CN116969324B - Energy-saving electric hoist - Google Patents
Energy-saving electric hoist Download PDFInfo
- Publication number
- CN116969324B CN116969324B CN202311232329.6A CN202311232329A CN116969324B CN 116969324 B CN116969324 B CN 116969324B CN 202311232329 A CN202311232329 A CN 202311232329A CN 116969324 B CN116969324 B CN 116969324B
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- Prior art keywords
- winding drum
- iron core
- input shaft
- movable
- driving device
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- 238000004804 winding Methods 0.000 claims abstract description 80
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 60
- 230000003068 static effect Effects 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000000670 limiting effect Effects 0.000 claims description 4
- 230000002829 reductive effect Effects 0.000 abstract description 6
- 230000002441 reversible effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
- B66C11/04—Underhung trolleys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
- B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to an energy-saving electric hoist in the technical field of electric hoists, which comprises a walking assembly, a reel shell, a reel, an anti-reverse transmission assembly and a three-in-one driving device, wherein the reel shell is arranged at the bottom of the walking assembly; the winding drum is coaxially and rotatably connected to the inner cavity of the winding drum shell, the winding drum input shaft extends out of the winding drum shell, and the surface of the winding drum input shaft end is provided with a mounting hole; the three-in-one driving device is arranged on the end face of the winding drum shell corresponding to the winding drum input shaft, and an output shaft of the three-in-one driving device is in driving connection with a corresponding winding drum shaft head through an anti-reverse transmission assembly; the invention solves the technical problem brought by the arrangement that the axis of the motor is perpendicular to the axis of the winding drum by using the reverse-proof transmission assembly and the planetary reducer to replace a worm gear reducer; through the arrangement of the coil winding, the technical problem of large axial size of the brake in the prior art is solved, and the volume of the electric hoist can be reduced as a whole, so that corresponding hoisting equipment is more energy-saving.
Description
Technical Field
The invention relates to the technical field of electric hoists, in particular to an energy-saving electric hoist.
Background
The electric hoist is special hoisting equipment, is arranged on the crown block and the gantry crane, has the characteristics of simple operation, convenient use and the like, and is used for places such as industrial and mining enterprises, storage, wharfs and the like.
The existing electric hoist generally adopts a worm gear reducer on the electric hoist with the motor axis vertical to the reel axis, so as to realize the functions of reducing speed and preventing reverse transmission. The defects are that the length dimension is large, the width dimension is large, the structure is thick (the dead weight is large, the energy conservation is not facilitated), the mechanical efficiency is low, the processing is difficult, and the like; the braking is realized through the electromagnetic brake, so that the electromagnetic brake and the motor action are required to be kept synchronous, and the control is complicated; the electromagnetic brake is realized by locking a brake disc through a brake pad, so that the transmission efficiency is low and the brake sensitivity is low;
we have devised an energy-saving electric hoist.
Summary of the invention
In order to overcome the defects in the background technology, the invention discloses an energy-saving electric hoist.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
an energy-saving electric hoist comprising:
a walking assembly;
the winding drum shell is arranged at the bottom of the walking assembly;
the winding drum is coaxially and rotatably connected to the inner cavity of the winding drum shell, the winding drum input shaft extends out of the winding drum shell, and the surface of the winding drum input shaft end is provided with a mounting hole;
the three-in-one driving device is arranged on the end face of the winding drum shell corresponding to the winding drum input shaft, and an output shaft of the three-in-one driving device is in driving connection with the winding drum input shaft through an anti-reverse transmission assembly;
wherein, prevent reverse drive assembly includes:
one end of the movable wedge block is axially matched and inserted into the mounting hole, the other end of the movable wedge block is an isosceles end, and a compression spring is arranged between the movable wedge block and the bottom of the mounting hole;
the fixed sleeve is arranged on the end face of the reel shell corresponding to the reel input shaft and is coaxially sleeved on the reel input shaft; a clamping structure is arranged between the inner wall of the fixed sleeve and the outer side surface of the isosceles end part of the movable wedge block so as to facilitate the movable wedge block to axially move to be clamped or to release the clamping on the fixed sleeve;
the end face of the output shaft of the three-in-one driving device is provided with a matching part matched with the waist-shaped end parts such as the movable wedge block and the like, so that the output shaft of the three-in-one driving device drives the movable wedge block to axially move, the clamping structure is enabled to be released from clamping, and the movable wedge block is driven to move circularly.
Preferably, the outer side surface of the waist-shaped end part such as the movable wedge block is provided with a latch; the fixed cover inner wall corresponds the position of latch and is equipped with the bellying, and the even spacer ring in bellying internal ring face along its circumference is equipped with a plurality of draw-in grooves, and the draw-in groove corresponds the one end opening of reel input shaft for the latch cooperates with the draw-in groove and constitutes the block structure.
Preferably, a plurality of mounting holes are formed in the end face of the winding drum input shaft along the circumferential direction of the winding drum input shaft uniformly in a spacing ring, and each mounting hole is matched and inserted with one movable wedge block.
Preferably, the bottom of the mounting hole is provided with a limiting piece capable of preventing the outer end part of the movable wedge block from being separated from the matching part.
Preferably, the two ends of the fixed sleeve are respectively connected with the spool input shaft and the output shaft of the three-in-one driving device in a coaxial rotation way.
Preferably, the three-in-one driving device includes:
the outer shell of the planetary reducer is correspondingly and fixedly connected to the end face of the outer shell of the winding drum, and the end face of the output shaft of the planetary reducer is provided with the matching part;
the double-shaft motor is arranged at one end of the planetary reducer, which is far away from the winding drum shell, and an output shaft of the double-shaft motor is correspondingly connected with an input shaft of the planetary reducer;
and the brake is arranged at one end of the double-shaft motor, which is away from the planetary reducer, and is used for braking the other output shaft of the double-shaft motor.
Preferably, the brake comprises a first brake plate, a first brake disc, a first movable iron core, a static iron core, a second movable iron core, a second brake disc and a second brake plate which are coaxially arranged in sequence, wherein the first brake plate, the first movable iron core, the static iron core, the second movable iron core and the second brake plate are connected through mounting bolts, and a plurality of coil windings capable of adsorbing the first movable iron core and the second movable iron core are uniformly arranged on the static iron core along the circumferential direction of the static iron core in a spacing ring manner; the static iron core is provided with a plurality of braking springs which penetrate through the static iron core in a movable mode along the circumferential direction of the static iron core uniformly at intervals, and two ends of each braking spring are respectively connected with the first movable iron core and the second movable iron core.
Preferably, the two ends of the mounting bolt are respectively sleeved with a connecting sleeve, the two connecting sleeves are symmetrically arranged at intervals, the connecting sleeve body is provided with a step surface opposite to the end surface of the static iron core on the same side, and a plurality of distance adjusting sheets are sleeved on the connecting sleeve body, which is positioned between the step surface and the static iron core, in a matching manner.
Preferably, one end of the winding drum shell, which is far away from the three-in-one driving device, is provided with a first encoder connected with the winding drum.
Preferably, the walking assembly comprises:
the middle part of the top surface of the installation block is provided with a U-shaped opening, the two side walls of the U-shaped opening of the installation block are symmetrically provided with travelling wheels along the length direction of the installation block, and the bottom of the installation block is provided with an installation part for installing the winding drum shell;
the driving structure is arranged on one side of the mounting block and is provided with two output shafts which synchronously rotate in the same direction, and the two output shafts are in driving connection with two travelling wheel axles on the same side;
wherein the mounting block is provided with a second encoder connected with any one of the travelling wheel shafts.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. because the reverse transmission component is arranged, the winding drum can only be driven by the three-in-one driving device to rotate, and the winding drum can not be reversely driven by the three-in-one driving device to rotate, when the three-in-one driving device is in a braking state, almost no power is transmitted between gear sets in the planetary reducer, so that the gear sets in the planetary reducer can be prevented from being damaged, and compared with the prior art, the method for controlling electromagnetic braking, the method has the advantages that no additional control is needed, the transmission efficiency is high, the braking sensitivity is high, reverse transmission torque is avoided, and the function of locking the winding drum is realized;
2. because the coil winding almost penetrates through the static iron core, the adsorption force of the coil winding to the movable iron core can be ensured under the condition of reducing the thickness of the static iron core, and further, the axial length of the whole brake is reduced under the condition of ensuring the braking effect and meeting the requirement of heavy-duty manufacturing, so that the energy conservation is facilitated;
3. due to the arrangement of the connecting sleeve and the distance adjusting piece, the braking gap can be more accurately adjusted after the brake disc is worn, so that the normal operation of the brake is ensured;
4. in the whole, the reverse-direction-preventing transmission assembly and the planetary reducer replace a worm gear reducer, so that the technical problem caused by the arrangement that the axis of a motor is perpendicular to the axis of a winding drum is solved; through the arrangement of the coil winding, the technical problem of large axial size of the brake in the prior art is solved, and the volume of the electric hoist can be reduced as a whole, so that corresponding hoisting equipment is more energy-saving.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of a reverse drive prevention assembly according to the present invention;
FIG. 4 is a radial cross-sectional view of an anti-reverse drive assembly of the present invention;
FIG. 5 is an axial cross-sectional view of the anti-reverse drive assembly of the present invention;
FIG. 6 is a schematic diagram of an explosion proof structure of the reverse drive assembly of the present invention;
FIG. 7 is a schematic view of a brake according to the present invention;
fig. 8 is an enlarged partial schematic view of I in fig. 7.
In the figure: 1. a walking assembly; 11. a mounting block; 12. a walking wheel; 13. a driving structure; 14. a second encoder; 2. a spool housing; 3. a reel; 31. a mounting hole; 32. a limiting piece; 4. an anti-reverse transmission assembly; 41. a movable wedge; 42. a compression spring; 43. a fixed sleeve; 431. a boss; 432. a clamping groove; 44. latch teeth; 5. a three-in-one driving device; 501. a mating portion; 51. a planetary reducer; 52. a biaxial motor; 53. a brake; 531. a first brake plate; 532. a first brake disc; 533. a first movable iron core; 534. a stationary core; 535. a second movable iron core; 536. the second brake disc; 537. a second brake plate; 538. installing a bolt; 539. a coil winding; 5310. a brake spring; 5311. connecting sleeves; 5311a, a step surface; 5312. distance adjusting pieces; 6. a first encoder.
Detailed Description
The present invention will be explained in detail by the following examples, and the purpose of the present invention is to protect all technical improvements within the scope of the present invention, and in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., only correspond to the drawings of the present application, and in order to facilitate description of the present invention, it is not necessary to indicate or imply that the apparatus or element referred to has a specific orientation.
An embodiment, with reference to fig. 1-2, of an energy-saving electric hoist, includes:
a walking assembly 1;
further, the traveling assembly 1 comprises a mounting block 11 and a driving structure 13, wherein a U-shaped opening is formed in the middle of the top surface of the mounting block 11, traveling wheels 12 are symmetrically arranged on two side walls of the U-shaped opening of the mounting block 11 along the length direction of the U-shaped opening, and a mounting part for mounting the winding drum shell 2 is arranged at the bottom of the mounting block 11; the driving structure 13 is arranged on one side of the mounting block 11, the driving structure 13 is provided with two output shafts which synchronously rotate in the same direction, and the two output shafts are in driving connection with the wheel shafts of the two travelling wheels 12 on the same side. The drive structure 13 includes a motor, a speed reducer, and a brake as necessary.
Two travelling wheels 12 at the same end of the mounting block 11 are arranged coaxially as required.
Furthermore, in order to be able to detect the position of the travelling assembly 1 on the crown block or gantry crane and the real-time speed of the travelling assembly 1 during travelling, the mounting block 11 is provided with a second encoder 14 connected to the axle of any travelling wheel 12;
the winding drum shell 2 is arranged at the bottom of the walking assembly 1; specifically, the top of the reel housing 2 is provided with a mounting structure matched with a mounting part in the mounting block 11;
the end of the spool housing 2 facing away from the three-in-one drive 5 is provided with a first encoder 6 connected to the spool 3, as required.
The winding drum 3 is coaxially and rotatably connected to the inner cavity of the winding drum shell 2, an input shaft of the winding drum 3 extends out of the winding drum shell 2, and an installation hole 31 is formed in the end face of the input shaft of the winding drum 3;
the three-in-one driving device 5 is arranged on the end face of the winding drum shell 2 corresponding to the input shaft of the winding drum 3, and an output shaft of the three-in-one driving device 5 is in driving connection with the input shaft of the winding drum 3 through the reverse-direction-preventing transmission assembly 4;
further, referring to fig. 1, the three-in-one driving device 5 is three-in-one of a planetary reducer 51, a dual-shaft motor 52 and a brake 53, wherein the dual shafts of the dual-shaft motor 52 are the same shaft.
Further, the outer casing of the planetary reducer 51 is correspondingly and fixedly connected to the end surface of the reel outer casing 2, and the end surface of the output shaft of the planetary reducer 51 is provided with a matching part 501; the double-shaft motor 52 is arranged at one end of the planetary reducer 51, which is far away from the reel shell 2, and an output shaft of the double-shaft motor 52 is correspondingly connected with an input shaft of the planetary reducer 51; a brake 53 is mounted on one end of the biaxial motor 52 facing away from the planetary reducer 51 for braking the other output shaft of the biaxial motor 52.
Referring to fig. 3-6, the anti-reverse drive assembly 4 comprises:
one end of the movable wedge block 41 is axially matched and inserted into the mounting hole 31, the other end of the movable wedge block 41 is an isosceles end, and a compression spring 42 is arranged between the movable wedge block 41 and the bottom of the mounting hole 31;
according to the requirement, the end face of the input shaft of the winding drum 3 is uniformly provided with a plurality of mounting holes 31 along the circumferential direction, and each mounting hole 31 is matched and inserted with a movable wedge 41.
The fixed sleeve 43 is arranged on the end surface of the reel shell 2 corresponding to the input shaft of the reel 3 and is coaxially sleeved on the input shaft of the reel 3; according to the requirement, the two ends of the fixed sleeve 43 are respectively connected with the input shaft of the winding drum 3 and the output shaft of the three-in-one driving device 5 in a coaxial rotation way; preferably, two ends of the fixed sleeve 43 are respectively connected with an input shaft of the winding drum 3 and an output shaft of the three-in-one driving device 5 through bearings;
according to the requirement, one end of the fixing sleeve 43 corresponding to the reel shell 2 is provided with a flange plate, and the flange plate is fixed on the reel shell 2 by bolts, so that the position of the fixing sleeve 43 is fixed.
A clamping structure is arranged between the inner wall of the fixed sleeve 43 and the outer side surface of the isosceles end part of the movable wedge 41 so as to facilitate the movable wedge 41 to axially move to be clamped or to be released from being clamped on the fixed sleeve 43, specifically, the movable wedge 41 axially moves towards the direction approaching to the winding drum 3, and the clamping structure can release the clamping; the movable wedge 41 axially moves in a direction away from the winding drum 3, and the clamping structure completes clamping fit;
according to the need, the clamping structure is: the outer side surface of the isosceles-shaped end part of the movable wedge block 41 is provided with a latch 44; the inner wall of the fixing sleeve 43 is provided with a protruding portion 431 corresponding to the position of the latch 44, the inner annular surface of the protruding portion 431 is uniformly provided with a plurality of clamping grooves 432 in a surrounding mode along the circumferential direction, and the clamping grooves 432 correspond to one end of the input shaft of the winding drum 3 and are open, so that the latch 44 and the clamping grooves 432 are matched to form a clamping structure.
Wherein, the end face of the output shaft of the three-in-one driving device 5 is provided with a matching part 501 matched with the isosceles end part of the movable wedge 41, so that the output shaft of the three-in-one driving device 5 drives the movable wedge 41 to axially move, and the clamping structure releases the clamping, thereby driving the movable wedge 41 to circularly move.
If necessary, when the movable wedge 41 moves a distance N in a direction approaching the spool 3, the engagement structure is disengaged, and when the movable wedge 41 moves a distance M in a direction approaching the spool 3, the outer end of the movable wedge 41 is disengaged from the engagement portion 501, wherein M is greater than N; preferably, M is 2.+ -. 0.2N.
When the three-in-one driving device 5 needs to drive the winding drum 3 to rotate, the output shaft of the three-in-one driving device 5 rotates, at the moment, under the cooperation of the matching part 501 and the inclined surface of the outer end part of the movable wedge 41, the movable wedge 41 axially moves to one side close to the winding drum 3, the movable wedge 41 drives the latch 44 to move and separate from the clamping groove 432, at the moment, the winding drum 3 can rotate relative to the fixed sleeve 43, meanwhile, the isosceles end part of the movable wedge 41 is not separated from the matching part 501, and the matching part 501 drives the movable wedge 41 to circularly move, so that the winding drum 3 is driven to rotate; when the output shaft of the three-in-one driving device 5 is not rotated due to operation, failure and the like, the movable wedge 41 is reset under the action of the compression spring 42, that is, when the movable wedge 41 moves axially to the side away from the winding drum 3, the latch 44 can be inserted into the latch groove 432, and at this time, the winding drum 3 cannot rotate relative to the fixed sleeve 43, so that the functions of preventing the winding drum 3 from transmitting torsion to the output shaft of the three-in-one driving device 5 in the input shaft direction and locking the winding drum 3 are realized.
The included angle of the outer end part of the movable wedge 41 is 90+/-20 degrees according to the requirement.
Further, referring to fig. 6, in order to reduce maintenance cost, a convex ring is installed on the end face of the output shaft of the three-in-one driving device 5, and the convex ring is provided with a matching part 501 for the matching insertion of the outer end part of the movable wedge 41; in this way, when the matching part 501 is damaged, the replacement of the output shaft of the planetary reducer 51 is replaced by the replacement convex ring, so that the replacement cost is lower.
Furthermore, the convex ring is formed by splicing a plurality of convex teeth, that is, the cavity between two adjacent convex teeth forms a matching part 501; the cavities between the outer ends of two adjacent movable wedges 41 can also be matched with the convex teeth according to the requirement; therefore, when the cavity wall is damaged, only the corresponding convex teeth can be replaced, and the replacement cost is further reduced.
In the second embodiment, referring to fig. 3, in the energy-saving electric hoist, in order to prevent the movable wedge 41 from being separated from the engaging portion 501 based on the first embodiment, a limiting member 32 capable of preventing the outer end portion of the movable wedge 41 from being separated from the engaging portion 501 is disposed at the bottom of the mounting hole 31; that is, when the outer end portion of the movable wedge 41 is correspondingly matched with the engagement portion 501, the distance between the stopper 32 and the movable wedge 41 is L, where L is greater than N and less than M.
In a third embodiment, referring to fig. 7, on the basis of the first or second embodiment, the brake 53 includes a first braking plate 531, a first brake disc 532, a first movable iron core 533, a static iron core 534, a second movable iron core 535, a second brake disc 536 and a second braking plate 537, which are coaxially arranged in sequence, the first braking plate 531, the first movable iron core 533, the static iron core 534, the second movable iron core 535 and the second braking plate 537 are connected by mounting bolts 538, and the static iron core 534 is uniformly provided with a plurality of coil windings 539 capable of adsorbing the first movable iron core 533 and the second movable iron core 535 in a spacing ring along the circumferential direction; the stationary iron core 534 is provided with a plurality of brake springs 5310 extending through it along its circumferential uniform space ring, and two ends of the brake springs 5310 are connected with the first movable iron core 533 and the second movable iron core 535, respectively.
The coil winding 539 almost penetrates through the static iron core 534, and compared with the electromagnetic brake in the prior art, under the condition of reducing the thickness of the static iron core 534 (specifically, the static iron core 534 in the brake can achieve 1/3 or even 1/4 of the thickness of the static iron core in the prior art, the adsorption force of the coil winding 539 on the movable iron core can still be ensured, the braking effect is ensured, and the axial length of the whole brake is reduced under the condition of meeting the requirement of heavy-duty braking, so that the energy conservation is facilitated.
In the fourth embodiment, referring to fig. 8, on the basis of the third embodiment, two ends of the mounting bolt 538 are sleeved with connecting sleeves 5311, the two connecting sleeves 5311 are symmetrically arranged at intervals, the connecting sleeves 5311 are sleeved with step surfaces 5311a opposite to the end surfaces of the static iron cores 534 on the same side, and a plurality of distance adjusting pieces 5312 are sleeved on the connecting sleeves 5311, which are located between the step surfaces 5311a and the static iron cores 534, in a matching manner.
Specifically, when the sum of the thicknesses of all the distance adjusting pieces 5312 located on the same side of the static iron core 534 is not greater than the thickness of the brake layers on two sides of the brake disc on the same side.
More specifically, when the sum of distances between the brake disc and the movable iron core and the brake plate is D under normal conditions, the thickness of each of the distance adjusting pieces 5312 is not greater than D; preferably, the thickness of the gauge 5312 is L/2.
When the brake disc is worn, that is to say, the brake layers on two sides of the brake disc are worn, the number of the side distance adjusting pieces 5312 is reduced, and the distance between the static iron core 534 and the brake disc is adjusted by locking the mounting bolts 538, so that a braking effect is ensured.
The invention has not been described in detail in the prior art, and it is apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and range of equivalency are intended to be embraced therein.
Claims (7)
1. Energy-saving electric block, its characterized in that includes:
a walking assembly (1);
the winding drum shell (2) is arranged at the bottom of the walking assembly (1);
the winding drum (3) is coaxially and rotatably connected to the inner cavity of the winding drum shell (2), an input shaft of the winding drum (3) extends out of the winding drum shell (2), and an installation hole (31) is formed in the end face of the input shaft of the winding drum (3);
the three-in-one driving device (5) is arranged on the end face of the winding drum shell (2) corresponding to the input shaft of the winding drum (3), and an output shaft of the three-in-one driving device (5) is in driving connection with the input shaft of the winding drum (3) through the reverse-direction-preventing transmission assembly (4);
wherein the reverse-proof transmission assembly (4) comprises:
one end part of the movable wedge block (41) is axially matched and inserted into the mounting hole (31), the other end part of the movable wedge block is an isosceles end part, and a compression spring (42) is arranged between the movable wedge block (41) and the bottom of the mounting hole (31);
the fixed sleeve (43) is arranged on the end face of the reel shell (2) corresponding to the input shaft of the reel (3) and is coaxially sleeved on the input shaft of the reel (3); a clamping structure is arranged between the inner wall of the fixed sleeve (43) and the outer side surface of the isosceles end part of the movable wedge block (41) so as to facilitate the movable wedge block (41) to axially move to be clamped or to release the clamping from the fixed sleeve (43);
the end face of the output shaft of the three-in-one driving device (5) is provided with a matching part (501) matched with the isosceles end part of the movable wedge block (41), so that the output shaft of the three-in-one driving device (5) drives the movable wedge block (41) to axially move, the clamping structure is enabled to be released from clamping, and the movable wedge block (41) is driven to circularly move;
the outer side surface of the isosceles-shaped end part of the movable wedge block (41) is provided with a latch (44); the inner wall of the fixed sleeve (43) is provided with a protruding part (431) corresponding to the latch (44), the inner annular surface of the protruding part (431) is uniformly provided with a plurality of clamping grooves (432) along the circumferential direction at intervals, and one end of each clamping groove (432) corresponding to the input shaft of the winding drum (3) is opened, so that the latch (44) and each clamping groove (432) are matched to form the clamping structure;
the two ends of the fixed sleeve (43) are respectively connected with the input shaft of the winding drum (3) and the output shaft of the three-in-one driving device (5) in a coaxial rotation way;
the three-in-one driving device (5) comprises:
the planetary reducer (51) is correspondingly and fixedly connected to the end face of the winding drum shell (2), and the matching part (501) is arranged on the end face of the output shaft of the planetary reducer (51);
the double-shaft motor (52) is arranged at one end of the planetary reducer (51) deviating from the winding drum shell (2), and an output shaft of the double-shaft motor (52) is correspondingly connected with an input shaft of the planetary reducer (51);
and the brake (53) is arranged at one end of the double-shaft motor (52) which is away from the planetary reducer (51) and is used for braking the other output shaft of the double-shaft motor (52).
2. The energy-saving electric hoist according to claim 1, characterized in that: the end face of the input shaft of the winding drum (3) is uniformly provided with a plurality of mounting holes (31) along the circumferential direction of the input shaft, and each mounting hole (31) is matched and inserted with one movable wedge block (41).
3. The energy-saving electric hoist according to claim 1 or 2, characterized in that: the bottom of the mounting hole (31) is provided with a limiting piece (32) which can prevent the outer end part of the movable wedge block (41) from being separated from the matching part (501).
4. The energy-saving electric hoist according to claim 1, characterized in that: the brake (53) comprises a first braking plate (531), a first brake disc (532), a first movable iron core (533), a static iron core (534), a second movable iron core (535), a second brake disc (536) and a second braking plate (537) which are coaxially arranged in sequence, wherein the first braking plate (531), the first movable iron core (533), the static iron core (534), the second movable iron core (535) and the second braking plate (537) are connected through mounting bolts (538), and a plurality of coil windings (539) capable of adsorbing the first movable iron core (533) and the second movable iron core (535) are uniformly arranged on the static iron core (534) along the circumferential direction of the static iron core in a spacing ring manner; the static iron core (534) is provided with a plurality of braking springs (5310) which penetrate through the static iron core in a movable mode along the circumferential direction uniformly at intervals, and two ends of each braking spring (5310) are respectively connected with the first movable iron core (533) and the second movable iron core (535).
5. The energy-saving electric hoist as in claim 4, characterized in that: the mounting bolt (538) both ends all overlap and are equipped with adapter sleeve (5311), and two adapter sleeves (5311) symmetrical interval sets up, adapter sleeve (5311) cover body be equipped with the step face (5311 a) that homonymy quiet iron core (534) terminal surface is relative, and adapter sleeve (5311) cover body be located the position matching cover between step face (5311 a) and quiet iron core (534) and be equipped with a plurality of roll adjustment piece (5312).
6. The energy-saving electric hoist according to claim 1, characterized in that: one end of the winding drum shell (2) deviating from the three-in-one driving device (5) is provided with a first encoder (6) connected with the winding drum (3).
7. The energy-saving electric hoist according to claim 1, characterized in that: the walking assembly (1) comprises:
the middle of the top surface of the installation block (11) is provided with a U-shaped opening, two side walls of the U-shaped opening of the installation block (11) are symmetrically provided with travelling wheels (12) along the length direction of the U-shaped opening, and the bottom of the installation block (11) is provided with an installation part for installing the winding drum shell (2);
the driving structure (13) is arranged on one side of the mounting block (11), the driving structure (13) is provided with two output shafts which synchronously rotate in the same direction, and the two output shafts are in driving connection with the wheel shafts of the two travelling wheels (12) on the same side;
wherein the mounting block (11) is provided with a second encoder (14) connected with the wheel axle of any travelling wheel (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311232329.6A CN116969324B (en) | 2023-09-22 | 2023-09-22 | Energy-saving electric hoist |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311232329.6A CN116969324B (en) | 2023-09-22 | 2023-09-22 | Energy-saving electric hoist |
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| CN116969324A CN116969324A (en) | 2023-10-31 |
| CN116969324B true CN116969324B (en) | 2024-01-23 |
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| CN116969324A (en) | 2023-10-31 |
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