CN111924735A - Clutch type rope-threading hoisting mechanism for crane - Google Patents
Clutch type rope-threading hoisting mechanism for crane Download PDFInfo
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- CN111924735A CN111924735A CN202010890714.XA CN202010890714A CN111924735A CN 111924735 A CN111924735 A CN 111924735A CN 202010890714 A CN202010890714 A CN 202010890714A CN 111924735 A CN111924735 A CN 111924735A
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- clutch
- rope
- winding drum
- steel wire
- wire rope
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- 230000007246 mechanism Effects 0.000 title claims abstract description 43
- 238000004804 winding Methods 0.000 claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 230000009467 reduction Effects 0.000 claims abstract description 4
- 239000004519 grease Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- B66D1/02—Driving gear
- B66D1/08—Driving gear incorporating fluid motors
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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
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
- B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation
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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
- B66D1/28—Other constructional details
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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
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
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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
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—Bearing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a clutch type rope threading hoisting mechanism for a crane, relates to the technical field of clutch type hoisting mechanisms, and particularly relates to a hoisting mechanism which is applied to a large crane and is used for threading and tensioning a hoisting steel wire rope on an arm support. The invention comprises the following steps: the hydraulic control device comprises a hydraulic motor, a frame, a winding drum, a planetary gear train, a steel wire rope, a clutch, a rope pressing device and a guide device; the frame is connected to the crane through a pin shaft; the winding drum is arranged in the frame and can rotate in the frame; a planetary gear train is arranged in the winding drum; the input end of the planetary gear train is connected with a hydraulic motor arranged on one side of the frame, and the output end of the planetary gear train is connected with a clutch arranged on the other side of the frame; the steel wire rope is wound on the outer wall of the winding drum; a guide device is arranged on the rack in the steel wire rope outlet direction; a rope pressing device is arranged on the frame on the side opposite to the rope outlet direction of the steel wire rope; the hydraulic motor is connected with the winding drum through the planetary gear train and drives the winding drum to rotate, and the winding drum outputs the steel wire rope to the steel wire rope finally after speed reduction and torque increase, so that the steel wire rope is wound and unwound.
Description
Technical Field
The invention discloses a clutch type rope threading hoisting mechanism for a crane, relates to the technical field of clutch type hoisting mechanisms, and particularly relates to a hoisting mechanism which is applied to a large crane and is used for threading and tensioning a hoisting steel wire rope on an arm support.
Background
Along with the development of large engineering projects, the development and the use of large-tonnage cranes are more and more, the diameter of a steel wire rope is increased, the weight of the steel wire rope per unit length of the large-tonnage crane is far higher than that of a steel wire rope of a small-tonnage crane, and the threading and tensioning difficulty of the steel wire rope is higher and higher. At present, most cranes mount and replace steel wire ropes by manpower, and have low working efficiency and are unsafe; although a rope-threading hoisting mechanism is arranged on a few cranes, most cranes have large volume and heavy weight and are inconvenient to install and debug; although the existing compact type rope threading hoisting mechanism is compact and light, no guide device is arranged in the direction of a rope outlet, the rope threading hoisting mechanism does not have a clutch function, the rope unwinding action of a steel wire rope can only be realized by changing the output direction of a hydraulic motor, the complexity of a hydraulic system is increased, and in the actual rope unwinding process, the rope threading hoisting mechanism can be operated by multi-person cooperative operation, even if the speed of manually dragging the steel wire rope of the rope threading hoisting mechanism is hardly matched with the speed of driving the rope unwinding of the hydraulic motor, so that the working efficiency is reduced, self rope disorder is easily caused, and the actual use requirement can not be well met.
Aiming at the problems in the prior art, a novel clutch type rope-threading hoisting mechanism for a crane is researched and designed, so that the problem in the prior art is very necessary to be overcome.
Disclosure of Invention
According to the technical problems of large volume, heavy weight, inconvenient installation and debugging, low working efficiency of manual rope dragging, easy rope disorder and the like in the prior art, the clutch type rope-threading hoisting mechanism for the crane is provided. The invention mainly utilizes the rope-threading hoisting mechanism which is provided with the guide device and the clutch, thereby solving the problems of low efficiency when threading and tensioning the steel wire rope and self rope disorder when the mechanism receives and releases the rope, and simultaneously newly designing the internal structure of the rope-threading hoisting mechanism to ensure that the mechanism is easier to produce and maintain.
The technical means adopted by the invention are as follows:
a clutch type rope threading hoisting mechanism for a crane comprises: the hydraulic control device comprises a hydraulic motor, a frame, a winding drum, a planetary gear train, a steel wire rope, a clutch, a rope pressing device and a guide device;
furthermore, four pin shaft holes are formed in the rack and connected to a crane wallboard through pin shafts;
furthermore, the winding drum is arranged inside the frame and can rotate inside the frame; a planetary gear train is arranged in the winding drum;
furthermore, the input end of the planetary gear train is connected with a hydraulic motor arranged on one side of the frame, and the output end of the planetary gear train is connected with a clutch arranged on the other side of the frame, so that the on-off of power transmission is realized;
further, the steel wire rope is wound on the outer wall of the winding drum;
furthermore, a guide device is arranged on the rack in the rope outlet direction of the steel wire rope, and a rope pressing device is arranged on the rack on the side opposite to the rope outlet direction of the steel wire rope, so that rope disorder is prevented;
furthermore, the hydraulic motor is connected with the winding drum through the planetary gear train and drives the winding drum to rotate, and the winding drum outputs the steel wire rope through the winding drum finally after speed reduction and torque increase, so that the winding and unwinding of the steel wire rope are realized.
Further, the planetary gear train is the second grade closed differential planetary gear train, includes: the device comprises a secondary planet carrier, a secondary gear ring, a secondary planet wheel, a primary gear ring, a primary planet wheel, a bearing seat II, a flange II, a bearing seat I, a spline housing, a primary sun wheel, a primary planet carrier, a secondary sun wheel and a bearing seat III;
furthermore, the external spline of the first-stage sun gear is matched and connected with the internal spline of the spline sleeve arranged on the output shaft of the hydraulic motor,
furthermore, a primary sun gear is meshed with 3 primary planet gears, and the 3 primary planet gears are meshed with a primary gear ring at the same time;
furthermore, the primary planet gear is arranged on the primary planet carrier, and the primary planet carrier is connected with the secondary sun gear through a spline;
further, a secondary sun gear is meshed with 3 secondary planet gears, and the 3 secondary planet gears are meshed with a secondary gear ring at the same time;
furthermore, the secondary planet gear is arranged on a secondary planet carrier, and the secondary planet carrier and the winding drum are combined together through screws;
further, the secondary planet carrier is connected with the clutch through a third bearing seat; the bearing seat is combined with the frame through a screw;
furthermore, the first-stage gear ring, the second-stage gear ring and the bearing seat are connected together through screws;
furthermore, the second bearing seat and the second flange are combined together by screws; the second flange is combined on the frame through a screw;
furthermore, the bearing seat and the winding drum are combined together through a screw, and a felt ring, a V-shaped ring and a bearing are arranged between the bearing seat and the second flange.
Further, the clutch includes: the stop screw, the flange, the clutch sleeve, the dustproof cover, the pull rod and the grease filling oil cup;
further, the flange and the bearing seat tee are combined together through a screw and connected with the rack through a bearing seat III;
furthermore, two annular grooves are formed in the outer wall of the clutch sleeve, and stop screws are mounted in threaded holes of the flange and are matched with the annular grooves in the clutch sleeve to position and stop the clutch sleeve; a gap is reserved between the outer wall of the clutch sleeve and the flange; when the clutch is in a connection state, the positioning screw is screwed into the annular groove on the left side of the clutch sleeve, and the secondary sun gear is meshed with the secondary planet gear at the moment, so that the power transmission function is realized; when the clutch needs to be changed into a separation state, the positioning screw is screwed to be separated from the annular groove on the left side of the clutch sleeve, then the clutch sleeve is pulled outwards, the clutch sleeve, the pull rod and the secondary sun gear integrally move towards the left side until the secondary sun gear is separated from the secondary planet gear, the positioning screw is screwed into the annular groove on the right side of the clutch sleeve, the power connection is interrupted, and the winding drum can freely rotate;
furthermore, the pull rod is connected with a clutch sleeve, and a bearing is arranged between the pull rod and the clutch sleeve;
further, the pull rod is combined with the secondary sun gear through a screw;
furthermore, the dustproof cover is arranged at the inner hole of the clutch sleeve; the grease injection cup is arranged in a threaded hole in the end face of the flange so as to meet the requirements of dust prevention and lubrication of the bearing.
Further, the guide device includes: the device comprises a fixed ring, a guide rod and a guide wheel;
furthermore, the guide wheel is sleeved on the guide rod, can freely move along the axial direction of the guide rod and can rotate relative to the guide rod; in the use process, the steel wire rope is always positioned in the groove on the guide wheel, the device plays a role in guiding the steel wire rope, the rope outlet direction of the steel wire rope can be controlled, and rope disorder is prevented.
Furthermore, two ends of the guide rod are arranged in a strip-shaped groove of the rack, the guide rod is sleeved with the fixing ring from outside to inside, the fixing ring is combined on the rack through a bolt, and the guide rod is fixed on the rack.
Further, a bearing and grinding pad is arranged between the right end of the primary planet carrier and the primary sun gear.
Furthermore, an O-shaped ring is arranged between the outer wall of the second-stage sun gear and the second-stage planet carrier.
And further, a bearing and an oil seal are arranged between the outer wall of the spline sleeve and the inner hole of the second bearing seat.
Further, a bearing is arranged between the inner hole of the primary gear ring and the outer wall of the secondary planet carrier.
And an oil seal is arranged between the inner hole of the secondary gear ring and the outer wall of the secondary planet carrier.
And further, a bearing is arranged between the outer wall of the secondary planet carrier and the three inner holes of the bearing seat.
The using process of the invention is as follows:
firstly, a steel wire rope releasing step:
1. free payout by adjusting clutch to disengaged state: and rotating the positioning screw to separate the positioning screw from the annular groove on the left side of the clutch sleeve, pulling the clutch sleeve outwards until the positioning screw is aligned with the annular groove on the right side of the clutch sleeve, screwing the positioning screw into the groove, separating the secondary planet wheel from the secondary sun wheel, enabling the winding drum, the secondary planet carrier and the secondary planet wheel to rotate freely, and pulling the steel wire rope to discharge the steel wire rope.
2. The reel is driven by a hydraulic motor to unwind: the clutch is in connected state, starts hydraulic motor and makes its antiport, and power transmits to one-level sun gear through the spline housing, through with the meshing of one-level planet wheel, gives the second grade sun gear with power transmission by one-level planet carrier, through with the meshing of second grade planet wheel, by second grade planet carrier output power, then with power transmission for its rotation of reel drive, emit wire rope. The rotation direction of the hydraulic motor is the same as that of the winding drum
II, a steel wire rope withdrawing step:
adjusting the clutch to a connected state: rotating the positioning screw to separate the positioning screw from the right annular groove of the clutch sleeve, pushing the clutch sleeve inwards until the positioning screw is aligned with the left annular groove of the clutch sleeve, screwing the positioning screw into the groove, connecting the secondary planet wheel with the secondary sun wheel, transmitting power to the winding drum by the hydraulic motor, starting the hydraulic motor to enable the hydraulic motor to rotate forwards, transmitting power to the primary sun wheel through the spline sleeve, engaging with the primary planet wheel, transmitting power to the secondary sun wheel by the primary planet carrier, engaging with the secondary planet wheel, outputting power by the secondary planet carrier, transmitting power to the winding drum to drive the winding drum to rotate, and withdrawing the steel wire rope.
In the process of realizing winding and unwinding of the rope by the winding drum, the rope pressing device presses the steel wire rope all the time. The rope pressing device is positioned on the other side of the rope outlet direction, and the roller of the rope pressing device is always pressed on the steel wire rope by virtue of the tension spring and rotates relative to the steel wire rope. The steel wire rope in the rope outlet direction is always positioned in a groove of the guide wheel in the guide device, and the guide wheel rotates along with the steel wire rope in the rope winding and unwinding process and moves axially along the guide rod. The use of the two devices can effectively avoid rope disorder.
Compared with the prior art, the invention has the following advantages:
1. according to the clutch type rope-threading winding mechanism for the crane, the first-stage gear ring, the second-stage gear ring and the winding drum are designed in a split mode, the strength of the gear rings can be guaranteed, the production and the assembly are easy, and the later-stage maintenance cost is low. In the prior art, the primary gear ring, the secondary gear ring and the winding drum are integrally cast, the production difficulty is high, waste products are easily produced, the gear ring is made of cast iron, the strength is low, and once the gear ring is damaged, the gear ring needs to be integrally replaced.
2. According to the clutch type rope-threading hoisting mechanism for the crane, the second-stage planet carrier adopts a split type double-support design, can be directly machined, saves the cost of casting and forging dies, and is easy to assemble and low in later-stage maintenance cost. And the secondary planet carrier of the prior art is forged as an organic whole and has a complex structure, which is easy to produce waste products, and needs to be replaced integrally once damaged.
3. According to the clutch type rope-threading hoisting mechanism for the crane, the rope outlet is provided with the steel wire rope guide device, so that the steel wire rope is guided, and rope disorder is avoided in an auxiliary manner; the prior art does not have such a guide.
4. The clutch type rope threading hoisting mechanism for the crane is provided with the clutch, so that rope can be released by driving of a hydraulic motor, and free rope release without driving of a motor can be realized; the prior art has no clutch, can only reversely drive the rope to be paid off through a motor, has low efficiency and is easy to cause rope disorder.
5. According to the clutch type rope-threading hoisting mechanism for the crane, the needle roller bearing is adopted in the planet wheel, so that the volume of the bearing is greatly reduced, and the internal space of the mechanism is saved; in the prior art, the planet wheel is internally provided with a bearing without an outer ring, so that the occupied space is large.
6. According to the clutch type rope-threading hoisting mechanism for the crane, the steel wire rope is fixed on the outer side of the winding drum vertical plate through the rope pressing block, so that the winding drum structure is simplified, and the winding drum is easier to cast; in the prior art, the steel wire rope is fixed inside the winding drum through the rope wedges, and the casting of the winding drum is relatively complex.
7. According to the clutch type rope-threading hoisting mechanism for the crane, the oil outlet is arranged at the lowest position of the oil level, and lubricating oil can be completely discharged; and the oil discharge port in the prior art is high in position, so that lubricating oil cannot be discharged completely, and oil replacement is inconvenient.
8. According to the clutch type rope-threading hoisting mechanism for the crane, the labyrinth seal structure or the V-shaped ring is arranged at the grease lubrication bearing, so that dust can be effectively prevented; and the grease lubrication bearing in the prior art has no dustproof treatment.
Generally, the clutch type rope threading hoisting mechanism for the crane provided by the invention can replace manual threading and replacement of a hoisting steel wire rope, can meet the requirement of light weight of the whole crane, and can avoid the rope disorder problem of rope winding and unwinding; by the optimized design of the planetary gear train structure and the transmission form in the mechanism, the processing and assembling difficulty is reduced, and the production and maintenance cost is reduced; due to the design and installation of the guide device and the clutch, the rope can be conveniently and efficiently taken up and put down; meanwhile, the occupied space is small, the installation and debugging are convenient, the efficiency of the hoisting preparation work of the crane is improved, and the expenses in the manual work and installation and maintenance processes are reduced.
In conclusion, the technical scheme of the invention solves the problems of large volume, heavy weight, inconvenience in installation and debugging, low working efficiency of manual rope dragging, easiness in rope disorder and the like in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a view taken along line A of FIG. 1;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a schematic view of the structure of the guiding device of the present invention;
FIG. 5 is a schematic view of the clutch connection state structure of the present invention;
FIG. 6 is a schematic diagram of the clutch disengaged state structure of the present invention.
In the figure: 1. the hydraulic control device comprises a hydraulic motor 2, a frame 3, a winding drum 4, a planetary gear train 5, a steel wire rope 6, a clutch 7, a rope pressing device 8, a secondary planetary carrier 9, a secondary gear ring 10, a secondary planetary gear 11, a primary gear ring 12, a primary planetary gear 13, a second bearing seat 14, a second flange 15, a first bearing seat 16, a spline sleeve 17, a primary sun gear 18, a bearing and grinding pad 19, a primary planetary carrier 20, a secondary sun gear 21, a stop screw 22, a flange 23, a clutch sleeve 24, a dust cover 25, a pull rod 26, a grease injection oil cup 27, a guide device 28, a fixing ring 29, a guide rod 30, a guide wheel 31 and a third bearing seat.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1 and 2, the present invention provides a clutch type rope-threading hoisting mechanism for a crane, which comprises: the hydraulic control system comprises a hydraulic motor 1, a frame 2, a winding drum 3, a planetary gear train 4, a steel wire rope 5, a clutch 6, a rope pressing device 7 and a guide device 27; the frame 2 is connected to the crane through a pin shaft; the winding drum 3 is arranged inside the frame 2 and can rotate inside the frame 2; a planetary gear train 4 is arranged in the winding drum 3; the input end of the planetary gear train 4 is connected with the hydraulic motor 1 arranged on one side of the frame 2, and the output end is connected with the clutch 6 arranged on the other side of the frame 2; the steel wire rope 5 is wound on the outer wall of the winding drum 3; a guide device 27 is arranged on the frame 2 in the rope outlet direction of the steel wire rope 5; a rope pressing device 7 is arranged on the frame 2 on the side opposite to the rope outlet direction of the steel wire rope 5; the hydraulic motor 1 is connected with the winding drum 3 through the planetary gear train 4, drives the winding drum 3 to rotate, and finally outputs the steel wire rope 5 through the winding drum 3 after speed reduction and torque increase, so that the winding and unwinding of the steel wire rope 5 are realized.
As shown in fig. 1 and 3, the planetary gear train 4 is a two-stage closed differential planetary gear train, including: the device comprises a secondary planet carrier 8, a secondary gear ring 9, a secondary planet wheel 10, a primary gear ring 11, a primary planet wheel 12, a bearing seat II 13, a flange II 14, a bearing seat I15, a spline sleeve 16, a primary sun wheel 17, a primary planet carrier 19, a secondary sun wheel 20 and a bearing seat III 31; the external spline of the first-stage sun gear 17 is matched and connected with the internal spline of a spline housing 16 arranged on the output shaft of the hydraulic motor 1; the primary sun gear 17 is meshed with 3 primary planet gears 12, and the 3 primary planet gears 12 are simultaneously meshed with the primary gear ring 11; the primary planet gear 12 is arranged on a primary planet carrier 19, and the primary planet carrier 19 is connected with a secondary sun gear 20 through a spline; the secondary sun gear 20 is meshed with the 3 secondary planet gears 10, and the 3 secondary planet gears 10 are simultaneously meshed with the secondary gear ring 9; the secondary planet gear 10 is arranged on the secondary planet carrier 8, and the secondary planet carrier 8 and the winding drum 3 are combined together through screws; the secondary planet carrier 8 is connected with the clutch 6 through a bearing seat III 31; the bearing seat III 31 is combined with the frame 2 through a screw; the first-stage gear ring 11, the second-stage gear ring 9 and the second bearing seat 13 are connected together through screws; the second bearing seat 13 and the second flange 14 are fastened together by screws; the second flange 14 is fastened on the frame 2 through screws; the first bearing seat 15 and the winding drum 3 are combined together through screws, and a felt ring, a V-shaped ring and a bearing are arranged between the first bearing seat 15 and the second flange 14.
As shown in fig. 1, 3, 5, and 6, the clutch 6 includes: a stop screw 21, a flange 22, a clutch sleeve 23, a dust cover 24, a pull rod 25 and a grease filling oil cup 26; the flange 22 and the third bearing seat 31 are combined together through screws and connected with the frame 2 through the third bearing seat 31; two annular grooves are formed in the outer wall of the clutch sleeve 23, and the stop screws 21 are mounted in threaded holes of the flange 22 and matched with the annular grooves in the clutch sleeve 23 to position and stop the clutch sleeve 23; a gap is reserved between the outer wall of the clutch sleeve 23 and the flange 22; the pull rod 25 is connected with the clutch sleeve 23, and a bearing is arranged between the pull rod 25 and the clutch sleeve 23; the pull rod 25 is combined with the secondary sun gear 20 through a screw; the dustproof cover 24 is arranged at the inner hole of the clutch sleeve 23; grease cups 26 are mounted in threaded bores in the end face of the flange 22.
As shown in fig. 5 and 6, when the clutch is in a connected state, the set screw 21 is screwed into the annular groove on the left side of the clutch sleeve 23, and at the moment, the secondary sun gear 20 is meshed with the secondary planet gear 10, so that a power transmission function is realized; when the clutch needs to be switched to a separated state, the positioning screw 21 is screwed to be separated from the annular groove on the left side of the clutch sleeve 23, then the clutch sleeve 23 is pulled out, at the moment, the clutch sleeve 23, the pull rod 25 and the secondary sun gear 20 integrally move towards the left side until the secondary sun gear 20 is separated from the secondary planet gear 10, then the positioning screw 21 is screwed into the annular groove on the right side of the clutch sleeve 23, at the moment, the power connection is interrupted, and the winding drum 3 can rotate freely.
As shown in fig. 1 and 4, the guide device 27 includes: a fixed ring 28, a guide bar 29 and a guide wheel 30; the guide wheel 30 is sleeved on the guide rod 29, can freely move along the axial direction of the guide rod 29 and can rotate relative to the guide rod 29; two ends of the guide rod 29 are arranged in a strip-shaped groove of the frame 2, the guide rod 29 is sleeved with the fixing ring 28 from outside to inside, the fixing ring 28 is combined on the frame 2 through a bolt, and the guide rod 29 is fixed on the frame 2.
As shown in fig. 3, a wear pad 18 is provided between the right end of the primary carrier 19 and the primary sun gear 17.
As shown in fig. 1, 3, 5 and 6, an O-ring is arranged between the outer wall of the secondary sun gear 20 and the secondary planet carrier 8. And a bearing and an oil seal are arranged between the outer wall of the spline housing 16 and the inner hole of the second bearing block 13. And a bearing is arranged between the inner hole of the primary gear ring 11 and the outer wall of the secondary planet carrier 8. An oil seal is arranged between the inner hole of the second-stage gear ring 9 and the outer wall of the second-stage planet carrier 8. And a bearing is arranged between the outer wall of the secondary planet carrier 8 and the inner hole of the third bearing seat 31.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a separation and reunion formula wire rope hoist mechanism for hoist which characterized in that, separation and reunion formula wire rope hoist mechanism for hoist include: the device comprises a hydraulic motor (1), a frame (2), a winding drum (3), a planetary gear train (4), a steel wire rope (5), a clutch (6), a rope pressing device (7) and a guide device (27);
the frame (2) is connected to the crane through a pin shaft;
the winding drum (3) is arranged inside the rack (2) and can rotate inside the rack (2); a planetary gear train (4) is arranged in the winding drum (3);
the input end of the planetary gear train (4) is connected with the hydraulic motor (1) arranged on one side of the frame (2), and the output end of the planetary gear train is connected with the clutch (6) arranged on the other side of the frame (2);
the steel wire rope (5) is wound on the outer wall of the winding drum (3);
a guide device (27) is arranged on the rack (2) in the rope outlet direction of the steel wire rope (5);
a rope pressing device (7) is arranged on the frame (2) on the side opposite to the rope outlet direction of the steel wire rope (5);
the hydraulic motor (1) is connected with the winding drum (3) through the planetary gear train (4) and drives the winding drum (3) to rotate, and after speed reduction and torque increase, the hydraulic motor is finally output to the steel wire rope (5) through the winding drum (3) to achieve winding and unwinding of the steel wire rope (5).
2. The clutch type rope-threading hoisting mechanism for the crane according to claim 1, characterized in that the planetary gear train (4) is a two-stage closed differential planetary gear train, comprising: the device comprises a secondary planet carrier (8), a secondary gear ring (9), a secondary planet wheel (10), a primary gear ring (11), a primary planet wheel (12), a second bearing seat (13), a second flange (14), a first bearing seat (15), a spline sleeve (16), a primary sun wheel (17), a primary planet carrier (19), a secondary sun wheel (20) and a third bearing seat (31);
the external spline of the primary sun gear (17) is matched and connected with the internal spline of a spline sleeve (16) arranged on the output shaft of the hydraulic motor (1),
the primary sun gear (17) is meshed with 3 primary planet gears (12), and the 3 primary planet gears (12) are simultaneously meshed with the primary gear ring (11);
the primary planet gear (12) is arranged on the primary planet carrier (19), and the primary planet carrier (19) is connected with the secondary sun gear (20) through a spline;
the secondary sun gear (20) is meshed with the 3 secondary planet gears (10), and the 3 secondary planet gears (10) are simultaneously meshed with the secondary gear ring (9);
the secondary planet gear (10) is arranged on the secondary planet carrier (8), and the secondary planet carrier (8) and the winding drum (3) are combined together through screws;
the secondary planet carrier (8) is connected with the clutch (6) through a bearing seat III (31); the bearing seat III (31) is combined with the frame (2) through a screw;
the primary gear ring (11), the secondary gear ring (9) and the second bearing seat (13) are connected together through screws;
the second bearing seat (13) and the second flange (14) are combined together by screws; the second flange (14) is fastened on the frame (2) through screws;
the bearing seat I (15) and the winding drum (3) are combined together through screws, and a felt ring, a V-shaped ring and a bearing are arranged between the bearing seat I (15) and the flange II (14).
3. A clutch-type rope-threading hoisting mechanism for cranes according to claim 1, characterized in that the clutch (6) comprises: a stop screw (21), a flange (22), a clutch sleeve (23), a dust cover (24), a pull rod (25) and a grease filling oil cup (26);
the flange (22) and the bearing seat III (31) are combined together through screws and are connected with the rack (2) through the bearing seat III (31);
two annular grooves are formed in the outer wall of the clutch sleeve (23), and a stop screw (21) is installed in a threaded hole of the flange (22) and is matched with the annular grooves in the clutch sleeve (23) to position and stop the clutch sleeve (23); a gap is reserved between the outer wall of the clutch sleeve (23) and the flange (22); when the clutch is in a connection state, the positioning screw (21) is screwed into the annular groove on the left side of the clutch sleeve (23), and the secondary sun gear (20) is meshed with the secondary planet gear (10) to realize a power transmission function; when the clutch needs to be changed into a separation state, the positioning screw (21) is screwed to be separated from the annular groove on the left side of the clutch sleeve (23), then the clutch sleeve (23) is pulled outwards, at the moment, the clutch sleeve (23), the pull rod (25) and the secondary sun gear (20) integrally move towards the left side until the secondary sun gear (20) is separated from the secondary planet gear (10), then the positioning screw (21) is screwed into the annular groove on the right side of the clutch sleeve (23), at the moment, the power connection is interrupted, and the winding drum (3) can freely rotate;
the pull rod (25) is connected with the clutch sleeve (23), and a bearing is arranged between the pull rod (25) and the clutch sleeve (23);
the pull rod (25) is combined with the secondary sun gear (20) through a screw;
the dustproof cover (24) is arranged at the inner hole of the clutch sleeve (23);
the grease filling oil cup (26) is arranged in a threaded hole in the end face of the flange (22).
4. A clutch-type reeving mechanism for cranes, according to claim 1, characterized in that said guiding means (27) comprise: a fixed ring (28), a guide rod (29) and a guide wheel (30);
the guide wheel (30) is sleeved on the guide rod (29), can freely move along the axial direction of the guide rod (29) and can rotate relative to the guide rod (29);
two ends of the guide rod (29) are arranged in a strip-shaped groove of the rack (2), the guide rod (29) is sleeved with the fixing ring (28) from outside to inside, the fixing ring (28) is combined on the rack (2) through a bolt, and the guide rod (29) is fixed on the rack (2).
5. The clutch type rope-threading hoisting mechanism for the crane according to claim 2, characterized in that a bearing and grinding pad (18) is arranged between the right end of the primary planet carrier (19) and the primary sun gear (17).
6. The clutch type rope-threading winding mechanism for the crane according to claim 2, characterized in that an O-shaped ring is arranged between the outer wall of the secondary sun gear (20) and the secondary planet carrier (8).
7. The clutch type rope-threading hoisting mechanism for the crane according to claim 2, characterized in that a bearing and an oil seal are arranged between the outer wall of the spline housing (16) and the inner hole of the second bearing seat (13).
8. The clutch type rope-threading hoisting mechanism for the crane according to claim 2, characterized in that a bearing is arranged between the inner hole of the primary gear ring (11) and the outer wall of the secondary planet carrier (8).
9. The clutch type rope-threading hoisting mechanism for the crane according to claim 2, characterized in that an oil seal is arranged between the inner hole of the secondary gear ring (9) and the outer wall of the secondary planet carrier (8).
10. The clutch type rope-threading hoisting mechanism for the crane according to claim 2, characterized in that a bearing is arranged between the outer wall of the secondary planet carrier (8) and the inner hole of the bearing seat III (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010890714.XA CN111924735A (en) | 2020-08-29 | 2020-08-29 | Clutch type rope-threading hoisting mechanism for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010890714.XA CN111924735A (en) | 2020-08-29 | 2020-08-29 | Clutch type rope-threading hoisting mechanism for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111924735A true CN111924735A (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010890714.XA Pending CN111924735A (en) | 2020-08-29 | 2020-08-29 | Clutch type rope-threading hoisting mechanism for crane |
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| Country | Link |
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| CN (1) | CN111924735A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938797A (en) * | 2021-02-07 | 2021-06-11 | 西北机器有限公司 | Using method of aircraft missile hanging elevator |
| CN115973942A (en) * | 2023-02-21 | 2023-04-18 | 浙江润华机电有限公司 | Hydraulic winch with limiting function and switchable traction modes |
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| CN204151002U (en) * | 2014-10-13 | 2015-02-11 | 丁宁 | A kind of capstan winch |
| CN104925691A (en) * | 2015-06-15 | 2015-09-23 | 浙江诺和机电有限公司 | Rope-guiding hydraulic winch |
| CN106865436A (en) * | 2017-03-30 | 2017-06-20 | 大连华锐重工集团股份有限公司 | Crane wire rope handling hoisting mechanism |
| CN212532109U (en) * | 2020-08-29 | 2021-02-12 | 大连华锐重工集团股份有限公司 | Clutch type rope-threading hoisting mechanism for crane |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204151002U (en) * | 2014-10-13 | 2015-02-11 | 丁宁 | A kind of capstan winch |
| CN104925691A (en) * | 2015-06-15 | 2015-09-23 | 浙江诺和机电有限公司 | Rope-guiding hydraulic winch |
| CN106865436A (en) * | 2017-03-30 | 2017-06-20 | 大连华锐重工集团股份有限公司 | Crane wire rope handling hoisting mechanism |
| CN212532109U (en) * | 2020-08-29 | 2021-02-12 | 大连华锐重工集团股份有限公司 | Clutch type rope-threading hoisting mechanism for crane |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938797A (en) * | 2021-02-07 | 2021-06-11 | 西北机器有限公司 | Using method of aircraft missile hanging elevator |
| CN115973942A (en) * | 2023-02-21 | 2023-04-18 | 浙江润华机电有限公司 | Hydraulic winch with limiting function and switchable traction modes |
| CN115973942B (en) * | 2023-02-21 | 2025-03-11 | 浙江润华机电有限公司 | Hydraulic winch with limit function and switchable traction mode |
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Application publication date: 20201113 |
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