CN220766348U - Electric hoist with insurance structure - Google Patents
Electric hoist with insurance structure Download PDFInfo
- Publication number
- CN220766348U CN220766348U CN202322232272.1U CN202322232272U CN220766348U CN 220766348 U CN220766348 U CN 220766348U CN 202322232272 U CN202322232272 U CN 202322232272U CN 220766348 U CN220766348 U CN 220766348U
- Authority
- CN
- China
- Prior art keywords
- electric hoist
- shell
- plate
- fixed
- fixing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004804 winding Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses an electric hoist with a safety structure, which comprises an electric hoist shell, wherein an inner cavity of the electric hoist shell is rotationally connected with a rotating shaft through a bearing, a winding roller is fixed on the surface of the rotating shaft, friction plates are arranged on two sides of the winding roller.
Description
Technical Field
The utility model relates to the technical field of electric hoists, in particular to an electric hoist with a safety structure.
Background
The electric hoist has compact structure, and the electric hoist with the motor axis vertical to the axis of the winding drum adopts a worm gear transmission device. The defects are as follows: the length dimension is large, the width dimension is large, the structure is thick, the mechanical efficiency is low, the processing is difficult, and the like. The hydraulic system is double-control, and the overflow regulating valve and the magnetic contact pressure gauge can accurately control the pressure. The electric appliance control department adopts low-voltage control, and the safety of a dominant system is improved.
In the existing product, a group of parking systems are arranged in the electric hoist, so that after the electric hoist stops running, a hoisted object is still kept to be suspended, but once the parking systems break down, the electric hoist cannot be scram, the hoisted object falls down if the electric hoist is light, safety accidents are caused if the electric hoist is heavy, and the traditional electric hoist lacks a safety precaution scheme system to carry out safety protection on mechanical faults possibly occurring.
Disclosure of Invention
The utility model aims to provide an electric hoist with a safety structure, which detects the rotation condition of a rotating shaft through a rotation speed sensor, and controls the positions of a first friction disc and a second friction disc through an independent control system by utilizing an electric push rod, so that a prepared safety braking system is added on an original parking system, the problem that the traditional electric hoist lacks a safety precaution scheme system is solved, and the safety accident caused by the failure of the traditional electric hoist parking system is avoided, thereby solving the problem in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an electric hoist with insurance structure, includes the electric hoist casing, the inner chamber of electric hoist casing is connected with the rotation axis through the bearing rotation, the fixed surface of rotation axis has the wind-up roll, the friction disc is all installed to the both sides of wind-up roll, one side of the inner chamber of electric hoist casing is provided with electromagnetic equipment, electromagnetic equipment is located the outside of rotation axis, first friction disc is installed to one side of electromagnetic equipment, the outside activity of rotation axis is provided with the second friction disc, first friction disc and second friction disc are located the both sides of wind-up roll, the top of first friction disc and second friction disc is fixed with first fixed plate and second fixed plate respectively, one side of first fixed plate is fixed with the connecting rod, the one end that the first fixed plate was kept away from to the connecting rod runs through the second fixed plate and is fixed with the limiting plate, be fixed with electric putter on the second fixed plate, electric putter's piston rod runs through the second fixed plate and with limiting plate fixed connection, the inside of electric hoist casing is provided with the rotational speed sensor that detects the rotation axis.
Preferably, one side of the second friction disc, which is far away from the wind-up roll, is fixed with a connecting pipe, and the outer side of the connecting pipe is sleeved with a limiting pipe fixed in the inner cavity of the electric hoist shell.
Preferably, the electric hoist comprises a first fixing plate and a second fixing plate, and is characterized by further comprising a box body fixed at the top of the electric hoist shell, wherein the box body is communicated with the electric hoist shell, and the first fixing plate and the second fixing plate extend to the inner cavity of the box body.
Preferably, the surface fixing of connecting rod has the spacing ring, the spacing ring is located between first fixed plate and the second fixed plate, the outside of connecting rod is provided with supporting spring, supporting spring is located between spacing ring and the second fixed plate.
Preferably, a sliding groove is formed in the inner cavity of the box body, a sliding block is connected to the inner cavity of the sliding groove in a sliding mode, and one opposite sides of the sliding block are respectively fixed to the surfaces of the limiting plate and the second fixing plate.
Preferably, the electric hoist further comprises a driving motor fixed on one side of the electric hoist shell, and an output shaft of the driving motor penetrates through an inner cavity of the electric hoist shell and is fixedly connected with one end of the rotating shaft.
Preferably, a through groove is formed in the bottom of the electric hoist shell, and the through groove is located below the winding roller.
Preferably, a control circuit board is arranged in the electric hoist shell and is electrically connected with the driving motor, the electric push rod, the electromagnetic equipment and the rotating speed sensor respectively.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the other group of second friction discs are arranged on the basis of the first friction discs originally arranged in the electric hoist shell, the limiting plate is pushed by the electric push rod to move with the second fixed plate, the first fixed plate and the second fixed plate are regulated to move in opposite directions, the first friction discs and the second friction discs are driven to contact with friction plates on two sides of the winding roller, so that the winding roller stops rotating, the phenomenon that electromagnetic equipment breaks down and the winding roller cannot be braked by the contact of the first friction discs and the friction plates can be effectively avoided, and as the electric push rod is controlled by the rotating speed sensor and the control circuit board, an independent control system is formed, the interference of the original electromagnetic system is avoided, and the safety of the device is improved.
2. According to the utility model, the second fixing plate is supported by the limiting ring through the arrangement of the supporting spring, so that the second friction disc connected with the second fixing plate is ensured to be in a separated state in a normal state, and the second friction disc is prevented from shaking and contacting with the friction plate.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic cross-sectional perspective view of the electric hoist housing and case of the present utility model;
fig. 3 is a schematic view of a partial perspective structure of the present utility model.
Reference numerals in the drawings: 1. an electric hoist shell; 2. a rotation shaft; 3. a wind-up roll; 4. a friction plate; 5. an electromagnetic device; 6. a first friction plate; 7. a second friction plate; 8. a first fixing plate; 9. a second fixing plate; 10. a connecting rod; 11. a limiting plate; 12. an electric push rod; 13. a rotation speed sensor; 14. a connecting pipe; 15. a limiting tube; 16. a case; 17. a limiting ring; 18. a support spring; 19. a chute; 20. a slide block; 21. a driving motor; 22. and (5) through grooves.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides an electric hoist with a safety structure as shown in figures 1-3, which comprises an electric hoist shell 1, wherein an inner cavity of the electric hoist shell 1 is rotationally connected with a rotating shaft 2 through a bearing, a wind-up roller 3 is fixed on the surface of the rotating shaft 2, friction plates 4 are arranged on two sides of the wind-up roller 3, electromagnetic equipment 5 is arranged on one side of the inner cavity of the electric hoist shell 1, the electromagnetic equipment 5 is positioned on the outer side of the rotating shaft 2, a first friction disk 6 is arranged on one side of the electromagnetic equipment 5, a second friction disk 7 is movably arranged on the outer side of the rotating shaft 2, the first friction disk 6 and the second friction disk 7 are positioned on two sides of the wind-up roller 3, a first fixed plate 8 and a second fixed plate 9 are respectively fixed on the tops of the first friction disk 6 and the second friction disk 7, a connecting rod 10 is fixed on one side of the first fixed plate 8, one end of the connecting rod 10, which is far away from the first fixed plate 9, is fixedly provided with a limiting plate 11, an electric push rod 12 is fixed on the second fixed plate 9, and the piston rod 12 penetrates through the second fixed plate 9 and is fixedly connected with the limiting plate 11, the rotating shaft 13, and the rotating speed sensor is arranged in the electric hoist shell 1, and is used for detecting the rotating speed of the rotating shaft 13;
through setting up another group of second friction disc 7 on the basis of the first friction disc 6 that originally sets up in electric hoist casing 1, utilize electric putter 12 to promote limiting plate 11 and second fixed plate 9 removal, adjust first fixed plate 8 and second fixed plate 9 and remove in opposite directions, drive the friction disc 4 contact of first friction disc 6 and second friction disc 7 and wind-up roll 3 both sides, make wind-up roll 3 stop rotating, can effectually avoid electromagnetic equipment 5 to break down and can't utilize first friction disc 6 and friction disc 4 contact to stop wind-up roll 3, because electric putter 12 is controlled by rotational speed sensor 13 and control circuit board, form solitary control system, avoid original electromagnetic system's interference, the security of hoisting device.
One side of the second friction disc 7, which is far away from the wind-up roll 3, is fixed with a connecting pipe 14, a limiting pipe 15 fixed in the inner cavity of the electric hoist shell 1 is sleeved outside the connecting pipe 14, and the stability of the second friction disc 7 and the second fixing plate 9 is guaranteed through the arrangement of the connecting rod 10 and the limiting pipe 15, so that the second friction disc 7 is prevented from being contacted with the rotating shaft 2, and the rotating shaft 2 and the second friction disc 7 are prevented from being worn.
Still including being fixed in the box 16 at electric hoist casing 1 top, box 16 and electric hoist casing 1 intercommunication, first fixed plate 8 and second fixed plate 9 all extend to the inner chamber of box 16, through the setting of box 16, increase the inner space of electric hoist casing 1.
The surface mounting of connecting rod 10 has spacing ring 17, and spacing ring 17 is located between first fixed plate 8 and the second fixed plate 9, and the outside of connecting rod 10 is provided with supporting spring 18, and supporting spring 18 is located between spacing ring 17 and the second fixed plate 9, through the setting of supporting spring 18, utilizes spacing ring 17 to support second fixed plate 9, and the second friction disk 7 that the guarantee second fixed plate 9 is connected is in the separation state under the normal condition with friction disc 4, avoids second friction disk 7 rocking and friction disc 4 contact.
The inner chamber of box 16 has seted up spout 19, and the inner chamber sliding connection of spout 19 has slider 20, and slider 20 opposite one side is fixed in the surface of limiting plate 11 and second fixed plate 9 respectively, slides at the inner chamber of spout 19 through slider 20, conveniently carries out spacing to second fixed plate 9 and limiting plate 11, ensures that second fixed plate 9 and limiting plate 11 steadily move in the inside of box 16.
Still including being fixed in driving motor 21 of electric hoist casing 1 one side, driving motor 21's output shaft runs through to electric hoist casing 1's inner chamber and with the one end fixed connection of rotation axis 2, conveniently drives rotation axis 2 through driving motor 21, utilizes wind-up roll 3 to wind wire rope, promotes the hoist and mount goods.
The through groove 22 is formed in the bottom of the electric hoist shell 1, the through groove 22 is located below the winding roller 3, through the arrangement of the through groove 22, a steel wire rope wound on the winding roller 3 can enter and exit conveniently, and meanwhile the steel wire rope can be wound on the surface of the winding roller 3 conveniently.
The inside control circuit board that is provided with of electric hoist casing 1, and control circuit board respectively with driving motor 21, electric putter 12, electromagnetic equipment 5 and rotational speed sensor 13 electric connection, through the setting of control circuit board, conveniently receive the detected signal of rotational speed sensor 13 to rotational speed 2, then control electric putter 12 work, realize carrying out scram to wind-up roll 3 under electromagnetic equipment 5 trouble's circumstances.
When the electromagnetic equipment 5 works normally, the winding roller 3 needs to be suspended, the driving motor 21 is controlled to stop working through the control circuit board, meanwhile, the electromagnetic equipment 5 works and drives the first friction disk 6 to move rightwards, the winding drum is decelerated until stopping by the contact of the first friction disk 6 and the friction plate 4 and kept still, after the electromagnetic equipment 5 breaks down, the winding roller 3 cannot be limited by the contact of the first friction disk 6 and the friction plate 4, the normal driving motor 21 has the maximum conveying power, the rotating shaft 2 can reach the maximum rotating speed, when the rotating speed sensor 13 detects that the rotating speed of the rotating shaft 2 is abnormal, a detection signal is transmitted to the control circuit board, then the control circuit board controls the starting of the electric push rod 12, a piston rod of the electric push rod 12 drives the limiting plate 11 to be separated from the second fixed plate 9 by a distance, then the limiting plate 11 reduces the distance between the first fixed plate 8 and the second fixed plate 9 through the connecting rod 10, and then the first fixed plate 8 and the second fixed plate 9 drive the first friction disk 6 and the second friction plate 7 to enable the winding roller 3 to be close to the winding drum 4, and the rotating shaft 3 to be in contact with the friction plate 4, and the electric hoist 2 can be safely limited.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An electric hoist with insurance structure, its characterized in that: the electric hoist comprises an electric hoist shell (1), a rotating shaft (2) is rotatably connected to an inner cavity of the electric hoist shell (1) through a bearing, a winding roller (3) is fixedly arranged on the surface of the rotating shaft (2), friction plates (4) are respectively arranged on two sides of the winding roller (3), electromagnetic equipment (5) are arranged on one side of the inner cavity of the electric hoist shell (1), the electromagnetic equipment (5) is located on the outer side of the rotating shaft (2), a first friction plate (6) is arranged on one side of the electromagnetic equipment (5), a second friction plate (7) is movably arranged on the outer side of the rotating shaft (2), the first friction plate (6) and the second friction plate (7) are located on two sides of the winding roller (3), a first fixing plate (8) and a second fixing plate (9) are respectively fixed on the top of the first friction plate (6) and the second friction plate (7), a connecting rod (10) is fixed on one side of the first fixing plate (8), one end of the connecting rod (10) far away from the first fixing plate (8) penetrates through the second fixing plate (9) and is fixedly connected with an electric push rod (12) and penetrates through the second fixing plate (11), a rotating speed sensor (13) for detecting the rotating speed of the rotating shaft (2) is arranged in the electric hoist shell (1).
2. The electric hoist with safety structure according to claim 1, wherein: one side of the second friction disc (7) far away from the wind-up roll (3) is fixedly provided with a connecting pipe (14), and the outer side of the connecting pipe (14) is sleeved with a limiting pipe (15) fixed in the inner cavity of the electric hoist shell (1).
3. The electric hoist with safety structure according to claim 1, wherein: the electric hoist shell is characterized by further comprising a box body (16) fixed at the top of the electric hoist shell (1), wherein the box body (16) is communicated with the electric hoist shell (1), and the first fixing plate (8) and the second fixing plate (9) are both extended to the inner cavity of the box body (16).
4. The electric hoist with safety structure according to claim 1, wherein: the surface mounting of connecting rod (10) is equipped with spacing ring (17), spacing ring (17) are located between first fixed plate (8) and second fixed plate (9), the outside of connecting rod (10) is provided with supporting spring (18), supporting spring (18) are located between spacing ring (17) and second fixed plate (9).
5. An electric hoist with safety structure according to claim 3, characterized in that: the inner cavity of the box body (16) is provided with a sliding groove (19), the inner cavity of the sliding groove (19) is connected with a sliding block (20) in a sliding mode, and one opposite sides of the sliding block (20) are respectively fixed on the surfaces of the limiting plate (11) and the second fixing plate (9).
6. The electric hoist with safety structure according to claim 1, wherein: the electric hoist is characterized by further comprising a driving motor (21) fixed on one side of the electric hoist shell (1), and an output shaft of the driving motor (21) penetrates through an inner cavity of the electric hoist shell (1) and is fixedly connected with one end of the rotating shaft (2).
7. The electric hoist with safety structure according to claim 1, wherein: a through groove (22) is formed in the bottom of the electric hoist shell (1), and the through groove (22) is located below the winding roller (3).
8. The electric hoist with safety structure according to claim 1, wherein: the electric hoist is characterized in that a control circuit board is arranged inside the electric hoist shell (1) and is electrically connected with the driving motor (21), the electric push rod (12), the electromagnetic equipment (5) and the rotating speed sensor (13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322232272.1U CN220766348U (en) | 2023-08-18 | 2023-08-18 | Electric hoist with insurance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322232272.1U CN220766348U (en) | 2023-08-18 | 2023-08-18 | Electric hoist with insurance structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220766348U true CN220766348U (en) | 2024-04-12 |
Family
ID=90611031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322232272.1U Active CN220766348U (en) | 2023-08-18 | 2023-08-18 | Electric hoist with insurance structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220766348U (en) |
-
2023
- 2023-08-18 CN CN202322232272.1U patent/CN220766348U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103407920A (en) | Intelligent deep hole rope winch driven by variable frequency motor | |
| CN114634127B (en) | Servo hoist with antiwind function | |
| CN220766348U (en) | Electric hoist with insurance structure | |
| CN102530749A (en) | Novel crane luffing mechanism | |
| CN218754435U (en) | Permanent magnet motor external mine hoist | |
| CN115417279B (en) | Inner rotor permanent magnet synchronous safe energy-saving traction machine | |
| CN201049870Y (en) | Braking drum safety device | |
| CN101327898B (en) | Braking drum safety device | |
| CN216737341U (en) | Winching machine for power line construction | |
| CN113415752B (en) | Brake device of elevator | |
| CN214935608U (en) | Band-type brake mechanism and winch applying same | |
| CN210973681U (en) | Rope guiding device for explosion-proof hoist and explosion-proof hoist | |
| CN104828727A (en) | Electric hoist revolving crane | |
| CN202429929U (en) | Novel crane luffing mechanism | |
| CN209940304U (en) | Emergency braking device for lifting of crane | |
| CN210419071U (en) | Safety braking electric hoist for crane | |
| CN210366755U (en) | Double-beam trolley type internal translation electric hoist | |
| CN210559062U (en) | Overspeed protection device for crane | |
| CN214087205U (en) | Emergency braking equipment of mine hoist | |
| CN112429665A (en) | Winch with positioning structure for vehicle-mounted hoisting | |
| CN104649167A (en) | Electric rotating crane | |
| CN111943069A (en) | Inner rotor low-speed large-torque permanent magnet direct-drive electric winch device | |
| CN211097545U (en) | Stage suspends in midair and uses pulley gear | |
| CN220702963U (en) | Single rope winding type mine hoist | |
| CN217578134U (en) | Winch with speed limiting assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |