Metal-lined internal thread shaft sleeve

Abstract

The utility model discloses a metal-lined internal thread shaft sleeve, which comprises a shaft sleeve body, the shaft sleeve body is arranged in a metal-lined cylinder, an internal thread structure is arranged in the shaft sleeve body, a positioning seat is fixedly arranged on the outer side of the shaft sleeve body, and a positioning block is fixedly arranged on the outer side of the positioning seat; the end of the lining metal cylinder is fixedly connected with the limiting base, a positioning groove is formed in the inner wall of the lining metal cylinder, and meanwhile the surface of the lining metal cylinder is fixedly welded to the carrier plate. According to the internal thread shaft sleeve with the metal lining, the shaft sleeve body can be detached in the metal lining cylinder, when the internal thread structure in the shaft sleeve body is damaged due to wire staggering, the shaft sleeve body can be detached in the metal lining cylinder and replaced with a new shaft sleeve body, and the whole metal lining part does not need to be discarded and scrapped; and the use and maintenance cost of the lining metal piece is reduced.

Description

Technical Field

[0001] The utility model relates to the field of threaded shaft sleeves, in particular to an internally threaded shaft sleeve with a metal lining. Background Art

[0002] The principle that the rotation of a threaded rod drives the lateral movement of a metal part screwed to the outside is based on the properties of the thread;

[0003] Specifically, a thread is a structure with a specific shape, usually a spiral shape; when the threaded rod rotates, it produces relative motion between it and the metal part screwed to the outside;

[0004] The metal piece has threads that match the threaded rod, and they mesh with each other;

[0005] Axial motion is converted into lateral motion: The rotational motion of the threaded rod causes the metal part to move laterally under the action of the thread; achieving lateral linear movement of the object;

[0006] The principle of the threaded rod rotating to drive the metal parts screwed on the outside to move horizontally utilizes the characteristics of the thread to convert the rotational motion into horizontal linear motion, thereby realizing various mechanical functions;

[0007] The metal part has threads that match the threaded rod. When the threads are misaligned with the threaded rod, the threads on the inner wall of the metal part are damaged, causing the metal part to be unusable, resulting in the problem of all being damaged if one is damaged. Utility Model Content

[0008] The utility model aims to provide an internally threaded shaft sleeve with a metal lining to solve the defects mentioned in the above background technology.

[0009] To achieve the above object, a metal-lined internally threaded sleeve is provided, comprising a sleeve body, the sleeve body is installed inside the metal-lined cylinder, and an internally threaded structure is provided inside the sleeve body, and a positioning seat is fixedly provided on the outside of the sleeve body, and a positioning block is fixedly installed on the outside of the positioning seat;

[0010] The end of the lining metal cylinder is fixedly connected to the limit seat, and a positioning groove is provided on the inner wall of the lining metal cylinder. Meanwhile, the surface of the lining metal cylinder is welded and fixed to the carrier plate, and an opening is provided on the surface of the carrier plate.

[0011] Preferably, the shaft sleeve body comprises a shaft sleeve, and a positioning seat is arranged on the outer side of the shaft sleeve, and the axial sections of the shaft sleeve and the positioning seat are concentric circle structures.

[0012] Preferably, six groups of positioning blocks are evenly installed on the outer side of the positioning seat, and six groups of positioning grooves are evenly arranged on the inner wall of the lining metal cylinder, and the sizes of the positioning grooves and the positioning blocks are adapted.

[0013] Preferably, the positioning block is inserted in the positioning groove, and the sleeve body is positioned and installed in the inner liner metal cylinder through the positioning groove and the positioning block, and the cross-sections of the positioning groove and the positioning block are both dovetail structures.

[0014] Preferably, the openings are symmetrically arranged in two groups on the surface of the carrier plate, and the openings are in a "U"-shaped structure, and the openings are arranged in a strip shape.

[0015] Preferably, the bottom of the inner lining metal cylinder is fixedly connected to the guide seat, and two groups of guide holes are symmetrically arranged inside the guide seat.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The shaft sleeve body is removable inside the inner lining metal cylinder. When the internal thread structure inside the shaft sleeve body is damaged by thread misalignment, the shaft sleeve body can be removed from the inner lining metal cylinder and replaced with a new one. There is no need to discard the entire inner lining metal part, thus reducing the use and maintenance cost of the inner lining metal part.

[0018] The sleeve body is positioned and installed inside the inner lining metal cylinder through positioning grooves and positioning blocks. The sleeve body and the inner lining metal cylinder are detachable, which can ensure that the product can continue to be used without damaging other parts, thereby extending the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the shaft sleeve body and the inner lining metal cylinder of the utility model structure;

[0021] Figure 3 The utility model structure Figure 2 Carry out combined installation diagram;

[0022] Figure 4 The utility model structure Figure 3 Schematic diagram of the cross-sectional structure.

[0023] Numbers in the figure: 1, shaft sleeve body; 11, shaft sleeve; 12, internal thread structure; 13, positioning seat; 14, positioning block; 2, inner lining metal cylinder; 3, carrier plate; 4, opening; 5, positioning groove; 6, limit seat; 7, guide seat; 8, guide hole. DETAILED DESCRIPTION

[0024] See also Figure 1-4The utility model provides a metal-lined internally threaded sleeve, comprising a sleeve body 1, the sleeve body 1 is installed inside a metal-lined cylinder 2, and an internally threaded structure 12 is provided inside the sleeve body 1, and a positioning seat 13 is fixedly provided outside the sleeve body 1, and a positioning block 14 is fixedly installed outside the positioning seat 13;

[0025] The end of the lining metal cylinder 2 is fixedly connected to the limit seat 6, and a positioning groove 5 is opened on the inner wall of the lining metal cylinder 2. At the same time, the surface of the lining metal cylinder 2 is welded and fixed to the carrier plate 3, and an opening 4 is opened on the surface of the carrier plate 3.

[0026] Working principle: When in use, the sleeve body 1 is positioned and installed inside the inner metal tube 2 through the positioning groove 5 and the positioning block 14. At this time, the external threaded rod is screwed into the inner thread structure 12, and the external guide rod is inserted into the guide hole 8. The rotation of the threaded rod can drive the sleeve body 1 and the inner metal tube 2 to perform linear motion;

[0027] The sleeve body 1 is detachable inside the inner lining metal tube 2. When the internal thread structure 12 inside the sleeve body 1 is damaged by thread misalignment, the sleeve body 1 can be removed from the inner lining metal tube 2 and replaced with a new sleeve body 1. There is no need to discard the entire inner lining metal part, thereby reducing the use and maintenance cost of the inner lining metal part.

[0028] As a preferred embodiment, the sleeve body 1 includes a sleeve 11, and a positioning seat 13 is arranged outside the sleeve 11, and the axial sections of the sleeve 11 and the positioning seat 13 are concentric circle structures.

[0029] Six groups of positioning blocks 14 are evenly installed on the outer side of the positioning seat 13 , and six groups of positioning grooves 5 are evenly arranged on the inner wall of the lining metal cylinder 2 , and the sizes of the positioning grooves 5 and the positioning blocks 14 are adapted to each other.

[0030] like Figure 1-4 As shown: six groups of positioning grooves 5 and positioning blocks 14 are provided, and the sleeve body 1 can be fixed between the inner lining metal cylinder 2 through the friction between the six groups of positioning grooves 5 and the positioning blocks 14, and the sleeve body 1 and the inner lining metal cylinder 2 will not loosen;

[0031] As a preferred embodiment: when the shaft sleeve body 1 and the inner lining metal cylinder 2 are plugged in, the shaft sleeve body 1 and the inner lining metal cylinder 2 can be fixed by using screws.

[0032] The positioning block 14 is inserted into the positioning groove 5, and the sleeve body 1 is positioned and installed inside the inner liner metal cylinder 2 through the positioning groove 5 and the positioning block 14. The cross-sections of the positioning groove 5 and the positioning block 14 are both dovetail structures.

[0033] Two groups of openings 4 are symmetrically arranged on the surface of the carrier plate 3 , and the openings 4 are of a “U”-shaped structure, and the openings 4 are arranged in a strip shape.

[0034] The opening 4 is a "U"-shaped structure, and can be screwed on the surface of the carrier plate 3 to fix a workpiece that needs to perform linear motion.

[0035] As a preferred embodiment, the bottom of the lined metal cylinder 2 is fixedly connected to the guide seat 7, and two groups of guide holes 8 are symmetrically arranged inside the guide seat 7.

[0036] like Figure 1-4 As shown: the sleeve body 1 is positioned and installed inside the inner lining metal cylinder 2 through the positioning groove 5 and the positioning block 14. The sleeve body 1 and the inner lining metal cylinder 2 are detachable, which can ensure that the product can continue to be used without damaging other parts, thereby extending the service life of the product.

Claims

1. A metal-lined internally threaded sleeve, comprising a sleeve body (1), characterized in that: The shaft sleeve body (1) is installed inside the inner lining metal cylinder (2), and an internal thread structure (12) is provided inside the shaft sleeve body (1), and a positioning seat (13) is fixedly provided on the outside of the shaft sleeve body (1), and a positioning block (14) is fixedly installed on the outside of the positioning seat (13); The end of the lining metal cylinder (2) is fixedly connected to the limit seat (6), and a positioning groove (5) is provided on the inner wall of the lining metal cylinder (2). At the same time, the surface of the lining metal cylinder (2) is welded and fixed to the carrier plate (3), and an opening (4) is provided on the surface of the carrier plate (3).

2. The metal-lined internally threaded sleeve according to claim 1, characterized in that: The shaft sleeve body (1) comprises a shaft sleeve (11), and a positioning seat (13) is arranged outside the shaft sleeve (11), and the axial sections of the shaft sleeve (11) and the positioning seat (13) are concentric circle structures.

3. The metal-lined internally threaded sleeve according to claim 1, characterized in that: Six groups of positioning blocks (14) are evenly installed on the outer side of the positioning seat (13), and six groups of positioning grooves (5) are evenly arranged on the inner wall of the lining metal cylinder (2), and the sizes of the positioning grooves (5) and the positioning blocks (14) are matched.

4. The metal-lined internally threaded sleeve according to claim 3, characterized in that: The positioning block (14) is inserted into the positioning groove (5) for positioning, and the sleeve body (1) is positioned and installed inside the inner lining metal cylinder (2) through the positioning groove (5) and the positioning block (14), and the cross-sections of the positioning groove (5) and the positioning block (14) are both dovetail structures.

5. The metal-lined internally threaded sleeve according to claim 1, characterized in that: The openings (4) are symmetrically arranged in two groups on the surface of the carrier plate (3), and the openings (4) are of a "U"-shaped structure. At the same time, the openings (4) are arranged in a strip shape.

6. The metal-lined internally threaded sleeve according to claim 1, characterized in that: The bottom of the inner-lined metal cylinder (2) is fixedly connected to the guide seat (7), and two groups of guide holes (8) are symmetrically arranged inside the guide seat (7).

Images