CN209338000U - A kind of bridge crane counterweight limit device - Google Patents

Abstract

The utility model discloses a kind of bridge crane counterweight limit devices of crane technical field, including fixed plate, the bottom of the fixed plate is connected with the upper frame that Open Side Down, the bottom of the upper frame is plugged with the lower frame of opening upwards, the bottom of the lower frame is connected with lower roof plate, the inner cavity top of the upper frame is fixedly installed with weight switch, spring is uniformly installed between the upper frame and lower frame, the intracavity bottom of the lower frame is connected with the striking rod immediately below weight switch trigger, the left and right sides of the upper frame is connected with engaging lug block one, the utility model structure is simple, good limit effect, suitable for on bridge crane trolley and suspension hook limit, advantageously ensure that the safety of trolley and suspension hook operation, reduce the generation of failure, pass through U-shaped compression bar, it can be achieved to trolley The two sides of traffic direction limit, by mandril, it can be achieved that limit to suspension hook.

Description

A kind of bridge crane counterweight limit device

Technical field

The utility model relates to crane technical field, specially a kind of bridge crane counterweight limit device.

Background technique

In the prior art, bridge crane is indispensable as the important composition component in the fields such as power station, factory, safety Using the always most important thing, preventing the hook gear of bridge crane from rushing to summit is also a project that must be taken into consideration.It removes at present Other than protecting hook gear not rush to summit using height limitator, and limited in the small truck position of bridge crane provided with weight Device.But existing weight limiter is merely able to limit suspension hook, it can not left and right two to the trolley of bridge crane Side is limited, and the safety of trolley is reduced.

Such as Chinese Patent Application No. CN201820827903.0, a kind of particular content are as follows: bridge crane weight limit Device.It is being made at the scene, repeatedly used, using safe dedicated when for protecting bridge machine to run to upper limit Tool.It is made according to the pattern of each bridge machine.It is that Weight type switch is installed on OTC's trolley vantage point, it is right Weight type switch is answered to be mounted below the lance moved up and down, lance is mounted in spaced apart guide holder up and down, guide holder For a ring set, ring set both ends are bolted, and there is the convex edge for preventing falling off from guide holder in lance upper end.Lance lower end has Cross bar.Set weight limit rigid guide have passed through the application of more bridge cranes, show as sensitive reliable, structure Simply, easy for installation, layout does not take up space, can Reusability.More original mounting means, in-site installation is simple, beautiful and generous, Basic zero dimension shield.

This bridge crane counterweight limit device, although set weight limit rigid guide have passed through more overhead traveling cranes The application of machine, shows as sensitive reliable, and structure is simple, and easy for installation, layout does not take up space, can Reusability.It is more former Some mounting means, in-site installation is simple, beautiful and generous, basic zero dimension shield；Production is simple: by production figure carry out blanking, assembly, It welds, burnish and fabricate.Assembling parts are less, simple and reliable for structure, handsome in appearance generous.It is convenient for installation and maintenance: according to figure Paper installs simple and convenient, the basic zero dimension shield in scene at the scene.But this bridge crane counterweight limit device is merely able to hanging It is hooked into capable limit, the safety of trolley can not be reduced to being limited at left and right sides of the trolley of bridge crane, be based on This, the utility model devises a kind of bridge crane counterweight limit device, to solve the above problems.

Summary of the invention

The purpose of this utility model is to provide a kind of bridge crane counterweight limit devices, to solve above-mentioned background technique This bridge crane counterweight limit device of middle proposition is merely able to limit suspension hook, can not be to the small of bridge crane The problem of being limited at left and right sides of vehicle, reducing the safety of trolley.

To achieve the above object, the utility model provides the following technical solutions: a kind of bridge crane counterweight limit device, Including fixed plate, the bottom of the fixed plate is connected with the upper frame that Open Side Down, and the bottom of the upper frame is plugged with opening Upward lower frame, the bottom of the lower frame are connected with lower roof plate, and the inner cavity top of the upper frame is fixedly installed with weight Switch, is uniformly equipped with spring, the intracavity bottom of the lower frame is connected with positioned at weight between the upper frame and lower frame Striking rod immediately below switch trigger, the left and right sides of the upper frame are connected with engaging lug block one, the lower roof plate Bottom bilateral symmetry is connected with engaging lug block two, and the left and right engaging lug block one is hinged between left and right engaging lug block two respectively U-shaped compression bar, the opposite exterior lateral sides of U-shaped compression bar described in two groups are connected with fixed block, and the opposite exterior lateral sides of fixed block described in two groups are pacified Equipped with rolling wheel support, idler wheel is mounted on rolling wheel support described in two groups, the bottom center of the lower roof plate is connected with mandril.

Preferably, the mandril includes stock, and the bottom of the stock is connected with rotary table block, the bottom peace of the rotary table block Equipped with rubber cushion blocks.

Preferably, reinforcing rib is connected on the outside of the junction of the fixed plate and upper frame.

Preferably, the trolley bottom of the fixed plate and bridge crane is bolted.

Preferably, the U-shaped compression bar is uniformly coated with lubrication with the hinged place of engaging lug block one and engaging lug block two respectively Oil.

Preferably, the cross sectional shape of the fixed plate is circle.

Compared with prior art, the utility model has the beneficial effects that the utility model structure is simple, good limit effect, Suitable for on bridge crane trolley and suspension hook limit, advantageously ensure that trolley and suspension hook operation safety, The generation for reducing failure, it is by mandril, it can be achieved that right by U-shaped compression bar, it can be achieved that the two sides to trolley travelling direction limit The limit of suspension hook may make frame and lower frame not to compress in normal state by spring, can avoid striking rod collision weight Hammer switchs and influences the normal operation of bridge crane.

Detailed description of the invention

In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings Other attached drawings.

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model push rod structure schematic diagram.

In attached drawing, parts list represented by the reference numerals are as follows:

1- fixed plate, the upper frame of 2-, 3- lower frame, 4- lower roof plate, 5- weight switch, 6- spring, 7- striking rod, 8- connection Ear block one, 9- engaging lug block two, 10-U type compression bar, 11- fixed block, 12- rolling wheel support, 13- idler wheel, 14- mandril, 141- long Bar, 142- rotary table block, 143- rubber cushion blocks.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts All other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of a kind of bridge crane counterweight limit device technical solution: bridge-type referring to FIG. 1-2, Crane counterweight limit device, including fixed plate 1, the bottom of fixed plate 1 are connected with the upper frame 2 that Open Side Down, upper frame 2 Bottom is plugged with the lower frame 3 of opening upwards, and the bottom of lower frame 3 is connected with lower roof plate 4, and the inner cavity top of upper frame 2 is fixed Weight switch 5 is installed, spring 6 is uniformly installed between upper frame 2 and lower frame 3, the intracavity bottom of lower frame 3 is connected with position Striking rod 7 immediately below 5 trigger of weight switch, the left and right sides of upper frame 2 are connected with engaging lug block 1, lower roof plate 4 Bottom bilateral symmetry be connected with engaging lug block 29, left and right engaging lug block 1 is hinged between left and right engaging lug block 29 respectively There is U-shaped compression bar 10, the opposite exterior lateral sides of two groups of U-shaped compression bars 10 are connected with fixed block 11, and the opposite exterior lateral sides of two groups of fixed blocks 11 are equal Rolling wheel support 12 is installed, idler wheel 13 is mounted on two groups of rolling wheel supports 12, the bottom center of lower roof plate 4 is connected with mandril 14。

Further, mandril 14 includes stock 141, and the bottom of stock 141 is connected with rotary table block 142, the bottom of rotary table block 142 Portion is equipped with rubber cushion blocks 143；By rotary table block 142, contact area can be increased, by rubber cushion blocks 143, can be played certain Buffer function also can avoid rigid contact and generate noise.

Further, it is connected with reinforcing rib on the outside of the junction of fixed plate 1 and upper frame 2, so that fixed plate 1 and upper ledge The connection of frame 2 is stronger.

Further, fixed plate 1 and the trolley bottom of bridge crane are bolted, convenient to install to device And maintenance.

Further, U-shaped compression bar 10 is uniformly coated with profit with the hinged place of engaging lug block 1 and engaging lug block 29 respectively Lubricating oil, so that U-shaped compression bar 10 is in flexible rotating state always.

Further, the cross sectional shape of fixed plate 1 is circle；Be conducive to the installation of device.

One concrete application of the present embodiment are as follows: the utility model is a kind of bridge crane counterweight limit device, mainly Suitable for on bridge crane trolley and suspension hook limit, wherein weight switch 5 is existing equipment, this is practical new Type only carries out it using not doing in structure and improve.In use, fixed plate 1 is passed through fixing bolt and bridge crane Trolley bottom is fixedly connected, so that mandril 14 is located at the surface of suspension hook, when suspension hook rises ejection mandril 14, so that lower frame 3 Compressed spring 6, and striking rod 7 will also follow lower frame 3 to rise, and hit the trigger switch of weight switch 5, so that in suspension hook stopping It rises.When the trolley of bridge crane is moved to the limit plate of left or right, idler wheel 13 is contacted with limit plate, and is scrolled down through, So that U-shaped compression bar 10 is rotated around the hinged place of itself and engaging lug block 1, thus make U-shaped compression bar 10 top engaging lug block 29 upwards, To realize the compression of lower frame 3, so that striking rod 7 hits the trigger switch of weight switch weight switch 5, trolley stops at once It is mobile.

In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples In can be combined in any suitable manner.

The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this Utility model.The utility model is limited only by the claims and their full scope and equivalents.

Claims (6)

1. a kind of bridge crane counterweight limit device, including fixed plate (1), it is characterised in that: the bottom of the fixed plate (1) It is connected with the upper frame (2) that Open Side Down, the bottom of the upper frame (2) is plugged with the lower frame (3) of opening upwards, under described The bottom of frame (3) is connected with lower roof plate (4), and the inner cavity top of the upper frame (2) is fixedly installed with weight switch (5), institute It states and is uniformly equipped between frame (2) and lower frame (3) spring (6), the intracavity bottom of the lower frame (3), which is connected with, to be located at Weight switchs the striking rod (7) immediately below (5) trigger, and the left and right sides of the upper frame (2) is connected with engaging lug block one (8), the bottom bilateral symmetry of the lower roof plate (4) is connected with engaging lug block two (9), and the left and right engaging lug block one (8) is respectively U-shaped compression bar (10) are hinged between left and right engaging lug block two (9), the opposite exterior lateral sides of U-shaped compression bar (10) described in two groups are affixed Have fixed block (11), the opposite exterior lateral sides of fixed block described in two groups (11) are mounted on rolling wheel support (12), idler wheel branch described in two groups It is mounted on frame (12) idler wheel (13), the bottom center of the lower roof plate (4) is connected with mandril (14).

2. a kind of bridge crane counterweight limit device according to claim 1, it is characterised in that: mandril (14) packet It includes stock (141), the bottom of the stock (141) is connected with rotary table block (142), and the bottom of the rotary table block (142) is equipped with Rubber cushion blocks (143).

3. a kind of bridge crane counterweight limit device according to claim 1, it is characterised in that: the fixed plate (1) Reinforcing rib is connected with on the outside of the junction of upper frame (2).

4. a kind of bridge crane counterweight limit device according to claim 1, it is characterised in that: the fixed plate (1) It is bolted with the trolley bottom of bridge crane.

5. a kind of bridge crane counterweight limit device according to claim 1, it is characterised in that: the U-shaped compression bar (10) hinged place respectively with engaging lug block one (8) and engaging lug block two (9) is uniformly coated with lubricating oil.

6. a kind of bridge crane counterweight limit device according to claim 1, it is characterised in that: the fixed plate (1) Cross sectional shape be circle.