CN215208308U - Rotary swing arm of forklift - Google Patents

Abstract

The utility model discloses a rotary swing arm of a forklift, which relates to the field of forklifts and comprises a swing arm mechanism, wherein the swing arm mechanism comprises a rotary component for controlling the rotation of a suspension arm of the forklift; fixed davit turned position's fixed subassembly to and cooperation rotating assembly is with drive davit pivoted oil circuit subassembly, the utility model discloses simple structure through addding the fork truck davit and driving davit pivoted swing arm rotating assembly, can realize the rotatory effect of davit, makes fork truck's working range more extensive, compares in prior art, the utility model discloses do not need the vehicle to make a round trip to rotate and just can accomplish the swing operation, make fork truck whole easy operation and functional strong.

Description

Rotary swing arm of forklift

Technical Field

The utility model relates to a fork truck field specifically is a rotatory swing arm of fork truck.

Background

The product is suitable for various fields of building construction, road construction, hoisting, stacking and the like. Before the product is not developed, the suspension arm product has no functions of the swing arm rotating assembly, the working state is single, and the universality is poor.

Want to realize among the prior art that the davit rotates and need wholly remove fork truck, take a lot of work and difficultly in the in-service use process, and reduced the efficiency of fork truck work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotatory swing arm of fork truck carries out rotatory oil circuit through addding the rotatory swing arm of fork truck and driving the swing arm to solve the problem that proposes among the above-mentioned background.

In order to achieve the above object, the utility model provides a following technical scheme:

a rotary swing arm of a forklift comprises a swing arm mechanism, wherein the swing arm mechanism comprises a rotary assembly for controlling a forklift suspension arm to rotate; the oil circuit component comprises a multi-way valve, a pipe coiling device and a left balance cylinder and a right balance cylinder which are sequentially connected through an oil pipe, and the left balance cylinder and the right balance cylinder are connected with the rotating component.

As a further aspect of the present invention: be equipped with the steel pipe elbow between reelpipe ware and the left and right sides balancing cylinder, the reelpipe ware is fixed on fork truck hoisting system right side, the multiport valve is connected to reelpipe ware lower extreme rubber tube, the steel pipe elbow is connected to reelpipe ware upper end rubber tube, the steel pipe elbow is fixed in the fork truck portal upper end.

As a further aspect of the present invention: the rotating assembly comprises a suspension arm and a rotary rod for driving the suspension arm to rotate, and an auxiliary rotary rod is fixedly connected to the outer side of the rotary rod and keeps a rotating roller bearing.

As a further aspect of the present invention: the fixed assembly comprises a brake band-type brake which is connected with the output ends of the left balance cylinder and the right balance cylinder and can go deep into the rotating assembly to control the rotating rod to rotate.

As a further aspect of the present invention: the left and right balance cylinders are connected with an inner gantry of the forklift through a bottom plate positioning mechanism, an oil cylinder support is arranged between the left and right balance cylinders and the bottom plate positioning mechanism, the left and right balance cylinders are flexibly connected with the oil cylinder support, and the output end of the left and right balance cylinders is fixedly connected with a brake.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses novel structure through addding the fork truck davit and driving davit pivoted swing arm rotating assembly, can realize the rotatory effect of davit, makes fork truck's working range more extensive, compares in prior art, the utility model discloses do not need the vehicle to make a round trip to rotate and just can accomplish the swing operation, make the whole easy operation of fork truck and functional strong.

Drawings

FIG. 1 is a schematic view of the overall structure of a rotary swing arm of a forklift;

FIG. 2 is a schematic perspective view of a rotary swing arm of a forklift;

FIG. 3 is a schematic diagram of a matching structure between a forklift balance cylinder and a swing arm mechanism;

FIG. 4 is a schematic diagram of the action principle of a forklift balance cylinder;

in the figure: 1-suspension arm, 2-forklift inner gantry, 3-pipe winder, 5-steel pipe elbow, 6-rotary swing arm mechanism, 7-bottom plate positioning mechanism, 8-oil cylinder support, 9-left and right balance cylinders, 10-brake band-type brake, 11-roller bearing and 12-rotary rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model provides an in, a rotatory swing arm of fork truck, fork truck are including the fork frame that drives the fork lift of fork truck to and portal 2 in the fork truck of control fork frame position, the fork truck fork is through its position removal of hydraulic cylinder control that links to each other with the multiple unit valve, the rotatory swing arm of fork truck includes swing arm mechanism, swing arm mechanism is including control davit pivoted rotating assembly, fixed davit pivoted position's fixed subassembly and drive rotating assembly's oil circuit subassembly, oil circuit subassembly includes through oil pipe consecutive multiple unit valve, reelpipe ware and control the balancing cylinder, control the balancing cylinder and link to each other with rotating assembly.

When the fork of the forklift rises, as shown in fig. 1-2, hydraulic oil in the multi-way valve is transmitted to the lifting oil cylinder through the rubber tube to drive the inner gantry to rise, meanwhile, the rubber tube of the pipe coiling device is driven to rise synchronously, and the fork frame is driven to rise through the chain. The utility model discloses in owing to add rotatory swing arm mechanism in portal upper end, consequently play to rise the corresponding shortening of stroke of hydro-cylinder for when the fork frame rises to the top, do not have the phenomenon of mutual interference with rotatory swing arm mechanism.

The multi-way valve is connected with three groups of pipelines, and the first group of pipelines controls the lifting part of the system; the second group pipeline accessible tilt cylinder control inclination wherein, the third group pipeline with control the balancing cylinder and link to each other, the braking band-type brake is connected to left and right balancing cylinder output, the braking band-type brake can play the braking action for control rotatory swing arm mechanism stop work. The left and right balance cylinders are fixed on the inner door frame of the forklift, the multi-way valve is connected with the left and right balance cylinders through rubber pipes of the pipe coiling device, and the moving direction of the output ends of the left and right balance cylinders can be controlled under the control action of the multi-way valve, so that the rotation and the fixation of the suspension arm are controlled.

The multi-way valve, the pipe coiling device and the left and right balance cylinders are sequentially connected through an oil pipe, a steel pipe elbow is arranged between the pipe coiling device and the left and right balance cylinders, the pipe coiling device is fixed on the right side of a hoisting system, a rubber pipe at the lower end of the pipe coiling device is connected with the multi-way valve, a rubber pipe at the upper end of the pipe coiling device is connected with the steel pipe elbow, the steel pipe elbow is fixed at the upper end of an inner gantry and rises along with the hoisting system, and the rubber pipe at the upper end of the pipe coiling device can rise and fall along with the inner gantry synchronously. The steel pipe elbow mainly plays a role in conversion and connection, the pipe coiling device is connected to the lower end of the steel pipe elbow and plays a role in connection and conversion, and the bottom plate positioning mechanisms of the left balance cylinder and the right balance cylinder are fixed to the upper cross beam of the inner gantry.

The rotating assembly comprises a suspension arm and a rotary rod for driving the suspension arm to rotate, and an auxiliary rotary rod is fixedly connected to the outer side of the rotary rod and keeps a rotating roller bearing. The fixed assembly comprises a left balance cylinder, a right balance cylinder and a band-type brake which is connected with the output end of the left balance cylinder and the output end of the right balance cylinder and can deeply penetrate into the rotating assembly to control the rotating rod to rotate.

It links to each other with interior portal through bottom plate positioning mechanism to control the balanced jar, it is equipped with the hydro-cylinder support to control between balanced jar and the bottom plate positioning mechanism, control balanced jar and hydro-cylinder support flexible and link to each other, control balanced jar output and brake fixed linking to each other, when the hydro-cylinder output stretches out, can play the constraint effect to the rotary rod, when the indentation of hydro-cylinder output, the rotary rod can remain throughout rotatory, rotary rod fixedly connected with davit can drive the relative fork rotation of davit.

As shown in fig. 4, in the actual working process of the forklift, the control lever controls the multi-way valve, when the control valve rod controls the open loop of the oil port at the upper end of the multi-way valve, hydraulic oil is transmitted to the f end of the pipe coiling device through the rubber pipe, and is transmitted to the d end at the f end to enter the inside of the oil cylinder, so that the retracting effect of the oil cylinder can be realized; when the control lever controls the oil port at the lower end of the multi-way valve to open the ring, hydraulic oil is transmitted to the e end of the pipe coiling device through the rubber pipe and is transmitted to the c end at the e end to enter the oil cylinder, and the extending effect of the oil cylinder can be realized. The position of the band-type brake relative to the rotating rod can be controlled through the stretching and retracting actions of the output end of the oil cylinder, so that the fixing and the rotating of the rotating rod are controlled.

The utility model discloses novel structure, the operation is stable, the utility model discloses when using, through addding the fork truck davit and driving davit pivoted swing arm rotating assembly, can realize the rotatory effect of davit, make fork truck's working range more extensive, compare in prior art, the utility model discloses do not need the vehicle to make a round trip to rotate and just can accomplish swing operation, make the whole easy operation of fork truck and functional strong.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a rotatory swing arm of fork truck, includes swing arm mechanism, its characterized in that, swing arm mechanism includes:

the rotating assembly controls the forklift suspension arm to rotate;

a fixing assembly for fixing the rotation position of the boom, and

the oil circuit component is matched with the rotating component to drive the suspension arm to rotate, and comprises a multi-way valve, a pipe coiling device and a left balance cylinder and a right balance cylinder which are sequentially connected through an oil pipe, wherein the left balance cylinder and the right balance cylinder are connected with the rotating component.

2. The rotary swing arm of forklift as recited in claim 1, wherein a steel pipe elbow is arranged between the pipe coiling device and the left and right balance cylinders, the pipe coiling device is fixed on the right side of the forklift lifting system, a multi-way valve is connected with a rubber pipe at the lower end of the pipe coiling device, a steel pipe elbow is connected with a rubber pipe at the upper end of the pipe coiling device, and the steel pipe elbow is fixed on the upper end of the forklift inner door frame.

3. The rotary swing arm of forklift as recited in claim 1, wherein the rotary assembly comprises a boom, a rotary rod driving the boom to rotate, and an auxiliary rotary rod is fixedly connected to the outer side of the rotary rod to maintain a rotary roller bearing.

4. The rotary swing arm of a forklift truck according to claim 3, wherein the fixed assembly comprises a brake band-type brake connected with the output ends of the left and right balance cylinders and capable of penetrating into the rotary assembly to control the rotary rod to rotate.

5. The rotary swing arm of a forklift as recited in claim 4, wherein the left and right balance cylinders are connected with the inner gantry of the forklift through the bottom plate positioning mechanism, the oil cylinder supports are arranged between the left and right balance cylinders and the bottom plate positioning mechanism, the left and right balance cylinders are flexibly connected with the oil cylinder supports, and the output ends of the left and right balance cylinders are fixedly connected with the brake.

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