CN101327898B - Braking drum safety device - Google Patents
Braking drum safety device Download PDFInfo
- Publication number
- CN101327898B CN101327898B CN2007100576533A CN200710057653A CN101327898B CN 101327898 B CN101327898 B CN 101327898B CN 2007100576533 A CN2007100576533 A CN 2007100576533A CN 200710057653 A CN200710057653 A CN 200710057653A CN 101327898 B CN101327898 B CN 101327898B
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- Prior art keywords
- brake
- reel
- braking
- winding seat
- secondary brake
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- 238000004804 winding Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000005272 metallurgy Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The present invention relates to a reel-stopping safety device for an electric block and a windlass. The main technical points are as follows: a brake reductor is fixed to the other side of the reel; a secondary brake is coaxially arranged on the brake reductor; a four-way connector is fixed to a transmission shaft of the brake reductor in the secondary brake; a friction sheave is coaxially sleeved in the radial direction of the four-way connector; a brake disc and a winding seat are respectively arranged inside the secondary brake and are coaxial with the friction sheave; the winding seat is fixed to the secondary brake, and magnet coils and a spring are uniformly arranged in the radial direction of the winding seat; the brake disc is arranged between the friction sheave and the winding seat. The safety device is simple in overall structure, and rational and scientific in design. The device can effectively ensure a secondary braking after shaft rupture of the motor shaft or other sudden accidents. The braking is quick and reliable. The safety of hoisting transportation is improved. The security of life and property of people is ensured. The device is suitable for being used in occasions where the transportation and hoisting torsion is large, such as mine, metallurgy and hoisting, etc.
Description
Technical field
The present invention 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.
Summary of the invention
The objective of the invention 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 behind the motor shaft off-axis, to carry out secondary braking, ensure the security of the lives and property.
The present invention 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 invention 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. integral structure of the present invention 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 overall structure of the present invention;
Fig. 2 is the structure cutaway view of secondary brake of the present invention;
Fig. 3 is the structure cutaway view of the another kind of version of the present invention.
The specific embodiment
The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention 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 invention 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 present invention 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 invention 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 (2)
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, 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.
2. 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 |
|---|---|---|---|
| CN2007100576533A CN101327898B (en) | 2007-06-18 | 2007-06-18 | Braking drum safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100576533A CN101327898B (en) | 2007-06-18 | 2007-06-18 | Braking drum safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101327898A CN101327898A (en) | 2008-12-24 |
| CN101327898B true CN101327898B (en) | 2011-04-20 |
Family
ID=40203951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100576533A Expired - Fee Related CN101327898B (en) | 2007-06-18 | 2007-06-18 | Braking drum safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101327898B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969135A (en) * | 2014-04-14 | 2014-08-06 | 武汉科技大学 | Pendulum bob impact experiment platform for mechanical property testing of metal material surface |
| CN105584945A (en) * | 2016-03-10 | 2016-05-18 | 南京神天起重机械设备有限公司 | Electric block conveniently achieving safety braking at tail end |
| CN106787423A (en) * | 2016-12-29 | 2017-05-31 | 上海舜拓电机有限公司 | Line handspike electromagnetic self-locking device |
| CN113864362A (en) * | 2021-09-09 | 2021-12-31 | 宁波银象汽车配件制造有限公司 | Pressure-resistant high-torque brake housing for hydraulic motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3116075A1 (en) * | 1981-04-22 | 1982-11-11 | Pierre Gagnon | Braking device |
| CN1050362A (en) * | 1989-08-18 | 1991-04-03 | 株式会社日立制作所 | The electric disk brake of elevator lifting device |
| EP0875448A2 (en) * | 1997-04-30 | 1998-11-04 | Angelo Gambini | Braking device, particularly for braking the descent of a life-boat |
| EP0953786A2 (en) * | 1998-04-29 | 1999-11-03 | Stromag Aktiengesellschaft | Electromagnetic spring brake |
| CN201049870Y (en) * | 2007-06-18 | 2008-04-23 | 毕鉴华 | Braking drum safety device |
-
2007
- 2007-06-18 CN CN2007100576533A patent/CN101327898B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3116075A1 (en) * | 1981-04-22 | 1982-11-11 | Pierre Gagnon | Braking device |
| CN1050362A (en) * | 1989-08-18 | 1991-04-03 | 株式会社日立制作所 | The electric disk brake of elevator lifting device |
| EP0875448A2 (en) * | 1997-04-30 | 1998-11-04 | Angelo Gambini | Braking device, particularly for braking the descent of a life-boat |
| EP0953786A2 (en) * | 1998-04-29 | 1999-11-03 | Stromag Aktiengesellschaft | Electromagnetic spring brake |
| CN201049870Y (en) * | 2007-06-18 | 2008-04-23 | 毕鉴华 | Braking drum safety device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101327898A (en) | 2008-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Shuanfang Inventor before: Bi Jianhua |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170914 Address after: 456550 No. 11 righteousness alley, Chengguan Town, Henan, Linzhou Patentee after: Xu Shuanfang Address before: 300010 Wan Chun garden, Hedong District, Tianjin, 9-1-102 Patentee before: Bi Jianhua |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20180618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |