阅读说明：本技术 三向叉车电叉头 (Three-way forklift electric fork head ) 是由 陈奎锋 吕维林 潘小军 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种三向叉车电叉头,包括货叉、侧移总成和旋转总成,侧移总成包括侧移轴、侧移执行轮和侧移电机；侧移执行轮固定在侧移轴上、且与设置在三向叉车内滑架上的侧移带配合,侧移轴通过轴承连接机箱、其还通过侧移传动机构连接侧移电机；机箱的后座安装有侧移机械限位部件,侧移机械限位部件与设置在三向叉车内滑架上的抵接部配合；旋转总成包括旋转轴和旋转电机；旋转轴通过轴承连接机箱；旋转轴的近段通过旋转传动机构连接旋转电机、其中段连接货叉、其远段连接旋转机械限位部件。本发明的三向叉车电叉头,能够降低货叉在侧移和旋转时的能量消耗、降低噪音、提高效率,提高叉车的续航能力和控制精度,结构及线路设计更简单,运行更稳定。(The invention discloses an electric fork head of a three-way forklift, which comprises a pallet fork, a side shift assembly and a rotation assembly, wherein the side shift assembly comprises a side shift shaft, a side shift actuating wheel and a side shift motor; the side shifting execution wheel is fixed on the side shifting shaft and matched with a side shifting belt arranged on an inner carriage of the three-way forklift, and the side shifting shaft is connected with the chassis through a bearing and is also connected with a side shifting motor through a side shifting transmission mechanism; a rear seat of the case is provided with a lateral movement mechanical limiting component which is matched with a butting part arranged on a sliding frame in the three-way forklift; the rotating assembly comprises a rotating shaft and a rotating motor; the rotating shaft is connected with the case through a bearing; the near section of the rotating shaft is connected with a rotating motor through a rotating transmission mechanism, the middle section of the rotating shaft is connected with a pallet fork, and the far section of the rotating shaft is connected with a rotating mechanical limiting part. The three-way forklift electric fork head disclosed by the invention can reduce the energy consumption of a fork during lateral movement and rotation, reduce noise, improve efficiency and improve the cruising ability and control precision of the forklift, and is simpler in structure and circuit design and more stable in operation.)

1. The utility model provides a three-dimensional fork truck electric fork head, includes fork, side and moves assembly and rotatory assembly, the fork is connected on rotatory assembly, rotatory assembly is connected on the side moves assembly, its characterized in that:

The side shift assembly comprises a side shift shaft, a side shift execution wheel and a side shift motor; the lateral shifting execution wheel is fixed on the lateral shifting shaft and is matched with a lateral shifting belt arranged on an inner carriage of the three-way forklift; the side shift shaft is connected with the case through a bearing, the middle section of the side shift shaft is connected with a side shift transmission mechanism, and the power input end of the side shift transmission mechanism is connected with the side shift motor; the side shifting transmission mechanism and the side shifting motor are both arranged in the case; a rear seat of the case is provided with a lateral movement mechanical limiting component which is matched with a butting part arranged on an inner sliding frame of the three-way forklift;

The rotating assembly comprises a rotating shaft and a rotating motor; the rotating shaft is arranged parallel to the side shifting shaft and is connected with the case through a bearing; the near section of the rotating shaft is connected with a rotating transmission mechanism, the power input end of the rotating transmission mechanism is connected with the rotating motor, and the rotating transmission mechanism and the rotating motor are both arranged in the case; the middle section of the rotating shaft is connected with the pallet fork; the far-end section of the rotating shaft is connected with a rotating mechanical limiting component, and the rotating mechanical limiting component supports and limits the rotating shaft when the rotating shaft stops rotating.

2. The three-way forklift electrical fork of claim 1, wherein: the rotary mechanical limiting component comprises a rotary table and a top shaft, the rotary table is assembled on a rotary shaft, and two groups of limiting notches are symmetrically arranged on the rotary table by taking the rotary shaft as a center; the apical axis supports on the foot rest of quick-witted case, and can remove along the direction of perpendicular to rotation axis, the tip of apical axis is equipped with mechanical stopper, the apical axis overcoat is equipped with the spring, quick-witted case foot rest is connected at the both ends of spring, spring application of force makes mechanical stopper screens in the apical axis be in the spacing breach when the rotation axis rotation stops.

3. the electric fork of a three-way forklift truck of claim 1 or 2, wherein: two groups of side shifting execution wheels are fixed on the side shifting shaft and are respectively arranged at two sides of the middle section of the side shifting shaft.

4. The electric fork of a three-way forklift truck of claim 1 or 2, wherein: the side shift execution wheel is a side shift gear, the side shift gear is meshed with a rack arranged on a carriage in the three-way forklift, and the side shift gear is meshed with the rack to convert the rotation of the side shift gear into the linear movement of the side shift gear along the rack.

5. The electric fork of a three-way forklift truck of claim 1 or 2, wherein: the side shift transmission mechanism is a gear transmission mechanism and comprises a side shift output gear, a first transition gear and a second transition gear, the side shift output gear is connected with a side shift motor, the first transition gear is connected with the case through a bearing and meshed with the side shift output gear, and the second transition gear is fixed in the middle section of the side shift shaft and meshed with the first transition gear.

6. The three-way forklift electrical fork of claim 5, wherein: the side shift assembly further comprises a side shift monitor, the side shift monitor comprises a side shift feedback gear and a first potentiometer, the side shift feedback gear is connected with the case through a bearing and meshed with the side shift output gear, and the first potentiometer is fixed on the side shift feedback gear.

7. the three-way forklift electrical fork of claim 5, wherein: the side shifting motor is provided with an electromagnetic brake and outputs power to the side shifting output gear through a speed reducer; the side shift motor is connected with a side shift controller which operates according to a side shift signal of the side shift controller.

8. the electric fork of a three-way forklift truck of claim 1 or 2, wherein: the rotary transmission mechanism is a gear transmission mechanism and comprises a rotary gear, a duplicate gear and a rotary output gear, the rotary gear is fixed on the rotary shaft, the duplicate gear is connected with the case through a bearing, a first tooth part of the duplicate gear is meshed with the rotary gear, a second tooth part of the duplicate gear is meshed with the rotary output gear, and the rotary output gear is connected with a rotary motor.

9. The three-way forklift electrical fork of claim 8, wherein: the rotating assembly further comprises a rotating monitor, and the rotating monitor comprises a second potentiometer fixed on the rotating shaft.

10. The three-way forklift electrical fork of claim 8, wherein: the rotating motor is provided with an electromagnetic brake and outputs power to the rotating output gear through a second speed reducer; the rotating motor is connected with a rotating controller and operates according to a rotating signal of the rotating controller.

Technical Field

The invention relates to the technical field of forklifts, in particular to an electric fork head of a three-way forklift.

Background

In recent years, with the rise of the logistics industry, a three-way stacking forklift is intensively researched by various large forklift host factories, the position of a forklift body in a stacking roadway is unchanged, and a fork head independently laterally moves and rotates to drive a pallet fork to stack or unstack. The existing mainstream three-way stacking forklift is provided with a hydraulic transmission fork head, the hydraulic transmission fork head drives a pallet fork to laterally move and rotate, and meanwhile, the hydraulic transmission fork head integrally lifts along a lifting track on a forklift body, so that three-way stacking is realized. The hydraulic transmission fork head relies on the hydraulic oil transmission power in the pipeline, need dispose the hydraulic pressure pipeline of overlength in order to match the lift, and this operating mode makes the energy consumption of hydraulic transmission fork head high, the noise is big, fork truck continuation of the journey ability is poor, and the sidesway can not accurate control with the rotational position, has the limitation to AGV's development.

Disclosure of Invention

The embodiment of the invention provides a three-way forklift electric fork head, which replaces a traditional hydraulic transmission fork head to realize the lateral movement and rotation of a fork, can reduce the energy consumption of the fork during the lateral movement and rotation, reduce the noise, improve the efficiency, improve the cruising ability of the forklift, improve the control precision, and has simpler structure and circuit design and more stable operation; the control system provides a better control environment for the subsequent control of the AGV of the forklift, and reduces the difficulty of the structural design and the line design of the whole forklift.

In order to solve the technical problem, the invention provides a three-way forklift electric fork head which comprises a pallet fork, a side shifting assembly and a rotating assembly, wherein the pallet fork is connected to the rotating assembly, and the rotating assembly is connected to the side shifting assembly;

The side shift assembly comprises a side shift shaft, a side shift execution wheel and a side shift motor; the lateral shifting execution wheel is fixed on the lateral shifting shaft and is matched with a lateral shifting belt arranged on an inner carriage of the three-way forklift; the side shift shaft is connected with the case through a bearing, the middle section of the side shift shaft is connected with a side shift transmission mechanism, and the power input end of the side shift transmission mechanism is connected with the side shift motor; the side shifting transmission mechanism and the side shifting motor are both arranged in the case; a rear seat of the case is provided with a lateral movement mechanical limiting component which is matched with a butting part arranged on an inner sliding frame of the three-way forklift;

The rotating assembly comprises a rotating shaft and a rotating motor; the rotating shaft is arranged parallel to the side shifting shaft and is connected with the case through a bearing; the near section of the rotating shaft is connected with a rotating transmission mechanism, the power input end of the rotating transmission mechanism is connected with the rotating motor, and the rotating transmission mechanism and the rotating motor are both arranged in the case; the middle section of the rotating shaft is connected with the pallet fork; the far-end section of the rotating shaft is connected with a rotating mechanical limiting component, and the rotating mechanical limiting component supports and limits the rotating shaft when the rotating shaft stops rotating.

In a preferred embodiment of the present invention, the rotating mechanical limiting component further comprises a rotating disc and a top shaft, the rotating disc is assembled on the rotating shaft, and the rotating disc is symmetrically provided with two sets of limiting notches by taking the rotating shaft as a center; the apical axis supports on the foot rest of quick-witted case, and can remove along the direction of perpendicular to rotation axis, the tip of apical axis is equipped with mechanical stopper, the apical axis overcoat is equipped with the spring, quick-witted case foot rest is connected at the both ends of spring, spring application of force makes mechanical stopper screens in the apical axis be in the spacing breach when the rotation axis rotation stops.

In a preferred embodiment of the present invention, the lateral shift shaft further comprises two sets of lateral shift execution wheels fixed thereon, and the two sets of lateral shift execution wheels are respectively disposed at two sides of the middle section of the lateral shift shaft.

In a preferred embodiment of the invention, the side shift execution wheel is a side shift gear, the side shift gear is meshed with a rack arranged on a carriage in the three-way forklift, and the side shift gear is meshed with the rack to convert the rotation of the side shift gear into the linear movement of the side shift gear along the rack.

In a preferred embodiment of the present invention, the side shift transmission mechanism is a gear transmission mechanism, which includes a side shift output gear, a first transition gear and a second transition gear, the side shift output gear is connected to the side shift motor, the first transition gear is connected to the chassis through a bearing and is engaged with the side shift output gear, and the second transition gear is fixed to the middle section of the side shift shaft and is engaged with the first transition gear.

In a preferred embodiment of the invention, the side shift assembly further comprises a side shift monitor, the side shift monitor comprises a side shift feedback gear and a first potentiometer, the side shift feedback gear is connected with the case through a bearing and meshed with the side shift output gear, and the first potentiometer is fixed on the side shift feedback gear.

In a preferred embodiment of the invention, the side-shift motor is further provided with an electromagnetic brake which outputs power to the side-shift output gear through a speed reducer; the side shift motor is connected with a side shift controller which operates according to a side shift signal of the side shift controller.

In a preferred embodiment of the present invention, the rotation transmission mechanism is a gear transmission mechanism, which includes a rotation gear, a dual gear and a rotation output gear, the rotation gear is fixed on the rotation shaft, the dual gear is connected to the chassis through a bearing, and a first tooth portion of the dual gear is engaged with the rotation gear, a second tooth portion of the dual gear is engaged with the rotation output gear, and the rotation output gear is connected to a rotation motor.

in a preferred embodiment of the present invention, the rotation assembly further comprises a rotation monitor, and the rotation monitor comprises a second potentiometer fixed on the rotation shaft.

in a preferred embodiment of the present invention, the rotating electric machine further comprises an electromagnetic brake for outputting power to the rotating output gear through a second speed reducer; the rotating motor is connected with a rotating controller and operates according to a rotating signal of the rotating controller.

The invention has the beneficial effects that:

Firstly, the electric fork head of the embodiment of the invention replaces the traditional hydraulic transmission fork head and is applied to a three-way stacking forklift to realize the functions of lateral movement and rotation of the fork, so that the energy consumption of the fork during lateral movement and rotation can be reduced, the noise is reduced, the efficiency is improved, the cruising ability of the forklift is improved, the control precision is improved, and the structure and the circuit design are simpler; the control system provides a better control environment for the subsequent control of the AGV of the forklift, and reduces the difficulty of the structural design and the line design of the whole forklift.

And secondly, the designed lateral movement mechanical limiting part protects the electric fork head to fall off under extreme conditions, and the designed rotary mechanical limiting part can better lock the fork when the rotary shaft rotates to the limit positions on two sides, so that the fork is prevented from shaking in the stacking or unstacking process, and the operation stability and the safety and reliability of the electric fork head are improved.

drawings

FIG. 1 is a schematic view of an embodiment of the present invention showing the construction of an electric fork;

FIG. 2 is a side view of the power prong of FIG. 1;

FIG. 3 is a schematic bottom view of the power prong of FIG. 1;

fig. 4 is a schematic structural view of a three-way forklift using the electric fork of fig. 1.

The reference numbers in the figures illustrate: 1-side shift belt, 11-electric fork head, 111-abutting part;

2-fork, 4-side shift shaft, 6-side shift actuating wheel, 8-side shift motor, 10-chassis, 12-rotation shaft, 14-rotation motor, 16-side shift output gear, 18-transition gear I, 20-transition gear II, 22-side shift feedback gear, 24-potentiometer I, 26, 27-electromagnetic brake, 28-reducer I, 30-side shift controller, 32-rotation gear, 34-duplicate gear, 36-rotation output gear, 38-potentiometer II, 40-reducer II, 42-foot rest, 44-reinforced support plate, 46-rotation controller, 48-complete machine controller, 50-fork mounting part;

52-rotating disc, 54-top shaft, 56-limit notch, 58-mechanical limit block, 60-spring, 62-side movement mechanical limit component, 621-base and 622-side movement limit block.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.