Adjustable bearing seat

Abstract

The utility model relates to the technical field of bearing pedestals, and discloses an adjustable bearing pedestal which comprises a rear cover, a front cover is installed on the rear cover, a first inner ring is arranged in the rear cover, a second inner ring is correspondingly arranged in the front cover, the first inner ring and the second inner ring are the same in size and are spliced with each other, the rear cover and the front cover are jointly connected with a rotating ring in a rotating mode, and the rotating ring is connected with a bearing. A plurality of extrusion grooves are symmetrically formed in the inner side of the rotating ring, the groove bottoms of the extrusion grooves are in an involute shape, extrusion blocks abut against the interiors of the extrusion grooves, the extrusion blocks penetrate through the first inner ring and the second inner ring and extend in the axis direction, and the multiple extrusion blocks jointly clamp a bearing. The device solves the problem that the outer ring of the bearing is easy to deform when the bearing is fixed by a bidirectional clamping structure, and the bearing is fixed by arranging a plurality of extrusion blocks of which the extension lengths can be adjusted along the radial direction, so that the single-point stress at the joint is dispersed, the deformation of the bearing is reduced, and the service life of the bearing is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing seat technical field more specifically, it relates to an adjustable bearing seat. BACKGROUND

[0002] Bearing needs corresponding support point in the process of installation, the inner support point of bearing is axle, and the outer support is bearing seat. The inner ring size of bearing seat needs to be matched with the outer ring of bearing, thereby providing stable support for bearing.

[0003] The utility model discloses a calibre adjustable bearing seat discloses the inner ring of bearing seat is divided into two parts, and the interval of two parts is adjusted through screw rod, thereby can also be fixed through clamping effect under the condition of different bearing sizes, and the adaptability is higher, but it is clamped to the bearing through upper and lower two arcs, and the pressure on the upper and lower sides of bearing is big, and the deformation of bearing outer ring is easy to cause, finally influence the service life of bearing. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model aims at providing a bore adjustable bearing seat.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An adjustable bearing seat, including rear cover, install front cover on the rear cover, set up inner ring one in the rear cover, set up inner ring two in the front cover correspondingly, the size of inner ring one and inner ring two is same, and is mutually spliced, the common rotation connection of rear cover and front cover has a rotating ring on it, the inner side of rotating ring is opened in a plurality of extrusion grooves, the groove bottom of extrusion groove is in the shape of involute, the extrusion block is abutted in the extrusion groove, the extrusion block penetrates inner ring one and inner ring two and extends to the direction of axle center, and a plurality of extrusion blocks clamp the bearing together.

[0007] The utility model further sets up as follows: the outside of front cover is provided with mounting block no. 2, the outside of rear cover is provided with mounting block no. 1 correspondingly, the common rotation connection of mounting block no. 2 and mounting block no. 1 has screw rod, the axle center of screw rod is on one side of mounting block no. 2, one end of rotating ring in the front cover is provided with external rack, the external rack is surrounded in the outer periphery of rotating ring, and the screw rod is engaged with external rack.

[0008] The utility model further sets up as follows: set up screw thread no. 1 in the rear cover, set up screw thread no. 2 on the end of rotating ring away from the front cover, and screw thread no. 2 and screw thread no. 1 are connected with each other in screw thread.

[0009] The utility model is further configured as follows: the two end surfaces of the rotating ring are spaced apart from the inner end surface of the rear cover and the inner end surface of the front cover respectively, and the screw and the external rack form a self-locking worm gear structure.

[0010] The utility model is further configured as follows: the extrusion block includes a push rod, one end of the push rod abuts against the bottom of the extrusion groove, the other end of the push rod passes through inner ring one and inner ring two and extends toward the axial direction of the bearing, and the end of the push rod away from the extrusion groove is connected to a pressure plate, the pressure plate is arc-shaped, and the inner plate surface of the pressure plate is extruded against the outer ring of the bearing.

[0011] The advantages of the utility model are:

[0012] The bearing seat is divided into a front cover and a rear cover, and the front cover and the rear cover are both provided with an inner ring and an outer ring. A screw is rotatably connected at the outer ring of the front cover, and a thread one is provided on the outer ring of the rear cover. A swivel is rotatably connected to the front cover and the rear cover. One end of the swivel is provided with an external rack and the other end is provided with a thread two. The external rack is meshed with the screw. Rotating the screw can drive the swivel to rotate. The thread two and the thread one are threadedly connected to each other. When the swivel is rotated to any angle, the position of the swivel can be fixed. A plurality of extrusion grooves are symmetrically provided on the inner side of the swivel. The bottom of the extrusion groove is involute shape. An extrusion block is abutted in the extrusion groove. When the screw is rotated, the swivel rotates, and the relative position of the extrusion block in the extrusion groove changes. The distance between the extrusion block and the axis changes, so that bearings of different sizes can be clamped together. When more extrusion blocks are provided, the pressure on the bearing can be dispersed, thereby reducing the deformation of the bearing outer ring. It has high adaptability and ensures the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0014] Figure 2 for Figure 1 The front view shown;

[0015] Figure 3 For the Figure 1 The AA line cross-section shown;

[0016] Figure 4 This is a schematic diagram of the back cover structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the swivel structure of the utility model;

[0018] In the figure: 1. Rear cover; 11. Mounting block 1; 12. Inner ring 1; 13. Thread 1; 2. Front cover; 21. Mounting block 2; 22. Inner ring 2; 3. Bearing; 4. Swivel; 41. Extrusion groove; 42. External rack; 43. Thread 2; 5. Screw; 6. Extrusion block; 61. Push rod; 62. Pressure plate. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0021] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0022] See also Figures 1-5 , the utility model provides the following technical solutions:

[0023] An adjustable bearing seat includes a rear cover 1, a front cover 2 being mounted on the rear cover 1, an inner ring 12 being disposed within the rear cover 1, and an inner ring 2 22 being correspondingly disposed within the front cover 2. The inner ring 12 and the inner ring 2 22 are of the same size and fit together. A swivel 4 is commonly connected to the rear cover 1 and the front cover 2. The inner ring surface of the swivel 4 is rotatably connected to both the inner ring 12 and the inner ring 2 22. A plurality of extrusion grooves 41 are symmetrically formed on the inner side of the swivel 4. The bottoms of the extrusion grooves 41 extend involutely away from the axis. An extrusion block 6 abuts the extrusion groove 41. The extrusion block 6 passes through the inner ring 12 and the inner ring 2 22 and extends toward the axis. The plurality of extrusion blocks 6 jointly clamp the bearing 3.

[0024] By rotating the swivel 4, the extrusion block 6 can be pushed to move through the extrusion groove 41, so that the relative position of the inner end of the extrusion block 6 and the axis center changes, thereby being able to adapt to the clamping requirements of bearings 3 of different sizes and ensuring the installation and fixation of the bearing 3. A larger number of extrusion blocks 6 can be provided to disperse the extrusion force at the contact point with the bearing 3, reduce the deformation of the outer ring of the bearing 3, and ensure the service life of the bearing 3.

[0025] A second mounting block 21 is provided on the outside of the front cover 2, and a first mounting block 11 is correspondingly provided on the outside of the rear cover 1. The second mounting block 21 and the first mounting block 11 rotate together and are connected to a screw 5. The axis of the screw 5 is on one side of the second mounting block 21. The two end faces of the swivel 4 are spaced apart from the inner end face of the rear cover 1 and the inner end face of the front cover 2, respectively. An external rack 42 is provided at one end of the swivel 4 inside the front cover 2. The external rack 42 is arranged around the outer circumference of the swivel 4, and the screw 5 is meshed with the external rack 42.

[0026] The rear cover 1 is provided with a thread 13, and the end of the rotating ring 4 away from the front cover 2 is provided with a thread 43, which is threadedly connected with the thread 13;

[0027] When the screw rod 5 is rotated, the rotating ring 4 can be driven to rotate through the external gear rack 42. When the rotating ring 4 rotates, the thread 43 rotates along the thread 13. The thread connection has a certain self-locking ability, which can instantly fix the position of the rotating ring 4, avoid the rotating ring 4 from moving due to the rotation, and ensure the stability of the bearing 3 clamping.

[0028] The screw rod 5 and the external gear rack 42 form a self-locking worm gear structure. The external gear rack 42 is difficult to drive the screw rod 5 to rotate, so that the rotating ring 4 is not easy to deflect when subjected to extrusion force and vibration force, thereby ensuring the stability of the bearing 3 installation.

[0029] The extrusion block 6 includes a push rod 61, one end of the push rod 61 abuts against the groove bottom of the extrusion groove 41, the push rod 61 is arranged along the radial direction of the preset bearing 3, the other end of the push rod 61 extends through the inner ring 12 and the inner ring 22 to the axial direction of the bearing 3, and the end of the push rod 61 away from the extrusion groove 41 is connected with a pressing plate 62. The extrusion groove 41 moves along the inner ring 12 and the inner ring 22 by pushing the push rod 61, thereby changing the distance between the pressing plate 62 and the shaft center. The pressing plate 62 is in the shape of a circular arc, the inner plate surface of the pressing plate 62 is extruded against the outer ring of the bearing 3, and the pressing plate 62 enlarges the stress area, thereby reducing the single-point extrusion force on the bearing 3.

[0030] Specifically, the bearing seat is divided into a front cover 2 and a rear cover 1, and the front cover 2 and the rear cover 1 are both provided with an inner ring and an outer ring. The outer ring of the front cover 2 is rotatably connected with a screw rod 5, and the outer ring of the rear cover 1 is provided with a thread 13. The front cover 2 and the rear cover 1 are both rotatably connected with a rotating ring 4, one end of the rotating ring 4 is provided with an external gear rack 42, and the other end is provided with a thread 43. The external gear rack 42 is engaged with the screw rod 5, and rotating the screw rod 5 can drive the rotating ring 4 to rotate. The thread 43 is threadedly connected with the thread 13, and the position of the rotating ring 4 can be fixed when the rotating ring 4 is rotated to any angle. The inner side of the rotating ring 4 is symmetrically provided with a plurality of extrusion grooves 41, the groove bottom of the extrusion groove 41 is in the shape of an involute, and the extrusion groove 41 abuts against an extrusion block 6. When the screw rod 5 is rotated, the rotating ring 4 rotates, the relative position of the extrusion block 6 in the extrusion groove 41 changes, and the distance between the extrusion block 6 and the shaft center changes, thereby being able to clamp bearings 3 of different sizes together. When the extrusion block 6 is arranged more, the pressure on the bearing 3 can be dispersed, thereby reducing the deformation of the outer ring of the bearing 3, and the adaptability is high while the service life of the bearing 3 is ensured.

[0031] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0032] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0033] It should be noted that the terms "first", "second", and the like, used in the specification and in the claims of the present application are intended to distinguish similar objects, but are not necessarily used to describe a particular sequence or order. It is to be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the present application described herein can be carried out in sequences other than those illustrated or described herein.

[0034] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable bearing block comprising a rear cover (1), characterised in that: The rear cover (1) is provided with a front cover (2), the rear cover (1) is provided with an inner ring one (12), the front cover (2) is provided with an inner ring two (22) correspondingly, the inner ring one (12) and the inner ring two (22) are same in size and are mutually spliced, the rear cover (1) and the front cover (2) are rotatably connected with a rotating ring (4), a plurality of extrusion grooves (41) are symmetrically formed in the inner side of the rotating ring (4), the groove bottom of the extrusion groove (41) is in the shape of an involute, an extrusion block (6) is abutted in the extrusion groove (41), the extrusion block (6) penetrates the inner ring one (12) and the inner ring two (22) and extends to the axial direction, and the plurality of extrusion blocks (6) clamp the bearing (3) together.

2. An adjustable bearing seat according to claim 1, wherein: The outer side of the front cover (2) is provided with a mounting block two (21), the outer side of the rear cover (1) is provided with a mounting block one (11) correspondingly, the mounting block two (21) and the mounting block one (11) are rotatably connected with a screw rod (5), the axial center of the screw rod (5) is on the side of the mounting block two (21), one end of the rotating ring (4) in the front cover (2) is provided with an external gear rack (42), the external gear rack (42) is arranged around the outer periphery of the rotating ring (4), and the screw rod (5) is engaged with the external gear rack (42).

3. An adjustable bearing seat according to claim 2, wherein: The rear cover (1) is provided with a thread one (13), one end of the rotating ring (4) away from the front cover (2) is provided with a thread two (43), and the thread two (43) is threadedly connected with the thread one (13).

4. An adjustable bearing seat according to claim 3, wherein: The two end faces of the rotating ring (4) are respectively arranged at intervals from the inner end face of the rear cover (1) and the inner end face of the front cover (2), and the screw rod (5) and the external gear rack (42) form a self-locking worm gear structure.

5. An adjustable bearing seat according to claim 1, wherein: The extrusion block (6) comprises a push rod (61), one end of the push rod (61) is abutted with the groove bottom of the extrusion groove (41), the other end of the push rod (61) penetrates the inner ring one (12) and the inner ring two (22) and extends to the axial direction of the bearing (3), one end of the push rod (61) away from the extrusion groove (41) is connected with a pressing plate (62), the pressing plate (62) is in the shape of a circular arc, and the inner plate face of the pressing plate (62) is extruded with the outer ring of the bearing (3).

Images