CN2752219Y - Automatic protecting broken rope elevator hanging hook - Google Patents

Abstract

The utility model discloses a broken rope automatic protecting hanging hook for cranes, which is composed of a hanging hook casing body 1, fixed pulleys 3 and a hanging hook 4. The inner part of the hanging hook casing body 1 is provided with tongs clamping type broken rope self-locking devices 2 and broken rope detecting devices 5, wherein the broken rope detecting devices 5 are in contact with wedge grip bodies in the tongs clamping type broken rope self-locking devices 2 through push connecting rods 7. Because the tongs clamping type broken rope self-locking devices are additionally provided, the broken rope automatic protecting hanging hook for cranes can clamp steel ropes in time when the ropes are broken and the steel ropes can not be clamped loosely. Therefore, the utility model can be safely used and can prevent loss which caused by suspenders suddenly falling off so that the utility model is suitable for the popularization and the application in cranes.

Description

Disconnected rope is the protection crane hook automatically

Technical field

The utility model relates to the improvement of crane hook, and specifically a kind of disconnected rope is protected crane hook automatically.

Background technology

At present, departments such as building engineering all use hoisting crane as the instrument that promotes article, with steel rope and suspension hook article be hung in crane jib below, the lifting of suspension is the realization that lifts by steel rope again, the reach of suspension with retreat and can realize that steel rope need be walked around a plurality of pulleys in the process of lifting by sliding before and after the pulley on the crane jib, because friction for a long time, fracture appears in steel rope easily, and this phenomenon that rope-breaking article weighs down will occur, and causes unnecessary loss or injures and deaths.And the crane hook that uses at present is made of pulley, suspension hook housing and suspension hook, and its weak point is: can not stop the article tenesmus during wire cable rupture, thereby cause various losses.

Summary of the invention

It is a kind of when wire cable rupture that the purpose of this utility model is to provide; can not only stop the suspension tenesmus; and secondary rope need not be set; make the disconnected rope that installation is easy, productive costs is low and protect crane hook automatically; this suspension hook not only can be firm to the steel rope clamping when disconnected rope; and wire rope grip can not loose, reduce the intensity of steel rope.

For reaching above purpose; the technical scheme that the utility model adopted is: this disconnected rope is the protection crane hook automatically; constitute by suspension hook housing and fixed pulley, suspension hook; it is characterized in that being equipped with in the suspension hook housing the disconnected rope of clamp type self-locking device and the disconnected detector of restricting, disconnected rope detector contacts by the wedge shape clamp in the disconnected self-locking device of restricting of promotion connecting rod and clamp type.The utility model is also implemented by following measure: the disconnected rope of described clamp type self-locking device is established four altogether, be fixed on four bights of suspension hook inner walls symmetrically, respectively by trapezoidal housing, self-locking spring, slideway, clamping head, the wedge shape clamp constitutes, on the trapezoidal housing, the center, lower surface is provided with circular hole, so that penetrate steel rope, respectively be provided with a wedge shape clamp in trapezoidal enclosure interior both sides, be equipped with the chute parallel on the two side of wedge shape clamp with the hypotenuse of trapezoidal housing, chute is stuck on the corresponding slideway on the trapezoidal inner walls, so that the wedge shape clamp can along slideway stable on, lower slider, two wedge shape clamps are respectively equipped with interlaced clamping head on the relative side, the end of clamping head is the semicircle cambered surface, the surface is provided with horizontal anti-skidding line, self-locking spring is fixed on the bottom of two wedge shape clamps, moves up so that can promote the wedge shape clamp; Disconnected rope detector is established two altogether, be fixed on suspension hook inner walls middle part, the rope detector that breaks is made of detection slide block, detection roller, detection slide block guide shaft, detection slide block retracing spring respectively, surveying slide block guide shaft seat portion is fixed on the interior adapter plate of suspension hook housing, surveying slide block set is contained on the detection slide block guide shaft, be provided with on detection slide block guide shaft and survey the slide block retracing spring, the turning cylinder of surveying roller is fixed on the end of surveying slide block; The promotion connecting rod is reached with the contacted contact lever of wedge shape clamp by vertical top pull bar, transverse arm and constitutes, vertical top pull bar is contained in the guide pipe, the oscillating axle that promotes the transverse arm of connecting rod is fixed on the end outer wall of trapezoidal housing, penetrate in trapezoidal shell ends wall guide hole with the contacted contact lever of wedge shape clamp, establish retracing spring in the outer end of the vertical top pull bar that promotes connecting rod.When hoisting crane is in running order, because steel rope is the tension plumbness, survey roller and compressed by steel rope this moment, survey slide block and survey the slide block retracing spring along surveying the compression of slide block guide shaft, the vertical top pull bar connecting terminal that promotes connecting rod is in surveys the slide block thickness, promote the connecting rod transverse arm and be in horizontality, what promote connecting rod then promotes the wedge shape clamp with the contacted contact lever of wedge shape clamp, self-locking spring is compressed, making clamping head and passing between therebetween the steel rope has certain interval, and steel rope can the free upper and lower disconnected rope of the clamp type self-locking device that passes; When crane rope is disconnected suddenly, because steel rope loses the pulling force of weight suddenly, the detection roller that survey slide block this moment is not compressed, under the effect of surveying the slide block retracing spring, survey slide block rapidly along surveying the extrapolation of slide block guide shaft, the pull bar contact, vertical top that promotes connecting rod is in surveys the thinnest some position of slide block, promote the connecting rod transverse arm and be in heeling condition, what promote connecting rod this moment then loses roof pressure power to the wedge shape clamp in the disconnected rope of the clamp type self-locking device with the contacted contact lever of wedge shape clamp, the wedge shape clamp is under the effect of self-locking spring, move to the top of trapezoidal housing inner chamber rapidly, make clamping head chucking steel rope, and steel rope draws the tight more of card more.When mounted, in the disconnected rope of four clamp types self-locking device, top two opposite with following both direction, when right side rope was disconnected, the disconnected rope of lower right and upper left clamp type self-locking device blocked the left side steel rope, strains weight; When left side rope was disconnected, lower left and top-right disconnected rope self-locking device blocked the right side steel rope, the tension weight; When fixed pulley place wire cable rupture, the disconnected rope of two top clamp types self-locking device blocks left and right two steel ropes, the tension weight.

The beneficial effects of the utility model are: compare with the suspension hook of present use, owing to increased the disconnected rope of clamp type self-locking device, so when disconnected rope, can in time steel rope be blocked, and can not press from both sides diffusing to steel rope, so safe in utilization, can prevent the loss that the unexpected tenesmus of suspension causes, be specially adapted to hoisting crane and apply.

Description of drawings

Fig. 1 is the utility model inner structure scheme drawing.

Fig. 2 restricts self-locking device along the axis cross-sectional schematic for the utility model clamp type is disconnected.

Fig. 3 is that the utility model is along Fig. 2 A-A section cross-sectional schematic.

Fig. 4 analyses and observe enlarged diagram for the disconnected rope of the utility model detector along axis.

The specific embodiment

Make the utility model with reference to accompanying drawing 1,2,3,4.Should protect crane hook automatically by disconnected rope; constitute by suspension hook housing 1 and fixed pulley 3, suspension hook 4; the disconnected rope of clamp type self-locking device 2 and the disconnected detector 5 of restricting are housed in suspension hook housing 1, and disconnected rope detector 5 contacts by the wedge shape clamp in the disconnected self-locking device 2 of restricting of promotion connecting rod 7 and clamp type.The disconnected rope of described clamp type self-locking device 2 is established four altogether, be fixed on four bights of suspension hook housing 1 inwall symmetrically, respectively by trapezoidal housing 21, self-locking spring 22, slideway 23, clamping head 24, wedge shape clamp 26 constitutes, on trapezoidal housing 21, the center, lower surface is provided with circular hole, so that penetrate steel rope, respectively be provided with a wedge shape clamp 26 in trapezoidal housing 21 inner both sides, be equipped with the chute parallel 25 on the two side of wedge shape clamp 26 with the hypotenuse of trapezoidal housing 21, chute 25 is stuck on the corresponding slideway 23 on trapezoidal housing 21 inwalls, so that wedge shape clamp 26 can along slideway 23 stable on, lower slider, two wedge shape clamps 26 are respectively equipped with interlaced clamping head 24 on the relative side, the end of clamping head 24 is the semicircle cambered surface, the surface is provided with horizontal anti-skidding line 27, self-locking spring 22 is fixed on the bottom of two wedge shape clamps 26, moves up so that can promote wedge shape clamp 26; Disconnected rope detector 5 is established two altogether, be fixed on suspension hook housing 1 inwall middle part, the rope detector 5 that breaks is made of detection slide block 51, detection roller 52, detection slide block guide shaft 54, detection slide block retracing spring 52 respectively, surveying 54 portions of slide block guide shaft is fixed on the adapter plate in the suspension hook housing 1, surveying slide block 51 is sleeved on the detection slide block guide shaft 54, be provided with on detection slide block guide shaft 54 and survey slide block retracing spring 53, the turning cylinder of surveying roller 52 is fixed on the end of surveying slide block 51; Promotion connecting rod 7 is reached with wedge shape clamp 26 contacted contact levers by vertical top pull bar, transverse arm and constitutes, vertical top pull bar is contained in the guide pipe 8, the oscillating axle 6 that promotes the transverse arm of connecting rod 7 is fixed on the end outer wall of trapezoidal housing 21, penetrate in trapezoidal housing 21 end wall guide holes with wedge shape clamp 26 contacted contact levers, establish retracing spring 9 in the outer end of the vertical top pull bar that promotes connecting rod 7.

Claims (4)

1, a kind of disconnected rope is protected crane hook automatically; constitute by suspension hook housing (1) and fixed pulley (3), suspension hook (4); it is characterized in that being equipped with in suspension hook housing (1) clamp type disconnected rope self-locking device (2) and the disconnected detector (5) of restricting, the rope detector (5) that breaks contacts with the disconnected interior wedge shape clamp of self-locking device (2) of restricting of clamp type by promoting connecting rod (7).

2; disconnected rope according to claim 1 is protected crane hook automatically; it is characterized in that described clamp type disconnected rope self-locking device (2) establishes four altogether; be fixed on four bights of suspension hook housing (1) inwall symmetrically; respectively by trapezoidal housing (21); self-locking spring (22); slideway (23); clamping head (24); wedge shape clamp (26) constitutes; on trapezoidal housing (21); the center, lower surface is provided with circular hole; respectively be provided with a wedge shape clamp (26) in the inner both sides of trapezoidal housing (21); be equipped with the chute (25) parallel on the two side of wedge shape clamp (26) with the hypotenuse of trapezoidal housing (21); chute (25) is stuck on the corresponding slideway (23) on trapezoidal housing (21) inwall; two wedge shape clamps (26) are respectively equipped with interlaced clamping head (24) on the relative side; the end of clamping head (24) is the semicircle cambered surface; the surface is provided with horizontal anti-skidding line (27), and self-locking spring (22) is fixed on the bottom of two wedge shape clamps (26).

3; disconnected rope according to claim 1 is protected crane hook automatically; it is characterized in that described disconnected rope detector (5) establishes two altogether; be fixed on suspension hook housing (1) inwall middle part; disconnected rope detector (5) is respectively by surveying slide block (51); survey roller (52); survey slide block guide shaft (54); surveying slide block retracing spring (53) constitutes; surveying slide block guide shaft (54) seat portion is fixed on the interior adapter plate of suspension hook housing (1); surveying slide block (51) is sleeved on the detection slide block guide shaft (54); be provided with on detection slide block guide shaft (54) and survey slide block retracing spring (53), the turning cylinder of surveying roller (52) is fixed on the end of surveying slide block (51).

4, disconnected rope according to claim 1 is protected crane hook automatically; it is characterized in that described promotion connecting rod (7) is reached and the contacted contact lever formation of wedge shape clamp (26) by vertical top pull bar, transverse arm; vertical top pull bar is contained in the guide pipe (8); the oscillating axle (6) that promotes the transverse arm of connecting rod (7) is fixed on the end outer wall of trapezoidal housing (21); penetrate in trapezoidal housing (21) end wall guide hole with the contacted contact lever of wedge shape clamp (26), establish retracing spring (9) in the outer end of the vertical top pull bar that promotes connecting rod (7).

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