CN210591403U

CN210591403U - Electric forklift transmission device with power takeoff structure

Info

Publication number: CN210591403U
Application number: CN201921468412.2U
Authority: CN
Inventors: 余非汝; 吴琳琪; 万媛媛; 王永国; 孙建国
Original assignee: Zf Heli Transmission Technology Hefei Co Ltd
Current assignee: Zf Heli Transmission Technology Hefei Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-05-22
Anticipated expiration: 2029-09-05

Abstract

The utility model relates to the technical field of forklift production and manufacturing, and discloses an electric forklift transmission device with a power takeoff structure, which comprises a vehicle body, wherein a walking motor is fixedly connected on the outer wall of the vehicle body, the walking motor operates and is sufficiently decelerated by three gear pairs and three deceleration rods, the power after deceleration is divided into two parts on a third deceleration rod, one part drives a hydraulic device to operate through a hydraulic rod to realize the lifting of goods, the other part is transmitted to a driving rod and drives a left half shaft and a right half shaft to rotate after the conversion of a planetary gear and a sun gear, so that rear wheels at the tops of the left half shaft and the right half shaft rotate to realize the advancing and retreating of a forklift, has the advantage that the layout space of the whole vehicle can be increased.

Description

Electric forklift transmission device with power takeoff structure

Technical Field

The utility model relates to a fork truck's production and manufacturing technical field specifically are an electric fork truck transmission of area power takeoff structure.

Background

In the material handling industry, electric forklifts are widely used, and generally, the electric forklifts are provided with two motors, namely a walking motor and a lifting motor. After the walking motor is electrified, power is input into a transmission device of the forklift, the running function that the forklift moves forwards and backwards is achieved, and after the lifting motor is electrified, power is input into a hydraulic system, and the function that the pallet fork lifts and moves cargos is achieved. The electric forklift has the advantages of comfortable operation, high stability, low noise, no pollution, low failure rate and flexible transportation, so that the electric forklift is widely applied to places such as storage, logistics and the like, along with the development of the society, the market competition is increasingly intense, and the requirement on the production cost of the forklift is more and more strict. Because two motors are arranged on the traditional electric forklift, the spatial arrangement of the whole forklift is influenced, the cost is higher, and the electric forklift does not dominate under the current complex and drastic market environment, so that how to enable the internal structure of the forklift to be simpler and more efficient becomes a technical problem which needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a take electric fork-lift transmission of power takeoff structure possesses the advantage that increases whole car and can arrange the space, has solved the great problem of fork truck bi-motor occupation space.

(II) technical scheme

For the electric fork-lift transmission purpose of realizing above-mentioned area power takeoff structure, the utility model provides a following technical scheme: an electric forklift transmission device with a power takeoff structure comprises a vehicle body, wherein the upper side surface of the vehicle body is movably connected with a front wheel, the outer wall of the vehicle body is fixedly connected with a walking motor, the top of an output shaft of the walking motor is fixedly connected with a first speed reducing rod, the outer wall of the first speed reducing rod is fixedly connected with a first gear pair, the bottom of the first gear pair is fixedly connected with a second speed reducing rod, the bottom of the second speed reducing rod is fixedly connected with a second gear pair, the right side of the second gear pair is fixedly connected with a third speed reducing rod, the right end of the third speed reducing rod is movably connected with a power takeoff, the top of the output shaft of the power takeoff is fixedly connected with a rotary disc, the outer wall of the rotary disc is hinged with a hydraulic rod, the outer wall of the third speed reducing rod is fixedly connected with a third gear pair, and the bottom of the third gear pair is fixedly connected with a driving, the bottom fixedly connected with drive wheel of actuating lever, the outer wall meshing of drive wheel has the drive wheel, the right side fixedly connected with frame of drive wheel, swing joint has planetary gear on the inner wall of frame, planetary gear's inner wall meshing has sun gear, sun gear's left side fixedly connected with left semi-axis, sun gear's right side fixedly connected with right semi-axis, the equal fixedly connected with rear wheel in top of left semi-axis and right semi-axis, the slot has been seted up at the center of drive wheel, the flower groove has been seted up on the inner wall of slot, the inner wall swing joint of flower groove has the spline, spline fixed connection is on the outer wall of left semi-axis.

Preferably, first gear pair, second gear pair and third gear pair are a set of intermeshing's conical gear, through three gear pairs of group and three speed reduction poles, can slow down the walking motor effectively, make fork truck travel more stably controllable, the arrangement of the power takeoff of also being convenient for.

Preferably, the top fixed connection of power takeoff output shaft is at the edge of carousel, and the bottom of hydraulic stem articulates in the edge of the one side relative with the power takeoff output shaft, can drive the hydraulic stem through the carousel and do the circular motion round the output shaft of power takeoff when making the power takeoff output shaft rotate to can make the hydraulic stem flexible, export hydraulic system in, realize the lift transport of goods.

Preferably, the frame is two parallel horizontal poles, fixes two places about the right side of drive wheel respectively, and the stable position of fixing planetary gear and drive wheel makes the drive wheel when rotatory planetary gear can follow the drive wheel and rotate, drives sun gear's rotation then, and the drive rear wheel rotates.

Preferably, the planetary gear and the sun gear are both two and combined with each other to form a rectangle, so that the planetary gear can drive the sun gear to rotate, and then the left half shaft and the right half shaft which are fixedly connected with the two sides of the left side of the sun gear rotate to drive the forklift to run.

Preferably, the lengths of the left half shaft and the right half shaft are unequal, but the two rear wheels are symmetrical with each other about the center line of the vehicle body, and the rear wheels can run more stably due to the mutual symmetry, so that a driver can operate the vehicle conveniently, and goods can be carried more stably.

Preferably, sun gear's both sides all through the spline respectively with left half axle and right half axle fixed connection, spline connection makes the junction more stable firm, also difficult after permanent use makes the drive inefficacy because of wearing and tearing scheduling problem, has improved fork truck's life.

(III) advantageous effects

Compared with the prior art, the utility model provides a take electric fork-lift transmission of power takeoff structure possesses following beneficial effect:

1. the electric forklift transmission device with the power takeoff structure drives the first speed reducing rod to rotate through the running of the walking motor, the first speed reducing rod drives the first gear pair fixedly connected with the outer wall of the first gear pair to rotate, the first gear pair drives the second speed reducing rod fixedly connected with the bottom of the first gear pair to rotate, the second speed reducing rod rotates to drive the second gear pair to rotate, the second gear pair drives the third speed reducing rod to rotate to fully decelerate the walking motor, when the third speed reducing rod rotates, the power takeoff is movably connected with the top of the third speed reducing rod to drive the output shaft of the power takeoff to rotate, the output shaft of the power takeoff rotates to drive the turntable fixedly connected with the power takeoff to rotate, so that the bottom of the hydraulic rod hinged with the edge of the turntable does circular motion around the output shaft of the power takeoff, the hydraulic rod can stretch and is output to a hydraulic system, and the goods can be lifted and transported, through the cooperation use between walking motor, first gear pair, second gear pair, third gear pair, power takeoff, carousel and the hydraulic stem to effectively make hydraulic means motion has been reached, the effect of realization goods lift transport.

2. The electric forklift transmission device with the power takeoff structure drives the driving rod to rotate through the third gear pair fixedly connected with the outer wall of the third speed reducing rod, the driving rod rotates to enable the driving wheel fixedly connected with the bottom of the driving rod to rotate along with the rotation of the driving rod, then the driving wheel drives the driving wheel to rotate through the driving wheel, when the driving wheel rotates, the frame fixedly connected with the right side of the driving wheel is driven to rotate, the planetary gear movably connected with the inner wall of the frame rotates, the planetary gear rotates to drive the sun gear meshed with the inner wall of the driving wheel to rotate along with the rotation of the planetary gear, the left half shaft and the right half shaft can rotate on the vehicle body to drive the rear wheel to rotate, so that the forklift moves forwards or backwards, and the third speed reducing rod, the third gear pair, the driving rod, the driving wheel, the frame, the planetary gear, the sun gear, The cooperation between vehicle main part and the rear wheel is used to only having reached and only having used a motor just can drive fork truck walking and goods transport, increase the effect that whole car can arrange the space.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of a portion B of FIG. 1 according to the present invention;

fig. 4 is a partial side view of the power takeoff of the present invention;

fig. 5 is a partial sectional view of the transmission wheel of the present invention.

In the figure: 1-vehicle body, 2-front wheel, 3-rear wheel, 4-left half shaft, 5-right half shaft, 6-power takeoff, 7-rotary table, 8-hydraulic rod, 9-traveling motor, 10-first speed reducing rod, 11-first gear pair, 12-second gear pair, 13-third gear pair, 14-second speed reducing rod, 15-third speed reducing rod, 16-driving rod, 17-driving wheel, 18-driving wheel, 19-planetary gear, 20-sun gear, 21-frame, 22-slot, 23-spline and 24-spline.

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.

Referring to fig. 1-5, an electric forklift transmission device with a power takeoff structure comprises a vehicle body 1, a front wheel 2 is movably connected to the side surface of the upper portion of the vehicle body 1, a traveling motor 9 is fixedly connected to the outer wall of the vehicle body 1, a first deceleration rod 10 is fixedly connected to the top of an output shaft of the traveling motor 9, a first gear pair 11 is fixedly connected to the outer wall of the first deceleration rod 10, a second deceleration rod 14 is fixedly connected to the bottom of the first gear pair 11, a second gear pair 12 is fixedly connected to the bottom of the second deceleration rod 14, a third deceleration rod 15 is fixedly connected to the right side of the second gear pair 12, a power takeoff 6 is movably connected to the right end of the third deceleration rod 15, a rotary table 7 is fixedly connected to the top of the output shaft of the power takeoff 6, a hydraulic rod 8 is hinged to the outer wall of the rotary table 7, the top end of the output shaft of the power takeoff 6 is fixedly connected to the edge of the rotary table 7, the bottom of the, when the output shaft of the power takeoff 6 rotates, the hydraulic rod 8 can be driven by the rotary table 7 to do circular motion around the output shaft of the power takeoff 6, so that the hydraulic rod 8 can stretch and retract and is output to a hydraulic system, lifting and carrying of goods are realized, the outer wall of the third speed reducing rod 15 is fixedly connected with the third gear pair 13, the first gear pair 11, the second gear pair 12 and the third gear pair 13 are a group of conical gears meshed with each other, the walking motor 9 can be effectively reduced through three groups of gear pairs and three speed reducing rods, the running of a forklift is more stable and controllable, the power takeoff 6 is convenient to arrange, the bottom of the third gear pair 13 is fixedly connected with the driving rod 16, the bottom of the driving rod 16 is fixedly connected with the driving wheel 17, the outer wall of the driving wheel 17 is meshed with the driving wheel 18, the right side of the driving wheel 18 is fixedly connected with the frame 21, and the frame, the driving wheel 18 is respectively fixed at the upper and lower positions on the right side of the driving wheel 18, the positions of the planetary gear 19 and the driving wheel 18 are stably fixed, when the driving wheel 18 rotates, the planetary gear 19 can rotate along with the driving wheel 18 and the rotation, so as to drive the sun gear 20 to rotate, the rear wheel 3 is driven to rotate, the planetary gear 19 is movably connected to the inner wall of the frame 21, the sun gear 20 is meshed with the inner wall of the planetary gear 19, two planetary gears 19 and two sun gears 20 are combined with each other to form a rectangle, so that the planetary gear 19 can drive the sun gear 20 to rotate, further, the left half shaft 4 and the right half shaft 5 which are fixedly connected with the left side and the right side of the sun gear 20 are driven to rotate, the forklift is driven to run, the left side of the sun gear 20 is fixedly connected with the left half shaft 4, the right side of the sun gear 20 is fixedly, left half axle 4 and right half axle 5 length inequality, but two rear wheels 3 are symmetrical about the central line of vehicle main part 1 each other, rear wheel 3 mutual symmetry can be more stable go, be convenient for the driver to operate, thereby can more stable transport goods, slot 22 has been seted up at the center of drive wheel 18, flower trough 24 has been seted up on slot 22's the inner wall, the inner wall swing joint of flower trough 24 has spline 23, spline 23 fixed connection is on the outer wall of left half axle 4, sun gear 20's both sides all through spline 23 respectively with left half axle 4 and right half axle 5 fixed connection, spline 23 connects makes the more stable firm of junction, also difficult make the drive inefficacy because of wearing and tearing scheduling problem after permanent use, fork truck's life has been improved.

The working principle is as follows: after a walking motor 9 is connected with a power supply, the walking motor operates to drive a first speed reducing rod 10 to rotate, the first speed reducing rod 10 rotates to drive a first gear pair 11 to rotate, the first gear pair 11 rotates to drive a second speed reducing rod 14 to rotate, the second speed reducing rod 14 rotates to enable a second gear pair 12 to rotate, the second gear pair 12 rotates to drive a third speed reducing rod 15 to rotate, output of the walking motor 9 is fully reduced, power is divided into two parts when the third speed reducing rod 15 rotates, one part drives an output shaft of a power takeoff 6 to rotate through the top of the third speed reducing rod 15, an output shaft of the power takeoff 6 rotates to enable a rotary disc 7 to rotate, so that the bottom of a hydraulic rod 8 does circular motion around the output shaft of the power takeoff 6 to drive the hydraulic rod 8 to stretch and output to a hydraulic system, lifting and carrying of goods are realized, the other part of power drives a driving rod 16 to rotate through a third gear pair 13 fixedly connected with the outer wall of the third speed reducing rod 15, the rotation of the driving rod 16 drives the driving wheel 18 to rotate through the driving wheel 17, so that the frame 21 on the right side of the driving wheel 18 rotates and drives the planetary gears 19 in the frame 21 to rotate, the sun gear 20 rotates along with the rotation of the planetary gears 19, and the rear wheel 3 is driven to rotate, so that the forklift moves forwards or backwards.

To sum up, the electric forklift transmission device with the power takeoff structure drives the first speed reduction rod 10 to rotate through the operation of the traveling motor 9, the first speed reduction rod 10 rotates to drive the first gear pair 11 fixedly connected with the outer wall of the first speed reduction rod to rotate, the first gear pair 11 rotates to drive the second speed reduction rod 14 fixedly connected with the bottom of the first speed reduction rod to rotate, the second speed reduction rod 14 rotates to drive the second gear pair 12 to rotate, the second gear pair 12 rotates to drive the third speed reduction rod 15 to rotate, the traveling motor 9 is fully decelerated, when the third speed reduction rod 15 rotates, the power takeoff 6 is movably connected with the top of the third speed reduction rod, so that the output shaft of the power takeoff 6 is driven to rotate, the output shaft of the power takeoff 6 rotates to drive the fixedly connected rotary disc 7 to rotate, so that the bottom of the hydraulic rod 8 hinged with the edge of the rotary disc 7 does circular motion around the output shaft of the power takeoff 6, and the hydraulic rod 8 can stretch, the hydraulic device is output to a hydraulic system to realize lifting and carrying of goods, and the walking motor 9, the first speed reducing rod 10, the first gear pair 11, the second speed reducing rod 14, the second gear pair 12, the third speed reducing rod 15, the power takeoff 6, the rotary table 7 and the hydraulic rod 8 are used in a matched mode, so that the effects of effectively enabling the hydraulic device to move and realizing lifting and carrying of goods are achieved; a forklift driving part, a third gear pair 13 fixedly connected with the outer wall of a third reducing lever 15 drives a driving rod 16 to rotate, the driving rod 16 rotates to enable a driving wheel 17 fixedly connected with the bottom of the driving rod 16 to rotate along with the rotation of the driving rod 16, and then the driving wheel 17 drives a driving wheel 18 to rotate, when the driving wheel 18 rotates, a frame 21 fixedly connected with the right side of the driving rod is driven to rotate, a planetary gear 19 movably connected with the inner wall of the frame 21 rotates, the planetary gear 19 rotates to drive a sun gear 20 meshed with the inner wall of the planetary gear 19 to rotate along with the rotation of the planetary gear 19, so that a left half shaft 4 and a right half shaft 5 can rotate on a vehicle main body 1 to drive a rear wheel 3 to rotate, the forklift is driven to advance or retreat, and the driving rod 16, the driving wheel 17, the driving wheel 18, the frame 21, the planetary gear 19, the rear wheel 3 and the third, The sun gear 20, the left half shaft 4, the right half shaft 5, the vehicle body 1 and the rear wheel 3 are matched for use, so that the effect that the forklift can be driven to walk and carry goods and the layout space of the whole vehicle can be increased by only using one motor is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take electric fork-lift transmission of power takeoff structure, includes vehicle main part (1), its characterized in that: the upper portion side swing joint of vehicle main part (1) has front wheel (2), the outer wall fixedly connected with walking motor (9) of vehicle main part (1), the output shaft top fixedly connected with first gear reduction pole (10) of walking motor (9), the outer wall fixedly connected with first gear pair (11) of first gear reduction pole (10), the bottom fixedly connected with second gear reduction pole (14) of first gear pair (11), the bottom fixedly connected with second gear pair (12) of second gear reduction pole (14), the right side fixedly connected with third gear reduction pole (15) of second gear pair (12), the right-hand member swing joint of third gear reduction pole (15) has power takeoff (6), the output shaft top fixedly connected with carousel (7) of power takeoff (6), the outer wall of carousel (7) articulates there is hydraulic stem (8), the outer wall of the third speed reducing rod (15) is fixedly connected with a third gear pair (13), the bottom of the third gear pair (13) is fixedly connected with a driving rod (16), the bottom of the driving rod (16) is fixedly connected with a driving wheel (17), the outer wall of the driving wheel (17) is meshed with a driving wheel (18), the right side of the driving wheel (18) is fixedly connected with a frame (21), the inner wall of the frame (21) is movably connected with a planetary gear (19), the inner wall of the planetary gear (19) is meshed with a sun gear (20), the left side of the sun gear (20) is fixedly connected with a left half shaft (4), the right side of the sun gear (20) is fixedly connected with a right half shaft (5), the tops of the left half shaft (4) and the right half shaft (5) are fixedly connected with a rear wheel (3), and a slot (22) is formed in the center of the, a flower groove (24) is formed in the inner wall of the slot (22), a spline (23) is movably connected to the inner wall of the flower groove (24), and the spline (23) is fixedly connected to the outer wall of the left half shaft (4).

2. The electric forklift transmission device with the power takeoff structure as recited in claim 1, wherein: the first gear pair (11), the second gear pair (12) and the third gear pair (13) are all a group of conical gears which are meshed with each other.

3. The electric forklift transmission device with the power takeoff structure as recited in claim 1, wherein: the top end of the output shaft of the power takeoff (6) is fixedly connected to the edge of the rotary table (7), and the bottom of the hydraulic rod (8) is hinged to the edge of one side opposite to the output shaft of the power takeoff (6).

4. The electric forklift transmission device with the power takeoff structure as recited in claim 1, wherein: the frame (21) is two parallel cross bars which are respectively fixed at the upper and lower parts of the right side of the driving wheel (18).

5. The electric forklift transmission device with the power takeoff structure as recited in claim 1, wherein: the planetary gear (19) and the sun gear (20) are two and combined with each other to form a rectangle.

6. The electric forklift transmission device with the power takeoff structure as recited in claim 1, wherein: the left half shaft (4) and the right half shaft (5) are unequal in length, but the two rear wheels (3) are symmetrical to each other about a centerline of the vehicle body (1).

7. The electric forklift transmission device with the power takeoff structure as recited in claim 1, wherein: both sides of the sun gear (20) are respectively and fixedly connected with the left half shaft (4) and the right half shaft (5) through splines (23).