Self-centering bushing

Abstract

The utility model provides a self-centering bush which comprises two sets of installation parts fixedly arranged on the outer side of a self-centering bush body. The sliding parts are arranged in the installation parts in a circumferential sliding mode, and the fixing parts are fixedly arranged on the two sides of the two sets of installation parts in a mirror image mode; the lifting component is movably and fixedly arranged in the two sets of fixing components, a rotating shaft penetrates through the interior of the self-centering lining, the two sets of fixing components can provide fixing and mounting spaces for the two sets of mounting components, and the two sets of lifting components can be driven to extrude each other in the moving process; the mounting component comprises a bushing head, the bushing head is movably arranged at the right end of the self-centering bushing main body, and the bushing head is movably arranged at the right end of the self-centering bushing main body. And the bushing seat is movably arranged at the left end of the self-centering bushing main body.

Description

TECHNICAL FIELD

[0001] The utility model relates to bush technology field, concretely is a kind of self-centering bush. BACKGROUND

[0002] The accurate positioning of machine components plays an important role, and the components include bearing supports. These pedestal bearings are fixed on a common carrier, which has high requirements for assembly accuracy. The existing technology uses cylindrical pins to fix the pedestal bearings relative to the carrier. However, slight shaking may occur during rotation, which may affect the high accuracy requirements of the carrier, resulting in high cost and low efficiency during processing. SUMMARY

[0003] To achieve the above purpose, the utility model embodiment provides a self-centering bush, comprising

[0004] mounting components, two groups of mounting components are fixedly arranged outside the self-centering bush body;

[0005] sliding components, the sliding components are circumferentially arranged inside the mounting components;

[0006] fixed components, the fixed components are mirror image fixedly arranged on both sides of the two groups of mounting components;

[0007] lifting components, the lifting components are movably fixedly arranged inside the two groups of fixed components, wherein

[0008] the rotating shaft passes through the inside of the self-centering bush, and the two groups of fixed components can provide space for fixing and mounting the two groups of mounting components. During movement, the two groups of lifting components can be squeezed against each other, so that the sliding components can diffuse and buffer outward in a circular manner.

[0009] Further, the mounting component comprises:

[0010] bush head, the bush head is movably arranged at the right end of the self-centering bush body;

[0011] bush seat, the bush seat is movably arranged at the left end of the self-centering bush body;

[0012] longitudinal slot, the longitudinal slot is formed on one side of the bush seat;

[0013] fixed strip, the fixed strip is fixedly arranged at the front end of the bush seat.

[0014] Further, the mounting component further comprises:

[0015] ceramic sleeve, the ceramic sleeve is movably arranged inside the self-centering bush;

[0016] The longitudinal slot matches the fixing strip;

[0017] The bushing head matches the inside of the bushing seat;

[0018] The ceramic sleeve is a two-side-narrow cylinder, and the inside is hollow.

[0019] Further, the sliding component comprises:

[0020] The movable block is fixedly arranged inside the self-centering bushing;

[0021] The sliding groove is circumferentially arranged inside the movable block;

[0022] The circular spring is movably arranged outside the ceramic sleeve;

[0023] The sliding ring is circumferentially movably arranged outside the circular spring.

[0024] Further, the fixed component comprises:

[0025] The fixed seat is movably arranged on both sides of the ceramic sleeve;

[0026] The fixed ring is fixedly arranged between the fixed seat and the bushing head and the bushing seat.

[0027] Further, the lifting component comprises:

[0028] The lifting block is fixedly arranged at the front end of the fixed seat;

[0029] The lifting ring is arranged inside the fixed seat at one end;

[0030] The front end of the fixed seat is arranged from outside to inside.

[0031] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0032] The self-centering bushing body is provided with protection by the mutual engagement between the bushing head and the fixed strip when the machine rotates, so as to prevent the internal accessories from being damaged, and the lifting block and the lifting ring can extrude the circular spring and the plurality of sliding rings fixed outside the ceramic sleeve when the ceramic sleeve rotates, so as to effectively prevent the self-centering bushing body from moving or deforming when rotating, thereby ensuring the machining precision, and the two groups of fixed seats and the two groups of fixed rings can fix the movable block inside, thereby improving the stability and the working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0033] The utility model will be further explained in connection with the drawings and embodiments.

[0034] Figure 1 A shaft side view of the utility model is shown;

[0035] Figure 2 An expanded shaft side view of the utility model is shown;

[0036] Figure 3 An enlarged view of the sliding component of the utility model is shown;

[0037] Figure 4 An enlarged view of the lifting component of the utility model is shown.

[0038] Self-centering bushing body;

[0039] 2, installation component; 21, bushing head; 22, bushing seat; 23, longitudinal slot; 24, fixed strip;

[0040] 25, ceramic sleeve;

[0041] 3, sliding component; 31, movable block; 32, sliding groove; 33, circular spring; 34, sliding ring;

[0042] 4, fixed component; 41, fixed seat; 42, fixed ring;

[0043] 5, lifting component; 51, lifting block; 52, lifting ring. DETAILED DESCRIPTION

[0044] The utility model will be further explained in connection with the drawings and embodiments. Figure 1 , Figure 1 A shaft side view of the utility model is shown; Figure 2 , Figure 2 An expanded shaft side view of the utility model is shown; Figure 3 , Figure 3 An enlarged view of the sliding component of the utility model is shown;Figure 4 , Figure 4 The utility model discloses a lifting component enlarged view shows, as Figures 1-4 The utility model discloses a self-centering bushing, including

[0045] Mounting part 2, two groups mounting part 2 fixedly arranged in the self-centering bushing main part 1 outside;

[0046] Sliding part 3, the sliding part 3 is circumferentially sliding and is arranged in the mounting part 2 inside;

[0047] Fixed part 4, the fixed part 4 mirror image fixedly arranged in two groups mounting part 2 both sides;

[0048] Lifting component 5, the lifting component 5 movably fixedly arranged in two groups fixed part 4 inside, wherein,

[0049] Rotary shaft passes through the self-centering bushing inside, two groups fixed part 4 can provide the space of fixing and mounting for two groups mounting part 2, can drive two groups lifting component 5 to press mutually in the process of activity, so that the sliding part 3 is circumferentially like outside diffusion buffering;

[0050] The self-centering bushing, when machine rotates, the bushing head 21 is formed as a whole with the bushing seat 22 through the mutual engagement between the longitudinal slot 23 and the fixed strip 24, can provide protection for the self-centering bushing main part 1, prevent the internal fittings from being damaged, when the ceramic sleeve 25 inside rotates, the lifting block 51 and the lifting ring 52 can press the circular spring 33 and several sliding rings 34 fixedly arranged outside the ceramic sleeve 25, can effectively ensure that the self-centering bushing main part 1 does not move or deform when rotating, thereby guaranteeing the machining precision, two groups fixed seat 41 and two groups fixed ring 42 can fix the movable block 31 inside, improve the stability while improving the work efficiency.

[0051] Optionally, the mounting part 2 includes:

[0052] Bushing head 21, the bushing head 21 movably arranged in the self-centering bushing main part 1 right end;

[0053] Bushing seat 22, the bushing seat 22 movably arranged in the self-centering bushing main part 1 left end;

[0054] Longitudinal slot 23, the longitudinal slot 23 is set up in one side of the bushing seat 22;

[0055] A fixed strip 24 is fixedly arranged at the front end of the bushing seat 22, and the bushing head 21 can be combined with the bushing seat 22 to provide a fixed and mounted space for the self-centering bushing body 1.

[0056] Optionally, the mounting component 2 further comprises:

[0057] A ceramic sleeve 25 is movably arranged inside the self-centering bushing;

[0058] The longitudinal slot 23 is matched with the fixed strip 24;

[0059] The bushing head 21 is matched with the inside of the bushing seat 22;

[0060] The ceramic sleeve 25 is a two-side-narrow cylindrical structure with a hollow inside, which can provide a rotating and mounting space for the self-centering bushing body 1, and the whole rotates by the rotation of the bushing head 21.

[0061] Optionally, the sliding component 3 comprises:

[0062] A movable block 31 is fixedly arranged inside the self-centering bushing;

[0063] A sliding groove 32 is circumferentially arranged inside the movable block 31;

[0064] A circular spring 33 is movably arranged outside the ceramic sleeve 25;

[0065] A sliding ring 34 is circumferentially movably arranged outside the circular spring 33, the movable block 31 can provide a space for the sliding groove 32 and the circular spring 33, and the sliding ring 34 can drive the circular spring 33 to circumferentially and laterally expand and contract, which can effectively prevent the self-centering bushing body 1 from moving or deforming when rotating, thereby ensuring the machining precision.

[0066] Optionally, the fixing component 4 comprises:

[0067] A fixed seat 41 is movably arranged at two sides of the ceramic sleeve 25;

[0068] A fixed ring 42 is fixedly arranged between the fixed seat 41 and the bushing head 21 and the bushing seat 22, and the fixed seat 41 and the fixed ring 42 can provide a mounting and moving space for the ceramic sleeve 25.

[0069] Optionally, the lifting component 5 comprises:

[0070] Lifting block 51, which is fixedly arranged at the front end of the fixed seat 41;

[0071] Lifting ring 52, which is arranged inside the fixed seat 41 at one end;

[0072] The front ends of the two groups of fixed seats 41 are arranged in a converging manner from outside to inside, the lifting block 51 is matched with the lifting ring 52, and the sliding rings 34 are extruded through mutual extrusion between the lifting block 51 and the lifting ring 52 while rotating.

[0073] Working principle: When the machine rotates, the sleeve head 21 is integrated with the sleeve seat 22 through mutual clamping between the longitudinal slot 23 and the fixed strip 24, the two groups of fixed seats 41 and the two groups of fixed rings 42 can fix the movable block 31 inside, when the ceramic sleeve 25 inside rotates, the lifting block 51 and the lifting ring 52 can extrude the circular spring 33 and the sliding rings 34 fixedly arranged outside the ceramic sleeve 25, and the sliding groove 32 can provide the circular spring 33 and the sliding rings 34 with a space for expansion and contraction.

Claims

1. A self-centering bushing, characterized in that: include Mounting components (2), the two sets of mounting components (2) are fixedly mounted on the outside of the self-centering bushing body (1); The sliding component (3) is circumferentially slidably disposed inside the mounting component (2); Fixing component (4), which is fixedly disposed on both sides of the two sets of mounting components (2); A lifting component (5) is movably and fixedly disposed inside two sets of fixed components (4), wherein, The rotating shaft passes through the interior of the self-centering bushing. The two sets of fixed components (4) can provide space for the two sets of mounting components (2) to be fixed and installed. During the movement, the two sets of lifting components (5) can be driven to squeeze each other, so that the sliding component (3) spreads and buffers outward in a circular shape.

2. The self-centering bushing as described in claim 1, characterized in that, The mounting component (2) includes: Bushing head (21), which is movably disposed at the right end of the self-centering bushing body (1); Bushing seat (22), which is movably disposed at the left end of the self-centering bushing body (1); Longitudinal groove (23), the longitudinal groove (23) is formed on one side of the bushing seat (22); A fixing strip (24) is fixedly disposed at the front end of the bushing seat (22).

3. A self-centering bushing as described in claim 2, characterized in that, The mounting component (2) also includes: A ceramic sleeve (25) is movably disposed inside the self-centering bushing; The longitudinal groove (23) matches the fixing strip (24); The bushing head (21) matches the inside of the bushing seat (22); The ceramic sleeve (25) is a cylinder with narrow sides and a hollow interior.

4. A self-centering bushing as described in claim 3, characterized in that, The sliding component (3) includes: Movable block (31), the movable block (31) is fixedly disposed inside the self-centering bushing; A sliding groove (32) is formed in a circular shape inside the movable block (31); A circular spring (33) is movably disposed on the outside of the ceramic sleeve (25); Sliding rings (34), a plurality of the sliding rings (34) are arranged in a circular motion on the outside of the circular spring (33).

5. A self-centering bushing as described in claim 4, characterized in that, The fixing component (4) includes: Fixing base (41), two sets of fixing bases (41) are mirror-movably arranged on both sides of the ceramic sleeve (25); The two sets of fixing rings (42) are fixedly disposed between the two sets of fixing seats (41) and the bushing head (21) and bushing seat (22).

6. A self-centering bushing as described in claim 5, characterized in that, The lifting component (5) includes: A lifting block (51) is fixedly installed at the front end of the fixed base (41); A lifting ring (52) is formed inside the fixed seat (41) at one end; The front ends of the two sets of fixing seats (41) are arranged to taper from the outside to the inside.

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