CN214298780U - Separated manual brake opening device for tractor brake - Google Patents
Separated manual brake opening device for tractor brake Download PDFInfo
- Publication number
- CN214298780U CN214298780U CN202120123521.1U CN202120123521U CN214298780U CN 214298780 U CN214298780 U CN 214298780U CN 202120123521 U CN202120123521 U CN 202120123521U CN 214298780 U CN214298780 U CN 214298780U
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- brake
- hole
- release lever
- shell
- elevator
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Abstract
The utility model discloses a separate manual switching-off device for a tractor brake, the brake comprises a shell and two armatures arranged in the shell, the manual switching-off device comprises a release lever and a cam shaft, one end of the cam shaft is sleeved on the release lever and fixed by a retainer ring, and the end part of the release lever is provided with a handle sleeve; the brake shell is provided with a through hole, the position of the through hole corresponds to the gap between the two armatures, the size of the through hole is matched with the camshaft, and the through hole is provided with a plug. The plug is fixed on the shell through threads or bolts. The utility model discloses the structure adopts manual switching-off device and elevator stopper disconnect-type structure, compares current structure and has the flexible operation simple, and installation, maintenance convenience's advantage are showing and have been improved assembly efficiency, and performance is stable, is favorable to reduce cost.
Description
Technical Field
The utility model relates to an elevator emergency device technical field, concretely relates to manual switching-off device of disconnect-type for hauler stopper is applicable to when having the operation of computer lab elevator trouble, rescues personnel's in the car elevator safety device.
Background
The safe operation of the elevator is always a key concern, and the manual brake opening device is used as an important safety component of the brake of the elevator traction machine, the design of performance parameters and stability of the manual brake opening device directly influences the safety performance of the brake, and the assembly, process, production efficiency and cost of the brake are indirectly determined.
With the continuous development of permanent magnet synchronous motors, as a brake of an elevator safety component, when an elevator is powered off accidentally, in order to ensure personal safety, a maintenance worker firstly needs to go to a power control room or an elevator machine room to disconnect a power supply, hold a tractor barring hand wheel with a hand, open the brake of the elevator with a tractor brake-off wrench, observe the position of the elevator, manually steer the hand wheel to stop the elevator at a nearby landing, rescue people trapped in an elevator car, release the elevator manual brake-off wrench to reset the elevator brake, and complete rescue operation. In these links, the manual brake-opening mechanism of the brake plays a crucial role, because the brake-opening wrench is only used when the elevator is powered off, and the function of the brake-opening wrench is to open the brake, so that the elevator can run with the help of the turning hand wheel, and if the elevator is improperly operated, the elevator falls, and other serious problems related to human life, the manual brake-opening mechanism of the drum brake is very important.
The existing opening device generally comprises a cam shaft and a release lever, and the cam shaft is connected and matched with a brake through a bearing and the like. When the release lever is used, the release lever is pulled up, the cam shaft rotates for a certain angle to achieve the purpose of opening the brake, and when the release lever is not used, the release lever is retracted, and the cam shaft is located at the armature gap. In the structure, if the camshaft of the elevator brake is not positioned and locked according to the operation requirement, when the electromagnetic armature reciprocates, the release lever can be caused to repeatedly hit the ends of the two armatures, the friction force between the armatures and the camshaft is overlarge at a specific position, so that the armature is clamped by the camshaft, the brake cannot be locked, and serious accidents can be caused. In addition, camshaft direct mount is at the stopper casing, and the structure is complicated, and the processing degree of difficulty is big, and the increase cost probably produces the safety problem that camshaft and armature blocked, simultaneously, parts such as each cooperation part like screw, spring, steel ball probably drop and get into the stopper, cause the potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tractor is manual brake-opening device of disconnect-type for stopper to the camshaft that solves current stopper existence blocks with armature and leads to unable the resetting or forgets after the manual brake-opening pole operation and takes out from the stopper, thereby causes safety problems such as elevator swift current car.
The utility model discloses a realize through following technical scheme: tractor brake is with manual switching-off device of disconnect-type, the stopper includes the casing, sets up two armatures in the casing inside, its characterized in that: the release lever is sleeved with one end of the cam shaft and fixed through a retainer ring, and a handle sleeve is arranged at the end part of the release lever; the brake shell is provided with a through hole, the position of the through hole corresponds to the gap between the two armatures, the size of the through hole is matched with the camshaft, and the through hole is provided with a plug.
Further: the plug is fixed on the shell through threads or bolts.
The utility model has the advantages that: the utility model discloses structure flexible operation is simple, and installation, maintenance convenience are showing and are improving assembly efficiency, and performance is stable, is favorable to reduce cost.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure and the electromagnetic brake of the present invention;
FIG. 3 is a schematic front view of the electromagnetic brake;
fig. 4 is a schematic view of the usage status of the structure of the present invention.
The sequence numbers in the figures illustrate: 1-a handle sleeve; 2-a release lever; 3-a camshaft; 4-a retainer ring; 5-an electromagnetic brake; 6-an armature; 7-plugging; 8-screw.
Detailed Description
As shown in fig. 1 and 2, the present invention provides a separated manual brake opening device for a traction machine brake, the brake includes a housing, two armatures 6 disposed inside the housing, the manual brake opening device includes a release lever 2 and a camshaft 3, a sleeve of the camshaft is disposed on the release lever and fixed by a retainer ring 4, and the other end of the camshaft is matched with an electromagnetic brake 5; a handle sleeve 1 is arranged at the end part of the release lever; a through hole is arranged on the brake shell, the position of the through hole corresponds to the gap between the two armatures 5, the size of the through hole is matched with the camshaft 3, and a plug 7 is arranged on the through hole.
Preferably: the plug is fixed to the housing by means of screws 8.
The utility model discloses the structure is when not using, places the manual switching-off device of disconnect-type on elevator machine room's wall, and stopper inner structure is simple, and the factor that probably produces the interference in the operation process is few, and the operational safety is high. When needing to use under emergency, take off it, open the shutoff on the electromagnetic braking ware casing, insert the camshaft, insert the back, pull the release lever and drive the rotatory certain angle of camshaft, reach the effect that the unblock was opened floodgate, can carry out operations such as manual barring this moment.
The utility model discloses in the structure, adopt disconnect-type structural design with manual switching-off device and electromagnetic braking ware, when not using the camshaft, do not assemble on the stopper, when needing to use, the reconnection is used. Therefore, the manual brake opening device can avoid the problems that the armature is clamped by the cam shaft when the elevator runs and the cam shaft does not reset and the like in elevator safety accidents. Compare among the existing structure, parts such as camshaft direct mount need assembly screw when on the stopper casing, the spring, the steel ball to still will process screw hole and groove etc. in the stopper casing, this structure reduces the step of these parts and casing processing, thereby reduce the cost, improved manufacturing efficiency and assemble duration, still have performance stability, easy operation's advantage simultaneously.
Claims (2)
1. Tractor brake is with manual switching-off device of disconnect-type, the stopper includes the casing, sets up two armatures in the casing inside, its characterized in that: the release lever is sleeved with one end of the cam shaft and fixed through a retainer ring, and a handle sleeve is arranged at the end part of the release lever; the brake shell is provided with a through hole, the position of the through hole corresponds to the gap between the two armatures, the size of the through hole is matched with the camshaft, and the through hole is provided with a plug.
2. The split type manual brake opening device for a traction machine brake according to claim 1, characterized in that: the plug is fixed on the shell through threads or bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120123521.1U CN214298780U (en) | 2021-01-18 | 2021-01-18 | Separated manual brake opening device for tractor brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120123521.1U CN214298780U (en) | 2021-01-18 | 2021-01-18 | Separated manual brake opening device for tractor brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214298780U true CN214298780U (en) | 2021-09-28 |
Family
ID=77825397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120123521.1U Active CN214298780U (en) | 2021-01-18 | 2021-01-18 | Separated manual brake opening device for tractor brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214298780U (en) |
-
2021
- 2021-01-18 CN CN202120123521.1U patent/CN214298780U/en active Active
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