CN218163513U - Tooth-embedded steering clutch of mini-tiller - Google Patents

Abstract

The utility model discloses a tooth-embedded steering clutch of a mini-tiller, which comprises a spline shaft, two sets of shifting fork assemblies, a first steering gear, a second steering gear and a steering rod, wherein the two sets of shifting fork assemblies and the first steering gear are both arranged on the spline shaft, the first steering gear is positioned between the two sets of shifting fork assemblies, the second steering gear is meshed with the first steering gear, and the steering rod is connected with the second steering gear; the shifting fork assembly comprises a shifting fork block, a driving gear wheel, a driven gear wheel, a walking half shaft and a spring, wherein the walking half shaft is connected with the spline shaft, the spring and the driving gear wheel are arranged on the spline shaft, one end of the spring is fixed on the spline shaft, the other end of the spring is connected with the driving gear wheel, the driven gear wheel is arranged on the walking half shaft and can be meshed with the driving gear wheel, and the shifting fork block is pressed on the driving gear wheel.

Description

Tooth-embedded steering clutch of mini-tiller

The technical field is as follows:

the utility model belongs to the technical field of plough quick-witted accessories a little, in particular to plough quick-witted tooth and inlay formula steering clutch a little.

Background art:

the mini-tiller is a common agricultural small machine, can freely run in the field, has small volume and light weight, saves the trouble that large agricultural machines cannot enter mountainous fields, and is widely suitable for dry lands, paddy fields, orchards and the like in plains, mountainous areas and hills. The water pump, the power generation, the pesticide spraying, the spraying and other operations can be carried out by matching with corresponding machines. In the working process of the mini-tiller, the mini-tiller is often required to be turned leftwards or rightwards, wherein the shifting fork is turned in a common mode, but the existing shifting fork turning structure mostly adopts two groups of gear set structures which are meshed up and down, and one group of gear sets is disengaged when the mini-tiller is required to be turned, as recorded in CN201220662802.5 bevel gear transmission left and right turning mini-tiller, the gears meshed up and down in the structure are required to be assembled on different shafts, and the stability of the shifting fork is still poor; in addition, when the straight line needs to be recovered after the steering, the gear needs to be re-meshed by the gear, the re-meshing process of the gear is relatively slow, and the straight line may be recovered to a certain extent, so that the defects still need to be solved.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.

The utility model has the following contents:

an object of the utility model is to provide a plough quick-witted tooth and inlay formula steering clutch a little to overcome the defect among the above-mentioned prior art.

In order to achieve the purpose, the utility model provides a tooth-embedded steering clutch of a mini-tiller, which comprises a spline shaft, two sets of shifting fork assemblies, a first steering gear, a second steering gear and a steering rod, wherein the two sets of shifting fork assemblies and the first steering gear are both arranged on the spline shaft, the first steering gear is positioned between the two sets of shifting fork assemblies, the second steering gear is meshed with the first steering gear, and the steering rod is connected with the second steering gear; the shifting fork assembly comprises a shifting fork block, a driving gear wheel, a driven gear wheel, a walking half shaft and a spring, wherein the walking half shaft is connected with the spline shaft, the spring and the driving gear wheel are arranged on the spline shaft, one end of the spring is fixed on the spline shaft, the other end of the spring is connected with the driving gear wheel, the driven gear wheel is arranged on the walking half shaft and can be meshed with the driving gear wheel, and the shifting fork block is pressed on the driving gear wheel.

Further, as preferred, be equipped with the pivot on the shifting fork piece, be equipped with the installation piece in the pivot, the shifting fork piece can be the pivot for the axle rotation.

Preferably, the whole driving cone is of a spool-shaped structure with two large-diameter ends and a small middle diameter, one end of the driving cone is connected with the spring, the other end of the driving cone is meshed with the driven cone, and the shifting fork block is pressed on the part with the small middle diameter.

Further, as a preferred option, two rotating pieces are arranged on the spline shaft, one end of the spring is fixed with the rotating pieces, and the first steering gear is located between the two rotating pieces.

Further, preferably, the first steering gear is a disc-shaped vertical structure, and the second steering gear is meshed with the first steering gear from the side surface.

Preferably, the teeth of the second steering gear are helical teeth.

Compared with the prior art, the utility model discloses an aspect has following beneficial effect:

(1) The spline shaft and the walking half shaft in the shifting fork component of the utility model are connected to form an integral horizontal shaft, and the driving gear wheel and the driven gear wheel are meshed and disengaged on the integral horizontal shaft during steering, so that the integral stability is better compared with the meshing and disengaging on two shafts;

(2) The passive cone is connected with a spring, and when the passive cone needs to be restored after steering, the passive cone and the active cone are more favorably re-meshed under the resilience action of the spring, so that the driving is smoother when the driven cone is restored to be straight.

Description of the drawings:

FIG. 1 is a schematic view of a claw type steering clutch of the micro-cultivator of the present invention;

the reference signs are: the steering gear comprises a spline shaft 1, a rotating part 11, a shifting fork assembly 2, a shifting fork block 21, a driving cone 22, a driven cone 23, a walking half shaft 24, a spring 25, a rotating shaft 26, a mounting plate 27, a steering gear I3, a steering gear II 4 and a steering rod 5.

The specific implementation mode is as follows:

the following detailed description of the embodiments of the present invention is provided, but it should be understood that the scope of the present invention is not limited by the embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations such as "comprises" or "comprising", etc., will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Example 1:

as shown in fig. 1, the tooth-embedded steering clutch of the mini-tiller comprises a spline shaft 1, two sets of shifting fork assemblies 2, a first steering gear 3, a second steering gear 4 and a steering rod 5, wherein the two sets of shifting fork assemblies 2 and the first steering gear 3 are both arranged on the spline shaft 1, the first steering gear 3 is positioned between the two sets of shifting fork assemblies 2, the second steering gear 4 is meshed with the first steering gear 3, and the steering rod 5 is connected with the second steering gear 4; the shifting fork assembly 2 comprises a shifting fork block 21, a driving cone 22, a driven cone 23, a walking half shaft 24 and a spring 25, wherein the walking half shaft 24 is connected with the spline shaft 1, the spring 25 and the driving cone 22 are arranged on the spline shaft 1, one end of the spring 25 is fixed on the spline shaft 1, the other end of the spring 25 is connected with the driving cone 22, the driven cone 23 is arranged on the walking half shaft 24 and can be meshed with the driving cone 22, and the shifting fork block 21 is pressed on the driving cone 22.

Further, as an optimization, a rotating shaft 26 is arranged on the shifting fork block 21, an installation piece 27 is arranged on the rotating shaft 26, and the shifting fork block 21 can rotate by taking the rotating shaft 26 as a shaft. The mounting piece 27 is used for being fixed on the mini-tiller.

Further, preferably, the spline shaft 1 is provided with two rotating members 11, one end of the spring 25 is fixed to the rotating member 11, and the first steering gear 3 is located between the two rotating members 11. The provision of the swivel 11 further facilitates the fixation of the spring 25.

Further, preferably, the first steering gear 3 is a disc-shaped vertical structure, and the second steering gear 4 is engaged with the first steering gear 3 from the side.

Further, preferably, the teeth of the second steering gear 4 are helical teeth.

Example 2:

the structure of the driving cone 22 in embodiment 1 is also not beneficial to the shifting of the shifting fork block 21 and lacks limitation on the position of the shifting fork block 21, and preferably, referring to fig. 1, the driving cone 22 is integrally in a spool-shaped structure with two large end diameters and a small middle diameter, wherein one end of the driving cone is connected with a spring 25, the other end of the driving cone is engaged with a driven cone 23, and the shifting fork block 21 is pressed on a part with a small middle diameter. The shifting fork block 21 pushes the end part of the driving cone 22 at the position with small middle diameter, so that the shifting is more convenient, and the shifting fork block 21 can be limited to a certain extent.

The working principle of the utility model is as follows:

when the direction needs to be changed to one side, the shifting fork assembly 2 on the side is operated, the shifting fork block 21 shifts the driving cone 22 to the direction far away from the driven cone 23 so that the driving cone 22 and the driven cone 23 are disengaged, the walking half shaft 24 on the side loses power, the driving cone 22 and the driven cone 23 on the other side are still in a meshed state, the walking half shaft 24 can also normally rotate, the integral spline shaft 1 can be twisted towards the side losing power under the meshing action of the first steering gear 3 and the second steering gear 4, when the straight movement needs to be restored, the integral spline shaft 1 returns, the shifting fork block 21 shifts the driving cone 22, the driving cone 22 is re-meshed with the driven cone 23 under the action of the spring 25, and the walking half shafts 24 on the two sides can be moved straight movement after the power is restored.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (6)

1. Plough quick-witted tooth and inlay formula steering clutch a little, its characterized in that: the steering gear mechanism comprises a spline shaft (1), two sets of shifting fork assemblies (2), a first steering gear (3), a second steering gear (4) and a steering rod (5), wherein the two sets of shifting fork assemblies (2) and the first steering gear (3) are arranged on the spline shaft (1), the first steering gear (3) is located between the two sets of shifting fork assemblies (2), the second steering gear (4) is meshed with the first steering gear (3), and the steering rod (5) is connected with the second steering gear (4); the shifting fork assembly (2) comprises a shifting fork block (21), a driving gear wheel (22), a driven gear wheel (23), a walking half shaft (24) and a spring (25), the walking half shaft (24) is connected with the spline shaft (1), the spring (25) and the driving gear wheel (22) are arranged on the spline shaft (1), one end of the spring (25) is fixed on the spline shaft (1), the other end of the spring is connected with the driving gear wheel (22), the driven gear wheel (23) is arranged on the walking half shaft (24) and can be meshed with the driving gear wheel (22), and the shifting fork block (21) is pressed on the driving gear wheel (22).

2. The micro-cultivator jaw type steering clutch as claimed in claim 1, wherein: the shifting fork block (21) is provided with a rotating shaft (26), the rotating shaft (26) is provided with an installation piece (27), and the shifting fork block (21) can rotate by taking the rotating shaft (26) as a shaft.

3. The micro-cultivator jaw type steering clutch as claimed in claim 1, wherein: the whole driving cone (22) is of a spool-shaped structure with two large end diameters and a small middle diameter, one end of the driving cone is connected with the spring (25), the other end of the driving cone is meshed with the driven cone (23), and the shifting fork block (21) is pressed on the part with the small middle diameter.

4. The micro-cultivator jaw type steering clutch according to claim 1, characterized in that: the spline shaft (1) is provided with two rotating pieces (11), one end of the spring (25) is fixed to the rotating pieces (11), and the first steering gear (3) is located between the two rotating pieces (11).

5. The micro-cultivator jaw type steering clutch as claimed in claim 1, wherein: the first steering gear (3) is of a disc-shaped vertical structure, and the second steering gear (4) is meshed with the first steering gear (3) from the side face.

6. The micro-cultivator jaw type steering clutch as claimed in claim 1, wherein: and the teeth of the second steering gear (4) are helical teeth.

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