A sealable steering wheel mechanism

Abstract

This utility model discloses a sealable steering wheel mechanism, relating to the field of steering wheel technology. It includes a connecting frame, a sealing cover, a sealing ring, a mounting plate, a steering device, and a drive wheel. The steering device includes a slewing bearing, a steering motor, and a steering gear. The slewing bearing includes an inner ring and an outer ring. The inner ring is fixed to the top of the mounting plate. The steering gear is mounted on the output shaft of the steering motor, which is fixed to the bottom of the mounting plate. The steering gear meshes with the outer ring on the top of the mounting plate. A connecting plate is fixed to the bottom of the connecting frame and connected to the top of the sealing cover. The sealing cover covers the mounting plate and connects to the outer ring of the slewing bearing inside the mounting plate. The sealing ring engages and seals at the connection between the sealing cover and the mounting plate. A fixed plate is connected to the bottom of the mounting plate, and the drive wheel is rotatably mounted on the fixed plate. By covering the mounting plate with the sealing cover and sealing it with the sealing ring, the slewing bearing and steering gear are enclosed, isolating them from sand and gravel in the external environment, protecting the gears, reducing wear, and improving working efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steering wheel technology, and in particular to a sealable steering wheel mechanism. Background Technology

[0002] Currently, the slewing bearing mechanism of existing steering wheels is usually directly exposed. Under harsh working conditions, it is prone to failures such as gear wear or jamming. For example, when a milling and grinding machine is working, the sand and gravel generated during grinding can enter the gear teeth gaps of the outer ring of the slewing bearing and the steering gear. When the steering gear meshes with the outer ring of the slewing bearing, it will cause severe gear wear or even jamming. Repair and replacement are time-consuming and labor-intensive, which seriously affects work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a sealable steering wheel mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A sealable steering wheel mechanism includes a connecting frame, a sealing cover, a sealing ring, a mounting plate, a steering device, and a drive wheel. The steering device includes a slewing bearing, a steering motor, and a steering gear. The slewing bearing includes an inner ring and an outer ring, which are rotatable relative to each other. The inner ring is fixed to the top of the mounting plate. The steering gear is mounted on the output shaft of the steering motor, which is fixed to the bottom of the mounting plate. The outer ring has gear teeth and meshes with the outer ring on the top of the mounting plate. A connecting plate is fixed to the bottom of the connecting frame and connected to the top of the sealing cover. The sealing cover covers the mounting plate and connects to the outer ring of the slewing bearing inside the mounting plate. The sealing ring engages and seals at the connection between the sealing cover and the mounting plate. Fixed plates are connected to both sides of the bottom of the mounting plate, and the drive wheel is rotatably mounted on the fixed plates.

[0006] Preferably, a circular inspection port is provided at the outer circumference of the top of the sealing cover, the inspection port is located on the movement track of the steering gear, and an inspection cover is connected to the inspection port.

[0007] Preferably, the bottom of the sealing cover extends downward to form an annular groove, and an inspection groove is provided on the annular groove, the position of which corresponds to the inspection port.

[0008] Preferably, the top of the sealing ring is fitted onto the annular groove, and the bottom is fitted onto the outer circle of the mounting plate.

[0009] Preferably, the sealing ring is a rubber ring.

[0010] Preferably, the space between the sealing cover and the mounting plate is filled with lubricating grease.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model features a sealing cover that covers the mounting plate and a rubber sealing ring that seals the cover and the mounting plate together, enclosing the slewing bearing and steering gear. This isolates the gears from sand and gravel in the external environment, protecting them and reducing wear. The cover is also filled with lubricating grease to lubricate the meshing outer ring of the slewing bearing and the steering gear. Furthermore, the sealing cover has inspection ports and slots for easy inspection, maintenance, and replacement of the steering gear, thus improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded view of the structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the structure of this utility model.

[0016] Figure Labels

[0017] 1. Connecting frame, 11. Connecting plate, 2. Sealing cover, 21. Inspection port, 22. Inspection groove, 23. Inspection cover, 24. Ring groove, 3. Sealing ring, 4. Mounting plate, 5. Steering motor, 6. Steering gear, 7. Slewing bearing, 71. Inner ring, 72. Outer ring, 8. Drive wheel. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] like Figure 1-3 As shown, a sealable steering wheel mechanism includes a connecting frame 1, a sealing cover 2, a sealing ring 3, a mounting plate 4, a steering device, and a drive wheel 8.

[0020] The steering device includes a slewing bearing 7, a steering motor 5, and a steering gear 6. The slewing bearing 7 includes an inner ring 71 and an outer ring 72, which can rotate relative to each other. The inner ring 71 is fixed to the top of the mounting plate 4. The output end of the steering motor 5 is connected to a reducer. The steering gear 6 is installed at the output end of the reducer. The steering motor 5 and the reducer are fixed to the bottom of the mounting plate 4. The steering gear 6 is located at the top of the mounting plate 4. The outer ring 72 has gear teeth, and the steering gear 6 meshes with the outer ring 72 at the top of the mounting plate 4.

[0021] The inner ring 71 of the slewing bearing 7 is fixedly connected to the mounting plate 4. The inner ring 71 and the mounting plate 4 can rotate relative to the outer ring 72. The outer ring 72 is fixed on the connecting plate 11 and the sealing cover 2. The steering motor 5 drives the steering gear 6 to rotate through the reducer. Since the steering gear 6 meshes with the gear teeth of the outer ring 72, and the steering motor 5 and the reducer are fixed at the bottom of the mounting plate 4, the steering gear 6 will revolve around the outer ring 72 and drive the mounting plate 4 and the inner ring 71 to rotate, thereby realizing the steering of the drive wheel 8 at the bottom of the mounting plate 4.

[0022] A connecting plate 11 is fixed at the bottom of the connecting frame 1. The connecting plate 11 is connected to the top of the sealing cover 2. The sealing cover 2 covers the mounting plate 4 and is connected to the outer ring 72 of the slewing bearing 7 inside the mounting plate 4. The sealing ring 3 is engaged and sealed at the connection between the sealing cover 2 and the mounting plate 4.

[0023] A circular inspection port 21 is provided at the outer circle of the top of the sealing cover 2. The inspection port 21 is located on the movement track of the steering gear 6. An inspection cover 23 is connected to the inspection port 21. The bottom of the sealing cover 2 extends downward to form an annular groove 24. An inspection groove 22 is provided on the annular groove 24. The position of the inspection groove 22 corresponds vertically to the position of the inspection port 21. The top of the sealing ring 3 is fitted on the annular groove 24 and covers the inspection groove 22. The bottom is fitted on the outer circle of the mounting plate 4, thereby forming a sealing effect. The sealing ring 3 is a rubber ring. Lubricating grease is filled between the sealing cover 2 and the mounting plate 4 to lubricate the outer ring 72 of the meshing slewing bearing 7 and the steering gear 6.

[0024] When maintenance is required, open the inspection cover 23 and move the steering gear 6 to the inspection port 21 for observation. When the steering gear 6 needs to be replaced, remove the sealing ring 3 to expose the inspection groove 22. Remove the steering gear 6 from the output shaft of the reducer through the inspection groove 22 and take it out from the inspection port 21 for replacement.

[0025] Mounting plate 4 has fixed plates connected to both sides of its bottom. Drive wheel 8 is rotatably mounted on the two fixed plates. Drive motor, reducer and differential are installed between the two fixed plates. Drive motor is connected to reducer and reducer is connected to differential drive shaft. Drive wheel 8 is connected to differential output shaft through two fixed brackets.

[0026] This utility model features a sealing cover 2 covering the mounting plate 4, with a rubber sealing ring 3 sealing the sealing cover 2 and the mounting plate 4. This encloses the slewing bearing 7 and the steering gear 6, isolating them from sand and gravel in the external environment and protecting the gears from wear. Furthermore, the interior is filled with lubricating grease to lubricate the meshing outer ring 72 of the slewing bearing 7 and the steering gear 6. The sealing cover 2 also features an inspection port 21 and an inspection groove 22 for easy inspection, maintenance, and replacement of the steering gear 6, thus improving work efficiency.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A sealable tiller mechanism characterized by: The device includes a connecting frame, a sealing cover, a sealing ring, a mounting plate, a steering mechanism, and a drive wheel. The steering mechanism includes a slewing bearing, a steering motor, and a steering gear. The slewing bearing includes an inner ring and an outer ring, which are rotatable relative to each other. The inner ring is fixed to the top of the mounting plate. The steering gear is mounted on the output shaft of the steering motor, which is fixed to the bottom of the mounting plate. The outer ring has gear teeth and meshes with the outer ring on the top of the mounting plate. A connecting plate is fixed to the bottom of the connecting frame and connected to the top of the sealing cover. The sealing cover covers the mounting plate and connects to the outer ring of the slewing bearing inside the mounting plate. The sealing ring engages and seals at the connection between the sealing cover and the mounting plate. Fixed plates are connected to both sides of the bottom of the mounting plate, and the drive wheel is rotatably mounted on the fixed plates.

2. The sealable steering wheel mechanism according to claim 1, characterized in that: A circular inspection port is provided at the outer circumference of the top of the sealing cover. The inspection port is located on the movement track of the steering gear, and an inspection cover is connected to the inspection port.

3. The sealable steering wheel mechanism according to claim 2, characterized in that: The bottom of the sealing cover extends downward to form an annular groove, and an inspection groove is provided on the annular groove, the position of which corresponds to the inspection port.

4. A sealable steering wheel mechanism according to claim 3, characterized in that: The top of the sealing ring is fitted onto the annular groove, and the bottom is fitted onto the outer circle of the mounting plate.

5. A sealable steering wheel mechanism according to claim 1, characterized in that: The sealing ring is a rubber ring.

6. A sealable steering wheel mechanism according to claim 1, characterized in that: The space between the sealing cover and the mounting plate is filled with lubricating grease.

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