Metal composite bushing

Abstract

The utility model discloses a metal composite bushing, which relates to the technical field of composite bushings and comprises an outer connecting ring component, an inner bushing component arranged on the inner side of the outer connecting ring component, a bushing tube component arranged on the inner side of the inner bushing component, and an outer connecting ring body, the outer connecting ring assembly comprises an outer connecting ring body, multiple sets of first heat dissipation holes distributed in the circumferential direction are formed in the outer end of the outer connecting ring body, the neck bush assembly comprises a neck bush body, multiple installation grooves distributed in the circumferential direction are formed in the inner end of the neck bush body, the inner wall of each installation groove is rotationally connected with a follow-up shaft through a bearing, and a rolling shaft is fixedly installed at the outer end of each follow-up shaft. By means of the outer connecting ring body, the first heat dissipation holes, the neck bush body, the second heat dissipation holes and the installation groove, the follow-up shaft can be rolled to conveniently install the neck bush assembly into the outer connecting ring body, meanwhile, the end of the follow-up shaft which is used for a long time can be directly cooled, and the service life of the follow-up shaft is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to composite bush technical field, concretely is a kind of metal composite bush. BACKGROUND

[0002] When mechanical equipment operates, shaft rotates at high speed, in order to improve the stability of shaft, avoid the abrasion caused by friction heat of shaft, improve the service life of shaft, a bush will be fixed outside the shaft to protect the shaft, and the bush is a commonly used component to prevent shaft wear in the field of industrial equipment.

[0003] For example, the utility model patent with publication number CN222577212U discloses a shock absorber composite bush, which comprises an inner bush. The beneficial effect is that: the utility model discloses an installation groove is arranged in the form of a ring outside the bush pipe, and a roller shaft is installed in each installation groove through a rotating shaft, and a groove is arranged at the matching part of the bush pipe and the roller shaft, so that when the composite bush rotates with the automobile shock absorber, the rotation of the bush pipe relative to the inner bush can be realized by means of the roller shaft, so as to reduce the rotation angle of the bush pipe relative to the mounting shaft when the bush pipe rotates with the automobile shock absorber, reduce the frictional force acting on the bush pipe during rotation, prolong the service life of the bush pipe, and limit the two sides of the rubber sleeve through the limiting shoulder outside the inner bush, so as to save the cumbersome operation of additional end cover, make the assembly process of the automobile shock absorber composite bush more efficient, and facilitate the efficient assembly and use of the automobile shock absorber composite bush. However, during the use of the bush, the rotating shaft drives the roller shaft to rotate, and the rotating shaft rotates in the inner wall of the groove, which generates heat during rotation. Overheating occurs at the rotating shaft of the bush after a long time of use, which finally leads to aging of the contact part between the bush pipe and the rotating shaft, reducing the service life of the bush pipe. Therefore, we propose a metal composite bush. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a metal composite bush to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a metal composite bush, comprising an outer connecting ring assembly, an inner bush assembly is arranged on the inner side of the outer connecting ring assembly, a bush pipe assembly is arranged on the inner side of the inner bush assembly, the outer connecting ring assembly comprises an outer connecting ring body, a plurality of first heat dissipation holes are arranged on the outer end of the outer connecting ring body in a circumferential distribution, the inner bush assembly comprises an inner bush body, a plurality of mounting grooves are arranged on the inner end of the inner bush body in a circumferential distribution, a follow-up shaft is rotatably connected to the inner wall of each mounting groove through a bearing, a roller shaft is fixedly installed on the outer end of each follow-up shaft, a plurality of second heat dissipation holes are arranged on the outer end of the inner bush body in a circumferential distribution, and the second heat dissipation holes are communicated with the mounting grooves.

[0006] Preferably, the outer connecting ring body is provided with a contraction groove at the outer end, and the contraction groove is arranged between two adjacent groups of first heat dissipation holes.

[0007] Preferably, the bushing pipe assembly comprises a bushing pipe body, and a plurality of matching grooves are arranged at the outer end of the bushing pipe body in a circumferential direction, and each matching groove is arranged corresponding to the mounting groove.

[0008] Preferably, each matching groove is provided with a bending part at the corner.

[0009] Preferably, the first heat dissipation hole is arranged corresponding to the second heat dissipation hole, and the number of the first heat dissipation holes is matched with the number of the second heat dissipation holes.

[0010] Preferably, the length of the outer connecting ring body is matched with the length of the inner bushing body, and the length of the inner bushing body is matched with the length of the bushing pipe body.

[0011] Preferably, the outer end of the inner bushing body abuts against the outer connecting ring body, and the outer end of the bushing pipe body abuts against the inner bushing body.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The utility model discloses an outer connecting ring body, a first heat dissipation hole, an inner bushing body, a second heat dissipation hole, a mounting groove, a follow-up shaft and a roller can complete the installation of the inner bushing assembly into the outer connecting ring body, and can directly dissipate heat to the end of the follow-up shaft used for a long time, thereby prolonging the service life of the follow-up shaft.

[0014] 2. The utility model discloses an outer connecting ring body and a contraction groove can complete the contraction action through the contraction groove when the inner bushing body is inserted into the outer connecting ring body, thereby facilitating the installation of the inner bushing body into the outer connecting ring body. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the inner bushing assembly structure schematic diagram of the utility model;

[0017] Figure 3 It is the outer connecting ring assembly structure schematic diagram of the utility model;

[0018] Figure 4 It is the bushing pipe assembly structure schematic diagram of the utility model.

[0019] In the figure: 1, outer connecting ring assembly; 11, outer connecting ring body; 12, first heat dissipation hole; 13, contraction groove; 2, inner bushing assembly; 21, inner bushing body; 22, second heat dissipation hole; 23, mounting groove; 24, follow-up shaft; 25, roller shaft; 3, bushing pipe assembly; 31, bushing pipe body; 32, matching groove; 33, bending part. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides a kind of technical solutions: a kind of metal composite bushing, including outer connecting ring assembly 1, outer connecting ring assembly 1 inside is provided with inner bushing assembly 2, inner bushing assembly 2 inside is provided with bushing pipe assembly 3, outer connecting ring assembly 1 includes outer connecting ring body 11, outer connecting ring body 11 outer end is provided with multiple first heat dissipation holes 12 that are circumferentially distributed, inner bushing assembly 2 includes inner bushing body 21, and inner bushing body 21 inner end is provided with multiple mounting grooves 23 that are circumferentially distributed, each mounting groove 23 inner wall is rotatably connected with follow-up shaft 24 by bearing, each follow-up shaft 24 outer end is fixedly installed roller shaft 25, and inner bushing body 21 outer end is provided with multiple second heat dissipation holes 22 that are circumferentially distributed, and second heat dissipation hole 22 is communicated with mounting groove 23.

[0022] In the embodiment, outer connecting ring body 11 outer end is provided with contraction groove 13, and contraction groove 13 is arranged between adjacent two groups of first heat dissipation holes 12.

[0023] Specifically, when inner bushing body 21 is inserted into outer connecting ring body 11, the contraction action can be completed through contraction groove 13, so that inner bushing body 21 can be conveniently installed into outer connecting ring body 11.

[0024] In the embodiment, bushing pipe assembly 3 includes bushing pipe body 31, and bushing pipe body 31 outer end is provided with multiple matching grooves 32 that are circumferentially distributed, and each matching groove 32 is provided with mounting groove 23.

[0025] Specifically, it is ensured that each roller shaft 25 is arranged in matching groove 32.

[0026] In the embodiment, each matching groove 32 corner is provided with bending part 33.

[0027] Specific, through the curved part 33 can be completed to facilitate the installation of the bushing pipe body 31 and the inner bushing body 21 to reduce the hard contact.

[0028] In this embodiment, the first heat dissipation hole 12 corresponds to the second heat dissipation hole 22, and the number of the first heat dissipation hole 12 matches the number of the second heat dissipation hole 22.

[0029] Specific, ensure that the outside air can directly through the first heat dissipation hole 12 and the second heat dissipation hole 22 into the installation groove 23.

[0030] In this embodiment, the length of the outer connecting ring body 11 matches the length of the inner bushing body 21, and the length of the inner bushing body 21 matches the length of the bushing pipe body 31.

[0031] Specific, ensure that the overall end face of the installation is in a flat state.

[0032] In this embodiment, the outer end of the inner bushing body 21 abuts against the outer connecting ring body 11, and the outer end of the bushing pipe body 31 abuts against the inner bushing body 21.

[0033] Specific, ensure that the outer connecting ring body 11 and the inner bushing body 21 are tightly abutted, and ensure that the inner bushing body 21 and the bushing pipe body 31 are tightly abutted.

[0034] Working principle: when installing the outer connecting ring assembly 1, the inner bushing assembly 2 and the bushing pipe assembly 3, the bushing pipe body 31 and the inner bushing body 21 can be inserted first at this time, and in this process, the curved part 33 provided on the surface of the bushing pipe body 31 reduces the hard contact of the roller 25 and the bushing pipe body 31, when the bushing pipe body 31 is inserted into the inner bushing body 21, the ends of the inner bushing body 21 and the bushing pipe body 31 are in a flat state, the roller 25 is in the installation groove 23, the first heat dissipation hole 12 and the second heat dissipation hole 22 are aligned, and in the use process of the device as a whole, the heat generated by the follow-up shaft 24 during rotation is discharged through the second heat dissipation hole 22 and the first heat dissipation hole 12.

[0035] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A metal composite bushing comprising an outer connecting ring assembly (1), characterized in that: The outer connecting ring assembly (1) is internally provided with an inner bushing assembly (2), and the inner bushing assembly (2) is internally provided with a bushing pipe assembly (3). The outer connecting ring assembly (1) comprises an outer connecting ring body (11), and a plurality of first heat dissipation holes (12) are formed in the outer end of the outer connecting ring body (11) in a circumferential distribution. The inner bushing assembly (2) comprises an inner bushing body (21), and a plurality of mounting grooves (23) are formed in the inner end of the inner bushing body (21) in a circumferential distribution. A follower shaft (24) is rotatably connected to the inner wall of each mounting groove (23) through a bearing. A roller shaft (25) is fixedly installed at the outer end of each follower shaft (24). A plurality of second heat dissipation holes (22) are formed in the outer end of the inner bushing body (21) in a circumferential distribution, and the second heat dissipation holes (22) are communicated with the mounting grooves (23).

2. A metal composite bushing according to claim 1, characterized in that: The outer end of the outer connecting ring body (11) is provided with a contraction groove (13), and the contraction groove (13) is arranged between two adjacent groups of first heat dissipation holes (12).

3. A metal composite bushing according to claim 1, wherein: The bushing pipe assembly (3) comprises a bushing pipe body (31), and a plurality of matching grooves (32) are formed in the outer end of the bushing pipe body (31) in a circumferential distribution. Each matching groove (32) is arranged corresponding to the mounting groove (23).

4. A metal composite bushing according to claim 3, wherein: Each matching groove (32) is provided with a bending portion (33) at the corner.

5. A metal composite bushing according to claim 1, wherein: The first heat dissipation holes (12) correspond to the second heat dissipation holes (22), and the number of the first heat dissipation holes (12) is matched with the number of the second heat dissipation holes (22).

6. A metal composite bushing according to claim 3, wherein: The length of the outer connecting ring body (11) is matched with the length of the inner bushing body (21), and the length of the inner bushing body (21) is matched with the length of the bushing pipe body (31).

7. A metal composite bushing according to claim 3, wherein: The outer end of the inner bushing body (21) abuts against the outer connecting ring body (11), and the outer end of the bushing pipe body (31) abuts against the inner bushing body (21).

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