Safe hoisting equipment for mechanical part maintenance
By controlling the hoisting equipment with servo motors and worm gear reducers, the vertical and horizontal angles of mechanical parts can be adjusted, solving the compatibility and safety issues of existing equipment and improving the stability and safety of the hoisting process.
Patent Information
- Application Number
- CN202610050462.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-15
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2046-01-15
AI Technical Summary
Existing hoisting equipment is difficult to adjust the vertical and horizontal angles of mechanical parts as needed, has poor adaptability, and is prone to wear and tear of hoisting cables and failure to support parts in time when steel cables break during hoisting.
The rotation and retraction of the hoisting equipment are controlled by a servo motor and a worm gear reducer. The vertical and horizontal angles of the mechanical parts are adjusted by the cooperation of the gear ring and the traction cable, and support is provided in case of cable breakage.
It improves the adaptability to parts of different shapes and sizes, reduces wear on lifting cables, enhances the safety and stability of the lifting process, and ensures accurate docking and assembly of parts at different angles.
Smart Images

Figure CN121516732A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of mechanical hoisting technology, and particularly relates to a safe hoisting equipment for mechanical part maintenance. BACKGROUND
[0002] When large mechanical equipment is maintained, a crane needs to be used to hoist the parts of the mechanical equipment, so that the bottom of the mechanical equipment part can be maintained. The equipment part must be hoisted stably. Therefore, the hoisting of the equipment must be coordinated by a hoisting worker. Due to the difference of the mechanical equipment, the tilt angles of the butt joint surfaces of the parts during installation are different. The angle of the hoisted part needs to be adjusted according to the difference of the parts during hoisting, maintenance and assembly.
[0003] When heavy equipment parts are hoisted, the hoisting cable needs to be kept vertical. When the hoisting cable rubs against the edge of the outer surface of the mechanical part, the sharp edge of the mechanical part is easy to cause abrasion of the hoisting cable. The existing equipment is not convenient to adjust the tilt angle of the vertical and horizontal planes of the mechanical part according to the need. The adaptability of the existing hoisting equipment to parts of different shapes and different sizes is poor. The existing equipment is not convenient to support the falling part in time after the steel cable is broken. SUMMARY
[0004] Therefore, the present application provides a safe hoisting equipment for mechanical part maintenance. The servo motor and the worm and gear reducer at the corresponding positions are controlled to drive the linkage gear at the bottom of the reducer to rotate horizontally, drive the corresponding gear ring to rotate horizontally, drive the rotating seat inside the gear ring to drive the worm and gear reducer three to rotate horizontally. After the butt joint disc at the bottom of the traction cable is fastened with the edge of the mechanical part, the worm and gear reducer three is controlled to drive the traction cable to be retracted and released. The traction cable at each angle outside the mechanical part is controlled to be retracted and released. The vertical tilt angle of the mechanical part can be adjusted according to the need.
[0005] The present application provides a safe hoisting equipment for mechanical part maintenance, which specifically comprises a base frame, a sliding groove is formed in the inner side vertical surface of the base frame, a sliding table is slidingly connected to the inner side of the base frame, a through hole is vertically penetrated in the sliding table, an LED lamp is fixedly connected to the inner side of the through hole, a side rack is fixedly connected to the top left side of the sliding table, a stand is fixedly connected to the top of the base frame, a worm and gear reducer one is fixedly connected to the top left side of the base frame, a servo motor is installed on the top of the worm and gear reducer one, a gear is coaxially connected to the bottom of the output shaft of the worm and gear reducer one, the gear is in meshing transmission with the side rack, an operation table is fixedly connected to the outer side of the stand, a rotating variable resistance hand wheel is rotatably connected to the outer side of the operation table, a cross stand is fixedly connected to the top of the stand, an inner frame is fixedly connected to the bottom of the cross stand, an electric hoist is fixedly connected to the bottom surface of the cross stand, the number of the electric hoists is four, two groups of square stands are fixedly connected to the inner side of the inner frame, and a cross plate is fixedly connected to the inner side of the square stand.
[0006] Optionally, the electric hoist bottom is wound with a lifting cable, the stand outer side is fixedly connected with a support seat, and the support seat top is fixedly connected with the inner frame bottom.
[0007] Optionally, the square frame top surface is fixedly connected with a lower rail, the square frame bottom surface is fixedly connected with an upper rail, and the lower rail top and the upper rail bottom are respectively slidably connected with mutually perpendicular and intersecting through slot frames.
[0008] Optionally, inner left and right sides of the through slot frame are provided with inner sliding grooves, and vertical square seat pipes are arranged in every two groups of mutually intersecting through slot frames.
[0009] Optionally, the square seat pipe upper and lower ends are fixedly connected with clamping plates, the clamping plate sides are fixedly connected with side sliding columns, and the side sliding columns are slidably connected with the inner sliding grooves.
[0010] Optionally, the square seat pipe upper and lower ends are fixedly connected with horn pipes I, and the lifting cable is arranged in the square seat pipe inner side.
[0011] Optionally, the support seat top is fixedly installed with a worm gear reducer II, the worm gear reducer II outer side is fixedly connected with a servo motor, and the worm gear reducer II bottom output shaft outer side is fixedly connected with a linkage gear.
[0012] Optionally, the support seat top is fixedly connected with four groups of vertically arranged ring frames, the ring frame inner side is slidably connected with a gear ring, the gear ring outer curved side is fixedly connected with a gear part, the ring frame outer curved side is provided with a through hole, and the linkage gear and the gear ring outer curved side gear part are in mesh transmission.
[0013] Optionally, the gear ring inner curved side is fixedly connected with a rotating seat, the rotating seat top is fixedly connected with a worm gear reducer III for installing a servo motor, the rotating seat top is fixedly connected with a horn pipe II, the worm gear reducer III output shaft is fixedly connected with a roller shaft, the roller shaft outer side is wound with a traction cable, and the traction cable is arranged in the horn pipe II inner side.
[0014] Optionally, the lifting cable and the traction cable bottom are fixedly connected with a butt joint disc I, the butt joint disc I inner side is threadedly connected with a screw rod of a fastening bolt, the screw rod left end is fixedly connected with a butt joint disc II, and the butt joint disc II left side is fixedly connected with a rotating head.
[0015] The application provides a safe hoisting equipment for mechanical part maintenance, and has the following beneficial effects: 1. According to the hoisting equipment structure of each embodiment of the application, the user can drive four groups of electric hoists at the stand top to serve by rotating the adjusting hand wheel of the operation table, can control the electric hoist to vertically wind and release the lifting cable, and can vertically hoist the large mechanical part by the lifting cable.
[0016] 2、By setting the through slot frame, by rotating the corresponding hand wheel, can make it drive the electric telescopic rod at the square frame to servo operation, can make the electric telescopic rod drive the vertical cross through slot frame to move horizontally, can make the square seat tube inside the intersection of the through slot frame move horizontally, can make the square seat tube translate to the riveting hole of the mechanical part according to the shape of the part, can stably lift the mechanical part outside, can improve the adaptability of different shapes and different sizes of parts.
[0017] 3, the mechanical part is translated into the inside of the stand, after the mechanical part is lifted up, the user can turn on the LED lamp inside the sliding table, can light up the bottom of the mechanical part, the user can stand on the sliding table to observe and maintain the bottom of the mechanical part, after the lower part of the mechanical equipment is moved to the inside of the stand through the sliding table, the part can be connected by lowering, which is convenient for assembling the mechanical equipment with different angle connecting surfaces.
[0018] 4、The user rotates the hand wheel of the operation table outside the stand to control the operation of the servo motor and the worm and gear reducer at the corresponding position, can make the linkage gear at the bottom of the reducer drive the corresponding gear ring to rotate horizontally, can make the rotating seat inside the gear ring drive the corresponding worm and gear reducer three to rotate horizontally, after the connecting disc at the bottom of the traction cable is fastened with the edge of the mechanical part, the operation of the worm and gear reducer three is controlled to drive the traction cable to be retracted, the traction cable at each angle outside the mechanical part is controlled to be retracted, the vertical inclination angle of the mechanical part can be adjusted as needed.
[0019] 5、Through the cooperation of the traction cable and the lifting cable, the safety during lifting can be improved, when a single group of steel cables breaks, the maintenance personnel can timely evacuate the scene.
[0020] 6、By setting the gear ring, the operation of the worm and gear reducer two is controlled by rotating the hand wheel, which can drive the gear ring to rotate horizontally, and the angle of the traction cable in the horizontal plane can be adjusted, so that the mechanical part can be deflected horizontally.
[0021] 7、The user can observe the tension of each group of steel cables through the tension sensor data at the operation table, which is convenient for adjusting the angle of the mechanical part by retracting the steel cable according to the center of gravity of the mechanical part, after the mechanical part is lifted up, the user can turn down the support, when the steel cable breaks, the support can support the falling mechanical part, which can improve the safety during lifting and maintenance. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.
[0023] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.
[0024] In the attached diagram: Figure 1 This is a three-dimensional structural diagram of the hoisting equipment as described in Embodiment 1 of the present invention, taken from the left side.
[0025] Figure 2 This is a bottom-view three-dimensional structural diagram of the hoisting equipment according to Embodiment 1 of the present invention.
[0026] Figure 3 yes Figure 2 A magnified view of part A in the diagram.
[0027] Figure 4 This is a three-dimensional disassembly diagram of the inner frame of the hoisting equipment according to Embodiment 1 of the present invention.
[0028] Figure 5 yes Figure 4 A magnified view of part B in the diagram.
[0029] Figure 6 This is a three-dimensional structural diagram of the square seat tube of the hoisting equipment according to Embodiment 1 of the present invention.
[0030] Figure 7 This is a three-dimensional side sectional view of the frame of the hoisting equipment according to Embodiment 1 of the present invention.
[0031] Figure 8 This is a three-dimensional structural diagram of the hoisting equipment ring frame according to Embodiment 1 of the present invention.
[0032] Figure 9 This is a three-dimensional structural diagram of the cross-shaped hoisting device according to Embodiment 1 of the present invention.
[0033] Figure 10 yes Figure 9 A magnified view of part C in the diagram.
[0034] List of reference numerals 1. Base frame; 2. Slide table; 201. Through hole; 202. LED light; 203. Side rack; 3. Worm gear reducer; 4. Vertical frame; 401. Operating table; 402. Cross plate; 4021. Inner frame; 4022. Electric hoist; 403. Square frame; 404. Cross plate; 405. Lifting cable; 406. Support base; 5. Lower rail; 501. Upper rail; 502. Through groove frame; 5021. Inner slide groove; 503. Electric telescopic pole; 6. Square seat tube; 601. Clamping plate; 602. Side sliding column; 603. Horn tube one; 7. Worm gear reducer two; 701. Linkage gear; 702. Ring frame; 703. Gear ring; 704. Rotary seat; 705. Worm gear reducer three; 706. Horn tube two; 707. Traction cable; 8. Connecting plate one; 801. Connecting plate two; 802. Rotating head; 803. Fastening bolt. Detailed Implementation
[0035] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.
[0036] Example 1: Please refer to Figures 1 to 10 As shown: This invention provides a safe hoisting device for repairing mechanical parts, including a base frame 1. A sliding groove is provided on the inner side of the base frame 1. A slide table 2 is slidably connected to the inner side of the base frame 1. A through hole 201 is vertically penetrating the inside of the slide table 2. An LED light 202 is fixedly connected to the inside of the through hole 201. A side rack 203 is fixedly connected to the top left side of the slide table 2. A worm gear reducer 3 is fixedly connected to the top left side of the base frame 1. A vertical frame 4 is fixedly connected to the top of the base frame 1. A servo motor is mounted on the top of the worm gear reducer 3. A gear is coaxially connected to the bottom of the output shaft of the worm gear reducer 3, and the gear meshes with the side rack 203 for transmission. An operating platform 401 is fixedly connected to the outer side of the vertical frame 4. A rotary variable resistance handwheel is rotatably connected to the outer side of the operating platform 401. A cross 402 is fixedly connected to the top of the vertical frame 4. 2. An inner frame 4021 is fixedly connected to the bottom. An electric hoist 4022 is fixedly connected to the bottom of the cross 402. The number of electric hoists 4022 is set to four. Two sets of square frames 403 are fixedly connected to the inner side of the inner frame 4021. A cross plate 404 is fixedly connected to the inner side of the square frame 403. After the large mechanical parts are moved to the top of the slide table 2, the worm gear reducer 3 is controlled by the operating table 401 to drive the gear on its output shaft to drive the side rack 203 to move horizontally. This can drive the slide table 2 to move horizontally inside the base frame 1. The mechanical parts can be moved horizontally into the inside of the upright frame 4. After the mechanical parts are lifted upward, the user can turn on the LED light 202 inside the slide table 2 to illuminate the bottom of the mechanical parts. The user can stand on the slide table 2 to observe and repair the bottom of the mechanical parts.
[0037] like Figures 2 to 6As shown, the electric hoist 4022 has a lifting cable 405 wound around its bottom. A support base 406 is fixedly connected to the outside of the upright frame 4. The top of the support base 406 is fixedly connected to the bottom of the inner frame 4021. A lower rail 5 is fixedly connected to the top surface of the square frame 403, and an upper rail 501 is fixedly connected to the bottom surface of the square frame 403. The top of the lower rail 5 and the bottom surface of the upper rail 501 are respectively slidably connected to mutually perpendicular intersecting through-slot frames 502. Inner sliding grooves 5021 are opened on the left and right sides inside the through-slot frames 502. Vertical square seat tubes 6 pass through the inner sides of every two sets of intersecting through-slot frames 502. A clamping plate 601 is fixedly connected to the upper and lower ends of the square seat tube 6. Side sliding columns 602 are fixedly connected to both sides of the clamping plate 601, and the side sliding columns 602 are slidably connected to the inner sliding grooves 5021. A trumpet tube 603 is fixedly connected to the upper and lower ends of the square seat tube 6. The lifting cable 405 passes through... Inside the square base tube 6, the user can rotate the adjusting handwheel of the operating table 401 to drive the four sets of electric hoists 4022 on the top of the upright frame 4 to perform servo operation. This allows the user to control the electric hoists 4022 to vertically raise and lower the hoisting cable 405. By rotating the corresponding handwheel, the user can drive the electric telescopic rod 503 at the square frame 403 to perform servo operation. This allows the electric telescopic rod 503 to drive the vertically intersecting through-slot frame 502 to move horizontally. This allows the square base tube 6 inside the intersection of the through-slot frame 502 to move horizontally. Depending on the shape of the part, the square base tube 6 can be moved to the riveting hole of the mechanical part, which can improve the adaptability to parts of different shapes and sizes. The user can also directly install the electric hoist 4022 on the top of the square base tube 6 and directly adjust the position of the electric hoist 4022.
[0038] like Figures 3 to 10As shown, a worm gear reducer 2 7 is fixedly mounted on the top of the support base 406. A servo motor is fixedly connected to the outside of the worm gear reducer 2 7. A linkage gear 701 is fixedly connected to the outside of the output shaft at the bottom of the worm gear reducer 2 7. Four sets of vertically arranged ring frames 702 are fixedly connected to the top of the support base 406. A gear ring 703 is slidably connected to the inside of the ring frame 702. Teeth are fixedly connected to the outer curved side of the gear ring 703. A through hole is opened on the outer curved side of the ring frame 702. The linkage gear 701 meshes with the teeth on the outer curved side of the gear ring 703 for transmission. A rotating seat 704 is fixedly connected to the inner curved side of the gear ring 703. A worm gear reducer 3 705 with a servo motor is fixedly connected to the top of the rotating seat 704. A horn tube 2 706 is fixedly connected to the top of the rotating seat 704. A roller is fixedly connected to the output shaft of the worm gear reducer 3 705. A traction cable 707 is wound around the outside of the roller. The traction cable 707 passes through the horn tube 2. Inside 706, the user can control the operation of the servo motor and worm gear reducer 7 at the corresponding position by rotating the corresponding handwheel on the operating table 401 outside the frame 4. This allows the linkage gear 701 at the bottom of the reducer to drive the corresponding gear ring 703 to rotate horizontally, and the rotating seat 704 inside the gear ring 703 to drive the corresponding worm gear reducer 705 to rotate horizontally. After fastening the docking plate at the bottom of the traction cable 707 to the edge of the mechanical part, the worm gear reducer 705 can be controlled to drive the traction cable 707 to be wound up and down. By controlling the winding and unwinding of the traction cable 707 at various angles outside the mechanical part, the vertical tilt angle of the mechanical part can be adjusted. By rotating the handwheel to control the operation of the worm gear reducer 7, the gear ring 703 can be driven to rotate horizontally, allowing the angle of the traction cable 707 on the horizontal plane to be adjusted, thereby driving the mechanical part to deflect horizontally.
[0039] like Figures 4 to 10 As shown, the bottom of the hoisting cable 405 and the traction cable 707 is fixedly connected to a docking plate 1 8. The screw of the fastening bolt 803 is threadedly connected to the inner side of the docking plate 1 8. The left end of the screw of the fastening bolt 803 is fixedly connected to a docking plate 2 801. The left side of the docking plate 2 801 is fixedly connected to a rotating head 802. After docking plate 1 8 is aligned with the rivet hole of the equipment part, docking plate 2 801 can be inserted from the other side and then fastened by the fastening bolt 803 to fix docking plate 2 801 and docking plate 1 8, thus fixing the mechanical equipment part.
[0040] Example 2: Based on Example 1, tension sensors are installed inside the lifting cable 405 and the traction cable 707. A bracket is vertically rotatably connected to the inner side of the support frame 4, and a locking block is fixedly connected to the inner side of the support frame 4. The locking block is located at the bottom of the bracket for limiting the deflection angle of the bracket. The user can observe the tension of each group of steel cables through the tension sensor data at the operating table 401, which is convenient for adjusting the angle of the mechanical parts by raising and lowering the steel cables according to the center of gravity of the mechanical parts. After the mechanical parts are lifted upward, the user can flip the bracket downward. When the steel cable breaks, the bracket can support the falling mechanical parts, which can improve the safety during hoisting and maintenance.
[0041] The specific usage and function of this embodiment are as follows: In use, first, the large mechanical parts are moved to the top of the slide table 2. Then, the worm gear reducer 3 is controlled by the operating panel 401 to rotate, causing the output shaft gear to drive the side rack 203 to move horizontally. This moves the slide table 2 horizontally within the base frame 1, moving the mechanical parts into the inner side of the upright frame 4. After aligning the first docking plate 8 with the rivet holes of the equipment parts, the second docking plate 801 is inserted from the other side and then tightened by the fastening bolts 803, thus securing the mechanical parts. The components are fixed in place. The user rotates the adjusting handwheel of the operating table 401 to drive the four sets of electric hoists 4022 on the top of the upright frame 4 to operate as servo motors, controlling the electric hoists 4022 to vertically raise and lower the hoisting cable 405. The LED lights 202 inside the slide table 2 are turned on to illuminate the bottom of the mechanical parts. By rotating the corresponding handwheel, the electric telescopic rod 503 at the square frame 403 is driven to operate as a servo motor, causing the electric telescopic rod 503 to drive the vertically intersecting through-slot frames 502 to move horizontally, so that the intersection of the through-slot frames 502... The square base tube 6 of the part moves horizontally, and according to the shape of the part, the square base tube 6 is moved to the riveting hole of the mechanical part, improving the adaptability to parts of different shapes and sizes. The user controls the operation of the servo motor and worm gear reducer 7 at the corresponding position by rotating the corresponding handwheel of the operating table 401 on the outside of the stand 4. This causes the linkage gear 701 at the bottom of the reducer to drive the corresponding gear ring 703 to rotate horizontally, and causes the rotating seat 704 on the inner side of the gear ring 703 to drive the corresponding worm gear reducer 705 to rotate horizontally, thus moving the traction cable. After the bottom mating plate of 707 is fastened to the edge of the mechanical part, the worm gear reducer 705 is controlled to drive the traction cable 707 to retract and extend. By controlling the retraction and extension of the traction cable 707 at various angles on the outside of the mechanical part, the vertical tilt angle of the mechanical part is adjusted. By rotating the handwheel, the worm gear reducer 703 is controlled to drive the gear ring 703 to rotate horizontally, so that the angle of the traction cable 707 on the horizontal plane is adjusted, thereby pulling the mechanical part to deflect horizontally, so as to adjust the horizontal and vertical tilt angle of the large mechanical part.
Claims
1. A safe hoisting device for repairing mechanical parts, comprising: The base frame (1) is characterized in that a sliding groove is provided on the inner side of the base frame (1); a slide table (2) is slidably connected to the inner side of the base frame (1), a through hole (201) is vertically penetrating the inside of the slide table (2), an LED light (202) is fixedly connected to the inside of the through hole (201), and a side rack (203) is fixedly connected to the top left side of the slide table (2); a worm gear reducer (3) is fixedly connected to the top left side of the base frame (1), a servo motor is installed on the top of the worm gear reducer (3), and a gear is coaxially connected to the bottom of the output shaft of the worm gear reducer (3), the gear meshing with the side rack (203) for transmission. The base frame (1) is fixedly connected to the top of the upright frame (4), and the operating table (401) is fixedly connected to the outside of the upright frame (4). A rotating variable resistance handwheel is rotatably connected to the outside of the operating table (401). A cross (402) is fixedly connected to the top of the upright frame (4). An inner frame (4021) is fixedly connected to the bottom of the cross (402). An electric hoist (4022) is fixedly connected to the bottom of the cross (402). The number of electric hoists (4022) is set to four groups. Two sets of square frames (403) are fixedly connected to the inside of the inner frame (4021). A cross plate (404) is fixedly connected to the inside of the square frame (403).
2. The safe hoisting equipment for repairing mechanical parts as described in claim 1, characterized in that: The electric hoist (4022) has a lifting cable (405) wrapped around its bottom, and a support base (406) is fixedly connected to the outside of the upright frame (4). The top of the support base (406) is fixedly connected to the bottom of the inner frame (4021).
3. The safe hoisting equipment for repairing mechanical parts as described in claim 1, characterized in that: The top surface of the square frame (403) is fixedly connected to a lower rail (5), and the bottom surface of the square frame (403) is fixedly connected to an upper rail (501). The top surface of the lower rail (5) and the bottom surface of the upper rail (501) are respectively slidably connected to mutually perpendicular through slot frames (502).
4. The safe hoisting equipment for repairing mechanical parts as described in claim 3, characterized in that: The slotted frame (502) has an inner sliding groove (5021) on the left and right sides inside, and a vertical square seat tube (6) passes through the inner side of each pair of intersecting slotted frames (502).
5. The safe hoisting equipment for repairing mechanical parts as described in claim 4, characterized in that: The square base tube (6) is fixedly connected to the upper and lower ends of the card plate (601), and the card plate (601) is fixedly connected to the sides of the side sliding column (602). The side sliding column (602) is slidably connected to the inner sliding groove (5021).
6. The safe hoisting equipment for repairing mechanical parts as described in claim 4, characterized in that: The square base tube (6) is fixedly connected to the upper and lower ends of the horn tube (603), and the suspension cable (405) is passed through the inside of the square base tube (6).
7. The safe hoisting equipment for repairing mechanical parts as described in claim 2, characterized in that: The support base (406) is fixedly installed with a worm gear reducer (7) on the top. A servo motor is fixedly connected to the outside of the worm gear reducer (7). A linkage gear (701) is fixedly connected to the outside of the output shaft at the bottom of the worm gear reducer (7).
8. The safe hoisting equipment for repairing mechanical parts as described in claim 7, characterized in that: The top of the support base (406) is fixedly connected to four sets of vertically arranged ring frames (702). A toothed ring (703) is slidably connected to the inner side of the ring frame (702). A toothed part is fixedly connected to the outer curved side of the toothed ring (703). A through hole is opened on the outer curved side of the ring frame (702). The linkage gear (701) meshes with the toothed part on the outer curved side of the toothed ring (703) for transmission.
9. The safe hoisting equipment for repairing mechanical parts as described in claim 8, characterized in that: A rotating seat (704) is fixedly connected to the inner curved side of the gear ring (703). A worm gear reducer three (705) with a servo motor is fixedly connected to the top of the rotating seat (704). A horn tube two (706) is fixedly connected to the top of the rotating seat (704). A roller shaft is fixedly connected to the output shaft of the worm gear reducer three (705). A traction cable (707) is wound around the outside of the roller shaft. The traction cable (707) passes through the inside of the horn tube two (706).
10. The safe hoisting equipment for repairing mechanical parts as described in claim 9, characterized in that: The bottom of the hoisting cable (405) and the traction cable (707) is fixedly connected to a docking plate one (8). The inner side of the docking plate one (8) is threaded with the screw of the fastening bolt (803). The left end of the screw of the fastening bolt (803) is fixedly connected to a docking plate two (801). The left side of the docking plate two (801) is fixedly connected to a rotating head (802).
Citation Information
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