CN2032606U

CN2032606U - Loading and unloading hook separating device

Info

Publication number: CN2032606U
Application number: CN 87209663
Authority: CN
Inventors: 吕伟
Original assignee: WATER CONSERVANCY MACHINERY FACTORY SHAANXI PROV
Current assignee: WATER CONSERVANCY MACHINERY FACTORY SHAANXI PROV
Priority date: 1987-06-27
Filing date: 1987-06-27
Publication date: 1989-02-15

Abstract

The utility model discloses a hook separating device which is used in the state of loading and unloading. The suspended hook is composed of two incurvate adjustable clamp tongues, and the elastic element between the clamp tongues can keep the distance of the clamp opening bigger than the diameter of the suspended ring at the time of unloading. The supporting point of the hook separating frame is positioned on the clamp tongue, and is balanced the weight on one end of the hook separating frame. A position block is arranged on the clamp tongue which upper part is a curved surface. When the hook separating device loading is lifted to the designed height, the hook separating frame is pulled upward. Under the combined actions of the gravity and the elastic element, the clamp opening is opened. Under the state of the unloading, the clamp opening can automatically open because of the combined actions of the balance weight and the elastic element.

Description

Loading and unloading hook separating device

The utility model belongs to a kind of can be applied to load, the unloading condition trip mechanism of use down, particularly is applicable to the trip mechanism of hammer ram in strong compaction method work progress.

The detacher of strong compaction method hammer ram (following general designation is rammed by force) is normally used a kind of based process construction equipment.The strong rammer detacher that uses has bogie type detacher (see figure 2) at present.This detacher is that the control that is used under the load condition is broken off relations, adopted and to have made the automatically reset balanced structure of suspension hook, but increased weight, strengthened scantling of structure, and the hammer ram drop point is repeated relatively poor, the collision and the wearing and tearing of especially breaking off relations between back detacher and arm and suspension hook and the hook housing are very serious, and breakdown speed is quite fast.

Be reported in automatic decoupling device such as CN85200064 utility model patent (see figure 3) under the unloading condition in addition, though it is automatically-unhooked that this detacher can carry out when off-load, but its structure is comparatively complicated, if the work when skew takes place suspension hook of lifted weight thing center of gravity is very unreliable.Particularly also do not find up to now in the prior art a kind ofly to utilize same detacher to carry out under load condition realizing that control breaks off relations, and realize that under unloading condition control is broken off relations and the detacher of automatically-unhooked function.

In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model be release a kind of simple in structure, safe and reliable, volume is little, in light weight, and be suitable for the device that breaks off relations under load, the unloading condition.

Describe in detail according to the technical scheme that the utility model proposes concrete device below.

Be used for load, the unloading condition detacher of use down, its suspension hook is to be made of aduncate two adjustable clamp tongues, between the two pincers tongues elastic element is housed, the fulcrum of detacher is positioned on the pincers tongue, on the pincers of one below unhook frame line of centers tongue, locating piece is housed, one pincers tongue first half outer rim is a curved surface, and the distance between curved surface and the fulcrum begins upwards more and more littler from roller and this pincers whip graft contact.Elastic element between two pincers tongues can remain on the diameter of the distance of two pincers tongue opening parts under the unloading condition greater than suspension ring.

Also can be in unhook frame one end counterweight, it is automatically-unhooked that it can be carried out under unloading condition.

Advantage of the present utility model and good effect be, and be simple in structure, greatly reduces than the existing weight with detacher, can alleviate the labour intensity of artificial hook.The drop point repeatability of lifted weight thing is much improved, and collision and wearing and tearing after can avoiding breaking off relations between detacher and arm and suspension hook and the hook housing have improved service life.Especially realized to reach the control unhook under load condition and under unloading condition, carrying out purpose automatically-unhooked and that control is broken off relations with same detacher.

Fig. 1: be the constructional drawing of a kind of embodiment of the utility model.

Fig. 2: be the constructional drawing of bogie type control detacher under the existing load condition.

Fig. 3: be the constructional drawing of automatic decoupling device under the existing unloading condition.

Now reaching embodiment in conjunction with the accompanying drawings does to describe further to the technical solution of the utility model.

As shown in Figure 1, the suspension hook of the detacher that load, unloading condition use down is made up of the aduncate two adjustable clamp tongues (1) of jaw, (2), two pincers tongue mouths (12) are often opened, but guarantee the diameter of the distance of pincers tongue mouths (12) when load less than suspension ring (9); And when realizing breaking off relations and after breaking off relations, the distance of pincers tongue mouths (12) is greater than the diameter of suspension ring (9).The elastic element (7) that is equipped with unhook frame (6) parallel position place between pincers tongue (1), (2) is a spring, and also available spring leaf or other have suitable elastomeric element.Spring is fixed by the boss on pincers tongue (1), (2) inner edge, is convenient to dismounting.The fulcrum B of unhook frame (6) is positioned on the pincers tongues (2), and unhook frame (6) is that centre of gration can back and forth be done circular motion with fulcrum B.And pincers tongue (1) first half outer rim is upwards more and more littler apart from the distance of fulcrum B.Roller (3) will clamp tongue (1), (2) self-locking with pincers tongue (1) contact point D frictionally, and unhook frame (6) is subjected to traction (11) when upwards doing circular motion, and roller (3) is increasing from the distance of pincers tongue (1) first half curved surface.Because the effect of spring (7) and gravity, move round about around lower bearing pin (5) in pincers tongue (1), (2), and jaw (12) then opens voluntarily, realize that the control under load or the unloading condition is broken off relations.Pincers tongues (1) are lower than unhook frame (6) centerline a positioning block (10) are housed, so that unhook frame (6) unlikely position that surpasses its line of centers downwards the time, and reach the purpose of locking pliers tongue (1), (2).

And can go up the end counterweight (8) that oppositely exceeds fulcrum B that (11) are located at unhook frame (6), the moment that the moment that counterweight (8) is formed for fulcrum B forms for fulcrum B greater than roller (3) and the friction force that clamps tongue (1) curved surface.During the load lifting,, make unhook frame (6) lock very tightly to pincers tongue (1), (2) by roller (3) and fulcrum B mainly by the effect of gravity.But when off-load is broken off relations, because the combined action of counterweight (8) and elastic element (7), move round about around lower bearing pin (5) in pincers tongue (1), (2), and jaw (12) then opens voluntarily, suspension ring (9) break away from pincers tongue (1), (2), thereby reach automatically-unhooked under the unloading condition.Also can go up (11) to unhook frame (6) by control setup and locate traction, the control that is implemented under the unloading condition is broken off relations.

Claims

1, a kind of load, unloading condition detacher of use down that is used for is by forming with weight-lifting equipment bonded assembly suspension hook frame (4), lower bearing pin (5), unhook frame (6), roller (3) and suspension hook.It is characterized in that, the suspension hook that can be used for the detacher under load, the unloading condition is made up of two adjustable clamp tongues (1), (2), the fulcrum B that one elastic element (7), unhook frame (6) are housed between pincers tongue (1), (2) is positioned on the pincers tongues (2), on the pincers tongue (1) of unhook frame (6) below the line of centers, a positioning block (10) is housed, pincers tongue (1) first half outer rim is a curved surface, and the distance between curved surface and the fulcrum B begins upwards more and more littler from roller (3) with pincers tongue (1) contact point D.

2, detacher according to claim 1 is characterized in that also can go up the fulcrum B that oppositely exceeds that (11) locates at unhook frame (6) holds counterweight.