CN211769977U

CN211769977U - Winding drum

Info

Publication number: CN211769977U
Application number: CN201922402187.9U
Authority: CN
Inventors: 何田生; 孙荣生; 赵盼; 陈鹏飞
Original assignee: Shanghai Yiliang Electronic Technology Co ltd
Current assignee: Shanghai Yiliang Electronic Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-27
Anticipated expiration: 2029-12-27

Abstract

The utility model provides a reel, the wire rope of being particularly suitable for minor diameter reel is convoluteed, under the condition that need not the counter weight, realizes wire rope's normal business turn over, can not produce the phenomenon that the wire rope card is dead, in disorder. The winding drum comprises an inner drum and a rope pressing mechanism, wherein the surface of the inner drum is provided with a threaded rope groove, the threaded rope groove is used for winding a steel wire rope, and the groove width of the threaded rope groove is matched with the diameter of the steel wire rope; the rope pressing mechanism comprises a cylinder cover and a base, and the cylinder cover is sleeved outside the inner cylinder and used for pressing the steel wire rope; the distance between the cylinder cover and the inner cylinder is smaller than the radius of the steel wire rope; the cylinder cover is provided with an opening, and the steel wire rope penetrates through the opening to be retracted and lowered; the base is arranged at two ends of the cylinder cover, and the cylinder cover can freely rotate relative to the base. The winding drum can solve the problems of rope jumping, rope biting and rope disorder in the hoisting and falling processes of the steel wire rope, and cannot expand when the steel wire rope is recovered.

Description

Winding drum

Technical Field

The utility model relates to a reel, in particular to minor diameter reel for twining wire rope.

Background

In the prior art, in order to avoid overlarge resilience force generated by over-small curvature radius when a steel wire rope is wound, the diameter of a winding drum is often increased when the steel wire rope is designed and the resilience force of the steel wire rope is reduced. However, such large diameter drums are not usable in space-constrained applications. In addition, in the conventional measures for preventing the disorder of the drum winding, a certain tension must be applied to the free end of the wire rope regardless of vertical winding (hoisting) or horizontal winding (horizontal hoisting pulling).

The fixing mechanism, the rope pressing mechanism and the detection mechanism of the existing winding drum are mostly applied to large-diameter winding drums such as crane winding drums, travelling cranes and the like, and in the field of small-diameter winding drums, the three mechanisms all belong to the vacancy. The small-diameter winding drum has a small diameter, and the curvature radius of the steel wire rope is large, so that great elastic tension can be generated; by adopting a common steel wire rope fixing mode, the problems of difficult locking and fixing, easy expansion and slippage can occur due to the existence of elastic tension.

In addition, in the hoisting and lowering processes, the conditions of groove skipping and rope biting and disorder are easily caused due to the elastic tension of the steel wire rope or the weight loss state of the steel wire rope. After the conditions of rope biting and rope disorder of a steel wire rope in a groove jump occur, due to the lack of a corresponding detection mechanism, a fault cannot be found at the first time, and the alarm and the rope rearrangement are timely carried out. The fault condition is easily worsened, and the damage of the whole hoisting equipment can be seriously caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a reel, the wire rope of being particularly suitable for minor diameter reel is convoluteed, under the condition that need not the counter weight, realizes wire rope's normal business turn over. The winding drum comprises an inner drum and a rope pressing mechanism. The inner barrel surface has the screw thread grooving, and the screw thread grooving is used for twining wire rope, and the groove width of screw thread grooving matches with wire rope's diameter, and it is one wire rope that each screw thread inslot allows to hold, and the winding can not be repeated. The head part of the steel wire rope is fixed at one end of the inner cylinder, and the tail part of the steel wire rope can be connected with a heavy object; the rope pressing mechanism comprises a cylinder cover and a base, the cylinder cover is sleeved outside the inner cylinder, and when the steel wire rope is wound on the surface of the inner cylinder, the cylinder cover is positioned outside the inner cylinder and the steel wire rope and used for pressing or compressing the steel wire rope; the distance between the cylinder cover and the inner cylinder is smaller than the radius of the steel wire rope, and the distance can be about 1mm generally; the drum cover has an opening through which the wire rope passes when entering or leaving the drum, thereby effecting take-up and pay-down. The base is arranged at two ends of the cylinder cover, and the cylinder cover can freely rotate relative to the base.

By arranging the rope pressing mechanism outside the inner cylinder, the phenomena of groove skipping and rope biting and rope disorder in the hoisting and falling processes of the steel wire rope can be solved without counterweight, and the steel wire rope cannot expand when reversely rotated and recovered; meanwhile, the cylinder cover can rotate freely, so that even if the steel wire rope is tightly attached to the cylinder cover, the steel wire rope cannot be clamped and immobilized, and the steel wire rope can smoothly enter and exit. Compared with the common steel wire rope reel, under the working condition that the space is limited and only a small-diameter reel can be adopted, the steel wire rope cannot be wound disorderly due to overlarge resilience force of the steel wire rope when being wound on the inner barrel by adopting the technical scheme; under the working condition that the steel wire rope is horizontally wound by the winding drum, the steel wire rope can be prevented from being wound disorderly due to the fact that no tension force exists.

Further, the reel includes fixed establishment, and fixed establishment includes the notch, and the notch sets up on the inner tube, with screw thread grooving intercommunication, be used for placing wire rope's head, the bore of notch reduces along going out the rope direction gradually. By adopting the technical scheme, the copper head at the head part of the steel wire rope is placed into the notch together, and the steel wire rope is not easy to slip from the notch due to the structure that the notch is wide in front and narrow in back.

Further, the fixing mechanism comprises a pressing block, and the pressing block is arranged on the notch to fix the head of the steel wire rope. By adopting the technical scheme, the steel wire rope is convenient to compress, the expansion and the slippage are not easy to generate, and the disassembly and the maintenance are convenient in the future.

Furthermore, the pressing block is connected with the inner barrel through the bolt, so that the problems that the steel wire rope is not easy to fix on a small-diameter winding drum and is easy to expand and slip are solved.

Further, the reel includes detection mechanism, detection mechanism includes shifting block, slide shaft, and travel switch. The shifting block can reciprocate along the axial direction of the inner cylinder; the sliding shaft is arranged along the axial direction of the inner cylinder and penetrates through the shifting block; the travel switches comprise a left travel switch and a right travel switch, the left travel switch and the right travel switch are respectively positioned at two ends of the inner barrel, when the steel wire rope is completely lowered, the shifting block touches the left travel switch, and when the steel wire rope is completely fully retracted, the shifting block touches the right travel switch. By adopting the technical scheme, the shifting block can move on the sliding shaft along with the retraction or the transfer of the steel wire rope, so that the problem of how to judge when the steel wire rope is placed to the head and when the steel wire rope is received is solved, and the phenomenon of rope disorder caused by too much transfer or too full recovery can not occur.

Further, a linear bearing is arranged in the shifting block to ensure that the shifting block can smoothly reciprocate on the sliding shaft.

Furthermore, the sliding shaft comprises a first sliding shaft and a second sliding shaft which are arranged in parallel, and two ends of the first sliding shaft and two ends of the second sliding shaft are connected to the base respectively. By adopting the technical scheme, the first sliding shaft and the second sliding shaft both penetrate through the shifting block, so that the shifting block is ensured to move along a straight line.

Furthermore, the detection mechanism comprises a contact piece, one end of the contact piece is connected with the shifting block, the other end of the contact piece extends into the threaded rope groove, and when the inner cylinder rotates, the contact piece can drive the shifting block to reciprocate on the sliding shaft under the driving of the inner cylinder. The contact piece is positioned at the most downstream part of the steel wire rope to be placed on the inner barrel, namely the steel wire rope just leaves or enters the threaded rope groove of the winding drum. When the steel wire rope is completely fully retracted, the contact piece is located at the rightmost end of the threaded rope groove, the contact piece drives the shifting block to move leftwards in the lowering process of the steel wire rope, and when the contact piece reaches the leftmost end of the threaded rope groove, the steel wire rope is completely lowered. By adopting the structure, the position of the steel wire rope can be conveniently and directly judged.

Further, detection mechanism includes middle travel switch, and middle travel switch has the corner plectrum, and the corner plectrum is equipped with the waist hole, and wire rope can pass the waist hole. By adopting the technical scheme, when the steel wire rope is installed, the steel wire rope passes through the waist hole of the corner shifting piece, the steel wire rope generates a rope disorder phenomenon due to weightlessness or other reasons in the hoisting and lowering processes, and the middle travel switch can detect the abnormal change of the steel wire rope through the movement of the corner shifting piece.

Furthermore, the middle travel switch is provided with a sensor and an alarm, the sensor is connected with the corner plectrum, and the alarm gives an alarm after the sensor detects that the corner plectrum moves to a preset angle. For example, when the steel wire rope is weightless due to the fact that the steel wire rope touches an obstacle and the lifting space is too small, the steel wire rope can be bent and is not vertical any more, so that the corner shifting piece is pushed to move. At the moment, the sensor detects the movement of the corner plectrum, so that the disorder of the steel wire rope is detected, and the alarm prompts a fault alarm and feeds the fault alarm back to an operator. The operator can then stop the operation and troubleshoot the fault.

The technical scheme can be arranged and combined randomly.

The beneficial effects of the utility model reside in that:

1) the rope pressing mechanism of the utility model prevents the wire rope from generating groove jumping and rope biting in the hoisting and lowering processes, and the situation that the wire rope is blocked and can not be pulled can not occur; the steel wire rope cannot expand when being recovered, and the recovery is smooth; the steel wire rope can normally enter and exit without counterweight, and the function of protecting the steel wire rope is achieved;

2) the fixing mechanism of the utility model can compress the steel wire rope, is not easy to expand and slip, and is convenient to disassemble and maintain the steel wire rope in the future;

3) the detection mechanism of the utility model can detect whether the steel wire rope is put on the head or not in the using process; meanwhile, the fault of weight loss and rope disorder of the steel wire rope in the hoisting and falling processes can be detected, and the alarm can be fed back in time.

Drawings

Fig. 1 is a perspective view of a reel according to an embodiment of the present invention;

fig. 2 is a schematic view of a rope pressing mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a fixing mechanism according to an embodiment of the present invention;

fig. 4 is a schematic view of a detection mechanism according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a middle position switch according to an embodiment of the present invention.

Reference numerals:

1 winding drum

10, an inner barrel; 11 a steel wire rope; 12 thread rope grooves;

20, a rope pressing mechanism; 21 a cylinder cover; 22 base

30 a fixing mechanism; 31 notches; 32 briquetting

40, a detection mechanism:

41 shifting blocks; 411 contact strip

42 a slide shaft; 421 a first sliding shaft; 422 second sliding shaft

43 travel switches; 431 left travel switch; 432 right travel switch; 433 middle travel switch;

44 corner plectrum; 441 kidney holes.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to only those embodiments. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Furthermore, some of the specific details are omitted from the description so as not to obscure or obscure the present invention.

The terms "left" and "right" used in the following description should not be construed as limiting the present invention.

Fig. 1 shows a reel 1, an inner bag barrel 10 and a rope pressing mechanism 20 according to an embodiment of the present invention. Referring to fig. 2, the inner cylinder 10 has a threaded groove 12 on the surface, the threaded groove 12 is used for winding the steel cable 11, and the groove width of the threaded groove 12 matches the diameter of the steel cable 11, i.e. each threaded groove allows one steel cable to be accommodated and cannot be wound repeatedly. The head of the steel wire rope 11 is fixed at one end of the inner cylinder 10, and the tail of the steel wire rope 11 can be connected with a heavy object; the cord pressing mechanism 20 includes a barrel cover 21 and a base 22. The cylinder cover 21 is sleeved outside the inner cylinder 10, in this embodiment, the steel wire rope 11 is wound on the surface of the inner cylinder 10, and the cylinder cover 21 is located outside the inner cylinder 10 and the steel wire rope 11 and used for compressing the steel wire rope 11. The distance between the drum cover 21 and the inner drum 10 is smaller than the radius of the wire rope 11, and in the present embodiment, the distance is 1mm, for example. And the cover 21 has at least one opening through which the wire rope 11 passes when entering or leaving the reel 1, thereby enabling take-up and lowering. The bases 22 are provided at both ends of the cartridge cover 21, and the cartridge cover 21 is freely rotatable with respect to the bases 22.

The cylinder cover 21 does not have to be a cylindrical structure, but may be a semi-enclosed cylindrical surface, a polygonal structure, or even a structure composed of a plurality of rods. As shown in fig. 1 or 2, the cover 21 formed of a rod may be regarded as a virtual cylindrical body as long as the wire rope 11 can be pressed and freely rotated with respect to the base 22 so that the wire rope 11 can smoothly enter and exit the drum. In some embodiments, a bearing is provided between the base 22 and the cartridge cover 21, and the bearing is used for smoothly rotating the cartridge cover 21.

The expression "steel cord" is also not used in this application to limit the material of the cord structure to be wound, but to indicate a type of cord structure having a certain elasticity, limited curvature and thus a certain obstacle to winding on a small diameter drum. Therefore, the structure of the present invention can also be used for winding other types of rope structures that meet the above conditions, but are not wire ropes.

By arranging the rope pressing mechanism 20 outside the inner cylinder 10, the phenomena of groove jumping, rope biting and rope disorder in the hoisting and falling processes of the steel wire rope 11 can be solved without counterweight, and the steel wire rope 11 cannot expand when being recovered; meanwhile, as the cylinder cover 21 can rotate freely, even if the steel wire rope is tightly attached to the cylinder cover 21, the phenomenon of clamping and immobility cannot occur, and the steel wire rope can smoothly enter and exit. Compared with the common steel wire rope inner barrel, under the working condition that the space is limited and only a small-diameter winding drum can be adopted, the steel wire rope cannot be wound disorderly due to overlarge resilience force when being wound on the inner barrel 10 by adopting the technical scheme; under the working condition that the inner barrel 10 horizontally winds the steel wire rope, the steel wire rope can be prevented from being entangled due to the fact that no tension force exists.

As shown in fig. 1, 2 and 3, in an embodiment of the present invention, the winding drum 1 further includes a fixing mechanism 30, and the fixing mechanism 30 is used for fixing the steel wire rope, so as to facilitate the winding of the steel wire rope on the inner drum 10. In an embodiment of the present invention, the fixing mechanism 30 includes a notch 31, the notch 31 is disposed on the inner barrel 10 and communicated with the threaded groove 12, and the diameter of the notch 31 is gradually reduced along the rope outlet direction. By adopting the technical scheme, the copper head at the head of the steel wire rope 11 is placed into the notch 31 together, and the steel wire rope 11 is not easy to slip from the notch 31 due to the structure that the front part of the notch 31 is wide and the rear part of the notch is narrow. Of course, the utility model discloses a fixed establishment is not limited to this, according to the utility model provides a reel structure, can realize fixed wire rope and make the structure of the difficult slippage of wire rope all belong to the fixed establishment that this application was said.

With continued reference to fig. 3, in an embodiment of the present invention, the fixing mechanism 30 further includes a pressing block 32, and the pressing block 32 is located in the notch 31 to fix the head of the steel wire rope 11. By adopting the technical scheme, the steel wire rope is convenient to compress, the expansion and the slippage are not easy to generate, and the disassembly and the maintenance are convenient in the future. The shape of the pressing block of the present invention is not limited to the shape shown in fig. 3, and of course, the pressing block may not be used in other embodiments. Optionally, the pressing block 32 may be connected to the inner cylinder 10 by bolts, so as to solve the problem that the steel wire rope is not easily fixed on the small-diameter inner cylinder 10 and is easily expanded and slipped. The connection between the pressing block 32 and the inner cylinder 10 is not limited to the use of bolts, and may include any other connection means that can press the pressing block 32 against the string end and fix the pressing block 32.

In an embodiment of the present invention, the winding drum 1 may further include a detection mechanism 40, and with reference to fig. 1 and 4, the detection mechanism 40 includes a shifting block 41, a sliding shaft 42, and a travel switch 43. The shifting block 41 can reciprocate along the axial direction of the inner cylinder 10; the sliding shaft 42 is arranged along the axial direction of the inner cylinder 10 and penetrates through the shifting block 41; the travel switch 43 comprises a left travel switch 431 and a right travel switch 432, the left travel switch 431 and the right travel switch 432 are respectively positioned at two ends of the inner barrel 10, when the steel wire rope 11 is completely lowered, the shifting block 41 touches the left travel switch 431, and when the steel wire rope 11 is completely fully retracted, the shifting block 41 touches the right travel switch 432. By arranging the travel switches 43 at the two ends of the inner cylinder 10 and arranging the shifting block 41 in the middle, the shifting block 41 can detect the position of the steel wire rope and move on the sliding shaft 42 along with the retraction or the lowering of the steel wire rope, so that the problem of judging when the steel wire rope 11 is retracted and released is solved. The rope disorder phenomenon caused by excessive lowering or excessive recovery can not occur by adopting the technical scheme.

In a preferred embodiment of the present invention, a linear bearing (not shown) may be disposed in the shifting block 41 to ensure that the shifting block 41 smoothly reciprocates on the sliding shaft 42. The material of the linear bearing may be copper, graphite, and nodular cast iron, or other mechanisms that facilitate the sliding of the shifting block 41 on the sliding shaft 42, which is not limited in this application. The utility model discloses other modes that reduce shifting block 41 and sliding shaft 42 frictional force can also be adopted to make the motion smooth and easy, for example enlarge the trompil that shifting block 41 passed sliding shaft 42 position department, and this is easily realized in this field, no longer explains repeatedly.

As shown in fig. 1 and 4, the sliding shaft 42 includes a first sliding shaft 421 and a second sliding shaft 422 that are parallel to each other, and both ends of the first sliding shaft 421 and the second sliding shaft 422 are respectively connected to the base 22. With the adoption of the technical scheme, the first sliding shaft 421 and the second sliding shaft 422 both penetrate through the shifting block 41, so that the shifting block 41 is ensured to move along a straight line.

Preferably, the detecting mechanism 40 further includes a contact piece 411, one end of the contact piece 411 is connected to the shifting block 41, and the other end is embedded in the threaded rope groove 12, and the contact piece 411 is used for driving the shifting block 41 to reciprocate on the sliding shaft 42 when the inner cylinder 10 rotates. The contact piece 411 is located on the inner drum 10 at the most downstream of the wire rope 11 to be lowered, i.e., at the position where the contact piece 411 goes, the wire rope 11 is just lowered away from the inner drum 10. When the steel wire rope 11 is completely fully retracted, the contact piece 411 is located at the rightmost end of the threaded rope groove 12, in the lowering process of the steel wire rope 11, the contact piece 411 drives the shifting block 41 to move leftwards, and when the contact piece 411 reaches the leftmost end of the threaded rope groove 12, the steel wire rope 11 is completely lowered. By adopting the structure, the position of the steel wire rope 11 can be conveniently and directly judged.

Referring to fig. 1 and 5, in any embodiment of the present invention, the winding drum 1 may further include a middle travel switch 433, the middle travel switch 433 has a corner shifting piece 44, the corner shifting piece 44 is provided with a waist hole 441, and when the winding drum is in operation, the steel wire rope 11 passes through the waist hole 441. In this embodiment, when the steel wire rope 11 passes through the waist hole 441 of the corner shifting piece 44 during installation, if the steel wire rope 11 is in a rope disorder phenomenon due to weightlessness or other reasons during hoisting and lowering, the middle stroke switch 433 can detect an abnormal change of the steel wire rope 11 through the movement of the corner shifting piece 44.

Preferably, the middle travel switch 433 is provided with a sensor and an alarm, the sensor is connected with the corner poking piece 44, and the alarm gives an alarm when the sensor detects that the corner poking piece 44 moves to a preset angle. For example, when the wire rope 11 loses weight due to a collision with an obstacle, an excessively small hoisting space, and the like, the wire rope 11 bends and is not perpendicular any more, and thus the corner shifting piece 44 is pushed to move the corner shifting piece 44. At the moment, the sensor detects the movement of the corner poking piece 44, so that the disorder of the steel wire rope is detected, and the alarm prompts a fault alarm to feed back to an operator. The operator can then stop the operation and troubleshoot the fault.

Any permutation and combination of the above embodiments is within the scope of the present application.

To sum up, the above embodiments provided by the present invention are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A winding drum is characterized by comprising an inner drum and a rope pressing mechanism,

the surface of the inner barrel is provided with a threaded rope groove, the threaded rope groove is used for winding a steel wire rope, and the groove width of the threaded rope groove is matched with the diameter of the steel wire rope;

the rope pressing mechanism comprises:

the cylinder cover is arranged outside the inner cylinder and used for compressing the steel wire rope, the distance between the cylinder cover and the inner cylinder is smaller than the radius of the steel wire rope, the cylinder cover is provided with an opening, and the steel wire rope penetrates through the opening to be retracted and lowered;

the base sets up the both ends of cover, the cover can for the base rotates.

2. The spool as claimed in claim 1, wherein the spool includes a fixing mechanism, the fixing mechanism includes a notch, the notch is disposed on the inner cylinder, communicates with the threaded rope groove, and is used for placing a head of a steel wire rope, and an aperture of the notch is gradually reduced along a rope outlet direction.

3. The spool as claimed in claim 2, wherein said securing means includes a press block disposed in said slot for securing the head of said cable.

4. The spool as claimed in claim 3, characterized in that said pressure piece is connected to said inner cylinder by means of bolts.

5. The spool as claimed in claim 1, characterized in that it comprises a detection mechanism comprising:

the shifting block can reciprocate along the axial direction of the inner cylinder;

the sliding shaft is arranged along the axial direction of the inner cylinder and penetrates through the shifting block;

travel switches comprise a left travel switch and a right travel switch, wherein the left travel switch and the right travel switch are respectively positioned at two ends of the inner barrel, when the steel wire rope is completely lowered, the shifting block touches the left travel switch, and when the steel wire rope is completely fully retracted, the shifting block touches the right travel switch.

6. The spool as claimed in claim 5, characterized in that a linear bearing is provided in the pick.

7. The reel of claim 5, wherein the sliding shaft comprises a first sliding shaft and a second sliding shaft arranged in parallel with each other, and both ends of the first sliding shaft and the second sliding shaft are respectively connected to the base.

8. The reel of claim 5, wherein the detection mechanism comprises a contact piece, one end of the contact piece is connected with the shifting block, the other end of the contact piece extends into the threaded rope groove, and when the inner cylinder rotates, the contact piece can drive the shifting block to reciprocate on the sliding shaft under the driving of the inner cylinder.

9. The winding drum as claimed in any one of claims 5 to 8, wherein the detection mechanism comprises a middle travel switch, the middle travel switch is provided with a corner shifting piece, a waist hole is formed in the corner shifting piece, and a steel wire rope can pass through the waist hole.

10. The spool as claimed in claim 9, characterized in that the intermediate travel switch has a sensor and an alarm, the sensor is connected with the corner paddle, and the alarm gives an alarm when the sensor detects that the corner paddle moves to a preset angle.