CN220265074U - Assembly structure of winding drum and driving device for electric hoist - Google Patents
Assembly structure of winding drum and driving device for electric hoist Download PDFInfo
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- CN220265074U CN220265074U CN202322585741.8U CN202322585741U CN220265074U CN 220265074 U CN220265074 U CN 220265074U CN 202322585741 U CN202322585741 U CN 202322585741U CN 220265074 U CN220265074 U CN 220265074U
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- driving device
- winding drum
- movable wedge
- wedge block
- input shaft
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- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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Abstract
The utility model relates to an assembly structure of a winding drum and a driving device for an electric hoist, which belongs to the technical field of electric hoists and comprises a mounting plate, wherein the winding drum and the driving device are respectively arranged on two sides of the mounting plate, an output shaft of the driving device is in driving connection with an input shaft of the winding drum, and the assembly structure also comprises an anti-reverse transmission assembly capable of preventing the input shaft of the winding drum from driving the output shaft of the driving device to rotate; because the reverse transmission component is arranged, the winding drum can only be driven by the driving device to rotate, and the winding drum can not be reversely driven by the driving device to rotate, when the driving device is in a braking state, almost no power is transmitted between gear sets in the speed reducer in the driving device, so that the damage of the gear sets in the speed reducer can be prevented, and compared with the mode of controlling electromagnetic braking in the prior art, the reverse transmission component has the advantages of no need of extra control, high transmission efficiency, high braking sensitivity, capability of avoiding reverse transmission torque and realizing the function of locking the winding drum.
Description
Technical Field
The utility model relates to the technical field of electric hoists, in particular to an assembly structure of a winding drum and a driving device for an 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 winding drum and the driving device in the existing electric hoist are almost all connected by adopting a coupling, and the hoisting equipment speed reducer is required to have a braking function, and the transmission mode is to input and install electromagnetic braking at the output end of a motor or the speed reducer, realize braking by controlling the electromagnetic braking, and the electromagnetic braking is required to be synchronous with the action of the motor, so that 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; in addition, under the braking attitude, the internal gear set of the speed reducer is always stressed, so that the gear set in the speed reducer is easy to damage, and in order to solve the problems, an assembly structure of a winding drum for the electric hoist and a driving device is designed.
Disclosure of Invention
In order to overcome the defects in the background art, the utility model discloses an assembly structure of a winding drum and a driving device for an electric hoist.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
the assembly structure of the winding drum and the driving device for the electric hoist comprises a mounting plate, wherein winding drums and the driving device are respectively arranged on two sides of the mounting plate, an output shaft of the driving device is in driving connection with an input shaft of the winding drum, and the assembly structure further comprises an anti-reverse transmission assembly capable of preventing the input shaft of the winding drum from driving the output shaft of the driving device to rotate;
the anti-reverse transmission assembly comprises a movable wedge block and a fixed sleeve, the fixed sleeve is fixedly arranged on a mounting plate and coaxially sleeved on a connection part of a winding drum and a driving device, a plurality of mounting holes are uniformly formed in the end face of an input shaft of the winding drum along the circumferential direction of the input shaft of the winding drum in a ring manner, each mounting hole is provided with the movable wedge block in a sliding fit manner along the axial direction of the input shaft of the winding drum, the outer end part of the movable wedge block is an isosceles end part and extends out of the mounting hole, a clamping structure is arranged between the outer end part of the movable wedge block and the fixed sleeve, and a compression spring is arranged between the bottom of the mounting hole and the movable wedge block; the end face of the output shaft of the driving device is provided with a matching part for matching the outer end part of the movable wedge block, so that the movable wedge block is driven to axially move when the output shaft of the driving device rotates, the clamping structure is enabled to release the clamping, and the movable wedge block is driven to circularly move.
Preferably, the outer side surface of the outer end part of 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 of bellying inner ring face along its circumference is equipped with a plurality of draw-in grooves that can with latch complex, and the draw-in groove corresponds the one end opening of reel input shaft.
Preferably, one end of the latch, which is away from the spool input shaft, is a conical end and/or one end of the clamping groove, which corresponds to the spool input shaft, is a bell mouth.
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 limiting piece is a reducing part corresponding to the inner section of the mounting hole or a limiting column corresponding to the inner cavity of the compression spring.
Preferably, both ends of the fixed sleeve extend to the outer sides of the spool input shaft and the driving device output shaft respectively and are connected with the spool input shaft and the driving device output shaft in a rotating mode respectively.
Preferably, the driving device comprises a planetary reducer, one end of the planetary reducer corresponding to the mounting plate is provided with a mounting support leg which is fixedly mounted on the mounting plate, an output shaft of the planetary reducer is connected with a winding drum input shaft through an anti-reverse transmission assembly, the input end of the planetary reducer is in transmission connection with a rotating shaft of a double-shaft motor, and the other rotating shaft of the double-shaft motor is provided with a brake.
Preferably, the brake is an electromagnetic disc brake.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
1. because the setting of reverse transmission component can only be driven the reel by drive arrangement and rotate, can not turn over the reel and drive arrangement and rotate, set up like this when drive arrangement is in the braking state, almost there is not the transmission of power between the gear train in the speed reducer in the drive arrangement, consequently can prevent that the gear train is impaired in the speed reducer, compare with the mode that the prior art was braked through controlling electromagnetic brake, can accomplish and need not extra control, transmission efficiency is high, brake sensitivity is high, avoid reverse transmission moment of torsion, and realize the function of locking the reel.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of an anti-reverse drive assembly according to the present utility model;
FIG. 3 is a radial cross-sectional view of the anti-reverse drive assembly of the present utility model;
FIG. 4 is an axial cross-sectional view of the anti-reverse drive assembly of the present utility model;
FIG. 5 is a schematic diagram of an explosion-proof structure of a reverse drive assembly according to the present utility model.
In the figure: 1. a mounting plate; 2. a reel; 21. a mounting hole; 22. a limiting piece; 3. a driving device; 301. a mating portion; 31. a planetary reducer; 311. mounting support legs; 32. a biaxial motor; 33. a brake; 4. an anti-reverse transmission assembly; 41. a movable wedge; 42. a fixed sleeve; 421. a boss; 422. a clamping groove; 43. a compression spring; 44. and (5) clamping teeth.
Detailed Description
The present utility model will be explained in detail by the following examples, and the purpose of the present utility model is to protect all technical improvements within the scope of the present utility model, and in the description of the present utility model, 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 utility model, it is not necessary to indicate or imply that the apparatus or element referred to has a specific orientation.
1-5, an assembly structure of a winding drum and a driving device for an electric hoist comprises a mounting plate 1, wherein winding drums 2 and driving devices 3 are respectively arranged on two sides of the mounting plate 1, an output shaft of each driving device 3 is in driving connection with an input shaft of the winding drum 2, and an anti-reverse transmission assembly 4 capable of preventing the input shaft of the winding drum 2 from driving the output shaft of each driving device 3 to rotate is further included; that is, due to the reverse transmission preventing component 4, the reel 2 can only be driven by the driving device 3 to rotate, and the reel 2 can not be reversely driven by the driving device 3 to rotate, so that when the driving device 3 is in a braking state, almost no power is transmitted between gear sets in a speed reducer in the driving device 3, and therefore, the damage of the gear sets in the speed reducer can be prevented.
Specifically, referring to fig. 3-5, the reverse-direction-preventing transmission assembly 4 includes a movable wedge 41 and a fixed sleeve 42, wherein the fixed sleeve 42 is fixedly mounted on the mounting plate 1, and is coaxially sleeved at the connection part of the winding drum 2 and the driving device 3;
further, both ends of the fixing sleeve 42 extend to the outer sides of the input shaft of the winding drum 2 and the output shaft of the driving device 3 respectively, and are connected with the input shaft of the winding drum 2 and the output shaft of the driving device 3 in a rotating manner respectively.
The end face of the input shaft of the winding drum 2 is uniformly and annularly provided with a plurality of mounting holes 21 along the circumferential direction, each mounting hole 21 is axially and slidably matched with a movable wedge 41, the outer end part of the movable wedge 41 is an isosceles end part and extends out of the mounting hole 21, a clamping structure is arranged between the outer end part of the movable wedge 41 and the fixed sleeve 42, and a compression spring 43 is arranged between the bottom of the mounting hole 21 and the movable wedge 41; the end face of the output shaft of the driving device 3 is provided with a matching part 301 for matching the outer end part of the movable wedge 41, so that the movable wedge 41 is driven to axially move when the output shaft of the driving device 3 rotates, the clamping structure is released from clamping, and the movable wedge 41 is driven to circularly move.
More specifically, when the movable wedge 41 moves in the direction approaching the spool 2 by a distance N, the engagement structure releases the engagement, and when the movable wedge 41 moves in the direction approaching the spool 2 by a distance M, the outer end of the movable wedge 41 is disengaged from the engagement portion 301, wherein M is greater than N; preferably, M is 2.+ -. 0.2N.
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. 4, in order to reduce maintenance cost, a convex ring is installed on the end face of the output shaft of the driving device 3, and the convex ring is provided with a matching part 301 for matching the outer end part of the movable wedge 41; in this way, when the engaging portion 301 is damaged, the output shaft of the driving device 3 is replaced by replacing the 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 is matched with the outer end part of the movable wedge 41, that is, the cavity between two convex teeth is the matching part 301; 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.
Further, with reference to fig. 3-5, the engaging structure is as follows: the outer side surface of the outer end part of the movable wedge block 41 is provided with a latch 44; the inner wall of the fixed sleeve 42 is provided with a protruding part 421 at a position corresponding to the latch 44, the inner annular surface of the protruding part 421 is uniformly provided with a plurality of clamping grooves 422 which can be matched with the latch 44 in a spacing way along the circumferential direction, and the clamping grooves 422 are opened corresponding to one end of the input shaft of the winding drum 2; when the movable wedge 41 is arranged to axially move to the side close to the winding drum 2, the latch 44 can be separated from the latch groove 422, and the winding drum 2 can rotate relative to the fixed sleeve 42; when the movable wedge 41 can also axially move to the side away from the winding drum 2, the latch 44 can be inserted into the latch groove 422, and at this time, the winding drum 2 cannot rotate relative to the fixed sleeve 42, so that the function of locking the winding drum 2 is realized.
Further, in order to ensure that the latch 44 can be smoothly inserted into the slot 422, one end of the latch 44 facing away from the input shaft of the spool 2 is a tapered end and/or one end of the slot 422 corresponding to the input shaft of the spool 2 is a bell mouth.
When the driving device 3 needs to drive the winding drum 2 to rotate, the output shaft of the driving device 3 rotates, at this moment, under the cooperation of the matching part 301 and the inclined plane of the outer end part of the movable wedge 41, when the movable wedge 41 moves axially to one side close to the winding drum 2, the movable wedge 41 drives the latch 44 to move and separate from the clamping groove 422, at this moment, the winding drum 2 can rotate relative to the fixed sleeve 42, and simultaneously, the outer end part of the movable wedge 41 is not separated from the matching part 301, and the matching part 301 drives the movable wedge 41 to move circumferentially, so as to drive the winding drum 2 to rotate; when the output shaft of the driving device 3 is not rotated due to operation, failure and the like, the movable wedge 41 is reset under the action of the compression spring 43, that is, when the movable wedge 41 moves axially to the side away from the winding drum 2, the latch 44 can be inserted into the latch groove 422, and at this time, the winding drum 2 cannot rotate relative to the fixed sleeve 42, so that the functions of preventing the winding drum 2 from being input into the output shaft of the axial driving device 3 to transmit torsion and locking the winding drum 2 are realized.
In the second embodiment, referring to fig. 3, in the assembled structure of the drum and the driving device for the electric hoist, in order to ensure that the movable wedge 41 cannot be separated from the matching portion 301, a limiting piece 22 capable of preventing the outer end portion of the movable wedge 41 from being separated from the matching portion 301 is arranged at the bottom of the mounting hole 21;
specifically, when the movable wedge 41 abuts against the limiting member 22, the latch 44 is in a position separated from the latch groove 422, and the outer end of the movable wedge 41 is in a position not separated from the engaging portion 301.
Further, the limiting member 22 is a reduced diameter portion corresponding to the inner section of the mounting hole 21 or a limiting post corresponding to the inner cavity of the compression spring 43.
If necessary, the diameter-reduced portion may be: the positioning sleeve is sleeved on the compression spring 43, and is embedded into the inner section of the mounting hole 21 to form a diameter-reducing part similar to the inner section of the mounting hole 21.
In a third embodiment, referring to fig. 1, in an assembly structure of a drum and a driving device for an electric hoist, on the basis of the first or second embodiment, the driving device 3 includes a planetary reducer 31, one end of the planetary reducer 31 corresponding to the mounting plate 1 is provided with a mounting leg 311, the mounting leg 311 is fixedly mounted on the mounting plate 1, an output shaft of the planetary reducer 31 is connected to an input shaft of the drum 2 through an anti-reverse transmission assembly 4, an input end of the planetary reducer 31 is in transmission connection with a rotating shaft of a dual-shaft motor 32, and another rotating shaft of the dual-shaft motor 32 is provided with a brake 33.
The biaxial motor 32 is: has two output shafts, and the two output shafts rotate synchronously, or the two output shafts are the same shaft.
Further, the brake 33 is an electromagnetic disc brake.
The utility model has not been described in detail in the prior art, and it is apparent to those skilled in the art that the utility model is not limited to the details of the above-described exemplary embodiments, but that the utility model 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 (8)
1. The utility model provides an assembly structure of reel and drive arrangement for electric block, includes mounting panel (1), and mounting panel (1) both sides are equipped with reel (2) and drive arrangement (3) respectively, and drive arrangement (3) output shaft is connected its characterized in that with the input shaft drive of reel (2): the anti-reverse transmission assembly (4) can prevent the input shaft of the winding drum (2) from driving the output shaft of the driving device (3) to rotate;
the anti-reverse transmission assembly (4) comprises a movable wedge block (41) and a fixed sleeve (42), the fixed sleeve (42) is fixedly arranged on a mounting plate (1), the connecting part of the winding drum (2) and the driving device (3) is coaxially sleeved, a plurality of mounting holes (21) are uniformly formed in the circumferential direction of the end face of an input shaft of the winding drum (2), each mounting hole (21) is axially and slidably matched with the movable wedge block (41), the outer end part of the movable wedge block (41) is an isosceles end part and extends out of the mounting hole (21), and a clamping structure is arranged between the outer end part of the movable wedge block (41) and the fixed sleeve (42) so that the movable wedge block (41) is clamped with or released from the fixed sleeve (42) when the movable wedge block (41) axially moves; a compression spring (43) is arranged between the bottom of the mounting hole (21) and the movable wedge block (41); the end face of the output shaft of the driving device (3) is provided with a matching part (301) for matching the outer end part of the movable wedge block (41), so that the movable wedge block (41) is driven to axially move when the output shaft of the driving device (3) rotates, the clamping structure is enabled to be released from clamping, and then the movable wedge block (41) is driven to circularly move.
2. The assembling structure of a drum and a driving device for an electric hoist according to claim 1, characterized in that: the outer side surface of the outer end part of the movable wedge block (41) is provided with a latch (44); the fixed cover (42) inner wall corresponds the position of latch (44) and is equipped with bellying (421), and the even spacer ring in bellying (421) inner ring face along its circumference is equipped with a plurality of draw-in grooves (422) that can with latch (44) complex, and draw-in groove (422) correspond the one end of reel (2) input shaft and open.
3. The assembling structure of a drum and a driving device for an electric hoist according to claim 2, characterized in that: one end of the latch (44) deviating from the input shaft of the winding drum (2) is a conical end and/or one end of the clamping groove (422) corresponding to the input shaft of the winding drum (2) is a bell mouth.
4. The assembling structure of a drum and a driving device for an electric hoist according to claim 1, characterized in that: the bottom of the mounting hole (21) is provided with a limiting piece (22) which can prevent the outer end part of the movable wedge block (41) from being separated from the matching part (301).
5. The structure for assembling a drum and a driving device for an electric hoist according to claim 4, characterized in that: the limiting piece (22) is a reducing part corresponding to the inner section of the mounting hole (21) or a limiting column corresponding to the inner cavity of the compression spring (43).
6. The assembling structure of a drum and a driving device for an electric hoist according to claim 1, characterized in that: the two ends of the fixed sleeve (42) respectively extend to the outer sides of the input shaft of the winding drum (2) and the output shaft of the driving device (3) and are respectively connected with the input shaft of the winding drum (2) and the output shaft of the driving device (3) in a rotating way.
7. The assembling structure of a drum and a driving device for an electric hoist according to claim 1, characterized in that: the driving device (3) comprises a planetary reducer (31), one end of the planetary reducer (31) corresponding to the mounting plate (1) is provided with a mounting support leg (311), the mounting support leg (311) is fixedly mounted on the mounting plate (1), an output shaft of the planetary reducer (31) is connected to an input shaft of the winding drum (2) through an anti-reverse transmission assembly (4), an input end of the planetary reducer (31) is in transmission connection with a rotating shaft of a double-shaft motor (32), and the other rotating shaft of the double-shaft motor (32) is provided with a brake (33).
8. The assembling structure of a drum and a driving device for an electric hoist according to claim 7, characterized in that: the brake (33) is an electromagnetic disc brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322585741.8U CN220265074U (en) | 2023-09-22 | 2023-09-22 | Assembly structure of winding drum and driving device for electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322585741.8U CN220265074U (en) | 2023-09-22 | 2023-09-22 | Assembly structure of winding drum and driving device for electric hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220265074U true CN220265074U (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322585741.8U Active CN220265074U (en) | 2023-09-22 | 2023-09-22 | Assembly structure of winding drum and driving device for electric hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220265074U (en) |
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2023
- 2023-09-22 CN CN202322585741.8U patent/CN220265074U/en active Active
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