winch device

Abstract

The utility model relates to hoist equipment technical field provides a hoist device, and the hoist device includes hoist subassembly and pressure rope subassembly, and hoist subassembly includes reel and hoist support plate, and reel rotatably is located in hoist support plate, and hoist support plate still is equipped with a plurality of first installation department and a plurality of second installation department, pressure rope subassembly includes pressure rope support, fixed axle, elastic part and press roll, and one of a plurality of first installation department is detachably arranged at the one side of pressure rope support, and is rotatably matched with first installation department, and one of a plurality of second installation department is detachably arranged at fixed axle, and one end of elastic part is connected with the other side of pressure rope support, and the other end is connected with fixed axle, and press roll rotatably is arranged at pressure rope support, the hoist device provided by the utility model, adjustable installation structure can make the coupling point of press roll relative to steel wire rope and reel always be in the proper space position, so this can reduce the friction loss of steel wire rope, and can guarantee the restraint effect of steel wire rope.

Description

Technical Field

[0001] This utility model relates to the field of winch equipment technology, and in particular to a winch device. Background Technology

[0002] During the crane's ascent and descent, the wire rope has multiple layers wound on the drum. When the crane is lowered onto the ship with its counterweight, the ship's bobbing can cause the counterweight to fail to tighten the wire rope, thus posing a risk of the wire rope becoming loose and tangled on the drum. A conventional rope-pressing mechanism is typically fixed separately on one side of the winch. During the wire rope's winding and unwinding process, this mechanism presses the wire rope firmly against the drum.

[0003] However, the exit angle of the wire rope varies under different working conditions, which leads to multiple possibilities for the exit direction of the wire rope and the tangent position of the drum. Existing rope pressing mechanisms can only press the wire rope at a fixed position. Changes in the exit angle of the wire rope will correspondingly change the relative position of the tangent position and the rope pressing mechanism. The distance between the tangent position and the rope pressing mechanism will affect the motor load and the wear rate of the wire rope. If the distance is inappropriate, there is still a risk of loosening and tangling of the rope. Utility Model Content

[0004] This utility model provides a winch device to solve the defect of the single position of the rope pressing mechanism in the prior art. The adjustable installation structure can make the coupling point of the pressure roller relative to the wire rope and the drum always in a suitable spatial position. This can reduce the friction loss of the wire rope caused by the increase of the contact arc length, and ensure the constraint effect of the wire rope through the appropriate spatial position, thereby reducing the impact on the motor load.

[0005] The hoisting device provided by this utility model includes:

[0006] The hoisting assembly includes:

[0007] reel;

[0008] A winch support plate, wherein the drum is rotatably mounted on the winch support plate, and the winch support plate is further provided with a plurality of first mounting parts and a plurality of second mounting parts, wherein the plurality of first mounting parts are arranged around the drum and the plurality of second mounting parts are arranged around the drum.

[0009] The rope pressing assembly includes:

[0010] A rope pressing bracket, one side of which is detachably disposed on one of the plurality of first mounting parts and rotatably engaged with the first mounting part;

[0011] A fixed shaft is detachably mounted on one of a plurality of second mounting portions;

[0012] An elastic element, one end of which is connected to the other side of the rope pressing bracket, and the other end of which is connected to the fixed shaft;

[0013] A pressure roller, rotatably mounted on the rope-pressing bracket, is used to abut against the wire rope when the wire rope is wound on the drum.

[0014] The winch device provided by this utility model also includes the aforementioned wire rope.

[0015] The wire rope includes:

[0016] A curved section is wound around the drum;

[0017] An extension segment connects to the curved segment and extends in a direction away from the curved segment;

[0018] The connection point between the curved section and the extended section is A, the coupling point between the pressure roller and the curved section is B, and the rotation center of the drum is O. In the same plane, the value of ∠AOB ranges from -26° to -46°.

[0019] According to the winch device provided by this utility model, the extension section has a tensioned state and a relaxed state;

[0020] The hoisting device further includes:

[0021] A detection roller is rotatably mounted on the winch support plate and located on the side of the extension section away from the drum. The detection roller is used to detect the tension and slack states of the extension section. When the extension section is in a tensioned state, the detection roller is also used to limit the rope exit direction of the extension section.

[0022] A control component, electrically connected to the detection roller, is used to control the roll to wind up the extended section when the extended section is in a slack state.

[0023] According to the winch device provided by this utility model, the first mounting part includes a first mounting hole or a first mounting protrusion;

[0024] When the first mounting part includes the first mounting hole, the rope pressing bracket is provided with a first limiting protrusion, which is detachably provided in the first mounting hole and rotates with the first mounting hole;

[0025] When the first mounting part includes the first mounting protrusion, the rope pressing bracket is provided with a first limiting hole, which is detachably fitted onto the first mounting protrusion and rotates with the first mounting protrusion.

[0026] According to the winch device provided by this utility model, the second mounting part includes a second mounting hole or a second mounting protrusion;

[0027] When the second mounting part includes the second mounting hole, the end of the fixed shaft is provided with a second limiting protrusion, and the second limiting protrusion is detachably provided in the second mounting hole;

[0028] When the second mounting portion includes the second mounting protrusion, the end of the fixed shaft is provided with a second limiting hole, which is detachably fitted onto the second mounting protrusion.

[0029] The winch device provided by this utility model

[0030] The reel includes:

[0031] The cylinder is rotatably mounted on the winch support plate;

[0032] Two end plates are disposed opposite to each other at both ends of the cylinder. The cylinder and the two end plates together restrict an annular limiting groove. The groove depth of the annular limiting groove is a. The annular limiting groove is used to limit the movement of the wire rope.

[0033] The pressure roller is located between the two end plates, and the radial distance from the rolling surface of the pressure roller to the axis of rotation of the pressure roller is b, where a≤b.

[0034] According to the winch device provided by this utility model, when the wire rope is wound on the drum, the distance between the end face of the pressure roller and the end plate on the same side is smaller than the diameter of the wire rope.

[0035] According to the winch device provided by this utility model, the rope pressing bracket includes:

[0036] First support component;

[0037] The second support member is disposed opposite to the first support member, and the pressure roller is rotatably disposed between the first support member and the second support member;

[0038] A rotating shaft passes through the first support member and the second support member and is located on one side of the pressure roller; the rotating shaft is detachably provided in the first mounting part and rotates with the first mounting part.

[0039] A connector is disposed between the first support and the second support, and is located on the side of the pressure roller away from the rotation axis; the elastic element is connected to the connector.

[0040] According to the hoisting device provided by this utility model, at least two elastic elements are provided, and the at least two elastic elements are evenly spaced between the connecting member and the fixed shaft.

[0041] According to the winch device provided by this utility model, two winch support plates are provided, and the two winch support plates are arranged opposite to each other on both sides of the drum.

[0042] The winch device provided by this utility model allows the operator to select a first mounting part matching the current coupling point to fix the rope-pressing bracket when the coupling point between the wire rope and the drum changes with the direction of the wire rope exit. A corresponding second mounting part is then selected to install the fixing shaft. This ensures that the coupling point between the pressure roller and the wire rope is at a suitable position relative to the coupling point between the drum and the wire rope, thereby ensuring the pressure roller's restraining effect on the wire rope. Furthermore, the elastic element, through the linkage adjustment between the fixing shaft and the rope-pressing bracket, ensures that the pressure roller maintains appropriate clamping force under different installation positions and with different wire rope winding thicknesses.

[0043] Compared to the fixed rope pressing mechanism in the prior art, the winch device provided by this utility model has an adjustable installation structure that allows the pressure roller to always be in a suitable spatial position relative to the coupling point of the wire rope and the drum when facing different rope output directions. This can reduce the friction loss of the wire rope caused by the increase in contact arc length, ensure the restraint effect of the wire rope, reduce the impact on the motor load, and effectively improve the adaptability of the winch device under complex working conditions. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the shaft side structure of the hoisting device provided in this embodiment of the utility model.

[0046] Figure 2 This is a schematic diagram of the axial structure of the rope pressing assembly provided in this embodiment of the utility model.

[0047] Figure 3 This is a schematic diagram of the structure of the winch support plate provided in an embodiment of this utility model.

[0048] Figure 4 This is a front view of the hoisting device provided in an embodiment of this utility model.

[0049] Figure 5 yes Figure 4 Sectional view at point BB.

[0050] Figure label:

[0051] 100: Hoist assembly; 110: Drum; 111: Drum body; 112: End plate; 120: Hoist support plate; 121: First mounting part; 122: Second mounting part; 200: Rope pressing assembly; 210: Rope pressing bracket; 211: First support member; 212: Second support member; 213: Rotating shaft; 214: Connector; 220: Fixed shaft; 230: Elastic member; 240: Pressure roller; 300: Wire rope; 310: Bending section; 320: Extension section; 400: Detection roller. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0053] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0054] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Figure 1 This is a schematic diagram of the shaft side structure of the hoisting device provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the axial structure of the rope pressing assembly provided in this embodiment of the utility model.

[0057] See Figure 1 and Figure 2 This utility model provides a winch device, which includes a winch assembly 100 and a rope pressing assembly 200. The winch assembly 100 includes a motor, a drum 110 and a winch support plate 120. A motor mounting seat is provided on one side of the winch support plate 120, and the motor is mounted on the motor mounting seat. The drum 110 is rotatably mounted on the other side of the winch support plate 120 and connected to the output shaft of the motor. The motor is used to drive the drum 110 to rotate.

[0058] Figure 3 This is a schematic diagram of the structure of the winch support plate provided in an embodiment of this utility model.

[0059] See Figure 3 The winch support plate 120 is also provided with a first mounting part 121 and a second mounting part 122. The first mounting part 121 and the second mounting part 122 are provided on the side of the winch support plate 120 away from the motor. Multiple first mounting parts 121 are provided, and multiple first mounting parts 121 are arranged around the drum 110. Multiple second mounting parts 122 are also provided, and multiple second mounting parts are also arranged around the drum 110.

[0060] The specific positions and quantities of the first mounting part 121 and the second mounting part 122 can be adapted to different rope output directions of the wire rope 300 in the application environment. They can be arranged evenly around each other, or arranged in a sparse and dense manner, or concentrated on the outer side of a certain arc surface of the drum 110. Specifically, the specific positions of the first mounting part 121 and the second mounting part 122 can be adjusted according to the position of the rope pressing assembly 200 according to the rope output direction.

[0061] Figure 4 This is a front view of the hoisting device provided in this embodiment of the utility model; Figure 5 yes Figure 4 Sectional view at point BB.

[0062] It should be noted that the direction of the wire rope 300's exit refers to the direction in which the wire rope 300 moves after separating from the drum 110; in other words, it is the direction of the tangent at the point of tangency between the wire rope 300 and the drum 110. Figure 5 The H direction in the middle.

[0063] The rope pressing assembly 200 includes a rope pressing bracket 210, a fixed shaft 220, an elastic element 230, and a pressure roller 240. One side of the rope pressing bracket 210 is detachably mounted on one of a plurality of first mounting parts 121 and rotates with it. The fixed shaft 220 is detachably mounted on one of a plurality of second mounting parts 122. The position of the fixed shaft 220 needs to correspond to the rope pressing bracket 210 to ensure that the elastic potential energy of the elastic element 230 is within a suitable range.

[0064] One end of the elastic element 230 is connected to the other side of the rope pressing bracket 210, and the other end of the elastic element 230 is connected to the fixed shaft 220; the pressure roller 240 is rotatably mounted on the rope pressing bracket 210. When the wire rope 300 is wound on the drum 110, the pressure roller 240 can be driven by the elastic element 230 and the fixed shaft 220, thereby pressing against the surface of the wire rope 300.

[0065] In use, the direction of the wire rope 300 is first selected according to the actual working conditions. Then, the coupling point between the wire rope 300 and the drum 110 is determined, that is, the position where the wire rope 300 separates from or contacts the drum 110. Then, the appropriate position of the pressure roller 240 in the rope pressing assembly 200 is determined according to the position of the coupling point. After the position of the pressure roller 240 is determined, the appropriate first mounting part 121 and second mounting part 122 are selected according to the position of the pressure roller 240 relative to the winch support plate 120. Finally, the rope pressing assembly 200 and the fixed shaft 220 are correspondingly set in the first mounting part 121 and the second mounting part 122. During the movement of the wire rope 300, the pressure roller 240 is pressed tightly against the surface of the wire rope 300 by the elastic element 230, thereby achieving the fixed limit of the wire rope 300.

[0066] In the prior art, the pressure roller 240 has two possible positions relative to the coupling point between the wire rope 300 and the drum 110. One is that the pressure roller 240 is located on the side of the coupling point facing the direction of rope output (e.g., Figure 5 (See position D in the diagram); secondly, the pressure roller 240 is located on the side of the coupling point away from the direction of rope output (e.g., position D in the diagram). Figure 5(The diagram shows the current position of the pressure roller 240 and position E). When the pressure roller 240 is located on the side where the coupling point faces the rope output direction, during the winding and unwinding process, the wire rope 300 needs to move a certain distance along the arc surface at the bottom of the pressure roller 240 before it can continue to move along the original rope output direction. In this position, the contact area between the pressure roller 240 and the wire rope 300 is large, which will accelerate the wear of the wire rope 300 and reduce its lifespan.

[0067] When the pressure roller 240 is in position E, although the contact area between the pressure roller 240 and the wire rope 300 is small, the pressure roller 240 is far from the coupling point between the wire rope 300 and the drum 110. When the wire rope 300 is slack, the wire rope 300 is prone to tangling and irregular winding. In addition, when the coupling point between the wire rope 300 and the drum 110 and the coupling point between the wire rope 300 and the pressure roller 240 are close, the resistance when the wire rope 300 exits the drum increases, which in turn increases the load on the motor.

[0068] See Figures 1 to 5 It is understood that, during use, when the coupling point between the wire rope 300 and the drum 110 changes with the direction of the wire rope 300's exit, the operator can select the first mounting part 121 matching the current coupling point position to fix the rope pressing bracket 210, and correspondingly select the second mounting part 122 to install the fixing shaft 220. This ensures that the coupling point between the pressure roller 240 and the wire rope 300 is in a suitable position relative to the coupling point between the drum 110 and the wire rope 300, thereby ensuring the pressure roller 240's restraining effect on the wire rope 300. Furthermore, the elastic element 230, through the linkage adjustment between the fixing shaft 220 and the rope pressing bracket 210, ensures that the pressure roller 240 maintains appropriate clamping force under different installation positions and with different winding thicknesses of the wire rope 300.

[0069] Compared to the fixed rope pressing mechanism in the prior art, the winch device provided by this utility model has an adjustable installation structure that allows the coupling point of the pressure roller 240 relative to the wire rope 300 and the drum 110 to always be in a suitable spatial position when facing different rope output directions. This can reduce the frictional loss of the wire rope 300 caused by the increase in contact arc length, and also ensure the restraint effect of the wire rope 300, reduce the impact on the motor load, and thus effectively improve the adaptability of the winch device under complex working conditions.

[0070] Continue reading Figure 5In an optional embodiment of this utility model, the hoisting device further includes a wire rope 300, which includes a bent section 310 and an extended section 320. The bent section 310 is wound around the drum 110, and the extended section 320 is connected to the bent section 310 and extends in a direction away from the bent section 310. It should be noted that the bent section 310 and the extended section 320 can be interchanged as the drum 110 rotates.

[0071] In this embodiment, the connection point between the bending section 310 and the extension section 320 is defined as A, which is the coupling point between the aforementioned wire rope 300 and the drum 110; the coupling point between the pressure roller 240 and the bending section 310 is defined as B, which is the coupling point between the aforementioned wire rope 300 and the pressure roller 240; the rotation center of the drum 110 is defined as O. In the same plane, the value range of ∠AOB is -26° to -46°. For example, ∠AOB can be selected as -26°, -28°, -30°, -36°, -40°, -46°, etc.

[0072] It should be noted that the positive and negative values ​​of the above angles are taken with reference to the reference line AO ​​(i.e., the line connecting the coupling point of the wire rope 300 and the drum 110 and the rotation center of the drum 110). The side of the reference line facing the rope output direction H is positive, and the side away from the rope output direction H is negative. The positive and negative directions here are only settings given for the convenience of angle representation and are not intended as specific limitations of this utility model embodiment.

[0073] It is understood that in this embodiment of the present invention, the coupling point between the wire rope 300 and the drum 110 is used as a reference, and the spatial position of the pressure roller 240 is limited within the aforementioned selectable range by means of angle limitation. In this way, regardless of how the exit angle of the wire rope 300 changes, the pressure roller 240 can be guaranteed to be in a suitable spatial position relative to the coupling point between the drum 110 and the wire rope 300. Compared with ∠AOB being selected as a positive angle, this can reduce the frictional loss of the wire rope 300 caused by the increase in the contact arc length. Compared to an angle between -26°, this effectively reduces the resistance of the pressure roller 240 to the wire rope 300, thereby reducing the load on the motor. Compared to an angle between -46° and -180° for ∠AOB, it ensures the restraint effect of the wire rope 300 and prevents the wire rope 300 from becoming tangled due to insufficient restraint in a slack state. Secondly, this clear reference standard can help operators quickly and accurately assemble the rope pressing assembly 200 onto the winch assembly 100, thereby effectively improving the assembly efficiency of the winch device.

[0074] Continue reading Figure 5In an optional embodiment of this utility model, the aforementioned extension section 320 has a tensioned state and a slack state. The specific state of the extension section 320 is related to the external connection structure. For example, when the crane is lowered onto the ship with a counterweight, the ship's floating may cause the counterweight of the wire rope 300 to fail to tighten the wire rope 300. The extension section 320 of the wire rope 300 may change from the original tensioned state to a slack state. The specific state of the extension section 320 can be found in the prior art, and will not be described in detail here.

[0075] The hoisting device also includes a detection assembly, which comprises a detection roller 400 and control components. The detection roller 400 is rotatably mounted on the hoisting support plate 120 and located on the side of the extension section 320 away from the drum 110 (e.g., Figure 5 The detection roller 400 is located above the extension section 320. The detection roller 400 is used to detect the tension and slack states of the extension section 320. Specifically, a sensor is installed inside the detection roller 400. This sensor can detect the force exerted by the lower wire rope 300 on the detection roller 400. Based on the judgment of this force, it can be identified whether the extension section 320 of the wire rope 300 is in a tensioned state. If it is not in a tensioned state, it is judged to be in a slack state. The control unit is electrically connected to the detection roller 400. When the extension section 320 is in a slack state, the control unit is used to control the drum 110 to wind up the extension section 320. For the specific structure and detection method of the detection roller 400 and the control unit, please refer to the prior art.

[0076] In this embodiment, it is important to note that when the wire rope 300 is in a tensioned state, the detection roller 400 is also used to restrict the exit direction of the extension section 320. Specifically, when the wire rope 300 is tensioned, it will come into contact with the detection roller 400. Since the detection roller 400 is located on the side of the wire rope 300 away from the drum 110, the detection roller 400 restricts the direction in which the wire rope 300 deviates from the drum 110, that is, the exit direction of the wire rope 300.

[0077] Understandably, during the assembly stage of the drum 110, since the wire rope 300 is not under tension, it is difficult to determine the specific exit direction of the wire rope 300, which increases the assembly difficulty of the rope pressing assembly 200. In the winch device provided in this embodiment, during the assembly stage, the live end of the wire rope 300 can be pulled up to the detection roller 400. In this way, the exit direction of the wire rope 300 can be roughly determined, and the position of the coupling point between the wire rope 300 and the drum 110 can be determined, thereby effectively reducing the assembly complexity of the rope pressing assembly 200. At the same time, the sensor built into the detection roller 400 can accurately identify the tension or slack state of the extension section 320 by sensing the force applied to it by the wire rope 300 in real time. It can also provide real-time feedback for the subsequent dynamic adjustment of the drum 110, thereby triggering an early warning or adjustment mechanism in time when the wire rope 300 slacks.

[0078] In an optional embodiment of this utility model, the first mounting part 121 includes a first mounting hole or a first mounting protrusion; when the first mounting part 121 includes a first mounting hole, the rope pressing bracket 210 is provided with a first limiting protrusion, the first limiting protrusion is detachably provided in the first mounting hole and rotatably engaged with the first mounting hole; when the first mounting part 121 includes a first mounting protrusion, the rope pressing bracket 210 is provided with a first limiting hole, the first limiting hole is detachably sleeved on the first mounting protrusion and rotatably engaged with the first mounting protrusion.

[0079] Understandably, when the first mounting part 121 is a mounting hole, the limiting protrusion of the rope pressing bracket 210 achieves a rotatable connection by inserting into the hole; when the first mounting part 121 is a mounting protrusion, the limiting hole of the rope pressing bracket 210 is fitted onto the protrusion to form a rotating pair. These two matching methods can be adaptively selected according to the actual situation, thereby effectively improving the design flexibility of the winch device. At the same time, the interlocking design of the protrusion and the hole simplifies the disassembly and assembly steps while ensuring connection stability, allowing the rope pressing assembly 200 to quickly adjust its installation position according to changes in the rope output direction, thereby better maintaining the spatial relationship between the coupling point of the pressure roller 240 and the wire rope 300, which enhances the adaptability of the winch device to different working conditions.

[0080] In an optional embodiment of the present invention, the second mounting portion 122 includes a second mounting hole or a second mounting protrusion; when the second mounting portion 122 includes a second mounting hole, the end of the fixed shaft 220 is provided with a second limiting protrusion, which is detachably provided in the second mounting hole; when the second mounting portion 122 includes a second mounting protrusion, the end of the fixed shaft 220 is provided with a second limiting hole, which is detachably sleeved on the first mounting protrusion.

[0081] It is understandable that when the second mounting part 122 is the second mounting hole, the second limiting protrusion of the fixed shaft 220 is inserted into the hole to form a stable connection; if the second mounting part 122 is a protrusion, the second limiting hole of the fixed shaft 220 is sleeved on the protrusion to achieve positioning. These two matching methods can be adapted to the actual situation, thereby effectively improving the design flexibility of the winch device. At the same time, the interlocking design of the protrusion and the hole simplifies the disassembly and assembly steps while ensuring connection stability. On the one hand, it allows the rope pressing assembly 200 to quickly adjust the installation position according to the change of the rope output direction, thereby better maintaining the spatial relationship between the coupling point of the pressure roller 240 and the wire rope 300. On the other hand, it can also quickly adjust the tension of the elastic element 230, thereby maintaining the constant pressing effect of the pressure roller 240 on the wire rope 300 in dynamic working conditions, which enhances the adaptability of the winch device to different working conditions.

[0082] Continue reading Figure 1 , Figure 2 and Figure 4 In an optional embodiment of this utility model, the drum 110 includes a drum body 111 and two end plates 112. The two end plates 112 are disposed opposite to each other on both sides of the drum body 111. The two end plates 112 and the drum body 111 together restrict an annular limiting groove, which is used to limit the wire rope 300. In this embodiment, the depth of the annular limiting groove is defined as a, and the thickness of the pressure roller 240, that is, the radial distance from the rolling surface of the pressure roller 240 to its own rotation axis, is defined as b, where a≤b. That is, in this embodiment, the thickness of the pressure roller 240 needs to be greater than the depth of the groove.

[0083] In existing technologies, segmented pressure rollers 240 are generally used, with a groove in the middle of the pressure roller 240. There is a risk that the wire rope 300 may get stuck when passing through this groove. Understandably, in the winch device provided in this embodiment, when the pressure roller 240 is pressed down, it enters the mounting groove, thereby pressing the wire rope 300 tightly. By limiting the thickness of the pressure roller 240 within the aforementioned range, positional interference between the pressure roller 240's own shaft and the rope pressing bracket 210 and the end plates 112 on both sides of the drum 110 can be avoided. Compared to the segmented pressure roller 240 in existing technologies, this design allows for the use of a single, integrated pressure roller 240, thus eliminating the risk of the wire rope 300 getting stuck in the groove of the pressure roller 240 and effectively improving the stability and safety of the winch device's operation.

[0084] Continue reading Figure 4In an optional embodiment of this utility model, when the wire rope 300 is wound on the drum 110, the distance between the end face of the pressure roller 240 and the end plate 112 on the same side is smaller than the diameter of the wire rope 300. It is understood that with this configuration, when the wire rope 300 is disturbed by external force or the drum 110 rotates and tends to shift laterally, the narrow gap between the end face of the pressure roller 240 and the end plate 112 can effectively prevent the wire rope 300 from laterally detaching from the winding area of ​​the drum 110, thereby avoiding localized loosening or tangling caused by the wire rope 300 slipping off, and effectively improving the adaptability of the rope pressing assembly 200 to complex working conditions.

[0085] Continue reading Figure 2 In an optional embodiment of this utility model, the rope pressing bracket 210 includes a first support member 211, a second support member 212, a rotating shaft 213, and a connecting member 214. The first support member 211 and the second support member 212 are arranged opposite to each other, and the pressure roller 240 is rotatably disposed between the first support member 211 and the second support member 212. The rotating shaft 213 passes through the first support member 211 and the second support member 212 and is located on one side of the pressure roller 240. The end of the rotating shaft 213 that passes through the first support member 211 and the second support member 212 is detachably disposed on the first mounting part 121 and rotatably engaged with the first mounting part 121.

[0086] The connecting member 214 is located between the first support member 211 and the second support member 212, and is situated on the side of the pressure roller 240 away from the rotating shaft 213. The elastic member 230 is located between the connecting member 214 and the fixed shaft 220. It is understood that the rotational engagement between the rotating shaft 213 and the first mounting part 121, along with the connection between the connecting member 214 and the elastic member 230, allows the pressure rope bracket 210 to adaptively adjust its angle around the shaft during the dynamic winding and unwinding of the wire rope 300, thereby providing sufficient clamping force to the pressure roller 240. Furthermore, the arrangement of the first support member 211 and the second support member 212 allows for the transmission of uniform clamping force from both sides of the pressure roller 240, ensuring the stability of the pressure roller 240 during operation.

[0087] Continue reading Figure 1 and Figure 2In an optional embodiment of this utility model, at least two elastic elements 230 are provided, and the at least two elastic elements 230 are evenly spaced between the connector 214 and the fixed shaft 220. It can be understood that this symmetrical arrangement of elastic elements 230, by applying forces synchronously, can prevent the connector 214 from being subjected to uneven force on one side when transmitting elastic potential energy, thereby ensuring that the clamping force of the pressure roller 240 on the wire rope 300 is evenly distributed along the axial direction. Secondly, this structural design enhances the overall stability of the rope pressing assembly 200, and through the mutual compensation of redundant elastic elements 230, it can still maintain the basic clamping function when a single elastic element 230 fails unexpectedly. This not only improves the risk resistance of the rope pressing mechanism, but also extends the service life of the elastic elements 230 through the load-sharing effect.

[0088] Continue reading Figure 1 and Figure 4 In an optional embodiment of this utility model, two winch support plates 120 are provided, and the two winch support plates 120 are arranged opposite each other on both sides of the drum 110. It can be understood that the symmetrical layout of the double winch support plates 120 not only enhances the axial stability of the drum 110 during rotation, but also reduces the risk of support plate deformation by dispersing the concentrated stress of the single-sided support, thereby maintaining the coaxiality of the drum 110 axis and the motor output shaft under high-speed winding and unwinding or high-load conditions. Secondly, the winch support plates 120 on both sides jointly bear the installation requirements of the rope pressing assembly 200, providing a symmetrically distributed installation reference surface for the multi-position adjustable rope pressing assembly 200, which can effectively improve the stability of the rope pressing assembly 200.

[0089] It should be noted that the technical solutions in the various embodiments of this utility model can be combined with each other, but the basis for such combination is that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist, that is, it is not within the protection scope of this utility model.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hoisting device, characterized in that include: The hoist assembly (100) includes: Roll (110); A winch support plate (120) is provided, and the drum (110) is rotatably disposed on the winch support plate (120). The winch support plate (120) is also provided with a plurality of first mounting parts (121) and a plurality of second mounting parts (122). The plurality of first mounting parts (121) are disposed around the drum (110), and the plurality of second mounting parts (122) are disposed around the drum (110). The rope pressing assembly (200) includes: A rope pressing bracket (210) is detachably disposed on one side of one of the plurality of first mounting parts (121) and rotates with the first mounting part (121); A fixed shaft (220) is detachably disposed in one of a plurality of second mounting portions (122); An elastic element (230) is provided, with one end connected to the other side of the rope pressing bracket (210) and the other end connected to the fixed shaft (220). The pressure roller (240), rotatably mounted on the rope pressing bracket (210), is used to abut against the wire rope (300) when the wire rope (300) is wound on the drum (110).

2. The hoisting device of claim 1, wherein It also includes the steel wire rope (300). The wire rope (300) includes: The curved section (310) is wound around the drum (110). The extension segment (320) is connected to the curved segment (310) and extends in a direction away from the curved segment (310); The connection point between the curved section (310) and the extended section (320) is A, the coupling point between the pressure roller (240) and the curved section (310) is B, the rotation center of the drum (110) is O, and the value range of ∠AOB in the same plane is -26° to -46°.

3. The hoisting device of claim 2, wherein The extension segment (320) has a tensioned state and a relaxed state; The hoisting device further includes: A detection roller (400) is rotatably disposed on the winch support plate (120) and located on the side of the extension section (320) away from the drum (110). The detection roller (400) is used to detect the tension and slack states of the extension section (320). When the extension section (320) is in a tensioned state, the detection roller (400) is also used to limit the rope exit direction of the extension section (320). The control unit, electrically connected to the detection roller (400), is used to control the drum (110) to wind up the extension section (320) when the extension section (320) is in a slack state.

4. The hoist of claim 1, wherein The first mounting portion (121) includes a first mounting hole or a first mounting protrusion; When the first mounting part (121) includes the first mounting hole, the rope pressing bracket (210) is provided with a first limiting protrusion, which is detachably provided in the first mounting hole and rotates with the first mounting hole; When the first mounting part (121) includes the first mounting protrusion, the rope pressing bracket (210) is provided with a first limiting hole, which is detachably fitted onto the first mounting protrusion and rotates with the first mounting protrusion.

5. The hoist of claim 1, wherein The second mounting portion (122) includes a second mounting hole or a second mounting protrusion; When the second mounting part (122) includes the second mounting hole, the end of the fixed shaft (220) is provided with a second limiting protrusion, which is detachably provided in the second mounting hole; When the second mounting part (122) includes the second mounting protrusion, the end of the fixed shaft (220) is provided with a second limiting hole, which is detachably fitted onto the second mounting protrusion.

6. The hoisting device according to any one of claims 1 to 5, characterized in that, The reel (110) includes: The cylinder (111) is rotatably mounted on the hoist support plate (120). Two end plates (112) are disposed opposite to each other at both ends of the cylinder (111). The cylinder (111) and the two end plates (112) together restrict an annular limiting groove. The groove depth of the annular limiting groove is a. The annular limiting groove is used to limit the steel wire rope (300). The pressure roller (240) is located between the two end plates (112), and the radial distance from the rolling surface of the pressure roller (240) to the axis of rotation of the pressure roller (240) is b, where a≤b.

7. The hoisting device of claim 6, wherein When the wire rope (300) is wound on the drum (110), the distance between the end face of the pressure roller (240) and the end plate (112) on the same side is smaller than the diameter of the wire rope (300).

8. The hoisting device according to any one of claims 1 to 6, characterized in that The rope pressing bracket (210) includes: First support member (211); The second support member (212) is disposed opposite to the first support member (211), and the pressure roller (240) is rotatably disposed between the first support member (211) and the second support member (212); A rotating shaft (213) passes through the first support member (211) and the second support member (212) and is located on one side of the pressure roller (240); the rotating shaft (213) is detachably provided on the first mounting part (121) and rotates with the first mounting part (121); A connector (214) is disposed between the first support (211) and the second support (212) and is located on the side of the pressure roller (240) away from the rotating shaft (213). The elastic element (230) is connected to the connector (214).

9. The hoist of claim 8, wherein, At least two elastic elements (230) are provided, and at least two elastic elements (230) are evenly spaced between the connector (214) and the fixed shaft (220).

10. The hoisting device according to any one of claims 1 to 6, characterized in that Two winch support plates (120) are provided, and the two winch support plates (120) are arranged opposite each other on both sides of the drum (110).

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