CN201737670U

CN201737670U - Pulley anti-dropping device applied in lifting platform

Info

Publication number: CN201737670U
Application number: CN2010202897729U
Authority: CN
Inventors: 江剑平; 高良玉; 李泽理; 毕淑杰; 孙红丽
Original assignee: CITIC Heavy Industries Co Ltd; Luoyang Mining Machinery and Engineering Design Institute Co Ltd
Current assignee: CITIC Heavy Industries Co Ltd; Luoyang Mining Machinery and Engineering Design Institute Co Ltd
Priority date: 2010-08-09
Filing date: 2010-08-09
Publication date: 2011-02-09
Anticipated expiration: 2020-08-09

Abstract

A pulley anti-dropping device applied in a lifting platform consists of a pulley (1), a steel wire rope (2), a plunging head (3), a casing ring (4), a steel pipe (5), a hanger plate (6), a first pin shaft (7), an ear plate (8), a cotter pin (9) and a second pin shaft (10), wherein the steel wire rope is wound on the pulley with a left drooping end and a right drooping end that are exposed, the left drooping end of the steel wire rope is tightly locked with the casing ring through the plunging head after being wound on the casing ring which is connected on the steel pipe in a penetrating way, the first pin shaft is fixed at two ends of the hanger plate through the limiting of the cotter pin together with the steel pipe connected in the penetrating way, the right drooping end of the steel wire rope is tightly locked with the casing ring through the plunging head after being wound on the casing ring which is connected on the second pin shaft in the penetrating way, the second pin shaft is fixed on the ear plate through the limiting of the cotter pin together with the casing ring connected in the penetrating way, the hanger plate is welded with a balance weight, the ear plate is welded with a welding lifting platform, and the pulley is installed on a driving shaft. If a chain is in fracture failure, the lifting platform and the balance weight are pulled by the steel wire rope to achieve the purpose of safety protection.

Description

Be applied in the pulley falling proof device in the lifting table

Technical field

The utility model belongs to the anti-slip technology field, specially refers to a kind of pulley falling proof device that is applied in the lifting table.

Background technology

The lifting table that lifting table, especially automated welding use is the key equipment of rivet welding job shop, and this equipment can be used for manned aloft work.

At present; the lifting mechanism of the domestic welding lifting table that generally uses is a linked transmission; in use the carrier bar of chain fracture occurs through regular meeting; or because of chain pin wearing and tearing generation disengagement phenomenon; cause lifting table in use to fall suddenly, cause the lifting table distortion, the lifting table frame is destroyed; serious meeting causes the operating personal on the lifting table to produce injures and deaths, has restricted the safety and the manufacturing schedule of applying unit.

Summary of the invention

For addressing the above problem, the utility model has designed a kind of pulley falling proof device that is applied in the lifting table, this installs low cost of manufacture, manufacture craft is simple, practical, can prevent the influence that the lifting mechanism conduction chain causes because of fracture suddenly effectively, make lifting table under the unexpected situation about rupturing of chain, can lean on the traction of this pulley falling proof device and make lifting table be in normal working, reached safe relieved working environment, prolong the service life of jig.

For realizing above-mentioned utility model purpose, the utility model adopts following technical scheme:

The described pulley falling proof device that is applied in the lifting table is to be made of pulley, steel rope, bundle head, the collar, steel pipe, boatswain chair, first bearing pin, otic placode, spring cotter and second bearing pin, wherein steel rope is wrapped in and exposes left and right low end on the pulley, steel rope left side low end locks it by pricking head after twining the collar mutually, then cross-under is on steel pipe for the collar, and first bearing pin is fixed on the two ends of boatswain chair by the spacing steel pipe together with institute's cross-under of spring cotter; The right low end of steel rope locks it by pricking head after twining the collar mutually, and then cross-under is on second bearing pin for the collar, and second bearing pin is fixed on the otic placode by the spacing collar together with institute's cross-under of spring cotter.

Because adopt aforesaid technical scheme, the utility model produces following solution effect:

One, can effectively prevent falling suddenly of lifting table;

Two, remaining balance block and lifting table is in balance and at the uniform velocity works;

Three, simple and reliable, can on various welding lifting tables, promote the use of, have vast market prospect.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the connection scheme drawing that the utility model is used in lifting table;

Fig. 3 is the left view of Fig. 2;

Among the above-mentioned figure: the 1-pulley; The 2-steel rope; 3-pricks head; The 4-collar; The 5-steel pipe; The 6-boatswain chair; 7-first bearing pin; The 8-otic placode; The 9-spring cotter; 10-second bearing pin; The 11-transmission shaft; The 12-sprocket wheel; 13-pulley falling proof device; The 14-balance block; The 15-bay-lift; The 16-track.

The specific embodiment

In conjunction with Fig. 1, the pulley falling proof device that is applied in the lifting table of the present utility model is by pulley 1, steel rope 2, prick 3, the collar 4, steel pipe 5, boatswain chair 6, first bearing pin 7, otic placode 8, spring cotter 9 and second bearing pin 10 constitute, wherein steel rope 2 is wrapped in and exposes left and right low end on the pulley 1, steel rope 2 left low ends lock it by pricking 3 twining the collar 4 backs mutually, then cross-under is on steel pipe 5 for the collar 4, and first bearing pin 7 is fixed on the two ends of boatswain chair 6 by the spacing steel pipe 5 together with institute's cross-under of spring cotter 9; Steel rope 2 right low ends lock it by pricking 3 twining the collar 4 backs mutually, and then cross-under is on second bearing pin 10 for the collar 4, and second bearing pin 10 is fixed on the otic placode 8 by the spacing collar 4 together with institute's cross-under of spring cotter 9.

Steel rope 2 left low ends have identical architectural feature with bundle 3 and first bearing pin 7 with second bearing pin, 10 employed spring cotters 9 with the employed collar 4 of steel rope 2 right low ends, that is to say the collar 4, prick 3 and spring cotter 9 have commonality, therefore no longer set up another label.But because the internal diameter unanimity of the collar 4, so the external diameter of first bearing pin 7 and second bearing pin 10 is inequality.

During concrete the use, boatswain chair 6 and otic placode 8 want relative fixed could use device of the present utility model, such as lifting table in conjunction with Fig. 2, earlier boatswain chair 6 is welded on the balance block 14, otic placode 8 is welded on the bay-lift 15, pulley 1 is contained on the transmission shaft 11, and bay-lift 15 is along passing track 16 oscilaltions under sprocket wheel 12 drives.In case faults such as fracture occur as chain in the lifting mechanism of Fig. 2; just can lean on the steel rope 2 in the pulley falling proof device 13 drawing bay-lift 15 and balance block 14 fully; to reach the purpose of safety guard-safeguard; also can change the carrier bar that damages safer, efficiently simultaneously, thoroughly avoid because the fracture of carrier bar causes the generation of equipment accident.

Above-mentioned described pulley falling proof device 13 is meant device of the present utility model.

Claims

1. pulley falling proof device that is applied in the lifting table, it is characterized in that: this pulley falling proof device is by pulley (1), steel rope (2), prick head (3), the collar (4), steel pipe (5), boatswain chair (6), first bearing pin (7), otic placode (8), spring cotter (9) and second bearing pin (10) constitute, wherein steel rope (2) is wrapped on the pulley (1) and exposes a left side, right low end, the left low end of steel rope (2) locks it by pricking head (3) after twining the collar (4) mutually, then cross-under is on steel pipe (5) for the collar (4), and first bearing pin (7) is fixed on the two ends of boatswain chair (6) by the spacing steel pipe together with institute's cross-under (5) of spring cotter (9); The right low end of steel rope (2) locks it by pricking head (3) after twining the collar (4) mutually, then cross-under is on second bearing pin (10) for the collar (4), and second bearing pin (10) is fixed on the otic placode (8) by the spacing collar together with institute's cross-under (4) of spring cotter (9).