CN201825667U

CN201825667U - Outdoor crane tilting prevention safety device

Info

Publication number: CN201825667U
Application number: CN2010205712387U
Authority: CN
Inventors: 田锡生; 张弩
Original assignee: Jiangsu Wode Crane Co Ltd
Current assignee: Jiangsu Wode Crane Co Ltd
Priority date: 2010-10-22
Filing date: 2010-10-22
Publication date: 2011-05-11
Anticipated expiration: 2020-10-22

Abstract

The utility model discloses an outdoor crane tilting prevention safety device, comprising connection brackets, a pin shaft I, a pair of clamps and a clamp opening and closing mechanism, wherein the connection brackets are respectively arranged below a lower transverse beam of a crane, and the upper ends of the connection brackets are fixedly connected with the lower transverse beams of a crane; the pair of clamps are arranged inside the connection bracket, the pin shaft I is respectively and movably connected with the lower end of the connection brackets and the upper ends of the pair of clamps; one end of the pin shaft I is positioned through a fastener, a sleeve gasket is arranged between the clamps and sheathed on the pin shaft I, and two ends of the sleeve gasket abuts against the inner sides of the clamps respectively; notches at the lower ends of the clamps are oppositely positioned at two sides of the upper end of a crane track; and the clamp opening and closing mechanism is arranged in the middle of the clamps and comprises a pin shaft II, a compression spring and a handle mechanism. The outdoor crane tilting prevention safety device is simple in structure and good in safety, and a crane does not automatically slide due to the influence of external factors such as wind force and the like.

Description

The anti-tipping safety device of outdoor hoisting crane

Technical field

The utility model relates to a kind of wind resistance anti-skid device of outdoor hoisting crane, and especially a kind of manual folder rail prevents the safety device that outdoor hoisting crane is tumbled, and belongs to the weight-lifting equipment technical field.

Background technology

The hoisting crane of outside work should be installed failure-free wind resistance anti-skid device, and should satisfy the mode of operation and the off working state wind resistance skid-resistance requirements of regulation.The wind resistance anti-skid device of large-sized gantry crane is selected the electric hydraulic rail clamping device usually for use, middle-size and small-size outdoor hoisting crane adopts drg, rim brake, rail clamping device, top rail machine, rail pressing device and rail safety gear etc. mostly, these devices can play dynamic anti-tipping effect under the outdoor crane operating status and the auxiliary anti-tipping effect under the off working state, but complex structure, the Installation and Debugging difficulty, the cost height, usually need to increase auxiliary anti-tilting apparatus such as anchoring device, windproof drag-line, iron wedge etc., guarantee the safety of outdoor hoisting crane.

The utility model content

The purpose of this utility model provide a kind of simple in structure, safety good, maintenance outdoor easily hoisting crane anti-tipping safety device.

The utility model is achieved by the following technical programs:

The anti-tipping safety device of a kind of outdoor hoisting crane comprises connecting support, bearing pin I, a pair of clamp, clamp open-and-close mechanism that described connection support is separately positioned on hoisting crane cross sill below, connects the support upper end and captives joint with the hoisting crane cross sill; Described a pair of clamp is arranged on and connects in the support, described bearing pin I be connected support lower end, a pair of clamp upper end and flexibly connect, bearing pin I one end is located by fastener, also be provided with spacer between the clamp, described spacer is sleeved on the bearing pin I, the spacer two ends are resisted against a pair of clamp inboard respectively, and described a pair of clamp lower end recess is located opposite from both sides, crane track upper end; Described clamp open-and-close mechanism is arranged on a pair of clamp middle part.

The purpose of this utility model can also further realize by following technical measures.

The anti-tipping safety device of aforesaid outdoor hoisting crane, wherein said clamp open-and-close mechanism comprises bearing pin II, stage clip, handle mechanism, described bearing pin II is passed a pair of clamp, flexibly connect with clamp, bearing pin II one end is spacing by the positive stop lug boss in the clamp outside, and the bearing pin II other end and described handle mechanism screw; The a pair of clamp outside is resisted against respectively on handle mechanism one side and the bearing pin II end face step, and described compression spring sleeve is contained on the bearing pin II between two clamps.

The anti-tipping safety device of aforesaid outdoor hoisting crane, wherein handle mechanism comprises handwheel, nut, and described nut screws on the bearing pin II, and nut one end is captiveed joint with described handwheel one end endoporus, and the nut other end is resisted against the opposite side clamp outside.

The utility model is simple in structure, and cost is low, and installation and maintenance are convenient; When outdoor hoisting crane off working state, the forward rotation handwheel, it is close relatively that a pair of clamp overcomes the elastic force of stage clip, clamp the rail upper end relatively up to two clamp lower end recesses, at this moment, under the clamping friction force effect between clamp and the rail, outdoor hoisting crane can not slide automatically because of the influence of external factors such as wind-force, and safety is good.When outdoor hoisting crane is worked, the backward rotation handwheel, under the effect of stage clip restoring force, two clamps separate relatively, and clamp lower end recess unclamps and breaks away from the rail upper end, and outdoor crane large vehicle walking device recovers normal operation.

Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.

Description of drawings

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

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

As shown in Figure 1, the utility model is applicable to middle-size and small-size outdoor hoisting crane, the left clamp 3, right clamp 4, the clamp open-and-close mechanism 5 that comprise two connection supports 1, bearing pin I 2, a pair of clamp, connect support 1 upper end and be welded on hoisting crane cross sill 6 belows, the left clamp 3 of a pair of clamp, right clamp 4 are arranged on and connect in the support 1.Bearing pin I 2 is passed and is connected support 1 lower end and left clamp 3, right clamp 4 upper ends, is positioned to connect in the support 1 lower end endoporus.A left side clamp 3, right clamp 4 upper ends can be along bearing pin I 2 slide relative, bearing pin I 2 one ends by spring cotter 21 spacing.Also be provided with spacer 7 between a left side clamp 3, the right clamp 4, spacer 7 is sleeved on the bearing pin I 2, is used for left clamp 3, right clamp 4 spacingly, and it is more reliable that two clamps are clamped.Left side clamp 3, right clamp 4 upper ends are resisted against spacer 7 two ends respectively, and left clamp 3, right clamp 4 lower end recesses are located opposite from both sides, crane track 9 upper end.

Clamp open-and-close mechanism 5 is arranged on two clamps middle part, comprises bearing pin II 51, stage clip 52, handle mechanism 53, and bearing pin II 51 is passed left clamp 3, right clamp 4 from left to right successively, flexibly connects with left clamp 3, right clamp 4.Left side clamp 3, right clamp 4 can horizontally slip along bearing pin II 51, bearing pin II 51 left ends are spacing by the positive stop lug boss 8 in left clamp 3 outsides, can prevent that bearing pin II 51 from rotating, bearing pin II 51 right-hand members and handle mechanism 53 screw, left side clamp 3, right clamp 4 outsides are resisted against on the bearing pin II 51 end face steps respectively and handle mechanism 53 inboards, stage clip 52 is sleeved on the bearing pin II 51, and stage clip 52 two ends are resisted against left clamp 3, right clamp 4 inboards respectively.Handle mechanism 53 comprises handwheel 531, nut 532, and nut 532 screws on bearing pin II 51, and nut 532 right-hand members are welded on outside the handwheel 531 left end endoporus, and nut 532 left ends are resisted against right clamp 4 outsides.

When outdoor hoisting crane is in off working state, forward rotation handwheel 531, it is close relatively that a left side clamp 3, right clamp 4 overcome the elastic force of stage clip 52, be resisted against spacer 7 both sides up to two clamps upper end, at this moment, the lower end recess of a pair of clamp clamps rail 9 upper ends, and under the clamping friction force effect between a pair of clamp lower end recess and the rail 9, outdoor hoisting crane can not slide automatically because of the influence of external factors such as wind-force.When hoisting crane needs work, backward rotation handwheel 531, under stage clip 52 restoring force effects, a pair of clamp lower end recess separates relatively, the clamp upper end breaks away from spacer 7 both sides, and a pair of clamp lower end breaks away from rail 9, and left clamp 3, right clamp 4 lower end recesses and 9 liang of side clearances of rail are even, can not produce additional cart operation side force, hoisting crane recovers normal operation.

In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.

Claims

1. anti-tipping safety device of outdoor hoisting crane, it is characterized in that: comprise connecting support, bearing pin I, a pair of clamp, clamp open-and-close mechanism, described connection support is separately positioned on hoisting crane cross sill below, connects the support upper end and captives joint with the hoisting crane cross sill; Described a pair of clamp is arranged on and connects in the support, described bearing pin I be connected support lower end, a pair of clamp upper end and flexibly connect, bearing pin I one end is located by fastener, also be provided with spacer between the clamp, described spacer is sleeved on the bearing pin I, the spacer two ends are resisted against a pair of clamp inboard respectively, and described a pair of clamp lower end recess is located opposite from both sides, crane track upper end; Described clamp open-and-close mechanism is arranged on a pair of clamp middle part.

2. the anti-tipping safety device of outdoor hoisting crane as claimed in claim 1, it is characterized in that: described clamp open-and-close mechanism comprises bearing pin II, stage clip, handle mechanism, described bearing pin II is passed a pair of clamp, flexibly connect with clamp, bearing pin II one end is spacing by the positive stop lug boss in the clamp outside, and the bearing pin II other end and described handle mechanism screw; The a pair of clamp outside is resisted against respectively on handle mechanism one side and the bearing pin II end face step, and described compression spring sleeve is contained on the bearing pin II between two clamps.

3. the anti-tipping safety device of outdoor hoisting crane as claimed in claim 2, it is characterized in that: described handle mechanism comprises handwheel, nut, described nut screws on the bearing pin II, and nut one end is captiveed joint with described handwheel one end endoporus, and the nut other end is resisted against the opposite side clamp outside.