CN216783615U

CN216783615U - Steering structure of mower

Info

Publication number: CN216783615U
Application number: CN202220159930.1U
Authority: CN
Inventors: 江锦标
Original assignee: ZHEJIANG CHANGJIANG MACHINERY CO Ltd
Current assignee: ZHEJIANG CHANGJIANG MACHINERY CO Ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-06-21
Anticipated expiration: 2032-01-20

Abstract

The utility model provides a steering structure of a mower, and belongs to the technical field of garden machinery. It has solved the current lawn mower turn to the structure complicated, manufacturing cost is high and turn to the problem reliable and stable enough. This structure that turns to of lawn mower, which comprises a bracket, the middle part of support even has output gear, be equipped with the front axle roof beam on the support, the axletree is inserted at the both ends of front axle roof beam and is equipped with the axletree, the wheel has been linked firmly in the axletree axially, the pinion rack that is equipped with the level setting on the support and pinion rack can be relative the horizontal reciprocating motion of support, one side of pinion rack is the rack portion that the level set up, rack portion meshes with output gear mutually, all be equipped with pull rod and swing arm between the both ends of pinion rack and the corresponding gear shaft, the one end of pull rod is articulated mutually between with the pinion rack, the other end of pull rod is articulated mutually with the one end of swing arm, the other end of swing arm links firmly mutually with the upper end of corresponding axletree. The steering structure of the mower has the advantages of simple structure, stable and reliable steering and lower manufacturing cost.

Description

Steering structure of mower

Technical Field

The utility model belongs to the technical field of garden machinery, relates to a mower, and particularly relates to a steering structure of the mower.

Background

The mower is a mechanical tool for trimming lawns, vegetation and the like, and is mainly applied to various garden landscape designs and lawn ground maintenance conditions, the steering mechanism of the prior mower mostly adopts a mode of controlling the rotation angle of a steering wheel to change the direction of the mower, the mode causes overlarge steering radius and inconvenient steering, and the guide wheel of the prior mower mostly adopts narrower wheels, so that the pressure of the wheels to the turf is larger, and the turf is easily damaged by overlarge pressure.

The steering mechanism (application number: 201921808982.1) of the mower disclosed in the Chinese patent document comprises a mower main body, a storage battery, a motor and a switch button, wherein the storage battery is installed inside the mower main body, a buffer rod is installed below the mower main body, a chassis is installed below the buffer rod, the motor is fixed at the bottom of the chassis, and two groups of contact disc shells are welded on the left side and the right side of the lower portion of the chassis respectively. But the steering mechanism of the mower has the disadvantages of complex structure, high manufacturing cost and unstable and unreliable steering.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a steering structure of a mower, which has a simple structure, is stable and reliable in steering and is low in manufacturing cost.

The purpose of the utility model can be realized by the following technical scheme: the steering structure of lawn mower, which comprises a bracket, the middle part axial of support link firmly output gear, the support on be equipped with the front axle roof beam, the both ends of front axle roof beam insert the axletree that is equipped with vertical setting, the axletree on the axial link firmly the wheel, its characterized in that, the support on be equipped with the pinion rack that the level set up just the pinion rack can be relative the horizontal reciprocating motion of support level, one side of pinion rack be the rack portion that the level set up, rack portion with output gear mesh mutually, the both ends of pinion rack and the gear shaft that corresponds between all be equipped with pull rod and swing arm, the pull rod one end with the pinion rack between articulated mutually, the pull rod the other end with the one end of swing arm articulated mutually, the other end of swing arm link firmly mutually with the upper end of the axletree that corresponds.

The lawn mower includes steering wheel and steering column, the upper end of steering column links to each other with the steering wheel, the lower extreme of steering column links to each other with output gear, the steering column can drive output gear and rotate, this lawn mower turn to the structure at the during operation, drive output gear through the steering column and rotate, meshing through the rack portion of output gear and pinion rack, drive pinion rack horizontal migration, the pinion rack passes through the pull rod and drives swing arm horizontal hunting, thereby drive axletree horizontal hunting, realize turning to of lawn mower, and has the advantages of simple structure, turn to reliable and stable and make into the cost lower.

In the steering structure of the mower, a joint bearing is arranged between one end of the pull rod and the toothed plate. By adopting the arrangement, the pull rod can rotate universally relative to the toothed plate, so that the mower can smoothly rotate on uneven ground, and the mower has the advantage of flexible steering.

In the steering structure of the mower, the support is fixedly connected with a front shaft bracket, the front shaft beam transversely penetrates through the front shaft bracket, cylindrical limiting convex bodies are horizontally arranged at the front end and the rear end of the front shaft beam, the front shaft bracket and the support are provided with coaxially arranged mounting holes, and the limiting convex bodies are inserted in the mounting holes. The limiting convex body is inserted into the mounting hole, so that the front axle beam can swing around the axis of the limiting convex body relative to the front axle frame, the two ends of the front axle beam swing up and down, the mower can smoothly swing and steer on the uneven bottom surface, and the mower has the advantage of stable and smooth steering.

In the above turning structure of the mower, the toothed plate is integrally formed by punching. By adopting the arrangement, the device has the advantage of low manufacturing cost.

In the steering structure of the mower, the bracket is provided with a guide groove horizontally and transversely arranged, the toothed plate is provided with a guide bearing, the inner ring of the guide bearing is fixedly connected with the toothed plate, and the outer ring of the guide bearing is embedded in the guide groove. Inlay in the guide way through guide bearing and make the pinion rack smoothly remove and have better direction effect.

In the steering structure of the mower, the bracket is provided with two guide grooves which are arranged in parallel, the two guide grooves are arranged up and down, and the toothed plate is provided with two guide bearings and two outer rings of the guide bearings are embedded in the corresponding guide grooves. By adopting the arrangement, the toothed plate has good movement guidance and high structural stability, and the service life is prolonged.

In the steering structure of the mower, the limiting convex body is formed by stamping.

In the above-mentioned steering structure of the lawn mower, the output gear includes a cylindrical body, an outer side wall of a lower end of the body has an outer tooth portion, the outer tooth portion is engaged with the rack portion, and an inner side wall of the body is provided with a spline groove. The lower extreme of direction post is equipped with the spline, makes direction post and output gear circumference link firmly mutually through the meshing of spline and spline groove, drives output gear when the steering wheel drives the direction post and rotates, has simple structure and the reliable advantage of transmission.

In the above turning structure of the mower, the side portion of the body is provided with a through slot for inserting the clamp spring. Be equipped with ring groove on the lateral wall of direction post, when the lower extreme of direction post inserted this internal, the jump ring inserted the slot and inserted ring groove in, made the direction post link firmly with the output gear axial mutually, had simple structure, the location is reliable and the comparatively convenient advantage of dismouting.

Compared with the prior art, this lawn mower turn to structure has following advantage:

1. the output gear is driven to rotate through the direction column, the toothed plate is driven to horizontally move through the meshing of the output gear and the rack part of the toothed plate, the toothed plate drives the swing arm to swing left and right through the pull rod, so that the wheel axle is driven to swing left and right, the steering of the mower is realized, and the mower has the advantages of simple structure, stable and reliable steering and lower manufacturing cost;

2. a joint bearing is arranged between one end of the pull rod and the toothed plate, so that the pull rod can rotate in a universal direction relative to the toothed plate, the mower can smoothly rotate on uneven ground, and the mower has the advantage of flexible steering;

3. the limiting convex body is inserted into the mounting hole, so that the front axle beam can swing around the axis of the limiting convex body relative to the front axle frame, the two ends of the front axle beam swing up and down, the mower can smoothly swing and steer on the uneven bottom surface, and the mower has the advantage of stable and smooth steering;

4. two the guide way be about setting up, the outer lane that is equipped with two guide bearings on the pinion rack and two guide bearings inlays in the guide way that corresponds, makes the removal guidance quality of pinion rack good and structural stability is high, has improved life.

Drawings

Fig. 1 is a perspective view of a turning structure of the present lawnmower.

Fig. 2 is another perspective view of the turning structure of the mower.

Fig. 3 is a perspective view of an output gear of the steering structure of the present lawnmower.

In the figure, 1, a bracket; 1a, a guide groove; 2. an output gear; 2a, a body; 2b, an external tooth portion; 2c, spline grooves; 2d, inserting a slot; 3. a front axle beam; 3a, a limiting convex body; 4. a wheel shaft; 5. a wheel; 6. a toothed plate; 6a, a rack portion; 7. a pull rod; 8. swinging arms; 9. a knuckle bearing; 10. a front axle bracket; 10a, mounting holes; 11. a guide bearing; 12. and a clamp spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 3, the steering structure of lawn mower, including support 1, the middle part axial of support 1 has linked firmly output gear 2, be equipped with front axle beam 3 on the support 1, wheel shaft 4 that is equipped with vertical setting is inserted at front axle beam 3's both ends, wheel 5 has linked firmly axially on the wheel shaft 4, the pinion rack 6 that is equipped with the level setting on the support 1 and pinion rack 6 can be relative to the horizontal transverse reciprocating motion of support 1, pinion rack 6 adopts the rack portion 6a that punching press integrated into one piece structure and one side of pinion rack 6 set up for the level, rack portion 6a meshes with output gear 2 mutually, all be equipped with pull rod 7 and swing arm 8 between the both ends of pinion rack 6 and the corresponding gear shaft, it is articulated mutually through joint bearing 9 between one end of pull rod 7 and the pinion rack 6, the other end of pull rod 7 is articulated mutually with the one end of swing arm 8, the other end of swing arm 8 links firmly with the upper end of corresponding wheel shaft 4 mutually.

The support 1 is fixedly connected with a front axle bracket 10, the front axle beam 3 transversely penetrates through the front axle bracket 10, the front end and the rear end of the front axle beam 3 are horizontally provided with cylindrical limiting convex bodies 3a, the limiting convex bodies 3a are of punch forming structures, the front axle bracket 10 and the support 1 are provided with mounting holes 10a which are coaxially arranged, and the limiting convex bodies 3a are inserted into the mounting holes 10 a.

Be equipped with the horizontal guide way 1a that sets up of two levels on support 1, two guide ways 1a set up from top to bottom, are equipped with two guide bearing 11 on the pinion rack 6, and guide bearing 11's inner circle links firmly with pinion rack 6 mutually, and guide bearing 11's outer lane inlays in the guide way 1a that corresponds, makes pinion rack 6 can smoothly move and have better direction effect.

The output gear 2 includes a cylindrical body 2a, an outer side wall of a lower end of the body 2a has an outer tooth portion 2b, the outer tooth portion 2b is meshed with the rack portion 6a, an inner side wall of the body 2a is provided with a spline groove 2c, a side portion of the body 2a is provided with a through slot 2d, and the slot 2d is used for inserting the snap spring 12.

The lawn mower comprises a steering wheel and a steering column, wherein the upper end of the steering column is connected with the steering wheel, a spline is arranged at the lower end of the steering column, the steering column is circumferentially and fixedly connected with the output gear 2 through the engagement of the spline and the spline groove 2c, a spring is inserted into the slot 2d and inserted into the annular clamping groove, the steering column is axially and fixedly connected with the output gear 2, and the steering column can drive the output gear 2 to rotate.

This lawn mower turn to structure at the during operation, drive output gear 2 through the direction post and rotate, meshing through rack portion 6a of output gear 2 and pinion rack 6, drive pinion rack 6 horizontal migration, pinion rack 6 drives swing arm 8 horizontal hunting through pull rod 7, thereby drive axletree 4 horizontal hunting, front axle beam 3 can be relative front axle frame 10 around the axis swing of spacing convex body 3a simultaneously, make front axle beam 3's both ends can the luffing motion, make this lawn mower can smoothly swing and turn to in the bottom surface of unevenness, it is stable smooth and easy to have to turn to, moreover, the steam generator is simple in structure, turn to reliable and stable and make into this lower advantage of cost. A joint bearing 9 is arranged between one end of the pull rod 7 and the toothed plate 6, so that the pull rod 7 can rotate universally relative to the toothed plate 6, the mower can smoothly rotate on uneven ground, and the mower has the advantage of flexible steering.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the terms of the bracket 1, the guide groove 1a, the output gear 2, the body 2a, the external tooth portion 2b, the spline groove 2c, the insertion groove 2d, the front axle beam 3, the limit projection 3a, the wheel axle 4, the wheel 5, the toothed plate 6, the rack portion 6a, the tie rod 7, the swing arm 8, the knuckle bearing 9, the front axle bracket 10, the mounting hole 10a, the guide bearing 11, the snap spring 12, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to the spirit of the present invention.

Claims

1. The steering structure of the mower comprises a support (1), wherein an output gear (2) is fixedly connected to the axial direction of the middle part of the support (1), a front axle beam (3) is arranged on the support (1), wheel shafts (4) which are vertically arranged are inserted at the two ends of the front axle beam (3), wheels (5) are fixedly connected to the wheel shafts (4) in the axial direction, the steering structure is characterized in that a toothed plate (6) which is horizontally arranged is arranged on the support (1), the toothed plate (6) can be opposite to the horizontal reciprocating movement of the support (1), one side of the toothed plate (6) is a rack part (6a) which is horizontally arranged, the rack part (6a) is meshed with the output gear (2), pull rods (7) and swing arms (8) are arranged between the two ends of the toothed plate (6) and corresponding gear shafts, one end of each pull rod (7) is hinged with the toothed plate (6), the other end of the pull rod (7) is hinged with one end of the swing arm (8), and the other end of the swing arm (8) is fixedly connected with the upper end of the corresponding wheel shaft (4).

2. The steering structure of a mower according to claim 1, wherein a knuckle bearing (9) is provided between one end of the tie rod (7) and the toothed plate (6).

3. The turning structure of the mower according to claim 1, wherein the support frame (1) is fixedly connected with a front axle bracket (10), the front axle beam (3) transversely penetrates through the front axle bracket (10), the front end and the rear end of the front axle beam (3) are horizontally provided with cylindrical limiting convex bodies (3a), the front axle bracket (10) and the support frame (1) are provided with coaxially arranged mounting holes (10a), and the limiting convex bodies (3a) are inserted in the mounting holes (10 a).

4. The turning structure of the mower according to claim 1, 2 or 3, characterized in that the toothed plate (6) is integrally formed by punching.

5. The turning structure of the mower according to claim 1, 2 or 3, wherein the bracket (1) is provided with a horizontal and transverse guide groove (1a), the toothed plate (6) is provided with a guide bearing (11), an inner ring of the guide bearing (11) is fixedly connected with the toothed plate (6), and an outer ring of the guide bearing (11) is embedded in the guide groove (1 a).

6. The turning structure of a mower according to claim 1, 2 or 3, wherein the bracket (1) is provided with two parallel guide grooves (1a), the two guide grooves (1a) are vertically arranged, the toothed plate (6) is provided with two guide bearings (11), and outer rings of the two guide bearings (11) are embedded in the corresponding guide grooves (1 a).

7. The turning structure of a mower according to claim 3, wherein said restricting protrusion (3a) is formed by press molding.

8. The steering structure of a lawnmower according to claim 1, 2 or 3, wherein the output gear (2) comprises a cylindrical body (2a), the outer side wall of the lower end of the body (2a) has outer teeth (2b) and the outer teeth (2b) mesh with the rack (6a), and the inner side wall of the body (2a) is provided with spline grooves (2 c).

9. The turning structure of a mower according to claim 8, wherein the side of the body (2a) is provided with a through slot (2d) and the slot (2d) is used for inserting the clamp spring (12).