Pallet fork driving wheel module of latent forklift

Abstract

The utility model discloses a pallet fork driving wheel module of a latent forklift. The driving wheel module comprises two driving wheels, a double-output-shaft speed reducer and a servo motor. The two driving wheels are connected to output shafts on the two sides of the double-output-shaft speed reducer correspondingly. A motor shaft of the servo motor is connected to the input end of the double-output-shaft speed reducer. A mounting inner ring is arranged at one end of the double-output-shaft speed reducer; a planetary gear set is rotationally mounted in the mounting inner ring; a rotating shaft is rotationally mounted on the outer side of the mounting inner ring; the planetary gear set is provided with an output end; a first bevel gear is arranged at the end part of the rotating shaft; a driving shaft is further arranged in the double-output-shaft speed reducer. A second bevel gear matched with the first bevel gear is arranged in the middle of the driving shaft, and output shafts are arranged at the two ends of the driving shaft respectively; and a sun gear is arranged on a motor shaft of the servo motor. The pallet fork driving wheel module of the latent forklift is simple and compact in structure, driving force is increased while the stability of the latent forklift is improved, heavy objects can be loaded, and the latent forklift can meet complex working conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fork drive wheel module of a latent forklift. BACKGROUND

[0002] The existing latent forklift has two main ways of taking goods: the first way is that the forks lift the goods, the latent forklift body moves to the goods, and the goods fall onto the body; the second way is that the forks lift the goods and move the goods to the latent forklift body, and the goods fall onto the body. The first way only loads the forks to move, has low requirements for the moving load performance of the forks, is mainly aimed at goods placed on the ground, and meets a relatively single working condition; the second way loads the forks and the goods to move, has high requirements for the moving load performance of the forks, and needs a complex drive module structure to ensure the transfer function, requires a large installation space, and has a high cost. SUMMARY

[0003] The utility model provides a fork drive wheel module of a latent forklift to solve the above-mentioned technical problems, and specifically adopts the following technical scheme:

[0004] A fork drive wheel module of a latent forklift, comprising: a forklift chassis; a lifting assembly and a lifting drive assembly for driving the lifting assembly are installed in the forklift chassis; a lifting fork plate for lifting goods is installed above the lifting assembly; a drive wheel module for driving the latent forklift is also installed in the forklift chassis; the drive wheel module comprises: two drive wheels, a double-output shaft reducer, and a servo motor; the two drive wheels are connected to the output shafts on the two sides of the double-output shaft reducer; the motor shaft of the servo motor is connected to the input end of the double-output shaft reducer; one end of the double-output shaft reducer is provided with: an installation inner ring; a planetary gear set is rotatably installed in the installation inner ring; a rotating shaft is rotatably installed on the outer side of the installation inner ring; the planetary gear set is provided with an output end for being connected to the rotating shaft to drive the rotating shaft to rotate; the end of the rotating shaft is provided with a first bevel gear; the double-output shaft reducer is also provided with a drive shaft; the middle part of the drive shaft is provided with a second bevel gear for matching the first bevel gear, and the two ends are respectively provided with output shafts; the motor shaft of the servo motor is provided with a sun gear for meshing with a plurality of planet gears of the planetary gear set.

[0005] Further, the output end of the planetary gear set is connected to the rotating shaft through a synchronous belt.

[0006] Further, the output end of the planetary gear set is formed with a drive gear; the outer periphery of the rotating shaft is formed with a matching gear for matching the drive gear.

[0007] Further, the planetary gear set comprises three planet gears; one end of any one of the three planet gears is formed with an output end.

[0008] Further, the outer periphery of the output shaft is fixed with a support ring for mounting the driving wheel; the driving wheel is fixed to the outer periphery of the support ring by screws.

[0009] Further, a rotating bearing for rotating the support ring is arranged between the support ring and the housing of the double-output-shaft speed reducer; the support ring is fixed to the inner ring of the rotating bearing.

[0010] Further, the driving wheel, the support ring and the inner ring of the rotating bearing are fixed into a rotating whole by screws.

[0011] Further, one side of the support ring is formed with a mounting protrusion; the inner side of the driving wheel is provided with a mounting clamping groove for cooperating with the mounting protrusion to limit the pre-installation of the driving wheel.

[0012] Further, the support ring is press-fitted on the outer periphery of the output shaft by means of a spline interference.

[0013] Further, an auxiliary wheel for cooperating with the driving wheel to assist in supporting the stealthy forklift is also mounted in the forklift chassis; the auxiliary wheel and the driving wheel are arranged at two ends of the forklift chassis respectively.

[0014] The forklift drive wheel module of the stealthy forklift provided by the utility model adopts double-shaft output, drives two driving wheels to drive the whole stealthy forklift, improves the stability of the stealthy forklift, has simple and compact structure, requires small installation space, makes the whole stealthy forklift more compact and flexible. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Figure 1 is a schematic diagram of the forklift drive wheel module of the stealthy forklift in the utility model;

[0017] Figure 2 is Figure 1 is a schematic diagram of the driving wheel module of the forklift drive wheel module of the stealthy forklift in the utility model;

[0018] Figure 3 is Figure 2 is an exploded view of the driving wheel module of the forklift drive wheel module of the stealthy forklift in the utility model;

[0019] Figure 4 is Figure 2 a schematic view of the internal structure of the drive wheel module of the drive wheel module of the hidden fork of the forklift in

[0020] Figure 5 is Figure 2 a schematic view of the servo motor of the drive wheel module of the drive wheel module of the hidden fork of the forklift in

[0021] The drive wheel module 10 of the hidden fork of the forklift, the forklift chassis 11, the lifting assembly 12, the lifting drive assembly 13, the lifting fork plate 14, the drive wheel module 15, the drive wheel 151, the mounting clamping groove 1511, the double-output shaft reducer 152, the mounting inner ring 1521, the planetary gear set 1522, the output end (not shown), the synchronous belt 1523, the rotating shaft 1524, the first bevel gear 1525, the drive shaft 1526, the second bevel gear 1527, the servo motor 153, the sun gear 1531, the support ring 154, the mounting protrusion 1541, the rotating bearing 155, the auxiliary wheel 16. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0023] As Figures 1 to 5 shown, the drive wheel module 10 of the hidden fork of the forklift of the present application comprises: a forklift chassis 11, a lifting assembly 12 and a lifting drive assembly 13 for driving the lifting assembly 12 are installed in the forklift chassis 11, and a lifting fork plate 14 for lifting goods is installed above the lifting assembly 12. The forklift chassis 11 also has a drive wheel module 15 installed therein for driving the hidden forklift, the drive wheel module 15 comprises: two drive wheels 151, a double-output shaft reducer 152 and a servo motor 153, the two drive wheels 151 are respectively connected to the output shafts on both sides of the double-output shaft reducer 152, and then the motor shaft of the servo motor 153 is connected to the input end of the double-output shaft reducer 152 to drive the input end of the double-output shaft reducer 152 to rotate simultaneously.

[0024] Specifically, one end of the double-output shaft reducer 152 is provided with: an installation inner ring 1521, a planetary gear set 1522 is rotatably installed in the installation inner ring 1521, a rotating shaft 1524 is rotatably installed on the outer side of the installation inner ring 1521, the planetary gear set 1522 is provided with an output end and is connected to the rotating shaft 1524 through the output end to drive the rotating shaft 1524 to rotate, the motor shaft of the servo motor 153 is provided with a sun gear 1531 for meshing with a plurality of planet gears of the planetary gear set 1522, so that the first-stage reduction is realized through the planetary gear set 1522. The end of the rotating shaft 1524 is provided with a first bevel gear 1525, and the double-output shaft reducer 152 is also provided with a drive shaft 1526, the middle part of the drive shaft 1526 is provided with a second bevel gear 1527 for matching the first bevel gear 1525, and the two ends are respectively provided with the output shaft, so that the second-stage reduction is realized through the bevel gear structure. That is, the servo motor 153 transmits torque to the planetary gear set 1522 for first-stage reduction transmission, and then transmits torque to the drive shaft 1526 through the rotating shaft 1524, so as to drive the two drive wheels 151 to rotate. Such a two-stage transmission structure is compact in structure, low in torque transmission loss, adopts double-shaft output, drives the two drive wheels 151 to drive the whole hidden forklift, improves the stability of the hidden forklift, and is simple and compact in structure, small in required installation space, so that the whole hidden forklift is more small and flexible. The scheme utilizes the planetary gear set 1522 and the bevel gear transmission, effectively improves the transmission ratio in a limited space structure through a simple structure, constitutes a high-ratio reducer, thereby increases the driving force, can load heavy objects, and makes the hidden forklift meet complex working conditions.

[0025] As a specific embodiment, the output end of the planetary gear set 1522 is connected to the rotating shaft 1524 through a synchronous belt 1523, which is simple in structure, high in synchronization and low in transmission loss.

[0026] As an optional embodiment, the output end of the planetary gear set 1522 is formed with a driving gear, and the outer periphery of the rotating shaft 1524 is formed with a matching gear for matching the driving gear. Such gear meshing structure is stable in transmission structure, high in transmission ratio and low in transmission loss.

[0027] As a specific embodiment, the planetary gear set 1522 includes three planet gears which are supported by the sun gear 1531 in the circumferential direction, so as to ensure the balance of the transmission structure inside the reducer and improve the service life of the internal structure of the reducer. One end of any one of the three planet gears is formed with an output end to match the torque transmission of the rotating shaft 1524.

[0028] As a specific embodiment, the outer periphery of the output shaft is fixed with a support ring 154 for mounting the driving wheel 151, and the driving wheel 151 is fixed to the outer periphery of the support ring 154 by screws. A rotating bearing 155 is further arranged between the support ring 154 and the housing of the double-output shaft reducer 152 for rotatingly supporting the support ring 154, and the support ring 154 is fixed to the inner ring of the rotating bearing 155 to rotate synchronously with the inner ring of the rotating bearing 155, so that the structure has high stability, low torque transmission loss, and more stable rotating structure.

[0029] Further, the driving wheel 151, the support ring 154, and the inner ring of the rotating bearing 155 are fixed into a rotating whole by screws, so that the whole end transmission structure serves as a rotating wheel whole, which not only has low transmission torque loss, but also has better overall structural support performance.

[0030] As a specific embodiment, one side of the support ring 154 is formed with a mounting protrusion 1541, and the inner side of the driving wheel 151 is provided with a mounting clamping groove 1511, which cooperates with the mounting protrusion 1541 to limit and pre-mount the driving wheel 151, so that the installation efficiency is high, the installation precision is higher, and the relative rotating position of the driving wheel 151 can be limited during the rotation of the driving wheel 151, so as to prevent the position of the driving wheel 151 from deviating during long-term use, and ensure the stability of the transmission structure.

[0031] As a specific embodiment, the support ring 154 is press-fitted on the outer periphery of the output shaft through a spline interference, and the installation structure is simple and stable.

[0032] As a specific embodiment, the forklift chassis 11 is further provided with an auxiliary wheel 16 for assisting the driving wheel 151 to assist the support of the hidden forklift, and the auxiliary wheel 16 and the driving wheel 151 are arranged at two ends of the forklift chassis 11. In this way, high-precision torque transmission is realized through a compact and high-transmission-ratio driving wheel module 15, driving operation is realized, the hidden forklift can stably load heavy objects, and energy consumption is low, which is more energy-saving.

[0033] The basic principles, main features, and advantages of the present application are shown and described above. Those skilled in the art should understand that the above examples do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A fork drive wheel module for a latent fork lift truck, comprising: The fork truck chassis is internally provided with a jacking assembly and a jacking drive assembly for driving the jacking assembly; The jacking assembly is internally provided with a jacking fork plate for jacking goods; The fork truck chassis is internally provided with a drive wheel module for driving the latent fork truck; The drive wheel module comprises two drive wheels, a double-output shaft reducer and a servo motor; The two drive wheels are respectively connected to the output shafts on both sides of the double-output shaft reducer; The motor shaft of the servo motor is connected to the input end of the double-output shaft reducer; One end of the double-output shaft reducer is provided with an installation inner ring; The installation inner ring is internally rotatably provided with a planetary gear set; The outer side of the installation inner ring is rotatably provided with a rotating shaft; The planetary gear set is provided with an output end for connecting to the rotating shaft to drive the rotating shaft to rotate; The end of the rotating shaft is provided with a first bevel gear; The double-output shaft reducer is internally provided with a drive shaft; The middle part of the drive shaft is provided with a second bevel gear for matching the first bevel gear, and both ends are respectively provided with the output shafts; The motor shaft of the servo motor is provided with a sun gear for meshing with the plurality of planetary gears of the planetary gear set.

2. The fork drive wheel module of the latent fork truck according to claim 1, wherein The output end of the planetary gear set is connected to the rotating shaft through a synchronous belt.

3. The fork drive wheel module of the latent fork truck according to claim 1, wherein The output end of the planetary gear set is formed with a drive gear; The outer periphery of the rotating shaft is formed with a matching gear for matching with the drive gear.

4. The fork drive wheel module of the latent fork truck according to claim 1, wherein The planetary gear set comprises three planetary gears; One end of any one of the three planetary gears is formed with the output end.

5. The fork drive wheel module of the latent fork truck according to claim 1, wherein The outer periphery of the output shaft is fixedly provided with a support ring for mounting the drive wheel; The drive wheel is fixed to the outer periphery of the support ring through a screw.

6. The fork drive wheel module of the latent fork truck according to claim 5, wherein A rotating bearing for rotatably supporting the support ring is further arranged between the support ring and the housing of the double-output shaft reducer; The support ring is fixed to the inner ring of the rotating bearing.

7. The fork drive wheel module of the latent fork truck according to claim 6, wherein The drive wheel, the support ring and the inner ring of the rotating bearing are fixed into a rotating whole through a screw.

8. The fork drive wheel module of the latent fork truck according to claim 5, wherein One side of the support ring is formed with a mounting protrusion; The inner side of the drive wheel is provided with a mounting clamping groove for matching the mounting protrusion to limit the pre-installation of the drive wheel.

9. The fork drive wheel module of the latent fork truck according to claim 5, wherein The support ring is press-fitted on the outer periphery of the output shaft through a spline interference.

10. The fork drive wheel module of the latent fork truck according to claim 5, wherein The forklift chassis is also provided with an auxiliary wheel for matching the driving wheel to assist in supporting the latent forklift. The auxiliary wheel and the driving wheel are respectively arranged at two ends of the forklift chassis.

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