Anti-deformation self-lubricating shaft sleeve structure

Abstract

The utility model provides an anti-deformation self-lubricating shaft sleeve structure, and belongs to the technical field of shaft sleeves. Comprising a shaft sleeve, a plurality of vertical reinforcing ribs are constructed on the outer surface of the shaft sleeve, the outer side of the shaft sleeve is sleeved with a protective cylinder, a buffer space is reserved between the protective cylinder and the outer surface of the shaft sleeve under the erection of the reinforcing ribs, and a limiting ring is detachably fixed to the lower end of the shaft sleeve. The limiting ring abuts against the lower end opening of the protection cylinder to form limiting. A plurality of sliding grooves are formed in the inner side of the protection cylinder. The outer side edges of the reinforcing ribs are embedded into the sliding grooves in a sliding mode. An external thread part is constructed on the outer edge face of the lower end opening of the shaft sleeve, an internal thread part is constructed on the inner wall of the limiting ring, and the external thread part is in threaded fit with the internal thread part. According to the utility model, not only is a good anti-deformation effect achieved, but also automatic lubrication can be achieved, and the overall using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of bushings, and particularly relates to a self-lubricating bushing structure with anti-deformation performance. Background Art

[0002] In the field of mechanical manufacturing, as a key component for connecting and supporting shafts, the performance of bushings directly affects the stability and service life of mechanical equipment.

[0003] Currently, when the outer surface of the existing bushing bears an external force, due to insufficient rigidity of the material or unreasonable structural design, its outer surface is prone to plastic deformation, resulting in the scrapping of the entire bushing. Especially in harsh environments of high temperature and high pressure, this deformation phenomenon is more serious.

[0004] Therefore, this application provides a self-lubricating bushing structure with anti-deformation performance to solve the above technical problems. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a self-lubricating bushing structure with anti-deformation performance to solve the problem that the existing bushing is prone to deformation and scrapping under force.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] A self-lubricating bushing structure with anti-deformation performance, including a bushing cylinder. A plurality of vertical reinforcing ribs are formed on the outer surface of the bushing cylinder. A protective cylinder is sleeved outside the bushing cylinder. A buffer space is left between the protective cylinder and the outer surface of the bushing cylinder under the erection of the reinforcing ribs. And a limiting ring is detachably fixed at the lower end of the bushing cylinder, and the limiting ring abuts against the lower port of the protective cylinder to form a limit.

[0008] Optionally, a plurality of sliding grooves are formed on the inner side of the protective cylinder.

[0009] Optionally, the outer side edges of the reinforcing ribs are slidably inserted into the sliding grooves.

[0010] Optionally, an external thread portion is formed on the outer edge surface of the lower port of the bushing cylinder, and an internal thread portion is formed on the inner wall of the limiting ring. The external thread portion is in threaded fit with the internal thread portion.

[0011] Optionally, fixing holes are formed on the inner wall of the bushing cylinder. An activity seat is elastically installed in the fixing holes, and a graphite rod extending towards the middle of the bushing cylinder is fixed on the activity seat.

[0012] Optionally, the fixing holes are hole structures that are inclined downward in the middle of the inner wall of the bushing cylinder. Springs are fixed in the fixing holes. The springs are connected to the activity seats and elastically push the activity seats outwards towards the ports of the fixing holes.

[0013] Optionally, a vertical insertion shaft is fixed to one side of the movable seat away from the bottom of the fixed hole, and the graphite rod is inserted and fixed on the insertion shaft of the movable seat.

[0014] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0015] In the above solution, thanks to the cooperation of the shaft sleeve, the reinforcing rib, the protective cylinder and the limiting ring, the reinforcing rib can be used to strengthen the strength of the shaft sleeve, improve the anti-deformation effect of the shaft sleeve. At the same time, by installing the protective cylinder on the outside of the shaft sleeve through the reinforcing rib and the limiting ring, the protective cylinder can protect the shaft sleeve, and the gap between the shaft sleeve and the protective cylinder is used as the deformation space of the protective cylinder, so that when the protective cylinder protects the shaft sleeve from deforming under external force, it will not affect the shaft sleeve, further avoiding the formation of the shaft sleeve, and facilitating the replacement of the protective cylinder to avoid the scrapping of the entire shaft sleeve.

[0016] In the above solution, thanks to the cooperation of the fixed hole, the spring, the movable seat and the graphite rod, by elastically installing the graphite rod on the inner wall of the shaft sleeve, the graphite rod can abut against the shaft surface passing through the middle of the shaft sleeve, thereby achieving the effect of self-lubrication.

[0017] In summary, the present device not only has a good anti-deformation effect, but also can automatically lubricate, and the overall use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present utility model, and together with the specification are further used to explain the principles of the present utility model and enable those skilled in the relevant art to implement and use the present utility model.

[0019] Figure 1 It is a schematic structural diagram of an anti-deformation self-lubricating shaft sleeve structure;

[0020] Figure 2 It is a schematic structural diagram of the shaft sleeve of the anti-deformation self-lubricating shaft sleeve structure;

[0021] Figure 3 It is a schematic structural diagram of the protective cylinder of the anti-deformation self-lubricating shaft sleeve structure;

[0022] Figure 4 It is a schematic internal structure diagram of the shaft sleeve of the anti-deformation self-lubricating shaft sleeve structure.

[0023] [Reference Signs]

[0024] 1. Axle sleeve; 101. Reinforcing rib; 102. External thread portion; 2. Protective cylinder; 201. Slide groove; 3. Limit ring; 301. Internal thread portion; 4. Fixing hole; 5. Spring; 6. Movable seat; 7. Graphite rod.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed implementation manners

[0026] The following will describe in detail a self-lubricating bushing structure with anti-deformation provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0027] It should be pointed out that in the specification, when referring to "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc., it indicates that the described embodiment may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, when combining embodiments to describe specific features, structures or characteristics, implementing such features, structures or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0028] Generally, terms can be understood at least in part from their use in the context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure or characteristic in a singular sense, or can be used to describe a combination of features, structures or characteristics in a plural sense. In addition, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, allowing for the existence of other factors that may not be explicitly described.

[0029] It can be understood that the meanings of "on...", "above...", and "over..." in the present invention should be interpreted in the broadest manner, so that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intermediate features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intermediate features or layers therebetween.

[0030] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0031] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a self-lubricating shaft sleeve structure that resists deformation, including a shaft sleeve 1, wherein the outer surface of the shaft sleeve 1 is configured with a plurality of vertical reinforcing ribs 101, which can strengthen the strength of the shaft sleeve 1 and improve its anti-deformation effect.

[0032] At the same time, cooperate Figure 3 As shown, a protective cylinder 2 is sleeved on the outer side of the shaft sleeve 1, and a plurality of slide grooves 201 are provided on the inner side of the protective cylinder 2. A portion of the outer side edge of the reinforcing rib 101 is slidably embedded in the slide groove 201, so that the protective cylinder 2 can be erected through the reinforcing rib 101, and a buffer space is left between the protective cylinder 2 and the outer surface of the shaft sleeve 1, so that the protective cylinder 2 can protect the shaft sleeve 1, and a deformation space of the protective cylinder 2 is reserved to prevent the protective cylinder 2 from being deformed by force and affecting the shaft sleeve 1.

[0033] In addition, a limit ring 3 is detachably fixed at the lower end of the shaft sleeve 1, and the limit ring 3 abuts against the lower end of the protective tube 2 to form a limit. Specifically, the outer edge surface of the lower end of the shaft sleeve 1 is configured with an external threaded portion 102, and the inner wall of the limit ring 3 is configured with an internal threaded portion 301. The external threaded portion 102 is threadedly matched with the internal threaded portion 301 to install the limit ring 3 at the lower end of the protective tube 2 to limit and fix the protective tube 2.

[0034] Cooperate Figure 4 As shown, a fixing hole 4 is provided on the inner wall of the shaft sleeve 1, and a movable seat 6 is elastically installed in the fixing hole 4. A vertical plug shaft is fixed to the side of the movable seat 6 away from the bottom of the fixing hole 4, and a graphite rod 7 extending toward the middle of the shaft sleeve 1 is fixed on the plug shaft. In a specific implementation, the fixing hole 4 is a hole structure opened in the middle of the inner wall of the shaft sleeve 1 and tilted downward. A spring 5 is fixed in the fixing hole 4, and the spring 5 is connected to the movable seat 6, and elastically pushes the movable seat 6 out of the port of the fixing hole 4.

[0035] The working principle provided by the present utility model, for the self-lubricating bushing structure with anti-deformation, during use, the reinforcing rib 101 can be utilized to enhance the strength of the bushing sleeve 1, improving the anti-deformation effect of the bushing sleeve 1. At the same time, by installing the protective cylinder 2 on the outer side of the bushing sleeve 1 through the reinforcing rib 101 and the limiting ring 3, the protective cylinder 2 can protect the bushing sleeve 1, and the gap between the bushing sleeve 1 and the protective cylinder 2 serves as the deformation space for the protective cylinder 2. When the protective cylinder 2 protects the bushing sleeve 1 from deforming under external force, it will not affect the bushing sleeve 1, further avoiding the formation of deformation of the bushing sleeve 1 and facilitating the replacement of the protective cylinder 2 to prevent the entire bushing from being scrapped.

[0036] In addition, by elastically installing the graphite rod 7 on the inner wall of the bushing sleeve 1, the graphite rod 7 can be made to abut against the shaft surface passing through the middle of the bushing sleeve 1, thereby achieving the effect of self-lubrication.

[0037] In summary, the present device not only has a good anti-deformation effect but also can be automatically lubricated, with an overall good use effect.

[0038] The present utility model covers any substitutions, modifications, equivalent methods, and solutions made within the essence and scope of the present utility model. To enable the public to have a thorough understanding of the present utility model, specific details are described in detail in the following preferred embodiments of the present utility model. However, those skilled in the art can fully understand the present utility model even without these detailed descriptions. Additionally, to avoid unnecessary confusion to the essence of the present utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0039] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A self-lubricating shaft sleeve structure that resists deformation, comprising a shaft sleeve (1), characterized in that: The outer surface of the shaft sleeve (1) is constructed with a plurality of vertical reinforcing ribs (101); a protective sleeve (2) is sleeved on the outer side of the shaft sleeve (1); a buffer space is left between the protective sleeve (2) and the outer surface of the shaft sleeve (1) under the support of the reinforcing ribs (101); and a limit ring (3) is detachably fixed at the lower end of the shaft sleeve (1); the limit ring (3) abuts against the lower end of the protective sleeve (2) to form a limit.

2. The anti-deformation self-lubricating sleeve structure according to claim 1, characterized in that: A plurality of slide grooves (201) are provided on the inner side of the protective tube (2).

3. The anti-deformation self-lubricating sleeve structure according to claim 2, characterized in that: The outer side edge of the reinforcing rib (101) is slidably embedded in the sliding groove (201).

4. The anti-deformation self-lubricating sleeve structure according to claim 1, characterized in that: The outer edge surface of the lower port of the shaft sleeve (1) is configured with an external threaded portion (102), the inner wall of the limiting ring (3) is configured with an internal threaded portion (301), and the external threaded portion (102) is threadably matched with the internal threaded portion (301).

5. The anti-deformation self-lubricating sleeve structure according to claim 1, characterized in that: A fixing hole (4) is provided on the inner wall of the shaft sleeve (1), a movable seat (6) is elastically installed in the fixing hole (4), and a graphite rod (7) extending toward the middle of the shaft sleeve (1) is fixed on the movable seat (6).

6. The anti-deformation self-lubricating sleeve structure according to claim 5, characterized in that: The fixing hole (4) is a hole structure which is opened in the middle of the inner wall of the shaft sleeve (1) and is inclined downward. A spring (5) is fixed in the fixing hole (4). The spring (5) is connected to the movable seat (6) and elastically pushes the movable seat (6) out of the end of the fixing hole (4).

7. The anti-deformation self-lubricating sleeve structure according to claim 6, characterized in that: A vertical insertion shaft is fixed on one side of the movable seat (6) away from the bottom of the fixing hole (4), and the graphite rod (7) is plugged and fixed on the insertion shaft on the movable seat (6).

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