CN218986733U

CN218986733U - Simple steering column structure of riding hedge trimmer

Info

Publication number: CN218986733U
Application number: CN202222827931.1U
Authority: CN
Inventors: 田锡生
Original assignee: Jiangsu World Plant Protecting Machinery Co Ltd
Current assignee: Jiangsu World Plant Protecting Machinery Co Ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-05-09
Anticipated expiration: 2032-10-26

Abstract

The utility model provides a simple steering column structure of a riding hedge trimmer, which comprises the following components: the steering column assembly is arranged in the console of the trimmer and is used for transmission connection between the steering wheel assembly and a wheel steering mechanism at the bottom of the frame; the steering column assembly includes: the first rotating shaft is vertically arranged, and the top end of the first rotating shaft is hinged with the rotating shaft of the steering wheel assembly through a universal ball head assembly fixedly arranged; the second rotating shaft is arranged along the axial direction of the first rotating shaft and positioned below the first rotating shaft, and a gear is fixedly arranged at the bottom end and is in transmission connection with a steering fluted disc of the wheel steering mechanism through the gear; the sleeve is connected between the first rotating shaft and the second rotating shaft, and two ends of the sleeve are respectively sleeved with the first rotating shaft and the second rotating shaft and are fixedly connected with the pin shaft in a matched mode through holes. The utility model has the advantages of convenient assembly, disassembly and maintenance, high safety coefficient of the whole machine for complex working condition operation and improved utilization rate of parts.

Description

Simple steering column structure of riding hedge trimmer

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a simple steering column structure of a riding hedge trimmer.

Background

As is well known, with the emphasis of the state on environmental protection and urban greening, the demands of people on urban greening maintenance and greening appearance are becoming stronger, and the appearance of riding hedgecutters gives hedge pruning more efficient, finer and more specialized operation and maintenance. The market products are used for field tracking and user visit information arrangement, as the driving hedge trimmer is always positioned in front of the side of the machine when in operation, the horizontal lateral force and road surface bumpy caused by unsteady vibration excitation in the trimming process can lead a driver to continuously correct the steering wheel when the machine is operated so as to ensure the hedge trimming quality and the operation efficiency, the working utilization level of the steering column is increased rapidly, early damage is caused, the gap between the internal teeth and the gear pair is worn abnormally, the idle stroke is unstable, the trimming effect can not meet the expected requirement, the operation efficiency is reduced, the labor intensity of the driver is high, and the maintenance personnel is time-consuming and labor-consuming when the steering column is replaced.

In view of this, there is a need for improvements in steering columns in the prior art to address the above-described problems.

Disclosure of Invention

The utility model aims to disclose a simple steering column structure of a riding hedge trimmer, which aims to solve the technical problems, ensure that a gear at the bottom of a steering column is stably matched with a wheel steering mechanism, realize stable steering of the trimmer, reduce the replacement rate of parts and improve the installation and disassembly and maintenance efficiency of the steering column.

In order to achieve the above object, the present utility model provides a simple steering structure of a riding hedge trimmer, comprising:

the steering column assembly is arranged in the console of the trimmer and is used for transmission connection between the steering wheel assembly and a wheel steering mechanism at the bottom of the frame;

the steering column assembly includes:

the first rotating shaft is arranged along the vertical direction, and the top end of the first rotating shaft is hinged with the rotating shaft of the steering wheel assembly through a universal ball head assembly fixedly arranged;

the second rotating shaft is arranged along the axial direction of the first rotating shaft and positioned below the first rotating shaft, and a gear is fixedly arranged at the bottom end and is in transmission connection with a steering fluted disc of the wheel steering mechanism through the gear;

the sleeve is connected between the first rotating shaft and the second rotating shaft, the inner diameter of a pipe orifice of the sleeve is larger than the outer diameters of the first rotating shaft and the second rotating shaft, and two ends of the sleeve are respectively sleeved with the first rotating shaft and the second rotating shaft and are fixedly connected with the pin shaft in a matched manner through holes;

the steering column assembly comprises a steering column assembly, a steering table, a steering column assembly and a rotating support piece, wherein the steering column assembly is fixedly arranged in the steering table, and is in rotating fit with the steering column assembly.

As a further improvement of the utility model, two ends of the sleeve are respectively in sliding fit with the first rotating shaft and the second rotating shaft.

As a further improvement of the utility model, the sleeve is a steel tube.

As a further improvement of the utility model, a first pin hole and a second pin hole which are completely communicated are formed in the connecting section of the sleeve and the first rotating shaft along the radial direction, the first pin hole and the second pin hole are arranged at different heights in a staggered way, and the axes of the holes are arranged at 90 degrees;

the sleeve and the connecting section of the second rotating shaft are provided with a third pin hole and a fourth pin hole which are completely communicated in the radial direction, the third pin hole and the fourth pin hole are arranged at different heights in a staggered mode, and the axes of the holes are arranged at 90 degrees.

As a further improvement of the present utility model, the rotary support includes: the first bearing seat and the second bearing seat are respectively arranged at two ends of the steering column assembly, the first bearing seat is in running fit with the first rotating shaft, and the second bearing seat is in running fit with the second rotating shaft.

As a further improvement of the utility model, the pin is an elastic cylindrical pin.

Compared with the prior art, the utility model has the beneficial effects that:

(1) A simple steering column structure of a riding hedge trimmer is split, adopts a mode that a first rotating shaft, a second rotating shaft and a sleeve are sleeved, is connected between a steering wheel assembly and a wheel steering mechanism at the bottom of a frame, is fixedly connected with a pin shaft through a hole in a matched mode, and is high in positioning precision of a steering fluted disc of a gear and the wheel steering mechanism during installation, convenient to detach and install, and accessories are replaced, so that the recycling rate of undamaged parts is improved.

(2) Two dislocation arrangement that link up completely is offered at different co-altitude through sleeve pipe and pivot section of meeting, and the hole axis is the pinhole that 90 degrees were arranged, through elasticity cylindric lock and pinhole cooperation, has effectively reduced the relative displacement of round pin axle and pinhole that unsteady vibration excitation led to in the trimming machine construction process, has reduced the drop and the failure probability of round pin axle, has greatly promoted the security of machine, reliability.

Drawings

FIG. 1 is a schematic view of a simple steering column structure of a riding hedge trimmer of the present utility model;

FIG. 2 is a schematic view of a steering column assembly in a simple steering column structure of a riding hedge trimmer according to the present utility model.

In the figure: 1. a console; 2. a steering wheel assembly; 3. a frame; 4. a wheel steering mechanism; 5. a steering column assembly; 21. a rotating shaft; 41. a steering fluted disc; 51. a first rotating shaft; 52. a second rotating shaft; 53. a sleeve; 61. a first bearing seat; 62. a second bearing seat; 501. a first pin hole; 502. a second pin hole; 503. a third pin hole; 504. a fourth pin hole; 510. a universal ball head assembly; 520. a gear.

Detailed Description

The present utility model will be described in detail below with reference to the embodiments shown in the drawings, but it should be understood that the embodiments are not limited to the present utility model, and functional, method, or structural equivalents and alternatives according to the embodiments are within the scope of protection of the present utility model by those skilled in the art.

Referring to fig. 1 to 2, there is shown an embodiment of a simple steering column structure of a riding hedge trimmer according to the present utility model.

A simple steering structure of a riding hedge trimmer, comprising: the steering column assembly 5 is arranged inside the console 1 of the trimmer and is used for transmission connection between the steering wheel assembly 2 and the wheel steering mechanism 4 at the bottom of the frame 3; the steering column assembly 5 includes: the first rotating shaft 51 is arranged along the vertical direction, and the top end of the first rotating shaft is hinged with the rotating shaft 21 of the steering wheel assembly 2 through a universal ball head assembly 510 fixedly arranged; the second rotating shaft 52 is arranged along the axial direction of the first rotating shaft 51 and positioned below the first rotating shaft 51, and the bottom end of the second rotating shaft is fixedly provided with a gear 520 and is in transmission connection with the steering fluted disc 41 of the wheel steering mechanism 4 through the gear 520; the sleeve 53 is connected between the first rotating shaft 51 and the second rotating shaft 52, the inner diameter of a pipe orifice of the sleeve 53 is larger than the outer diameters of the first rotating shaft 51 and the second rotating shaft 52, and two ends of the sleeve 53 are respectively sleeved with the first rotating shaft 51 and the second rotating shaft 52 and are fixedly connected with the pin shaft in a matched manner through holes; the steering column assembly further comprises a rotary supporting piece which is fixedly arranged in the console 1 and is in running fit with the steering column assembly 5. The sleeve 53 has two ends slidably engaged with the first shaft 51 and the second shaft 52, respectively. The sleeve 53 is a steel pipe. The connecting section of the sleeve 53 and the first rotating shaft 51 is provided with a first pin hole 501 and a second pin hole 502 which are completely communicated in the radial direction, the first pin hole 501 and the second pin hole 502 are arranged at different heights in a staggered way, and the hole axes are arranged at 90 degrees; the connecting section of the sleeve 53 and the second rotating shaft 52 is provided with a third pin hole 503 and a fourth pin hole 504 which are completely communicated in the radial direction, the third pin hole 503 and the fourth pin hole 504 are arranged at different heights in a staggered way, and the hole axes are arranged at 90 degrees. Through the arrangement mode that the two pin shafts are staggered by 90 degrees, the strength of the split assembly part shaft is ensured, meanwhile, the falling-off and failure probability of the pin shafts and the pin shafts after displacement caused by unsteady vibration excitation in the trimming process is effectively reduced, the safety of the machine is greatly improved, and the design is reliable.

Specifically, the rotary support includes: the first bearing housing 61 and the second bearing housing 62 are disposed at both ends of the steering column assembly 5, respectively, the first bearing housing 61 is in rotational engagement with the first rotating shaft 51, and the second bearing housing 62 is in rotational engagement with the second rotating shaft 21. When the damaged part of the steering column assembly 5 is maintained and replaced, the first bearing seat 61 and the second bearing seat 62 do not need to be disassembled, only the current disassembly is needed, and when the assembly is repeatedly carried out, the positioning precision of the gear 520 pair tooth space is high, the maintenance degree is excellent, undamaged parts are repeatedly utilized, and the pin roll is an elastic cylindrical pin.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A simple steering column structure of a riding hedge trimmer, comprising:

the steering column assembly includes:

2. A simple steering column structure of a riding hedge trimmer according to claim 1 wherein the sleeve is slidably fitted at each end thereof with the first and second shafts.

3. A simple steering column structure of a riding hedge trimmer according to claim 1 wherein the sleeve is a steel tube.

4. The simple steering column structure of the riding hedge trimmer according to claim 1, wherein a first pin hole and a second pin hole which are completely communicated are formed in the connecting section of the sleeve and the first rotating shaft along the radial direction, the first pin hole and the second pin hole are arranged at different heights in a staggered mode, and the axes of the holes are arranged at 90 degrees;

5. A simple steering column structure of a riding hedge trimmer according to claim 1 wherein the rotary support comprises: the first bearing seat and the second bearing seat are respectively arranged at two ends of the steering column assembly, the first bearing seat is in running fit with the first rotating shaft, and the second bearing seat is in running fit with the second rotating shaft.

6. A simple steering column structure of a riding hedge trimmer according to claim 1 wherein the pin is an elastic cylindrical pin.