CN217705367U

CN217705367U - High stability truckle bearing fixed knot constructs

Info

Publication number: CN217705367U
Application number: CN202222018497.2U
Authority: CN
Inventors: 吴奇颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-01
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a high stability truckle bearing fixed knot constructs, include: the bearing is coaxially fixed in the caster, and the caster is arranged on the caster bracket through a bearing fixing component; the bearing fixing assembly comprises a fixing plug, a sleeve and a fastener, wherein a step surface is arranged at a position, close to one end, of the fixing plug, the fixing plug is inserted into the bearing along the other end, and the step surface is stopped at one side surface of the bearing; the sleeve is sleeved at the other end of the fixed plug and is stopped at the other side surface of the bearing; the fastener applies a clamping force to the fixing plug and the sleeve in a direction toward each other to lock the bearing to the caster bracket. This high stability truckle bearing fixed knot constructs adopts the fixed stopper of being made by rigid plastic material to use with the sleeve cooperation and comes fixing bearing for the stability and the life of truckle all improve greatly.

Description

High stability truckle bearing fixed knot constructs

Technical Field

The utility model relates to a truckle technical field, in particular to high stability truckle bearing fixed knot constructs.

Background

The caster comprises a movable caster, a fixed caster and a movable caster with a brake. Casters are commonly referred to as universal wheels, which are constructed to allow 360 degree rotation; rigid casters, also known as directional casters, have no swivel structure and cannot rotate. Two types of casters are commonly used, such as a cart having a front fixed caster and a rear movable caster adjacent to the pushing handrail.

The bearing is an important part of the caster, and the bearing determines the using performance of the caster. At present, the fixed mode of traditional truckle bearing adopts: the side covers are added on two sides of the caster, the side covers are generally made of general plastic (PP material), the middle part of the side covers is integrally formed with bearing plugs, the two sides of the bearing are propped against the two sides of the bearing through the bearing plugs on the two sides, and the side covers are locked on a caster bracket by screws. By adopting the structure fixing mode, when the caster wheel is subjected to lateral force or torsion, the acting force exerted on the bearing plug by the bearing can cause the bearing plug to deform and dent, so that the caster wheel can not normally run vertically and even can incline.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a high stability truckle bearing fixed knot constructs adopts the fixed stopper of making by the rigid plastic material to use fixing bearing with the sleeve cooperation for the stability and the life of truckle all improve greatly.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: a high-stability caster bearing fixing structure comprising: the bearing is coaxially fixed in the caster, and the caster is arranged on the caster bracket through a bearing fixing component; the bearing fixing assembly comprises a fixing plug, a sleeve and a fastener, wherein a step surface is arranged at a position, close to one end, of the fixing plug, the fixing plug is inserted into the bearing along the other end, and the step surface is stopped at one side surface of the bearing; the sleeve is sleeved at the other end of the fixed plug and stops at the other side face of the bearing; the fastener applies a clamping force to the fixing plug and the sleeve in a direction toward each other to lock the bearing to the caster bracket.

As a further improvement, the fixed plug is cylindrical, has a stopping portion located at one end, a socket portion located at the other end, and a middle inserting portion, the outer diameter of the stopping portion is greater than the outer diameter of the inserting portion, the step surface is formed towards the stopping portion on a terminal surface of the inserting portion.

As a further improvement, the outer diameter of the sleeve-joint part is matched with the inner diameter of the sleeve, and the outer diameter of the sleeve-joint part is not larger than the outer diameter of the insertion part.

As a further improvement of the utility model, the fixed plug and the sleeve are made of rigid plastic materials.

As a further improvement of the present invention, a through hole for the fastener to pass through is formed in the fixing plug.

As a further improvement of the present invention, the fastener is a bolt and a nut, the caster bracket is provided with two opposite ear plates, the caster is provided with two between the ear plates, one end of the bolt is inserted into the ear plate through the through hole and by the other side the ear plate is worn out, the nut is locked on the end of the bolt.

As a further improvement, the integral injection molding of the caster is coated on the outer ring of the bearing.

The beneficial effects of the utility model are that:

1. the utility model provides a high stability truckle bearing fixed knot constructs, adopts fixed stopper and sleeve cooperation to use to fix the bearing, and fixed stopper and sleeve are all made by rigid plastic material, and shock resistance and rigidity are showing and are promoting, and atress non-deformable for the stability and the life of truckle are all greatly improved;

2. according to the technical scheme, the assembly of the caster and the caster bracket is convenient to implement, one end of the fixed plug is directly inserted into the bearing and sleeved with the sleeve, and then the fixed plug is locked on the caster bracket by using the bolt, so that the assembly is convenient and rapid, and the production efficiency is improved;

3. this application accessible increases the wall thickness of fixed stopper, accomplishes littleer with the clearance between the polished rod portion of bolt and the fixed stopper to the noise reduction uses also more laborsaving when the truckle bears a burden simultaneously.

Drawings

Fig. 1 is a perspective view of the high stability caster bearing fixing structure of the present invention;

fig. 2 is a perspective view of the assembly of the caster, the bearing and the fixing plug in the high-stability caster bearing fixing structure of the present invention;

FIG. 3 is a perspective view of the assembly of the bearing, the fixing plug and the sleeve in the high stability caster bearing fixing structure of the present invention;

fig. 4 is a top view of the assembly of the bearing, the fixed plug and the sleeve in the high stability caster bearing fixing structure of the present invention;

fig. 5 is a perspective view of a plug and a sleeve fixed in the high-stability caster bearing fixing structure of the present invention;

fig. 6 is a schematic structural view of another embodiment of the fixing plug in the high-stability caster bearing fixing structure of the present invention.

The following description is made with reference to the accompanying drawings:

1. a caster bracket; 2. a caster wheel; 3. a bearing; 4. fixing the plug; 401. a step surface; 402. a stopper portion; 403. a socket joint part; 404. a plug-in part; 405. a through hole; 5. a sleeve; 6. and (4) bolts.

Detailed Description

The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.

Referring to fig. 1 to 5, the utility model provides a high stability truckle bearing fixed knot constructs, include: truckle support 1, truckle 2, bearing 3 and the fixed subassembly of bearing, bearing 3 coaxial fixation is in truckle 2, and truckle 2 is installed on truckle support 1 through the fixed subassembly of bearing.

Specifically, the bearing fixing assembly includes a fixing plug 4, a sleeve 5, and a fastener. The fixing plug 4 is a hollow cylinder, and has a stopper portion 402 located at one end, a socket portion 403 located at the other end, and an insertion portion 404 located in the middle, wherein the outer diameter of the stopper portion 402 is larger than that of the insertion portion 404, so that an annular step surface 401 is formed on one end surface of the stopper portion 402 facing the insertion portion 404.

Wherein, the outer diameter of the plug part 404 is matched with the inner diameter of the inner ring of the bearing 3; the outer diameter of the socket 403 is matched to the inner diameter of the sleeve 5, and the outer diameter of the socket 403 is not greater than the outer diameter of the socket 404. In this embodiment, the outer diameter of the socket 403 is preferably the same as the outer diameter of the socket 404.

Referring to fig. 3 to 5, the fixing plug 4 is inserted into the bearing 3 through the socket 403 and exposed to the outside through the inner circular hole of the bearing 3, so that the bearing 3 is sleeved on the socket 404, and the step 401 is stopped at one side of the bearing 3. The sleeve 5 is sleeved on the sleeve-joint part 403 and stops at the other side surface of the bearing 3. The fastener applies a clamping force to the fixing plug 4 and the sleeve 5 in a direction toward each other to lock the bearing 3 on the caster bracket 1.

The fastening member is a bolt 6 and a nut, and the fixing plug 4 has a through hole 405 for the bolt 6 to pass through. The truckle support 1 is provided with two relative otic placodes, and the truckle 2 setting that is equipped with fixed stopper 4 and sleeve 5 is between two otic placodes, and two otic placodes all have seted up the through-hole corresponding to through-hole 405. One end of the bolt 6 is inserted into the through hole 405 through the lug plate on one side and penetrates out through the lug plate on the other side, and a nut is screwed on the end of the bolt 6 to clamp and fix the plug 4 and the sleeve 5 through the two lug plates, so that the bearing 3 is fixed. Therefore, the technical scheme is very convenient and fast to assemble, and can improve the production efficiency.

In the embodiment, the fixed plug 4 and the sleeve 5 are made of rigid plastic materials, preferably PC materials, the impact strength and rigidity of the fixed plug 4 and the sleeve 5 are improved by a plurality of times compared with those of general-purpose plastics, and the fixed plug 4 and the sleeve 5 are used for fixing at a place where the bearing 3 is strong in bearing capacity and are not easy to deform, so that the stability and the service life of the caster are greatly improved; meanwhile, the fixed plug 4 and the sleeve 5 are made of less materials, so that the weight can be reduced, and the cost is saved.

In addition, adopt fixed stopper 4 among this technical scheme, through the wall thickness that increases fixed stopper 4, can accomplish littleer with the smooth rod portion of bolt 6 and the clearance between fixed stopper 4 to the noise reduction, and use also more laborsaving when truckle 2 bears a burden.

It should be noted that the outer diameter of the stopper 402 and the outer diameter of the sleeve 5 are both smaller than the outer diameter of the inner ring of the bearing 3, so that the step surface 401 and the end surface of the sleeve 5 only partially cover two sides of the inner ring of the bearing 3, thereby preventing excessive contact with the bearing 3 and causing the bearing 3 to rotate unsmoothly.

As another preferred embodiment of the present application, the stop portion 402, the inserting portion 404 and the sleeve portion 403 of the fixed plug 4 may also have gradually reduced outer diameters as shown in fig. 6, the inserting portion 404 is used for sleeving the bearing 3, and the length of the inserting portion 404 is consistent with the width of the inner ring of the bearing 3; the socket 403 is used to sleeve the sleeve 5.

Wherein, the caster wheel 2 is integrally formed and coated on the outer ring of the bearing 3 by adopting an injection molding process.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only a preferred embodiment of the invention, which can be embodied in many different forms and is therefore not limited to the specific embodiments disclosed above. While the invention has been described with reference to specific embodiments, it will be apparent to one skilled in the art that various changes and modifications can be made, and equivalents employed, without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. A high-stability caster bearing fixing structure comprises a caster bracket (1), a caster (2) and a bearing (3), wherein the bearing (3) is coaxially fixed in the caster (2), and the caster (2) is arranged on the caster bracket (1) through a bearing fixing component; the method is characterized in that: the bearing fixing assembly comprises a fixing plug (4), a sleeve (5) and a fastener, wherein a step surface (401) is arranged at a position, close to one end, of the fixing plug (4), the fixing plug (4) is inserted into the bearing (3) along the other end, and the step surface (401) is stopped on one side surface of the bearing (3); the sleeve (5) is sleeved on the other end of the fixed plug (4) and stops at the other side surface of the bearing (3); the fastening means exert a clamping force on the fixing plug (4) and the sleeve (5) in a direction towards each other to lock the bearing (3) on the caster bracket (1).

2. The high-stability caster bearing fixing structure as claimed in claim 1, wherein: the fixing plug (4) is cylindrical and is provided with a stopping portion (402) located at one end, a sleeving portion (403) located at the other end and an inserting portion (404) located in the middle, the outer diameter of the stopping portion (402) is larger than that of the inserting portion (404), and the step surface (401) is formed on one end face, facing the inserting portion (404), of the stopping portion (402).

3. The high-stability caster bearing fixing structure as claimed in claim 2, wherein: the outer diameter of the sleeve-connecting part (403) is matched with the inner diameter of the sleeve (5), and the outer diameter of the sleeve-connecting part (403) is not larger than that of the plug-in part (404).

4. The high-stability caster bearing fixing structure as set forth in claim 1, wherein: the fixed plug (4) and the sleeve (5) are both made of rigid plastic materials.

5. The high-stability caster bearing fixing structure as claimed in claim 1, wherein: and a through hole (405) for the fastener to pass through is formed in the fixing plug (4).

6. The high-stability caster bearing fixing structure as set forth in claim 5, wherein: the fastener is bolt (6) and nut, truckle support (1) is provided with two relative otic placodes, truckle (2) set up two between the otic placode, one end of bolt (6) is by one side the otic placode inserts through hole (405) and by the opposite side the otic placode is worn out, the nut locking is in on this end of bolt (6).

7. The high-stability caster bearing fixing structure as claimed in claim 1, wherein: the caster (2) is integrally coated on the outer ring of the bearing (3) in an injection molding way.