Floating driving wheel module

Abstract

The utility model discloses a floating driving wheel module. The floating driving wheel module comprises a floating wheel frame, a universal wheel is mounted at one end of the floating wheel frame, and a driving assembly is mounted at the other end; the driving assembly comprises a flange installed at the other end of the floating wheel frame, a motor fixed to the flange, a speed reducer fixed to the flange, a driver installed on the motor and a driving wheel installed on the periphery of the speed reducer. A motor shaft of the motor is connected to the input end of the speed reducer; a hinge shaft is rotationally arranged in an inner hole formed in the floating wheel frame, and the floating wheel frame is hinged to the mounting chassis through the hinge shaft. The floating driving wheel module is simple and compact in structure, convenient to install and easy to machine and install, and the hinged floating structure is balanced in overall stress and high in stability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of floating drive wheel module. BACKGROUND

[0002] The floating wheel and the drive wheel mounting structure of existing latent fork truck are independent of each other, the floating wheel is installed on the mounting chassis through the floating frame, and the drive wheel is installed on the mounting chassis through the drive structure. In this way, the stress of the structure of the floating wheel and the drive wheel is independent of each other when running, and both have an up-down adjustment pushing effect on the mounting chassis. The installation operation of such floating wheel structure and drive wheel structure is complex, the structure parts are many, the installation space is dispersed, which leads to large overall installation space requirement, high overall cost, and both have a force effect in the up-down direction between the mounting chassis, so that the mounting chassis structure, the floating wheel structure and the drive wheel structure are all locally stressed, that is, there is a torsion and stress effect of different degrees between the three, which affects the service life of the overall structure. SUMMARY

[0003] The floating drive wheel module provided by the utility model solves the above-mentioned technical problems, and specifically adopts the following technical solutions:

[0004] A floating drive wheel module, comprising: a floating wheel frame; a universal wheel is installed at one end of the floating wheel frame, and a drive assembly is installed at the other end; the drive assembly comprises: a flange installed at the other end of the floating wheel frame, a motor fixed to the flange, a speed reducer fixed to the flange, a drive connected to the motor, and a drive wheel installed on the outer periphery of the speed reducer; the motor shaft of the motor is connected to the input end of the speed reducer; the hinge shaft is rotatably arranged in the inner hole of the floating wheel frame and is connected to the mounting chassis through the hinge shaft.

[0005] Further, the universal wheel is detachably installed at one end of the floating wheel frame through a nut.

[0006] Further, an oil-free bearing is arranged between the hinge shaft and the inner hole wall of the floating wheel frame.

[0007] Further, two oil-free bearings are arranged between the hinge shaft and the inner hole wall of the floating wheel frame; the two oil-free bearings are respectively installed at both ends of the inner hole of the floating wheel frame.

[0008] Further, a connecting part for matching the inner hole of the floating wheel frame is formed in the middle part of the hinge shaft; the parts on both sides of the connecting part of the hinge shaft are square mounting ends; the mounting holes for matching the mounting chassis to fix the hinge shaft are formed in the mounting ends.

[0009] Further, a gear is arranged at the end of the motor shaft, and the gear is engaged with the input end of the speed reducer.

[0010] Furthermore, a fixing plate is formed on one side of the flange for fixing it to the other end of the floating wheel frame; a fixing part is formed on one side of the motor housing, and a mounting part is formed on the other side; the fixing part and the mounting part are symmetrically arranged; the fixing part of the motor is fixed to the fixing plate; the driver is plugged into the mounting part via an electrical connector.

[0011] Furthermore, the fixing plate has two snap-fit ​​protrusions for snapping the fixing part; the two snap-fit ​​protrusions define the mounting fixing part from the upper and lower sides of the fixing part.

[0012] Furthermore, the motor housing has heat dissipation fins on both the upper and lower sides.

[0013] Furthermore, multiple heat sinks are formed at the end of the driver's housing.

[0014] The advantages of this utility model are that the floating drive wheel module provided has a simple and compact structure, is easy to install, has an integrated overall structure, requires less installation space, has low cost, is easy to process and install, and the hinged floating structure has a balanced overall force, high stability, and a longer service life. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the floating drive wheel module of this utility model;

[0017] Figure 2 yes Figure 1 An exploded view of the floating drive wheel module.

[0018] Floating drive wheel module 10, floating wheel frame 11, inner hole 111, caster wheel 12, flange 13, fixing plate 131, snap-fit ​​protrusion 132, motor 14, fixing part 141, mounting part 142, gear 143, heat dissipation fin 144, reducer 15, driver 16, heat sink 161, drive wheel 17, hinge shaft 18, connecting part 181, mounting end 182, mounting hole 183, nut 19, oil-free bearing 20. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0020] like Figures 1 to 2 As shown, a floating drive wheel 17 module 10 for a lurking forklift according to this application includes: a floating wheel frame 11, with a caster wheel 12 mounted on one end and a drive assembly mounted on the other end. The caster wheel 12 can be detachably mounted to one end of the floating wheel frame 11 using a nut 19, facilitating easy assembly and disassembly. The drive assembly includes: a flange 13, a motor 14, a reducer 15, a driver 16, and drive wheels 17. During installation, the flange 13 is mounted to the other end of the floating wheel frame 11, and the motor 14 and reducer 15 are both fixed to the flange 13. The motor shaft of the motor 14 is connected to the input end of the reducer 15. The driver 16 is mounted to the motor 14, and the drive wheels 17 are mounted on the outer periphery of the reducer 15. The floating wheel frame 11 has an inner hole 111, within which a hinge shaft 18 is rotatably mounted. The floating wheel frame 11 is hinged to the mounting chassis via the hinge shaft 18, allowing it to rotate relative to the mounting chassis. In this way, during operation, the motor 14 drives the drive wheel 17 on the outer periphery of the reducer 15 to roll. During the rolling process, the drive wheel 17 is driven by the floating wheel frame 11, which in turn drives the floating wheel to roll. When encountering uneven ground, the floating wheel and the drive wheel 17 move up and down under the rotation adjustment of the floating wheel frame 11 to adapt to the uneven ground surface. The floating wheel frame 11 can coordinate the forces on the drive wheel 17, the floating wheel, and the floating wheel frame 11, thereby ensuring the force balance of the overall floating structure, avoiding excessive torsional stress on local structures, and thus ensuring the service life of the structure.

[0021] The aforementioned floating drive wheel module 10 of the lurking forklift integrates the floating wheel and drive wheel 17 via a floating wheel frame 11 structure. This integrated unit is then floatingly mounted on the mounting chassis, and the drive wheel 17 is further mounted to the chassis via a drive structure. In this way, during operation, both the floating wheel and drive wheel 17 are driven by the drive assembly, reducing stress. Simultaneously, the forces on the floating wheel and drive wheel 17 are coordinated by the floating wheel frame 11, preventing vertical thrust on the mounting chassis and thus avoiding torsional stress between the front and rear ends of the chassis. This floating drive wheel module has a simple and compact structure, is easy to install, requires less installation space, is low-cost, easy to manufacture and install, and the articulated floating structure provides balanced overall force, high stability, and a longer service life.

[0022] In one specific implementation, an oil-free bearing 20 is provided between the hinge shaft 18 and the inner bore 111 wall of the floating wheel frame 11 to ensure the stability of the relative rotation between the hinge shaft 18 and the floating wheel frame 11. Specifically, two oil-free bearings 20 are provided between the hinge shaft 18 and the inner bore 111 wall of the floating wheel frame 11, and the two oil-free bearings 20 are respectively installed at both ends of the inner bore 111 of the floating wheel frame 11. This can further improve the structural stability of the hinge shaft 18 in supporting the rotation of the floating wheel frame 11, thereby ensuring the stability of the vertical floating structure of the floating wheel frame 11 and improving the smoothness of walking on uneven ground.

[0023] Furthermore, a connecting portion 181 is formed in the middle of the hinge shaft 18. This connecting portion 181 mates with the inner hole 111 of the floating wheel frame 11, meaning the floating wheel frame 11 is rotatably fitted onto the outer periphery of the connecting portion 181 through the inner hole 111. The portions of the hinge shaft 18 located on both sides of the connecting portion 181 are square mounting ends 182. These mounting ends 182 have mounting holes 183, which are used to mate with fixing holes on the mounting base to fix the hinge shaft 18 to the mounting base. The mounting ends 182 are designed to be square, allowing them to fit snugly against the mounting surface of the mounting base, thereby ensuring the installation accuracy of the hinge shaft 18.

[0024] As a specific implementation, the end of the motor shaft of the motor 14 is provided with a gear 143. The motor 14 is meshed with the input end of the reducer 15 through the gear 143. The structure is compact, the structural fit is high, and the torque transmission is more stable.

[0025] In one specific implementation, a fixing plate 131 is formed on one side of the flange 13, and the flange 13 copper drum fixing plate 131 is fixed to the other end of the floating wheel frame 11. A fixing part 141 is formed on one side of the housing of the motor 14, and a mounting part 142 is formed on the other side. The fixing part 141 and the mounting part 142 are symmetrically arranged to ensure the overall balance of the drive assembly. During installation, the fixing part 141 of the motor 14 is fixed to the fixing plate 131, and then the driver 16 is plugged into and installed in the mounting part 142 through an electrical connector.

[0026] The aforementioned fixing plate 131 has two snap-fit ​​protrusions 132. The two snap-fit ​​protrusions 132 limit the installation of the fixing part 141 from the upper and lower sides of the fixing part 141, thereby snapping the fixing part 141 into place. This not only improves the stability of the motor 14 mounting structure, but also enables rapid pre-installation and improves installation efficiency.

[0027] In one specific implementation, the housing of the motor 14 has heat dissipation fins 144 formed on both the upper and lower sides, and the housing end of the driver 16 has multiple heat sinks 161 formed on its end. By dissipating heat from the electrical operating structure through the heat dissipation fins 144 and heat sinks 161, the electrical operating stability of the overall drive structure can be ensured.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments do not limit this utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A floating drive wheel module, characterized in that, include: Floating wheel frame; One end of the floating wheel frame is equipped with a caster wheel, and the other end is equipped with a drive assembly; The drive assembly includes: a flange mounted on the other end of the floating wheel frame, a motor fixed to the flange, a reducer fixed to the flange, a driver mounted on the motor, and a drive wheel mounted on the outer periphery of the reducer; The motor shaft of the motor is connected to the input end of the reducer; The floating wheel frame has a hinge shaft rotatably mounted inside its inner hole, and is hinged to the mounting chassis via the hinge shaft.

2. The floating drive wheel module according to claim 1, characterized in that, The omnidirectional wheel is detachably mounted to one end of the floating wheel frame via a nut.

3. The floating drive wheel module according to claim 1, characterized in that, An oil-free bearing is provided between the hinge shaft and the inner wall of the floating wheel frame.

4. The floating drive wheel module according to claim 3, characterized in that, Two oil-free bearings are provided between the hinge shaft and the inner wall of the floating wheel frame; The two oilless bearings are respectively installed at both ends of the inner hole of the floating wheel frame.

5. The floating drive wheel module according to claim 1, characterized in that, The hinge shaft has a connecting portion formed in the middle for engaging with the inner hole of the floating wheel frame; The portion of the hinge shaft located on both sides of the connecting part is a square mounting end; The mounting end has mounting holes for engaging with the mounting chassis to fix the hinge shaft.

6. The floating drive wheel module according to claim 1, characterized in that, The motor shaft of the motor is provided with a gear at its end, and the gear meshes with the input end of the reducer.

7. The floating drive wheel module according to claim 1, characterized in that, One side of the flange has a fixing plate for securing it to the other end of the floating wheel frame; The motor housing has a fixing part on one side and a mounting part on the other side; The fixing part and the mounting part are symmetrically arranged; The motor's mounting portion is fixed to the mounting plate; The driver is installed in the mounting part via an electrical connector.

8. The floating drive wheel module according to claim 7, characterized in that, The fixing plate has two locking protrusions for engaging the fixing part; The two snap-fit ​​protrusions define the mounting portion from the upper and lower sides of the mounting portion.

9. The floating drive wheel module according to claim 1, characterized in that, The motor housing has heat dissipation fins on both the upper and lower sides.

10. The floating drive wheel module according to claim 1, characterized in that, The drive housing has multiple heat sinks formed at its end.

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