CN112478972A - Anti-falling braking device for freight elevator - Google Patents
Anti-falling braking device for freight elevator Download PDFInfo
- Publication number
- CN112478972A CN112478972A CN202011323604.1A CN202011323604A CN112478972A CN 112478972 A CN112478972 A CN 112478972A CN 202011323604 A CN202011323604 A CN 202011323604A CN 112478972 A CN112478972 A CN 112478972A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- equipment
- shaft
- driving
- freight elevator
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to the technical field of freight equipment and discloses an anti-falling braking device for a freight elevator, which comprises an equipment shell and eddy fins, wherein a connecting fulcrum shaft is fixedly connected to the inner wall of the equipment shell, a limiting snap ring is fixedly connected to the inner side of the connecting fulcrum shaft, and a rotating driving shaft is movably connected to the inside of the limiting snap ring. This freight transportation lift is with preventing weighing down arresting gear, lead to its sudden drop or sudden rising when lift platform because braking trouble or other reasons, it accelerates to rotate drive shaft slew velocity this moment, it rises to rotate the drive air current through the vortex fin, thereby promote pneumatic lapse piece along equipment casing rebound, the piezoelectric crystal surface receives external force and produces the electric current, promote the magnet piece right along the activity elongated slot, second negative plate electric connection is to lift platform's total braking system, control lift platform in time shuts down, prevent to cause loss of goods or personnel's injury, the security performance of equipment has been improved, and mechanical wear is less, long service life.
Description
Technical Field
The invention relates to the technical field of freight equipment, in particular to an anti-falling braking device for a freight elevator.
Background
Cargo lift is a jack-up lifting mechanical equipment, and it can make the transportation of lower floor about the goods completion through artifical button operation to control system, and cargo lift can divide into according to the type: a scissor-type cargo lift and a guide rail type cargo lift are mainly used for transporting high-altitude cargos such as a factory assembly line, a cargo warehouse, a parking lot, a wharf, a building, logistics and the like up and down, but if a braking fault occurs or the lifting equipment falls down rapidly due to fatigue of a connecting structure in the using process of the lifting equipment, the lifting equipment is very dangerous, the cargos can be damaged, and even the personal safety of workers is damaged.
Therefore, on the premise of protecting the safety of workers and goods, the existing lifting equipment needs to be improved, and the anti-falling emergency braking device is arranged, but most of the existing anti-falling structures are realized by adopting mechanical connection structures, the failure caused by mechanical abrasion is likely to happen even in long-term use, and the existing anti-falling devices can only be used for detecting the rapid descending process of the lifting device and can not detect the sudden ascending movement process of the lifting device, so that the anti-falling braking device for the freight elevator is provided for solving the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the anti-falling braking device for the freight elevator, which has the advantages of utilizing the vortex pneumatic principle, rapidly reacting to perform emergency braking when the elevator rapidly falls, improving the safety performance of the lifting equipment, and solving the problems that the existing anti-falling structure is also realized by adopting a mechanical connection structure, the failure is also possibly caused by mechanical abrasion after long-term use, and the existing anti-falling device can only be generally used for detecting the rapid falling process of the lifting device and cannot detect the sudden rising motion process of the lifting device.
(II) technical scheme
In order to realize the purposes of utilizing the principle of vortex pneumatics, rapidly reacting to perform emergency braking when the elevator rapidly falls and improving the safety performance of the lifting equipment, the invention provides the following technical scheme: an anti-falling brake device for a freight elevator comprises an equipment shell and eddy fins, wherein a connecting fulcrum shaft is fixedly connected to the inner wall of the equipment shell, a limiting snap ring is fixedly connected to the inner side of the connecting fulcrum shaft, a rotating driving shaft is movably connected to the inside of the limiting snap ring, a driving rotary drum is fixedly connected to the bottom of the rotating driving shaft, a moving chute is formed in the outer side of the driving rotary drum, a moving block is movably connected to the inside of the moving chute, a driving sleeve is fixedly connected to the outer side of the moving block, a driving connecting shaft is fixedly connected to the bottom of the driving sleeve, side fulcrum shafts which are uniformly distributed are fixedly connected to the outer side of the rotating driving shaft, the eddy fins are fixedly connected to the outer side of the side fulcrum shaft, a vent hole is formed in the, the movable elongated slot inner wall fixedly connected with reset spring, reset spring right side fixedly connected with magnet piece, the inside fixedly connected with of magnet piece dielectric plate, the intussuseption of movable elongated slot is filled with electrorheological fluids, the inside fixedly connected with of equipment casing has the first positive plate, the inside fixedly connected with of equipment casing corresponds to the first negative plate of first positive plate, the inside fixedly connected with second positive plate of equipment casing, the inside fixedly connected with of equipment casing corresponds to the second negative plate of second positive plate.
Preferably, the annular caulking groove has been seted up to spacing snap ring inside, and the inside swing joint of annular caulking groove has the stopper, and the inboard fixed connection of stopper is in the rotation drive shaft outside, through stopper and annular caulking groove activity joint for but the rotation drive shaft free rotation in spacing snap ring, nevertheless the restriction rotates the drive shaft and reciprocates.
Preferably, the moving sliding groove is of a continuous wave-shaped long groove structure, the moving sliding grooves are uniformly and continuously distributed on the outer side of the driving rotary drum, and the driving rotary drum is driven to do circular motion by the rotation of the moving block in the moving sliding groove in the up-and-down moving process of the driving sleeve.
Preferably, the bottom of the equipment shell is provided with an installation through hole corresponding to the driving connecting shaft, the bottom of the driving connecting shaft penetrates through the installation through hole to be fixedly connected to the top of the lifting platform, and the lifting platform drives the driving connecting shaft to move synchronously in the up-and-down moving process.
Preferably, the equipment shell is of a cylindrical structure, the pneumatic pushing block is of a corresponding circular structure, the outer diameter of the pneumatic pushing block corresponds to the inner diameter of the equipment shell, and the vortex fins rotate to drive airflow to rise, so that the pneumatic pushing block is pushed to move upwards along the equipment shell.
Preferably, the top of the pneumatic pushing block is fixedly connected with a jacking protrusion, the top of the jacking protrusion is in movable contact with the bottom of the piezoelectric crystal, a hollow cavity is formed in the pneumatic pushing block, the pneumatic pushing block moves upwards to a certain position, the jacking protrusion is in contact with the piezoelectric crystal, and the surface of the piezoelectric crystal is subjected to external force to generate current.
Preferably, the piezoelectric crystal is electrically connected to the electromagnet, the corresponding surface of the electromagnet and the magnet block has the same magnetism, and the electromagnet is electrified to have magnetism and generate repulsive force with the magnet block to push the magnet block rightwards along the movable long slot.
(III) advantageous effects
Compared with the prior art, the invention provides an anti-falling braking device for a freight elevator, which has the following beneficial effects:
1. this freight transportation lift is with preventing weighing down arresting gear, lead to its sudden drop or sudden rising when lift platform because braking trouble or other reasons, it accelerates to rotate drive shaft slew velocity this moment, it rises to rotate the drive air current through the vortex fin, thereby promote pneumatic lapse piece along equipment casing rebound, the piezoelectric crystal surface receives external force and produces the electric current, promote the magnet piece right along the activity elongated slot, second negative plate electric connection is to lift platform's total braking system, control lift platform in time shuts down, prevent to cause loss of goods or personnel's injury, the security performance of equipment has been improved, and mechanical wear is less, long service life.
2. According to the anti-falling braking device for the freight elevator, the first negative plate is electrically connected to the external electric field and is communicated with the external electric field, so that the electrorheological fluid is changed from a liquid state to a solid state, the position of the dielectric plate is fixed, the shutdown state is maintained, the restarting operation is carried out until an operator checks the equipment fault, and the safety performance and the stability of the equipment operation are improved.
Drawings
FIG. 1 is a side view of a piezoelectric crystal according to the present invention in an uncompressed state;
FIG. 2 is a side view of a piezoelectric crystal according to the present invention in a pressed state;
FIG. 3 is a schematic side view of a dielectric plate according to the present invention;
FIG. 4 is a side view of the drive drum of the present invention.
In the figure: 1. an equipment housing; 2. connecting a fulcrum; 3. a limit snap ring; 4. rotating the drive shaft; 5. driving the drum; 6. a moving chute; 7. a moving block; 8. a drive sleeve; 9. a drive connection shaft; 10. a lateral fulcrum; 11. a vortex fin; 12. a pneumatic pushing block; 13. a piezoelectric crystal; 14. an electromagnet; 15. a movable long slot; 16. a return spring; 17. a magnet block; 18. a dielectric plate; 19. electrorheological fluid; 20. a first positive electrode plate; 21. a first negative plate; 22. a second positive electrode plate; 23. a second negative plate; 24. a vent hole.
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.
Referring to fig. 1-4, an anti-falling brake device for a freight elevator comprises an equipment housing 1 and a vortex fin 11, wherein a connecting fulcrum shaft 2 is fixedly connected to the inner wall of the equipment housing 1, a limiting snap ring 3 is fixedly connected to the inner side of the connecting fulcrum shaft 2, a rotating drive shaft 4 is movably connected to the inner side of the limiting snap ring 3, an annular caulking groove is formed in the inner side of the limiting snap ring 3, a limiting block is movably connected to the inner side of the annular caulking groove, the inner side of the limiting block is fixedly connected to the outer side of the rotating drive shaft 4, the rotating drive shaft 4 is freely rotatable in the limiting snap ring 3 through the movable clamping connection of the limiting block and the annular caulking groove, but the rotating drive shaft 4 is limited from moving up and down, a driving rotary drum 5 is fixedly connected to the bottom of the rotating drive, the movable sliding chute 6 is of a continuous wave-shaped elongated slot structure, the movable sliding chute 6 is uniformly and continuously distributed on the outer side of the driving rotary drum 5, the driving rotary drum 5 is driven to do circular motion by the rotation of the movable block 7 in the movable sliding chute 6 in the up-and-down moving process of the driving sleeve 8, the bottom of the driving sleeve 8 is fixedly connected with a driving connecting shaft 9, the bottom of the equipment shell 1 is provided with an installation through hole corresponding to the driving connecting shaft 9, the bottom of the driving connecting shaft 9 penetrates through the installation through hole and is fixedly connected to the top of the lifting platform, the lifting platform is driven to synchronously move in the up-and-down moving process, the outer side of the rotating driving shaft 4 is fixedly connected with uniformly distributed lateral;
the inner wall of the equipment shell 1 is movably connected with a pneumatic pushing block 12, the inner wall of the equipment shell 1 is fixedly connected with a piezoelectric crystal 13, the equipment shell 1 is of a cylindrical structure, the pneumatic pushing block 12 is of a corresponding circular structure, the outer diameter size of the pneumatic pushing block 12 corresponds to the inner diameter size of the equipment shell 1, airflow is driven to rise through rotation of a vortex fin 11, so that the pneumatic pushing block 12 is pushed to move upwards along the equipment shell 1, the top of the pneumatic pushing block 12 is fixedly connected with a jacking bulge, the top of the jacking bulge is in movable contact with the bottom of the piezoelectric crystal 13, a hollow cavity is formed in the pneumatic pushing block 12, the pneumatic pushing block 12 moves upwards to a certain position, the jacking bulge is in contact with the piezoelectric crystal 13, the surface of the piezoelectric crystal 13 is subjected to external force to generate current, an electromagnet 14 is fixedly connected in the equipment shell 1, the inner wall of the movable long groove 15 is fixedly connected with a reset spring 16, the right side of the reset spring 16 is fixedly connected with a magnet block 17, the piezoelectric crystal 13 is electrically connected to an electromagnet 14, the magnetism of the electromagnet 14 and the magnetism of the corresponding surface of the magnet block 17 are the same, the electromagnet 14 is electrified and has magnetism, repulsive force is generated between the electromagnet 14 and the magnet block 17, the magnet block 17 is pushed rightwards along the movable long groove 15, a dielectric plate 18 is fixedly connected inside the magnet block 17, electrorheological fluid 19 is filled inside the movable long groove 15, a first positive plate 20 is fixedly connected inside the equipment shell 1, a first negative plate 21 corresponding to the first positive plate 20 is fixedly connected inside the equipment shell 1, a second positive plate 22 is fixedly connected inside the equipment shell 1, and a second negative plate 23 corresponding to the second positive plate 22 is.
The working principle is as follows: the bottom of the equipment shell 1 is provided with an installation through hole corresponding to the driving connecting shaft 9, the bottom of the driving connecting shaft 9 penetrates through the installation through hole and is fixedly connected to the top of the lifting platform, the lifting platform drives the driving connecting shaft 9 to move synchronously in the up-and-down moving process, the driving sleeve 8 rotates in the moving chute 6 through the moving block 7 to drive the driving rotary drum 5 to do circular motion in the up-and-down moving process, meanwhile, the driving shaft 4 is rotated to drive the eddy current fins 11 to rotate in the equipment shell 1, so that air in the equipment shell 1 is driven to flow, when the lifting platform slowly rises or falls at a constant speed, the rotating speed of the eddy current fins 11 is low, the generated gas has poor;
when the lifting platform suddenly descends or suddenly ascends due to a brake failure or other reasons, the rotating speed of the rotating driving shaft 4 is increased, the rotating speed of the vortex fin 11 is also high, the generated gas has high fluidity, the vortex fin 11 rotates to drive the airflow to ascend, so that the pneumatic pushing block 12 is pushed to move upwards along the equipment shell 1, the pneumatic pushing block 12 moves upwards to a certain position, the pushing bulge is contacted with the piezoelectric crystal 13, the surface of the piezoelectric crystal 13 is subjected to external force to generate current, the electromagnet 14 is electrified and has magnetism, repulsive force is generated between the electromagnet 14 and the magnet block 17, the magnet block 17 is pushed rightwards along the movable long groove 15, the first positive plate 20 and the first negative plate 21 are mutually connected, the second positive plate 22 and the second negative plate 23 are disconnected, and the second negative plate 23 is electrically connected to a general brake system of the lifting platform, the lifting platform is controlled to be shut down in time to prevent goods loss or personnel injury, the first negative plate 21 is electrically connected to the external electric field and is communicated with the external electric field, so that the electrorheological fluid 19 is changed from a liquid state to a solid state, the position of the dielectric plate 18 is fixed, the shut-down state is maintained, and the restarting operation is carried out until an operator checks the equipment fault.
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 a freight elevator is with preventing weighing down arresting gear, includes equipment casing (1) and vortex fin (11), its characterized in that: the device is characterized in that a connecting fulcrum shaft (2) is fixedly connected to the inner wall of a device shell (1), a limiting snap ring (3) is fixedly connected to the inner side of the connecting fulcrum shaft (2), a rotating driving shaft (4) is movably connected to the inside of the limiting snap ring (3), a driving rotary drum (5) is fixedly connected to the bottom of the rotating driving shaft (4), a moving chute (6) is formed in the outer side of the driving rotary drum (5), a moving block (7) is movably connected to the inside of the moving chute (6), a driving sleeve (8) is fixedly connected to the outer side of the moving block (7), a driving connecting shaft (9) is fixedly connected to the bottom of the driving sleeve (8), side fulcrum shafts (10) which are uniformly distributed are fixedly connected to the outer side of the rotating driving shaft (4), eddy fins (11) are fixedly connected to the outer side of, the device comprises a device shell (1), wherein a piezoelectric crystal (13) is fixedly connected to the inner wall of the device shell (1), an electromagnet (14) is fixedly connected to the inside of the device shell (1), a movable long groove (15) is formed in the inside of the device shell (1), a reset spring (16) is fixedly connected to the inner wall of the movable long groove (15), a magnet block (17) is fixedly connected to the right side of the reset spring (16), a dielectric plate (18) is fixedly connected to the inside of the magnet block (17), electrorheological fluid (19) is filled in the movable long groove (15), a first positive plate (20) is fixedly connected to the inside of the device shell (1), a first negative plate (21) corresponding to the first positive plate (20) is fixedly connected to the inside of the device shell (1), a second positive plate (22) is fixedly connected to the inside of the device shell (1), and.
2. The fall arrest braking device for a freight elevator according to claim 1, wherein: the limiting snap ring (3) is internally provided with an annular caulking groove, the inside of the annular caulking groove is movably connected with a limiting block, and the inner side of the limiting block is fixedly connected to the outer side of the rotating driving shaft (4).
3. The fall arrest braking device for a freight elevator according to claim 1, wherein: the movable sliding chutes (6) are of continuous wave-shaped long groove structures, and the movable sliding chutes (6) are uniformly and continuously distributed on the outer side of the driving rotary drum (5).
4. The fall arrest braking device for a freight elevator according to claim 1, wherein: the bottom of the equipment shell (1) is provided with an installation through hole corresponding to the driving connecting shaft (9), and the bottom of the driving connecting shaft (9) penetrates through the installation through hole to be fixedly connected to the top of the lifting platform.
5. The fall arrest braking device for a freight elevator according to claim 1, wherein: the equipment shell (1) is of a cylindrical structure, the pneumatic pushing block (12) is of a corresponding circular structure, and the outer diameter of the pneumatic pushing block (12) corresponds to the inner diameter of the equipment shell (1).
6. The fall arrest braking device for a freight elevator according to claim 1, wherein: the top of the pneumatic pushing block (12) is fixedly connected with a jacking bulge, the top of the jacking bulge is movably contacted with the bottom (13) of the piezoelectric crystal, and a hollow cavity is formed in the pneumatic pushing block (12).
7. The fall arrest braking device for a freight elevator according to claim 1, wherein: the piezoelectric crystal (13) is electrically connected to the electromagnet (14), and the corresponding surfaces of the electromagnet (14) and the magnet block (17) have the same magnetism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011323604.1A CN112478972A (en) | 2020-11-23 | 2020-11-23 | Anti-falling braking device for freight elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011323604.1A CN112478972A (en) | 2020-11-23 | 2020-11-23 | Anti-falling braking device for freight elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112478972A true CN112478972A (en) | 2021-03-12 |
Family
ID=74933099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011323604.1A Withdrawn CN112478972A (en) | 2020-11-23 | 2020-11-23 | Anti-falling braking device for freight elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112478972A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113117876A (en) * | 2021-04-18 | 2021-07-16 | 泗县黑犀鸟商贸有限公司 | Paper shredder protection device for shredding confidential documents |
-
2020
- 2020-11-23 CN CN202011323604.1A patent/CN112478972A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113117876A (en) * | 2021-04-18 | 2021-07-16 | 泗县黑犀鸟商贸有限公司 | Paper shredder protection device for shredding confidential documents |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101549818B (en) | Elevator brake | |
| CN104724565B (en) | Elevator stopping device with trigger mechanism | |
| CN105398908B (en) | A kind of auxiliary operation device of elevator safety gear | |
| CN112478972A (en) | Anti-falling braking device for freight elevator | |
| CN112623742A (en) | Stacking equipment with cleaning function | |
| CN109353909B (en) | Screw type movable stopping device of elevator | |
| CN109179143B (en) | Emergency manual slow descending device and lifting equipment thereof | |
| CN110759205B (en) | Dual-drive control elevator | |
| CN114772413B (en) | Stall protection device in vertical material conveying system | |
| CN104385866A (en) | Hook mechanism for submerged AGV (Automatic Guided Vehicle) | |
| CN111675155A (en) | Jacking device and AGV dolly | |
| CN114120678B (en) | Stable intelligent traffic equipment | |
| CN205419395U (en) | Elevator anti -falling device | |
| CN109179132B (en) | Vertical lifting elevator and escape compartment conversion device and using method thereof | |
| CN109516341A (en) | A kind of spare slowing-down structure of elevator | |
| CN112441531A (en) | Hydraulic equipment that factor of safety is high | |
| CN112727536A (en) | Stall stopping device of transportation equipment | |
| CN114590729A (en) | Load detection device and elevator | |
| CN208471307U (en) | Elevator falling-proof safety device | |
| CN108116959B (en) | Speed governor and elevator device | |
| CN207774530U (en) | A kind of explosion-proof limiter of speed | |
| CN202657786U (en) | Progressive type safety tongs suitable for circular guide rail | |
| CN216737045U (en) | Anti-falling safety device of construction elevator | |
| CN204297869U (en) | A kind of elevator rope pulley that can increase the service life | |
| CN210854073U (en) | Locking device and Z-axis transmission device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210312 |