CN112607642B - Multi-wire pulley equipment - Google Patents
Multi-wire pulley equipment Download PDFInfo
- Publication number
- CN112607642B CN112607642B CN202110052964.0A CN202110052964A CN112607642B CN 112607642 B CN112607642 B CN 112607642B CN 202110052964 A CN202110052964 A CN 202110052964A CN 112607642 B CN112607642 B CN 112607642B
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- Prior art keywords
- pulley
- cantilevers
- mounting
- wheel
- cantilever
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- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 59
- 239000003921 oil Substances 0.000 claims description 25
- 239000010687 lubricating oil Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
- B66D3/08—Arrangements of sheaves
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/50—Features essential to rope pulleys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pulleys (AREA)
Abstract
The invention belongs to the technical field of pulleys, and particularly relates to multi-wire pulley equipment which comprises a pulley mechanism for winding a steel rope, a fixed pulley mechanism, a pulley cantilever for installing a traction rope, and a pin shaft for connecting the pulley mechanism and the pulley cantilever, wherein the pulley cantilever in the shackle type pulley is shorter than the pulley cantilever on the traditional shackle type pulley under the condition of equal requirements on the pulley cantilever; after long-time use, the surface-to-surface fit gap between the pulley cantilever and the pulley mechanism is small in increase degree, so that the probability of clamping the steel rope at the gap is relatively small, and the service life is long; the pulley cantilever consists of the two first cantilevers and the two second cantilevers, when the two traction ropes need to be pulled from different directions, the two first cantilevers and the two second cantilevers are respectively unfolded to two sides to form traction points of the pulley cantilevers in two different directions, and the pulley cantilever of each traction point in each direction has a double-side structure and is high in strength.
Description
Technical Field
The invention belongs to the technical field of pulleys, and particularly relates to multi-wire pulley equipment.
Background
At present, the off-road vehicle often uses devices such as a winch and a pulley shackle in the off-road process, and the winch and the pulley shackle are combined to be used in the use process, and the winch can be used in a first-line, a second-line, a third-line and other use methods.
The shackle type pulley is formed by connecting a pulley around which a steel rope winds and a pulley cantilever provided with a traction rope through a pin shaft, and the two pulley cantilevers can be opened in a relative rotation manner; winding the wire rope on the pulley, even the wire rope or the wire ring without an opening can be wound on the pulley; however, the conventional shackle type pulley has three problems:
1. after the shackle type pulley cantilever is pulled for a long time, the shackle type pulley cantilever can deform, so that the surface-to-surface fit gap between the pulley cantilever and the pulley is enlarged, and a steel rope can be clamped in the surface-to-surface fit gap between the pulley cantilever and the pulley;
2. The pulley cantilever on the traditional shackle pulley consists of two independent cantilevers, when one-way traction is needed, the two cantilevers are combined to form a complete pulley cantilever, when two traction ropes are needed to be pulled from different directions, the two cantilevers are unfolded, and one cantilever completes traction in one direction, so that the shackle pulley cantilever is possibly deformed and damaged due to too thin cantilever, and traction is affected;
3. The pulley on the traditional shackle pulley can only bypass one strand of steel wire rope, when the pulley block formed by the winch and the pulley is needed to achieve the purpose of saving labor, the multi-wire shackle pulley is needed, one wire or two wires of pulleys are generally used, and the two wires of pulleys are stressed on the central plane of the pulley when the one wire of pulleys are used, so that the use cost and the carrying burden are increased due to the fact that the two groups of pulleys are generally needed to be carried.
The invention designs a multi-wire pulley device to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses multi-wire pulley equipment which is realized by adopting the following technical scheme.
The utility model provides a multi-wire pulley device, it includes the pulley mechanism that supplies the steel cable to walk around, fixed pulley mechanism and installs the pulley cantilever of haulage rope, connects the round pin axle of pulley mechanism and pulley cantilever, its characterized in that: the pulley mechanism consists of a mounting wheel, a mounting rotating wheel and two sliding rings, wherein the mounting wheel is eccentrically mounted on the pin shaft, the mounting rotating wheel is mounted on the outer side of the mounting wheel in a nested manner through running fit, the two sliding rings are mounted on the mounting rotating wheel in a nested manner, and the two sliding rings can slide back and forth along the axis of the mounting rotating wheel on the mounting rotating wheel; the pulley cantilever consists of two first cantilevers and two second cantilevers which are symmetrically arranged, the first cantilevers and the second cantilevers which are positioned at the same side form a group of cantilever combinations, and the two cantilever combinations are respectively arranged at two ends of the pin shaft in a limiting way by a clamping ring; the mounting wheel is provided with an oil hole for adding lubricating oil to the matching surfaces of the mounting wheel and the mounting rotating wheel.
As a further improvement of the technology, the upper ends of the two first cantilevers and the two second cantilevers are respectively provided with a traction hole connected with a traction rope; two mounting step surfaces are formed at two ends of the pin shaft; the lower ends of the two first cantilevers and the two second cantilevers are respectively provided with a shaft hole, and the two first cantilevers and the two second cantilevers are respectively arranged on two mounting step surfaces at two ends of the pin shaft through the shaft holes on the two first cantilevers and the two second cantilevers; a step is formed between two installation step surfaces opened by the two first cantilevers and the two second cantilevers and the outer circular surface of the installation pulley mechanism; the two first cantilevers and the two second cantilevers are limited through the two steps, so that the two first cantilevers and the two second cantilevers are prevented from interfering with the pulley mechanism in swinging, the two first cantilevers and the two second cantilevers can limit the pulley mechanism, the pulley mechanism is prevented from sliding back and forth on the pin shaft, and the stable shape of a steel rope bypassing the pulley mechanism is influenced.
As a further improvement of the technology, the outer circular surfaces of the two mounting step surfaces are provided with a clamping groove, the inner ends of two clamping rings of the two first cantilevers and the two second cantilevers are respectively nested in the two clamping grooves, and the outer ends of the two clamping rings limit the two first cantilevers and the two second cantilevers; the clamping ring is an elastic ring with an opening; when the pulley is disassembled, the clamping ring is pulled from the opening of the clamping ring to two sides, so that the opening of the clamping ring is enlarged, and the clamping ring is taken down, thereby facilitating the subsequent disassembly of the pulley.
As a further improvement of the technology, an installation round groove is formed in one end face of the installation wheel, an oil hole formed in the installation wheel is positioned between the inner end face of the installation round groove and the outer circular face of the installation wheel, and the oil hole comprises an axial oil channel and a radial oil channel reaching the outer circular face and is communicated with the two oil channels; a nozzle tip convenient for adding lubricating oil is arranged on the inner end surface of the installation circular groove; the mounting wheel is mounted on the pin shaft through the eccentric through hole; through adding lubricating oil to the contact circular surface of the installation wheel and the installation rotating wheel, the lubrication degree of the installation rotating wheel in the rotation process of the installation wheel is guaranteed, and the oil hole and the oil nozzle on the installation wheel are processed, manufactured, used and maintained by adopting the prior art.
As a further improvement of the technology, a plurality of weight-reducing through holes for reducing the weight of the pulley mechanism are formed on the mounting wheel.
As a further improvement of the technology, the outer circular surface of the installation rotating wheel is provided with a U-shaped groove with a widened bottom surface, and a plurality of avoidance notches are uniformly formed on two side surfaces of the U-shaped groove in the circumferential direction; two ends of the slip ring are semi-U-shaped surfaces, and a plurality of nesting grooves are uniformly formed in the circumference of one semi-U-shaped surface; the two slip rings are installed in the U-shaped groove of the installation rotating wheel in a sliding fit manner; by the sliding of the two sliding rings, the two sliding rings and the U-shaped groove of the installation rotating wheel form a middle U-shaped groove or two U-shaped grooves positioned at two sides.
As a further improvement of the technology, a plurality of sliding grooves are uniformly formed in the bottom surface of the U-shaped groove formed in the outer circular surface of the installation rotating wheel in the circumferential direction, a plurality of sliding blocks are uniformly arranged in the inner circular surface of the two sliding rings in the circumferential direction, and the two sliding rings are installed on the installation rotating wheel through sliding fit between the sliding blocks and the sliding grooves.
As a further improvement of the technology, the shaft holes on the two first cantilevers and the two second cantilevers are connected with the corresponding two step surfaces through sliding bearings.
As a further improvement of the technology, the oil nozzle is fixedly arranged in a circular installation groove formed in the installation wheel in a threaded fit mode.
As a further improvement of the technology, the axis of the mounting circular groove, the axis of the eccentric through hole and the axis of the mounting wheel are coplanar.
Compared with the traditional pulley technology, the pulley has the following beneficial effects:
1. Under the condition of equal requirements on the pulley cantilever, the pulley cantilever in the shackle pulley designed by the invention has short arm distance relative to the pulley cantilever on the traditional shackle pulley; after long-time use, the clearance between the pulley cantilever and the pulley mechanism is small in degree of increase, so that the probability of clamping the steel rope by the clearance is relatively small, and the service life is long.
2. The pulley cantilever consists of the two first cantilevers and the two second cantilevers, when the two traction ropes need to be pulled from different directions, the two first cantilevers and the two second cantilevers are respectively unfolded to two sides to form traction points of the pulley cantilevers in two different directions, and the pulley cantilever of each traction point in each direction has a double-side structure and is high in strength.
3. The two-wire pulley is characterized in that the two slip rings are nested and overlapped to reduce the length of the installation runner, so that the installation runner is more firm and stable, and the use requirement of the two-wire pulley and the single-wire pulley is met.
Drawings
Fig. 1 is a schematic view of the overall component appearance.
Fig. 2 is a schematic plan view of the overall component.
Fig. 3 is a schematic view of the internal structure of the whole part.
FIG. 4 is a schematic illustration of a first boom and a second boom installation.
Fig. 5 is a schematic view of the first cantilever and the second cantilever.
Fig. 6 is a schematic diagram of a pulley mechanism installation.
Fig. 7 is a schematic view of the construction of the mounting wheel.
Fig. 8 is a schematic view of the structure of the mounting wheel.
Fig. 9 is a schematic view of the slip ring structure.
Fig. 10 is a schematic diagram of the working principle of the installation wheel and the slip ring.
Fig. 11 is a schematic diagram of the working principle of the first cantilever and the second cantilever.
Reference numerals in the figures: 1. a pulley cantilever; 2. a pin shaft; 3. a pulley mechanism; 4. a clasp; 5. a first cantilever; 6. a second cantilever; 7. a traction hole; 8. a shaft hole; 9. a nipple; 10. a mounting wheel; 11. installing a rotating wheel; 12. an oil hole; 13. mounting a step surface; 14. a clamping groove; 15. a weight-reducing through hole; 16. installing a round groove; 17. a chute; 18. avoiding the notch; 19. a nesting groove; 20. a slip ring; 21. a slide block; 22. eccentric through holes.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples or figures are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, it includes a pulley mechanism 3 for winding a steel rope, a pulley cantilever 1 for fixing the pulley mechanism 3 and installing a traction rope, and a pin shaft 2 for connecting the pulley mechanism 3 and the pulley cantilever 1, and is characterized in that: as shown in fig. 9, the pulley mechanism 3 is composed of a mounting wheel 10, a mounting rotating wheel 11 and two slip rings 20, as shown in fig. 3, the mounting wheel 10 is eccentrically mounted on the pin shaft 2, the mounting rotating wheel 11 is nested outside the mounting wheel 10 through a rotating fit, the two slip rings 20 are nested on the mounting rotating wheel 11, and the two slip rings 20 can slide back and forth on the mounting rotating wheel 11 along the axis of the mounting rotating wheel 11; as shown in fig. 4 and 5, the pulley cantilever 1 is composed of two first cantilevers 5 and two second cantilevers 6 which are symmetrically installed, the first cantilevers 5 and the second cantilevers 6 which are positioned on the same side form a group of cantilever combinations, and the two cantilever combinations are respectively installed at two ends of the pin shaft 2 in a limited manner by a clamping ring 4; as shown in fig. 7, the mounting wheel 10 has oil holes 12 for adding lubricating oil to the mating surfaces of the mounting wheel 10 and the mounting wheel 11.
In the invention, a mounting wheel 10 is eccentrically mounted on a pin shaft 2, a rotating wheel combination consisting of a mounting rotating wheel 11 and a slip ring 20, which is wound by a steel wire, is mounted on the mounting wheel 10, and the rotating axis of the rotating wheel combination is the axis of the mounting wheel 10; the axis of the installation wheel 10 is not collinear with the axis of the pin shaft 2, namely, the installation axis of the pulley mechanism 3 consisting of the installation wheel 10, the installation rotating wheel 11 and the slip ring 20 is not collinear with the rotation axis; the installation axis and the rotation axis of the pulley mechanism 3 for the steel wire to bypass are both the axis of the pin shaft 2 for installing the pulley mechanism 3; because the fixed pulley mechanism 3 and the pulley cantilever 1 provided with the traction rope are arranged on the pin shaft 2, the arm length of the pulley cantilever 1 in the shackle pulley designed by the invention is shorter than that of the pulley cantilever 1 on the traditional shackle pulley under the condition of equal requirements on the pulley cantilever 1; in the use process, after the use of the same strength and times, the deformation degree of the pulley cantilever 1 in the shackle pulley designed by the invention is smaller than that of the pulley cantilever 1 in the traditional shackle pulley, so that the clearance between the pulley cantilever 1 and the pulley mechanism 3 is smaller in the increase degree of the surface-to-surface fit after long-time use, the probability of clamping a steel rope in the clearance is also relatively smaller, and the service life is longer.
As shown in fig. 4 and 5, a traction hole 7 for connecting a traction rope is formed at the upper ends of the two first cantilevers 5 and the two second cantilevers 6; two mounting step surfaces 13 are formed at two ends of the pin shaft 2; the lower ends of the two first cantilevers 5 and the two second cantilevers 6 are respectively provided with a shaft hole 8, and the two first cantilevers 5 and the two second cantilevers 6 are respectively arranged on two mounting step surfaces 13 at the two ends of the pin shaft 2 through the shaft holes 8 on the two first cantilevers 5 and the two second cantilevers 6; a step is formed between two mounting step surfaces 13 opened by the two first cantilevers 5 and the two second cantilevers 6 and the outer circular surface of the mounting pulley mechanism 3 on the pin shaft 2; the two first cantilevers 5 and the two second cantilevers 6 are limited through the two steps, so that the two first cantilevers 5 and the two second cantilevers 6 cannot interfere with the pulley mechanism 3 when swinging, the two first cantilevers 5 and the two second cantilevers 6 can limit the pulley mechanism 3, the pulley mechanism 3 is prevented from sliding back and forth on the pin shaft 2, and the stability of a steel rope wound on the pulley mechanism 3 is influenced.
As shown in fig. 11, the pulley cantilever 1 in the invention is composed of two first cantilevers 5 and two second cantilevers 6, when two hauling ropes need to be hauled from different directions, the two first cantilevers 5 and the two second cantilevers 6 are respectively unfolded to two sides to form hauling points of the pulley cantilever 1 in two different directions, and the pulley cantilever 1 of the hauling points in each direction has a double-side structure, has higher strength and is used for connecting the hauling ropes in two different directions; if only unidirectional traction is needed, two first cantilevers 5 and two second cantilevers 6 are combined to form a superposed pulley cantilever 1; the pulley cantilever 1 on the traditional shackle pulley consists of two independent cantilevers, when unidirectional traction is needed, the two cantilevers are combined to form a complete pulley cantilever 1, when two traction ropes are needed to draw from different directions, the two cantilevers are unfolded, one cantilever finishes traction in one direction, and the traction in one direction is carried out by the traction of the cantilever at one side, so that the cantilever of the shackle pulley is possibly deformed and damaged due to too thin cantilever, and the traction is influenced.
As shown in fig. 6, the outer circumferential surfaces of the two mounting step surfaces 13 are respectively provided with a clamping groove 14, the inner ends of the two clamping rings 4 of the two first cantilevers 5 and the two second cantilevers 6 are respectively nested in the two clamping grooves 14, and as shown in fig. 5, the outer ends of the two clamping rings 4 limit the two first cantilevers 5 and the two second cantilevers 6; the clamping ring 4 is an elastic ring with an opening; when the pulley is disassembled, the clamping ring 4 is pulled from the opening of the clamping ring 4 to two sides, so that the opening of the clamping ring 4 is enlarged, and the clamping ring 4 is taken down, thereby facilitating the subsequent disassembly of the pulley.
As shown in fig. 7, an end surface of the mounting wheel 10 is provided with a mounting circular groove 16, an oil hole 12 formed in the mounting wheel 10 is positioned between an inner end surface of the mounting circular groove 16 and an outer circular surface of the mounting wheel 10, the oil hole 12 comprises an axial oil passage and a radial oil passage reaching the outer circular surface, and the two oil passages are communicated; a nozzle 9 which is convenient for adding lubricating oil is arranged on the inner end surface of the circular groove 16; the mounting wheel 10 is mounted on the pin shaft 2 through an eccentric through hole 22; by adding lubricating oil to the contact circular surfaces of the installation wheel 10 and the installation wheel 11, the lubrication degree of the installation wheel 11 in the rotation process relative to the installation wheel 10 is ensured, and the oil hole 12 and the oil nozzle 9 on the installation wheel 10 are processed, manufactured, used and maintained by adopting the prior art.
As shown in fig. 7, the mounting wheel 10 is provided with a plurality of weight-reducing through holes 15 for reducing the weight of the pulley mechanism 3.
The outer circular surface of the installation rotating wheel 11 is provided with a U-shaped groove with a widened bottom surface, and a plurality of avoidance notches 18 are uniformly formed on two side surfaces of the U-shaped groove in the circumferential direction; both ends of the slip ring 20 are semi-U-shaped surfaces, and a plurality of nesting grooves 19 are uniformly formed in the circumferential direction of one semi-U-shaped surface; the two slip rings 20 are mounted in the U-shaped groove of the mounting runner 11 by sliding fit; by the sliding of the two slip rings 20, the two slip rings 20 and the U-shaped groove of the installation wheel 11 form a U-shaped groove in the middle or two U-shaped grooves on both sides.
As shown in fig. 10, two slip rings 20 designed by the invention can slide back and forth in a U-shaped groove formed on the installation runner 11, and two different forms of complete U-shaped grooves for steel ropes to bypass can be formed through sliding adjustment; firstly, two slip rings 20 are controlled to slide and adjust towards the middle, a complete U-shaped groove symmetrically distributed on two sides is formed to form a double-line pulley, the double-line pulley and a winch form a pulley block to achieve the purpose of saving labor, the U-shaped grooves on two sides can accommodate a steel wire rope, and the middle groove is too small to accommodate the steel wire rope; secondly, the two sliding rings 20 are controlled to slide and adjust to two sides, a complete U-shaped groove is formed by two half U-shaped surfaces of the two sliding rings 20 facing one another, the pulley mechanism 3 in the form can be used for winding a steel wire once, the middle U-shaped groove can be formed to accommodate the steel wire rope, and the grooves on the two sides are too small to accommodate the steel wire rope; the pulley block formed by the shackle type pulley designed by the invention is more convenient to use by adjusting the sliding of the two slip rings 20 in the pulley mechanism 3 according to the actual situation to form the pulley mechanisms 3 in different forms; when the slip rings 20 designed by the invention slide towards the middle to form two symmetrically distributed complete U-shaped grooves, one ends of the two slip rings 20 which face each other are mutually nested and overlapped through the nesting grooves 19 formed on the slip rings; when the slip rings 20 slide to two sides to form a complete U-shaped groove, one ends of the two slip rings 20 opposite to each other are nested and overlapped with each other through the matching of the nesting groove 19 formed on the slip rings and the avoiding notch 18 formed on the installation rotating wheel 11; the pulley of the invention basically has stress points near the central plane no matter the single-wire or double-wire sliding, solves the problem that the stress of the two-wire pulley is not on the central plane of the pulley when the single-wire pulley is used, and simultaneously reduces the length of the installation runner 11 through nesting and overlapping of the two slip rings 20, so that the installation runner 11 becomes stronger and more stable, and the use requirement of the single pulley for the double-wire and single-wire pulleys is met. The position of the slip ring 20 is automatically adjusted according to the requirement of the corresponding U-shaped groove by the steel wire rope.
The wall thickness of the thinnest part of the eccentric through hole 22 on the installation wheel 10 and the wall thickness of the installation wheel 11 meet the strength requirement when the product runs, the installation relation is only shown in the drawing, and the structural proportion is not limited.
As shown in fig. 8, a plurality of sliding grooves 17 are uniformly formed in the bottom surface of the U-shaped groove formed in the outer circumferential surface of the installation runner 11, and as shown in fig. 9, a plurality of sliding blocks 21 are uniformly formed in the inner circumferential surface of each of the two sliding rings 20, and the two sliding rings 20 are installed on the installation runner 11 by sliding fit of the sliding blocks 21 and the sliding grooves 17.
The shaft holes 8 on the two first cantilevers 5 and the two second cantilevers 6 are connected with the corresponding two step surfaces through sliding bearings.
The oil nozzle 9 is fixedly arranged in a mounting circular groove 16 formed on the mounting wheel 10 in a threaded fit manner.
The axis of the mounting circular groove 16 formed in the mounting wheel 10, the axis of the eccentric through hole 22 and the axis of the mounting wheel 10 are coplanar.
To sum up:
The pulley designed by the invention has the advantages that under the condition of equal requirements on the pulley cantilever 1, the arm distance of the pulley cantilever 1 in the shackle pulley designed by the invention is shorter than that of the pulley cantilever 1 on the traditional shackle pulley; after long-time use, the surface-to-surface fit gap between the pulley cantilever 1 and the pulley mechanism 3 is small in increase degree, so that the probability of clamping the steel rope in the gap is relatively small, and the service life is long; the pulley cantilever 1 is composed of the two first cantilevers 5 and the two second cantilevers 6, when two hauling ropes need to be hauled from different directions, the two first cantilevers 5 and the two second cantilevers 6 are respectively unfolded towards two sides to form hauling points of the pulley cantilever 1 in two different directions, and the pulley cantilever 1 of the hauling points in each direction has a double-side structure and high strength; the pulley of the invention is characterized in that the stress points are arranged on the central surface when the pulley of the two wires is in single-wire or double-wire sliding, so that the problem that the stress of the pulley of the two wires is not arranged on the central surface of the pulley when the pulley of the two wires is used is solved, and meanwhile, the length of the installation runner 11 is reduced by nesting and overlapping the two slip rings 20, so that the installation runner 11 becomes stronger and more stable, and the use requirement of the pulley of the two wires and the pulley of the single wire is met.
Claims (4)
1. The utility model provides a multi-wire pulley device, it includes the pulley mechanism that supplies the steel cable to walk around, fixed pulley mechanism and installs the pulley cantilever of haulage rope, connects the round pin axle of pulley mechanism and pulley cantilever, its characterized in that: the pulley mechanism consists of a mounting wheel, a mounting rotating wheel and two sliding rings, wherein the mounting wheel is eccentrically mounted on the pin shaft, the mounting rotating wheel is mounted on the outer side of the mounting wheel in a nested manner through running fit, the two sliding rings are mounted on the mounting rotating wheel in a nested manner, and the two sliding rings can slide back and forth along the axis of the mounting rotating wheel on the mounting rotating wheel; the pulley cantilever consists of two first cantilevers and two second cantilevers which are symmetrically arranged, the first cantilevers and the second cantilevers which are positioned at the same side form a group of cantilever combinations, and the two cantilever combinations are respectively arranged at two ends of the pin shaft in a limiting way by a clamping ring; the mounting wheel is provided with an oil hole for adding lubricating oil to the matching surfaces of the mounting wheel and the mounting rotating wheel;
the mounting wheel is provided with a plurality of weight-reducing through holes for reducing the weight of the pulley mechanism;
The outer circular surface of the installation rotating wheel is provided with a U-shaped groove with a widened bottom surface, and a plurality of avoidance notches are uniformly formed in the circumferential direction on two side surfaces of the U-shaped groove; two ends of the slip ring are semi-U-shaped surfaces, and a plurality of nesting grooves are uniformly formed in the circumference of one semi-U-shaped surface; the two slip rings are installed in the U-shaped groove of the installation rotating wheel in a sliding fit manner; the two slip rings and the U-shaped groove of the installation rotating wheel form a middle U-shaped groove or two U-shaped grooves positioned at two sides by the sliding of the two slip rings;
A plurality of sliding grooves are uniformly formed in the bottom surface of a U-shaped groove formed in the outer circular surface of the installation rotating wheel in the circumferential direction, a plurality of sliding blocks are uniformly arranged in the circumferential direction on the inner circular surface of each sliding ring, and the two sliding rings are installed on the installation rotating wheel through sliding fit between the sliding blocks and the sliding grooves;
The upper ends of the two first cantilevers and the two second cantilevers are respectively provided with a traction hole connected with a traction rope; two mounting step surfaces are formed at two ends of the pin shaft; the lower ends of the two first cantilevers and the two second cantilevers are respectively provided with a shaft hole, and the two first cantilevers and the two second cantilevers are respectively arranged on two mounting step surfaces at two ends of the pin shaft through the shaft holes on the two first cantilevers and the two second cantilevers;
The shaft holes on the two first cantilevers and the two second cantilevers are connected with the corresponding two mounting step surfaces through sliding bearings;
The axis of the installation circular groove, the axis of the eccentric through hole and the axis of the installation wheel are coplanar.
2. A multi-wire pulley apparatus as in claim 1 wherein: the outer circular surfaces of the two mounting step surfaces are provided with clamping grooves, the inner ends of two clamping rings of the two first cantilevers and the two second cantilevers are respectively nested in the two clamping grooves, and the outer ends of the two clamping rings limit the two first cantilevers and the two second cantilevers; the snap ring is an elastic ring with an opening.
3. A multi-wire pulley apparatus as in claim 1 wherein: an oil hole formed in the mounting wheel is positioned between the inner end face of the mounting round groove and the outer circular face of the mounting wheel, and the oil hole comprises an axial oil passage and a radial oil passage reaching the outer circular face and communicated with each other; a nozzle tip convenient for adding lubricating oil is arranged on the inner end surface of the installation circular groove; the installation wheel is installed on the pin shaft through the eccentric through hole.
4. A multi-wire pulley apparatus as claimed in claim 3, wherein: the oil nozzle is fixedly arranged in a circular installation groove formed in the installation wheel in a threaded fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110052964.0A CN112607642B (en) | 2019-11-05 | 2019-11-05 | Multi-wire pulley equipment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911068442.9A CN110775844B (en) | 2019-11-05 | 2019-11-05 | Multi-wire pulley |
| CN202110052964.0A CN112607642B (en) | 2019-11-05 | 2019-11-05 | Multi-wire pulley equipment |
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| CN205892546U (en) * | 2016-08-22 | 2017-01-18 | 广州宜红机电科技有限公司 | A assembly pulley for hoist lifts by crane |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112607643B (en) | 2024-02-02 |
| CN110775844B (en) | 2020-12-15 |
| CN110775844A (en) | 2020-02-11 |
| CN112607643A (en) | 2021-04-06 |
| CN112607642A (en) | 2021-04-06 |
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