Anti-deformation gearbox input shaft

Abstract

The utility model belongs to the technical field of output shafts, and particularly relates to an anti-deformation gearbox input shaft which comprises a shaft body, the shaft body comprises a matching section, and a connecting structure is arranged on the matching section; a counter bore is formed in the end face of the connecting section, the counter bore is filled with an expansion joint, and the connecting section is connected with an external connecting shaft.

Description

TECHNICAL FIELD

[0001] The utility model belongs to output shaft technical field especially relates to a kind of anti-deformation gear box input shaft. BACKGROUND

[0002] Input shaft is a shaft in the automobile gearbox, directly and driving shaft (transmission shaft) are connected, and torque and rotational speed are output, then drive automobile through differential.

[0003] The existing output shaft is often fixed by bolt, rivet structure during assembly process, which needs to drill the assembly position and the output shaft itself, and it is easy to affect the structural strength of the output shaft itself, so we specially design a kind of anti-deformation gear box input shaft. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned technical problem, provide a kind of anti-deformation gear box input shaft, reach the effect of high structural strength after assembly.

[0005] Therefore, the utility model provides a kind of anti-deformation gear box input shaft, including shaft body, shaft body includes:

[0006] Matching section, connecting structure is provided on matching section;

[0007] Connecting section, counterbore is provided on the end face of connecting section, and expansion joint is filled in counterbore, and connecting section is connected with external cooperation piece.

[0008] In the above technical scheme, further, connecting structure includes:

[0009] Cylinder, assembling hole is provided on cylinder;

[0010] Tooth surface, tooth surface is arranged on the outer lateral wall surface of cylinder;

[0011] Wherein, matching section is hexagonal, and assembling hole is correspondingly provided.

[0012] In the above technical scheme, further, it further includes:

[0013] Notch groove, notch groove is arranged on connecting section, and multiple deformation frame bodies are divided on connecting section.

[0014] In the above technical scheme, further, expansion joint includes:

[0015] Body, body is arranged in counterbore;

[0016] Convex ridge, convex ridge is integrally formed on body, and extends into notch groove.

[0017] In the above technical scheme, further, it further includes:

[0018] The spline section is arranged between the matching section and the connecting section, protrudes from the wall surface of the shaft body, and is tightly connected with the external matching part.

[0019] In the above technical solution, further comprising:

[0020] The end cover is arranged on the end surface of the connecting section, and the inner end surface of the end cover is provided with a connecting protrusion.

[0021] In the above technical solution, further comprising:

[0022] The locking bolt fixes the cylinder body and the matching section.

[0023] The end surface of the cylinder body is provided with a first screw hole, the end surface of the matching section is provided with a second screw hole, and the locking bolt is connected with the first screw hole and the second screw hole in sequence to fix the cylinder body and the matching section.

[0024] In the above technical solution, further comprising:

[0025] The tooth-shaped thread is arranged on the outer end surface of the convex ridge.

[0026] The beneficial effects of the utility model are that after the connecting section cooperates with the external matching part, the expansion joint expands to outwardly support the connecting section, thereby making the connection between the connecting section and the external matching part stable. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 It is an exploded view of the structure of the utility model;

[0029] Figure 3 It is a partial structure sectional view of the utility model;

[0030] The marks in the figure are as follows: 1, matching section; 11, second screw hole; 2, connecting structure; 21, cylinder body; 211, assembly hole; 212, first screw hole; 22, tooth surface; 3, connecting section; 31, counterbore; 32, expansion joint; 321, body; 322, convex ridge; 33, notch groove; 34, connecting hole; 4, spline section; 5, end cover; 51, connecting protrusion; 6, locking bolt; 7, tooth-shaped thread. DETAILED DESCRIPTION

[0031] With reference to the drawings and embodiments disclosed herein, it will be obvious to those skilled in the art that the embodiments described are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments disclosed herein, all other embodiments obtained by those skilled in the art are within the scope of the present application.

[0032] Embodiment 1:

[0033] The embodiment provides an anti-deformation gear box input shaft, which comprises a shaft body, the shaft body comprising:

[0034] The fitting section 1 is provided with a connecting structure 2.

[0035] The connecting section 3 is provided with a counterbore 31 on the end face, and the counterbore 31 is filled with an expansion joint 32, and the connecting section 3 is connected with an external fitting part.

[0036] The embodiment can be seen that an anti-deformation gear box input shaft comprises a shaft body, the shaft body comprising a fitting section 1 and a connecting section 3;

[0037] The fitting section 1 is provided with a connecting structure 2 for assembling a gear structure, and the connecting section 3 is used for connecting an external fitting part.

[0038] Further, the connecting section 3 is provided with a counterbore 31, and the counterbore 31 is connected with an expansion joint 32, and in use, after the connecting section 3 is connected with the external fitting part, the expansion joint 32 expands and outwardly expands the connecting section 3, so as to make the connection between the connecting section 3 and the external fitting part stable.

[0039] Embodiment 2:

[0040] The embodiment provides an anti-deformation gear box input shaft, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features.

[0041] The connecting structure 2 comprises:

[0042] The barrel 21 is provided with an assembly hole 211.

[0043] The tooth surface 22 is arranged on the outer side wall surface of the barrel 21.

[0044] The fitting section 1 is hexagonal, and the assembly hole 211 is correspondingly arranged.

[0045] The embodiment can be seen that the connecting structure 2 comprises a barrel 21 and a tooth surface 22.

[0046] The assembly hole 211 is formed on the barrel 21 and is hexagonal, and the matching section 1 is also hexagonal, and in use, the assembly hole 211 is connected with the matching section 1, and the driving is realized through the edge angle cooperation between the assembly hole 211 and the matching section 1.

[0047] Embodiment 3:

[0048] The embodiment provides a deformation-preventing gear box input shaft, which comprises the technical scheme of the above embodiment and has the following technical features.

[0049] The cutout groove 33 is arranged on the connecting section 3 and divides the connecting section 3 into a plurality of deformation support bodies.

[0050] The embodiment can be seen that the cutout groove 33 is arranged on one side of the assembly hole 211 of the matching section 1, so that a plurality of deformation support bodies are cut out from the matching section 1, and then the expansion joint 32 is helpful to expand the matching section 1, so that the connection between the matching section 1 and the external matching part is stable.

[0051] Embodiment 4:

[0052] The embodiment provides a deformation-preventing gear box input shaft, which comprises the technical scheme of the above embodiment and has the following technical features.

[0053] The expansion joint 32 comprises:

[0054] The body 321 is arranged in the counterbore 31.

[0055] The convex ridge 322 is integrally formed on the body 321 and extends into the cutout groove 33.

[0056] The embodiment can be seen that the expansion joint 32 comprises the body 321 and the convex ridge 322.

[0057] The body 321 is made of an alloy material with a high expansion coefficient, so as to improve the structural strength of the whole;

[0058] Further, the convex ridge 322 is formed on the outer side wall surface of the body 321, and in use, the convex ridge 322 is embedded into the cutout groove 33 and supplements the structure of the cutout groove 33, and the convex ridge 322 abuts against the external matching part in the expansion process.

[0059] Further, in use, after the matching section 1 is assembled with the external matching part, a flame gun is used to heat the connection part, so as to control the expansion of the expansion joint 32.

[0060] Embodiment 5:

[0061] The embodiment provides a deformation-proof gear box input shaft.

[0062] The spline section 4 is arranged between the matching section 1 and the connecting section 3, protrudes from the wall surface of the shaft body, and is tightly connected with an external matching part.

[0063] It can be seen that, in the embodiment, the spline section 4 is formed between the matching section 1 and the connecting section 3, and the matching section 1 is assembled with the external matching part, and then the spline pattern of the spline section 4 increases the roughness between the connecting surfaces, so that the connection is stable.

[0064] Embodiment 6

[0065] The embodiment provides a deformation-proof gear box input shaft.

[0066] The end cover 5 is arranged on the end surface of the connecting section 3, the inner side end surface of the end cover 5 is provided with a connecting protrusion 51, and the deformation frame body is correspondingly provided with a connecting hole 34.

[0067] It can be seen that, in the embodiment, the end cover 5 is arranged on the end surface of the connecting section 3, the inner side wall surface of the end cover 5 is provided with the connecting protrusion 51, the deformation frame body is correspondingly provided with the connecting hole 34 for assembling the connecting protrusion 51, so that the end cover 5 can be stably connected to the connecting section 3.

[0068] Embodiment 7

[0069] The embodiment provides a deformation-proof gear box input shaft.

[0070] The locking bolt 6 fixes the cylinder body 21 and the matching section 1.

[0071] The end surface of the cylinder body 21 is provided with a first screw hole 212, the end surface of the matching section 1 is provided with a second screw hole 11, and the locking bolt 6 is connected to the first screw hole 212 and the second screw hole 11 in sequence to fix the cylinder body 21 and the matching section 1.

[0072] It can be seen that, in the embodiment, the end surface of the cylinder body 21 is provided with the first screw hole 212, the end surface of the matching section 1 is provided with the second screw hole 11 corresponding to the first screw hole 212, and the locking bolt 6 is connected to the first screw hole 212 and the second screw hole 11 in sequence to fix the cylinder body 21 and the matching section 1 together, so that the cylinder body 21 is prevented from falling off during work.

[0073] Embodiment 8

[0074] The embodiment provides a deformation-proof gear box input shaft.

[0075] The tooth-shaped groove 7 is arranged on the outer side end surface of the convex ridge 322.

[0076] It can be seen that the tooth-shaped groove 7 can tightly hold the connecting surface of the external matching part during thermal expansion of the convex ridge 322.

[0077] The embodiments of the application are described above in combination with the drawings, the embodiments and the features in the embodiments in the application can be combined with each other without conflicts, the application is not limited to the specific embodiments, the specific embodiments are only illustrative but not restrictive, and those skilled in the art can make many forms under the inspiration of the application without departing from the purpose of the application and the scope protected by the claims, and all the forms belong to the protection of the application.

Claims

1. A distortion-proof gearbox input shaft comprising a shaft body, characterized in that the shaft body The utility model relates to a kind of expansion joints, including: Matching section (1), the matching section (1) is provided with connecting structure (2) on the matching section (1); Connecting section (3), the end face of the connecting section (3) is provided with counterbore (31), the counterbore (31) is filled with expansion joint (32), the connecting section (3) is connected with external matching piece; Wherein, connecting structure (2) includes: Cylinder (21), the cylinder (21) is provided with assembly hole (211); Tooth surface (22), the tooth surface (22) is arranged on the outer wall surface of cylinder (21); Wherein, the matching section (1) is hexagonal, the assembly hole (211) is correspondingly provided.

2. A distortion-proof gearbox input shaft according to claim 1, characterized in that Including: Cutout groove (33), the cutout groove (33) is arranged on connecting section (3), and multiple deformation frame bodies are divided on connecting section (3).

3. A distortion-proof gearbox input shaft according to claim 1, characterized in that Expansion joint (32) includes: Body (321), the body (321) is arranged in counterbore (31); Convex ridge (322), the convex ridge (322) is integrally formed on body (321), and extends into cutout groove (33).

4. A distortion-proof gearbox input shaft according to claim 3, further characterized by Including: Spline section (4), the spline section (4) is arranged between matching section (1) and connecting section (3), the spline section (4) protrudes from shaft body wall surface, and is connected between external matching piece and tight fit.

5. A distortion-proof gearbox input shaft according to claim 2, further characterized by Including: End cover (5), the end cover (5) is arranged on the end face of connecting section (3), the inner side end face of the end cover (5) is provided with connecting protrusion (51), and the deformation frame body is correspondingly formed with connecting hole (34).

6. A distortion-proof gearbox input shaft according to claim 5, further characterized by Including: Locking bolt (6), the locking bolt (6) fixes cylinder (21) with matching section (1); Wherein, the end face of the cylinder (21) is provided with first screw hole (212), the end face of the matching section (1) is provided with second screw hole (11), the locking bolt (6) is sequentially connected first screw hole (212) and second screw hole (11) to fix cylinder (21) with matching section (1).

7. A distortion-proof gearbox input shaft according to claim 6, further characterized by Including: Tooth-shaped thread (7), the tooth-shaped thread (7) is arranged on the outer side end face of convex ridge (322).

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