CN106744436B - End-free limit rope twisting device - Google Patents

End-free limit rope twisting device Download PDF

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Publication number
CN106744436B
CN106744436B CN201710012787.7A CN201710012787A CN106744436B CN 106744436 B CN106744436 B CN 106744436B CN 201710012787 A CN201710012787 A CN 201710012787A CN 106744436 B CN106744436 B CN 106744436B
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China
Prior art keywords
side plate
pulley
lock pin
pinion
rope
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CN201710012787.7A
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Chinese (zh)
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CN106744436A (en
Inventor
叶菁
叶汉清
苏紫妮
邹新翔
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/74—Capstans
    • B66D1/7415—Friction drives, e.g. pulleys, having a cable winding angle of less than 360 degrees
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/74—Capstans
    • B66D1/7484—Details concerning gearing arrangements, e.g. multi-speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/74—Capstans
    • B66D1/7489—Capstans having a particular use, e.g. rope ascenders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/01—Winches, capstans or pivots
    • B66D2700/0183—Details, e.g. winch drums, cooling, bearings, mounting, base structures, cable guiding or attachment of the cable to the drum

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Emergency Lowering Means (AREA)

Abstract

The invention provides an endless rope twisting device, which comprises a first side plate and a second side plate, wherein the first side plate is connected with the second side plate; the pulley is arranged between the first side plate and the second side plate and can rotate relative to the first side plate and the second side plate, a variable speed inner tooth cavity is arranged in one surface of the pulley, and a plurality of tooth parts are arranged on the circumferential surface of the variable speed inner tooth cavity; the connecting shaft is used for connecting the first side plate, the second side plate and the pulley together; the pinion shaft is arranged on the first side plate; a detent means; one end of the positioning lock pin is arranged on the inner surface of the second side plate, and the other end of the positioning lock pin is combined with the lock pin notch arranged at one end of the first side plate; and the brake pin is arranged on the inner surface of the second side plate. Compared with a lifting device consisting of a plurality of pulleys in the prior art, the lifting device is labor-saving, short in required rope length, simple in structure and high in safety factor.

Description

End-free limit rope twisting device
Technical Field
The invention relates to the technical field of rock climbing, tree climbing, hole exploration, rescue and mountain climbing apparatuses, in particular to a rope winch on a rope, which is used for transporting equipment and personnel and can realize ascending and descending functions.
Background
No matter in extreme sports, fire rescue or field rescue, such as rock climbing, mountain climbing and the like, or exploration, fire protection and rescue, material climbing or transportation needs to be carried out to a high place, in the process, a lifting system needs to be adopted, at present, a combined pulley form or a labor-saving system is adopted, for example, one person needs to lift 200 jin of material by 50 meters, stopping is not allowed in the midway, one-time lifting is carried out, a 1:5 pulley block needs to be made according to 40 jin of parallel pulling force (including friction coefficient), at least 260 meters of rope needs to be followed by a plurality of pulleys to complete, if the number of ropes is not prepared, the system needs to be repeatedly installed in the midway, no matter which method is adopted, a large number of ropes and equipment are needed to complete, the labor and the labor are wasted, the number of installation times is increased, and the safety factor is lowered.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the endless rope winch which is only provided with the single pulley, can rotate clockwise or anticlockwise and realizes the ascending or descending function.
In order to achieve the purpose, the invention adopts the technical scheme that: an endless rope winder comprises a first side plate and a second side plate;
the pulley is arranged between the first side plate and the second side plate and can rotate relative to the first side plate and the second side plate, a twisted rope groove is arranged in the circumferential surface of the pulley, a variable-speed inner tooth cavity is arranged in one surface of the pulley, a plurality of tooth parts are arranged on the circumferential surface of the variable-speed inner tooth cavity, and the surface of the pulley, provided with the variable-speed inner tooth cavity, is attached to the inner surface of the first side plate;
the connecting shaft is used for connecting the first side plate, the second side plate and the pulley together, and the pulley is sleeved on the connecting shaft;
the pinion shaft is arranged on the first side plate, the pinion is arranged on the inner end portion of the pinion shaft, the pinion is located in the speed change internal tooth cavity and meshed with the tooth portion, the outer end portion of the pinion shaft is arranged in the radial operating lever lock pin hole, and the pinion shaft and the pinion can rotate relative to the first side plate;
the pawl device comprises a rotating rod arranged on the first side plate, a control switch handle arranged at the outer end part of the rotating rod, a pawl arranged at the inner end part of the rotating rod, and a return spring, wherein one end of the return spring is arranged on the inner surface of the first side plate, the other end of the return spring is connected with the lower end of the pawl, and the pawl is positioned in the speed change internal tooth cavity;
one end of the positioning lock pin is arranged on the inner surface of the second side plate, and the other end of the positioning lock pin is combined with the lock pin notch arranged at one end of the first side plate;
and the brake pin is arranged on the inner surface of the second side plate.
Preferably, a first upper hanging hole is formed in the other end of the first side plate, and the first upper hanging hole is aligned with a second upper hanging hole formed in one end of the second side plate; the other end of the second side plate is provided with a lower hanging hole.
Preferably, the cross section of the twisted rope groove is in a V shape, and a plurality of oblique vortex eccentric grooves are formed in the inner walls of the two sides of the twisted rope groove.
Preferably, the free end of the positioning lock pin is provided with an annular groove, and the edge of the lock pin notch on the first side plate is combined with the annular groove; the lock rod section of the positioning lock pin is sleeved with a guide rope bearing.
A shaft sleeve is arranged in a central shaft hole of the pulley and is arranged on the connecting shaft.
The upper end of the pawl is meshed with a tooth part in the speed-changing internal tooth cavity, at the moment, the pinion shaft can only rotate clockwise or anticlockwise in a single direction and drives the pinion to rotate, the pinion drives the pulley to rotate clockwise or anticlockwise in a single direction, and when the pulley rotates, the upper end of the pawl slides on the upper end face of the tooth part.
The beneficial technical effects are as follows: the operating lever is inserted in an operating lever lock pin hole of the pinion shaft by utilizing the lever principle, the length of the operating lever can be adjusted and is generally multiple times of the diameter of the pinion shaft, the operating lever drives the pinion to rotate clockwise or anticlockwise, a tooth part meshed with the pinion can be driven to rotate by small force, the upper end of the pawl is meshed with the tooth part in the tooth cavity, the pulley can only rotate in one direction, the pulley can also be prevented from rotating reversely under the action of a heavy object, and the pulley drives a rope arranged on a rope twisting groove to move upwards; the cross section of each twisted rope groove is V-shaped, a plurality of oblique vortex eccentric grooves are formed in the inner walls of the two sides of each twisted rope groove, a rope section in each twisted rope groove is extruded to the bottom of each twisted rope groove under the action of gravity, each vortex eccentric groove is in contact with the two sides of each rope, the inner end of each vortex eccentric groove is obliquely directed to the bottom of each twisted rope groove, the outer end opening is located on the circumferential surface of each pulley, and all the vortex eccentric grooves form a vortex-shaped space for accommodating the ropes; when the heavy object is lifted, the outer ends of the vortex eccentric grooves which are positioned at the starting points of the mutual contact and stress of the rope and the pulley are inclined upwards, the inner ends of the vortex eccentric grooves are inclined to the center of the pulley, namely the bottom of the rope stranding groove, the vortex eccentric grooves are stressed, the rope is hinged to the bottom of the rope stranding groove and is clamped, and the rope is prevented from slipping on the pulley; when the rope continuously runs to the end point position, the rope is separated from the rope stranding groove, the outer end of the vortex eccentric groove at the end point is inclined downwards, the vortex eccentric groove at the end point position is reduced in the engagement force with the rope due to the change of the stress direction, the rope is separated from the rope stranding groove under the action of the rope guide bearing, and therefore a heavy object hung on the rope is pulled to the specified position; when a heavy object is placed down, the control switch handle is rotated to separate the upper end of the pawl from the tooth part, the unidirectional locking of the pawl to the pulley is released, the rope is hung on the brake lock pin, and the rope is hung on the brake lock pin by utilizing friction force and combined with the descender hung on the lower hanging hole.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a third perspective view of the present invention;
FIG. 4 is an exploded view of the present invention;
FIG. 5 is a schematic view of the inner surface of the first side plate of the present invention with parts disposed thereon;
FIG. 6 is a schematic perspective view of the pulley of the present invention;
FIG. 7 is a view of the present invention in an elevated state;
FIG. 8 is a diagram of a descending embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the novel aspects of the present invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings and embodiments.
After the first side plate and the second side plate are combined with the pulley, the surfaces, attached to the pulley, of the first side plate and the second side plate are inner surfaces, and otherwise, the surfaces are outer surfaces. Correspondingly, one end of other parts between the first side plate and the second side plate is defined as an inner end, and the other end is defined as an outer end.
As shown in fig. 1 to 6, the endless rope winch includes a first side plate 1, a second side plate 2;
the pulley 3 is arranged between the first side plate 1 and the second side plate 2 and can rotate relative to the first side plate and the second side plate, a twisted rope groove 301 is arranged in the circumferential surface of the pulley 3, a variable speed inner tooth cavity 302 is arranged in one surface of the pulley, a plurality of tooth parts 303 are arranged on the circumferential surface of the variable speed inner tooth cavity 302, and the surface of the pulley 3, provided with the variable speed inner tooth cavity, is attached to the inner surface of the first side plate 1;
the connecting shaft 4 is used for connecting the first side plate 1, the second side plate 2 and the pulley 3 together, and the pulley 3 is sleeved on the connecting shaft;
the pinion shaft 5 and the pinion 6, the pinion shaft 5 is arranged on the first side plate 1, the pinion 6 is arranged on the inner end part of the pinion shaft 5, the pinion 6 is positioned in the speed change inner tooth cavity 302 and meshed with the tooth part 303, the outer end part of the pinion shaft 5 is arranged in a radial operating lever lock pin hole 501, and both the pinion shaft 5 and the pinion 6 can rotate relative to the first side plate 1;
the pawl device comprises a rotating rod 7 arranged on the first side plate, a control switch handle 8 arranged at the outer end part of the rotating rod, a pawl 9 arranged at the inner end part of the rotating rod, a return spring 10 with one end arranged on the inner surface of the first side plate 1, the other end of the return spring connected with the lower end of the pawl, and the pawl 9 positioned in the speed change inner tooth cavity 302;
one end of the positioning lock pin 11 is arranged on the inner surface of the second side plate 2, and the other end of the positioning lock pin is combined with the lock pin notch 101 arranged at one end of the first side plate 1;
and a stopper pin 12 provided on an inner surface of the second side plate 2.
The return spring 10 plays a role in separation and connection, when the control switch handle 8 is positioned at an 'on' position, namely the pawl 9 is separated from the tooth part 303 in the speed change internal tooth cavity, and the whole system plays a role of a speed change pulley; when the control switch handle 8 is located at the 'on' position, the pawl 9 is meshed with the tooth part 303 in the speed change internal tooth cavity, acting force is applied to the pawl by the return spring 10, the pulley 3 can only run in one direction, and the whole system plays the role of a one-way pulley.
In this embodiment, a first upper hanging hole 102 is provided at the other end of the first side plate 1, and the first upper hanging hole is aligned with a second upper hanging hole 201 provided at one end of the second side plate 2; the other end of the second side plate 2 is provided with a lower hanging hole 202.
A plurality of vortex eccentric grooves 301a are arranged on the inner walls of the two sides of the twisted rope groove 301.
The free end part of the positioning lock pin 11 is provided with an annular groove 1101, and the edge of the lock pin notch 101 on the first side plate is combined with the annular groove; the lock rod section of the positioning lock pin is sleeved with a guide rope bearing 13.
A sleeve 14 is provided in the central bore 304 of the pulley, said sleeve being provided on the connecting shaft 4. The shaft sleeve 14 is a copper sleeve with lubricating oil, and is equivalent to a bearing, the copper sleeve is embedded in a central shaft hole of the pulley, and when the connecting shaft 4 penetrates through the pulley, the copper sleeve is arranged on the connecting shaft and is matched with the connecting shaft to rotate.
When the heavy object needs to be lifted, the upper end of the pawl 9 is in contact with the upper end face of the tooth portion 303 in the speed change internal tooth cavity, at this time, the pinion shaft 5 can only rotate clockwise and drive the pinion 6 to rotate, the pinion drives the pulley 3 to rotate clockwise, and when the pulley 3 rotates, the upper end of the pawl 9 slides on the upper end face of the tooth portion 303.
The positioning lock pin 11 plays a role in connecting the first side plate 1 and the second side plate 2, the rope guide bearing 13 on the positioning lock pin is hinged to the rope twisting groove 301 when the rope rises under load, and the rope guide bearing 13 plays a role in separating the rope from the rope twisting groove 301 and plays a role in guiding the rope.
When the rope load is lowered, the stopper pin 12 pulls the upper end of the rope strongly laterally toward the stopper pin, and the rope is turned into an L-shape by the stopper pin 12, thereby reducing the lowering speed by increasing the friction force, as shown in fig. 8.
In this embodiment, the weight is lifted by clockwise rotation, and obviously, the installation direction of the pulley 3 and the pawl 9 of the pawl device can be adjusted by rotating the pinion shaft in the counterclockwise direction, so as to drive the pulley to rotate counterclockwise to lift the weight.
By utilizing the lever principle, an operating lever is inserted in an operating lever lock pin hole 501 of the pinion shaft 5, the length of the operating lever can be adjusted, the operating lever is generally multiple times of the diameter of the pinion shaft, the operating lever drives the pinion 6 to rotate clockwise, a tooth part 303 meshed with the pinion 6 can be driven to rotate by small force, the upper end of a pawl 9 is meshed with the tooth part 303 in a tooth cavity, a pulley 3 can only rotate in one direction, the pulley can also be prevented from rotating reversely under the action of a weight, and the pulley 3 drives a rope 15 arranged on a rope twisting groove to move upwards; the cross section of the twisted rope groove 301 is V-shaped, a plurality of oblique vortex eccentric grooves 301a are formed in the inner walls of two sides of the twisted rope groove, rope sections in the twisted rope groove 301 are extruded to the bottom of the twisted rope groove under the action of gravity, the vortex eccentric grooves 301a are in contact with two sides of a rope, the inner end of each vortex eccentric groove is obliquely directed to the bottom of the twisted rope groove, therefore, force acting on the operating lever drives the pinion, the linked tooth part and the twisted rope groove on the pulley to hinge the rope by the aid of the principle of centripetal sliding, the outer end opening is located on the circumferential surface of the pulley 3, and all the vortex eccentric grooves 301a form a vortex-shaped space for accommodating the rope.
As shown in fig. 2 and fig. 6-7, when the heavy object is lifted, the outer ends of the vortex eccentric grooves 301a at the starting point position a where the rope 15 and the pulley are contacted and stressed are all inclined upwards, the inner ends are inclined to the center of the pulley, namely the bottom of the rope twisting groove, the vortex eccentric grooves are stressed, the rope 15 is hinged to the bottom of the rope twisting groove and clamped, and the rope 15 is prevented from slipping on the pulley 3; when the rope continues to run to the end position b, the rope 15 is separated from the stranded rope groove 301, the outer ends of the vortex eccentric grooves 301a at the end point are inclined downwards, the vortex eccentric grooves at the end point are reduced in the engaging force with the rope due to the change of the stress direction, the rope is separated from the stranded rope groove 301 under the action of the rope guide bearing 13, and therefore a heavy object hung on the rope is pulled to a specified position.
As shown in fig. 8, when the heavy object is dropped, the control switch handle 8 is rotated to disengage the upper end of the pawl 9 from the tooth portion, the one-way locking of the pawl 9 to the pulley is released, the rope 15 is hung on the brake pin 12, and the lowering operation is completed by using the frictional force in combination with the lowering device 16 hung on the lower hanging hole.
While the present invention has been described with respect to the embodiments, those skilled in the art will appreciate that there are numerous variations and permutations of the present invention without departing from the spirit of the invention, and it is intended that the appended claims cover such variations and modifications as fall within the true spirit of the invention.

Claims (6)

1. An endless rope winch is characterized by comprising a first side plate and a second side plate;
the pulley is arranged between the first side plate and the second side plate and can rotate relative to the first side plate and the second side plate, a twisted rope groove is arranged in the circumferential surface of the pulley, a variable-speed inner tooth cavity is arranged in one surface of the pulley, a plurality of tooth parts are arranged on the circumferential surface of the variable-speed inner tooth cavity, and the surface of the pulley, provided with the variable-speed inner tooth cavity, is attached to the inner surface of the first side plate;
the connecting shaft is used for connecting the first side plate, the second side plate and the pulley together, and the pulley is sleeved on the connecting shaft;
the pinion shaft is arranged on the first side plate, the pinion is arranged on the inner end portion of the pinion shaft, the pinion is located in the speed change internal tooth cavity and meshed with the tooth portion, the outer end portion of the pinion shaft is arranged in the radial operating lever lock pin hole, and the pinion shaft and the pinion can rotate relative to the first side plate;
the pawl device comprises a rotating rod arranged on the first side plate, a control switch handle arranged at the outer end part of the rotating rod, a pawl arranged at the inner end part of the rotating rod, and a return spring, wherein one end of the return spring is arranged on the inner surface of the first side plate, the other end of the return spring is connected with the lower end of the pawl, and the pawl is positioned in the speed change internal tooth cavity;
one end of the positioning lock pin is arranged on the inner surface of the second side plate, and the other end of the positioning lock pin is combined with the lock pin notch arranged at one end of the first side plate;
and the brake pin is arranged on the inner surface of the second side plate.
2. The endless rope winch of claim 1, wherein the other end of the first side plate is provided with a first upper hanging hole that is aligned with a second upper hanging hole provided at one end of the second side plate; the other end of the second side plate is provided with a lower hanging hole.
3. The endless rope winch of claim 1, wherein the cross-sectional shape of the winch groove is a V-shape, and a plurality of inclined spiral eccentric grooves are formed on both inner walls of the winch groove.
4. The endless rope winch of claim 1, wherein the free end of the positioning lock pin is provided with an annular groove, and the edge of the lock pin notch on the first side plate is combined with the annular groove; the lock rod section of the positioning lock pin is sleeved with a guide rope bearing.
5. The endless rope winch of claim 1, wherein a bushing is disposed in the central axial bore of the pulley, said bushing being disposed on the connecting shaft.
6. The endless rope winch of claim 1, wherein the upper end of the pawl is engaged with the teeth in the internal gear cavity of the transmission, and the pinion shaft is rotated in one direction only clockwise or counterclockwise to rotate the pinion, and the pinion rotates the pulley in one direction clockwise or counterclockwise, and the upper end of the pawl slides on the upper end surface of the teeth when the pulley rotates.
CN201710012787.7A 2017-01-09 2017-01-09 End-free limit rope twisting device Active CN106744436B (en)

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Application Number Priority Date Filing Date Title
CN201710012787.7A CN106744436B (en) 2017-01-09 2017-01-09 End-free limit rope twisting device

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Application Number Priority Date Filing Date Title
CN201710012787.7A CN106744436B (en) 2017-01-09 2017-01-09 End-free limit rope twisting device

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CN106744436A CN106744436A (en) 2017-05-31
CN106744436B true CN106744436B (en) 2022-09-20

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Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
WO2019041626A1 (en) * 2017-08-31 2019-03-07 赛诺韦尔实业（上海）有限公司 Device for adjusting height of suspended lamp
CN109539061A (en) * 2017-09-22 2019-03-29 赛诺韦尔实业（上海）有限公司 For adjusting the device of suspended lamp height
CN110775844B (en) * 2019-11-05 2020-12-15 浙江润华机电有限公司 Multi-wire pulley
CN112809623A (en) * 2019-11-15 2021-05-18 美国产品集团公司 Multi-function tool assembly with load tension assembly
WO2022111839A1 (en) * 2020-11-30 2022-06-02 Freundorfer Isabell Christine Rope conveying device

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CN203865916U (en) * 2014-05-30 2014-10-08 宁波力富特牵引机制造有限公司 Manual capstan
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