CN102966684A - Rotation braking device of tower crane - Google Patents
Rotation braking device of tower crane Download PDFInfo
- Publication number
- CN102966684A CN102966684A CN 201210443176 CN201210443176A CN102966684A CN 102966684 A CN102966684 A CN 102966684A CN 201210443176 CN201210443176 CN 201210443176 CN 201210443176 A CN201210443176 A CN 201210443176A CN 102966684 A CN102966684 A CN 102966684A
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- CN
- China
- Prior art keywords
- armature
- brake
- output shaft
- brake seat
- brake drum
- 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.)
- Pending
Links
- 239000003638 reducing agent Substances 0.000 claims abstract description 18
- 230000001808 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention relates to a rotation braking device of a tower crane. A brake seat is fixedly installed on a case body around an output shaft of a rotation speed reducer, an inner taper is extendeds out of the middle part of the brake seat, and an electromagnetic coil is inlaid in the brake seat; a positioning guide spline is installed on the output shaft of the rotation speed reducer through a key, a brake drum is installed on the outer circle of the positioning guide spline in a spline fit mode, and the outer circle of the brake drum has the same taper as the middle part of the brake seat; an armature is fixedly arranged on the plane of the upper end of the brake drum by using a screw, and a spring piece is arranged on the output shaft of the rotation speed reducer, which is positioned on the upper part of the armature; and the armature is hung in a long hole of the spring piece through a hang spring. The rotation braking device has the advantages of simple structure, small axial size, larger braking force and long service life.
Description
Technical field
The present invention relates to tower crane, be specifically related to the tower crane rotation braking device, belong to the tower crane technical field.
Background technique
At present, the moving device of tower crane generally wraps coupling, lower support frame, electromagnet, coupling shaft, forms every dish, bearing, upper bracket, platen, friction plate, spring, pull bar, armature and rotary reducer, wherein, support is installed around the output shaft of rotary reducer, the break that is comprised of above-mentioned parts is installed in the top of support, electromagnet operates braking device by three pull bars, and the major defect of its existence is: the axial size of braking device is bigger than normal; Bearing is subjected in the work impact of high temperature larger, the easy desaturation of lubricant oil in the bearing,, loss, bearing life-span reduce, and cause whole equipment to work, simultaneously, because three Compress Springs are not easy the length and the elasticity that keep identical, cause friction plate to tilt, reduce the effect of braking, caused easily security incident; In addition, comparatively the complex fault rate is higher owing to mechanism.
Summary of the invention
The object of the invention is to: for the existing defects of existing tower crane rotation braking device, the invention provides a kind of novel tower crane rotation braking device, overcome the existing existing defects of tower crane rotation braking device.
The present invention realizes that the technological scheme that above-mentioned purpose adopts is: described a kind of tower crane rotation braking device, by rotary reducer, brake seat, electromagnetic coil, armature, spring sheet, hang spring, key, the positioning and guiding spline, brake drum forms, it is characterized in that: brake seat is fixed on the casing on every side of rotary reducer output shaft, described brake seat by magnetic property preferably material make, the centre of described brake seat goes out female cone, and the cone point downwards, be inlaid with electromagnetic coil in brake seat inside, on the output shaft of rotary reducer, by key the positioning and guiding spline is installed, mode with spline fitted on the cylindrical of positioning and guiding spline is equipped with brake drum, described brake drum cylindrical has and the middle identical tapering of brake seat, described brake drum has the degrees of freedom that relative positioning guiding spline axial direction slides, and without the degrees of freedom of mutually rotating, upper Transverse plane at brake drum is screwed armature, output shaft at the rotary reducer of armature upper position is provided with spring sheet, and armature is suspended in the strip hole of spring sheet by hang spring.
Beneficial effect: the present invention is when work, after the electromagnetic coil energising, just armature is produced attraction force, the inside and outside wimble fraction of brake drum and brake seat is forced together, so, play braking action, so, can be found out by working principle of the present invention and structure principle chart: the present invention have simple in structure, axial dimension is less, braking force is large, higher advantage of life-span.
Description of drawings
Accompanying drawing 1 is structure principle chart of the present invention;
Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to sectional view;
Accompanying drawing 3 is outline drawings of spring sheet;
Accompanying drawing 4 is B-B revolved sections of accompanying drawing 3;
Shown in the figure: 1, rotary reducer; 2, brake seat; 3, electromagnetic coil; 4, armature; 5, spring sheet; 6, hang spring; 7, key; 8, positioning and guiding spline; 9, brake drum.
Embodiment
The tower crane rotation braking device, comprise rotary reducer 1, brake seat 2, electromagnetic coil 3, armature 4, spring sheet 5, hang spring 6, key 7, positioning and guiding spline 8, brake drum 9, brake seat 2 is fixed on the casing on every side of rotary reducer 1 output shaft, brake seat 2 by magnetic property preferably material make, centre at brake seat 2 goes out female cone, and the cone point downwards, be inlaid with electromagnetic coil 3 in brake seat 2 inside, output shaft at rotary reducer 1 is installed positioning and guiding spline 8 by key 7, mode with spline fitted on the cylindrical of positioning and guiding spline 8 is equipped with brake drum 9, brake drum 9 cylindricals have and brake seat 2 middle identical taperings, brake drum 9 has the degrees of freedom that relative positioning guiding spline 8 axial directions slide, and without the degrees of freedom of mutually rotating, upper Transverse plane at brake drum 9 is screwed armature 4, output shaft at the rotary reducer 1 of armature 4 upper positions is provided with spring sheet 5, and armature 4 is suspended in the strip hole of spring sheet 5 by hang spring 6.
Claims (1)
1. tower crane rotation braking device, comprise rotary reducer (1), brake seat (2), electromagnetic coil (3), armature (4), spring sheet (5), hang spring (6), key (7), positioning and guiding spline (8), brake drum (9), it is characterized in that: brake seat (2) is fixed on the casing on every side of rotary reducer (1) output shaft, the centre of brake seat (2) goes out female cone, and the cone point downwards, be inlaid with electromagnetic coil (3) in brake seat (2) inside, output shaft at rotary reducer (1) is installed positioning and guiding spline (8) by key (7), mode with spline fitted on the cylindrical of positioning and guiding spline (8) is equipped with brake drum (9), brake drum (9) cylindrical has and the middle identical tapering of brake seat (2), the upper Transverse plane of brake drum (9) is screwed armature (4), output shaft at the rotary reducer (1) of armature (4) upper position is provided with spring sheet (5), and armature (4) is suspended in the strip hole of spring sheet (5) by hang spring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210443176 CN102966684A (en) | 2012-11-08 | 2012-11-08 | Rotation braking device of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210443176 CN102966684A (en) | 2012-11-08 | 2012-11-08 | Rotation braking device of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102966684A true CN102966684A (en) | 2013-03-13 |
Family
ID=47797035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210443176 Pending CN102966684A (en) | 2012-11-08 | 2012-11-08 | Rotation braking device of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102966684A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343787A (en) * | 2013-07-09 | 2013-10-09 | 中国工程物理研究院总体工程研究所 | Rotating shaft locking device |
| CN103489714A (en) * | 2013-09-25 | 2014-01-01 | 中国科学院深圳先进技术研究院 | Locking device |
| CN109915507A (en) * | 2016-10-22 | 2019-06-21 | 郑州搜趣信息技术有限公司 | Using the truck disk brake of brake material |
| CN113685466A (en) * | 2021-09-18 | 2021-11-23 | 奥创动力传动(深圳)有限公司 | Brake |
-
2012
- 2012-11-08 CN CN 201210443176 patent/CN102966684A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343787A (en) * | 2013-07-09 | 2013-10-09 | 中国工程物理研究院总体工程研究所 | Rotating shaft locking device |
| CN103343787B (en) * | 2013-07-09 | 2015-10-07 | 中国工程物理研究院总体工程研究所 | Running shaft locking device |
| CN103489714A (en) * | 2013-09-25 | 2014-01-01 | 中国科学院深圳先进技术研究院 | Locking device |
| CN109915507A (en) * | 2016-10-22 | 2019-06-21 | 郑州搜趣信息技术有限公司 | Using the truck disk brake of brake material |
| CN109915507B (en) * | 2016-10-22 | 2020-10-23 | 山东正阳科技有限公司 | Lorry disc brake adopting braking material |
| CN113685466A (en) * | 2021-09-18 | 2021-11-23 | 奥创动力传动(深圳)有限公司 | Brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130313 |