CN202245677U

CN202245677U - Rotary hanging tool opening and closing device

Info

Publication number: CN202245677U
Application number: CN2011203404600U
Authority: CN
Inventors: 陈哲; 周兵; 李云辉; 张慧
Original assignee: LANZHOU LS HEAVY MACHINERY CO Ltd
Current assignee: LANZHOU LS HEAVY MACHINERY CO Ltd
Priority date: 2011-09-09
Filing date: 2011-09-09
Publication date: 2012-05-30
Anticipated expiration: 2021-09-09

Abstract

The utility model relates to a rotary hanging tool opening and closing device, which is used for controlling the opening and the closing of a hanging tool and structurally comprises a sleeve 2 and a tensioning shaft 1, wherein the tensioning shaft 1 can slide and rotate in the sleeve 2, the upper end of the tensioning shaft 1 is provided with an upper lead 1-1 and a lower lead 1-2, the lower end of the tensioning shaft 1 is provided with a T-shaped clamp block 1-3, the upper lead and the lower lead are respectively provided with a wave-shaped guide surface, the upper wave-shaped guide surface is provided with a straight groove, a gap between the wave-shaped guide surfaces of the upper lead and the lower lead forms a guide groove, and the sleeve 2 is provided with a guide pin shaft 2-1 capable of being matched with the guide groove in the radial direction and is provided with a T-shaped groove 3 capable of being matched with the T-shaped clamp block 1-3 under the T-shaped clamp block 1-3. The hanging tool opening and closing device has the advantages that the structure is simple, compact and stable, the cost is low, the use is convenient, a hanging tool is not inclined, and the rotary hanging tool opening and closing device can be widely applied to hanging tools and forging and pressing hanging tongs with automatic opening and closing control requirements.

Description

Rotary suspender switch circuit controller

Technical field

The utility model relates to a kind of suspender switch circuit controller of controlling the suspender opening and closing movement.

Background technology

In the suspender use, before lifting, require suspender to keep open state, so that material can get in the opening of suspender smoothly, when needs lift by cranes, make the suspender can be closed again, to clamp material, so just need a kind of suspender switch circuit controller.The existing employed switch circuit controller of suspender mainly contains two kinds; A kind of is to be representative with Chinese patent ZL200520070269.3; The weak point of this suspender switch circuit controller is: 1, three waveform spigot surfaces are arranged; Comprise two waveform master spigot surfaces and an auxiliary spigot surface, complex structure, difficulty of processing is big; 2, in the on-off action process, the friction position of parts is many, causes fault rate higher.Another kind is to be representative with Chinese patent ZL 200810228123.5; The weak point of this suspender switch circuit controller is: 1, will use this switch circuit controller, the fixedly fixed link 1 and hook 2 of switch circuit controller need be set on suspender, these parts are by the structure complicated of suspender; 2, switch circuit controller and attached parts thereof can not be symmetrically distributed with the axis of tongs; When mentioning tongs, can make tongs produce deflection like this, be unfavorable for workman's operation.

Summary of the invention

The utility model purpose: solve the above-mentioned technical matters that prior art exists.

A kind of rotary suspender switch circuit controller; Technical scheme is: its structure comprises sleeve 2 and can in sleeve 2, slide and the tension axle 1 that rotates; Said tension axle 1 upper end is provided with helical pitch 1-1, following helical pitch 1-2, and the lower end is provided with T type fixture block 1-3, and upper and lower helical pitch is respectively equipped with the waveform spigot surface; Last waveform spigot surface has straight trough; Space between the waveform spigot surface of upper and lower helical pitch forms guide groove, and sleeve 2 radially is being provided with the guiding bearing pin 2-1 that can cooperate with guide groove, the T type groove 3 that the below of T type fixture block 1-3 and T type fixture block 1-3 are suitable.

Described rotary suspender switch circuit controller, on the said tension axle 1 helical pitch 1-1, helical pitch 1-2 respectively has 4 waveform spigot surfaces down, at a distance of 90 °, rectangular distribution; 4 of straight troughs are arranged on the waveform spigot surface of last helical pitch 1-1, at a distance of 90 °, rectangular distribution.

Described rotary suspender switch circuit controller, said guiding bearing pin 2-1 has two, is symmetrical set.

This switch circuit controller relies on the directional tagging that slides up and down with the waveform spigot surface of tension axle 1 that tension axle 1 is rotated, and tension axle 1 relative sleeve upwards slides once, to lower slider once, and tension 1 half-twist.When initial position, T type fixture block 1-3 is stuck in the T type groove 3, and this moment, suspender relied on switch circuit controller to keep open state; When needs clamp material, let tension axle 1 relative sleeve upwards slide once, more once to lower slider; Tension axle 1 half-twist; T type fixture block 1-3 is half-twist also, and this moment, the length direction of T type fixture block 1-3 was consistent with the opening direction of T type groove 3, and T type fixture block 1-3 can break away from T type groove 3 smoothly; Suspender can be free closed, thereby pick up material.

This rotary suspender switch circuit controller has structurally reduced the waveform spigot surface, makes designs simplification, and the difficulty of processing reduces much like this, and has reduced the friction position, reduces fault rate; On last helical pitch 1-1, be provided with straight trough 1-1-1, prevent to strain axle and in unnecessary, deflect, guarantee tongs safety in use.The utility model has continued the advantage of Chinese patent ZL200520070269.3 in addition, can be installed on the axis of suspender, and when using tongs, tongs is not easy to take place deflection, is convenient to workman's operation.In addition; Because the design of T type fixture block itself can be born bigger shearing force and tensile force, thus the shortcoming that Chinese patent ZL 200810228123.5 said inverted T shape fixture blocks exist, promptly when the suspender tonnage is big; The T type fixture block of switch circuit controller must design greatlyyer, does not exist in fact.

Description of drawings

Fig. 1 is the structural representation of the utility model,

Wherein: 1 clamp shaft, the last helical pitch of 1-1, helical pitch under the 1-2,1-3T type fixture block, 2 sleeves, the 2-1 bearing pin that leads, 3T type groove;

Fig. 2 is the birds-eye view of sleeve,

Wherein: 2 sleeves, the 2-1 bearing pin that leads;

Fig. 3 is the structural representation of Chinese patent ZL200520070269.3;

Fig. 4 is the structural representation of Chinese patent ZL 200810228123.5,

Wherein: 4 fixed links, 5 hooks, 6 switch circuit controllers;

Fig. 5 is the figure that opens of the utility model,

Wherein: the last helical pitch of 1-1,1-1-1 straight trough, the last helical pitch of 1-1-2 inclined-plane, helical pitch under the 1-2, helical pitch inclined-plane under the 1-2-1, the 2-1 bearing pin that leads, the position of some A, B, the upper and lower relatively helical pitch of C indication guiding bearing pin;

Fig. 6 is stuck in the view of 3 li of T type grooves for T type fixture block 1-3;

Fig. 7 is the view that T type fixture block 1-3 breaks away from 3 li of T type grooves.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment rotary Automatic hook block switch circuit controller is further described.

The structure of the utility model comprises sleeve 2 and can in sleeve 2, slide and the tension axle 1 that rotates; Said tension axle 1 upper end is provided with helical pitch 1-1, following helical pitch 1-2, and the lower end is provided with T type fixture block 1-3, and upper and lower helical pitch is respectively equipped with the waveform spigot surface; Last waveform spigot surface has straight trough; Space between the waveform spigot surface of upper and lower helical pitch forms guide groove, and sleeve 2 radially is being provided with the guiding bearing pin 2-1 that can cooperate with guide groove, the T type groove 3 that the below of T type fixture block 1-3 and T type fixture block 1-3 are suitable.

Fig. 5 opens scheme drawing for the utility model, wherein: the last helical pitch of 1-1, the 1-1-1 straight trough, the last helical pitch of 1-1-2 inclined-plane, helical pitch under the 1-2, helical pitch inclined-plane under the 1-2-1, the 2-1 bearing pin that lead is put the position that A, B, C indicate the upper and lower relatively helical pitch of bearing pin that leads.

When initial position; Promptly lead the position of bearing pin 2-1 when A shown in Figure 5 position, and as shown in Figure 6, T type fixture block 1-3 is stuck in the T type groove 3; This moment, suspender relied on switch circuit controller to keep open state; Because guiding bearing pin 1-3 is positioned at straight trough 1-1-1, so tie rod 1 can't arbitrarily rotate, T type fixture block 1-3 can not break away from T type groove 3.

When needs clamp material, let tension axle 1 relative sleeve upwards slide, when guiding bearing pin 2-1 contacted with the inclined-plane 1-2-1 of following helical pitch 1-2, tension axle 1 rotated, and 2-1 is in B point position up to the guiding bearing pin.At this moment, let the relative sleeve of tension axle to lower slider again, when guiding bearing pin 2-1 contacts with the inclined-plane 1-1-2 of last helical pitch 1-1; Strain axle 1 and continue to rotate, 2-1 is in C point position up to the guiding bearing pin, and the relative initial condition 1 of tension axle has rotated 90 ° like this; T type fixture block 1-3 is half-twist also, and this moment, the length direction of T type fixture block 1-3 was consistent with the opening direction of T type groove 3, and T type fixture block 1-3 can break away from T type groove 3 smoothly; Suspender can be free closed, thereby pick up material.

When needs let tongs recover open state, repeat above-mentioned motion process, the state of T type fixture block 1-3 and T type groove will move to the said state of Fig. 6 by state shown in Figure 7 again.

Claims

1. rotary suspender switch circuit controller; It is characterized in that: its structure comprises sleeve (2) and can in sleeve (2), slide and the tension axle (1) that rotates; Said tension axle (1) upper end is provided with helical pitch (1-1), following helical pitch (1-2), and the lower end is provided with T type fixture block (1-3), and upper and lower helical pitch is respectively equipped with the waveform spigot surface; Last waveform spigot surface has straight trough; Space between the waveform spigot surface of upper and lower helical pitch forms guide groove, and sleeve (2) radially is being provided with the guiding bearing pin (2-1) that can cooperate with guide groove, and there is the T type groove (3) suitable with T type fixture block (1-3) below of T type fixture block (1-3).

2. by the described rotary suspender switch circuit controller of claim 1, it is characterized in that: the last helical pitch (1-1) on the said tension axle (1), following helical pitch (1-2) respectively have 4 waveform spigot surfaces, at a distance of 90 °, and rectangular distribution; 4 of straight troughs are arranged on the waveform spigot surface of last helical pitch (1-1), at a distance of 90 °, rectangular distribution.

3. by the described rotary suspender switch circuit controller of claim 1, it is characterized in that: said guiding bearing pin (2-1) has two, is symmetrical set.