CN219242481U

CN219242481U - Novel tractor power output shaft and meshing sleeve connection structure

Info

Publication number: CN219242481U
Application number: CN202223333727.0U
Authority: CN
Inventors: 赵山虎; 陆凤祥; 马德云; 常飞龙
Original assignee: Jiangsu Yueda Intelligent Agricultural Equipment Co ltd
Current assignee: Jiangsu Yueda Intelligent Agricultural Equipment Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-06-23
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a novel connecting structure of a power output shaft and a meshing sleeve of a tractor, and relates to the field of connecting structures of the output shaft and the meshing sleeve. According to the utility model, the first through hole and the second through hole with different inner diameters are arranged, and the first through hole and the second through hole are matched with the power shaft, so that the meshing contact area can be increased, and meanwhile, the accurate matching between the power shaft and the sliding sleeve body can be improved, thereby effectively reducing impact and vibration, and improving torque transmission capability.

Description

Novel tractor power output shaft and meshing sleeve connection structure

Technical Field

The utility model relates to the field of connecting structures of an output shaft and a meshing sleeve, in particular to a novel connecting structure of a power output shaft and a meshing sleeve of a tractor.

Background

When the tractor works in the field, the rotary tillage work accounts for 20-40% of all the work and is used in concentrated time, so that higher requirements are put on the connection and cooperation of the power output shaft and the meshing sleeve. The existing meshing sleeve is connected with the power output shaft through a spline.

Disclosure of Invention

The utility model mainly aims to provide a novel connecting structure of a power output shaft and a meshing sleeve of a tractor, which is used for accurately positioning the position of the meshing sleeve when the output shaft is connected with the meshing sleeve and prolonging the service life of the power output shaft.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a novel tractor power take-off shaft and meshing cover connection structure, includes sliding sleeve body and power shaft, first through-hole and the second through-hole with power shaft looks adaptation are seted up to the inside of sliding sleeve body, first through-hole is linked together with the second through-hole, just the internal diameter of first through-hole is greater than the internal diameter of second through-hole, the inner wall of first through-hole and second through-hole is provided with the internal spline, the internal spline adopts original general length, satisfies the design requirement through calculating this spline length completely, and factor of safety is 2.1, the tooth piece has been seted up to the tip of sliding sleeve body, the power shaft activity sets up in first through-hole and second through-hole, the outer loop side movable sleeve of power shaft is equipped with the driving gear, can carry out accurate positioning to the power shaft.

Preferably, the machining tolerance of the inner ring of the sliding sleeve body is controlled to be phi aH8, the size of the power shaft is phi aH7, and the precise matching between the sliding sleeve body and the power shaft can be realized.

Preferably, the number of the tooth blocks is a plurality, and the tooth blocks are annularly distributed at the end part of the sliding sleeve body.

Preferably, the end of the internal spline of the second through hole and one end of the tooth block, which is close to the sliding sleeve body, are on the same plane.

Preferably, an outer ring side of one end of the power shaft is provided with an outer spline matched with the inner spline.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the first through hole and the second through hole with different inner diameters are arranged, and the first through hole and the second through hole are matched with the power shaft, so that the meshing contact area can be increased, and meanwhile, the accurate matching between the power shaft and the sliding sleeve body can be improved, thereby effectively reducing the impact and vibration, improving the torque transmission capability, and improving the rotation stability through the tooth blocks arranged at the end part of the sliding sleeve body.

Drawings

FIG. 1 is a perspective view of a novel tractor power take-off and sleeve connection structure according to the present utility model;

FIG. 2 is a view of a novel tractor power take-off and sleeve connection configuration of the present utility model;

FIG. 3 is a schematic view of a novel tractor power output shaft and sleeve connection structure according to the present utility model;

FIG. 4 is a schematic view of a novel tractor power take-off and sleeve connection structure according to the present utility model.

In the figure: 1. a sliding sleeve body; 2. a power shaft; 3. a first through hole; 4. a second through hole; 5. an internal spline; 6. tooth blocks; 7. a driving gear.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-4, the utility model discloses a novel connecting structure for a power output shaft and a meshing sleeve of a tractor, which comprises a sliding sleeve body 1 and a power shaft 2, wherein a first through hole 3 and a second through hole 4 which are matched with the power shaft 2 are formed in the sliding sleeve body 1, the first through hole 3 is communicated with the second through hole 4, the inner diameter of the first through hole 3 is larger than that of the second through hole 4, internal splines 5 are arranged on the inner walls of the first through hole 3 and the second through hole 4, the internal splines 5 adopt the original general length, the design requirement is completely met by calculating the spline length, the safety factor is 2.1, a tooth block 6 is formed at the end part of the sliding sleeve body 1, the power shaft 2 is movably arranged in the first through hole 3 and the second through hole 4, a driving gear 7 is movably sleeved on the outer ring side of the power shaft 2, and the power shaft 2 can be accurately positioned.

The machining tolerance of the inner ring of the sliding sleeve body 1 is controlled to be phi aH8, the size of the power shaft 2 is phi aH7, and the precise fit between the sliding sleeve body 1 and the power shaft 2 can be realized.

The number of the tooth blocks 6 is a plurality, and the tooth blocks are distributed in a ring shape at the end part of the sliding sleeve body 1.

The end of the internal spline 5 of the second through hole 4 is on the same plane with one end of the tooth block 6 close to the sliding sleeve body 1.

An external spline matched with the internal spline 5 is arranged on the outer ring side of one end of the power shaft 2.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel tractor power output shaft and meshing cover connection structure, includes sliding sleeve body (1) and power shaft (2), its characterized in that: the novel gear comprises a gear body and is characterized in that a first through hole (3) and a second through hole (4) which are matched with a power shaft (2) are formed in the sliding sleeve body (1), the first through hole (3) is communicated with the second through hole (4), the inner diameter of the first through hole (3) is larger than that of the second through hole (4), internal splines (5) are arranged on the inner walls of the first through hole (3) and the second through hole (4), a tooth block (6) is formed in the end portion of the sliding sleeve body (1), the power shaft (2) is movably arranged in the first through hole (3) and the second through hole (4), and a driving gear (7) is arranged on the outer ring side movable sleeve of the power shaft (2).

2. The novel tractor power output shaft and meshing sleeve connecting structure according to claim 1 is characterized in that: the machining tolerance of the inner ring of the sliding sleeve body (1) is controlled to be phi aH8.

3. The novel tractor power output shaft and meshing sleeve connecting structure according to claim 1 is characterized in that: the power shaft (2) has a dimension phi aH7.

4. The novel tractor power output shaft and meshing sleeve connecting structure according to claim 1 is characterized in that: the number of the tooth blocks (6) is a plurality, and the tooth blocks are distributed annularly at the end part of the sliding sleeve body (1).

5. The novel tractor power output shaft and meshing sleeve connecting structure according to claim 1 is characterized in that: the end part of the internal spline (5) of the second through hole (4) and one end of the tooth block (6) close to the sliding sleeve body (1) are on the same plane.

6. The novel tractor power output shaft and meshing sleeve connecting structure according to claim 1 is characterized in that: an external spline matched with the internal spline (5) is arranged on the outer ring side of one end of the power shaft (2).