CN201049870Y - Braking drum safety device - Google Patents
Braking drum safety device Download PDFInfo
- Publication number
- CN201049870Y CN201049870Y CNU2007200964214U CN200720096421U CN201049870Y CN 201049870 Y CN201049870 Y CN 201049870Y CN U2007200964214 U CNU2007200964214 U CN U2007200964214U CN 200720096421 U CN200720096421 U CN 200720096421U CN 201049870 Y CN201049870 Y CN 201049870Y
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- braking
- utility
- reel
- model
- winding seat
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Abstract
The utility model relates to a safety device for the braking drum of the electric hoist and the hoister, which is mainly characterized in that the other side of the drum is fixedly provided with a braking reducer; a secondary actuator is fixedly arranged on the braking reducer in the same axis; a transmission shaft of the braking reducer inside the secondary actuator is fixedly provided with a tetragonal associator; a friction disk is nested on the radial direction of the tetragonal associator in the same axis; a braking disk and a winding seat , which share the same axis with the friction disk, are arranged inside the secondary actuator; the winding seat is fixedly connected with a shell of the secondary actuator, and an electromagnetic coil and a spring are arranged on the radial direction of the winding seat; and the braking disk is arranged between the friction disk and the winding seat. With simple structure and scientific and reasonable design, the utility model can effectively brake secondarily after the shaft of the motor is broken or other accidents happen, and the utility model brakes fast and reliably, and thus the utility model improves the safety in hoisting and conveying and assures the life and property safety of the people. Therefore, the utility model is applicable in sites such as the mine, the metallurgical industry and the hoisting site where hoisting torsion is larger.
Description
Technical field
The utility model relates to the lifting transport field, the braking drum safety device of especially a kind of electric block and winch.
Background technology
The reel of electric block and winch adopts the mode of braking motor axle to brake usually in the weight-lifting equipment, and the braking of motor shaft is divided into external braking and built-in braking.The external braking is on the motor shaft between motor and the reductor plate disc brake to be installed, and this motor is generally selected asynchronous motor for use; Built-in braking is to brake by brake disc in motor, and this motor is generally selected Cone-shaped electric machine for use.Because it is weight-lifting equipment is extraordinary product, must guarantee enough safetys, therefore higher to the requirements for quality of products such as reel, steel rope, motor, motor shaft.But the braking of prior motor axle exists unsurmountable hidden danger all the time, and promptly because the suffered load of motor shaft is bigger, in case the off-axis phenomenon takes place, braking will not have any effect, and the grave accident of " slide car " just appears in reel.Therefore, avoid and prevent that the motor shaft off-axis from being a significant problem, is related to the safety problem of enterprise's life, property.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, the braking drum safety device that a kind of simple in structure, design science is provided, can effectively guarantees to carry out secondary braking behind the motor shaft off-axis, ensure the security of the lives and property.
The utility model solves its technical matters and is achieved through the following technical solutions:
A kind of braking drum safety device, by motor, reductor, reel constitutes, motor is by the motor shaft drive speed reducer, the output shaft of this reductor connects a side of reel and drives the reel rotation, it is characterized in that: the opposite side at reel installs a braking deceleration machine, the coaxial secondary brake that installs on this braking deceleration machine, install a cubic zygote on the transmission shaft of the braking deceleration machine in this secondary brake, this four directions zygote directly upwards coaxial package one friction disc is arranged, with coaxial brake disc and the winding seat of in secondary brake, also being separately installed with of this friction disc, the shell of this winding seat and secondary brake installs and at its uniform magnet coil and spring of being equipped with that directly make progress, brake disc is installed between friction disc and the winding seat.
And the uniform magnetic sheet that is fixed with on the outer rim end face of friction disc is fixed with a magnetic tachogen on the shell to secondary brake that should the magnetic sheet position.
And, install a rotary encoder at reel transmission axle head.
Advantage of the present utility model and beneficial effect are:
1. this braking drum safety device installs a secondary brake at the reel opposite side, and this drg is at the motor shaft off-axis or occur can carrying out secondary braking in other losses of power accident, with the safety of effective raising weight-lifting equipment.
2. this braking drum safety device is equipped with magnetic tachogen or rotary encoder, can trace and monitor the rotating speed of drum shaft; When rotating speed occurs when unusual, the generation of " slide car " accident is directly braked and ensured safety, avoided to secondary brake.
3. the utility model integral structure is simple, and design science is reasonable, can effectively guarantee to carry out secondary braking behind motor shaft off-axis or other burst accidents, and the braking fast and reliable has improved the safety that lifting is transported, and has ensured the people life property safety; This braking drum safety device is suitable in the mine, metallurgy, lifting etc. start shipment the bigger occasion of lifting torsion and use.
Description of drawings
Fig. 1 is the profile scheme drawing of the utility model overall structure;
Fig. 2 is the structure cutaway view of the utility model secondary brake;
Fig. 3 is the structure cutaway view of the another kind of version of the utility model.
The specific embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
Present embodiment is as example, as shown in Figure 1 with electric block.Electric block is made of motor 1, reductor 2, reel 3, and motor is by the motor shaft drive speed reducer, and the output shaft of this reductor connects a side of reel and drives the reel rotation.This braking drum safety device is packed in the opposite side of reel, concrete type of attachment is: the opposite side at reel installs a braking deceleration machine 4, on this braking deceleration machine by the scalable binding bolt 6 coaxial secondary brakes 5 that install, the structure of this secondary brake is: install a cubic zygote 8 on the transmission shaft 13 of the braking deceleration machine in this secondary brake, this four directions zygote is square and is solidly installed by key and transmission shaft.This four directions zygote directly upwards coaxial package one friction disc 7 is arranged, this friction disc can be at the axial enterprising line displacement of cubic zygote; With coaxial winding seat 12 and the brake disc 9 of also being separately installed with in secondary brake of this friction disc, the shell of winding seat and secondary brake installs and at its uniform magnet coil 10 and spring 11 of being equipped with that directly make progress, brake disc is installed between brake disc and the brake disc.
In order to monitor and measure the rotating speed of friction disc, the uniform magnetic sheet 14 (referring to Fig. 2) that is fixed with on the outer rim end face of brake disc is fixed with a magnetic tachogen 15 on the shell to secondary brake that should the magnetic sheet position.
Another kind of version of the present utility model is: install a rotary encoder 16 (as Fig. 3) at reel transmission axle head, the function of this rotary encoder is identical with the magnetic tachogen.
The utility model also is suitable for the reel on the winch, and its installation and bonded assembly version are identical with electric block.
Principle of work of the present utility model is:
When the electric block normal operation, the magnet coil of winding seat is subjected to the electric attraction brake disc that brake disc is withdrawn, and friction lining rotates freely under the drive of cubic zygote, and magnetic tachogen or rotary encoder detect the rotating speed that monitors transmission shaft; When dead electricity, the spring of winding seat promotes the brake disc reach and axially is being pressed on the friction lining, this moment, braking deceleration machine end face can be considered Brake Block, and friction lining makes transmission shaft stop operating (braking jointly with motor braking) under the axle pressure of Brake Block and brake disc.If the off-axis phenomenon appears in motor, then the rotating speed of friction lining improves very big, magnetic tachogen or rotary encoder pass to the control system outage with signal, thereby " the slide car " of control reel, guarantee safety, this braking drum safety device is suitable in the mine, metallurgy, lifting etc. start shipment the bigger occasion of lifting torsion and use.
Claims (3)
1. braking drum safety device, by motor, reductor, reel constitutes, motor is by the motor shaft drive speed reducer, the output shaft of this reductor connects a side of reel and drives the reel rotation, it is characterized in that: the opposite side at reel installs a braking deceleration machine, the coaxial secondary brake that installs on this braking deceleration machine, install a cubic zygote on the transmission shaft of the braking deceleration machine in this secondary brake, this four directions zygote directly upwards coaxial package one friction disc is arranged, with coaxial brake disc and the winding seat of in secondary brake, also being separately installed with of this friction disc, the shell of this winding seat and secondary brake installs and at its uniform magnet coil and spring of being equipped with that directly make progress, brake disc is installed between friction disc and the winding seat.
2. braking drum safety device according to claim 1 is characterized in that: the uniform magnetic sheet that is fixed with on the outer rim end face of friction disc is fixed with a magnetic tachogen on the shell to secondary brake that should the magnetic sheet position.
3. braking drum safety device according to claim 1 is characterized in that: install a rotary encoder at reel transmission axle head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200964214U CN201049870Y (en) | 2007-06-18 | 2007-06-18 | Braking drum safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200964214U CN201049870Y (en) | 2007-06-18 | 2007-06-18 | Braking drum safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201049870Y true CN201049870Y (en) | 2008-04-23 |
Family
ID=39336352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200964214U Expired - Lifetime CN201049870Y (en) | 2007-06-18 | 2007-06-18 | Braking drum safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201049870Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327898B (en) * | 2007-06-18 | 2011-04-20 | 毕鉴华 | Braking drum safety device |
| CN103661971A (en) * | 2013-12-20 | 2014-03-26 | 河北汉光重工有限责任公司 | Power failure self-locking device locking automatically in any position |
| CN109149870A (en) * | 2018-08-27 | 2019-01-04 | 珠海格力电器股份有限公司 | A kind of servo motor brake and servo motor |
| CN114162740A (en) * | 2021-11-29 | 2022-03-11 | 宁波意宁码头经营有限公司 | Lifting appliance reel of bridge crane |
-
2007
- 2007-06-18 CN CNU2007200964214U patent/CN201049870Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327898B (en) * | 2007-06-18 | 2011-04-20 | 毕鉴华 | Braking drum safety device |
| CN103661971A (en) * | 2013-12-20 | 2014-03-26 | 河北汉光重工有限责任公司 | Power failure self-locking device locking automatically in any position |
| CN109149870A (en) * | 2018-08-27 | 2019-01-04 | 珠海格力电器股份有限公司 | A kind of servo motor brake and servo motor |
| CN114162740A (en) * | 2021-11-29 | 2022-03-11 | 宁波意宁码头经营有限公司 | Lifting appliance reel of bridge crane |
| CN114162740B (en) * | 2021-11-29 | 2023-11-14 | 宁波意宁码头经营有限公司 | Bridge crane hoist reel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tianjin Alex Hua Tian stage technology Engineering Co., Ltd. Assignor: Bi Jianhua Contract record no.: 2010120000167 Denomination of utility model: Braking drum safety device Granted publication date: 20080423 License type: Exclusive License Record date: 20101203 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080423 Effective date of abandoning: 20070618 |