Threaded connection structure of front section shaft of auxiliary clutch

Abstract

The utility model discloses an auxiliary clutch front section shaft threaded connection structure which comprises an output shaft, a check ring, a spline sleeve and a locking sleeve. A limiting groove is formed in the output shaft; the spline housing is arranged on the output shaft through threaded connection; the check ring is arranged on one side of the spline housing through the limiting groove; the locking sleeve is arranged on the output shaft in a threaded connection mode and located on the other side of the check ring, the stability can be improved, and the torsional strength is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of tractors, in particular to a threaded connection structure of a front shaft of a secondary clutch. Background Art

[0002] Currently, all tractor manufacturers use an involute spline structure for their power output shafts. This structure has the advantage of having a standard broach or hob, making standardized manufacturing easier. However, the problem is that stress concentration easily forms at the key tail, significantly reducing the key tail's ability to withstand torque and making it prone to breaking.

[0003] Therefore, in response to the above-mentioned problems, the present invention proposes a threaded connection structure of the front shaft of the auxiliary clutch to solve the above-mentioned problems. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent.

[0005] To achieve the above-mentioned purpose, the first aspect of the present invention proposes a threaded connection structure of the front shaft of a secondary clutch, comprising: an output shaft, a stop ring, a spline sleeve and a locking sleeve, wherein; a limiting groove is provided on the output shaft; the spline sleeve is arranged on the output shaft through a threaded connection; the stop ring is arranged on one side of the spline sleeve through the limit groove; the locking sleeve is arranged on the output shaft through a threaded connection, and the locking sleeve is located on the other side of the stop ring.

[0006] In addition, the auxiliary clutch front end shaft assembly structure proposed in the present invention may also have the following additional technical features:

[0007] Furthermore, the limiting groove is provided at the front end of the output shaft thread.

[0008] Furthermore, a limiting block matching the limiting groove is provided on the inner side of the stop ring.

[0009] Furthermore, the minor diameter of the spline sleeve is the same as the outer diameter of the locking sleeve.

[0010] Furthermore, a mounting hole is provided on the outer wall of the locking sleeve.

[0011] Furthermore, the parameters of the spline sleeve and the shaft spline are exactly the same.

[0012] According to the auxiliary clutch front end shaft assembly structure of the present invention, the cooperation between the stop ring and the limit groove can prevent the locking sleeve from rotating and loosening, and the transmission shaft connected by threads has no stress concentration, which greatly improves the torsional strength of the dangerous section.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a structural schematic diagram of a threaded connection structure of a front shaft of a secondary clutch according to an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the output shaft structure of the auxiliary clutch front section shaft threaded connection structure according to one embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the retaining ring structure of the auxiliary clutch front shaft threaded connection structure according to one embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the spline sleeve structure of the auxiliary clutch front shaft threaded connection structure according to one embodiment of the present utility model;

[0019] Figure 5 This is a schematic structural diagram of a locking sleeve of a threaded connection structure of a front shaft of a secondary clutch according to an embodiment of the present utility model;

[0020] Figure 6 This is a schematic diagram of an existing dual clutch structure of a secondary clutch front section shaft threaded connection structure according to one embodiment of the utility model;

[0021] As shown in the figure:

[0022] 1. Output shaft; 11. Limit groove; 2. Snap ring; 21. Limit block; 3. Spline sleeve; 4. Locking sleeve; 41. Mounting hole; 5. First shaft. DETAILED DESCRIPTION

[0023] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] The auxiliary clutch front end shaft assembly structure of the embodiment of the present utility model will be described below with reference to the accompanying drawings.

[0025] like Figure 1As shown, the auxiliary clutch front end shaft assembly structure of the embodiment of the present utility model may include: an output shaft 1, a stop ring 2, a spline sleeve 3 and a locking sleeve 4.

[0026] Specifically, a limiting groove 11 is provided on the output shaft 1, the spline sleeve 3 is arranged on the output shaft 1 through a threaded connection, the retaining ring 2 is arranged on one side of the spline sleeve 3 through the limiting groove 11, and the locking sleeve 4 is arranged on the output shaft 1 through a threaded connection, and the locking sleeve 4 is located on the other side of the retaining ring 2.

[0027] It can be understood that the key tail of the output shaft 1 adopts a threaded structure to replace the spline structure, which achieves the purpose of eliminating stress concentration and solves the problem that stress concentration is easily formed in the key tail part, the ability of the key tail part to withstand torque is greatly reduced, and it is easy to twist off from the key tail, and if it is thickened, it will not be able to pass through the shaft 5 for assembly.

[0028] It can be further understood that the cooperation between the stop ring 2 and the limiting groove 11 prevents the locking sleeve 4 from rotating and loosening, thereby ensuring that the spline sleeve 3 does not move axially.

[0029] like Figure 2 and Figure 3 As shown, the auxiliary clutch front end shaft assembly structure of the embodiment of the present invention may include: a limit groove 11 is set at the front end of the thread line of the output shaft 1, and a limit block 21 matching the limit groove 11 is set on the inner side of the stop ring 2.

[0030] It should be noted that the stop ring 2 can move axially along the limiting groove 11 .

[0031] It is understandable that the limiting groove 11 limits the rotation of the stop ring 2 through the limiting block 21, thereby preventing the locking sleeve 4 from loosening and the spline sleeve 3 from moving laterally.

[0032] like Figure 4 、 Figure 5 Figure 6 As shown, the auxiliary clutch front end shaft assembly structure of the embodiment of the present invention may include: the minor diameter of the spline sleeve 3 is the same as the outer diameter of the locking sleeve 4, and a mounting hole 41 is opened on the outer wall of the locking sleeve 4.

[0033] It is understandable that the minor diameter of the spline sleeve 3 is the same as the outer diameter of the locking sleeve 4, thereby ensuring that it can pass through the main clutch, and the mounting hole 41 provided on the locking sleeve 4 can be locked with a hook wrench to facilitate installation.

[0034] Specifically, the parameters of the spline sleeve 3 and the spline of the shaft 5 are exactly the same.

[0035] It is understandable that the spline sleeve 3 and the shaft 5 have the same parameters, which makes it easier to pass through the main clutch during the assembly process.

[0036] In summary, the auxiliary clutch front end shaft assembly structure according to the embodiment of the present invention can improve its stability and greatly enhance its torsional strength.

[0037] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0039] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A threaded connection structure for the front shaft of a secondary clutch, characterized in that: include: An output shaft (1), a retaining ring (2), a spline sleeve (3) and a locking sleeve (4), wherein; A limiting groove (11) is provided on the output shaft (1); The spline sleeve (3) is arranged on the output shaft (1) through a threaded connection; The stop ring (2) is arranged on one side of the spline sleeve (3) through the limiting groove (11); The locking sleeve (4) is arranged on the output shaft (1) through a threaded connection, and the locking sleeve (4) is located on the other side of the stop ring (2).

2. A threaded connection structure for the front shaft of the auxiliary clutch according to claim 1, characterized in that: The limiting groove (11) is provided at the front end of the thread of the output shaft (1).

3. The threaded connection structure of the auxiliary clutch front shaft according to claim 1, characterized in that: A limiting block (21) matching the limiting groove (11) is provided on the inner side of the stop ring (2).

4. A threaded connection structure for the front shaft of the auxiliary clutch according to claim 1, characterized in that: The minor diameter of the spline sleeve (3) is the same as the outer diameter of the locking sleeve (4).

5. The threaded connection structure of the auxiliary clutch front shaft according to claim 1, characterized in that: A mounting hole (41) is provided on the outer wall of the locking sleeve (4).

6. The threaded connection structure of the auxiliary clutch front shaft according to claim 1, characterized in that: The parameters of the spline sleeve (3) and the spline of a shaft (5) are completely the same.

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