CN110800408B

CN110800408B - Wheel steering device and mini-tiller

Info

Publication number: CN110800408B
Application number: CN201911199388.1A
Authority: CN
Inventors: 杨继秀; 徐伟; 谢永华
Original assignee: Huaihua Vocational and Technical College
Current assignee: Huaihua Vocational and Technical College
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2022-09-27
Anticipated expiration: 2039-11-29
Also published as: CN110800408A

Abstract

The invention relates to a wheel steering device and a mini-tiller, wherein the wheel steering device comprises a mounting seat, an end cover, a bearing, a clamp spring, a flat pad and a locking bolt; the mount pad includes the installation department and sets up the spliced pole on the installation department, the spliced pole is equipped with hollow threaded hole, bearing and jump ring cover are established on the spliced pole, and the bearing setting is in the one side that is close to the installation department, the end cover includes connecting portion and sets up the sleeve on connecting portion, connecting portion are equipped with well through-hole, sleeve and well through-hole intercommunication, the sleeve cover is established on bearing and jump ring, the flat one side of keeping away from the mount pad in connecting portion of setting, the locking bolt passes flat pad, jump ring and bearing, and with hollow threaded hole threaded connection. When the vehicle turns, the wheels on one side are separated from the power output end, and the wheels on the other side continue to rotate, so that the vehicle turns. When the mini-tiller turns, the hand can be used for steering by holding the handrail of the mini-tiller, so that convenience and labor saving are realized. The steering square plate is convenient to use, simple in structure and suitable for a small-sized mini-tiller.

Description

Wheel steering device and mini-tiller

Technical Field

The invention relates to the field of mini-tillers, in particular to a wheel steering device and a mini-tilter.

Background

The mini-tiller is widely applied to agricultural operations such as ditching, ridging, weeding, digging and the like due to the advantages of small size, light weight, convenience in operation and the like. The general micro-tillage machine only has two wheels, and the two wheels are connected with two ends of a wheel shaft. The arrangement ensures that when the mini-tiller walks on the road and needs to turn, an operator needs to manually move the handle of the mini-tiller, so that the turning can be realized only by rotating two wheels by one circle, and the turning mode is very labor-consuming and inconvenient.

Disclosure of Invention

Therefore, a wheel steering device and a mini-tiller are needed to be provided so as to solve the problem that the turning of the traditional mini-tiller is laborious and inconvenient.

A wheel steering device comprises a mounting seat, an end cover, a bearing, a clamp spring, a flat gasket and a locking bolt; the mount pad includes the installation department and sets up spliced pole on the installation department, the installation department is used for being connected with wheel hub, the spliced pole is equipped with the cavity screw hole, the bearing with the jump ring cover is established on the spliced pole, just the bearing sets up and is being close to one side of installation department, the end cover includes connecting portion and sets up sleeve on the connecting portion, connecting portion are used for being connected with wheel hub, connecting portion are equipped with well through-hole, the sleeve with well through-hole intercommunication, the sleeve cover is established the bearing and on the jump ring, the flat setting of filling up connecting portion are kept away from one side of mount pad, locking bolt passes the flat pad the jump ring with the bearing, and insert in the cavity screw hole.

In one embodiment, the bearing includes a tapered roller bearing and a deep groove ball bearing, and the tapered roller bearing is disposed at a side close to the mounting portion.

In one of them embodiment, the installation department orientation one side of connecting portion is equipped with first screens piece, the connecting portion orientation one side of installation department is equipped with the second screens piece, works as the end cover for when the mount pad rotates, first screens piece with the second screens piece can the butt in order to restrict the turned angle of end cover.

In one embodiment, a spring washer is disposed between the head of the locking bolt and the flat pad.

In one embodiment, the mounting portion is provided with a first mounting hole for mounting a wheel hub.

In one embodiment, the first mounting holes are multiple, and the multiple first mounting holes are arranged around the connecting column.

In one embodiment, the connecting portion is provided with a second mounting hole for mounting a wheel axle.

In one embodiment, the second mounting holes are multiple, and multiple second mounting holes are arranged around the through hole in the end cover.

In one embodiment, the mounting portion and the connecting portion are each of a plate-like structure.

The utility model provides a plough machine a little, includes frame, axle bed, first shaft, second shaft, first wheel, second wheel and the wheel steering device of any preceding embodiment, the axle bed sets up in the frame, the one end of first shaft is through one the wheel steering device with first wheel is connected, the other end of first shaft with axle bed rotatable coupling, the one end of second shaft is through another the wheel steering device with the second wheel is connected, the other end of second shaft with axle bed rotatable coupling.

Compared with the prior art, the wheel steering device and the mini-tiller have the following beneficial effects:

according to the wheel steering device and the mini-tiller, when the mini-tiller is turned, the wheel on one side is separated from the power output end, and the wheel on the other side continues to rotate, so that the turning is realized. When the mini tiller is turned, the mini tiller can be steered by a hand-held handrail, so that convenience and labor saving are realized. The steering square plate is convenient to use, simple in structure and suitable for a small-sized mini-tiller.

Drawings

Fig. 1 is a schematic structural view of a wheel turning device according to an embodiment;

FIG. 2 is an exploded view of the wheel steering assembly of FIG. 1;

fig. 3 is a schematic view of the wheel steering apparatus of fig. 1 coupled to a wheel hub and a wheel axle.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, a wheel steering apparatus 100 according to an embodiment of the present invention can be used for steering a wheel of a mini-tiller, and the wheel steering apparatus 100 includes a mounting base 110, an end cover 120, a bearing, a clamp spring 140, a flat pad 150, and a locking bolt 160.

The mounting seat 110 includes a mounting portion 111 and a connection post 112. The mounting portion 111 is for connection to a wheel hub. The connection post 112 is disposed on the mounting portion 111, specifically, the connection post 112 is vertically disposed on the mounting portion 111, and one end of the connection post 112 is connected with the mounting portion 111. The connection post 112 is provided with a hollow screw hole 113, and the hollow screw hole 113 is opened at one end of the connection post 112 away from the mounting portion 111. The hollow screw hole 113 is connected with the lock bolt 160.

The bearing and the clamp spring 140 are sequentially sleeved on the connecting column 112, and the bearing is arranged on one side close to the mounting part 111.

The end cap 120 includes a connecting portion 121 and a bushing 122. The connecting portion 121 is used for connecting with a wheel axle, and the connecting portion 121 is provided with a through hole 1212. The bushing 122 is disposed at the connection part 121, and specifically, one end of the bushing 122 is connected to the connection protector, and the bushing 122 communicates with the middle through hole 1212. The bushing 122 is sleeved on the ball bearing and the snap spring 140, and the connecting portion 121 is located on one side of the principle mounting portion 111 of the bushing 122.

The flat pad 150 is disposed on a side of the connecting portion 121 away from the mounting seat 110, and the flat pad 150 abuts on an opening of the middle through hole 1212 of the connecting portion 121 to cover the middle through hole 1212. The locking bolt 160 passes through the flat pad 150, the snap spring 140, and the bearing, and is inserted into the hollow screw hole 113.

Thus, the wheel steering apparatus 100 separates the wheels on one side from the power output end during steering, and continues to operate on the other side to turn. When the mini tiller is turned, the mini tiller can be steered by a hand-held handrail, so that convenience and labor saving are realized. The steering square plate is convenient to use, simple in structure and suitable for a small-sized mini-tiller.

As shown, in one example, the bearing includes a tapered roller bearing 131 and a deep groove ball bearing 132, and the tapered roller bearing 131 is disposed at a side close to the mounting portion 111. Since the micro-cultivator is subjected to large up-and-down impact load during operation, the combination of the tapered roller bearing 131 and the deep groove ball bearing 132 can ensure the steering capacity of the wheel steering device 100 and enhance the load bearing capacity of the bearing.

In one example, the tapered roller bearing 131 has a model number 30204 and the deep groove ball bearing 132 has a model number 6204.

As shown in fig. 2, in one example, the side of the mounting portion 111 facing the connecting portion 121 is provided with a first detent 115, the side of the connecting portion 121 facing the mounting portion 111 is provided with a second detent 123, and when the cover 120 rotates relative to the mounting base 110, the first detent 115 and the second detent 123 can abut to limit the angle of rotation of the cover 120. In one example, the end cap 120 snaps after one forward rotation and one reverse rotation relative to the mount 110. So, can make the machine of ploughing a little can make the wheel antiport on both sides when turning to realize light turning.

As shown in fig. 2, in one example, a spring washer 170 is provided between the head of the locking bolt 160 and the flat pad 150.

In one example, the mounting portion 111 is provided with a first mounting hole 114 for mounting with a wheel hub. Specifically, the wheel turning device 100 and the wheel hub may be fixedly mounted by inserting the locking member into the first mounting hole 114 and the mounting hole of the wheel hub.

Further, in one example, there are a plurality of first mounting holes 114, and the plurality of first mounting holes 114 are disposed around the connecting post 112.

In the illustrated embodiment, there are four first mounting holes 114, and the four first mounting holes 114 are arranged in a central symmetry manner.

In one example, the end cap 120 is provided with a second mounting hole 124 for mounting with a wheel axle.

The second mounting holes 124 are plural, and the plural second mounting holes 124 are disposed around the through-center hole 1212 of the end cap 120. Specifically, the wheel turning device 100 and the wheel axle may be fixedly mounted by a locking member penetrating through the second mounting hole 124 and the mounting hole of the wheel axle (or the connecting plate at the end of the wheel axle).

Further, in one example, there are a plurality of second mounting holes 124, and the plurality of second mounting holes 124 are disposed around the central through hole 1212 of the end cap 120.

In the illustrated embodiment, there are four second mounting holes 124, and the four second mounting holes 124 are arranged in a central symmetry manner.

In one example, the mounting portion 111 and the connecting portion 121 are each plate-shaped structures. In the particular example illustrated, the mounting portion 111 and the connecting portion 121 are each a rounded square plate-like structure.

In one example, the flat pad 150 has a diameter of 10 mm.

In one example, the locking bolt 160 is an M10 × 25 hex bolt.

Further, the present invention provides a mini-tiller comprising a frame, a axle seat, a first axle, a second axle, a first wheel, a second wheel, and the wheel steering apparatus 100 of any of the above examples. The axle seat is arranged on the rack, one end of a first wheel shaft is connected with a first wheel through a wheel steering device 100, the other end of the first wheel shaft is rotatably connected with the axle seat, one end of a second wheel shaft is connected with a second wheel through another wheel steering device 100, and the other end of the second wheel shaft is rotatably connected with the axle seat.

More specifically, two rotating shafts are respectively arranged on two sides of the axle seat, and the two rotating shafts are respectively connected with the first wheel shaft and the second wheel shaft.

As shown in fig. 3, a connection plate is welded to one end of the first axle, and the connection plate is fixedly connected to the connection portion 121 of the end cover 120 by a bolt and nut fastener. The connection mode of the second wheel axle is the same as that of the first wheel axle, and the description is omitted.

According to the wheel steering device 100 and the mini-tiller, when the wheel is steered, the wheel on one side is separated from the power output end, and the wheel on the other side continuously operates, so that the steering is realized. When the mini-tiller turns, the hand can be used for steering by holding the handrail of the mini-tiller, so that convenience and labor saving are realized. The steering square plate is convenient to use, simple in structure and suitable for a small-sized mini-tiller.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A wheel steering device is characterized by comprising a mounting seat, an end cover, a bearing, a clamp spring, a flat gasket and a locking bolt; the mounting seat comprises a mounting part and a connecting post arranged on the mounting part, the mounting part is used for being connected with a wheel hub, the connecting post is provided with a hollow threaded hole, the bearing and the snap spring are sleeved on the connecting post, the bearing is arranged on one side close to the mounting part, the end cover comprises a connecting part and a sleeve arranged on the connecting part, the connecting part is used for being connected with a wheel shaft, the connecting part is provided with a middle through hole, the sleeve is communicated with the middle through hole, the sleeve is sleeved on the bearing and the snap spring, the flat pad is arranged on one side, far away from the mounting seat, of the connecting part, and the locking bolt penetrates through the flat pad, the snap spring and the bearing and is inserted into the hollow threaded hole;

the installation portion is provided with a first installation hole used for installing the wheel hub.

2. The wheel steering apparatus according to claim 1, wherein the bearing includes a tapered roller bearing and a deep groove ball bearing, the tapered roller bearing being provided on a side near the mounting portion.

3. The wheel steering apparatus of claim 1, wherein the mounting portion has a first detent on a side thereof facing the connecting portion, and the connecting portion has a second detent on a side thereof facing the mounting portion, the first detent and the second detent being engageable to limit the angle of rotation of the end cap when the end cap is rotated relative to the mounting base.

4. The wheel steering apparatus according to claim 1, wherein a spring washer is provided between the head of the lock bolt and the flat pad.

5. The wheel steering apparatus according to claim 4, wherein the first mounting hole is plural, and plural first mounting holes are provided around the attachment column.

6. The wheel steering apparatus according to claim 1, wherein the connecting portion is provided with a second mounting hole for mounting a wheel axle.

7. The wheel steering apparatus according to claim 6, wherein the second mounting hole is plural, and plural second mounting holes are provided around the through-center hole of the end cover.

8. The wheel steering apparatus according to any one of claims 1 to 7, wherein the mounting portion and the connecting portion are each of a plate-like structure.

9. A mini-tiller comprising a frame, a wheel axle seat, a first wheel axle, a second wheel axle, a first wheel, a second wheel and the wheel steering apparatus of any one of claims 1-8, wherein the wheel axle seat is disposed on the frame, one end of the first wheel axle is connected to the first wheel through one of the wheel steering apparatus, the other end of the first wheel axle is rotatably connected to the wheel axle seat, one end of the second wheel axle is connected to the second wheel through the other of the wheel steering apparatus, and the other end of the second wheel axle is rotatably connected to the wheel axle seat.