CN107161863A

CN107161863A - Locking control device of self for crane gear

Info

Publication number: CN107161863A
Application number: CN201710488649.6A
Authority: CN
Inventors: 徐亚
Original assignee: Henan Zhongyuan Lingkong Hoisting Equipment Co Ltd
Current assignee: HEBEI ZHANXING SLING GROUP Co.,Ltd.
Priority date: 2017-06-23
Filing date: 2017-06-23
Publication date: 2017-09-15
Anticipated expiration: 2037-06-23
Also published as: CN107161863B

Abstract

The present invention relates to the locking control device of self for crane gear, its technical scheme solved is：Including fixed outer ring, inner ring and disc cam, the outer edge surface of inner ring is provided with circumferential groove, and the end face of circumferential groove is hinged with multiple voussoirs, and the articulated section of voussoir is equipped with torsion spring, and one end of torsion spring is connected with inner ring, and the other end is connected with voussoir；By multiple uniform protuberances and partes glabra, smooth connection is constituted the outer edge surface of disc cam successively, and protuberance is contacted 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 voussoir is placed in groove；Groove is contacted built with sliding block, one end of sliding block with the partes glabra of disc cam, has gap between the other end of sliding block and the other end of voussoir；It is equipped with disc cam on input shaft, inner ring and output shaft is housed, torque spring is housed between input shaft and output shaft；Clever structure of the present invention, simple operation is safe.

Description

Locking control device of self for crane gear

Technical field

The present invention relates to crane gear field, the particularly locking control device of self for crane gear.

Background technology

In the crane gear course of work, in order to prevent the occurrence of weight causes to inadvertently fall off because of its gravity, lead to Reversion self-locking device, especially Hand operating hoist, chain block, hand winch etc. some itself are often installed additional on crane gear without dynamic The light crane equipment of power apparatus, simultaneously because manpower completion is relied primarily on during this kind of equipment availability, therefore it is to operator's Security protection is particularly important.Kind equipment majority is generally equipped with reversion self-locking device, but these self-locking devices at present More original control structure, such as self-locking spring or click, this structure not only poor reliability, and operating also more not Just, self-locking or unblock could be completed, it is necessary to carry out gear to it and change such as conventional click structure, once maloperation pole has It is likely to result in larger security incident；And self-locking spring be although not required to operation bidirectional i.e. can be achieved self-locking with unblock, but its Easily skidded when being worked under big load, equally exist larger potential safety hazard.

The content of the invention

For above-mentioned situation, to make up the technical deficiency present in prior art, the present invention, which provides one kind, to be used to reset Standby locking control device of self.

Its solve technical scheme be：Including fixing outer ring, the inner ring being placed on the inside of fixed outer ring and being placed on the inside of inner ring Disc cam, the outer edge surface of inner ring be provided with the end face through circumferential groove on circumferential groove, inner ring be hinged with it is circumferentially uniform Multiple voussoirs, the articulated section of voussoir is equipped with torsion spring, and one end of torsion spring is connected with inner ring, and the other end is connected with voussoir, composition wedge Block rotates the structure for making one end of voussoir extrude contact in real time with fixed outer ring through torsion spring on inner ring；

By multiple uniform protuberances 7 and partes glabra 8, smooth connection is constituted the outer edge surface of described disc cam successively, protuberance 7 contact with the inner edge surface of inner ring, and the bottom land of circumferential groove has multiple along the being radially arranged of inner ring and one-to-one with voussoir Groove, the other end of voussoir is placed in groove；Groove built with slidable sliding block, one end of sliding block and disc cam it is smooth Portion 8 is contacted, and has gap between the other end of sliding block and the other end of voussoir, when disc cam is rotated, the protrusion of disc cam Portion 7 extrudes sliding block, and sliding block is slided in groove and extruding the other end of voussoir makes voussoir be rotated on inner ring；

Input shaft is housed on described disc cam, equipped with the output shaft being sleeved on input shaft on inner ring, have on input shaft around Tight torque spring thereon, one end of torque spring is connected with input shaft, and the other end is connected with output shaft, when input axial direction one Torque spring is rich tight when side is rotated, and output shaft is rotated simultaneously through torque spring with input shaft, when the axial opposite side of input is rotated Torque spring loosens, and output shaft can remains stationary.

Clever structure of the present invention, simple operation in actual use, need to only be controlled to input shaft, simplify Operating procedure, and according to real load size, the corresponding increase of frictional force between voussoir and fixed outer ring or reduction, not only can be by Equipment locking, it is also ensured that do not occur skidding between voussoir and fixed outer ring, greatly improve safety in utilization.

Brief description of the drawings

Fig. 1 is front view of the invention.

Fig. 2 is right side view of the invention.

Isometric cutaway view when Fig. 3 is present invention work.

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 is provided with the end face through circumferential groove 4 on circumferential groove 4, inner ring 2 and is hinged with Circumferentially uniform multiple voussoirs 5, the articulated section of voussoir 5 is equipped with torsion spring 6, and one end of torsion spring 6 is connected with inner ring 2, the other end and Voussoir 5 is connected, and constituting voussoir 5 and being rotated through torsion spring 6 on inner ring 2 makes one end and fixed outer ring 1 of voussoir 5 extrude what is contacted in real time Structure；

By multiple uniform protuberances 7 and partes glabra 8, smooth connection is constituted the outer edge surface of described disc cam 3 successively, protrusion Portion 7 is contacted with the inner edge surface of inner ring 2, the bottom land of circumferential groove 4 have it is multiple along the being radially arranged of inner ring 2 and with voussoir 5 one by one Corresponding groove 9, the other end of voussoir 5 is placed in groove 9；Groove 9 built with slidable sliding block 10, one end of sliding block 10 with The partes glabra 8 of disc cam 3 is contacted, and has gap between the other end of sliding block 10 and the other end of voussoir 5, when 3 turns of disc cam When dynamic, the extruding sliding block 10 of protuberance 7 of disc cam 3, sliding block 10 makes wedge in the interior other end for sliding and extruding voussoir 5 of groove 9 Block 5 is rotated on inner ring 2；

It is equipped with described disc cam 3 on input shaft 11, inner ring 2 equipped with the output shaft 12 being sleeved on input shaft 11, input There is the torque spring 13 taken up thereon on axle 11, one end of torque spring 13 is connected with input shaft 11, the other end and output shaft 12 connections, when input shaft 11 is rotated to side, torque spring 13 is rich tight, and output shaft 12 is same with input shaft 11 through torque spring 13 When rotate, when input shaft 11 is rotated to opposite side, torque spring 13 loosens, and output shaft 12 can remains stationary.

In order that the present invention reaches more stable self-locking effect, the protuberance 7 and 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 10 reaches the effect of real-time contact with disc cam 3, described sliding block 10 is provided with and sliding block 10 The perpendicular interior groove 14 of glide direction, it is interior equipped with the contiguous block 15 being placed in groove 9 and interior groove 14 simultaneously on inner ring 2 Groove 14 is built with the thrust spring 16 of connection sliding block 10 and contiguous block 15, and composition sliding block 10 is through thrust spring 16 on inner ring 2 Sliding makes sliding block 10 and the structure of the real-time contact of disc cam 3.

The present invention in use, be arranged on crane gear, with hand by the present invention according to different crane gear use demands Exemplified by ceeling car, the present invention is arranged on hand winch and ensures to fix outer ring 1, inner ring 2, input shaft 11 and output shaft 12 same Axle is set, and fixed outer ring 1 is completely fixed, make the position of input shaft 11 fix and can own rotation, steel wire is installed on output shaft 12 Handle is installed on lay winding wire ropes on capstan winch, steel wire winch, input shaft 11；

According to the structure distribution shown in Fig. 1, when lifting heavy, rotating clockwise handle rotates input shaft 11, due to weight Steel wire rope is set to produce reversal effect power counterclockwise to output shaft 12, input shaft 11 is relatively rotated with output shaft 12, torque spring 13 tighten up with the rotation of input shaft 11, and when torque spring 13 is tightened up completely, torque spring 13 rotates in same direction with input shaft 11 And driving output shaft 12 to rotate in same direction, the steel wire winch concomitant rotation being connected with output shaft 12 simultaneously makes steel wire on steel wire winch Winding is tightened up, and weight is elevated；

Because in lifting process, inner ring 2 is rotated clockwise with output shaft 12, between fixed outer ring 1 and voussoir 5 simultaneously Under frictional force effect, voussoir 5 does deflection counterclockwise on inner ring 2 reduces the normal pressure between voussoir 5 and fixed outer ring 1, Frictional Slipping is produced between voussoir 5 and fixed outer ring 1；When tighten up angle of the torque spring 13 on input shaft 11 makes more greatly cam The 3 extruding sliding block 10 of protuberance 7 makes sliding block 10 in groove 9 during slip, and the slip of sliding block 10 makes sliding block 10 squeeze the generation of voussoir 5 Pressure rotates counterclockwise the generation of voussoir 5, and rotating counterclockwise for voussoir 5 makes voussoir 5 be separated with fixed outer ring, it can thus be concluded that going out：When Input shaft 11 is rotated clockwise when making heavy lift, and the relative position regardless of disc cam 3 Yu inner ring 2, voussoir 5 will not By inner ring 2 and the fixed locking of outer ring 1, lifting process safety and stability.

When heavy lift to precalculated position, release handle makes input shaft 11 run out of steam, and now makees in the gravity of weight Under, output shaft 12 produces reversion, i.e. weight with steel wire winch and produces whereabouts；At the same time, due to the torsion of torque spring 13 Power makes input shaft 11 produce return motion, and the torsion spring 6 of the articulated section of voussoir 5 rotates clockwise the generation of voussoir 5, thrust spring 16 Thrust make interior Slideslip of the sliding block 10 to inner ring 2, above-mentioned motion is completed simultaneously, the twisting force through torsion spring 6, voussoir 5 with it is solid Determine to produce extruding contact between outer ring 1, the reversal effect power and voussoir 5 of the generation of inner ring 2 and fixed outer ring 1 are driven in output shaft 12 Between extrude generation frictional force effect under, voussoir 5 is produced on inner ring 2 clockwise deflection make voussoir 5 and fixation outer ring 1 between Normal pressure be that frictional force further increases, do not stop deflection with voussoir 5, the frictional force between voussoir 5 and fixed outer ring 1 When constantly increasing to the gravity for being enough to overcome weight, inner ring 2 is locked on fixed outer ring 1 by voussoir 5, and weight is suspended in midair safely.

When needing to make weight land, rotating counterclockwise handle inverts input shaft 11, because inner ring 2 is by the locking of voussoir 5 In fixed outer ring 1, therefore output shaft 12 is remained stationary as, and the reversion of input shaft 11 drives disc cam 3 to be rotated in the inner side of inner ring 2, The extruding sliding block 10 of protuberance 7 of disc cam 3, the lateral direction of sliding block 10 to inner ring 2 slides and extrudes voussoir 5, when acting on When power on input shaft 11 overcomes the frictional force between voussoir 5 and fixed outer ring 1, being squeezed on inner ring 2 through sliding block 10 of voussoir 5 Generation is rotated counterclockwise, and the frictional force between voussoir 5 and fixed outer ring 1 reduces and produces separation trend；Now, due to weight Gravity and act in the presence of the reversal effect power on input shaft 11, inner ring 2 starts reversion, weight-drop with output shaft 12；

Equally, in falling process of heavy, it can be made to stop at an arbitrary position, input shaft 11 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 is remained stationary as, and inner ring 2 is anti- To rotation, now, the torsion spring 6 of the articulated section of voussoir 5 rotates clockwise the generation of voussoir 5, and the thrust of thrust spring 16 makes sliding block 10 to inner ring 2 interior Slideslip, principle during with stopping during heavy lift is identical, voussoir 5 most at last inner ring 2 be locked at it is solid Determine on outer ring 1, weight stops 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 voussoir and the location status of fixed outer ring, meanwhile, when output shaft is inverted under load effect, input shaft is relatively defeated Shaft is remained stationary as, and the frictional force between voussoir and outer ring makes voussoir be rotated on inner ring, so that inner ring and fixed outer ring card Tightly, reversion self-locking is realized with this；In actual use, input shaft need to be only controlled, the extra locking without installing additional Controlling organization, simplifies operating procedure；When being rotated due to voussoir on inner ring, the normal pressure between voussoir and fixed outer ring is continuous Frictional force between increase, therefore voussoir and fixed outer ring constantly increases, according to real load size, voussoir and fixed outer ring it Between frictional force accordingly increase or reduce, not only can be by equipment locking, while its frictional force matched with load can ensure wedge Do not occur skidding between block and fixed outer ring, greatly improve safety in utilization.

Claims

1. a kind of locking control device of self for crane gear, it is characterised in that including fixed outer ring（1）, be placed in fixed outer ring （1）The inner ring of inner 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）, inner ring（2）On through circumferential groove（4）End face be hinged with circumferentially uniform multiple voussoirs（5）, voussoir（5）Articulated section Equipped with torsion spring（6）, torsion spring（6）One end and inner ring（2）Connection, the other end and voussoir（5）Connection, constitutes voussoir（5）Through torsion spring （6）In inner ring（2）Upper rotation makes voussoir（5）One end and fixed outer ring（1）The structure of extruding contact in real time；

Described disc cam（3）Outer edge surface by multiple uniform protuberances（7）And partes glabra（8）Structure in smoothing junction successively Into protuberance（7）With inner ring（2）Inner edge surface contact, circumferential groove（4）Bottom land have multiple along inner ring（2）Be radially arranged And and voussoir（5）One-to-one groove（9）, voussoir（5）The other end be placed in groove（9）It is interior；Groove（9）Built with can slide Dynamic sliding block（10）, sliding block（10）One end and disc cam（3）Partes glabra（8）Contact, sliding block（10）The other end and wedge Block（5）The other end between have gap, work as disc cam（3）During rotation, disc cam（3）Protuberance（7）Extrude sliding block （10）, sliding block（10）In groove（9）It is interior to slide and extrude voussoir（5）The other end make voussoir（5）In inner ring（2）It is upper to rotate；

Described disc cam（3）It is upper that input shaft is housed（11）, inner ring（2）Upper be equipped with is sleeved on input shaft（11）On output shaft （12）, input shaft（11）On have the torque spring taken up thereon（13）, torque spring（13）One end and input shaft（11）Even Connect, the other end and output shaft（12）Connection, works as input shaft（11）Torque spring when being rotated to side（13）It is rich tight, output shaft（12） Through torque spring（13）With input shaft（11）Rotate simultaneously, work as input shaft（11）Torque spring when being rotated to opposite side（13）Put Pine, output shaft（12）Can remains stationary.

2. a kind of locking control device of self for crane gear according to claim 1, it is characterised in that disc cam （3）Protuberance（7）With disc cam（3）Circumcircle it is tangent, disc cam（3）Partes glabra（8）With disc cam（3）'s Inscribed circle is tangent.

3. a kind of locking control device of self for crane gear according to claim 11, it is characterised in that sliding block（10） It is provided with and sliding block（10）The perpendicular interior groove of glide direction（14）, inner ring（2）Upper be equipped with is placed in groove simultaneously（9）With it is interior Groove（14）Interior contiguous block（15）, interior groove（14）Built with connection sliding block（10）And contiguous block（15）Thrust spring （16）, constitute sliding block（10）Through thrust spring（16）In inner ring（2）Upper slip makes sliding block（10）With disc cam（3）Real-time contact Structure.