CN103277438B - A kind of thread brake - Google Patents
A kind of thread brake Download PDFInfo
- Publication number
- CN103277438B CN103277438B CN201310205803.6A CN201310205803A CN103277438B CN 103277438 B CN103277438 B CN 103277438B CN 201310205803 A CN201310205803 A CN 201310205803A CN 103277438 B CN103277438 B CN 103277438B
- Authority
- CN
- China
- Prior art keywords
- speed
- brake
- tooth axle
- screw rod
- screw pair
- 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.)
- Expired - Fee Related
Links
- 238000005461 lubrication Methods 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000005381 potential energy Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of thread brake, comprise the tooth axle be connected with work mechanism boss rod, screw pair self-locking mechanism, be positioned at the band brake speed-adjustable motor of screw pair self-locking mechanism side and the lubrication box for installing described tooth axle and screw pair self-locking mechanism, this invention utilizes the self-lock mechanism of screw pair, the rotating speed of the toothed-belt brake disc nut carrying machine work torque is controlled by the rotating speed of band brake speed-adjustable motor control screw rod, to realize coordinating electrical equipment speed governing to the main frame of work mechanism, execution speed limit and standard stop braking function, work mechanism reliability of operation can be improved, mainly be applicable to crane lifting hoisting mechanism, also other field of movable machinery is applicable to.
Description
Technical field
The present invention relates to a kind of mechanical speed limit, speed governing, braking device, particularly a kind of thread brake.
Background technique
In the traditional field of movable machinery, work mechanism speed limit, speed governing and stopping brake are normally made up of two separate systems, wherein, be performed by the independent electrical system controlling working host rotating speed and torque to the speed limit speed governing of working host, stopping brake is independently performed by break.
In conventional brake, carry out speed limit, speed governing and parking brake application by control brake frictional force to work mechanism, regulating effect is very limited.Thus, in Automated condtrol, conventional brake seldom participates in speed limit and the speed-regulating function of machinery, only at less demanding its friction speed-regulating of minority occasion dual-purpose and braking function.When in speed control system, break, any one breaks down, or during above-mentioned two autonomous system poor fits, often cause the generation of work mechanism stall serious accident out of control.
Conventional brake is various in style, or the bodily form is larger, or mechanism is complicated, or it is expensive, or Security is not enough, or suitability is poor, or vulnerability is fairly obvious, thus need regularly to carry out to check, align, change and maintenance, cause work mechanism to occur situation that stall out of control produces serious accident occurs repeatedly because of negligence of management.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of thread brake, coordinate electrical equipment speed governing to reach the main frame had concurrently work mechanism, execution speed limit and standard stop braking function, improve the object of work mechanism operational reliability.
For achieving the above object, technological scheme of the present invention is as follows:
A kind of thread brake, comprise be connected with work mechanism boss rod tooth axle, screw pair self-locking mechanism, be positioned at the band brake speed-adjustable motor of described screw pair self-locking mechanism side and the lubrication box for installing described tooth axle and described screw pair self-locking mechanism;
Described screw pair self-locking mechanism comprises the screw rod that one end is connected by coupling with described band brake speed-adjustable motor, the toothed-belt brake disc nut be threaded with the described screw rod the other end and two pieces lay respectively at described toothed-belt brake disc nut both sides, and are fixedly installed on the brake disc of described lubrication box inwall;
The groove of described toothed-belt stop-nut is meshed with the groove of described tooth axle, and the rotational resistance of described coupling is greater than the resistance that described toothed-belt brake disc nut rotates on described screw rod.
Preferably, the tooth axle be provided with in the ledge bearing housing of the input end both sides of described lubrication box for supporting described tooth axle keeps bearing.
Preferably, the screw rod be provided with in the ledge bearing housing of the output terminal both sides of described lubrication box for supporting described screw rod keeps bearing.
Pass through technique scheme, a kind of thread brake provided by the invention utilizes the self-lock mechanism of screw pair, the rotating speed of the toothed-belt brake disc nut carrying machine work torque is controlled by the rotating speed of band brake speed-adjustable motor control screw rod, to realize coordinating electrical equipment speed governing to the main frame of work mechanism, execution speed limit and standard stop braking function, work mechanism reliability of operation can be improved, be mainly applicable to crane lifting hoisting mechanism, also be applicable to other field of movable machinery.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Fig. 1 is the schematic top plan view of a kind of thread brake disclosed in the embodiment of the present invention;
Fig. 2 is the schematic rear view of a kind of thread brake disclosed in the embodiment of the present invention.
Corresponding part title in figure represented by numeral:
1, tooth axle 2, screw rod 3, toothed-belt brake disc nut 4, brake disc
5, coupling 6, band brake speed-adjustable motor 7, lubrication box 8, tooth axle keep bearing
9, screw rod keeps bearing
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is clearly and completely described.
According to Fig. 1 to 2, the invention provides a kind of thread brake, comprise be connected with work mechanism boss rod tooth axle 1, screw pair self-locking mechanism, be positioned at the band brake speed-adjustable motor 6 of screw pair self-locking mechanism side and the lubrication box 7 for installing tooth axle 1 and screw pair self-locking mechanism; Screw pair self-locking mechanism comprises the screw rod 2 that one end is connected by coupling 5 with band brake speed-adjustable motor 6, the toothed-belt brake disc nut 3 be threaded with screw rod 2 the other end and two pieces lay respectively at toothed-belt brake disc nut 3 both sides, and are fixedly installed on the brake disc 4 of lubrication box 7 inwall; The groove of toothed-belt stop-nut is meshed with the groove of tooth axle 1, the rotational resistance of coupling 5 is greater than the resistance that toothed-belt brake disc nut 3 rotates on screw rod 2, wherein, the tooth axle be provided with in the ledge bearing housing of the input end both sides of lubrication box 7 for support teeth axle 1 keeps bearing 8, and the screw rod be provided with in the ledge bearing housing of the output terminal both sides of lubrication box 7 for studdle 2 keeps bearing 9.
The high speed shaft of work mechanism main frame is connected with the axle head that goes out of tooth axle 1, operation torque is passed to tooth axle 1, and tooth axle 1 is arranged on both sides tooth axle and keeps in the endoporus of bearing 8.Gear on tooth axle 1 and toothed-belt brake disc nut 3 form gear pair, and tooth axle 1 is by transmission of torque to toothed-belt brake disc nut 3, and toothed-belt brake disc nut 3 is arranged on screw rod 2, and forms screw pair.Screw rod 2 is arranged on screw rod and keeps in the endoporus of bearing 9, and the axle head that goes out of screw rod 2 is connected by large inertia compensate coupling 5 with the axle head that goes out of band brake speed-adjustable motor 6.
When torque actuated toothed-belt brake disc nut 3 rotates and screw rod 2 produce torque differences, make it produce along screw rod 2 axial displacement, brake when rubbing surface and the brake disc 4 rubbing surface close contact be fixed on lubrication box 7 of both sides on toothed-belt brake disc nut 3 just produces spiral self-locking.Now, band brake speed-adjustable motor 6 is utilized to be controlled by the torque rotary speed of large inertia compensate coupling 5 pairs of screw rods 2, namely can the host work torque of control action on toothed-belt brake disc nut 3 and speed.Namely limit by toothed-belt brake disc nut 3 pairs of host work speed, regulate or brake.
The torque that the frictional force rotary inertia torque calculation of coupling 5 being designed to be greater than toothed-belt brake disc nut 3 and screw rod 2 is formed, also self-locking and braking can be produced (because the rotational resistance of coupling 5 is greater than the resistance that toothed-belt brake disc nut 3 rotates on screw rod 2 to host work torque when band brake speed-adjustable motor 6 loses efficacy or its braking member lost efficacy, band brake speed-adjustable motor 6 lost efficacy or it braking member lost efficacy time, along with the inertia rotating speed of screw rod 2 disappears, screw pair self-locking mechanism carries out self-locking and braking, namely the potential energy rotating speed of main frame can not exceed the inertia rotating speed of screw rod 2, ensure potential energy slow releasing in controlled situation.), avoid the generation of driving and stall event.
Lubrication box 7 possesses seal oil leakproof effect, to built-in bearing, friction pair, gear lubricate.
A kind of thread brake provided by the invention utilizes the self-lock mechanism of screw pair, the rotating speed controlling screw rod 2 by band brake speed-adjustable motor 6 controls the rotating speed of the toothed-belt brake disc nut 3 carrying machine work torque, to realize coordinating electrical equipment speed governing to the main frame of work mechanism, execution speed limit and standard stop braking function.
During normal work, band brake speed-adjustable motor 6 is modulated into and host synchronization rotating speed and work rhythm, and the reliability of safeguard work host work, when after heavy lift, little micro-capacity band brake speed-adjustable motor 6 of apparatus of the present invention need only be opened when declining, weight does not need to open main frame by declining by instruction speed in order, greatly reduces mair motor opening times.When the former speed limit of work mechanism main frame, speed control system fault, or during the misfunctioning of brake of band brake speed-adjustable motor 6 of the present invention, to kinetic energy, used energy, resilience energy, the potential energy of work mechanism main frame, especially the potential energy of hoisting winding structure possesses in good time self-locking action, stop the serious accident generation of driving, stall, work mechanism reliability of operation can have been improved.
The present invention is mainly applicable to crane lifting hoisting mechanism, is particularly useful for last defence during Hoisting Machinery elevator hoisting mechanism control braking system faults stall, is also applicable to other field of movable machinery.
To the above-mentioned explanation of disclosed a kind of thread brake embodiment, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. a thread brake, it is characterized in that, comprise be connected with work mechanism boss rod tooth axle, screw pair self-locking mechanism, be positioned at the band brake speed-adjustable motor of described screw pair self-locking mechanism side and the lubrication box for installing described tooth axle and described screw pair self-locking mechanism;
Described screw pair self-locking mechanism comprises the screw rod that one end is connected by coupling with described band brake speed-adjustable motor, the toothed-belt brake disc nut be threaded with the described screw rod the other end and two pieces lay respectively at described toothed-belt brake disc nut both sides, and are fixedly installed on the brake disc of described lubrication box inwall;
The groove of described toothed-belt brake disc nut is meshed with the groove of described tooth axle, and the rotational resistance of described coupling is greater than the resistance that described toothed-belt brake disc nut rotates on described screw rod.
2. a kind of thread brake according to claim 1, is characterized in that, the tooth axle be provided with in the ledge bearing housing of the input end both sides of described lubrication box for supporting described tooth axle keeps bearing.
3. a kind of thread brake according to claim 1, is characterized in that, the screw rod be provided with in the ledge bearing housing of the output terminal both sides of described lubrication box for supporting described screw rod keeps bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310205803.6A CN103277438B (en) | 2013-05-28 | 2013-05-28 | A kind of thread brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310205803.6A CN103277438B (en) | 2013-05-28 | 2013-05-28 | A kind of thread brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103277438A CN103277438A (en) | 2013-09-04 |
| CN103277438B true CN103277438B (en) | 2016-04-06 |
Family
ID=49060036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310205803.6A Expired - Fee Related CN103277438B (en) | 2013-05-28 | 2013-05-28 | A kind of thread brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103277438B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090288A (en) * | 2015-09-07 | 2015-11-25 | 河南省黄河防爆起重机有限公司 | Fully-explosionproof hydraulic brake |
| CN107525616B (en) * | 2017-10-23 | 2023-11-10 | 荆门市炬峰机械设备制造有限公司 | Parking efficiency detects frock |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3605443A (en) * | 1969-08-04 | 1971-09-20 | Interlake Steel Corp | Torque limiter |
| DE3603307A1 (en) * | 1986-02-04 | 1987-08-06 | Rhein Getriebe Gmbh | Load-moment lock |
| CN2125575U (en) * | 1992-03-27 | 1992-12-23 | 归丁华 | Manually operated lift |
| CN201619981U (en) * | 2010-02-04 | 2010-11-03 | 杭州洛基机械制造有限公司 | Winch with good brake effect |
| CN202164068U (en) * | 2011-06-30 | 2012-03-14 | 中船江南重工股份有限公司 | Lifting mechanism of gantry crane |
| CN203285886U (en) * | 2013-05-28 | 2013-11-13 | 无锡市恒畅起重物流机械有限公司 | Screw brake |
-
2013
- 2013-05-28 CN CN201310205803.6A patent/CN103277438B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3605443A (en) * | 1969-08-04 | 1971-09-20 | Interlake Steel Corp | Torque limiter |
| DE3603307A1 (en) * | 1986-02-04 | 1987-08-06 | Rhein Getriebe Gmbh | Load-moment lock |
| CN2125575U (en) * | 1992-03-27 | 1992-12-23 | 归丁华 | Manually operated lift |
| CN201619981U (en) * | 2010-02-04 | 2010-11-03 | 杭州洛基机械制造有限公司 | Winch with good brake effect |
| CN202164068U (en) * | 2011-06-30 | 2012-03-14 | 中船江南重工股份有限公司 | Lifting mechanism of gantry crane |
| CN203285886U (en) * | 2013-05-28 | 2013-11-13 | 无锡市恒畅起重物流机械有限公司 | Screw brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103277438A (en) | 2013-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3328782B1 (en) | Motor-operated crane drive | |
| CN103277438B (en) | A kind of thread brake | |
| CN107399654A (en) | A kind of construction lift of safe transmission | |
| CN203285886U (en) | Screw brake | |
| US8246010B2 (en) | Fluid shear actuated hoist brake | |
| CN203570883U (en) | Centrifugal brake | |
| CN201801336U (en) | Worm gear self-locking elevator | |
| CN104154183B (en) | Speed reducing gear group with self-locking function and electric actuating mechanism | |
| CN103332625B (en) | A kind of clutch brake and the winch and the method for operation thereof that comprise this device | |
| CN203345987U (en) | Energy-saving winch | |
| CN103195848B (en) | Automatic compensation device of brake | |
| CN102829162A (en) | Traction engine | |
| CN103899720A (en) | Reversible driving speed reduction mechanism for precision power transmission system | |
| CN203214726U (en) | Slipper abrasion automatic-compensation device for hydraulic disk brake | |
| CN202768788U (en) | Dragger | |
| CN202883831U (en) | Speeding braking device | |
| CN201053467Y (en) | Electric hoist elastic coupling | |
| CN103754790A (en) | Dual-drive lifting mechanism | |
| CN209428025U (en) | A kind of novel elevator brake apparatus and dynamic compaction machinery | |
| CN202529732U (en) | Portal crane with safety brake | |
| CN205173318U (en) | Clutch and equipment for packing | |
| CN204025539U (en) | A kind of train of reduction gears with auto-lock function and electric actuator thereof | |
| CN206645682U (en) | A kind of mine hoist Special straight-line motor assist brake apparatus | |
| CN201292935Y (en) | Brake device of oil pumping machine | |
| CN206234324U (en) | A kind of clutch, planet gear clutch and punch press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 |