Threaded connection type assembly

Abstract

The utility model discloses a threaded connection type assembly. The problems that a traditional driving shaft assembly is installed through a spline structure, and gaps are large are mainly solved. The device is characterized in that a first thread part (11) is arranged on the outer wall of the middle shaft extending into the shell; a second thread part (221) matched with the first thread part is arranged in the mounting hole; the ball pin assembly further comprises a check ring (5) which is installed on the middle shaft and matched with the ball pin frame in the axial direction in a limiting mode. The utility model provides a threaded connection type assembly, which can be detached at any time by adopting threaded connection, and is convenient to maintain and replace parts needing to be changed; high pressure can be borne, the threaded connection can bear great strength and pressure, tight connection is ensured, and safety is ensured to a certain extent; and the self-locking performance is good, specifically, threaded connection has the good self-locking performance, and loosening can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts, concretely relates to a threaded connection type assembly. BACKGROUND

[0002] The automobile transmission shaft assembly on the market at present is all through spline connection, the structure of the type of clamping spring fixed, the structure is high to spline requirement, and the clamping spring assembly gap is big, lead to the axial gap of product is bigger, this can influence:

[0003] Abnormal sound and jerk feeling: when the gap is overproof, the most obvious symptom is that abnormal sound appears when the vehicle accelerates or decelerates, and jerk feeling of the vehicle body is accompanied

[0004] Power reduction and stability weakening: the too big gap not only can influence the comfort of driving, more can lead to the reduction of automobile output power, make the vehicle unstable when accelerating. More serious, the aggravation of vehicle body vibration can cause significant damage to the transmission and half shaft, even cause the violent shaking of truck, and seriously threaten the driving safety. INVENTION CONTENTS

[0005] In order to overcome the insufficient of the background art, the utility model provides a threaded connection type assembly, mainly solves the problem of big gap of traditional driving shaft assembly using spline structure installation.

[0006] The technical scheme of the utility model,

[0007] A threaded connection type assembly, including intermediate shaft, the first universal joint is connected to one end of the intermediate shaft, the second universal joint is connected to the other end, the first universal joint includes the shell, the ball pin assembly is equipped in the shell, the ball pin assembly includes the ball pin frame, the mounting hole is axially equipped in the ball pin frame,

[0008] The outer wall of the intermediate shaft extending into the shell is equipped with the first threaded part;

[0009] The mounting hole is equipped with the second threaded part matched with the first threaded part;

[0010] It further includes the check ring, the check ring is installed on the intermediate shaft, and the check ring is limitedly matched with the axial direction of the ball pin frame.

[0011] The check ring is equipped with two, and is respectively equipped with the front and back two sides of the ball pin frame.

[0012] The first threaded part is external thread, and the second threaded part is internal thread.

[0013] The damping block is installed on the intermediate shaft.

[0014] Further comprising a dust cover, one end of the dust cover is connected with the intermediate shaft, and the other end is connected with the shell.

[0015] The damping block is installed on the intermediate shaft through a clamp.

[0016] The second universal joint comprises a second shell, a star-shaped sleeve is arranged in the second universal joint, the star-shaped sleeve is axially provided with a second through hole, a third threaded part is arranged on the intermediate shaft extending into the second shell, and a fourth threaded part matched with the third threaded part is arranged in the second through hole.

[0017] The blocking ring is made of 65Mn.

[0018] The dust cover is made of thermoplastic polyester.

[0019] The utility model discloses a threaded connection type assembly, adopts threaded connection and can be disassembled at any time, and the component that needs to be changed can be conveniently maintained and replaced.

[0020] High pressure resistance: threaded connection can bear great strength and pressure, ensures close connection, and guarantees safety to a certain extent; good self-locking property: threaded connection has good self-locking property and can prevent loosening. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a sectional view schematic diagram of the first embodiment of the utility model.

[0022] Figure 2 It is Figure 1 It is an enlarged schematic diagram of the middle A.

[0023] Figure 3 It is a partial sectional view schematic diagram of the first embodiment of the utility model. DETAILED DESCRIPTION

[0024] The utility model discloses a threaded connection type assembly, including intermediate shaft 1, one end of the intermediate shaft is connected with first universal joint 2, and the other end is connected with second universal joint 3, the first universal joint includes shell 21, the shell is equipped with ball pin assembly, the ball pin assembly includes ball pin frame 22, the ball pin frame is axially provided with mounting hole, and the outer wall of the intermediate shaft extending into the shell is equipped with first threaded part 11, the mounting hole is equipped with second threaded part 221 with the first threaded part cooperation, still including blocking ring 5, the blocking ring is installed on the intermediate shaft, and the blocking ring is limited with the axial direction of ball pin frame and cooperates. Adopt threaded connection and can be disassembled at any time, and the component that needs to be changed can be conveniently maintained and replaced.

[0025] High pressure resistance: threaded connection can withstand great strength and pressure, ensuring a tight connection, to some extent, to ensure safety; good self-locking: threaded connection has good self-locking performance, which can prevent loosening. Through the threaded connection, the axial gap generated by the traditional assembly spline connection can be eliminated, so that the car runs more smoothly and the controllability is better.

[0026] In the embodiment, as shown in the drawings, the check ring is provided with two, which are respectively arranged on the front and rear sides of the ball pin frame. It plays a limiting and anti-reverse role.

[0027] In the embodiment, as shown in the drawings, the first threaded part is an external thread, and the second threaded part is an internal thread.

[0028] In the embodiment, as shown in the drawings, the intermediate shaft is provided with a damping block 6. The damping block can effectively reduce the assembly vibration caused by the vibration of the automobile, reduce noise and increase driving comfort.

[0029] In the embodiment, as shown in the drawings, it also includes a dust cover 7, one end of which is connected with the intermediate shaft, and the other end is connected with the shell. Prevent foreign matter from entering the shell.

[0030] In the embodiment, as shown in the drawings, the damping block is installed on the intermediate shaft through a clamp 61. The installation is relatively convenient.

[0031] In the embodiment, as shown in the drawings, the second universal joint includes a second shell 31, a star-shaped sleeve 32 is arranged in the second universal joint, the star-shaped sleeve is axially provided with a second through hole, a third threaded part is arranged on the intermediate shaft extending into the second shell, and a fourth threaded part matched with the third threaded part is arranged in the second through hole. Similarly, threaded connection can also be used at the other end.

[0032] In the embodiment, as shown in the drawings, the check ring is made of 65Mn.

[0033] In the embodiment, as shown in the drawings, the dust cover is made of thermoplastic polyester.

[0034] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0035] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or a specific number of the technical features indicated. Thus, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise explicitly and specifically limited.

[0036] The embodiments described with reference to the drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. The embodiments should not be considered as limiting the present application, but any improvement made on the basis of the spirit of the present application should be within the scope of protection of the present application.

Claims

1. A threaded connection assembly, comprising a middle shaft (1) connected with a first universal joint (2) at one end and a second universal joint (3) at the other end, the first universal joint comprising a housing (21) with a ball pin assembly arranged in the housing, the ball pin assembly comprising a ball pin holder (22) provided with a mounting hole in the axial direction, characterized in that: a first threaded portion (11) is arranged on the outer wall of the middle shaft extending into the housing; a second threaded portion (221) is arranged in the mounting hole and cooperates with the first threaded portion; a retainer ring (5) is arranged on the middle shaft and limited in the axial direction by the ball pin holder; two retainer rings are arranged on the front and back sides of the ball pin holder; the first threaded portion is an external thread and the second threaded portion is an internal thread; a damping block (6) is arranged on the middle shaft; a dust cover (7) is arranged on the middle shaft at one end and connected with the housing at the other end; the damping block is arranged on the middle shaft by a clamp (61); the second universal joint comprises a second housing (31) with a star-shaped sleeve (32) arranged in the second universal joint, the star-shaped sleeve is provided with a second through hole in the axial direction, the middle shaft extending into the second housing is provided with a third threaded portion, and the second through hole is provided with a fourth threaded portion cooperating with the third threaded portion; the retainer ring is made of 65Mn; and the dust cover is made of thermoplastic polyester.

2. The threaded connection assembly according to claim 1, wherein the retainer ring is made of 65Mn.

3. The threaded connection assembly according to claim 1, wherein the dust cover is made of thermoplastic polyester. ​ 2. A threaded connection assembly as defined in claim 1, wherein: ​ 3. A threaded connection assembly as defined in claim 1, wherein: ​ 4. A threaded connection assembly as defined in claim 1, wherein: ​ 5. A threaded connection assembly according to any one of claims 1 to 4, characterized in that: ​ 6. A threaded connection assembly as defined in claim 4, wherein: ​ 7. A threaded connection assembly as defined in claim 6, wherein: ​ 8. A threaded connection assembly as defined in claim 1, wherein: ​ 9. A threaded connection assembly as defined in claim 5, wherein: ​

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