CN109867220B - Double-roller motorized wringing mill non-return device and control method thereof - Google Patents
Double-roller motorized wringing mill non-return device and control method thereof Download PDFInfo
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- CN109867220B CN109867220B CN201910181883.3A CN201910181883A CN109867220B CN 109867220 B CN109867220 B CN 109867220B CN 201910181883 A CN201910181883 A CN 201910181883A CN 109867220 B CN109867220 B CN 109867220B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000006866 deterioration Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model provides a motorized hank of twin-roll grinds contrary device and control method thereof, includes first initiative cylinder, second driven cylinder and little driven cylinder group, and the inside ratchet that is equipped with of second driven cylinder, ratchet and second driven cylinder fixed connection, and the ratchet both sides are equipped with assorted pawl, little driven cylinder group is two driven cylinder groups that set up from top to bottom, and the top is the movable driven cylinder, and the below is fixed driven cylinder, be equipped with the ratchet in two driven cylinder groups, prevented hank and ground the deterioration of rope running and grinding phenomenon, guaranteed the safety of lifting and hanging piece in the iron tower assembly process.
Description
Technical Field
The invention relates to the technical field of a twisting and grinding device, in particular to a double-roller motorized twisting and grinding non-return device and a control method thereof.
Background
The double-drum type winch is a mobile winch equipment which is designed for electric power construction, line construction, vertical rod, vertical tower, wire erection and general site engineering construction and is convenient to move, is an ideal tool for moving and lifting heavy objects, and the existing electric power overhead line construction field still adopts a single-drum mobile winch, so that the potential safety hazard can not be comprehensively solved.
Disclosure of Invention
The invention mainly aims to provide a double-roller motorized winch non-return device and a control method thereof, which solve the problem of running and grinding when a heavy object moves.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a motorized hank of twin drum grinds contrary device and control method thereof, includes first initiative cylinder, second driven cylinder and little driven cylinder group, and the inside ratchet that is equipped with of second driven cylinder, ratchet and second driven cylinder fixed connection, ratchet both sides are equipped with assorted pawl, little driven cylinder group is two driven cylinder groups that set up from top to bottom, and the top is the movable driven cylinder, and the below is fixed driven cylinder, be equipped with the ratchet in two driven cylinder groups, ratchet both sides are equipped with assorted pawl.
In the preferred scheme, a spring is arranged between the movable driven roller and the fixed driven roller, and the spring connects the fixed driven roller and the movable driven roller.
In the preferred scheme, movable driven roller and fixed driven roller are installed on the mount, and open the mount upside has the opening, movable driven roller's axis of rotation is installed in the opening, is equipped with the regulation handle in the axis of rotation, and the regulation handle passes through the regulating spindle and installs on the mount.
In the preferred scheme, one end of the adjusting handle is provided with a waist-shaped hole, the rotating shaft is inserted into the waist-shaped hole, and the other end of the adjusting handle is a handheld adjusting part.
In a preferred scheme, in the small driven roller group, the outer surface of the movable driven roller and the outer surfaces of the first driving roller and the second driven roller are arranged on the same level.
The control method comprises the following steps: 1) Lifting ropes are wound on the outer surfaces of the first driving roller and the second driven roller, and the ropes are wound anticlockwise when seen from left to right according to the rope feeding direction, and the ropes on the first driving roller are wound anticlockwise until the second driven roller is wound anticlockwise;
2) Winding the first driving roller and the second driven roller for a plurality of times, then tightening the steel wire rope, and lifting the weight from the rope of the second driven roller through the small driven roller group;
3) When the rope passes through the small driven roller group, the movable driven roller is lifted up by the adjusting handle, the rope passes through a gap of the small driven roller group, and when the adjusting handle is loosened, the movable driven roller and the fixed driven roller mutually clamp the rope through the spring.
The invention provides a double-roller motorized winch backstop device and a control method thereof, which are used for comprehensively changing the phenomenon of old skidding of winch ropes under the condition that the double-roller motorized winch is used in the traditional tower assembly or overhead construction process in the aspect of safety coefficient of motorized winch in the process of lifting heavy objects. When the first driving roller runs and grinds, the weight falls down, the rope moves reversely to drive the second driven roller to rotate reversely, the second driven roller rotates reversely to stop reversely, and the rope speed is reduced to be V 1 Meanwhile, the rope moving reversely drives the small driven roller group to reversely stop, and the speed of the rope is further reduced to be V 2 Due to V 1 >V 2 The ropes on both sides of the second driven roller form a speed difference, so that the ropes are tightly wound on the second driven roller, and the rope and the surface of the roller are increasedThe contact area is more than 80%, friction force is increased, the rope is wound on the roller and cannot slide any more, the deterioration of the rope running and grinding phenomenon of the winch is prevented, meanwhile, the response time of the whole process is not more than 0.5s, the safety of lifting and hanging pieces in the iron tower assembling process is guaranteed, meanwhile, the safety risk of rope grinding personnel is controlled after the winch is reduced, the safety coefficient in the iron tower assembling or wire tightening construction is greatly improved after the double-roller motorized winch is used later, the safety of the lifting and hanging pieces in the iron tower assembling or wire tightening construction process is guaranteed, the number of the rope grinding personnel is reduced after the motorized winch, and the safety risk of the rope grinding personnel is reduced. In actual operation, the traction force on the rope is mainly borne by the first driving roller, and the second driven roller bears the traction force of the rope only when running and grinding occur, so that the second driven roller has less abrasion in normal operation and can be used for a long time.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic diagram of a twin drum motorized wringing check device and method of controlling the same in accordance with the present invention;
FIG. 2 is a left side view of the structure of the present invention;
FIG. 3 is a block diagram of a driven roller set according to the present invention;
FIG. 4 is a view showing the construction of the adjustment handle of the driven roller set according to the present invention;
FIG. 5 is a front view of the driven roller set of the present invention;
in the figure: a first active roller 1; a second driven roller 2; a small driven roller group 3; a movable driven roller 31; a spring 32; a fixed driven roller 33; a holder 34; a rotation shaft 35; an adjustment shaft 36; a rope 4; a support 5; a base 6; adjusting the handle 7; a ratchet wheel 8; a pawl 9.
Detailed Description
As shown in fig. 1-5, a dual-roller motorized winch backstop device and a control method thereof, the dual-roller motorized winch backstop device comprises a first driving roller 1, a second driven roller 2 and a small driven roller group 3, wherein a ratchet wheel 8 is arranged in the second driven roller 2, the ratchet wheel 8 is fixedly connected with the second driven roller 2, two sides of the ratchet wheel 8 are provided with matched pawls 9, the small driven roller group 3 is a two driven roller groups arranged up and down, a movable driven roller 31 is arranged above the small driven roller group, a fixed driven roller 33 is arranged below the small driven roller group, the ratchet wheel 8 is arranged in the two driven roller groups, two sides of the ratchet wheel 8 are provided with matched pawls 9, and therefore, the structure is that the ratchet wheel 8 and the matched pawls 9 are arranged in the second driven roller 2, and in terms of safety coefficient in the lifting process of motorized winch, especially, under the condition that dual-roller motorized winch is used in the traditional tower assembly or overhead construction process, the phenomenon of the winch rope is slipped is comprehensively changed. When the first driving roller 1 runs and grinds, the heavy object drops, and the rope moves reversely to drive the second driven roller 2 to rotate reversely, and the second driven roller rotates reversely to stop, meanwhile, the ratchet wheel 8 and the matched pawl 9 are also arranged in the small driven roller group 3, and the effect of preventing the rotation is also achieved.
In a preferred scheme, a spring 32 is arranged between the movable driven roller 31 and the fixed driven roller 33, and the spring 32 connects the fixed driven roller 33 and the movable driven roller 31, so that the rope 4 can be accommodated in the middle to pass through the structure, and the structure is always in a clamping state.
In the preferred scheme, the movable driven roller 31 and the fixed driven roller 33 are arranged on a fixed frame 34, an opening is formed in the upper side of the fixed frame 34, a rotating shaft 35 of the movable driven roller 31 is arranged in the opening, an adjusting handle 7 is arranged on the rotating shaft 35, and the adjusting handle 7 is arranged on the fixed frame 34 through an adjusting shaft 36, so that the movable driven roller 31 can be lifted up by the adjusting handle 7, and a rope 4 can pass through the opening.
In the preferred scheme, one end of the adjusting handle 7 is provided with a waist-shaped hole, the rotating shaft 35 is inserted into the waist-shaped hole, and the other end of the adjusting handle 7 is a handheld adjusting part, so that the waist-shaped hole can enable the rotating shaft 35 to move.
In a preferred embodiment, in the small driven roller group 3, the outer surface of the movable driven roller 31 and the outer surfaces of the first driving roller 1 and the second driven roller 2 are arranged on the same level, so that ropes can be better installed, and running can be better prevented.
In a preferred embodiment, the method comprises: the outer surfaces of the first driving roller 1 and the second driven roller 2 are wound with hoisting ropes 4, the ropes 4 are wound anticlockwise when seen from left to right according to the rope feeding direction, and the ropes 4 on the first driving roller 1 are wound anticlockwise until the second driven roller 2 is wound anticlockwise;
the steel wire rope is tightened after being wound on the first driving roller 1 and the second driven roller 2 for a plurality of times, and the rope 4 of the second driven roller 2 passes through the small driven roller group 3 to lift the weight;
when the rope 4 passes through the small driven roller group 3, the movable driven roller 31 is lifted up by the adjusting handle 7, the rope 4 passes through the slit of the small driven roller group 3, and when the adjusting handle 7 is released, the movable driven roller 31 and the fixed driven roller 33 clamp the rope 4 with each other by the spring 32.
In use, the surfaces of the first driving roller 1 and the second driven roller 2 are wound with lifting ropes 4, the lifting ropes are wound from bottom to top according to the rope feeding direction, the ropes 4 are wound anticlockwise after the ropes are wound from 4 to 5 circles near the box body end, the ropes 4 can be lifted by the aid of heavy objects after penetrating into the middle of the small driven roller group 3, the first driving roller and the second driven roller 2 are placed in parallel and are horizontally spaced from the small driven roller group 3, the dragging direction of a grinding rope control personnel is kept in the same direction as the tail rope outlet, the number of ground anchors is not less than two, the fixation of grinding is an important section of safe operation, the ground anchors are not neglected, the ground anchors are not less than two and are required to be firmly and reliably arranged before use, the first driving roller, the second ratchet driven roller and the small ratchet driven roller are not required to be changed, if the ground anchors are soft and the rollers are required to be reinforced, the ground anchors and the rollers are required to be perpendicular to the pulley block when the drums are wound and tensioned, meanwhile, if the ground anchors are required to move towards other directions when the ground is required to be stressed, if the ground anchors are required to be moved, the anchor rope is required to be adjusted to be larger than the total cross section area of the steel wire rope.
The above embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (1)
1. A control method of a double-roller motor-driven twisting and grinding non-return device comprises a first driving roller (1), a second driven roller (2) and a small driven roller group (3), wherein a ratchet wheel (8) is arranged in the second driven roller (2), the ratchet wheel (8) is fixedly connected with the second driven roller (2), two sides of the ratchet wheel (8) are provided with matched pawls (9), the small driven roller group (3) is two driven roller groups which are arranged up and down, the upper part is a movable driven roller (31), the lower part is a fixed driven roller (33), and the two driven roller groups are provided with ratchet wheels (8);
a spring (32) is arranged between the movable driven roller (31) and the fixed driven roller (33), and the spring (32) connects the fixed driven roller (33) with the movable driven roller (31);
the movable driven roller (31) and the fixed driven roller (33) are arranged on a fixed frame (34), an opening is formed in the upper side of the fixed frame (34), a rotating shaft (35) of the movable driven roller (31) is arranged in the opening, an adjusting handle (7) is arranged on the rotating shaft (35), and the adjusting handle (7) is arranged on the fixed frame (34) through an adjusting shaft (36);
one end of the adjusting handle (7) is provided with a waist-shaped hole, the rotating shaft (35) is inserted into the waist-shaped hole, and the other end of the adjusting handle (7) is a handheld adjusting part;
in the small driven roller group (3), the outer surface of the movable driven roller (31) and the outer surfaces of the first driving roller (1) and the second driven roller (2) are arranged on the same level;
the control method comprises the following steps:
1) The outer surfaces of the first driving roller (1) and the second driven roller (2) are wound with lifting ropes (4), the ropes (4) are wound anticlockwise when seen from left to right according to the rope feeding direction, and the ropes (4) on the first driving roller (1) are wound anticlockwise until the second driven roller (2) is wound anticlockwise;
2) The steel wire rope is tightened after being wound on the first driving roller (1) and the second driven roller (2) for a plurality of times, and the rope (4) of the second driven roller (2) passes through the small driven roller group (3) to lift the weight;
3) When the rope (4) passes through the small driven roller group (3), the movable driven roller (31) is lifted by the adjusting handle (7), the rope (4) passes through a gap of the small driven roller group (3), and when the adjusting handle (7) is loosened, the movable driven roller (31) and the fixed driven roller (33) mutually clamp the rope (4) through the spring (32);
when the first driving roller runs and grinds, the heavy object drops, the rope moves reversely to drive the second driven roller to reversely rotate, the second driven roller reversely rotates to reversely rotate, the rope speed is reduced to V1, meanwhile, the rope moving reversely drives the small driven roller to reversely rotate, the speed of the rope is further reduced to V2, and as V1 is more than V2, the ropes on two sides of the second driven roller form a speed difference, so that the ropes are tightly wound on the second driven roller, the contact area of the ropes and the surface of the roller is increased, the contact area of the ropes exceeds 80%, the friction force is increased, the ropes are wound on the roller and cannot slide any more, the deterioration of the twisting and grinding phenomenon of the ropes is prevented, and meanwhile, the response time of the whole process is not more than 0.5s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181883.3A CN109867220B (en) | 2019-03-11 | 2019-03-11 | Double-roller motorized wringing mill non-return device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181883.3A CN109867220B (en) | 2019-03-11 | 2019-03-11 | Double-roller motorized wringing mill non-return device and control method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN109867220A CN109867220A (en) | 2019-06-11 |
| CN109867220B true CN109867220B (en) | 2024-01-16 |
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| CN201910181883.3A Active CN109867220B (en) | 2019-03-11 | 2019-03-11 | Double-roller motorized wringing mill non-return device and control method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112421484B (en) * | 2020-11-13 | 2022-04-26 | 中国南方电网有限责任公司超高压输电公司南宁局 | Safety labor-saving device for ground wire runaway |
| CN112707327B (en) * | 2020-12-18 | 2022-04-12 | 安徽宏源电力建设投资有限公司 | Motor-driven winch anti-falling device and using method thereof |
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