CN215904593U

CN215904593U - Steering device and weeding machine

Info

Publication number: CN215904593U
Application number: CN202122370952.0U
Authority: CN
Inventors: 何岩; 束力
Original assignee: Jiangsu World Plant Protecting Machinery Co Ltd
Current assignee: Jiangsu World Plant Protecting Machinery Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-02-25
Anticipated expiration: 2031-09-29

Abstract

The utility model relates to the technical field of mechanical engineering, in particular to a steering device and a weeding machine, wherein the steering device comprises: a driving member fixedly assembled; the telescopic end of the driving piece is connected with the linkage piece; the two groups of connecting rod assemblies are respectively in hinged fit with the two ends of the linkage piece, the connecting rod assemblies are far away from one ends of the linkage pieces and the walking wheels, and the technical problem that in the prior art, the mower is easy to turn over due to the fact that the mower turns to the action through the speed difference of the wheels on the two sides is solved.

Description

Steering device and weeding machine

Technical Field

The utility model relates to the technical field of mechanical engineering, in particular to a steering device and a weeding machine.

Background

Along with the annual increase of the domestic greening area and the promotion of the mechanization degree of an orchard, the demand of a small-sized mower in the domestic market is also increased year by year, the mower is a mechanical tool for trimming lawns, vegetations and the like, and consists of a cutter head, an engine, traveling wheels, a traveling mechanism, blades, a collision mechanism and a control part, particularly, a wheel type mower is more flexible relative to a chain type mower, so the wheel type mower is more favored by consumers, the wheel type mower in the prior art completes steering through differential speed of wheels at two sides, namely, the steering action is completed through differential speed of the wheels at two sides, and the mode has the following problems: because the speeds of the wheels on the two sides are different, the mower is easy to turn over laterally; in addition, the loads of the wheels and the axles on the two sides are large and unequal, and the service lives of the wheels and the axles of the mower are seriously influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that in the prior art, the mower is easy to turn over due to the fact that the mower turns to move through the speed difference of the wheels on the two sides, the utility model provides a liquid supply device and a mouth rinsing machine, and the technical problem is solved. The technical scheme of the utility model is as follows:

a steering device comprising: a driving member fixedly assembled; the telescopic end of the driving piece is connected with the linkage piece; and the two groups of connecting rod assemblies are respectively in hinged fit with two ends of the linkage piece, and one end of each connecting rod assembly, which is far away from the linkage piece, is fixedly connected with the travelling wheel.

According to one embodiment of the utility model, the driving piece drives the two road wheels to synchronously perform steering action by virtue of the linkage piece.

According to one embodiment of the utility model, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is in hinged fit with one end of the linkage piece, the other end of the first connecting rod is hinged with one end of the second connecting rod, and the other end of the second connecting rod is fixedly connected with the traveling wheel through a connecting assembly.

According to one embodiment of the utility model, the connection assembly comprises: one end of the fastener is fixedly connected with the second connecting rod; the base plate, the benchmark portion of the said base plate is fixedly connected with another end of the said fastener; the adapter passes through the mounting channel on the substrate and is fixedly connected with the substrate by virtue of the rotation stopping piece.

According to one embodiment of the utility model, the road wheel is provided with a texture on the periphery.

A weeding machine adopts the steering device.

According to one embodiment of the utility model, two sets of steering devices are included, which are respectively arranged at both ends of the weeding machine.

According to one embodiment of the utility model, the device further comprises a base frame, the driving piece is fixedly assembled on the base frame, and the driving piece is arranged along the length direction of the base frame.

According to one embodiment of the utility model, both ends of the chassis are provided with shields.

According to one embodiment of the utility model, the system further comprises a wireless sensing module, and the wireless sensing module receives signals of the controller.

Based on the technical scheme, the utility model can realize the following technical effects:

1. the flexible end of driving piece of this application is connected with the linkage, two sets of link assembly cooperate with the both ends of linkage are articulated respectively, link assembly keeps away from the one end and the walking wheel fixed connection of linkage, the driving piece provides effort and promotes linkage linear motion, the motion area of linkage deflects the link assembly at its both ends, thereby make the walking wheel follow to deflect in order to realize turning to of walking wheel, make the wheel speed difference of both sides accomplish the action of turning to through the motor control on the wheel among the prior art, lead to the lawn mower to turn on one's side easily, this application drives the walking wheel with the help of linkage and link assembly through the driving piece and deflects, the speed difference of the walking wheel of assurance both sides is very little, thereby avoided walking wheel and the device on it to take place to turn on one's side.

2. The second connecting rod of this application is with the help of fastener and base plate fixed connection, and the base plate is at the adaptor fixed connection who is connected with the walking wheel, and through the benchmark characteristic of base plate, the link assembly that can guarantee linkage member both ends is located same height to the assembly precision who turns to the device has been guaranteed.

3. The utility model provides a be formed with the line in the periphery of walking wheel, when driving piece road wheel deflection, the line on the walking wheel was great with the frictional force between the ground like this, and the walking wheel is great to link assembly's resistance promptly, and the deflection angle scope of walking wheel is bigger under the thrust effect of this resistance and driving piece.

4. The weeder of this embodiment includes that two sets of turn to the device, and two sets of devices that turn to set up respectively at the both ends of weeder, and two sets of front and back two sets of walking wheels that turn to the device and can control the weeder respectively to realize the action that turns to of weeder.

5. The utility model provides a both ends of weeder's chassis all are provided with the shielding piece, still are provided with wireless response module on the weeder simultaneously, and wireless response module receives the signal of controller, and turning to and carrying out the cutting action to rough grass of accessible controller control weeder like this.

Drawings

FIG. 1 is a schematic view of a construction of a weeding machine;

FIG. 2 is a schematic view of the steering apparatus;

in the figure:

a drive member; 11-a push rod; 2-a linkage; 3-a linkage assembly; 31-a first link; 32-a second link; 4-travelling wheels; 5-a connecting assembly; 51-a fastener; 52-a substrate; 521-a reference part; 53-an adaptor; 6-a chassis; 61-a support bar; 62-shield.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1-2, the steering apparatus of the present embodiment includes a driving member 1, a linkage member 2 and two sets of link assemblies 3, the driving member 1 is fixedly assembled, the telescopic end of the driving member 1 is connected to the linkage member 2, the two sets of link assemblies 3 are respectively hinged to and matched with two ends of the linkage member 2, and one end of the link assembly 3 away from the linkage member 2 is fixedly connected to the traveling wheel 4.

The driving piece 1 of this embodiment provides effort drive linkage 2 and link assembly 3 and deflects to drive the 4 deflections of walking wheel of both sides, and then guarantee that the speed difference of the 4 walking wheels of both sides is very little almost, so solved among the prior art make the wheel speed difference of both sides accomplish the action of turning to through the motor control on the wheel, lead to the problem that the lawn mower turned on one's side easily.

The driving part 1 of this embodiment drives the motion of linkage part 2, specifically, the flexible end of driving part 1 is connected with push rod 11, and push rod 11 is connected with linkage part 2, and driving part 1 sets up to the motor in this embodiment, and linkage part 2 sets up to the linkage board, and the middle part of linkage board is outstanding to prevent that linkage board and other parts from interfering, the forward and reverse rotation of motor drives the reciprocating motion of push rod 11, and the motion of push rod 11 drives the linkage board and follows the motion.

Preferably, the push rod 11 of the present embodiment is coupled to the linkage 2 by a bearing, so that the push rod 11 can be deflected by a certain angle relative to the driving member 1 to avoid interference with other parts.

The motion of the linkage member 2 of this embodiment drives the walking wheels 4 to deflect by means of the linkage member 3, specifically, the linkage member 3 includes a first connecting rod 31 and a second connecting rod 32, one end of the first connecting rod 31 is in hinged fit with one end of the linkage member 2, in this embodiment, the end portion of the linkage member 2 is formed with an assembly hole, a bearing is arranged in the assembly hole, the first connecting rod 31 is in hinged fit with the linkage member 2 by the bearing, the other end of the first connecting rod 31 is also in hinged fit with one end of the second connecting rod 32 by means of the bearing, the other end of the second connecting rod 32 is fixedly connected with the walking wheels 4 by means of the connecting assembly 5, thus, the motion of the linkage member 2 drives the first connecting rod 31 to move, the motion of the first connecting rod 31 drives the second connecting rod 32 and the walking wheels 4 connected therewith to deflect, thereby realizing the steering of the walking wheels 4 and devices thereon.

In the embodiment, the linkage 2, the first link 31 and the second link 32 are connected by the bearing to reduce the friction force between them, and compared with the use of the bolt, after a plurality of deflections, the gap between the bolt and the assembly hole is increased, which affects the precision of controlling the deflection of the road wheel 4.

The connecting assembly 5 of this embodiment can guarantee the synchronism of the two side road wheels 4, specifically, the connecting assembly 5 includes the fastener 51 and the base plate 52, one end of the fastener 51 is fixedly connected with the second connecting rod 32, the fastener 51 is set as a bolt in this embodiment, the bolt is in threaded connection with the second connecting rod 32, the other end of the bolt is fixedly connected with the reference portion 521 of the base plate 52, in this embodiment, the two adopt a welding mode, the reference portion 521 sets a reference surface in this embodiment, thus it is guaranteed that the connecting assembly 3 and the connecting assembly 5 at the two ends of the linkage 2 are located at the same height, because the base plate 52 is fixedly connected with the road wheels 4, the synchronism of the two side road wheels 4 is guaranteed, that is, the two road wheels 4 are enabled to synchronously perform steering action.

Further, the base plate 52 of this embodiment is detachably connected to the road wheels 4 by means of the adapter 53, specifically, the connection assembly 5 further includes the adapter 53, the adapter 53 is configured as a rotating shaft in this embodiment, the rotating shaft is fixedly connected to the hub motor of the road wheels 4, a mounting channel is formed on one side of the base plate 52 facing the rotating shaft, the mounting channel is disposed along the axial direction of the rotating shaft, a rotation stopping groove is disposed in the mounting channel, and a rotation stopping member, such as a flat key, corresponding to the rotation stopping groove is formed on the rotating shaft, so that the base plate 52 can rotate around the rotating shaft and the road wheels 4 thereon to deflect.

Preferably, the line is formed on the periphery of walking wheel 4 of this embodiment, and when driving wheel 4 was deflected in driving piece 1 drive walking wheel, the frictional force between the line on the walking wheel 4 and the ground was great like this, and the resistance of walking wheel 4 to link assembly 3 is great promptly to guarantee to form great moment of torsion, the deflection angle scope of walking wheel 4 is bigger under this resistance and the thrust effect of driving piece 1.

The embodiment also provides a weeding machine, and the steering device is adopted, so that the weeding machine can be steered according to the requirement during weeding operation, and meanwhile, the side turning cannot occur.

The weeder of this embodiment has adopted two sets of devices that turn to, and two sets of devices that turn to set up both ends around the weeder respectively, are provided with two sets of walking wheels 4 on the weeder promptly, and the weeder is supported more balanced like this to reduced the risk that the weeder turned on one's side, in addition, all be provided with wheel hub motor on every walking wheel 4 of this embodiment, the effect that both ends all can play the driving head on the weeder like this.

The weeder of this embodiment is when needs turn to, provides the effort through turning to the device and makes walking wheel 4 just can the certain angle of beat in the short time, has reduced the frictional contact time of walking wheel 4 with the lawn, relies on walking wheel 4 self to pass through motor control both sides walking wheel 4 to have the speed difference among the prior art completely, leads to the frictional contact time of walking wheel 4 with the lawn long, and the reducible damage that causes the lawn because of friction in place of this embodiment.

The driving piece 1 of this embodiment is assembled on chassis 6, and the weeder still includes chassis 6, and chassis 6 is formed with multiunit bracing piece 61 along width direction, and the connection can be dismantled with the help of bolt and bracing piece 61 formation to the non-flexible end of driving piece 1, and driving piece 1 is set up along 6 length direction of chassis, has reduced the drive like this and has taken up in vertical direction space, is favorable to the miniaturized design of weeder.

Still be provided with wireless induction module on the weeder of this embodiment, wireless induction module receives the signal of controller, turning to of accessible controller control weeder like this, thereby cut the action to the barren grass, the walking wheel of because of this embodiment can very easy rotation under the effect that turns to the device, consequently the weeder can adopt both ends cutting weeds, and then the both ends of the chassis 6 of this embodiment all are provided with shielding piece 62, shielding piece 62 has a plurality of chains to constitute, in order to prevent that the weeder has stone at the during operation, impurity spill injury pedestrian etc..

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A steering device, characterized by comprising:

a driver (1), the driver (1) being fixedly mounted;

the telescopic end of the driving piece (1) is connected with the linkage piece (2);

two sets of link assembly (3), two sets of link assembly (3) respectively with the articulated cooperation in both ends of linkage piece (2), link assembly (3) are kept away from the one end and the walking wheel (4) fixed connection of linkage piece (2).

2. Steering device according to claim 1, wherein the drive element (1) drives the two road wheels (4) by means of the linkage element (2) in a synchronized steering movement.

3. The steering device according to claim 2, wherein the link assembly (3) comprises a first link (31) and a second link (32), one end of the first link (31) is in hinged fit with one end of the link member (2), the other end of the first link (31) is in hinged fit with one end of the second link (32), and the other end of the second link (32) is fixedly connected with the road wheel (4) by means of a connecting assembly (5).

4. Steering device according to claim 3, characterized in that said connection assembly (5) comprises:

a fastener (51), wherein one end of the fastener (51) is fixedly connected with the second connecting rod (32);

a base plate (52), wherein the reference part of the base plate (52) is fixedly connected with the other end of the fastener (51);

the adapter (53) penetrates through the mounting channel on the substrate (52) and is fixedly connected with the substrate (52) through the rotation stopping piece.

5. Steering device according to claim 1 or 4, characterized in that the road wheels (4) are provided with a texture on their outer circumference.

6. A weeding machine comprising a steering device according to any one of claims 1-5.

7. A weeding machine as claimed in claim 6, comprising two sets of said steering devices, which are respectively provided at both ends of the weeding machine.

8. A weeding machine as claimed in claim 7, further comprising a chassis (6), wherein the drive member (1) is fixedly mounted on the chassis (6), and wherein the drive member (1) is arranged along the length of the chassis (6).

9. A weeding machine as claimed in claim 7, wherein the chassis (6) is provided with shields (62) at both ends.

10. A weeding machine as claimed in claim 6, further comprising a wireless sensing module that receives the signal of the controller.