CN114803915A - Electric control electric hoist for crane - Google Patents
Electric control electric hoist for crane Download PDFInfo
- Publication number
- CN114803915A CN114803915A CN202210588678.0A CN202210588678A CN114803915A CN 114803915 A CN114803915 A CN 114803915A CN 202210588678 A CN202210588678 A CN 202210588678A CN 114803915 A CN114803915 A CN 114803915A
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- Prior art keywords
- power device
- reel
- oil
- sleeve
- winding drum
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- 238000004804 winding Methods 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 238000003825 pressing Methods 0.000 claims abstract description 33
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 239000004519 grease Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 2
- 210000003437 trachea Anatomy 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 206010033307 Overweight Diseases 0.000 description 24
- 235000020825 overweight Nutrition 0.000 description 24
- 238000005507 spraying Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- B66D1/54—Safety gear
- B66D1/58—Safety gear responsive to excess of load
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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
- B66D1/54—Safety gear
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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
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
- F16N7/32—Mist lubrication
- F16N7/34—Atomising devices for oil
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
The invention belongs to the technical field of electric hoists and discloses an electrically controlled electric hoist for a crane, which comprises a winding drum, wherein a speed reducer is movably arranged on the left side of the winding drum, and a power device is movably sleeved on the right side of the winding drum. According to the invention, the pressing plate is fixedly arranged on the lower surfaces of the speed reducer, the power device and the brake, the pressing springs are fixedly arranged on the lower surfaces of the pressing plates in a uniformly distributed manner, the overweight signal sending post is fixedly arranged on the lower surface of the pressing plate and positioned on the inner ring of the pressing spring, and the overweight signal receiving sleeve is fixedly arranged on the lower surface of the inner cavity of the outer sleeve, so that when a steel rope hanging object on the winding drum bears the gravity, the pressing plate is pulled to move downwards to compress the pressing spring, and when the weight of the hanging object causes the bottom surface of the overweight signal sending post to be in contact fit with the overweight signal receiving sleeve, namely the weight of the hanging object exceeds the load of the power device, the hanging object needs to be deleted and repacked, the frequent overload work of the power device is prevented, and the service life of the power device is prolonged.
Description
Technical Field
The invention belongs to the technical field of electric hoists, and particularly relates to an electrically controlled electric hoist for a crane.
Background
The crane is a device which controls an operating rod in a cab by workers and controls each part to work by electric signals, the electric hoist is one of the control devices, the electric hoist is a special hoisting device and is arranged on a crown block and a gantry crane, the electric hoist has the characteristics of small volume, light dead weight, simplicity in operation, convenience in use and the like, and is used in places such as industrial and mining enterprises, storage, wharfs and the like, and the electric hoist has a compact structure.
When the electric hoist is used, the motor drives the drum to rotate, the rope wound on the rope groove of the drum is wound and released to lift or release an object hung by the rope, and the object to be hung is usually hung on the hook by the steel rope for transportation.
The electric hoist in the prior art is used in a place such as a building site, when materials used in a high-rise building are transported, steel ropes in the electric hoist are wound on the outer surface of a winding drum in multiple layers, and hung objects are bound together, so that the weight of the objects needing to be hung cannot be mastered, a power device of the electric hoist can be overloaded, the load of the power device is serious, and the power device is overheated and damaged; meanwhile, the tightness of the steel ropes is not high before the steel ropes on the winding drum hang objects, so that when the steel ropes lift and bear loads, the load is too heavy, the steel ropes wound on the winding drum are excessively tensioned, the steel ropes wound in multiple layers are in close contact, the friction is too large, and the steel ropes are easy to damage.
Disclosure of Invention
The invention aims to provide an electric hoist for an electrically controlled crane, which solves the problems in the background technology.
In order to achieve the above purpose, the invention provides the following technical scheme: an electric hoist for an electrically controlled crane comprises a winding drum, wherein a speed reducer is movably mounted on the left side of the winding drum, a power device is movably sleeved on the right side of the winding drum, a brake is sleeved on a bearing on the right side of an output shaft of the power device, an inner hole is formed in the winding drum, a coupler is movably sleeved in the middle of the inner hole, a rotating shaft is sleeved at the left end and the right end of the coupler in a threaded manner, the rotating shaft is movably sleeved with the speed reducer, the rotating shaft on the right side penetrates through the power device and is movably sleeved with the brake, the rotating shaft on the right side is fixedly mounted with the power device, a shell is fixedly mounted on the outer ring on one side of the speed reducer, the winding drum is movably sleeved in the shell, a steel rope is wound on the outer surface of the winding drum, a rope guide is slidably sleeved on one side of the shell, and a pressing plate is fixedly mounted on the lower surfaces of the speed reducer, the power device and the brake, the outer surface movable sleeve of clamp plate is equipped with the overcoat, the rope notch has been seted up to one side of overcoat bottom surface, the overcoat is with reel, reduction gear, power device, stopper suit inside it, the lower fixed surface of clamp plate installs evenly distributed's pressure spring, the lower extreme of pressure spring and the lower fixed surface installation of overcoat inner chamber, the lower fixed surface of clamp plate installs overweight signal and sends out the post, overweight signal sends out the inner ring that the post is located the pressure spring, the lower fixed surface of overcoat inner chamber installs overweight signal receiving cover.
Preferably, the overweight signal receiving sleeve is of a vertical cylindrical structure, and the overweight signal sending column is movably sleeved in the inner cavity of the overweight signal receiving sleeve.
As preferred, the middle part fixed mounting of clamp plate lower surface has the gasbag, the left side the gas pocket has been seted up to the inside of pivot, the left side the left end of pivot passes the reduction gear, the left side the left end movable sleeve of pivot is equipped with the two-way valve, the left side of two-way valve and the internal surface slidable mounting of overcoat, trachea and gasbag intercommunication are passed through to the below of two-way valve, the gas pocket has been seted up to the circumference of shaft coupling surface, the mounting groove has been seted up to the surface of reel, the inside of reel is equipped with the expansion plate that circumference distributes through mounting groove movable sleeve.
As preferred, the fixed cover in inside of hole is equipped with the seal cover, the middle part disconnection and the disconnection department of seal cover and the sealed suit of shaft coupling, the both ends fixed mounting of hole has the grease chamber, the grease chamber is located the surface of seal cover, the inside movable sleeve of grease chamber is equipped with the one end of push rod, the push rod inboard passes the grease chamber, the oil duct has been seted up to the both sides of reel, the top fixed mounting of oil duct has the oiling valve, the lower extreme and the grease chamber intercommunication of oil duct, logical oil ring groove has been seted up in the reel, logical groove with the grease chamber intercommunication is seted up to the lower part of logical oil ring groove, the inside of reel has transversely been seted up the valve opening, the one end and the mounting groove intercommunication of valve opening, the other end and the logical groove intercommunication of valve opening, the other end sliding sleeve of valve opening has a switching mechanism, the oil spout has been seted up to the surface of reel, the oil spout is that array distribution's perpendicular groove and the horizontal groove that communicates all perpendicular grooves constitutes, the upper part of the oil through ring groove is communicated with an oil injection port.
Preferably, the oil filling valve is a check valve having a communication direction toward the oil passage.
Preferably, the switch mechanism is composed of a sealing plate with a hole and a spring, when the valve hole is pressurized, the sealing plate extrudes the spring to move, and the hole in the sealing plate is matched with the through groove.
Preferably, the oil spray openings are uniformly distributed on the outer surface of the winding drum.
The invention has the following beneficial effects:
1. according to the invention, the pressing plates are fixedly arranged on the lower surfaces of the speed reducer, the power device and the brake, the pressing springs are uniformly and fixedly arranged on the lower surfaces of the pressing plates, the overweight signal emitting column is fixedly arranged on the lower surface of the pressing plate, the overweight signal emitting column is positioned in an inner ring of the pressing spring, and the overweight signal receiving sleeve is fixedly arranged on the lower surface of an inner cavity of the outer sleeve, so that when a steel rope hanging object on the winding drum bears gravity, the pressing plate is firstly pulled to move downwards to compress the pressing spring, and when the weight of the hanging object causes the bottom surface of the overweight signal emitting column to be in contact fit with the overweight signal receiving sleeve, namely the weight of the hanging object exceeds the load of the power device, the hanging object needs to be deleted and repacked, the frequent overload work of the power device is prevented, and the service life of the power device is prolonged.
2. According to the invention, the expansion plates are movably sleeved in the circumferential direction of the winding drum, the air bag is communicated with the air holes and the air grooves, so that when the steel rope wound by the winding drum lifts an object, the steel rope is tensioned by tensile force, the pressing plate is driven to press downwards, compressed air in the air bag is injected into the inner hole through the two-way valve and the air grooves for pressurization, the expansion plates are pushed outwards, the steel rope wound on the outer surface of the winding drum can be expanded, the steel rope is prevented from being tensioned to cause the mutual friction of the steel ropes wound on the outer surface of the winding drum when the steel rope lifts the object, and the service life of the steel rope is ensured.
3. According to the invention, the oil chamber is fixedly arranged at two ends of the inner hole and positioned on the outer surface of the sealing sleeve, the push rod is movably sleeved in the oil chamber, the oil through ring groove is formed in the winding drum, the groove communicated with the oil chamber is formed in the lower part of the oil through ring groove, the oil injection port is communicated with the upper part of the oil through ring groove, so that after the steel rope wound on the outer surface of the winding drum is hung on an object, the press plate moves downwards to inject air pressure in the air bag into the inner hole, the push rod can be extruded and moved, lubricating and cooling oil in the oil chamber is sprayed out, the spraying amount is changed according to the weight of the hung object, no additional pump is required for spraying the lubricating and cooling oil, the electrical control of equipment is simpler, and the service life of the steel rope is ensured.
Drawings
FIG. 1 is a front cross-sectional view of the present invention;
FIG. 2 is a side cross-sectional view of the present invention;
FIG. 3 is a front view of the reel of the present invention;
FIG. 4 is a cross-sectional view of an injector of the present invention;
FIG. 5 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;
FIG. 6 is a top view of the mounting groove of the present invention.
In the figure: 1. a reel; 2. a speed reducer; 3. a power plant; 4. a brake; 5. an inner bore; 6. a coupling; 7. a rotating shaft; 8. pressing a plate; 9. a jacket; 10. a pressure spring; 11. an overweight signaling column; 12. an over-weight signal receiving sleeve; 13. an air bag; 14. air holes; 15. a two-way valve; 16. an air tank; 17. an expansion plate; 18. an oil chamber; 19. a push rod; 20. an oil passage; 21. an oil filling valve; 22. an oil through ring groove; 23. a valve bore; 24. a switch mechanism; 25. an oil injection port; 26. a rope guide; 27. a housing; 28. sealing sleeves; 29. a rope opening; 30. an air tube; 31. a through groove; 32. and (4) mounting the groove.
Detailed Description
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. 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.
As shown in fig. 1 to 6, in an embodiment of the present invention, an electrically controlled hoist for a crane includes a winding drum 1, a speed reducer 2 is movably installed on a left side of the winding drum 1, a power device 3 is movably sleeved on a right side of the winding drum 1, a brake 4 is sleeved on a right side bearing of an output shaft of the power device 3, an inner hole 5 is formed in the winding drum 1, a coupling 6 is movably sleeved in a middle portion of the inner hole 5, a rotating shaft 7 is respectively screwed on left and right ends of the coupling 6, the left rotating shaft 7 is movably sleeved with the speed reducer 2, the right rotating shaft 7 penetrates through the power device 3 and is movably sleeved with the brake 4, the right rotating shaft 7 is fixedly installed with the power device 3, a housing 27 is fixedly installed on an outer ring of one side of the speed reducer 2, the winding drum 1 is sleeved in the housing 27, a steel rope is wound on an outer surface of the winding drum 1, a rope guide 26 is slidably sleeved on one side of the housing 27, and the speed reducer 2, A pressing plate 8 is fixedly arranged on the lower surfaces of the power device 3 and the brake 4, a sleeve 9 is movably sleeved on the outer surface of the pressing plate 8, a rope opening 29 is formed in one side of the bottom surface of the sleeve 9, the winding drum 1, the speed reducer 2, the power device 3 and the brake 4 are sleeved in the sleeve 9, uniformly distributed compression springs 10 are fixedly arranged on the lower surface of the pressing plate 8, the lower ends of the compression springs 10 are fixedly arranged with the lower surface of the inner cavity of the sleeve 9, an overweight signal sending post 11 is fixedly arranged on the lower surface of the pressing plate 8 and is positioned on the inner ring of the compression spring 10, an overweight signal receiving sleeve 12 is fixedly arranged on the lower surface of the inner cavity of the sleeve 9, so that when a steel rope hanging object on the winding drum 1 bears gravity, the pressing plate 8 is firstly pulled to move downwards to compress the compression springs 10, and when the weight of the hanging object causes the bottom surface of the overweight signal sending post 11 to be in contact fit with the overweight signal receiving sleeve 12, namely the weight of the hanging object exceeds the load of the power device 3, the hanging object is deleted and repacked to prevent the power device 3 from working frequently in overload, the service life of the power device 3 is prolonged, the overweight signal receiving sleeve 12 is of a vertical cylindrical structure, the overweight signal sending column 11 is movably sleeved in the inner cavity of the overweight signal receiving sleeve 12, so that the pressing plate 8 can be limited by the matching of the overweight signal sending column 11 and the overweight signal receiving sleeve 12 when bearing gravity to slide up and down, the steel rope is prevented from easily swinging when the hanging object is conveyed to drive the pressing plate 8 to swing, the pressing plate 8 is ensured to slide up and down only, the equipment is ensured to be stable in the working state, the middle part of the lower surface of the pressing plate 8 is fixedly provided with an air bag 13, the inside of the left rotating shaft 7 is provided with an air hole 14, the left end of the left rotating shaft 7 passes through the speed reducer 2, the left end of the left rotating shaft 7 is movably sleeved with a two-way valve 15, the left side of the two-way valve 15 is slidably installed with the inner surface of the outer sleeve 9, the lower part of the two-way valve 15 is communicated with the air bag 13 through an air pipe 30, an air groove 16 is formed in the circumferential direction of the outer surface of the coupler 6, expansion plates 17 distributed in the circumferential direction are movably sleeved in the winding drum 1 through a mounting groove 32, the expansion plates 17 and the mounting groove 32 are installed in a sliding and sealing mode, when a steel rope wound on the winding drum 1 lifts an object, the steel rope is tensioned by tensile force and can drive the pressing plate 8 to press downwards, compressed air in the air bag 13 is injected into the inner hole 5 through the two-way valve 15 and the air groove 16 to be pressurized, the expansion plates 17 are pushed outwards, the steel rope wound on the outer surface of the winding drum 1 can be expanded, the steel rope is prevented from being tensioned to cause mutual friction of the steel rope wound on the outer surface of the winding drum 1 when the object is lifted, the service life of the steel rope is ensured, a sealing sleeve 28 is fixedly sleeved in the inner part of the inner hole 5, the middle part of the sealing sleeve 28 is disconnected and is hermetically sleeved with the coupler 6, so that gas injected from the airbag 13 cannot escape through the rotation of the rotating shaft 7, and the outward expansion force of the rotating shaft 7 is ensured, oil chambers 18 are fixedly mounted at two ends of the inner hole 5, the oil chambers 18 are located on the outer surface of the sealing sleeve 28, one end of a push rod 19 is movably sleeved inside the oil chambers 18, the inner sides of the push rod 19 penetrate through the oil chambers 18, oil passages 20 are formed in two sides of the winding drum 1, oil injection valves 21 are fixedly mounted at the top ends of the oil passages 20, the lower ends of the oil passages 20 are communicated with the oil chambers 18, oil through ring grooves 22 are formed in the winding drum 1, through grooves 31 communicated with the oil chambers 18 are formed in the lower parts of the oil through ring grooves 22, valve holes 23 are transversely formed in the winding drum 1, one ends of the valve holes 23 are communicated with mounting grooves 32, the other ends of the valve holes 23 are communicated with the through grooves 31, a switching mechanism 24 is slidably sleeved at the other ends of the valve holes 23, the switching mechanism 24 is formed by a sealing plate and a spring with a hole, when the valve holes 23 are pressurized, the sealing plate extrudes the spring to move, the hole on the sealing plate is matched with the through groove 31, so that oil spraying of equipment is only carried out when the steel rope of a transported object bears gravity, the valve hole 23 is pressurized, and waste of oil is prevented, the outer surface of the winding drum 1 is provided with an oil spraying port 25, the oil spraying port 25 consists of vertical grooves distributed in an array and transverse grooves communicated with all the vertical grooves, the oil spraying port 25 is uniformly distributed on the outer surface of the winding drum 1, so that lubricating cooling oil is diffused from inside to outside, the winding drum rotates when the material is transported, the wound steel rope can be lubricated and cooled, the existing oil spraying is sprayed to the outer surface of the wound steel rope from the outside, the speed of the steel rope lubricated to an inner ring is slow, the lubricating effect of the steel rope is ensured, the oil spraying port 25 is communicated with the upper part of the oil through ring groove 22, so that the steel rope wound on the outer surface of the winding drum 1 is hung on the object, the pressure in the air bag 13 is injected into the inner hole 5 by downward movement of the pressing plate 8, can remove the 19 extrusion of push rod, thereby the lubricated cooling oil blowout in 18 with grease chamber, the blowout volume is according to the weight change of hanging the object, lubricated cooling oil's blowout need not additionally set up the pump, guarantee the life of steel cable, oiling valve 21 is the check valve of direction orientation oil duct 20 for switching on, make the lubricated cooling oil in 18 with grease chamber use up the back, only need with oil pipe and oiling valve 21 intercommunication, the oil pipe oil pressure is big, thereby in 18 with lubricated cooling oil injection grease chamber, it is convenient to refuel.
The working principle and the using process are as follows:
the steel rope hanging object on the winding drum 1 bears gravity, firstly the pressing plate 8 can be pulled to move downwards to compress the pressure spring 10, when the weight of the hanging object causes the bottom surface of the overweight signal sending column 11 to be in contact fit with the overweight signal receiving sleeve 12, namely the weight of the hanging object exceeds the load of the power device 3, the hanging object needs to be deleted and repacked, meanwhile, the steel rope can be tensioned due to the tensile force, the pressing plate 8 can be driven to press downwards, compressed gas in the air bag 13 is injected into the inner hole 5 through the two-way valve 15 and the air groove 16 to be pressurized, so that the expansion plate 17 is pushed outwards, the steel rope wound on the outer surface of the winding drum 1 can be expanded, when the pressing plate 8 moves downwards to inject the air pressure in the air bag 13 into the inner hole 5, the push rod 19 can be extruded and moved, lubricating and cooling oil in the oil chamber 18 is sprayed out, and the spraying amount is changed according to the weight of the hanging object.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an electric hoist for electrically controlled crane, includes reel (1), the left side movable mounting of reel (1) has reduction gear (2), the right side activity suit of reel (1) has power device (3), the right side bearing cover of power device (3) output shaft is equipped with stopper (4), hole (5) have been seted up to the inside of reel (1), the middle part activity suit of hole (5) has shaft coupling (6), equal threaded sleeve in both ends is equipped with pivot (7) about shaft coupling (6), left side pivot (7) and reduction gear (2) activity suit, right side pivot (7) link up power device (3) and stopper (4) activity suit, right side pivot (7) and power device (3) fixed mounting, the outer lane fixed mounting of reduction gear (2) one side has casing (27), reel (1) activity suit in casing (27), the surface of reel (1) is around rolling up there is the steel rope, one side sliding sleeve of casing (27) is equipped with fairlead (26), its characterized in that: the lower surfaces of the speed reducer (2), the power device (3) and the brake (4) are fixedly provided with a pressing plate (8), an outer sleeve (9) is movably sleeved on the outer surface of the pressing plate (8), a rope opening (29) is formed in one side of the bottom surface of the outer sleeve (9), the winding drum (1), the speed reducer (2), the power device (3) and the brake (4) are sleeved in the outer sleeve (9), the lower surface of the pressure plate (8) is fixedly provided with uniformly distributed pressure springs (10), the lower end of the pressure spring (10) is fixedly arranged with the lower surface of the inner cavity of the outer sleeve (9), the lower surface of the pressure plate (8) is fixedly provided with an overweight signal sending column (11), the overweight signal sending column (11) is located on an inner ring of the pressure spring (10), and the overweight signal receiving sleeve (12) is fixedly installed on the lower surface of the inner cavity of the outer sleeve (9).
2. An electrically controlled hoist block for cranes according to claim 1, characterized in that: the overweight signal receiving sleeve (12) is of a vertical cylindrical structure, and the overweight signal sending column (11) is movably sleeved in an inner cavity of the overweight signal receiving sleeve (12).
3. An electrically controlled hoist block for cranes according to claim 1, characterized in that: the middle part fixed mounting of clamp plate (8) lower surface has gasbag (13), the left side gas pocket (14), left side have been seted up to the inside of pivot (7), the left side reduction gear (2) are passed to the left end of pivot (7), the left side the left end movable sleeve of pivot (7) is equipped with two-way valve (15), the left side of two-way valve (15) and the interior surface slidable mounting of overcoat (9), trachea (30) and gasbag (13) intercommunication are passed through to the below of two-way valve (15), gas tank (16) have been seted up to the circumference of shaft coupling (6) surface, mounting groove (32) have been seted up to the surface of reel (1), the inside of reel (1) is equipped with expansion plate (17) that circumference distributes through mounting groove (32) movable sleeve.
4. An electrically controlled hoist block for cranes according to claim 1, characterized in that: the inside fixed cover of hole (5) is equipped with seal cover (28), the middle part disconnection and the disconnection department of seal cover (28) and the sealed suit of shaft coupling (6), the both ends fixed mounting of hole (5) has grease chamber (18), grease chamber (18) are located the surface of seal cover (28), the inside movable sleeve of grease chamber (18) is equipped with the one end of push rod (19), grease chamber (18) are passed to push rod (19) inboard, oil duct (20) have been seted up to the both sides of reel (1), the top fixed mounting of oil duct (20) has oiling valve (21), the lower extreme and the grease chamber (18) intercommunication of oil duct (20), logical oil ring groove (22) have been seted up in reel (1), logical groove (31) with grease chamber (18) intercommunication have been seted up to the lower part of logical oil ring groove (22), valve opening (23) have transversely been seted up to the inside of reel (1), the one end and the mounting groove (32) intercommunication of valve opening (23), the other end and the logical groove (31) intercommunication of valve opening (23), the other end sliding sleeve of valve opening (23) is equipped with on-off mechanism (24), nozzle (25) have been seted up to the surface of reel (1), nozzle (25) are array distribution's perpendicular groove and the all cross slots that erect the groove of intercommunication and constitute, the upper portion intercommunication nozzle (25) that leads to oil annular (22).
5. An electrically controlled hoist block for cranes according to claim 4, characterized in that: the oil filling valve (21) is a one-way valve with the conduction direction facing the oil passage (20).
6. An electrically controlled hoist block for cranes according to claim 4, characterized in that: the switch mechanism (24) is composed of a sealing plate and a spring, the sealing plate extrudes the spring to move when the valve hole (23) is pressurized, and the hole in the sealing plate is matched with the through groove (31).
7. An electrically controlled hoist block for cranes according to claim 4, characterized in that: the oil spray ports (25) are uniformly distributed on the outer surface of the winding drum (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210588678.0A CN114803915A (en) | 2022-05-26 | 2022-05-26 | Electric control electric hoist for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210588678.0A CN114803915A (en) | 2022-05-26 | 2022-05-26 | Electric control electric hoist for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114803915A true CN114803915A (en) | 2022-07-29 |
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ID=82518736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210588678.0A Pending CN114803915A (en) | 2022-05-26 | 2022-05-26 | Electric control electric hoist for crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN114803915A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201186858Y (en) * | 2008-01-14 | 2009-01-28 | 湖北银轮蒲起机械有限责任公司 | Wire rope electric gourd for metallurgy casting |
| JP2010076848A (en) * | 2008-09-24 | 2010-04-08 | Panasonic Electric Works Co Ltd | Lifting device |
| KR101783904B1 (en) * | 2017-05-18 | 2017-10-10 | 김종호 | Driving unit safety device of stage setting |
| CN108502761A (en) * | 2018-03-31 | 2018-09-07 | 江西中天机械有限公司 | A kind of boom hoisting of the derrick crane with overload self-unloading function |
| CN211110774U (en) * | 2019-10-18 | 2020-07-28 | 济宁山拓机电设备有限公司 | Hydraulic capstan capable of releasing rope freely through manual clutch |
| CN211283538U (en) * | 2019-10-18 | 2020-08-18 | 济宁山拓机电设备有限公司 | External clutch type hydraulic winch |
| CN214141357U (en) * | 2021-08-10 | 2021-09-07 | 河南省巴斯特起重机械有限公司 | Electric hoist with overload protection mechanism |
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2022
- 2022-05-26 CN CN202210588678.0A patent/CN114803915A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201186858Y (en) * | 2008-01-14 | 2009-01-28 | 湖北银轮蒲起机械有限责任公司 | Wire rope electric gourd for metallurgy casting |
| JP2010076848A (en) * | 2008-09-24 | 2010-04-08 | Panasonic Electric Works Co Ltd | Lifting device |
| KR101783904B1 (en) * | 2017-05-18 | 2017-10-10 | 김종호 | Driving unit safety device of stage setting |
| CN108502761A (en) * | 2018-03-31 | 2018-09-07 | 江西中天机械有限公司 | A kind of boom hoisting of the derrick crane with overload self-unloading function |
| CN211110774U (en) * | 2019-10-18 | 2020-07-28 | 济宁山拓机电设备有限公司 | Hydraulic capstan capable of releasing rope freely through manual clutch |
| CN211283538U (en) * | 2019-10-18 | 2020-08-18 | 济宁山拓机电设备有限公司 | External clutch type hydraulic winch |
| CN214141357U (en) * | 2021-08-10 | 2021-09-07 | 河南省巴斯特起重机械有限公司 | Electric hoist with overload protection mechanism |
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