CN218708404U - Axle head fastening structure for roller cage shoe - Google Patents

Abstract

The utility model discloses a shaft end fastening structure for gyro wheel cage shoe, include: the external thread is positioned at the extending end of the roller shaft; the locking nut is positioned at the extending end of the roller shaft and is locked with the external thread; wherein: the locking nut comprises a middle piece, two connecting plates extend from two ends of the middle piece respectively, a gap is reserved between the two connecting plates, threaded holes which are of a matched structure with the external threads are formed in the connecting plates, and an intersection exists between the two threaded holes in the vertical direction. Therefore, the two threaded holes are slightly misaligned in the vertical direction, and after the external thread is screwed into the two threaded holes, the shaft end with the external thread can be clamped or blocked on a deformed threaded passage formed by the two threaded holes, so that the roller shaft end and the lock nut are in a fastening state in the roller bearing process, and the phenomenon that the roller shaft end is loosened is reduced.

Description

Axle head fastening structure for roller cage shoe

Technical Field

The utility model relates to a gyro wheel cage shoe technical field, concretely relates to axle head fastening structure for gyro wheel cage shoe.

Background

The roller cage shoe mainly comprises a wheel set, a base, a vertical frame, a shock absorber and the like. The rolling wheel body is a novel full-sealing structure and is arranged on the vertical frame.

Generally speaking, the axle that ear is irritated to current gyro wheel is used for fixed gyro wheel is generally fixed on the mount through a nut, and the frictional force between the axle of fixed gyro wheel and the mount is less, because the gyro wheel needs the pressure-bearing, and the pressure that the gyro wheel received can let the bolt excessively atress, leads to the axle head to fix not hard up easily, and then leads to the axle of fixed gyro wheel to break away from with the mount.

We have intensively studied the above-mentioned cause of loosening of the shaft end and have provided a shaft end fastening structure for a roller lug to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

To the problem that above-mentioned prior art exists, the utility model aims to provide a shaft end fastening structure for gyro wheel cage shoe guarantees at gyro wheel pressure-bearing in-process, and the gyro wheel axle head is in the fastening state with the nut, and the not hard up phenomenon of reduction gyro wheel axle head takes place.

In order to realize above-mentioned purpose, the utility model discloses a pair of axle head fastening structure for gyro wheel cage shoe, include:

the external thread is positioned at the extending end of the roller shaft;

the locking nut is positioned at the extending end of the roller shaft and is locked with the external thread; wherein:

the locking nut comprises a middle piece, two connecting plates extend from two ends of the middle piece respectively, a gap is reserved between the two connecting plates, threaded holes which are of a matched structure with the external threads are formed in the connecting plates, and an intersection exists between the two threaded holes in the vertical direction.

By the aforesaid, above-mentioned two screw holes are misaligned slightly in the vertical direction, consequently, after the external screw thread screwed into above-mentioned two screw holes, this axle head that possesses the external screw thread can block or block on the deformation thread way that constitutes by two screw holes to will guarantee at gyro wheel pressure-bearing in-process, gyro wheel axle head and lock nut are in fastening state, and the not hard up phenomenon of reduction gyro wheel axle head takes place.

As a further optimization of the scheme, the arc-shaped buffer piece is clamped in the gap. The arc-shaped buffer piece is designed to ensure that the nut determines certain buffering capacity so as to deal with the pressure transmitted to the shaft end.

As a further optimization of the above scheme, the intermediate member is in an arc shape, and the arc-shaped intermediate member can enable the locking nut to bend to a certain extent after being pressed, so that compared with a right-angle structure, the metal fracture phenomenon is less prone to occur after being pressed.

As the further optimization of above-mentioned scheme, above-mentioned connecting plate overhang end bottom is equipped with the inclined plane of outside-in slope, and the side of above-mentioned arc bolster is the cooperation structure with this inclined plane, and above-mentioned arc bolster possesses two kinds of schemes of placing, and the first one is close to the setting of connecting plate overhang end, and is not high to the requirement of arc bolster bending part, easily preparation, simultaneously, in this scheme, owing to adopt the inclined plane structure, above-mentioned arc bolster is great with the area of contact of connecting plate to promote the above the utility model discloses well lock nut's compressive capacity.

As a further optimization of the above scheme, one end of the arc-shaped buffer member departing from the gap opening is attached to the intermediate member. As the second placing scheme of the arc-shaped buffering member, in the scheme, the arc-shaped buffering member is arranged at the other end of the connecting plate and attached to the middle member, so that the requirement on the bending part of the arc-shaped buffering member is high, the arc-shaped buffering member needs to be attached to the middle member, and the buffering effect is better compared with that of the suspension end of the connecting plate.

As the further optimization of above-mentioned scheme, one side that above-mentioned arc bolster deviates from the middleware is equipped with the opening, is connected with the support locating part on this opening, and the aforesaid supports the setting of locating part to further promote the buffering effect of above-mentioned arc bolster.

As a further optimization of the above scheme, the supporting and limiting member is provided with a fixing ring, the fixing ring and the external thread are of a matching structure, and the supporting and limiting member has a limiting and locking function of limiting the roller shaft through the fixing ring sleeved on the external thread.

The utility model discloses a shaft end fastening structure for gyro wheel cage shoe possesses following beneficial effect:

1) Through above-mentioned structure, above-mentioned two screw holes are misaligned slightly in the vertical direction, consequently, after the external screw thread twists above-mentioned two screw holes, this axle head that possesses the external screw thread can block or block on the deformation thread way that constitutes by two screw holes to will guarantee at gyro wheel pressure-bearing in-process, gyro wheel axle head and lock nut are in fastening state, and the not hard up phenomenon of reduction gyro wheel axle head takes place.

2) On the basis of the structure, the arc-shaped buffer piece is arranged between the two connecting plates, the arc-shaped buffer piece has two placing schemes, one placing scheme is that the arc-shaped buffer piece is placed at the overhanging end of the connecting plate, the bending part of the arc-shaped buffer piece of the structure has low requirement, and the arc-shaped buffer piece is easy to manufacture; in another placing scheme, the arc-shaped buffering parts are arranged at the other end of the connecting plate and attached to the middle part, the requirements on the bending parts of the arc-shaped buffering parts are high, the arc-shaped buffering parts need to be attached to the middle part, and the buffering effect is better than that of the arc-shaped buffering parts arranged at the overhanging end of the connecting plate.

3) On the basis of the second placement scheme of the arc-shaped buffer part, the supporting and limiting part is arranged on the arc-shaped buffer part, and the limiting and locking functions of the roller shaft are realized by utilizing the fixing ring on the supporting and limiting part while the buffering effect of the arc-shaped buffer part is improved.

There have been disclosed in detail certain embodiments of the invention with reference to the following description and drawings, and it is to be understood that the embodiments of the invention are not limited thereby, but are capable of numerous changes, modifications and equivalents within the spirit and terms of the appended claims.

Drawings

FIG. 1 is a schematic structural view of a shaft end fastening structure for a roller cage shoe;

fig. 2 is a schematic view of the overall structure of the lock nut of the present invention;

FIG. 3 is a front view of a locking nut in a first placement;

fig. 4 is a front view of the lock nut in the second placement mode.

In the figure: 1. a roller shaft; 2. an external thread; 3. locking the nut; 4. supporting a limiting part; 31. a middleware; 32. A connecting plate; 33. a gap; 34. an arc-shaped buffer member; 41. a fixing ring; 322. a bevel; 341. and (4) opening.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail by the embodiments and the accompanying drawings. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.

It is noted that when an element is referred to as being "disposed on," or provided with "another element, it can be directly on, or intervening elements may also be present, when an element is referred to as being" connected, "or coupled to another element, it can be directly on, or coupled to, the other element, or intervening elements may also be present, and that" fixedly coupled "means fixedly coupled or coupled in any number of ways, not intended to be within the scope of the disclosure, and that the terms" vertical, "" horizontal, "" left, "" right, "and the like are used herein for illustrative purposes only and are not intended to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items;

referring to the attached drawings 1-4 of the specification, the utility model provides a technical scheme: a shaft end fastening structure for a roller cage shoe.

Referring to fig. 1, fig. 1 shows a schematic of a roller assembly having a shaft end fastening structure, such as for a roller cage shoe.

The roller assembly is referred to by a plurality of terms, such as roller and roller shaft 1, the protruding end of the roller shaft 1 is provided with a threaded section having an external thread 2, and a locking nut 3 is locked on the threaded section.

It should be noted that the lock nut 3 is one of the cores of the present invention.

Referring to fig. 2, which is a schematic view showing the overall structure of a first embodiment of the lock nut 3, in general, the lock nut 3 has only one threaded hole, and the locking operation of the roller shaft 1 is realized by tightening the threaded hole with the external thread 2, but the locking effect of the lock nut 3 is limited, and for this reason, the lock nut 3 will be further discussed with reference to fig. 2:

the locking nut 3 includes an intermediate member 31, two connecting plates 32 respectively extending from both ends of the intermediate member 31, a gap 33 being left between the two connecting plates 32, and a threaded hole 321 having a structure matching with the external thread 2 being provided in the connecting plate 32, the two threaded holes 321 having an intersection in the vertical direction. That is, the two threaded holes are slightly misaligned in the vertical direction, so that after the shaft end with the external thread 2 is screwed into the two threaded holes, the shaft end with the external thread 2 is clamped or blocked on a deformed threaded passage formed by the two threaded holes, thereby ensuring that the end of the roller shaft 1 and the lock nut 3 are in a fastening state in the roller bearing process, and reducing the phenomenon that the end of the roller shaft 1 is loosened.

Referring to fig. 3 and 4, and the schematic front view structure of the second embodiment of the locking nut 3 shown in fig. 3 and 4, generally speaking, the locking nut 3 is a one-piece structure, which has no buffering function and poor impact resistance, and therefore, on the basis of the structure of the first embodiment of the locking nut 3, the following improvements are made:

further, in the above-described modification, an arc-shaped cushion member 34 is interposed in the gap 33, and the intermediate member 31 of the locknut 3 has an arc shape. Thus, the arc cushion 34 has two placement modes.

With reference to fig. 3, this fig. 3 is the first mode of placing of above-mentioned arc bolster 34, and is concrete, and above-mentioned connecting plate 32 overhang end bottom is equipped with outside-in slope's inclined plane 322, and the side of above-mentioned arc bolster 34 is the cooperation structure with this inclined plane 322, and the first mode of placing is close to connecting plate 32 overhang end setting, and it is not high to require the curved part of arc bolster 34, easily preparation, and simultaneously, in this scheme, owing to adopt inclined plane 322 structure, above-mentioned arc bolster 34 is great with connecting plate 32's area of contact, thereby promotes the above the utility model discloses well lock nut 3's compressive capacity.

Referring to fig. 4, the second placement manner of the arc-shaped buffering member 34 is shown in fig. 4, specifically, one end of the arc-shaped buffering member 34 away from the opening of the gap 33 is attached to the intermediate member 31, and the curved portion of the arc-shaped buffering member 34 has a high requirement and needs to be attached to the intermediate member 31, but the buffering effect is better than that of the end of the arc-shaped buffering member which is disposed at the overhanging end of the connecting plate 32.

In some embodiments, in order to further enhance the buffering effect of the arc-shaped buffering member 34 in the second embodiment, an opening 341 is reserved in the middle of the arc-shaped buffering member 34, the opening 341 is connected to a supporting and limiting member 4, a fixing ring 41 is disposed on the supporting and limiting member 4, and the fixing ring 41 and the external thread 2 are a matching structure. When the buffering effect of the arc-shaped buffering piece 34 is improved, the limiting and locking functions of the roller shaft are realized by utilizing the fixing rings on the supporting limiting pieces.

It should be understood, however, that the intention is not to limit the invention to the particular embodiments described, but to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims (7)

1. The utility model provides a shaft end fastening structure for gyro wheel cage shoe, its characterized in that includes:

the external thread (2) is positioned at the extending end of the roller shaft (1);

the locking nut (3) is positioned at the extending end of the roller shaft (1) and is locked with the external thread (2); wherein:

the locking nut (3) comprises an intermediate piece (31), two connecting plates (32) extend from two ends of the intermediate piece (31) respectively, a gap (33) is reserved between the two connecting plates (32), a threaded hole (321) which is matched with the external thread (2) is formed in each connecting plate (32), and an intersection exists between the two threaded holes (321) in the vertical direction.

2. The axle-end fastening structure for roller ears as defined in claim 1, wherein: an arc-shaped buffer member (34) is sandwiched in the gap (33).

3. The axle-end fastening structure for roller ears as defined in claim 2, wherein: the intermediate member (31) is arc-shaped.

4. The axle-end fastening structure for roller ears as defined in claim 3, wherein: the bottom of the overhanging end of the connecting plate (32) is provided with an inclined plane (322) which inclines from outside to inside, and the side surface of the arc-shaped buffer piece (34) and the inclined plane (322) are in a matching structure.

5. The axle-end fastening structure for roller ears as defined in claim 3, wherein: one end of the arc-shaped buffer piece (34) departing from the opening of the gap (33) is attached to the middle piece (31).

6. The axle-end fastening structure for roller ears as defined in claim 4, wherein: an opening (341) is formed in one side, away from the middle piece (31), of the arc-shaped buffering piece (34), and a supporting limiting piece (4) is connected to the opening (341).

7. The axle-end fastening structure for the roller lug as recited in claim 6, wherein: the supporting and limiting part (4) is provided with a fixing ring (41), and the fixing ring (41) and the external thread (2) are of a matching structure.

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