CN216807922U - Rope disorder prevention device for multilayer winding drum - Google Patents
Rope disorder prevention device for multilayer winding drum Download PDFInfo
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- CN216807922U CN216807922U CN202123386355.3U CN202123386355U CN216807922U CN 216807922 U CN216807922 U CN 216807922U CN 202123386355 U CN202123386355 U CN 202123386355U CN 216807922 U CN216807922 U CN 216807922U
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- rope
- winding drum
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Abstract
The utility model discloses a multilayer reel rope disorder prevention device which comprises a transmission group, a cam, a compression rod and a rope pressing roller, wherein the transmission group comprises a shell, a first-stage transmission mechanism, a second-stage transmission mechanism, a third-stage transmission mechanism and a fourth-stage transmission mechanism, the transmission ratio of the first-stage transmission mechanism is set to be 1:1, the transmission ratio of the second-stage transmission mechanism is set to be a:1, the transmission ratio of the third-stage transmission mechanism is set to be b:1, the transmission ratio of the fourth-stage transmission mechanism is set to be n:1, a x b is equal to the winding number of steel wire ropes on each layer of the reel, n is the winding number of the steel wire ropes on the reel, the cam is connected to a driven part of the fourth-stage transmission mechanism, the compression rod is connected to the shell, one end of the compression rod is in contact with the curved surface of the cam, and the other end of the compression rod is connected to the rope pressing roller. The multilayer winding drum rope disorder prevention device can always maintain the state of pressing the steel wire rope, prevent the rope disorder phenomenon when the steel wire rope is wound, adopt a pure mechanical structure, do not need external force action, and ensure that a large winding drum can also prevent the rope disorder phenomenon.
Description
Technical Field
The utility model belongs to the technical field of hoisting and transportation, and particularly relates to a multilayer winding drum rope disorder prevention device.
Background
The rope disorder phenomenon generally exists when multilayer reel wire rope twines, adopts among the prior art to press the rope device to prevent the rope disorder, and this pressure rope device passes through the moment of torsion that coil spring produced and acts on pressing the rope roller, makes pressing the rope roller and sticiss on wire rope to prevent the rope disorder. However, the prior art rope pressing device is effective for small drums, but is not suitable for larger drums due to the limited torque generated by the coil spring.
SUMMERY OF THE UTILITY MODEL
In order to solve part or all technical problems in the prior art, the utility model provides a multilayer winding drum rope disorder prevention device, which comprises a transmission set, a cam, a pressure lever and a rope pressing roller, wherein:
the transmission group comprises a shell, a first-stage transmission mechanism, a second-stage transmission mechanism, a third-stage transmission mechanism and a fourth-stage transmission mechanism, wherein: the primary transmission mechanism is composed of gears on two sides of the winding drum and a first large gear, and the transmission ratio of the primary transmission mechanism is set to be 1: 1; a driving part of the secondary transmission mechanism is connected to the first gearwheel and is meshed with a driven part of the secondary transmission mechanism, and the transmission ratio of the secondary transmission mechanism is set to a: 1; the driving part of the third-stage transmission mechanism is connected to the driven part of the second-stage transmission mechanism and meshed with the driven part of the third-stage transmission mechanism, and the transmission ratio of the third-stage transmission mechanism is set as b: 1; the driving part of the four-stage transmission mechanism is connected to the driven part of the three-stage transmission mechanism and meshed with the driven part of the four-stage transmission mechanism, the transmission ratio of the four-stage transmission mechanism is set to be n:1, wherein a multiplied by b is set to be equal to the number of winding turns of the steel wire rope on each layer of the winding drum, and n is set to be the number of winding layers of the steel wire rope on the winding drum;
the cam is connected to a driven piece of the four-stage transmission mechanism, the pressure lever is connected to the shell, one end of the pressure lever contacts with a cam curved surface of the cam, the other end of the pressure lever is connected to the rope pressing roller, and the winding drum drives the cam to rotate through the transmission group;
the cam curved surface of the cam is designed as follows: the cam is divided into n equal parts in the circumferential direction, wherein n is the number of winding layers of the steel wire rope on the winding drum, and the variation of the height of the curved surface of the cam is equal to the diameter of the steel wire rope every time the cam rotates for 1/n circle.
Further, in the above multilayer winding drum anti-tangling device, the cam is connected to the driven member of the fourth-stage transmission mechanism through a shaft or is directly welded and fixed to the driven member of the fourth-stage transmission mechanism.
Further, in the multilayer winding drum rope disorder prevention device, a driving part of the secondary transmission mechanism is a first small gear, a driven part of the secondary transmission mechanism is a second large gear, and the first small gear is connected to the first large gear through a shaft and meshed with the second large gear; the driving part of the three-stage transmission mechanism is a second small gear, the driven part of the three-stage transmission mechanism is a third large gear, and the second small gear is connected to the second large gear through a shaft and is meshed with the third large gear; the driving part of the four-stage transmission mechanism is a third small gear, the driven part of the four-stage transmission mechanism is a fourth large gear, and the third small gear is connected to the third large gear through a shaft and is meshed with the fourth large gear; the cam is connected to the fourth gearwheel by a shaft or is directly welded to the fourth gearwheel.
Further, in the multilayer winding drum anti-tangling device, the secondary transmission mechanism and the tertiary transmission mechanism can be replaced by a worm gear transmission mechanism.
Compared with the prior art, the multilayer winding drum rope disorder prevention device has the following advantages and beneficial effects: the stepping motion of the pressure rod and the rope pressing roller is controlled through the change of the curved surface of the cam, so that after the steel wire rope is subjected to layer changing, the position of the rope pressing roller can be changed at the same time, and the state of pressing the steel wire rope can be maintained all the time, thereby preventing the rope disorder phenomenon when the steel wire rope is wound; the rope pressing roller can provide enough pressure when the steel wire rope is wound on each layer, so that the large winding drum can be ensured to prevent the rope from being disordered.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:
FIG. 1 is a schematic structural view of a multi-layer spool anti-roping arrangement of the present invention;
FIG. 2 is a top view of the multi-layer spool anti-roping arrangement of FIG. 1;
fig. 3 is a schematic view of the cam curve in the multi-layer drum anti-roping apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the multilayer winding drum anti-tangling device of one embodiment of the utility model comprises a transmission set 2, a cam 3, a pressure lever 4 and a rope pressing roller 5. The transmission group 2 comprises a shell 29, a primary transmission mechanism, a secondary transmission mechanism, a tertiary transmission mechanism and a quaternary transmission mechanism, wherein as an embodiment of the utility model, the primary transmission mechanism is composed of gears 21 and a first gearwheel 22 at two sides of the winding drum 1, the winding drum 1 drives the gears 21 at two sides to rotate when rotating and drives the first gearwheel 22 to rotate to form primary transmission, and the transmission ratio of the primary transmission is set to be 1: 1; the secondary transmission mechanism is composed of a second large gear 23 as a driven part and a first small gear 24 as a driving part, the first small gear 24 is connected to the first large gear 22 through a shaft and meshed with the second large gear 23, and the transmission ratio of secondary transmission is set to be a: 1; the three-stage transmission mechanism is composed of a third large gear 25 as a driven part and a second small gear 26 as a driving part, the second small gear 26 is connected to the second large gear 23 through a shaft and meshed with the third large gear 25, and the transmission ratio of three-stage transmission is set as b: 1; the four-stage transmission mechanism is composed of a fourth large gear 27 as a driven member and a third small gear 28 as a driving member, the third small gear 28 is connected to the third large gear 25 through a shaft and meshed with the fourth large gear 27, and the transmission ratio of the four-stage transmission is set to n: 1. Where a × b is set equal to the number of windings of the wire rope on each layer of the drum 1, and n is set as the number of layers of windings of the wire rope on the drum 1.
The cam 3 is connected to the fourth gearwheel 27 by a shaft or directly welded to the fourth gearwheel 27, the rotation of which is synchronized. The pressure lever 4 is supported on the housing 29 of the drive group 2 so as to be movable back and forth, and one end of the pressure lever 4 contacts the cam curve of the cam 3 and the other end of the pressure lever 4 is connected to the rope pressing roller 5. The rotation of reel 1 drives cam 3 through transmission 2 and rotates, and along with the rotation of cam 3, depression bar 4 carries out reciprocating linear motion according to the change of cam curved surface. The cam curve of the cam 3 is designed as follows: the cam 3 is divided into n equal parts in the circumferential direction, wherein n is set as the number of winding layers of the steel wire rope on the winding drum 1 as described above, and the variation of the height of the curved surface of the cam is equal to the diameter d of the steel wire rope every 1/n rotation of the cam 3, as shown in fig. 3. Therefore, every time the cam 3 rotates for 1/n circle, the displacement of the linear motion of the cam 3 driving the pressing rod 4 is equal to the diameter d of one steel wire rope.
Specifically, according to the above configuration of the transmission set 2, when the winding drum 1 performs the rope winding operation, the winding drum 1 rotates clockwise, and the clockwise rotation of the winding drum 1 drives the cam 3 to rotate clockwise by the transmission of the gear 21, the first large gear 22, the first small gear 24, the second large gear 23, the second small gear 26, the third large gear 25, the third small gear 28, and the fourth large gear 27. When the winding drum 1 rotates a × b circles clockwise, the steel wire rope is wound on one layer of the winding drum 1, and at this time, the cam 3 is driven by the winding drum 1 through the transmission set 2 to rotate 1/n circles clockwise, that is, (a × b)/1/a/b/n is 1/n. The rope pressing roller 5 naturally moves towards the direction far away from the winding drum 1 under the action of the steel wire rope fully wound on the winding drum 1, so that the pressing rod 4 is pushed to linearly move the thickness of one layer of the steel wire rope, namely the diameter d of one steel wire rope, towards the direction far away from the winding drum 1 correspondingly, meanwhile, the cam 3 rotates clockwise for 1/n circles, the height of the curved surface of the cam is reduced by the diameter d of one steel wire rope, and therefore the displacement of the pressing rod 4 in the direction far away from the winding drum 1 due to the reduction of the height of the curved surface of the cam is equal to the displacement of the pressing rod 4 in the direction far away from the winding drum 1, which is required by the action of the steel wire rope fully wound on the winding drum 1, so that the rope pressing roller 5 is kept in contact with and presses the steel wire rope continuously under the action of the pressing rod 4. When the steel wire rope is fully wound from the first layer to the nth layer, the displacement of the pressure lever 4 which should perform linear motion in the direction away from the drum 1 due to the action of the steel wire rope fully wound on the n layers of the drum is the total thickness of the n layers of the steel wire rope, namely the diameter d (n × d) of the n steel wire ropes, and simultaneously, the cam 3 rotates clockwise for one circle, namely (a × b × n)/1/a/b/n equals 1, and the height of the cam curved surface is reduced by the diameter d (n × d) of the n steel wire ropes. Therefore, the displacement of the pressing rod 4 in the direction away from the winding drum 1 due to the height reduction of the cam curved surface is equal to the displacement of the pressing rod 4 in the direction away from the winding drum 1 due to the action of the steel wire rope fully wound on the n layers of the winding drum, so that the rope pressing roller 5 is kept in contact with and pressed against the steel wire rope under the action of the pressing rod 4.
Conversely, when the winding drum 1 performs the rope unwinding operation, the winding drum 1 rotates counterclockwise, and the counterclockwise rotation of the winding drum 1 drives the cam 3 to rotate counterclockwise through the transmission of the gear 21, the first large gear 22, the first small gear 24, the second large gear 23, the second small gear 26, the third large gear 25, the third small gear 28 and the fourth large gear 27. When the winding drum 1 rotates a times b circles anticlockwise, a layer of steel wire rope on the winding drum 1 is released, at the moment, the cam 3 is driven by the winding drum 1 through the transmission set 2 to rotate 1/n circles anticlockwise, that is, (a × b)/1/a/b/n is 1/n, the height of the cam curved surface is increased by the diameter d of one wire rope, the pressure lever 4 moves linearly in the direction close to the winding drum 1 along with the increase of the height of the cam curved surface by the diameter d of a steel wire rope, thereby pushing the rope roller 5 to linearly move a diameter d of the wire rope correspondingly toward the direction approaching the drum 1, so that the displacement of the rope pressing roller 5 moving linearly in the direction approaching the winding drum 1 is equal to the thickness of a layer of steel wire rope released from the winding drum 1, i.e. the diameter d of one steel wire rope, so that the rope pressing roller 5 is kept in contact with and pressed against the steel wire rope under the action of the pressing rod 4. The winding drum 1 continues to rotate anticlockwise, the layer changing and releasing of the steel wire rope are started, when the steel wire rope is released from the nth layer to the 1 st layer, the cam 3 rotates anticlockwise for one circle, that is, (a × b × n)/1/a/b/n is 1, the cam curve height is increased by n wire rope diameters d (n × d), the displacement of the compression bar 4 which moves linearly towards the direction close to the winding drum 1 along with the increase of the height of the cam curved surface is correspondingly equal to the diameter d (n multiplied by d) of n steel wire ropes, thereby pushing the rope roller 5 to linearly move the diameter d (n x d) of the n steel ropes correspondingly toward the direction of approaching the drum 1, so that the displacement of the rope pressing roller 5 in a linear motion toward the direction approaching the reel 1 is equal to the total thickness of the wire ropes released from the reel 1, i.e. the diameter d (n x d) of n wire ropes, so that the rope pressing roller 5 is kept in contact with and pressed against the steel wire rope under the action of the pressing rod 4.
As an embodiment of the present invention, the two-stage transmission mechanism and the three-stage transmission mechanism can be replaced by a worm transmission mechanism, which can reduce the occupied space of the transmission set while ensuring the same transmission ratio. In the case where the tertiary transmission is a worm gear, the third pinion 28 in the quaternary transmission is connected to the driven member in the tertiary transmission by a shaft.
In conclusion, the multilayer winding drum rope disorder prevention device controls the stepping motion of the pressure rod and the rope pressing roller through the curve surface change of the cam, so that the position of the rope pressing roller can synchronously change simultaneously after the steel wire rope is changed, the state of pressing the steel wire rope can be always maintained, and the rope disorder phenomenon when the steel wire rope is wound is prevented. Moreover, the multi-layer winding drum rope disorder prevention device adopts a pure mechanical structure, no external force is needed, and the rope pressing roller can provide enough pressure when the steel wire rope is wound or released in each layer, so that the large winding drum can be ensured to prevent the rope disorder phenomenon.
It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. The utility model provides a rope disorderly device is prevented to multilayer reel, its characterized in that, rope disorderly device is prevented to multilayer reel includes transmission group, cam, depression bar, rope pressing roller, wherein:
the transmission group comprises a shell, a first-stage transmission mechanism, a second-stage transmission mechanism, a third-stage transmission mechanism and a fourth-stage transmission mechanism, wherein: the primary transmission mechanism is composed of gears on two sides of the winding drum and a first large gear, and the transmission ratio of the primary transmission mechanism is set to be 1: 1; a driving part of the secondary transmission mechanism is connected to the first gearwheel and is meshed with a driven part of the secondary transmission mechanism, and the transmission ratio of the secondary transmission mechanism is set to a: 1; the driving part of the third-stage transmission mechanism is connected to the driven part of the second-stage transmission mechanism and meshed with the driven part of the third-stage transmission mechanism, and the transmission ratio of the third-stage transmission mechanism is set as b: 1; the driving part of the four-stage transmission mechanism is connected to the driven part of the three-stage transmission mechanism and meshed with the driven part of the four-stage transmission mechanism, the transmission ratio of the four-stage transmission mechanism is set to be n:1, wherein a multiplied by b is set to be equal to the number of winding turns of the steel wire rope on each layer of the winding drum, and n is set to be the number of winding layers of the steel wire rope on the winding drum;
the cam is connected to a driven piece of the four-stage transmission mechanism, the pressure lever is connected to the shell, one end of the pressure lever contacts with a cam curved surface of the cam, the other end of the pressure lever is connected to the rope pressing roller, and the winding drum drives the cam to rotate through the transmission set;
the cam curved surface of the cam is designed as follows: the cam is divided into n equal parts in the circumferential direction, wherein n is the number of winding layers of the steel wire rope on the winding drum, and the variation of the height of the curved surface of the cam is equal to the diameter of the steel wire rope every time the cam rotates for 1/n circle.
2. The multi-layer spool anti-roping arrangement of claim 1, wherein the cam is connected to the follower of the four stage drive mechanism by a shaft or is welded directly to the follower of the four stage drive mechanism.
3. The multilayer winding drum anti-tangling device according to claim 1, wherein a driving member of the secondary transmission mechanism is a first small gear, a driven member of the secondary transmission mechanism is a second large gear, and the first small gear is connected to the first large gear through a shaft and meshed with the second large gear; the driving part of the three-stage transmission mechanism is a second small gear, the driven part of the three-stage transmission mechanism is a third large gear, and the second small gear is connected to the second large gear through a shaft and is meshed with the third large gear; the driving part of the four-stage transmission mechanism is a third small gear, the driven part of the four-stage transmission mechanism is a fourth large gear, and the third small gear is connected to the third large gear through a shaft and is meshed with the fourth large gear; the cam is connected to the fourth gearwheel by a shaft or is directly welded to the fourth gearwheel.
4. The multi-layer spool anti-roping arrangement of claim 1, wherein the secondary drive and the tertiary drive are replaced with worm drives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123386355.3U CN216807922U (en) | 2021-12-29 | 2021-12-29 | Rope disorder prevention device for multilayer winding drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123386355.3U CN216807922U (en) | 2021-12-29 | 2021-12-29 | Rope disorder prevention device for multilayer winding drum |
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| Publication Number | Publication Date |
|---|---|
| CN216807922U true CN216807922U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123386355.3U Active CN216807922U (en) | 2021-12-29 | 2021-12-29 | Rope disorder prevention device for multilayer winding drum |
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|---|---|
| CN (1) | CN216807922U (en) |
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2021
- 2021-12-29 CN CN202123386355.3U patent/CN216807922U/en active Active
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