Durable adapter sleeve

Abstract

The utility model discloses a durable adapter sleeve, which relates to the technical field of adapter sleeves and comprises a neck bush and a locking nut. A first annular threaded groove and a second annular threaded groove are formed in the outer surfaces of the two ends of the neck bush pipe respectively, a conical ring facilitating positioning of the conical bearing is fixedly arranged on the outer surface of the middle of the neck bush pipe, and strip-shaped notches are formed in the outer surfaces of the neck bush pipe and the conical ring. The number of the locking nuts is two, the two locking nuts are arranged at the two ends of the neck bush pipe correspondingly, and the inner ring faces of the two locking nuts are in threaded connection with the inner wall of the first annular threaded groove and the inner wall of the second annular threaded groove correspondingly. According to the durable adapter sleeve disclosed by the utility model, through the two locking nuts, in the actual mounting process of the adapter sleeve, the neck bush pipe can be uniformly and effectively propped against and fixed with the surface of a shaft, so that the firmness degree of the adapter sleeve after being fixed is effectively ensured, and the service life of the adapter sleeve is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the tight sleeve, especially to a durable tight sleeve. BACKGROUND

[0002] The tight sleeve is the most commonly used component when the bearing with the conical hole is positioned on the cylindrical shaft, and the tight sleeve is composed of the tight bushing, the locking nut, the locking washer (or the locking card) and the like.

[0003] In the prior art, the patent document with the publication number CN214837861U discloses a tight sleeve with high stability, which comprises a tight bushing, the top side of the tight bushing is provided with a locking nut, the outer side of the tight bushing is provided with a locking washer, one side of the tight bushing is provided with a guide installation groove, the inner side of the guide installation groove is provided with a guide installation piece, the bottom side of the guide installation piece is provided with a fastening block, the inner side of the fastening block is provided with an empty groove, the two sides of the empty groove are both provided with a clamping groove, the inner side of the clamping groove is provided with a clamping column, the top side of the guide installation piece is provided with a threaded hole, the inner side of the threaded hole is provided with a threaded column, the bottom side of the threaded column is provided with an extrusion block, the bottom side of the extrusion block is provided with a clamping spring, the top side of the locking washer is provided with a stable lower ring, and the top side of the stable lower ring is provided with a stable upper ring, the tight sleeve with high stability has the heat dissipation hole, is stable in installation, has high stability in use, and has a simple and ingenious structure.

[0004] The technical scheme provided by the above patent technology can only lock the top of the tight bushing during the process of locking the tight bushing by rotating the locking nut, and lacks the corresponding locking assembly at the bottom of the tight bushing, so that the top outer surface and the bottom outer surface of the tight bushing are unevenly stressed, which affects the stability and reduces the service life during long-term use. In view of this, the present application provides a durable tight sleeve. UTILITY MODEL CONTENTS

[0005] The utility model discloses a durable tight sleeve which aims at solving the technical problems in the background art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A durable tight sleeve comprises:

[0008] An inner bushing pipe and a locking nut;

[0009] First and second annular threaded grooves are respectively formed in the outer surfaces of the two ends of the inner bushing pipe, a conical ring for positioning the conical bearing is fixed to the outer surface of the middle part of the inner bushing pipe, and strip-shaped notches are formed in the outer surfaces of the inner bushing pipe and the conical ring;

[0010] The number of the locking nuts is two, and the two locking nuts are arranged at two ends of the inner bushing pipe respectively, and the inner annular surfaces of the two locking nuts are respectively threadedly connected with the inner walls of the first and second annular thread grooves.

[0011] In a preferred scheme, the outer surface of the inner bushing pipe is slidingly arranged between two symmetrical locking washers, and the inner walls of the two locking washers are both fixedly provided with positioning inserts.

[0012] By arranging the locking washers, on one hand, the locking nuts can be effectively locked, and on the other hand, the tapered bearing can be effectively fixed and abutted, so that the stability of the tapered bearing after positioning is ensured.

[0013] In a preferred scheme, the outer surfaces of the two ends of the inner bushing pipe are both provided with two positioning slots, and the two positioning slots are respectively matched with the two positioning inserts and are respectively slidingly connected with the outer surfaces of the two positioning inserts.

[0014] By arranging the positioning slots, the locking washers can be easily sleeved on the surface of the inner bushing pipe, so that the locking washers can be stably and non-tilt sleeved on the surface of the inner bushing pipe.

[0015] In a preferred scheme, the outer surface of the locking nut is circumferentially arranged with four chiseling notches which are convenient for chiseling the locking nut by external tools.

[0016] By arranging the chiseling notches, in the process of rotating the locking nut and after the locking nut is tightened, the locking nut can be more tightly connected to the end of the inner bushing pipe by chiseling the chiseling notches by external tools, so that the stability of the fixation of the inner bushing pipe and the shaft surface is ensured.

[0017] In a preferred scheme, the inner walls of the four chiseling notches are all fixedly provided with protective sleeves for protecting the inner walls of the chiseling notches, and the material of the protective sleeves is acrylonitrile-butadiene-styrene resin.

[0018] By arranging the protective sleeves, the inner walls of the chiseling notches can be effectively protected, and the acrylonitrile-butadiene-styrene resin is used as the material of the protective sleeves, so that the protective sleeves have good impact resistance, thereby avoiding damage of the chiseling notches in the process of chiseling.

[0019] In a preferred scheme, the inner wall of the inner bushing pipe is a tapered structure, that is, the thickness of the inner wall of the right end to the left end of the inner bushing pipe gradually increases.

[0020] The inner bushing pipe can be more tightly and effectively fixed with the shaft surface.

[0021] As can be seen from the above, the durable locking sleeve has the following technical effects.

[0022] One: the utility model discloses a two locking nuts are set, make the tight fixing sleeve in the actual installation process, can make the lining sleeve pipe even with the surface of the shaft effective resistance fixed, thereby effectively guarantee the firm degree after the tight fixing sleeve fixed, effectively prolong its service life.

[0023] Two: the utility model discloses a chisel gap and protective sleeve are set, make the tight fixing sleeve when rotating locking nut locking, can realize the effective protection of chisel gap inner wall, avoid the deformation of chisel gap inner wall in the process of chiseling, realize the effective protection of locking nut. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the first visual angle structural diagram of durable tight fixing sleeve that the utility model proposes.

[0025] Figure 2 It is the second visual angle structural diagram of durable tight fixing sleeve that the utility model proposes.

[0026] Figure 3 It is the lining sleeve pipe and conical ring separation structure diagram of durable tight fixing sleeve that the utility model proposes.

[0027] Figure 4 It is the locking nut structure diagram of durable tight fixing sleeve that the utility model proposes.

[0028] Figure 5 It is the protective sleeve structure diagram of durable tight fixing sleeve that the utility model proposes.

[0029] In the drawings:

[0030] 100, lining sleeve pipe;101, first annular thread groove;102, second annular thread groove;103, conical ring;104, strip-shaped gap;

[0031] 200, locking nut;201, chisel gap;202, protective sleeve;

[0032] 300, locking washer;301, positioning plug;302, positioning slot. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

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

[0035] Referring to Figures 1-5 A durable type locking sleeve, comprising:

[0036] The inner sleeve pipe 100 and the locking nut 200;

[0037] Referring to Figure 1 And Figure 2 The inner wall of the inner sleeve pipe 100 is a tapered structure, that is, the thickness of the inner wall from the right end to the left end of the inner sleeve pipe 100 gradually increases, so that the inner sleeve pipe 100 can be more tightly and effectively fixed to the surface of the shaft.

[0038] The outer surface of the two ends of the inner sleeve pipe 100 is respectively provided with a first annular threaded groove 101 and a second annular threaded groove 102, the outer surface of the middle part of the inner sleeve pipe 100 is fixedly provided with a tapered ring 103 for positioning the tapered bearing, and the outer surface of the inner sleeve pipe 100 and the tapered ring 103 is provided with a strip-shaped notch 104;

[0039] Referring to Figure 2 And Figure 3 In a preferred embodiment, the outer surface of the inner sleeve pipe 100 is slidably arranged in two symmetrical locking washers 300, and the inner wall of each of the two locking washers 300 is fixedly provided with a positioning insert block 301.

[0040] By setting the locking washer 300, on the one hand, the locking nut 200 can be effectively locked, and on the other hand, the tapered bearing can be effectively clamped and fixed, ensuring the stability of the tapered bearing after positioning.

[0041] Referring to Figure 2 And Figure 3 In a preferred embodiment, the outer surface of the inner sleeve pipe 100 is slidably arranged in two symmetrical locking washers 300, and the inner wall of each of the two locking washers 300 is fixedly provided with a positioning insert block 301.

[0042] By setting the positioning insert slot 302, the locking washer 300 can be easily sleeved on the surface of the inner sleeve pipe 100, so that the locking washer 300 can be stably and non-inclined sleeved on the surface of the inner sleeve pipe 100.

[0043] The number of the lock nuts 200 is two, the two lock nuts 200 are arranged at two ends of the inner bushing pipe 100 respectively, and inner ring faces of the two lock nuts 200 are respectively in threaded connection with inner walls of the first annular threaded groove 101 and the second annular threaded groove 102.

[0044] Wherein, the utility model discloses two lock nuts 200, which can make the inner bushing pipe 100 effectively abut and fix with the surface of the shaft during actual installation of the fastening sleeve, thereby effectively guaranteeing the fastening degree of the fastening sleeve after fixing and effectively prolonging the service life.

[0045] Referring to Figure 4 In a preferred embodiment, the outer surface of the lock nut 200 is provided with four chisel gaps 201 in a circumferential array, which facilitate chiseling of the lock nut 200 by external tools.

[0046] By providing the chisel gaps 201, the lock nut 200 can be more tightly connected to the end of the inner bushing pipe 100 during rotation of the lock nut 200 and after tightening of the lock nut 200, thereby guaranteeing the stability of the inner bushing pipe 100 and the shaft surface.

[0047] Referring to Figure 5 The inner walls of the four chisel gaps 201 are each fixedly provided with a protective sleeve 202 for protecting the inner walls of the chisel gaps 201, and the material of the protective sleeve 202 is acrylonitrile-butadiene-styrene resin.

[0048] By providing the protective sleeve 202, the inner walls of the chisel gaps 201 can be effectively protected, and the acrylonitrile-butadiene-styrene resin is used as the material of the protective sleeve 202, so that the protective sleeve 202 has good impact resistance, thereby avoiding damage to the chisel gaps 201 during chiseling.

[0049] Wherein, the utility model discloses the chisel gap 201 and the protective sleeve 202, which can effectively protect the inner walls of the chisel gaps 201 during rotation of the lock nut 200 for locking, avoid deformation of the inner walls of the chisel gaps 201 during chiseling, and effectively protect the lock nut 200.

[0050] Working principle: the tight sleeve in the actual installation process, can first be lined with sleeve 100 on the shaft, after the tapered bearing sleeve on the inner lining sleeve 100 on the tapered ring 103 outer surface, then respectively through the positioning block 301 and positioning slot 302 slip into the two ends of the inner lining sleeve 100, two locking washers 300, two locking nuts 200 are installed and rotated locking nut 200 locking, so that the tight sleeve in the actual use process, compared with the existing single locking nut 200, it can make the inner lining sleeve 100 evenly with the surface of the shaft effective resistance fixed, so as to effectively guarantee the tight sleeve fixed firm degree, effectively prolong its service life, and the tight sleeve in the rotation of the locking nut 200 locking, can be through the external tool to the inner wall of the chisel gap 201 chisel, make the locking nut 200 can be more tightly locked with the inner lining sleeve 100, and the protective sleeve 202 is set, and the protective sleeve 202 uses acrylonitrile-butadiene-styrene resin as the material, can realize the effective protection of the inner wall of the chisel gap 201 in the process of chiseling, avoid the deformation of the inner wall of the chisel gap 201 in the process of chiseling, realize the effective protection of the locking nut 200.

[0051] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Substitution can be the substitution of part of the structure, device, method step, or the complete technical solution. According to the technical solution and the utility model concept of the present application, equivalent substitution or change should be covered in the protection scope of the present application.

Claims

1. A heavy duty locking bush, characterised in that, Include: The inner bushing (100) and the locking nut (200); The outer surface of both ends of the inner bushing (100) is respectively provided with a first annular threaded groove (101) and a second annular threaded groove (102), the outer surface of the middle part of the inner bushing (100) is fixedly provided with a tapered ring (103) for positioning the tapered bearing, and the outer surface of the inner bushing (100) and the tapered ring (103) is provided with a strip-shaped notch (104); The number of the locking nut (200) is two, two locking nuts (200) are respectively arranged at both ends of the inner bushing (100), and the inner ring surface of the two locking nuts (200) is respectively threadedly connected with the inner wall of the first annular threaded groove (101) and the second annular threaded groove (102).

2. A ruggedized adapter sleeve as in claim 1, wherein, The outer surface of the inner bushing (100) is slidably arranged in two symmetrical locking washers (300), and the inner wall of the two locking washers (300) is fixedly provided with a positioning plug (301).

3. A heavy duty spindle sleeve as set forth in claim 2 wherein, The outer surface of both ends of the inner bushing (100) is provided with two positioning slots (302), and the two positioning slots (302) are respectively matched with the two positioning plugs (301) and are respectively slidably connected with the outer surface of the two positioning plugs (301).

4. The ruggedized adapter sleeve of claim 1, wherein, The outer surface of the locking nut (200) is circumferentially provided with four chiseling notches (201) for chiseling the locking nut (200) by external tools.

5. A ruggedized adapter sleeve as in claim 4, wherein, The inner wall of the four chiseling notches (201) is fixedly provided with a protective sleeve (202) for protecting the inner wall of the chiseling notch (201), and the material of the protective sleeve (202) is acrylonitrile-butadiene-styrene resin.

6. The ruggedized adapter sleeve of claim 1, wherein, The inner wall of the inner bushing (100) is a tapered structure, that is, the thickness of the inner wall from the right end to the left end of the inner bushing (100) gradually increases.

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