CN107355492A - A kind of crane gear foolproof apparatus - Google Patents
A kind of crane gear foolproof apparatus Download PDFInfo
- Publication number
- CN107355492A CN107355492A CN201710488647.7A CN201710488647A CN107355492A CN 107355492 A CN107355492 A CN 107355492A CN 201710488647 A CN201710488647 A CN 201710488647A CN 107355492 A CN107355492 A CN 107355492A
- Authority
- CN
- China
- Prior art keywords
- inner ring
- depression bar
- groove
- disc cam
- edge surface
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
- F16D59/02—Self-acting brakes, e.g. coming into operation at a predetermined speed spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/04—Driving gear manually operated
- B66D1/06—Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transmission Devices (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The present invention relates to crane gear foolproof apparatus, including fixed outer ring, inner ring and disc cam, the outer edge surface of inner ring is provided with circumferential groove, the end face of circumferential groove is hinged with multiple depression bars, the articulated section of depression bar and inner ring is equipped with torsion spring, one end of depression bar is hinged with adjusting rod, and one end of adjusting rod is equipped with the roller being placed between fixed outer ring and lozenges, and the outer edge surface of inner ring is provided with lozenges；By multiple uniform protuberances and partes glabra, smooth connection is formed the outer edge surface of disc cam successively, and protuberance contacts with the inner edge surface of inner ring, and the bottom land of circumferential groove has multiple grooves being radially arranged along inner ring, and the other end of depression bar is placed in groove；Groove contacts built with sliding block, one end of sliding block with the partes glabra of disc cam；Input shaft is housed on disc cam, output shaft is housed on inner ring, there is boss on the outer edge surface of input shaft, fluted on the inner edge surface of output shaft, boss is placed in groove；Clever structure of the present invention, simple operation are safe.
Description
Technical field
The present invention relates to crane gear field, particularly a kind of crane gear foolproof apparatus.
Background technology
In the crane gear course of work, the occurrence of in order to prevent weight from causing to inadvertently fall off because of its gravity, lead to
Often install reversion self-locking device, especially Hand operating hoist, chain block additional on crane gear, hoist engine etc. some itself is unpowered
The light crane equipment of device, simultaneously because manpower completion is relied primarily on during this kind of equipment availability, therefore its peace to operator
Full property protection is particularly important.At present the kind equipment majority equipped with reversion self-locking device, but these self-locking devices be mostly compared with
Original control structure, such as self-locking spring or click, this structure not only poor reliability, and operate also more inconvenience,
Such as conventional click structure, it is necessary to which gear conversion is carried out to it could complete self-locking or unblock, once have can for maloperation pole
It can cause larger security incident；And although self-locking spring is not required to operation bidirectional and self-locking and unblock can be achieved, but it is big
Easily skidded when being worked under load, equally exist larger potential safety hazard.
The content of the invention
For the above situation, to make up the technical deficiency present in prior art, the present invention provides a kind of crane gear and used
Foolproof apparatus.
Its solve technical scheme be：Including fixed outer ring, the inner ring being placed on the inside of fixed outer ring and it is placed on the inside of inner ring
Disc cam, the outer edge surface of inner ring is provided with circumferential groove, and the end face through circumferential groove, which is hinged with, on inner ring is circumferentially distributed
Multiple depression bars, the articulated section of depression bar and inner ring is equipped with torsion spring, and one end of torsion spring is connected with inner ring, and the other end is connected with depression bar,
Form the structure that depression bar rotates through torsion spring on inner ring；
Adjusting rod is housed, one end of adjusting rod and one end of depression bar are hinged, and the other end of adjusting rod, which is equipped with, is placed in fixation on depression bar
Rotatable roller between outer ring and inner ring, the outer edge surface of inner ring are provided with lozenges, and the outer edge surface of roller can be outer with fixation
The inner edge surface and lozenges of circle contact simultaneously；
By multiple uniform protuberances 10 and partes glabra 11, smooth connection is formed the outer edge surface of described disc cam successively, protrusion
Portion 10 is contacted with the inner edge surface of inner ring, and the bottom land of circumferential groove has multiple to be corresponded along the being radially arranged of inner ring and with depression bar
Groove, the other end of depression bar is placed in groove；Groove is built with slidable sliding block, one end of sliding block and putting down for disc cam
Cunning portion 11 contacts, and has gap between the other end of sliding block and the other end of depression bar, when disc cam rotates, disc cam it is convex
Go out portion 10 and extrude sliding block, sliding block slides in groove and extruding the other end of depression bar makes depression bar be rotated on inner ring；
Input shaft is housed on described disc cam, the output shaft being sleeved on input shaft, the outer rim of input shaft are housed on inner ring
There is boss on face, fluted on the inner edge surface of output shaft, boss is placed in groove, when input shaft drives boss to be rotated in groove
When crossing certain angle, an end face of boss extruding groove makes output shaft and input shaft while rotated.
Clever structure of the present invention, simple operation, input shaft need to be only controlled, simplify operating procedure；Due to
When inner ring inverts, the normal pressure between roller and fixed outer ring and lozenges constantly increases, therefore roller and fixed outer ring and wedge
Frictional force between shape face constantly increases, not only can be by equipment locking, it is also ensured that between roller and fixed outer ring and lozenges
Skidding does not occur, greatly improves safety in utilization.
Brief description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is the right side view of the present invention.
Fig. 3 is the A-A sectional views of the present invention.
Fig. 4 is the front view of the disc cam of the present invention.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with accompanying drawing.
Provided by Fig. 1 to Fig. 3, the present invention includes fixed outer ring 1, the inner ring 2 for being placed in the fixed inner side of outer ring 1 and is placed in inner ring
The disc cam 3 of 2 inner sides, the outer edge surface of inner ring 2 are provided with circumferential groove 4, and the end face through circumferential groove 4 is hinged with inner ring 2
The multiple depression bars 5 being circumferentially distributed, the articulated section of depression bar 5 and inner ring 2 are equipped with torsion spring 6, and one end of torsion spring 6 is connected with inner ring 2, separately
One end is connected with depression bar 5, forms the structure that depression bar 5 rotates through torsion spring 6 on inner ring 2；
Adjusting rod 7 is housed, one end and one end of depression bar 5 of adjusting rod 7 are hinged, and the other end of adjusting rod 7, which is equipped with, to be placed on depression bar 5
Rotatable roller 8 between fixed outer ring 1 and inner ring 2, the outer edge surface of inner ring 2 are provided with lozenges 9, the outer edge surface of roller 8
It can be contacted simultaneously with the inner edge surface and lozenges 9 of fixed outer ring 1；
By multiple uniform protuberances 10 and partes glabra 11, smooth connection is formed the outer edge surface of described disc cam 3 successively, convex
The inner edge surface for going out portion 10 with inner ring 2 contacts, the bottom land of circumferential groove 4 have it is multiple along the being radially arranged of inner ring 2 and with depression bar 5 one
Groove 12 corresponding to one, the other end of depression bar 5 are placed in groove 12；Groove 12 built with slidable sliding block 13, sliding block 13
One end contacts with the partes glabra 11 of disc cam 3, has gap between the other end of sliding block 13 and the other end of depression bar 5, works as dish type
When cam 3 rotates, the protuberance 10 of disc cam 3 extrudes sliding block 13, and sliding block 13 slides in groove 12 and extrudes the another of depression bar 5
One end makes depression bar 5 be rotated on inner ring 2；
Input shaft 14 is housed on described disc cam 3, the output shaft 15 being sleeved on input shaft 14, input are housed on inner ring 2
There is boss 16 on the outer edge surface of axle 14, fluted 17 on the inner edge surface of output shaft 15, boss 16 is placed in groove 17, works as input shaft
14 drive boss 16 are in groove 17 when rotating certain angle, boss 16 extrude groove 17 an end face make output shaft 15 with
Input shaft 14 rotates simultaneously.
In order that the present invention reaches more stable self-locking effect, protuberance 7 and the disc cam 3 of described disc cam 3
Circumcircle it is tangent, the inscribed circle of the partes glabra 8 and disc cam 3 of disc cam 3 is tangent.
In order that sliding block 13 reaches the effect of real-time contact with disc cam 3, described sliding block 13 is provided with and sliding block 13
The perpendicular interior groove 18 of glide direction, it is interior equipped with the contiguous block 19 being placed in groove 12 and interior groove 18 simultaneously on inner ring 2
Groove 18 is built with connection sliding block 13 and the thrust spring 20 of contiguous block 19, and composition sliding block 13 is through thrust spring 20 on inner ring 2
Sliding makes sliding block 13 and the structure of the real-time contact of disc cam 3.
In order that the present invention reaches more preferable locking effect, the articulated section of described depression bar 5 and adjusting rod 7 is provided with revolution
Spring 21, one end of main spring 21 are connected with depression bar 5, and the other end of main spring 21 is connected with adjusting rod 7, form adjusting rod
7 structures rotated through main spring 21 on depression bar 5.
The present invention in use, be arranged on crane gear, with volume by the present invention according to different crane gear use demands
Exemplified by raising machine, the present invention is arranged on hoist engine and ensures that fixing outer ring 1, inner ring 2, input shaft 14 and output shaft 15 coaxially sets
Put, fixed outer ring 1 be completely fixed, make the position of input shaft 14 fix and can own rotation, steel wire winch is installed on output shaft 15,
Lay winding wire ropes on steel wire winch, handle is installed on input shaft 14；
According to the structure distribution shown in Fig. 1, when lifting heavy, rotating clockwise handle rotates input shaft 14, due to weight
Steel wire rope is set to produce reversal effect power counterclockwise to output shaft 15, input shaft 14 relatively rotates with output shaft 15, when boss 16
With input shaft 14 turn to the end face of groove 17 extruding contact when, output shaft 15 rotates in same direction with input shaft 14, with output shaft
The steel wire winch concomitant rotations of 15 connections simultaneously make steel wire wind on steel wire winch to tighten up, and weight is elevated；
Because in lifting process, inner ring 2 rotates clockwise with output shaft 15, between fixed outer ring 1 and roller 8 simultaneously
Under frictional force effect, roller 8, which produces, to be rotated and adjusted bar 7 does deflection counterclockwise with depression bar 5 on inner ring 2, roller 8 with it is solid
The normal pressure determined between outer ring 1 reduces, simultaneously because twisting resistance caused by main spring 21 makes roller 8 and fixed outer ring 1 real-time
Contact and separated with lozenges 9, generation friction rolling is locked without producing between roller 8 and fixed outer ring 1, lifting process peace
It is complete stable.
When heavy lift to precalculated position, release handle makes input shaft 9 run out of steam, now in the Action of Gravity Field of weight
Under, output shaft 15 produces reversion with steel wire winch, i.e. weight produces whereabouts；At the same time, due to torsion spring 6, to produce depression bar 5 suitable
Hour hands are rotated, and roller 8 is rotated clockwise and extruded simultaneously with fixed outer ring 1 and lozenges 9 and contacted therewith, inner ring 2 it is counterclockwise
Rotation makes lozenges 9 be pressed further by roller 8, and roller 8 itself can not rotate and clamping and the inner edge surface and wedge shape of fixed outer ring 1
Between face 9, i.e., inner ring 2 is locked on fixed outer ring 1 by roller 8, and weight is suspended in midair safely.
When needing to make weight land, rotating counterclockwise handle inverts input shaft 14, because inner ring 2 is by the locking of roller 8
In fixed outer ring 1, therefore output shaft 15 remains stationary as, and the reversion of input shaft 14 drives disc cam 3 to be rotated in the inner side of inner ring 2,
The protuberance 10 of disc cam 3 extrudes sliding block 13, and the lateral direction of sliding block 13 to inner ring 2 is slided and extrudes depression bar 5, when acting on
When power on input shaft 14 overcomes the frictional force between roller 8 and fixed outer ring 1 and lozenges 9, roller 8 is with depression bar 5 through sliding block
13 generation on inner ring 2 that is squeezed in rotates counterclockwise, and the frictional force between roller 8 and fixed outer ring 1 reduces simultaneously divides with lozenges 9
From locking event resolves of the roller 8 to inner ring 2；Now, due to weight gravity and act on the reversal effect on input shaft 14
In the presence of power, inner ring 2 starts to invert with output shaft 15, weight-drop；
Equally, in falling process of heavy, it can be made to stop at an arbitrary position, input shaft 14 disappears because of reversal effect power during stopping
Lose and stop operating, inner ring 2 continues to rotate backward under the Action of Gravity Field of weight, i.e., disc cam 3 remains stationary as, and inner ring 2 is anti-
To rotation, now, torsion spring 6 rotates clockwise the generation of depression bar 5, and the thrust of thrust spring 20 makes sliding block 13 to the inner side of inner ring 2
Slide, identical with the principle during heavy lift during stopping, most inner ring 2 is locked on fixed outer ring 1 roller 8 at last, weight
Stop falling and reliable static.
Clever structure of the present invention, simple operation, input shaft drives disc cam to rotate as Poewr transmission mechanism makes sliding block
Slide to control the location status between roller and fixed outer ring and lozenges, meanwhile, when output shaft inverts under load effect,
Input shaft remains stationary as with respect to output shaft, the frictional force between roller and outer ring make roller be clamped on fixed outer ring and inner ring it
Between, so as to realize reversion self-locking；In actual use, input shaft need to be only controlled, without installing extra locking additional
Controlling organization, simplify operating procedure；When being inverted due to inner ring, the normal pressure between roller and fixed outer ring and lozenges is continuous
Increase, therefore the frictional force between roller and fixation outer ring and lozenges constantly increases, according to real load size, roller is with consolidating
Determine frictional force accordingly increase or the reduction between outer ring and lozenges, not only can be by equipment locking, while it matches with load
Frictional force can ensure that skidding does not occur between roller and fixed outer ring and lozenges, greatly improve safety in utilization.
Claims (4)
1. a kind of crane gear foolproof apparatus, it is characterised in that including fixed outer ring（1）, be placed in fixed outer ring（1）It is interior
The inner ring of side（2）Be placed in inner ring（2）The disc cam of inner side（3）, inner ring（2）Outer edge surface be provided with circumferential groove（4）, it is interior
Circle（2）On through circumferential groove（4）End face be hinged with the multiple depression bars being circumferentially distributed（5）, depression bar（5）With inner ring（2）Hinge
Socket part is equipped with torsion spring（6）, torsion spring（6）One end and inner ring（2）Connection, the other end and depression bar（5）Connection, form depression bar（5）Through
Torsion spring（6）In inner ring（2）The structure of upper rotation；
Depression bar（5）It is upper that adjusting rod is housed（7）, adjusting rod（7）One end and depression bar（5）One end be hinged, adjusting rod（7）It is another
End is equipped with and is placed in fixed outer ring（1）And inner ring（2）Between rotatable roller（8）, inner ring（2）Outer edge surface be provided with wedge shape
Face（9）, roller（8）Outer edge surface can be with fixed outer ring（1）Inner edge surface and lozenges（9）Contact simultaneously；
Described disc cam（3）Outer edge surface by multiple uniform protuberances（10）And partes glabra（11）Structure in smoothing junction successively
Into protuberance（10）With inner ring（2）Inner edge surface contact, circumferential groove（4）Bottom land have it is multiple along inner ring（2）Be radially arranged
And and depression bar（5）One-to-one groove（12）, depression bar（5）The other end be placed in groove（12）It is interior；Groove（12）Built with
Slidable sliding block（13）, sliding block（13）One end and disc cam（3）Partes glabra（11）Contact, sliding block（13）The other end
With depression bar（5）The other end between have gap, work as disc cam（3）During rotation, disc cam（3）Protuberance（10）Extruding is slided
Block（13）, sliding block（13）In groove（12）It is interior to slide and extrude depression bar（5）The other end make depression bar（5）In inner ring（2）Upper rotation；
Described disc cam（3）It is upper that input shaft is housed（14）, inner ring（2）Upper be equipped with is sleeved on input shaft（14）On output shaft
（15）, input shaft（14）Outer edge surface on have boss（16）, output shaft（15）Inner edge surface on it is fluted（17）, boss（16）Put
In groove（17）It is interior, work as input shaft（14）Drive boss（16）In groove（17）When inside rotating certain angle, boss（16）Squeeze
Press groove（17）An end face make output shaft（15）With input shaft（14）Rotate simultaneously.
A kind of 2. crane gear foolproof apparatus according to claim, it is characterised in that disc cam（3）It is prominent
Go out portion（7）With disc cam（3）Circumcircle it is tangent, disc cam（3）Partes glabra（8）With disc cam（3）Inscribed circle
It is tangent.
A kind of 3. crane gear foolproof apparatus according to claim 1, it is characterised in that sliding block（13）It is provided with
With sliding block（13）The perpendicular interior groove of glide direction（18）, inner ring（2）Upper be equipped with is placed in groove simultaneously（12）With interior groove
（18）Interior contiguous block（19）, interior groove（18）Built with connection sliding block（13）And contiguous block（19）Thrust spring（20）, structure
Into sliding block（13）Through thrust spring（20）In inner ring（2）Upper slip makes sliding block（13）With disc cam（3）The structure of real-time contact.
A kind of 4. crane gear foolproof apparatus according to any one of claims 1 to 3, it is characterised in that depression bar（5）
With adjusting rod（7）Articulated section main spring is installed（21）, main spring（21）One end and depression bar（5）Connection, turn round bullet
Spring（21）The other end and adjusting rod（7）Connection, form adjusting rod（7）Through main spring（21）In depression bar（5）The knot of upper rotation
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710488647.7A CN107355492B (en) | 2017-06-23 | 2017-06-23 | A kind of lifting equipment foolproof apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710488647.7A CN107355492B (en) | 2017-06-23 | 2017-06-23 | A kind of lifting equipment foolproof apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355492A true CN107355492A (en) | 2017-11-17 |
| CN107355492B CN107355492B (en) | 2018-05-08 |
Family
ID=60273044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710488647.7A Active CN107355492B (en) | 2017-06-23 | 2017-06-23 | A kind of lifting equipment foolproof apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107355492B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284408A (en) * | 2018-03-23 | 2018-07-17 | 浙江大学山东工业技术研究院 | A kind of fixture |
| CN108298451A (en) * | 2018-01-25 | 2018-07-20 | 江苏绿叶环境工程集团有限公司 | A kind of hoister guide rail rope sheave that security performance is high |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040113007A1 (en) * | 2002-12-17 | 2004-06-17 | Sutton James A. | Hand winch handle with release feature that permits cable to wind off of winch drum without handle rotation |
| GB2433060A (en) * | 2005-12-08 | 2007-06-13 | Magal Metallifacture Ltd | Winch for a vehicle spare wheel |
| EP2058266A1 (en) * | 2007-11-09 | 2009-05-13 | Talbot Industrie Decoupage Emboutissage | Hand winch |
| CN205294705U (en) * | 2015-12-14 | 2016-06-08 | 河南恒远恒山工业有限公司 | Hoist hoisting mechanism drum brake's self -lock device |
| CN205953390U (en) * | 2016-08-04 | 2017-02-15 | 衢州福创工业设计有限公司 | Loose pulley assembly who has self -locking function |
-
2017
- 2017-06-23 CN CN201710488647.7A patent/CN107355492B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040113007A1 (en) * | 2002-12-17 | 2004-06-17 | Sutton James A. | Hand winch handle with release feature that permits cable to wind off of winch drum without handle rotation |
| GB2433060A (en) * | 2005-12-08 | 2007-06-13 | Magal Metallifacture Ltd | Winch for a vehicle spare wheel |
| EP2058266A1 (en) * | 2007-11-09 | 2009-05-13 | Talbot Industrie Decoupage Emboutissage | Hand winch |
| CN205294705U (en) * | 2015-12-14 | 2016-06-08 | 河南恒远恒山工业有限公司 | Hoist hoisting mechanism drum brake's self -lock device |
| CN205953390U (en) * | 2016-08-04 | 2017-02-15 | 衢州福创工业设计有限公司 | Loose pulley assembly who has self -locking function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108298451A (en) * | 2018-01-25 | 2018-07-20 | 江苏绿叶环境工程集团有限公司 | A kind of hoister guide rail rope sheave that security performance is high |
| CN108298451B (en) * | 2018-01-25 | 2020-09-08 | 江苏绿叶环境工程集团有限公司 | Rope sheave for elevator guide rail that security performance is high |
| CN108284408A (en) * | 2018-03-23 | 2018-07-17 | 浙江大学山东工业技术研究院 | A kind of fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107355492B (en) | 2018-05-08 |
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Effective date of registration: 20210730 Address after: 061000 No. 6, industrial Street, Chengdong high tech park, Xianxian County Economic and Technological Development Zone, Cangzhou City, Hebei Province Patentee after: HEBEI ZHANXING SLING GROUP Co.,Ltd. Address before: 453400 Changyuan County, Xinxiang, Henan Wei Zhuang Industrial District Patentee before: HENAN ZHONGYUAN LINGKONG HOISTING EQUIPMENT Co.,Ltd. |
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