CN212267617U

CN212267617U - Steering transmission mechanism

Info

Publication number: CN212267617U
Application number: CN202020810114.3U
Authority: CN
Inventors: 王艺霖; 秦大国; 唐可文
Original assignee: Chongqing Shineray Agricultural Machinery Co Ltd
Current assignee: Chongqing Shineray Agricultural Machinery Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-01-01
Anticipated expiration: 2030-05-15

Abstract

The utility model provides a turn to drive mechanism, this turn to drive mechanism includes: the driving bevel gear shaft is meshed with the driven bevel gear, the driven bevel gear is connected with the transmission sleeve, the left half shaft output shaft and the right half shaft output shaft are respectively provided with a clutch device connected with the transmission sleeve, each clutch device comprises a torque clutch sleeve and a torque transmission steel ball, and the transmission and disconnection of the torque of the half shaft output shaft corresponding to the transmission sleeve and the torque transmission steel ball are realized by controlling the combination and the disengagement of the torque transmission steel ball and the corresponding half shaft output shaft. The steering transmission mechanism enables one half shaft to be still in a rotating state and simultaneously enables the torque transmitted by the other half shaft to be disconnected during steering, so that automatic steering of the machine is easily realized.

Description

Steering transmission mechanism

Technical Field

The utility model relates to a plough quick-witted technical field a little, specifically speaking relates to a steering transmission mechanism.

Background

The mini-tiller is specially designed for cultivating sloping fields and small lands according to the topography of vast hills and mountainous areas in China, and is deeply favored by vast users due to the characteristics of light weight, small volume, simple structure, convenient operation and the like.

At present, output shafts of a micro-cultivator and a management machine are mostly in whole shaft transmission, the turning radius is large, and the steering difficulty in field operation can only be achieved by manpower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a turn to drive mechanism, aim at solving prior art, plough the whole axle transmission that machine and supervisor output shaft majority all adopted a little, turning radius is big, and can only rely on the problem that the manpower turned to at the difficulty that turns to of field operation.

In order to solve the technical problem, the utility model provides a steering transmission mechanism, include:

the driving bevel gear shaft is meshed with the driven bevel gear, the driven bevel gear is connected with the transmission sleeve, a clutch device connected with the transmission sleeve is respectively arranged on the left half shaft output shaft and the right half shaft output shaft, the clutch device comprises a torque clutch sleeve and a torque transmission steel ball, and the transmission and disconnection of the transmission sleeve and the half shaft output shaft torque corresponding to the torque transmission steel ball are realized by controlling the combination and the disengagement of the torque transmission steel ball and the corresponding half shaft output shaft.

Optionally, the left half-shaft output shaft and the right half-shaft output shaft are both hexagonal half shafts.

Optionally, the contact positions of the left half shaft output shaft and the right half shaft output shaft with the torque transmission steel ball are set to be arc inclined plane structures.

Optionally, the left half-shaft output shaft and the transmission sleeve, and the right half-shaft output shaft and the transmission sleeve are in small clearance fit.

Optionally, the left half-shaft output shaft and the right half-shaft output shaft are both provided with grooves for transmitting torque, the grooves penetrate through the corresponding whole half-shaft output shaft combination part, and the tail part adopts gradual change to reduce the groove depth.

Optionally, the groove includes a bottom surface and two side surfaces, the bottom surface and the two side surfaces are both arc-shaped, and an included angle formed by the circle centers of the circles on the two side surfaces and a line connecting the axes of the corresponding half-shaft output shafts is 5 degrees.

Optionally, the radius of the circle of the side surface is 4cm, and the radius of the circle of the bottom surface is 8 cm.

Optionally, the chamfer angle of two adjacent grooves is 72 degrees.

Optionally, the width of the upper surface of the convex part between two adjacent grooves is 4.73 cm.

Optionally, the torque clutch sleeve controls the torque transmission steel ball to be combined with and separated from the corresponding half-shaft output shaft by sliding the transmission sleeve left and right, so that the torque transmission of the torque transmission steel ball and the corresponding half-shaft output shaft is realized.

Advantageous effects

The utility model provides a turn to drive mechanism, this turn to drive mechanism includes:

the driving bevel gear shaft is meshed with the driven bevel gear, the driven bevel gear is connected with the transmission sleeve, the left half shaft output shaft and the right half shaft output shaft are respectively provided with a clutch device connected with the transmission sleeve, each clutch device comprises a torque clutch sleeve and a torque transmission steel ball, and the transmission and disconnection of the torque of the half shaft output shaft corresponding to the transmission sleeve and the torque transmission steel ball are realized by controlling the combination and the disengagement of the torque transmission steel ball and the corresponding half shaft output shaft.

The steering transmission mechanism enables one half shaft to be still in a rotating state and simultaneously enables the torque transmitted by the other half shaft to be disconnected during steering, so that automatic steering of the machine is easily realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic cross-sectional view of a steering transmission mechanism according to an embodiment of the present invention;

fig. 2 is a schematic view of a left half-shaft output shaft provided in an embodiment of the present invention;

fig. 3 is a schematic diagram of a side surface of a half-shaft output shaft according to an embodiment of the present invention;

description of reference numerals:

the torque clutch sleeve comprises a driving bevel gear shaft 1, a driven bevel gear 2, a transmission sleeve 3, a torque clutch sleeve 4, a torque transmission steel ball 5, a right half shaft output shaft 6, a left half shaft output shaft 7, a groove 8, a bottom surface 81, a side surface 82 and an arc inclined surface structure 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The present embodiment will provide a steering transmission mechanism, which, referring to fig. 1, 2, 3, includes:

the transmission device comprises a driving bevel gear shaft 1, driven bevel gears 2, a transmission sleeve 3, a left half-shaft output shaft 7 and a right half-shaft output shaft 6, wherein the driving bevel gear shaft 1 is meshed with the driven bevel gears 2, the driven bevel gears 2 are connected with the transmission sleeve 3, a clutch device connected with the transmission sleeve 3 is respectively arranged on the left half-shaft output shaft 7 and the right half-shaft output shaft 6, the clutch device comprises a torque clutch sleeve 4 and a torque transmission steel ball 5, and the transmission and disconnection of the torque of the half-shaft output shaft corresponding to the transmission sleeve 3 and the torque transmission steel ball 5 are realized by controlling the combination and the disconnection of the torque transmission steel ball 5 and the corresponding half-shaft output shaft.

Optionally, the left half-shaft output shaft 7 and the right half-shaft output shaft 6 are both hexagonal half shafts.

Optionally, the contact positions of the left half shaft output shaft 7 and the right half shaft output shaft 6 with the torque transmission steel ball 5 are set to be arc inclined plane structures 9. Thus, the phenomenon that the edge of the half shaft contacted with the torque transmission steel ball 5 is cracked and deformed due to clamping stagnation when the torque transmission steel ball 5 rolls up and down in the shaft groove is avoided.

Optionally, the left half-shaft output shaft 7 and the transmission sleeve 3, and the right half-shaft output shaft 6 and the transmission sleeve 3 are in small clearance fit. This makes the strength of the two half shafts more reliable and durable.

Optionally, the left half-shaft output shaft 7 and the right half-shaft output shaft 6 are both provided with a groove 8 for transmitting torque, the groove 8 penetrates through the corresponding whole half-shaft output shaft combination part, and the tail (i.e., the left end part of the groove 8 in fig. 2) adopts gradual change to reduce the groove depth, i.e., the tail groove depth is gradually reduced and gradually changed; thus, torque transmission is guaranteed, and meanwhile lubricating oil can lubricate the whole contact surface when the half shaft rotates relative to the transmission sleeve 3, so that the two parts cannot be sintered and occluded.

Optionally, the groove 8 includes a bottom surface 81 and two side surfaces 82, both the bottom surface 81 and the two side surfaces 82 are circular arcs, and the centers of the circles of the two side surfaces 82 form an included angle of 5 degrees with a connecting line of the axes of the corresponding half-shaft output shafts. That is, for the same groove 8, the included angle formed by the circle centers of the circles of the two side surfaces 82 and the axis connecting line of the half shaft output shaft is 5 degrees. In fig. 3, for the same groove 8, the angle formed by the circle centers of the left and right circles with the radius of 4cm and the line connecting the axle center of the half-shaft output shaft is 5 degrees.

Alternatively, the radius of the circle of the side surface 82 is 4cm and the radius of the circle of the bottom surface 81 is 8 cm. 12 × R4 in fig. 3 indicates a circle with a radius of 4cm and 12 circular arcs; 6R 8 shows a circle with a radius of 8cm and 6 circular arcs.

Alternatively, the chamfer angle of two adjacent grooves 8 is 72 degrees.

Alternatively, the width of the upper surface of the convex portion between two adjacent grooves 8 is 4.73 cm.

Optionally, the torque clutch sleeve 4 controls the combination and the disengagement of the torque transmission steel ball 5 and the corresponding half-shaft output shaft by sliding left and right on the transmission sleeve 3, so as to realize the transmission and the disconnection of the torque transmission steel ball 5 and the corresponding half-shaft output shaft.

When torque is transmitted, the torque clutch sleeve 4 presses the torque transmission steel ball 5 into the groove 8, so that the torque transmission steel ball 5 is in contact with one side surface 82, the torque of the transmission sleeve 3 is transmitted to one side surface 82 of the groove 8 of the corresponding half-shaft output shaft through the torque transmission steel ball 5, and the rotation of the corresponding half-shaft output shaft is realized.

Optionally, the driven bevel 2 is splined to the driving sleeve 3.

The power of the gearbox is transmitted to the driving bevel gear shaft 1, and the driving bevel gear shaft 1 is transmitted to the driven bevel gear 2 through bevel gear meshing; the driven bevel gear 2 and the transmission sleeve 3 are in spline fit, so that the driven bevel gear 2 transmits torque to the transmission sleeve 3; the transmission sleeve 3 transmits torque to a left half-shaft output shaft 7 and a right half-shaft output shaft 6 through a torque transmission steel ball 5; the torque clutch sleeve 4 controls the combination and the separation of the steel balls through sliding left and right on the transmission sleeve 3, so that the torque transmission and the disconnection of the torque transmission steel balls 5 and the left half-shaft output shaft 7 and the torque transmission of the right half-shaft output shaft 6 are realized, the rotation and the stop of the half shafts are controlled, and the steering of the whole machine is realized.

The steering transmission mechanism provided by the embodiment adopts two half shafts for transmission, and the structural parts of the two half shafts are matched with each other through holes and shafts to form a relatively rotatable whole, so that the structural strength is high, and the integrity is good; in addition, two hexagonal output shaft half shafts are respectively provided with one bearing on the left and the right in the bearing application, so that the cost is saved compared with the prior art that two bearings are respectively provided on the left and the right, and meanwhile, the axial distance of the box body is shorter, so that the whole machine is more compact; and the same rotary tillage cutter is arranged to carry out rotary tillage operation, so that the missing tillage width is smaller, and the tillage effect is better.

The steering transmission mechanism provided by the embodiment has the advantages of simple and compact structure, better reliability and low failure rate, realizes the half-shaft steering function under the condition of fewer transmission parts, has low production cost of the overall structure, and can bring better experience and income for users and enterprises.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principle of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims

1. A steering gear, comprising:

2. The steering gear according to claim 1, wherein the left half shaft output shaft and the right half shaft output shaft are both hexagonal half shafts.

3. The steering transmission mechanism according to claim 2, wherein the contact positions of the left half shaft output shaft and the right half shaft output shaft with the torque transmission steel ball are arranged in an arc inclined plane structure.

4. The steering transmission mechanism according to claim 2, wherein the left half shaft output shaft and the transmission sleeve, and the right half shaft output shaft and the transmission sleeve are in close clearance fit.

5. The steering transmission mechanism according to claim 4, wherein the left half shaft output shaft and the right half shaft output shaft are provided with grooves for transmitting torque, the grooves penetrate through the corresponding whole half shaft output shaft combination part, and the tail part is gradually reduced in groove depth.

6. The steering transmission mechanism according to claim 5, wherein the groove comprises a bottom surface and two side surfaces, the bottom surface and the two side surfaces are both arc-shaped, and the circle centers of the circles on the two side surfaces form an included angle of 5 degrees with a connecting line of the axes of the corresponding half-shaft output shafts.

7. Steering gear according to claim 6, characterised in that the circle of the side faces has a radius of 4cm and the circle of the bottom faces has a radius of 8 cm.

8. The steering transmission according to claim 4, wherein the chamfer angle of two adjacent grooves is 72 degrees.

9. The steering gear according to claim 4, wherein the width of the upper surface of the projection between two adjacent grooves is 4.73 cm.

10. The steering transmission mechanism according to any one of claims 1 to 9, wherein the torque clutch sleeve controls the torque transmission steel ball to be combined with and separated from the corresponding half-shaft output shaft by sliding left and right on the transmission sleeve, so that the torque transmission of the torque transmission steel ball and the corresponding half-shaft output shaft is realized.