Elevator parallel broken line groove lining plate and manufacturing method thereof

Abstract

The application discloses a hoist parallel fold line groove lining plate and a manufacturing method thereof, which comprises a rotating shaft and a sleeve connected to the rotating shaft, characterized in that connecting bearings are arranged at the two ends of the rotating shaft, baffle plates are arranged at the two ends of the sleeve, groove lining plates for winding a steel wire rope are fixedly connected to the outer surface of the sleeve, the outer surface of the groove lining plate comprises straight line groove sections and fold line groove sections, the straight line groove sections and the fold line groove sections are connected end to end between adjacent ones, and the length ratio of the straight line groove sections to the fold line groove sections is 3-4. The hoist parallel fold line groove lining plate solves the problem of the loss of the steel wire rope used by the existing hoist, prolongs the service life of the steel wire rope, and improves the working efficiency of the hoist.

Description

Technical Field

[0001] This application relates to the field of hoisting technology, specifically to a parallel zigzag groove liner for a hoist and its manufacturing method. Background Technology

[0002] As vertical shafts are designed and constructed to greater depths, and hoists become larger, the use of large drums is increasing. A type of grooved rope drum, which allows for neatly arranged wire rope windings, is becoming increasingly widely used. Grooved rope drums were first seen in proprietary Libbas devices from the foreign company Libbas, where the Libbas drum itself is a double-grooved rope drum. Introduced to my country in the 1980s, it is primarily used in mining winches and hydraulic lifting machinery.

[0003] Traditionally, single-rope winding hoists use spiral grooved roller liners. When the hoist involves two or more layers of winding, the following problems arise: Poor interlayer transition of spiral groove roller liners results in uneven interlayer transition of wire ropes, often accompanied by abnormal noises. The interlayer transition is often accompanied by compression, which can damage the lower layer wire ropes due to the upper layer, thus severely shortening the lifespan of the wire ropes.

[0004] When a wire rope is wound in two or more layers, it winds along the groove formed by the lower layer of wire rope, and the spiral direction of the lower groove is opposite to that of the upper wire rope. Therefore, when the wire rope is wound in two or more layers, the transition between loops is uneven, which can easily cause the rope to become tangled and affect safe production.

[0005] This can cause wire rope biting. Wire rope biting often occurs at the second layer and above. There are two main reasons for this: compression at the transition between upper and lower layers; and crossing between layers above the second layer because the upper and lower layers of wire rope have opposite winding directions. Biting occurs when the wire rope crosses this crossing point during winding. Severe biting can cause wire breakage, shorten the wire rope's lifespan, and pose serious safety hazards. Replacing the wire rope increases the project's operating costs.

[0006] The transition point between steel wire rope layers is uncertain, and the transition block of the spiral groove drum liner is difficult to install, often requiring repeated adjustments on site. Summary of the Invention

[0007] In response to the current needs and status of hoists, this application designs a parallel zigzag groove liner for hoists, which solves the problem of wire rope wear in existing hoists, extends the service life of wire ropes, and improves the working efficiency of hoists.

[0008] A parallel zigzag groove liner for a hoist includes a rotating shaft and a sleeve fitted on the rotating shaft, characterized in that connecting bearings are provided at both ends of the rotating shaft; The sleeve is provided with baffles at both ends, and a groove liner plate for winding steel wire rope is fixedly connected to the outer surface of the sleeve. The outer surface of the groove liner includes straight groove segments and broken groove segments. Adjacent straight groove segments and broken groove segments are connected end to end. The length ratio of the straight groove segment to the broken groove segment is 3-4.

[0009] In one possible implementation, the baffle is inclined from the side closer to the pivot to the side farther away from the pivot.

[0010] In one possible implementation, the central angle of the zigzag groove segment wound around the sleeve is 30-60°.

[0011] In one possible implementation, the straight groove segment includes a plurality of parallel straight grooves, which are fan-shaped.

[0012] In one possible implementation, the straight groove is configured as an arc with a central angle of less than 180°.

[0013] In one possible implementation, the zigzag groove segment includes a plurality of parallel zigzag grooves, the number of which is equal to the number of the straight grooves, and the zigzag grooves are also fan-shaped.

[0014] In one possible implementation, the zigzag groove is configured as an arc with a central angle of less than 180°.

[0015] In one possible implementation, the central angle of the segment connecting the zigzag groove and the straight groove is smaller than the central angle of the middle segment of the zigzag groove.

[0016] In one possible implementation, the two baffles have multiple parallel wire-laying grooves on their opposite sides. The wire-laying grooves are irregularly arc-shaped, with the bottom arc radius of the wire-laying groove being larger than the radius of the wire rope used, and the top arc radius of the wire-laying groove being equal to the radius of the wire rope used. The arc sidewalls of the wire-laying grooves tend to change from the arc of the bottom arc to the arc of the top arc.

[0017] In one possible implementation, the difference between the distance between the arcuate circles of adjacent wire-laying grooves and the diameter of the wire rope used is less than 0.75 mm.

[0018] In one possible implementation, a method for preparing a parallel broken groove liner for a hoist includes the following steps: S1. Fit the sleeve onto the rotating shaft and set baffles at both ends of the sleeve; S2. After connecting the straight groove section and the broken groove section of the groove liner end to end, wrap it around the outer surface of the sleeve. The broken groove section is wrapped around the horizontal position of the sleeve, and the central angle of the broken groove section to the sleeve is 30-60°. S3. Attach the wire rope to the sleeve with the grooved liner.

[0019] Compared to existing technologies, the beneficial effects of this application are: The bearing of the parallel zigzag groove liner plate for the hoist provided in this application is rotatably mounted. The wire rope is wound around the groove liner plate on the outer surface of the sleeve, and the winding trajectory of the wire rope is constrained by straight groove sections and zigzag groove sections. The straight groove sections effectively gather the wire rope, and the zigzag groove sections turn the wire rope into adjacent straight groove sections to continue gathering, effectively preventing the wire rope from tangling. Furthermore, the baffles on both sides of the sleeve restrict the wire rope, ensuring that after the wire rope near the inside of the sleeve is wound, a second layer of wire rope is superimposed, thus ensuring that the entire sleeve... All wire ropes can be neatly bundled; the concave shape of the groove liner is adapted to the outer diameter of the wire rope, and the length ratio of the straight groove section to the broken groove section can be adjusted to effectively adapt to different wire rope splices, ensuring that when the wire rope is wound in multiple layers, both the straight groove section and the broken groove section can be fully spliced ​​without any empty winding. Moreover, multiple layers of wire rope can also be effectively bundled, effectively solving the wear problem of wire ropes used in existing hoists, extending the service life of the wire ropes, and improving the working efficiency of the hoist.

[0020] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate this application and form part of the specification. They are used together with the following detailed description to explain this application. It should be understood that the following drawings only show some embodiments of this application and should not be considered as limiting the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings: Figure 1 This illustration shows an assembly schematic diagram of a parallel zigzag groove liner for a hoist provided in an embodiment of this application; Figure 2 It shows Figure 1 The diagram shows the structure of the parallel broken groove liner of the hoist. Explanation of reference numerals in the attached figures: 100. Shaft; 200. Sleeve; 210. Groove liner; 211. Straight groove section; 212. Zigzag groove section; 213. Straight groove; 214. Zigzag groove; 215. Line laying groove; 300. Connecting bearings; 400. Baffle. Detailed Implementation

[0022] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the embodiments of this application.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0024] In the embodiments of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] The present application will now be described in detail with reference to the accompanying drawings and exemplary embodiments. Example

[0028] Please see Figure 1 , Figure 2This embodiment provides a parallel zigzag trough liner for a hoist, including a rotating shaft and a sleeve fitted onto the rotating shaft. Connecting bearings are provided at both ends of the rotating shaft; these bearings can be roller bearings or other commonly used bearings, and can be connected to a transmission mechanism or mounting base for transmission. Baffles are provided at both ends of the sleeve to restrict the wire ropes on both sides of the sleeve. A trough liner for winding the wire ropes is fixedly connected to the outer surface of the sleeve, constraining the winding of the wire ropes. The outer surface of the trough liner includes... The system comprises straight and zigzag grooves. Straight grooves are used to gather the wire rope, while zigzag grooves guide the rope into adjacent straight grooves. The two grooves are connected end-to-end, and the straight and zigzag sections work together to orderly wind the wire rope around the outer surface of the groove liner. The length ratio of the straight to the zigzag groove is 3-4. The groove shapes of the straight and zigzag grooves can be matched to wire ropes of different specifications, allowing for flexible adaptation to hoists with varying wire rope specifications, thus offering broad application prospects.

[0029] As a preferred embodiment of the above technical solution, the baffle is inclined from the side closer to the rotating shaft to the side farther away from the rotating shaft. The angle of the baffle is 5-10°. The inclined baffle can accommodate the staggered stacking relationship of the wire rope. The number of wire rope layers closer to the inside of the sleeve is one less than the number of adjacent wire rope layers farther away from the inside of the sleeve. The angle of the baffle is mainly determined by the diameter of the wire rope to ensure the winding relationship of the wire rope on the sleeve and to better constrain the multi-layered wire rope, thus orderly limiting the winding of the wire rope. The central angle of the zigzag groove segment winding on the sleeve is 30-60°, and the central angle of the zigzag groove segment winding on the sleeve is preferably 45°. The middle position of the zigzag groove segment corresponds to the transverse center line of the sleeve, so as to regulate the wire rope from one straight groove segment to the adjacent straight groove segment and ensure the winding of the wire rope is neat.

[0030] As a preferred embodiment of the above technical solution, the straight groove section includes multiple parallel straight grooves, which are fan-shaped and set as arcs with a central angle of less than 180°. The central angle of the straight grooves is preferably set to 120-150° to ensure both sufficient constraint on the wire rope and to consider the tightness of the wire rope when it subsequently leaves the sleeve. The zigzag groove section includes multiple parallel zigzag grooves, the number of which is equal to the number of straight grooves. The zigzag grooves are also fan-shaped and set as arcs with a central angle of less than 180°. The central angle of the zigzag groove section is preferably set to 100-140°. Since the zigzag groove section itself has a certain angle change, in order to prevent the wire rope from getting stuck when it comes off the sleeve, the central angle of the zigzag groove is generally smaller than that of the straight groove. The central angle of the section connecting the zigzag groove and the straight groove is smaller than that of the middle section of the zigzag groove. While ensuring a certain constraint on the wire rope, it can effectively transfer the wire rope from one of the straight grooves into the adjacent straight groove, and can also effectively retract when the wire rope comes off the sleeve.

[0031] As a preferred embodiment of the above technical solution, the two baffles have multiple parallel wire-laying grooves on their opposite sides. These grooves are irregularly arc-shaped. The arc-shaped grooves on the baffles are designed to ensure the orderly layering of the inner and outer wire ropes, and to stably hold the wire ropes near the baffles in place. This prevents the inner layer from being wound onto the outer layer before it is fully wound, thus better controlling the winding sequence of the wire ropes. The radius of the bottom arc surface of the wire-laying groove is larger than the radius of the wire rope used, and the radius of the arc surface of the wire-laying groove is greater than... The large radius of the wire rope ensures that the wire rope is not stuck when it leaves the sleeve. The radius of the top arc surface of the wire release groove is equal to the radius of the wire rope used. This effectively gathers the wire ropes of adjacent layers. The arc sidewall of the wire release groove gradually transitions from the bottom arc surface to the top arc surface. The bottom arc surface of the release groove smoothly transitions to the top arc surface, which is more suitable for the gathering and releasing of the wire rope. This adapts to the hoist's lifting and lowering processes for the wire rope, extending its service life.

[0032] As a preferred embodiment of the above technical solution, the difference between the circular arc of adjacent wire feeding grooves and the diameter of the wire rope used is less than 0.75mm. The groove shapes of the straight and zigzag groove sections can be matched with wire ropes of different specifications, allowing for flexible adaptation to hoists with different wire rope specifications. The groove orientation of the parallel zigzag groove drum liner differs from that of ordinary spiral grooves. Each circumference of the parallel zigzag groove drum liner has two straight groove sections and two zigzag groove sections. The wire rope winding direction is straight groove section—zigzag groove section—straight groove section—zigzag groove section, of which approximately 75%-80% of the groove liner rope grooves are straight groove sections, and the remainder are zigzag groove sections. When the wire rope is wound in multiple layers, it is ensured that the upper layer of wire rope in the straight groove section of the groove liner is completely submerged.

[0033] A method for preparing a parallel broken groove liner for a hoist includes the following steps: S1. Fit the sleeve onto the rotating shaft and set baffles at both ends of the sleeve; S2. After connecting the straight groove segment and the broken groove segment of the groove liner end to end, wrap it around the outer surface of the sleeve. The broken groove segment is wrapped around the horizontal position of the sleeve, and the central angle of the broken groove segment to the sleeve is 30-60°, preferably 45°. S3. Attach the wire rope to the sleeve with the grooved liner.

[0034] The bearing of the parallel zigzag groove liner plate for the hoist provided in this application is rotatably mounted. The wire rope is wound around the groove liner plate on the outer surface of the sleeve, and the winding trajectory of the wire rope is constrained by straight groove sections and zigzag groove sections. The straight groove sections effectively gather the wire rope, and the zigzag groove sections turn the wire rope into adjacent straight groove sections to continue gathering, effectively preventing the wire rope from tangling. Furthermore, the baffles on both sides of the sleeve restrict the wire rope, ensuring that after the wire rope near the inside of the sleeve is wound, a second layer of wire rope is superimposed, thus ensuring that the entire sleeve... All wire ropes can be neatly bundled; the concave shape of the groove liner is adapted to the outer diameter of the wire rope, and the length ratio of the straight groove section to the broken groove section can be adjusted to effectively adapt to different wire rope splices, ensuring that when the wire rope is wound in multiple layers, both the straight groove section and the broken groove section can be fully spliced ​​without any empty winding. Moreover, multiple layers of wire rope can also be effectively bundled, effectively solving the wear problem of wire ropes used in existing hoists, extending the service life of the wire ropes, and improving the working efficiency of the hoist.

[0035] The optional embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present application are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present application, various simple modifications can be made to the technical solutions of the embodiments of the present application, and these simple modifications all fall within the protection scope of the embodiments of the present application.

[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the embodiments of this application will not describe the various possible combinations separately.

[0037] Furthermore, various different implementation methods of the embodiments of this application can be combined arbitrarily, as long as they do not violate the spirit of the embodiments of this application, they should also be regarded as the content disclosed in the embodiments of this application.

Claims

1. A parallel zigzag groove liner for a hoist, comprising a rotating shaft and a sleeve fitted onto the rotating shaft, characterized in that, The two ends of the rotating shaft are provided with connecting bearings; The sleeve is provided with baffles at both ends, and a groove liner plate for winding steel wire rope is fixedly connected to the outer surface of the sleeve. The outer surface of the groove liner includes straight groove segments and broken groove segments, with adjacent straight groove segments and broken groove segments connected end to end, and the length ratio of the straight groove segment to the broken groove segment is 3-4:1; The zigzag groove segment includes a plurality of zigzag grooves, and the straight groove segment includes a plurality of straight grooves that are parallel to each other. The central angle of the connecting segment between the zigzag groove and the straight groove is smaller than the central angle of the middle segment of the zigzag groove. The two baffles have multiple parallel wire-laying grooves on their opposite sides. The wire-laying grooves are irregular arc-shaped. The radius of the bottom arc surface of the wire-laying groove is greater than the radius of the steel wire rope used. The radius of the top arc surface of the wire-laying groove is equal to the radius of the steel wire rope used. The difference between the distance between the centers of the arc surfaces of adjacent wire-laying grooves and the diameter of the steel wire rope used is less than 0.75 mm.

2. The parallel zigzag groove liner for the elevator according to claim 1, characterized in that... The sleeve is arranged with two straight grooves and two broken grooves around its circumference to form a double broken loop rope groove.

3. The parallel zigzag groove liner for the elevator according to any one of claims 1-2, characterized in that, The straight groove segment includes multiple parallel straight grooves, which are fan-shaped.

4. The parallel zigzag groove liner for the elevator according to claim 3, characterized in that, The straight groove is configured as an arc shape with a central angle of less than 180°.

5. The parallel zigzag groove liner for the elevator according to claim 4, characterized in that, The zigzag groove segment includes multiple parallel zigzag grooves, the number of which is equal to the number of the straight grooves, and the zigzag grooves are also fan-shaped.

6. The parallel zigzag groove liner for the elevator according to claim 5, characterized in that, The groove with the broken line is set in the shape of an arc with a central angle of less than 180°.

7. A method for manufacturing the parallel zigzag groove liner of the elevator according to any one of claims 1-6, characterized in that... Includes the following steps: S1. Fit the sleeve onto the rotating shaft and set baffles at both ends of the sleeve; S2. After connecting the straight groove section and the broken groove section end to end, wrap them around the outer surface of the sleeve. S3. Attach the wire rope to the sleeve with the grooved liner.

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