High-bearing bush

Abstract

The utility model relates to a high bearing bush which comprises an inner lining pipe and an outer lining pipe, a rubber layer is arranged between the inner lining pipe and the outer lining pipe, a bottom limiting ring is arranged at the bottom of the outer lining pipe, a top limiting ring is arranged at the top of the outer lining pipe, and the inner diameter of the bottom limiting ring and the inner diameter of the top limiting ring are consistent with the inner diameter of the inner lining pipe. And an inserting mechanism is arranged between the top limiting ring and the inner wall of the outer lining pipe, and the top limiting ring can be quickly fixed between the inner walls of the top of the outer lining pipe through the inserting mechanism. The top limiting ring is fixed between the inner walls of the ends of the rotating rings through the inserting mechanisms, the bottom limiting ring and the top limiting ring jointly play a role in limiting the outer lining pipe, and therefore the purpose that the outer lining pipe can be disassembled and assembled is achieved, only the outer lining pipe needs to be replaced when the outer lining pipe is deformed and damaged due to friction and extrusion force, and the working efficiency is improved. And the rubber layer can be independently replaced, and the whole bushing does not need to be replaced, so that the use cost is reduced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to bush technology field, specifically to a kind of high bearing bush. BACKGROUND

[0002] The bush is a kind of mechanical parts, usually for cylindrical structure, it is often installed in the hole of mechanical component, reduce friction, reduce wear, buffer shock attenuation, protect matrix and so on function, positioning, adjusting gap and preventing corrosion and so on function, widely used in automobile, aerospace, industrial machinery and many other fields.

[0003] The Chinese patent with publication number CN220037317U discloses a composite bush, which provides a limiting effect through the limiting structure when the outer bushing is extruded against the buffer part, so that the displacement of the outer bushing is limited, thereby reducing the deformation of the buffer part and effectively solving the problem that the buffer rubber on the bush in the prior art is easily deformed after repeated stress, thereby affecting the shock-absorbing effect.

[0004] The outer bushing is directly subjected to friction and extrusion force from external objects, and is prone to deformation and damage. However, the outer bushing in the above-mentioned patent cannot be replaced, which results in that the entire bush cannot be used once the outer bushing is damaged, thereby increasing the use cost and reducing the service life. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of high bearing bush, effectively solve the problem raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] A kind of high bearing bush, comprising inner bushing and outer bushing, rubber layer is arranged between inner bushing and outer bushing, bottom limiting ring is arranged at the bottom of outer bushing, top limiting ring is arranged at the top of outer bushing, the inner diameter of bottom limiting ring and top limiting ring is consistent with the inner diameter of inner bushing, plug-in mechanism is arranged between the inner wall of top limiting ring and outer bushing, plug-in mechanism can quickly fix top limiting ring between the inner wall of outer bushing top.

[0008] Therefore, by sleeving the outer bushing on the outer side of the inner bushing and fixing the top limiting ring between the inner wall of the end portion of the rotating ring using the plug-in mechanism, the bottom limiting ring and the top limiting ring jointly limit the outer bushing, thereby achieving the purpose of disassembling the outer bushing. When the outer bushing is deformed and damaged due to friction and extrusion force, only the outer bushing needs to be replaced, and the rubber layer can also be replaced separately, without the need to replace the entire bush, thereby reducing the use cost and prolonging the service life.

[0009] Further, the plug-in mechanism comprises a mounting groove formed in the surface of the top limiting ring, a plug rod is slidably mounted in the mounting groove, a plug hole matched with the plug rod is formed in the inner wall of the outer lining pipe, a spring is arranged in the mounting groove, and the two ends of the spring are connected with the plug rod and the inner wall of the mounting groove away from the plug hole.

[0010] Further, the plug-in mechanism comprises a mounting groove formed in the surface of the top limiting ring, a plug rod is slidably mounted in the mounting groove, a plug hole matched with the plug rod is formed in the inner wall of the outer lining pipe, a spring is arranged in the mounting groove, and the two ends of the spring are connected with the plug rod and the inner wall of the mounting groove away from the plug hole.

[0011] Further, the plug-in mechanism comprises a mounting groove formed in the surface of the top limiting ring, a plug rod is slidably mounted in the mounting groove, a plug hole matched with the plug rod is formed in the inner wall of the outer lining pipe, a spring is arranged in the mounting groove, and the two ends of the spring are connected with the plug rod and the inner wall of the mounting groove away from the plug hole.

[0012] Further, the plug-in mechanism comprises a mounting groove formed in the surface of the top limiting ring, a plug rod is slidably mounted in the mounting groove, a plug hole matched with the plug rod is formed in the inner wall of the outer lining pipe, a spring is arranged in the mounting groove, and the two ends of the spring are connected with the plug rod and the inner wall of the mounting groove away from the plug hole.

[0013] Further, the plug-in mechanism comprises a mounting groove formed in the surface of the top limiting ring, a plug rod is slidably mounted in the mounting groove, a plug hole matched with the plug rod is formed in the inner wall of the outer lining pipe, a spring is arranged in the mounting groove, and the two ends of the spring are connected with the plug rod and the inner wall of the mounting groove away from the plug hole.

[0014] Further, the plug-in mechanism comprises a mounting groove formed in the surface of the top limiting ring, a plug rod is slidably mounted in the mounting groove, a plug hole matched with the plug rod is formed in the inner wall of the outer lining pipe, a spring is arranged in the mounting groove, and the two ends of the spring are connected with the plug rod and the inner wall of the mounting groove away from the plug hole.

[0015] Further, the plug-in mechanism comprises a mounting groove formed in the surface of the top limiting ring, a plug rod is slidably mounted in the mounting groove, a plug hole matched with the plug rod is formed in the inner wall of the outer lining pipe, a spring is arranged in the mounting groove, and the two ends of the spring are connected with the plug rod and the inner wall of the mounting groove away from the plug hole.

[0016] Compared with the prior art, the utility model has the advantages as follows.

[0017] 1. The utility model discloses a detachable lining pipe, which comprises an inner lining pipe and an outer lining pipe sleeved outside the inner lining pipe.

[0018] 2. The utility model discloses a detachable lining pipe, which comprises an inner lining pipe and an outer lining pipe sleeved outside the inner lining pipe. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1It is a whole structure perspective view of the utility model;

[0020] Figure 2 It is a partial section structure schematic view of the utility model;

[0021] Figure 3 It is a structure schematic view of the plug-in mechanism in the utility model;

[0022] Figure 4 It is a section structure schematic view of the outer lining pipe in the utility model;

[0023] Figure 5 It is Figure 1 The enlarged schematic view of A in the utility model.

[0024] In the drawing: 100, inner lining pipe; 101, rubber layer; 102, outer lining pipe; 103, bottom limiting ring; 104, top limiting ring; 200, plug-in mechanism; 201, installation groove; 202, plug rod; 203, plug hole; 204, spring; 300, rotating ring; 301, wedge-shaped block; 302, wedge-shaped rod; 400, annular sliding groove; 401, annular sliding block; 500, telescopic rod; 600, positioning rod. DETAILED DESCRIPTION

[0025] 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 protection scope of the utility model.

[0026] In the description of the embodiments of the utility model, it should be explained that, unless explicitly specified and limited, the terms "connection", "installation" should be understood in a broad sense, for example, "connection" can be detachable connection, or non-detachable connection; can be direct connection, or indirect connection through intermediate medium. In addition, "communication" can be direct communication, or indirect communication through intermediate medium. Among them, "fixing" means connecting with each other and the relative position relationship after connection does not change. The orientation language mentioned in the embodiments of the utility model, for example, "inner", "outer", "top", "bottom" and the like, is only the direction of the drawing, therefore, the orientation language is used for better and clearer description and understanding of the embodiments of the utility model, and is not indicative or implied that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as the limitation of the embodiments of the utility model.

[0027] In the embodiments of the utility model, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features.

[0028] Please refer to Figures 1-5 The utility model provides a kind of high bearing bush, including inner liner tube 100 and outer liner tube 102, rubber layer 101 is arranged between inner liner tube 100 and outer liner tube 102, the bottom of outer liner tube 102 is provided with bottom limiting ring 103, the top of outer liner tube 102 is provided with top limiting ring 104, the inner diameter of bottom limiting ring 103 and top limiting ring 104 is consistent with the inner diameter of inner liner tube 100, and the inner wall between top limiting ring 104 and outer liner tube 102 is provided with inserting mechanism 200, and inserting mechanism 200 can be quickly fixed between the inner wall of the top of outer liner tube 102.

[0029] In use, when outer liner tube 102 is deformed and damaged due to external friction and extrusion force, the fixing between top limiting ring 104 and the inner wall of outer liner tube 102 can be released by inserting mechanism 200 first, then top limiting ring 104 is removed, and then outer liner tube 102 is removed from inner liner tube 100 for replacement, when installing new outer liner tube 102, it is slidably sleeved on the outer side of rubber layer 101, so that bottom limiting ring 103 abuts against the bottom of inner liner tube 100, then top limiting ring 104 is inserted into the inner wall between the end of outer liner tube 102, and is fixed with outer liner tube 102 by inserting mechanism 200, since bottom limiting ring 103 and outer liner tube 102 are of integrated structure, bottom limiting ring 103 and top limiting ring 104 jointly limit outer liner tube 102 at this time, so that the detachable purpose of outer liner tube 102 is realized, and when it is deformed and damaged due to friction and extrusion force, only outer liner tube 102 can be replaced, and rubber layer 101 can also be replaced separately, without replacing the entire bush, so that the use cost is reduced, and the service life is prolonged.

[0030] Preferably, inserting mechanism 200 includes mounting groove 201 opened on the surface of top limiting ring 104, plug rod 202 is slidably installed in the inside of mounting groove 201, plug hole 203 matched with plug rod 202 is opened in the inner wall of outer liner tube 102, spring 204 is arranged in the inside of mounting groove 201, and the two ends of spring 204 are connected with plug rod 202 and the inner wall of mounting groove 201 away from plug hole 203 respectively.

[0031] When the sliding insertion rod 202 withdraws its end from the insertion hole 203, the contact between the top limiting ring 104 and the outer liner tube 102 can be removed from the inner wall of the outer liner tube 102, and when the insertion rod 202 is inserted into the insertion hole 203 under the pushing force of the spring 204, the fixed connection between the top limiting ring 104 and the outer liner tube 102 can be achieved, and the spring 204 continuously applies a pushing force to the insertion rod 202, which can ensure that the insertion rod 202 is stably inserted into the insertion hole 203 and avoids disengagement.

[0032] Preferably, the insertion mechanism 200 is provided with four groups, and the four groups of insertion mechanisms 200 are arranged in an annular array.

[0033] Through the arrangement of the four groups of insertion mechanisms 200, four connection points are uniformly distributed between the top limiting ring 104 and the inner wall of the outer liner tube 102, so that the connection between the top limiting ring 104 and the outer liner tube 102 is more reliable and stable.

[0034] Preferably, a rotating ring 300 is rotatably installed on the upper surface of the top limiting ring 104, four wedge blocks 301 are annularly arranged on the inner wall of the rotating ring 300, a wedge rod 302 is installed on the upper surface of the insertion rod 202, and the upper end of the wedge rod 302 extends to the outside of the installation slot 201 and is in extrusion fit with the wedge block 301.

[0035] Through the arrangement of the rotating ring 300, the wedge block 301 and the wedge rod 302, when the rotating ring 300 is rotated, it drives the four wedge blocks 301 to extrude the four wedge rods 302 at the same time. The wedge rod 302 is extruded and can slide along the inner wall of the installation slot 201 and drive the four insertion rods 202 to withdraw from the insertion hole 203 at the same time, so that a single person can complete the disassembly and assembly operation of the outer liner tube 102, improving portability.

[0036] Preferably, an annular sliding groove 400 is formed on the upper surface of the top limiting ring 104, and a ring-shaped sliding block 401 is dampingly installed in the annular sliding groove 400, and the top of the ring-shaped sliding block 401 is connected with the lower surface of the rotating ring 300.

[0037] Because of the damping between the ring-shaped sliding block 401 and the annular sliding groove 400, the rotating ring 300 cannot shake randomly during use of the liner.

[0038] Preferably, a telescopic rod 500 is installed in the installation slot 201, the two ends of the telescopic rod 500 are respectively connected with the inner wall of the installation slot 201 away from the insertion hole 203 and the insertion rod 202, and the spring 204 is sleeved on the outer surface of the telescopic rod 500.

[0039] The telescopic rod 500 is arranged to guide the spring 204, avoid bending deformation of the spring 204, and affect use.

[0040] Preferably, the upper surface of the bottom limiting ring 103 is provided with a plurality of positioning rods 600, and the bottom of the inner liner tube 100 is provided with a plurality of positioning holes matched with the positioning rods 600.

[0041] When the outer liner tube 102 is sleeved on the outer side of the inner liner tube 100, the positioning rods 600 are inserted into the positioning holes, thereby limiting the outer liner tube 102, avoiding rotation of the outer liner tube 102 on the outer side of the rubber layer 101, and causing abrasion of the rubber layer 101.

[0042] Preferably, the material of the inner liner tube 100 is polytetrafluoroethylene, and the material of the outer liner tube 102 is alloy steel.

[0043] Polytetrafluoroethylene has the characteristics of high strength and low friction coefficient, can effectively reduce the friction between the matched parts, reduce abrasion, alloy steel has high hardness, enhances the overall strength and wear resistance of the bushing, thereby improving the carrying capacity of the bushing.

[0044] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A high bearing bushing, comprising an inner liner tube (100) and an outer liner tube (102), characterized in that: a rubber layer (101) is arranged between the inner liner tube (100) and the outer liner tube (102), a bottom limiting ring (103) is arranged at the bottom of the outer liner tube (102), a top limiting ring (104) is arranged at the top of the outer liner tube (102), the inner diameter of the bottom limiting ring (103) and the top limiting ring (104) is consistent with the inner diameter of the inner liner tube (100), a plug-in mechanism (200) is arranged between the inner wall of the top limiting ring (104) and the outer liner tube (102), and the plug-in mechanism (200) can quickly fix the top limiting ring (104) between the inner wall of the top of the outer liner tube (102).

2. The high bearing bushing according to claim 1, characterized in that: the plug-in mechanism (200) comprises a mounting groove (201) opened on the surface of the top limiting ring (104), a plug rod (202) is slidably arranged in the mounting groove (201), the inner wall of the outer liner tube (102) is provided with a plug hole (203) matched with the plug rod (202), a spring (204) is arranged in the mounting groove (201), and the two ends of the spring (204) are respectively connected with the plug rod (202) and the inner wall of the mounting groove (201) away from the plug hole (203).

3. The high bearing bushing according to claim 1, characterized in that: the plug-in mechanism (200) is provided with four groups, and the four groups of plug-in mechanisms (200) are arranged in an annular array.

4. The high bearing bushing according to claim 2, characterized in that: a rotating ring (300) is rotatably arranged on the upper surface of the top limiting ring (104), four wedge-shaped blocks (301) are annularly arranged on the inner wall of the rotating ring (300), a wedge-shaped rod (302) is arranged on the upper surface of the plug rod (202), and the upper end of the wedge-shaped rod (302) extends to the outside of the mounting groove (201) and is in pressing fit with the wedge-shaped blocks (301).

5. The high bearing bushing according to claim 4, characterized in that: an annular sliding groove (400) is opened on the upper surface of the top limiting ring (104), an annular sliding block (401) is dampingly arranged in the annular sliding groove (400), and the top of the annular sliding block (401) is connected with the lower surface of the rotating ring (300).

6. The high bearing bushing according to claim 2, characterized in that: a telescopic rod (500) is arranged in the mounting groove (201), the two ends of the telescopic rod (500) are respectively connected with the inner wall of the mounting groove (201) away from the plug hole (203) and the plug rod (202), and the spring (204) is sleeved on the outer surface of the telescopic rod (500).

7. The high bearing bushing according to claim 1, characterized in that: ​ ​ ​ ​ ​ ​ A plurality of positioning rods (600) are mounted on the upper surface of the bottom limiting ring (103), and a plurality of positioning holes matched with the positioning rods (600) are formed in the bottom of the inner liner tube (100).

8. The high load bearing bushing of claim 1, wherein: The material of the inner liner tube (100) is polytetrafluoroethylene, and the material of the outer liner tube (102) is alloy steel.

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