CN202296674U

CN202296674U - Safety protection device for hoist

Info

Publication number: CN202296674U
Application number: CN201120422302XU
Authority: CN
Inventors: 蔡东高; 施李佳; 吴杰
Original assignee: JIANGSU SHENXI BUILDING MACHINERY CO Ltd
Current assignee: JIANGSU SHENXI BUILDING MACHINERY CO Ltd
Priority date: 2011-10-28
Filing date: 2011-10-28
Publication date: 2012-07-04
Anticipated expiration: 2021-10-28

Abstract

The utility model discloses a safety protection device for a hoist, which comprises the hoist, a work wire rope and a safety wire rope, wherein a fixing seat is installed on one side of the hoist; a conical cavity is formed in the middle of the fixing seat; a rope pressing steel ball and a conical spiral pressure spring are sequentially arranged in the conical cavity from top to bottom; the rope pressing steel ball is installed on a guide pole and penetrates through a wall of the guide pole; and the guide pole penetrates through the fixing seat. When the work wire rope is broken, a compressed swinging arm is loosened, the rope pressing steel ball is driven by the conical spiral pressure spring so as to compress and lock the safety wire rope in the guide pole inwards under the guiding action of the conical cavity, the compressing stroke of the rope pressing steel ball is short, and the brake reaction is sensitive; the inner part of the fixing seat adopts the conical cavity structure, the pressing force of the rope pressing steel ball in the conical cavity can be increased when the fixing seat falls, the auto-lock function of the rope pressing steel ball can be achieved, and the braking effect is better, so that the safety of the hoist can be ensured.

Description

The safety guard of gig

Technical field

The utility model relates to a kind of lift system, relates in particular to a kind of safety guard of gig.

Background technology

As everyone knows, the main effect of gig is that material or equipment are sent to eminence or are sent to lower from eminence from lower, and it has simple in structure, installation, dismounting and advantage such as easy to use.But in construction, operation, often, therefore when the design gig, all safety guard can be installed, prevent the generation of falling accident because of the disconnected rope of the traction steel rope of cable of gig causes grave accident.Common protecting equipments for elevating conveyor adopts the Wedge-type rope broken protector more at present; Its keystone configuration comprises a movable voussoir and fixing voussoir, but between the two along the inclined-plane slide relative, when disconnected rope takes place in steel cable; Through compressing movable voussoir one side; Make the opposite side perk of movable voussoir and fixedly voussoir compress, and fastening between the two safe steel rope, thus guarantee that gig can not fall because of disconnected rope.But this fender guard structure is too complicated; Compress movable voussoir and need bigger power, can not instantaneously reach, and the slide relative between two voussoirs is prone to bad student's corrosion; Thereby reduced the action sensitivity of fender guard, the whereabouts stopping distance is prone to surpass the scope of national regulation.

The utility model content

The purpose of the utility model is to provide a kind of safety guard of gig, and it brakes sensitive, and the reaction time is short, and good braking effect, and the tenesmus distance is short, safe.

The purpose of the utility model is to realize through following technical scheme:

A kind of safety guard of gig comprises gig, load cable and safe steel rope, and said gig one side is equipped with permanent seat; Said permanent seat middle part is provided with conical cavity, from top to bottom is disposed with in the said conical cavity and presses rope steel ball and trochoid spiral stage clip, and baffle ring is installed in said conical cavity bottom and locking plate is used in the hole; Said pressure rope steel ball is installed on the guide pillar, and said pressure rope steel ball passes the guide pillar wall, and said guide pillar runs through permanent seat; Said guide pillar top is equipped with the annulus seat board; Said gig top is hinged with jib, and said jib inside is equipped with roll sleeve and the roller that cooperatively interacts, and said jib one side is provided with swing arm; Said swing arm end is equipped with fore-set; Said fore-set is placed on the annulus seat board, said load cable pass gig and be placed on roll sleeve and roller between, said safe steel rope is placed in the guide pillar.

Said permanent seat is fixed on the L shaped adapter plate, and said L shaped adapter plate transverse plate is provided with the conductor rope cover, and said L shaped adapter plate is through being bolted on the gig said safe steel wire penetrating conductor rope cover.

The beneficial effect of the utility model does; The safety guard of said gig; When the disconnected rope of load cable took place, it pressed rope steel ball to drive the directional tagging with conical cavity through the trochoid spiral stage clip, inwardly compressed and safe steel rope that locked guide pillar is interior; Press rope steel ball clamping stroke short, brake response is sensitive; And owing to adopt the conical cavity structure in the permanent seat, make and press the tenesmus of rope steel ball along with permanent seat that thrust strengthens in conical cavity, has realized pressing the auto-lock function of rope steel ball, braking effect is better, thereby has guaranteed the safety of gig.

Description of drawings

According to accompanying drawing and embodiment the utility model is done further explain below.

Fig. 1 is the structural representation of the safety guard of the said gig of the utility model;

Fig. 2 is the structural representation of safety lock rope mechanism in the safety guard of the said gig of the utility model;

Fig. 3 is the birds-eye view of safety lock rope mechanism in the safety guard of the said gig of the utility model;

Fig. 4 is the front view of rocker in the safety guard of the said gig of the utility model;

Fig. 5 is the birds-eye view of rocker in the safety guard of the said gig of the utility model.

Among the figure:

1, gig, 2, load cable, 3, safe steel rope, 4, permanent seat, 5, conical cavity; 6, press the rope steel ball, 7, the trochoid spiral stage clip, 8, baffle ring, 9, the hole uses locking plate, 10, guide pillar; 11, annular seat board, 12, jib, 13, roll sleeve, 14, roller, 15, swing arm; 16, fore-set, 17, L shaped adapter plate, 18, the conductor rope cover, 19, bolt.

The specific embodiment

As shown in Figure 1, in present embodiment, the safety guard of said gig; Comprise gig 1, load cable 2 and safe steel rope 3, gig 1 one sides are equipped with permanent seat 4, and the top is hinged with jib 12; Jib 12 1 sides are provided with swing arm 15, and said swing arm 15 ends are equipped with fore-set 16, and said fore-set 16 is placed on the annulus seat board 11; Load cable 2 passes gig 1 and jib 12, and safe steel rope 3 is fixed in the guide pillar 10, and permanent seat 4 is fixed on the L shaped adapter plate 17; L shaped adapter plate 17 is fixed on the gig 1 through bolt 19, and L shaped adapter plate 17 transverse plates are provided with conductor rope cover 18.

Shown in Fig. 2 and 3, permanent seat 4 middle parts are provided with conical cavity 5, from top to bottom are disposed with in the conical cavity 5 to press rope steel ball 6 and trochoid spiral stage clip 7; Conical cavity 5 bottoms are equipped with baffle ring 8 and hole with locking plate 9, press rope steel ball 6 to be installed on the guide pillar 10, and the said pressure steel ball 6 of restricting passes the guide pillar wall; And the pressure rope steel ball 6 that is installed on the guide pillar 10 is preferably 3; Also can be a plurality ofly, guide pillar 10 runs through permanent seat 4, and guide pillar 10 tops are equipped with annulus seat board 11.

Shown in Figure 4 and 5, jib 12 1 sides are provided with swing arm 15, and swing arm 15 ends are equipped with fore-set 16, and jib 12 inside are equipped with the roll sleeve 13 and roller 14 that cooperatively interacts.

During normal operation, load cable 2 passes gig 1 and is placed between the roll sleeve 13 and roller 14 in the jib 12, during owing to hoisting heavy; Load cable 2 stressed tightening, simultaneously load cable 2 applies pressure transversely through tension force to jib 12, makes swing arm 15 and gig 1 keeping parallelism state on the jib 12; Thereby swing arm 15 terminal fore-sets 16 hold out against and press down annulus seat board 11, and it is downward that annulus seat board 11 drives guide pillar 10, and compression trochoid spiral stage clip 7; Press rope steel ball 6 to move downward with trochoid spiral stage clip 7; Be in released state this moment, makes safe steel rope 3 guarantee the normal operation of gig smoothly through conductor rope cover 18 and guide pillar 10.

When rope was broken in off working state or generation, load cable 2 did not stress, and load cable 2 disappears to the pressure that jib 12 applies transversely through tension force simultaneously; Make the terminal fore-sets 16 of swing arm 15 overcome not the elastic force of trochoid spiral stage clip 7 and be lifted, at this moment, under the elastic force effect of trochoid spiral stage clip 7; Press rope steel ball 6 and guide pillar 10 upward movements, and press the directional tagging of rope steel ball 6, tighten up to the centre gradually through the conical cavity 5 in the permanent seat 4; And the safe steel rope 3 in guide pillar is drawn close until locking; After safe steel rope 3 lockings,, make and press of the tenesmus of rope steel ball 6 along with permanent seat 4 owing to adopt conical cavity 5 in the permanent seat 4; Thrust strengthens in conical cavity 5; Realized pressing the auto-lock function of rope steel ball 6, this moment, gig 1 was locked on safety steel rope 3 through permanent seat 4, had guaranteed equipment and personnel's safety.

Its braking of the safety guard of said gig is sensitive, and the reaction time is short, and good braking effect, and the tenesmus distance is short, safe.

Claims

1. the safety guard of a gig comprises gig (1), load cable (2) and safe steel rope (3), it is characterized in that: said gig (1) one side is equipped with permanent seat (4); Said permanent seat (4) middle part is provided with conical cavity (5); From top to bottom be disposed with in the said conical cavity (5) and press rope steel ball (6) and trochoid spiral stage clip (7), said conical cavity (5) bottom baffle ring (8) and hole to be installed with locking plate (9), the said pressure steel ball (6) of restricting is installed on the guide pillar (10); And said pressure rope steel ball (6) passes the guide pillar wall; Said guide pillar (10) runs through permanent seat (4), and said guide pillar (10) top is equipped with annulus seat board (11), and said gig (1) top is hinged with jib (12); Said jib (12) inside is equipped with roll sleeve (13) and the roller (14) that cooperatively interacts; Said jib (12) one sides are provided with swing arm (15), and said swing arm (15) end is equipped with fore-set (16), and said fore-set (16) is placed on the annulus seat board (11); Said load cable (2) pass gig (1) and be placed on roll sleeve (13) and roller (14) between, said safe steel rope (3) is placed in the guide pillar (10).

2. the safety guard of gig according to claim 1; It is characterized in that: said permanent seat (4) is fixed on the L shaped adapter plate (17); Said L shaped adapter plate (17) transverse plate is provided with conductor rope cover (18); Said L shaped adapter plate (17) is fixed on the gig (1) through bolt (19), and said safe steel rope (3) passes conductor rope cover (18).