensuring the stability of the device operation.

[0012] A sealing plate is fixed to the lower end of the inner part of the casing. Two second openings are opened on the sealing plate. A sealing seat is slidably connected in the second opening. A second protrusion hole is opened on the sealing seat. A first sealing bladder and a second sealing bladder are fixed to the left and right ends of the second opening, respectively. Both the first sealing bladder and the second sealing bladder are filled with magnetorheological fluid. An electromagnetic generator is fixed in the first sealing bladder and the second sealing bladder. The first sealing bladder and the second sealing bladder are connected by a flow pipe.

[0013] With the above structure, the wire rope passes through the first extension hole, then enters the second extension hole, and then extends out from the first opening. The combination of the sealing plate and the sealing seat ensures that the winding drum is in a sealed environment, preventing moisture from river water from entering the casing through the first opening. This keeps the inside of the casing dry, reducing corrosion of internal components, extending the device's lifespan, reducing malfunctions, and improving operational safety. During wire rope winding and unwinding, the electromagnetic generator is turned off, and the magnetorheological fluid exhibits low-viscosity Newtonian fluid characteristics in the absence of an external magnetic field, thus ensuring the sealing... As the sealing seat moves left and right with the wire rope, the magnetorheological fluid can flow between the first and second sealing chambers, ensuring the smooth movement of the sealing seat. After the wire rope stops winding and unwinding, the electromagnetic generator is turned on. Under the action of the magnetic field, the magnetorheological fluid becomes a high-viscosity, low-flow Bingham fluid, which becomes difficult to flow, thus fixing the position of the sealing seat. This ensures the sealing performance of the sealing plate while using the sealing seat to limit and support the lateral position of the wire rope, reducing the oblique pulling force on the winding drum, the first guide wheel, and the second guide wheel, and further improving the stability of the device.

[0014] The second opening has grooves on both the front and rear sides, and sliders are fixed on the front and rear sides of the first and second sealing bladders. The grooves are slidably connected to the sliders, and the thickness of the first and second sealing bladders is greater than the longitudinal width of the grooves.

[0015] By adopting the above structure, the positions of the first and second sealing bladders can be limited by the slider and the groove, which improves the stability of the first and second sealing bladders when they move and fold. Furthermore, the thickness of the first and second sealing bladders is greater than the longitudinal width of the groove, which can prevent the groove from affecting the sealing performance of the sealing plate.

[0016] The enclosed seat has symmetrically arranged drive chambers inside. A third motor is fixed inside the drive chamber. A threaded rod is fixedly connected to the output shaft of the third motor. A plug is threadedly connected to the threaded rod. The plug is slidably connected to the enclosed seat. The other end of the plug extends into the second extension hole. Several through holes are opened on the wire rope. A steel ring is fixed in the through holes.

[0017] With the above structure, under normal conditions, the insert post is retracted into the drive cavity, and the outer end of the insert post is flush with the side wall of the second extension hole. After the wire rope is wound up, the third motor can be turned on. The third motor drives the threaded rod to rotate, thereby moving the insert post towards the second extension hole and inserting it into the extension hole of the steel ring. This structure can use the cooperation of the insert post and the steel ring to support the wire rope, share some of the gate's weight with the winding drum, and protect the winding drum. At the same time, when the winding drum malfunctions, the insert post can also support the gate for a short time to prevent the winding drum from reversing and causing the gate to fall when opening, thus improving operational safety.

[0018] Support cylinders are fixed on both the upper and lower sides of the insertion post. A limit block is slidably connected inside the support cylinder. A first spring is fixed between the limit block and the support cylinder. A connecting rod is fixed on the limit block. A wiping component is fixed at the other end of the connecting rod.

[0019] With the above structure, during use, the wiping component is in contact with the wire rope. When the wire rope is wound and moving, the wiping component wipes and cleans the surface of the wire rope, making the surface of the wire rope clean and dry, preventing debris and moisture from the wire rope from entering the machine housing. At the same time, when the insert is inserted into the steel ring, it compresses the first spring, allowing the wiping component to be in close contact with the wire rope. Thus, when the wire rope is not wound, the cooperation between the wiping component and the second protruding hole ensures the sealing of the moving seat.

[0020] The wiping assembly includes a connecting seat, which is fixedly connected to a connecting rod. A support shaft is fixed on the connecting rod. A first arc-shaped plate and a connecting ear are rotatably connected to the support shaft. A second arc-shaped plate is fixed on the connecting ear. A torsion spring is fixed between the connecting ear and the second arc-shaped plate. Wiping cotton is fixed to the inner circumference of the first arc-shaped plate and the second arc-shaped plate.

[0021] With the above structure, during operation, the wiping cotton comes into contact with the wire rope. When the wire rope is wound up, the elastic force of the first spring is small, allowing the wiping cotton to wipe the wire rope. When fixed, the elastic force of the first spring is large, allowing the wiping cotton to be squeezed, thus ensuring good sealing of the wiping cotton. The torsion spring ensures that the parts of the first and second arc plates away from the connecting seat can be in close contact with the wire rope, improving the stability of the device during operation.

[0022] Two cleaning seats are slidably connected in the first opening through a limiting groove. A third protruding hole is opened in the center of the cleaning seat. A bracket is fixed symmetrically on the left and right sides at the lower end of the cleaning seat. A third guide wheel is rotatably connected on the bracket. The steel wire rope passes through the third protruding hole and is located between the two third guide wheels. A cleaning component is installed inside the cleaning seat.

[0023] With the above structure, during operation, the position of the wire rope can be limited by two third guide wheels, thereby preventing the wire rope from contacting the lower end of the cleaning seat and protecting the wire rope. Furthermore, the portion of the wire rope between the second and third guide wheels is in a vertical state, which distributes the oblique tension of the wire rope, reduces local pressure, and improves the stability of the device. When the wire rope is wound up, the cleaning component can be used to clean the debris on the wire rope, ensuring the cleanliness of the wire rope.

[0024] The cleaning assembly includes an annular seat, with an annular seat rotatably connected to the upper part of the cleaning seat. A driven gear ring is fixed to the outer periphery of the annular seat. A fourth motor is fixed inside the cleaning seat. A drive gear is fixed to the output shaft end of the fourth motor. The drive gear meshes with the driven gear ring. A mounting frame is fixed to the lower side of the annular seat. A belt roller is rotatably connected to the mounting frame. A fifth motor that drives the belt roller is fixed to the mounting frame. A conveyor belt is provided on the belt roller on the same mounting frame. A cleaning brush is provided on the outer side of the conveyor belt.

[0025] With the above structure, the wire rope is located between the two mounting frames during use. When the wire rope is wound up, the fourth and fifth motors are turned on. The fourth motor drives the cleaning brush to rotate around the wire rope, while the fifth motor drives the cleaning brush to brush up and down on the surface of the wire rope. This not only cleans more thoroughly but also has a better cleaning effect.

[0026] The cleaning brush includes a cylinder connected to a conveyor belt. A sliding plate is slidably connected inside the cylinder, and a sliding column is fixed on the sliding plate. The other end of the sliding column extends out of the cylinder and is fixed with bristles. Ventilation holes are provided on the sliding column and the sliding plate. A second spring is fixed between the sliding plate and the cylinder. A metal block is fixed on the sliding plate. An electromagnet is fixed on the cylinder. Several heaters are fixed inside the cylinder.

[0027] With the above structure, when cleaning the wire rope, the heater and the electromagnet can be turned on intermittently. By controlling the on and off of the electromagnet in conjunction with the second spring, the bristles vibrate on the wire rope, improving the cleaning effect of the bristles. At the same time, when the sliding plate moves back and forth, the heated air inside the cylinder can be sprayed out from the vent, thereby drying the wire rope. The cleaning effect is good, the structure is compact, and the cost of the equipment is reduced.

[0028] Compared with existing technologies, this closed-type winch gate opener has the following advantages:

[0029] 1. One end of the wire rope is fixed to the winding drum. The other end of the wire rope is wound around the first guide wheel and the second guide wheel, then passes through the first extension hole and the first opening in sequence, thus extending from the lower end of the base and connecting to the gate. When the gate is closed, the wire rope is located at both ends of the winding drum, at which point the distance between the two guide wheels is greatest. When the gate is opened, the drive mechanism drives the winding drum and the double-headed screw to rotate. The winding drum winds up the wire rope, and the double-headed screw drives the two guide seats to move closer together. While the winding drum winds up the wire rope, the guide seats drive the wire rope to move laterally, so that the winding of the wire rope and the position of the spiral winding groove are always aligned. Simultaneously, the second motor drives the drive gear to rotate, which in turn drives the turntable to rotate via a ring gear. The turntable then drives the guide wheel to rotate around the first extension hole, thus aligning the position of the guide wheel with the position of the spiral winding groove. This ensures that the wire rope remains vertical between the spiral winding groove and the guide wheel, preventing the wire rope from shifting from the spiral winding groove under the weight of the gate. This guarantees operational stability, improves the safety of gate opening, and reduces the probability of accidents caused by the wire rope detaching from the spiral winding groove. It also reduces friction between the wire rope and the first extension hole, thus protecting the wire rope.

[0030] 2. The second motor drives the winding drum to rotate and wind up the wire rope. At this time, the winding drum drives the second driven gear to rotate through the first driven gear, which in turn causes the bidirectional screw to rotate. The bidirectional screw drives the two guide seats to move closer to each other, which can ensure the synchronicity of the rotation of the bidirectional screw and the winding drum. This ensures that the position of the guide seats can move synchronously with the winding of the wire rope, thus ensuring the stability of the device.

[0031] 3. After the wire rope passes through the first extension hole, it enters the second extension hole and then extends out from the first opening. The combination of the sealing plate and the sealing seat ensures that the winding drum is in a sealed environment, preventing moisture from river water from entering the machine housing through the first opening. This keeps the inside of the housing dry, reducing corrosion of internal components, extending the lifespan of the device, reducing malfunctions, and improving operational safety. During wire rope winding and unwinding, the electromagnetic generator is turned off. The magnetorheological fluid exhibits low-viscosity Newtonian fluid characteristics in the absence of an external magnetic field, thus ensuring the sealing seat... As the wire rope moves left and right, the magnetorheological fluid can flow between the first and second enclosed chambers, ensuring the smooth movement of the sealing seat. After the wire rope stops winding and unwinding, the electromagnetic generator is turned on. Under the action of the magnetic field, the magnetorheological fluid becomes a high-viscosity, low-flow Bingham fluid, which becomes difficult to flow, thus fixing the position of the sealing seat. This ensures the sealing performance of the sealing plate while using the sealing seat to limit and support the lateral position of the wire rope, reducing the oblique pulling force on the winding drum, the first guide wheel, and the second guide wheel, and further improving the stability of the device.

[0032] 4. Under normal conditions, the insert post is retracted into the drive chamber, with its outer end flush with the side wall of the second extension hole. After the wire rope is wound up, the third motor can be turned on. The third motor drives the threaded rod to rotate, causing the insert post to move towards the second extension hole and insert into the extension hole of the steel ring. This structure can use the cooperation of the insert post and the steel ring to support the wire rope, share some of the gate's weight with the winding drum, and protect the winding drum. At the same time, when the winding drum malfunctions, the insert post can also support the gate for a short time to prevent the winding drum from reversing and causing the gate to fall when opening, thus improving operational safety.

[0033] 5. During use, the wiping component is in contact with the wire rope. When the wire rope is rewinding and moving, the wiping component wipes and cleans the surface of the wire rope, making the surface of the wire rope clean and dry, preventing debris and moisture from the wire rope from entering the machine housing. At the same time, when the insert is inserted into the steel ring, it compresses the first spring, so that the wiping component can be tightly attached to the wire rope. Thus, when the wire rope is not rewinding, the cooperation between the wiping component and the second protruding hole ensures the sealing of the moving seat.

[0034] 6. During operation, the wiping cotton comes into contact with the wire rope. When the wire rope is being wound up, the elastic force of the first spring is relatively small, allowing the wiping cotton to wipe the wire rope. When the wire rope is fixed, the elastic force of the first spring is relatively large, allowing the wiping cotton to be squeezed, thus ensuring good sealing of the wiping cotton. The torsion spring design allows the portions of the first and second arc-shaped plates away from the connecting seat to be in close contact with the wire rope, improving the stability of the device during operation. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the present invention.

[0036] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0037] Figure 3 This is a schematic diagram of the structure of the closed plate in this invention.

[0038] Figure 4 This is a schematic diagram of the structure of the sealing seat in this invention.

[0039] Figure 5 This is a schematic diagram of the wiping component in this invention.

[0040] Figure 6 This is a side view of the wiping component in this invention.

[0041] Figure 7 This is a schematic diagram of the structure of the first arc-shaped plate and the second arc-shaped plate in this invention.

[0042] Figure 8 This is a schematic diagram of the guide seat in this invention.

[0043] Figure 9 This is a schematic diagram of the cleaning seat in this invention.

[0044] Figure 10 This is a schematic diagram of the cleaning brush in this invention.

[0045] Figure 11 This is a schematic diagram of the steel wire rope structure in this invention.

[0046] In the diagram, 1. Base; 2. Housing; 3. Enclosed box; 4. Second motor; 5. Cleaning seat; 6. Rewind drum; 7. Spiral winding groove; 8. First transmission gear; 9. Second transmission gear; 10. Bidirectional screw; 11. Guide seat; 12. First opening; 13. Limiting groove; 14. Sealing plate; 15. Second opening; 16. Sealing seat; 17. Second extension hole; 18. First sealing chamber; 19. Electromagnetic generator; 20. Slide groove; 21. Slider; 22. Flow pipe; 23. Second sealing chamber; 24. Third motor; 25. Drive cavity; 26. Insert post; 27. Support cylinder; 28. First spring; 29. ​​Limiting block; 30. Connecting rod; 31. First arc plate; 2. Connecting seat; 33. Second arc plate; 34. Wiping cotton; 35. Connecting ear; 36. Torsion spring; 37. Turntable; 38. Annular mounting seat; 39. Annular gear ring; 40. First motor; 41. Drive gear; 42. Wheel frame; 43. First guide wheel; 44. Annular seat; 45. Mounting frame; 46. Belt roller; 47. Conveyor belt; 48. Cleaning brush; 49. Fourth motor; 50. Drive gear; 51. Steel ring; 52. Cylinder; 53. Sliding column; 54. Brush bristles; 55. Sliding plate; 56. Vent hole; 57. Electromagnet; 58. Metal block; 59. Second spring; 60. Heater; 61. Second guide wheel; 62. Third guide wheel; 63. Steel wire rope. Detailed Implementation

[0047] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0048] like Figures 1-11As shown, this closed-type winch gate opener includes a base 1, on which a housing 2 is fixed by bolts. A first opening 12 is provided on the base 1. A winding drum 6 is rotatably connected inside the housing 2. Two winding sections are symmetrically arranged on the winding drum 6, each with a spiral winding groove 7. A steel wire rope 63 is wound within the spiral winding groove 7. A bidirectional screw 10 is rotatably connected inside the housing 2. A guide seat 11 is threaded onto the bidirectional screw 10. A first extension hole is provided in the center of the guide seat 11, and a rotating... The turntable 37 has an annular mounting base 38 fixed to its lower side, which is slidably connected to the guide seat 11. The guide seat 11 has a first motor 40 fixed inside, and a drive gear 41 is fixed to the output shaft end of the first motor 40. An annular gear ring 39 is fixed to the lower side of the annular mounting base 38. The drive gear 41 meshes with the annular gear ring 39. A wheel frame 42 is fixed to the upper side of the turntable 37. A first guide wheel 43 and a second guide wheel 61 are rotatably connected to the wheel frame 42. A drive mechanism is provided on the housing 2. The bidirectional screw 10 and the winding drum 6 are both connected to the drive mechanism.

[0049] The working principle of this invention is as follows: One end of the wire rope 63 is fixed to the winding drum 6, and the other end of the wire rope 63 is wound around the first guide wheel 43 and the second guide wheel 61, then passes through the first extension hole and the first opening 12 in sequence, thus extending out from the lower end of the base 1 and connecting with the gate. When the gate is closed, the wire rope 63 is located at both ends of the winding drum 6, at which time the distance between the two guide wheels is the greatest. When the gate is open, the drive mechanism drives the winding drum 6 and the double-headed screw 10 to rotate. The winding drum 6 winds up the wire rope 63, and the double-headed screw 10 drives the two guide seats 11 to move closer to each other. While the winding drum 6 winds up the wire rope 63, the guide seats 11 drive the wire rope 63 to move laterally, thereby making the winding of the wire rope 63 and the spiral winding... The position of the spiral winding groove 7 always corresponds to the position of the guide wheel. At the same time, the second motor 4 drives the drive gear 41 to rotate. The drive gear 41 drives the turntable 37 to rotate through the ring gear 39. The turntable 37 drives the guide wheel to rotate around the first extension hole, so that the position of the guide wheel corresponds to the position of the spiral winding groove 7. This ensures that the wire rope 63 is always in a vertical state between the spiral winding groove 7 and the guide wheel, preventing the position of the wire rope 63 from shifting from the spiral winding groove 7 under the gravity of the gate. This ensures the stability of the operation, improves the safety of the gate opening, and reduces the probability of accidents caused by the wire rope 63 detaching from the spiral winding groove 7. It also reduces the friction between the wire rope 63 and the first extension hole, thus protecting the wire rope 63.

[0050] The drive mechanism includes a second motor 4, which is fixed to the right end of the housing 2. The output shaft of the second motor 4 is fixedly connected to the take-up drum 6. The left end of the housing 2 is fixed with a sealed box 3 by bolts. The left end of the take-up drum 6 is fixed with a rotating shaft that extends into the sealed box 3. A first transmission gear 8 is mounted on the rotating shaft. The left end of the bidirectional screw 10 extends into the sealed box 3 and is fixed with a second transmission gear 9. The first transmission gear 8 and the second transmission gear 9 mesh with each other.

[0051] With the above structure, the second motor 4 drives the winding drum 6 to rotate and wind up the wire rope 63. At this time, the winding drum 6 drives the second driven gear to rotate through the first driven gear, thereby causing the bidirectional screw 10 to rotate. The bidirectional screw 10 drives the two guide seats 11 to move closer to each other, which can ensure the synchronicity of the rotation of the bidirectional screw 10 and the winding drum 6, thereby ensuring that the position of the guide seat 11 can be synchronized with the winding of the wire rope 63, and ensuring the stability of the device operation.

[0052] A sealing plate 14 is fixed to the lower end of the inner casing 2. Two second openings 15 are opened on the sealing plate 14. A sealing seat 16 is slidably connected in the second opening 15. A second extension hole 17 is opened on the sealing seat 16. A first sealing bladder 18 and a second sealing bladder 23 are fixed to the left and right ends of the second opening 15, respectively. Both the first sealing bladder 18 and the second sealing bladder 23 are filled with magnetorheological fluid. An electromagnetic generator 19 is fixed in the first sealing bladder and the second sealing bladder. The first sealing bladder 18 and the second sealing bladder 23 are connected by a flow pipe 22.

[0053] With the above structure, the wire rope 63 passes through the first extension hole, then enters the second extension hole 17, and then extends out from the first opening 12. The cooperation of the sealing plate 14 and the sealing seat 16 ensures that the winding drum 6 is in a sealed environment, preventing moisture from the river water from entering the housing 2 through the first opening 12, thus ensuring the dryness of the housing 2's interior. This reduces corrosion to internal components, extends the device's service life, reduces malfunctions, and improves operational safety. During the winding and unwinding of the wire rope 63, the electromagnetic generator 19 is turned off. The magnetorheological fluid exhibits low-viscosity Newtonian fluid characteristics in the absence of an external magnetic field, thereby ensuring the sealing seat 16 remains dry. 6. As the wire rope 63 moves left and right, the magnetorheological fluid can flow between the first enclosed chamber 18 and the second enclosed chamber 23, ensuring the smooth movement of the enclosed seat 16. After the wire rope 63 stops winding, the electromagnetic generator 19 is turned on. Under the action of the magnetic field, the magnetorheological fluid becomes a high-viscosity, low-flow Bingham fluid, which becomes difficult to flow, thus fixing the position of the enclosed seat 16. This ensures the sealing of the enclosed plate 14 while using the enclosed seat 16 to limit and support the lateral position of the wire rope 63, reducing the oblique pulling force on the winding drum 6, the first guide wheel 43, and the second guide wheel 61, and further improving the stability of the device.

[0054] The second opening 15 has grooves 20 on both the front and rear sides. The first sealing bladder 18 and the second sealing bladder 23 are fixed with sliders 21 on the front and rear sides. The grooves 20 and the sliders 21 are slidably connected. The thickness of the first sealing bladder 18 and the second sealing bladder 23 is greater than the longitudinal width of the grooves 20.

[0055] By adopting the above structure, the positions of the first sealing bladder 18 and the second sealing bladder 23 can be limited by the slider 21 and the groove 20, thereby improving the stability of the first sealing bladder 18 and the second sealing bladder 23 when they move and fold. Furthermore, the thickness of the first sealing bladder 18 and the second sealing bladder 23 is greater than the longitudinal width of the groove 20, which can prevent the groove 20 from affecting the sealing performance of the sealing plate 14.

[0056] The closed seat 16 has symmetrically arranged drive chambers 25 inside. A third motor 24 is fixed inside the drive chamber 25. A threaded rod is fixedly connected to the output shaft end of the third motor 24. A plug 26 is threadedly connected to the threaded rod. The plug 26 is slidably connected to the closed seat 16. The other end of the plug 26 extends into the second extension hole 17. Several through holes are opened on the wire rope 63. A steel ring 51 is fixed in the through holes.

[0057] With the above structure, under normal conditions, the insert post 26 is retracted into the drive cavity 25, and the outer end of the insert post 26 is flush with the side wall of the second extension hole 17. After the wire rope 63 is wound up, the third motor 24 can be turned on. The third motor 24 drives the threaded rod to rotate, thereby moving the insert post 26 towards the second extension hole 17, so that the insert post 26 is inserted into the extension hole of the steel ring 51. This structure can use the cooperation of the insert post 26 and the steel ring 51 to support the wire rope 63, share part of the weight of the gate with the winding drum 6, and protect the winding drum 6. At the same time, when the winding drum 6 malfunctions, the insert post 26 can also support the gate for a short time to prevent the winding drum 6 from reversing and causing the gate to fall when opening, thus improving the safety of operation.

[0058] Support cylinders 27 are fixed on both the upper and lower sides of the insertion post 26. A limiting block 29 is slidably connected inside the supporting cylinder 27. A first spring 28 is fixed between the limiting block 29 and the supporting cylinder 27. A connecting rod 30 is fixed on the limiting block 29. A wiping component is fixed at the other end of the connecting rod 30.

[0059] With the above structure, during use, the wiping component is in contact with the wire rope 63. When the wire rope 63 is wound up and moving, the wiping component wipes and cleans the surface of the wire rope 63, making the surface of the wire rope 63 clean and dry, preventing debris and moisture on the wire rope 63 from entering the housing 2. At the same time, when the insert 26 is inserted into the steel ring 51, it compresses the first spring 28, so that the wiping component can be in close contact with the wire rope 63. Thus, when the wire rope 63 is not wound up, the cooperation between the wiping component and the second protruding hole 17 ensures the sealing of the moving seat.

[0060] The wiping assembly includes a connecting seat 32, which is fixedly connected to a connecting rod 30. A support shaft is fixed on the connecting rod 30. A first arc-shaped plate 31 and a connecting ear 35 are rotatably connected to the support shaft. A second arc-shaped plate 33 is fixed on the connecting ear 35. A torsion spring 36 is fixed between the connecting ear 35 and the second arc-shaped plate 33. Wiping cotton 34 is fixed on the inner circumference of the first arc-shaped plate 31 and the second arc-shaped plate 33.

[0061] With the above structure, during operation, the wiping cotton 34 contacts the steel wire rope 63. When the steel wire rope 63 is wound up, the elastic force of the first spring 28 is small, allowing the wiping cotton 34 to wipe the steel wire rope 63. When fixed, the elastic force of the first spring 28 is large, allowing the wiping cotton 34 to be squeezed, thus improving the sealing of the wiping cotton 34. The torsion spring 36 allows the portions of the first arc plate 31 and the second arc plate 33 away from the connecting seat 32 to be in close contact with the steel wire rope 63, improving the stability of the device during operation.

[0062] Two cleaning seats 5 are slidably connected in the first opening 12 through the limiting groove 13. A third extension hole is provided in the center of the cleaning seat 5. A bracket is fixed symmetrically on the lower end of the cleaning seat 5. A third guide wheel 62 is rotatably connected on the bracket. The wire rope 63 passes through the third extension hole and is located between the two third guide wheels 62. A cleaning component is provided inside the cleaning seat 5.

[0063] With the above structure, during operation, the position of the wire rope 63 can be limited by the two third guide wheels 62, thereby preventing the wire rope 63 from contacting the lower end of the cleaning seat 5 and protecting the wire rope 63. Furthermore, the portion of the wire rope 63 from the second guide wheel 61 to the third guide wheel 62 is in a vertical state, which distributes the oblique tension of the wire rope 63, reduces local pressure, and improves the stability of the device. When the wire rope 63 is wound up, the cleaning component can be used to clean the debris on the wire rope 63, ensuring the cleanliness of the wire rope 63.

[0064] The cleaning assembly includes an annular seat 44, which is rotatably connected to the upper part of the cleaning seat 5. A driven gear ring is fixed to the outer periphery of the annular seat 44. A fourth motor 49 is fixed inside the cleaning seat 5. A drive gear 50 is fixed to the output shaft end of the fourth motor 49. The drive gear 50 meshes with the driven gear ring. A mounting frame 45 is fixed to the lower side of the annular seat 44. A belt roller 46 is rotatably connected to the mounting frame 45. A fifth motor that drives the belt roller 46 is fixed to the mounting frame 45. A conveyor belt 47 is provided on the belt roller 46 on the same mounting frame 45. A cleaning brush 48 is provided on the outer side of the conveyor belt 47.

[0065] With the above structure, during use, the wire rope 63 is located between the two mounting brackets 45. When the wire rope 63 is wound up, the fourth motor 49 and the fifth motor are turned on. The fourth motor 49 drives the cleaning brush 48 to rotate around the wire rope 63, while the fifth motor drives the cleaning brush 48 to brush up and down on the surface of the wire rope 63. This not only cleans more thoroughly, but also has a good cleaning effect.

[0066] The cleaning brush 48 includes a cylinder 52, which is connected to a conveyor belt 47. A sliding plate 55 is slidably connected inside the cylinder 52. A sliding column 53 is fixed on the sliding plate 55. The other end of the sliding column 53 extends out of the cylinder 52 and is fixed with bristles 54. Ventilation holes 56 are provided on the sliding column 53 and the sliding plate 55. A second spring 59 is fixed between the sliding plate 55 and the cylinder 52. A metal block 58 is fixed on the sliding plate 55. An electromagnet 57 is fixed on the cylinder 52. Several heaters 60 are fixed inside the cylinder 52.

[0067] With the above structure, when cleaning the wire rope 63, the heater 60 can be turned on and the electromagnet 57 can be turned on intermittently. By controlling the on and off of the electromagnet 57 in conjunction with the second spring 59, the bristles 54 vibrate on the wire rope 63, improving the cleaning effect of the bristles 54 on the wire rope 63. At the same time, when the sliding plate 55 moves back and forth, the heated air inside the cylinder 52 can be sprayed out from the vent 56, thereby drying the wire rope 63. The cleaning effect is good, the structure is compact, and the cost of the equipment is reduced.

[0068] The working principle of this invention: One end of the wire rope 63 is fixed to the winding drum 6. The other end of the wire rope 63 is wound around the first guide wheel 43 and the second guide wheel 61, and then passes through the first extension hole, the second extension hole 17 and the third extension hole in sequence, thus extending out from the lower end of the base 1 and connecting with the gate. When the gate is closed, the wire rope 63 is located at both ends of the winding drum 6, at which time the distance between the two guide wheels is the farthest. When the gate is open, the drive mechanism drives the winding drum 6 and the double-headed screw 10 to rotate. The winding drum 6 winds up the wire rope 63, and the double-headed screw 10 drives the two guide seats 11 to move closer to each other. While the winding drum 6 winds up the wire rope 63, the guide seats 11 drive the wire rope 63 to move laterally, so that the winding of the wire rope 63 is aligned with the spiral winding groove 7. The positions of the guide wheel and the spiral winding groove 7 are always aligned. Simultaneously, the second motor 4 drives the drive gear 41 to rotate, which in turn drives the turntable 37 to rotate via the ring gear 39. The turntable 37 then drives the guide wheel to rotate around the first extension hole, ensuring that the position of the guide wheel corresponds to the position of the spiral winding groove 7. This keeps the wire rope 63 vertical between the spiral winding groove 7 and the guide wheel, preventing the wire rope 63 from shifting from the spiral winding groove 7 under the weight of the gate. This ensures operational stability and improves the safety of gate opening. The sealing plate 14 and the sealing seat 16, in cooperation, keep the winding drum 6 in a sealed environment, preventing moisture from the river water from entering the casing through the first opening 12. Within the casing 2, the interior is kept dry, thus reducing corrosion of internal components, extending the lifespan of the device, reducing malfunctions, and improving safety. When the wire rope 63 is being wound or unwound, the electromagnetic generator 19 is turned off. In the absence of an external magnetic field, the magnetorheological fluid exhibits low-viscosity Newtonian fluid characteristics, allowing the magnetorheological fluid to flow between the first sealing chamber 18 and the second sealing chamber 23 as the sealing seat 16 moves left and right with the wire rope 63, ensuring smooth movement of the sealing seat 16. After the wire rope 63 stops being wound or unwound, the electromagnetic generator 19 is turned on. Under the influence of a magnetic field, the magnetorheological fluid becomes a high-viscosity, low-flow Bingham fluid, making it difficult to flow and fixing the position of the sealing seat 16, thereby ensuring the sealing plate 1... 4. While ensuring a tight seal, the sealing seat 16 can be used to limit and support the lateral position of the wire rope 63. Under normal conditions, the insert 26 is retracted into the drive cavity 25, and the outer end of the insert 26 is flush with the side wall of the second extension hole 17. After the wire rope 63 is wound up, the third motor 24 can be turned on. The third motor 24 drives the threaded rod to rotate, thereby moving the insert 26 towards the second extension hole 17, so that the insert 26 is inserted into the extension hole of the steel ring 51. The cooperation between the insert 26 and the steel ring 51 can be used to support the wire rope 63. During the winding process of the wire rope 63, the wiping component is in contact with the wire rope 63. When the wire rope 63 moves during winding, the wiping component wipes and cleans the surface of the wire rope 63, making the surface of the wire rope 63 clean and dry.To prevent debris and moisture from entering the housing 2 of the wire rope 63, and to ensure the wiping assembly is in close contact with the wire rope 63 when the insert pin 26 is inserted into the steel ring 51, the first spring 28 is compressed. This allows the wiping assembly to maintain a tight seal with the wire rope 63 when the wire rope 63 is not being wound up. The wiping assembly, in conjunction with the second extension hole 17, ensures the sealing of the moving seat. Meanwhile, the wire rope 63 is located between the two mounting brackets 45. When the wire rope 63 is being wound up, the fourth motor 49 and the fifth motor are activated. The fourth motor 49 drives the cleaning brush 48 to rotate around the wire rope 63, while the fifth motor... The machine drives the cleaning brush 48 to brush up and down on the surface of the wire rope 63. While cleaning the wire rope 63, the heater 60 can be turned on and the electromagnet 57 can be turned on intermittently. By controlling the on and off of the electromagnet 57 in conjunction with the second spring 59, the brush bristles 54 vibrate on the wire rope 63, improving the cleaning effect of the brush bristles 54 on the wire rope 63. Simultaneously, as the sliding plate 55 reciprocates, heated air inside the cylinder 52 is ejected from the vent 56, thereby drying the wire rope 63. This results in a more thorough and effective cleaning.

[0069] In summary, by setting up components such as guide seat 11, guide wheel, and sealing plate 14, the winding mechanism is sealed to ensure its internal dryness and reduce the risk of the wire rope 63 slipping on the winding drum 6, thereby improving safety.

[0070] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A closed hoist type hoist machine comprising a base (1), characterized in that, The base (1) is bolted with the casing (2), the base (1) is provided with a first opening (12), the inside of the casing (2) is rotatably connected with a winding drum (6), the winding drum (6) is provided with two winding parts symmetrically, each winding part is provided with a spiral winding groove (7), the spiral winding groove (7) is wound with a steel wire rope (63), the inside of the casing (2) is rotatably connected with a bidirectional screw rod (10), the bidirectional screw rod (10) is threadedly connected with a guide seat (11), the guide seat (11) is provided with a first extension hole in the middle, the upper end of the guide seat (11) is rotatably connected with a rotating disc (37), the lower side of the rotating disc (37) is fixed with an annular mounting seat (38) slidably connected with the guide seat (11), the inside of the guide seat (11) is fixed with a first motor (40), the output shaft of the first motor (40) is fixed with a driving gear (41), the lower side of the annular mounting seat (38) is fixed with an annular gear ring (39), the driving gear (41) is engaged with the annular gear ring (39), the upper side of the rotating disc (37) is fixed with a wheel frame (42), the wheel frame (42) is rotatably connected with a first guide wheel (43) and a second guide wheel (61), the casing (2) is provided with a driving mechanism, the bidirectional screw rod (10) and the winding drum (6) are connected with the driving mechanism.

2. A closed hoist type hoist machine according to claim 1, characterized in that, The driving mechanism comprises a second motor (4), the second motor (4) is fixed on the right end of the casing (2), the output shaft of the second motor (4) is fixedly connected with the winding drum (6), the left end of the casing (2) is bolted with a closed box (3), the left end of the winding drum (6) is fixed with a rotating shaft extending into the closed box (3), the rotating shaft is fixed with a first transmission gear (8), the left end of the bidirectional screw rod (10) extends into the closed box (3) and is fixed with a second transmission gear (9), the first transmission gear (8) and the second transmission gear (9) are engaged.

3. A closed hoist type hoist machine according to claim 1, characterized in that, The inside of the casing (2) is fixed with a closing plate (14) at the lower end, the closing plate (14) is provided with two second openings (15), the second openings (15) are slidably connected with a closing seat (16), the closing seat (16) is provided with a second extension hole (17), the left and right ends of the second opening (15) are respectively fixed with a first closing bag (18) and a second closing bag (23), the first closing bag (18) and the second closing bag (23) are filled with magnetorheological fluid, the first closing bag (18) and the second closing bag (23) are fixed with an electromagnetic generator (19), the first closing bag (18) and the second closing bag (23) are communicated through a flow pipeline (22).

4. A closed hoist type hoist machine according to claim 3, characterized in that, The front and back sides of the second opening (15) are provided with a sliding groove (20), the front and back sides of the first closing bag (18) and the second closing bag (23) are fixed with a sliding block (21), the sliding groove (20) is slidably connected with the sliding block (21), the thickness of the first closing bag (18) and the second closing bag (23) is greater than the longitudinal width of the sliding groove (20).

5. A closed hoist type hoist machine according to claim 4, characterized in that, The inside of the closed seat (16) is left-right symmetrical and is provided with a driving cavity (25), the inside of the driving cavity (25) is fixedly provided with a third motor (24), the output shaft end of the third motor (24) is fixedly connected with a threaded rod, a plurality of threaded holes are formed in the steel wire rope (63), and a plurality of steel rings (51) are fixedly arranged in the threaded holes.

6. A closed hoist type hoist machine according to claim 5, characterized in that, The upper side and the lower side of the plug post (26) are fixedly provided with supporting barrels (27), the inside of the supporting barrel (27) is slidably connected with a limiting block (29), the first spring (28) is fixed between the limiting block (29) and the supporting barrel (27), the limiting block (29) is fixedly provided with a connecting rod (30), and the other end of the connecting rod (30) is fixedly provided with a wiping assembly.

7. A closed hoist type hoist machine according to claim 6, characterized in that, The wiping assembly comprises a connecting seat (32), the connecting seat (32) is fixedly connected with the connecting rod (30), the connecting rod (30) is fixedly provided with a supporting shaft, the supporting shaft is rotatably connected with a first arc-shaped plate (31) and a connecting lug (35), the connecting lug (35) is fixedly provided with a second arc-shaped plate (33), the connecting lug (35) and the second arc-shaped plate (33) are fixedly provided with a torsional spring (36), and the inner circumferences of the first arc-shaped plate (31) and the second arc-shaped plate (33) are fixedly provided with wiping cotton (34).

8. The closed hoist type hoist machine according to claim 1, characterized by, The first opening (12) is slidably connected with two cleaning seats (5) through limiting grooves (13), the center of the cleaning seat (5) is provided with a third extension hole, the lower end of the cleaning seat (5) is fixedly provided with a support in a left-right symmetrical mode, the support is rotatably connected with a third guide wheel (62), the steel wire rope (63) is located between the two third guide wheels (62) after passing through the third extension hole, and the inside of the cleaning seat (5) is provided with a cleaning assembly.

9. A closed hoist type hoist machine according to claim 8, characterized in that, The cleaning assembly comprises an annular seat (44), the inside of the cleaning seat (5) is rotatably connected with the annular seat (44), the outer periphery of the annular seat (44) is fixedly provided with a driven gear ring, the inside of the cleaning seat (5) is fixedly provided with a fourth motor (49), the output shaft end of the fourth motor (49) is fixedly provided with a driving gear (50), the driving gear (50) is meshed with the driven gear ring, the lower side of the annular seat (44) is fixedly provided with a mounting rack (45), the mounting rack (45) is rotatably connected with a belt roller (46), the mounting rack (45) is fixedly provided with a fifth motor for driving the belt roller (46), the belt roller (46) on the same mounting rack (45) is provided with a conveying belt (47), and the outer side of the conveying belt (47) is provided with a cleaning brush (48).

10. A closed hoist type hoist machine according to claim 9, characterized in that, The cleaning brush (48) comprises a cylinder (52) connected with the conveying belt (47), a sliding plate (55) slidably connected inside the cylinder (52), a sliding column (53) fixed on the sliding plate (55), the other end of the sliding column (53) extending out of the cylinder (52) and fixed with a brush (54), air holes (56) being formed on the sliding column (53) and the sliding plate (55), a second spring (59) being fixed between the sliding plate (55) and the cylinder (52), a metal block (58) being fixed on the sliding plate (55), an electromagnet (57) being fixed on the cylinder (52), and a plurality of heaters (60) being fixed inside the cylinder (52).

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