CN217676689U

CN217676689U - Fork truck crotch rotary mechanism

Info

Publication number: CN217676689U
Application number: CN202221800178.0U
Authority: CN
Inventors: 吴鹏; 俞雪龙; 丁喜逢; 董旭东
Original assignee: Zhejiang Youen Intelligent Technology Co ltd
Current assignee: Zhejiang Youen Intelligent Technology Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-10-28
Anticipated expiration: 2032-07-13

Abstract

The utility model relates to the technical field of forklifts, in particular to a fork frame rotating mechanism of a forklift, wherein a longitudinal arm of a fork frame is arranged on a mounting frame and can rotate around a first rotating axis, and the rotating axis of the first rotating axis is parallel to the width direction of the mounting frame; the rotating mechanism comprises two overturning arms and a driving part which are respectively arranged on two sides of the two longitudinal arms, the overturning arms are arranged on the mounting frame and are driven by the driving part to overturn around a second rotating axis, each overturning arm comprises a stress end and a driving end, the driving ends are linked with the longitudinal arms, the stress ends are connected with the driving part, and when the driving part drives the stress ends to overturn downwards, the driving ends drive the longitudinal arms to overturn upwards. When the fork arm supports and carries goods in a downhill, the stressed end can be turned downwards, and at the moment, the driving end can turn over the longitudinal arm upwards to lift an angle, so that the goods supported and carried on the cross arm have the tendency of sliding towards one side close to the mounting frame, and the goods are not easy to slide out from the front end of the cross arm in the downhill.

Description

Fork truck crotch rotary mechanism

Technical Field

The utility model relates to a fork truck technical field, concretely relates to fork truck crotch rotary mechanism.

Background

The forklift is a common goods handling device, which is widely used in various industries and mainly comprises a fork frame with a fork arm and a lifting mechanism for driving the fork frame to lift.

Therefore, the conventional forklift mainly depends on the fork arms of the fork frames to support goods to be transported when carrying goods, however, when the forklift is actually applied, when the fork arms support the goods to be carried on a downhill, the fork arms can be enabled to be in a front-end low and rear-end high-inclination state, so that the goods carried on the fork arms can easily slide down along the inclined fork arms, and therefore, a rotating mechanism needs to be designed to drive the fork arms to overturn and avoid the situation that the goods of the forklift slide down forwards from the fork arms when the forklift is in the downhill.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical problem mentioned in the background art, the utility model aims to provide a fork truck crotch rotary mechanism.

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

a forklift fork frame rotating mechanism is disclosed, wherein a fork frame comprises a mounting frame and two fork arms, the mounting frame is used for mounting on a forklift lifting mechanism, the two fork arms are mounted on the mounting frame, each fork arm comprises a longitudinal arm and a transverse arm which are connected, each longitudinal arm is arranged on the mounting frame and can rotate around a first rotating axis, and the rotating axis of the first rotating axis is parallel to the width direction of the mounting frame; the rotating mechanism comprises two overturning arms and a driving part which are respectively arranged on two sides of the two longitudinal arms, the overturning arms are arranged on the mounting frame and are driven by the driving part to overturn around a second rotating axis, wherein the first rotating axis is parallel to the second rotating axis, the overturning arms comprise stress ends and driving ends, the second rotating axis is located between the stress ends and the driving ends, the driving ends are linked with the longitudinal arms, the stress ends are connected with the driving part, and when the stress ends are driven by the driving part to overturn downwards, the driving ends drive the longitudinal arms to overturn upwards.

Compare prior art, the advantage of this scheme of adoption lies in:

in this scheme, the longitudinal arm with the yoke rotates with the mounting bracket to be connected, and set up the upset arm by the upset of driver part drive on the mounting bracket, so the upset arm is equivalent to a lever mechanism who uses the second axis of rotation as rotation center, so when the yoke holds in the palm carries goods downhill path, can act on the atress end of upset arm through driver part so that the atress end upset downwards, the drive end of upset arm then can corresponding upwards upset this moment, thereby lift up an angle with the longitudinal arm upwards upset, thereby make the goods of holding in the palm on the xarm of carrying have to being close to the gliding trend in mounting bracket one side, thereby when the downhill path, the goods is difficult to follow the front end roll-off of xarm.

Preferably, the driving end comprises a guide rod, a guide groove extending along the length direction of the trailing arm is formed in the side wall of the trailing arm close to one side of the turnover arm, at least part of the guide rod is inserted into the guide groove, and the part of the guide rod inserted into the guide groove can move in the guide groove.

Preferably, the guide rod is provided with a guide wheel which is rotatably arranged, and the guide wheel is arranged in the guide groove.

Preferably, the dorsal part of mounting bracket is located to driver part, set up the mouth of dodging that runs through the mounting bracket on the mounting bracket, the upset arm rotates and sets up in dodging the mouth, and wherein the dorsal part that the atress end of upset arm extended the mounting bracket is connected with driver part.

Preferably, the force bearing ends of the two turnover arms are connected with a driving part, and the two turnover arms are driven by the driving part to turn over in the same direction.

Preferably, the driving part comprises a power telescopic piece and a connecting rod which are arranged on the back side of the mounting frame, the stress ends of the turnover arms are fixed with the connecting rod, one end of the power telescopic piece is hinged with the mounting frame, and the other end of the power telescopic piece is hinged with the connecting rod.

Preferably, the power expansion piece is one of a hydraulic cylinder, an air cylinder or an electric cylinder.

Other advantages and effects of the present invention are specifically described in the detailed description of the preferred embodiments.

Drawings

FIG. 1 is a schematic structural view of the front side of a mounting bracket;

FIG. 2 is a schematic view of the backside of the mounting frame;

FIG. 3 is a schematic structural view of the flip arm and the trailing arm in a detached state;

FIG. 4 is a schematic structural view of the invert arm in an initial state;

fig. 5 is a schematic structural view of the turning arm in a turned-up state.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, 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.

Referring to fig. 1-5, in order to better understand the present embodiment, the structure of the fork is first briefly described, where the fork includes a mounting frame 1 and two fork arms 2 mounted on the mounting frame 1, in an assembled state, the mounting frame 1 is mounted on a lifting mechanism (not shown in the figure) of the forklift, and the lifting mechanism drives the mounting frame 1 to lift in a vertical direction, where the lifting mechanism may be a screw structure, a chain and sprocket structure, and the like.

As shown in fig. 1, the fork arm 2 comprises a longitudinal arm 21 and a transverse arm 22 which are connected, the longitudinal arm 21 is connected with the end part of the transverse arm 22 to form an L-shaped structure, when in use, the transverse arm 22 is mainly used for forking up goods and carrying the goods, and the longitudinal arm 21 is arranged on the mounting frame 1.

In order to cooperate with the rotating mechanism, in the present embodiment, as shown in fig. 1, the trailing arm 21 is rotatably connected to the mounting bracket 1, so that the trailing arm 21 rotates on the mounting bracket 1 around a first rotation axis L1, where the first rotation axis L1 is parallel to the width direction of the mounting bracket 1; specifically, in the present embodiment, as shown in fig. 3, the upper end of the trailing arm 21 is mounted on the mounting bracket 1 through the hinge base 212, so that the trailing arm 21 can be turned relative to the mounting bracket 1.

Referring to fig. 1 and 3, the rotating mechanism includes two turning arms 3 and a driving part respectively disposed at two sides of two trailing arms 21, in other words, one turning arm 3 is disposed at an outer side of each trailing arm 21.

The overturning arm 3 is arranged on the mounting frame 1 and driven by a driving part to overturn around a second rotating axis L2, wherein the first rotating axis L1 is parallel to the second rotating axis L2.

As shown in fig. 3, the flipping arm 3 includes a force-bearing end 31 and a driving end 32, and the second rotation axis L2 is located between the force-bearing end 31 and the driving end 32, so that the flipping arm 3 is equivalent to a lever structure with the second rotation axis L2 as a rotation center; the driving end 32 is linked with the trailing arm 21, the stressed end 31 is connected with the driving part, when the driving part drives the stressed end 31 to turn downwards, the driving end 32 drives the trailing arm 21 to turn upwards, and when the driving part drives the stressed end 31 to turn upwards, the driving end 32 turns downwards, and at the moment, the trailing arm 21 turns downwards.

With the arrangement, when goods need to be forked, the overturning arm 3 can be driven by the driving part to an initial state, as shown in fig. 4, wherein in the initial state, the transverse arm 22 is approximately parallel to the ground, and the longitudinal arm 21 is approximately parallel to the side wall of the mounting frame 1; when the fork arm 2 is required to be used for supporting goods to travel on a downhill section, the driving part can be used for driving the overturning arm 3 to overturn, specifically, the driving part acts on the stressed end 31 of the overturning arm 3 to overturn the stressed end 31 downwards, and at the moment, the driving end 32 of the overturning arm 3 correspondingly overturns upwards, so that the longitudinal arm 21 is overturned upwards to lift up an angle, and referring to the state shown in fig. 5, the transverse arm 22 is in an inclined state with a high front end and a low rear end, so that the goods supported on the transverse arm 22 has a tendency of sliding towards one side close to the mounting rack 1, and the goods are not easy to slide out from the front end of the transverse arm 22 in a downhill.

In order to realize the linkage between the driving end 32 and the trailing arm 21, so as to enable the trailing arm 21 to realize the above-mentioned turning action, in this embodiment, as shown in fig. 3, the driving end 32 includes a guide rod 321, a guide groove 211 extending along the length direction of the trailing arm 21 is formed on the side wall of the trailing arm 21 close to the turning arm 3, the guide rod 321 is at least partially inserted into the guide groove 211, the specific guide rod 321 is arranged parallel to the first rotation axis L1, one end of the guide rod 321 far from the turning arm 3 is inserted into the guide groove 211, and the portion of the guide rod 321 inserted into the guide groove 211 is movable in the guide groove 211, so that when the driving end 32 is turned upwards, the guide rod 321 is turned upwards in the guide groove 211, at this time, the guide rod 321 moves in the guide groove 211 and pushes the groove wall of the guide groove 211 far from the mounting bracket 1 upwards, and under the pushing of the guide rod 321, the trailing arm 21 is turned upwards, and the state shown in fig. 5 is presented.

In the above embodiment, in the pushing process, the guide rod 321 needs to abut against the groove wall of the guide groove 211 to slide, and in this process, there is a large frictional resistance between the guide rod 321 and the guide groove 211, so as to further improve this embodiment, as shown in fig. 3, the guide wheel 322 is rotatably disposed on the guide rod 321, and the guide wheel 322 is disposed in the guide groove 211 and can roll in the guide groove 211.

In this embodiment, for convenience of description, one side of the mounting bracket 1 close to the yoke 2 is referred to as a front side, whereas one side of the mounting bracket 1 away from the yoke 2 is referred to as a back side, in an actual application process, since the yoke 2 is located on the front side of the mounting bracket 1, when goods are transported, the goods are located on the front side of the mounting bracket 1; and the driving part will occupy a certain space, if it is installed on the front side of the installation frame 1, it will interfere with the fork arm 2 to carry the goods, so in this embodiment, as shown in fig. 2, the driving part is installed on the back side of the installation frame 1, an avoiding opening 11 penetrating through the installation frame 1 is provided on the installation frame 1, the avoiding opening 11 is provided to ensure that the flip arm 3 can normally flip, the flip arm 3 is rotatably installed in the avoiding opening 11, specifically, as shown in fig. 3, a rotating shaft 111 is provided in the avoiding opening 11, the flip arm 3 is rotatably installed on the rotating shaft 111, the driving end 32 of the flip arm 3 extends to the front side of the installation frame 1, and the stressed end 31 of the flip arm 3 extends the back side of the installation frame 1 and is connected with the driving part.

In order to simultaneously drive the two turning arms 3 to synchronously move, in this embodiment, as shown in fig. 2, the stressed ends 31 of the two turning arms 3 are both connected with the driving component, and the two turning arms 3 are simultaneously driven by the driving component to turn in the same direction, specifically:

as shown in fig. 2, the driving component includes a power expansion piece and a connecting rod 42, which are disposed on the back side of the mounting frame 1, in this embodiment, a hydraulic cylinder 41 is used as the power expansion piece, but in other alternative embodiments, the power expansion piece may also be a component that can expand and contract, such as an air cylinder or an electric cylinder, and is not limited in this respect.

The connecting rod 42 is horizontally arranged, the stress ends 31 of the two overturning arms 3 are fixed to the connecting rod 42, so that the two stress ends 31 can be driven to move through the connecting rod 42, one end of the hydraulic cylinder 41 is hinged to the mounting frame 1, the other end of the hydraulic cylinder is hinged to the connecting rod 42, when the hydraulic cylinder 41 extends, the connecting rod 42 can be pushed to overturn downwards, the connecting rod 42 can drive the stress ends 31 of the two overturning arms 3 to overturn downwards simultaneously, and the driving ends 32 of the two overturning arms 3 can overturn upwards at the same time to drive the two longitudinal arms 21 to overturn upwards.

It can be seen that, in the above manner, the synchronous action of the two tilting arms 3 can be realized by only one hydraulic cylinder 41, and there is no need to provide one hydraulic cylinder 41 for each tilting arm 3.

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.

Claims

1. A forklift fork frame rotating mechanism is disclosed, wherein a fork frame comprises a mounting frame and two fork arms, the mounting frame is used for mounting on a forklift lifting mechanism, the two fork arms are mounted on the mounting frame, and each fork arm comprises a longitudinal arm and a transverse arm which are connected; the rotating mechanism comprises two overturning arms and a driving part which are respectively arranged on two sides of two longitudinal arms, the overturning arms are arranged on the mounting frame and are driven by the driving part to overturn around a second rotating axis, wherein the first rotating axis is parallel to the second rotating axis, each overturning arm comprises a stress end and a driving end, the second rotating axis is located between the stress end and the driving end, the driving end is linked with the longitudinal arms, the stress end is connected with the driving part, and when the driving part drives the stress end to overturn downwards, the driving end drives the longitudinal arms to overturn upwards.

2. The fork carriage rotating mechanism of a forklift truck as claimed in claim 1, wherein the driving end comprises a guide rod, a guide groove extending along the length direction of the trailing arm is formed on the side wall of the trailing arm close to the turnover arm, the guide rod is at least partially inserted into the guide groove, and the part of the guide rod inserted into the guide groove can move in the guide groove.

3. The fork carriage rotating mechanism of a forklift truck as claimed in claim 2, wherein the guide bar is provided with a rotatably arranged guide wheel, and the guide wheel is arranged in the guide groove.

4. The fork carriage rotating mechanism of a forklift truck as claimed in claim 1, wherein the driving member is disposed on a back side of the mounting frame, the mounting frame is provided with an avoiding opening extending through the mounting frame, the flipper arm is rotatably disposed in the avoiding opening, and a force bearing end of the flipper arm extends the back side of the mounting frame and is connected with the driving member.

5. The fork carriage rotating mechanism of claim 4, wherein the force bearing ends of the two turnover arms are connected with a driving part, and the two turnover arms are driven by the driving part to turn in the same direction.

6. The fork rotating mechanism of the forklift as claimed in claim 5, wherein the driving part comprises a power expansion part and a connecting rod which are arranged on the back side of the mounting rack, the force bearing ends of the two turnover arms are fixed with the connecting rod, one end of the power expansion part is hinged with the mounting rack, and the other end of the power expansion part is hinged with the connecting rod.

7. A forklift fork rotation mechanism as claimed in claim 6, wherein the powered telescopic member is one of a hydraulic cylinder, an air cylinder or an electric cylinder.