Spring oiling and lubricating device applied to rotating shaft

Abstract

The utility model discloses a spring oil injection lubricating device for application on the pivot, including the inner shaft sleeve of setting in the both ends of pivot, the inner shaft sleeve and pivot are for interference fit, the inner shaft sleeve sets up the outer shaft sleeve, the outer shaft sleeve and inner shaft sleeve are for clearance fit, the outer shaft sleeve sets up on the support, the outside of outer shaft sleeve is provided with first gasket, first gasket engages in the support, be provided with first sealing washer between first gasket and the inboard of support, first sealing washer and pivot close contact, the other side of outer shaft sleeve is provided with a pair of small axle sleeve, be provided with a plurality of second gaskets between a pair of small axle sleeve, the spring of setting up on small axle sleeve, be provided with second sealing washer, wave spring gasket respectively between spring and outer shaft sleeve, the utility model discloses through the tool compression spring, and wave spring gasket will naturally open and will sealing washer open to the inside injection lubricating oil is convenient to the pivot oil injection lubricating maintenance is realized.

Description

Technical Field

[0001] This utility model relates to the field of shaft lubrication technology, specifically to a spring-lubricated oil lubrication device applied to shafts. Background Technology

[0002] In foot-operated game controllers, the force exerted by the foot is relatively large, unlike hand-operated controllers which can be operated with a light touch. Therefore, in foot-operated game controllers, the pivot controlled by the foot is mounted on a pair of supports, forming a sliding friction pair between the pivot and the supports. Rotation is achieved through sliding, thus requiring lubrication and maintenance.

[0003] Therefore, existing technologies are insufficient to meet user needs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a spring oil injection lubrication device for rotating shafts, which addresses the limitations of existing technology. By using a tool to pull up or lift the spring, the wave spring washer will naturally spring open due to the lack of external pressure, thus opening the sealing ring and exposing the oil injection gap, making it convenient to inject lubricating oil into the interior, thereby realizing the oil injection lubrication maintenance of the rotating shaft.

[0005] The technical solution adopted by this utility model to solve the technical problem is as follows: A spring-loaded oil lubrication device for use on a rotating shaft, comprising: Inner bushings are fitted at both ends of a rotating shaft, with an interference fit between the inner bushings and the rotating shaft. An outer bushing is fitted onto the inner bushing, with a clearance fit between the outer bushing and the inner bushing. The outer bushing is mounted on a bracket, with an interference fit between the outer bushing and the bracket. A first gasket is provided on the outer side of the outer bushing. The first gasket is engaged in the bracket. A first sealing ring is provided between the first gasket and the inner side of the bracket. The first sealing ring is tightly fitted to the rotating shaft. A pair of small bushings are provided on the other side of the outer bushing. Several second gaskets are provided between the pair of small bushings. The outer diameter of the small bushings and the second gaskets are the same. A spring is fitted on the small bushing. A second sealing ring and a wave spring gasket are respectively provided between the spring and the outer bushing. One end of the wave spring gasket abuts against the second sealing ring and the other end abuts against the outer bushing. The second sealing ring is tightly fitted to the bracket under the action of the spring.

[0006] Preferably, a third gasket is provided on both the left and right sides of the second sealing ring.

[0007] Preferably, two wave spring washers are provided, and a fourth washer is provided between the two wave spring washers.

[0008] Preferably, when no force is applied, the elastic force of the spring is greater than the elastic force of the wave spring washer.

[0009] Preferably, the small bushing and the rotating shaft are interference fit.

[0010] Preferably, the inner bushing abuts against the first gasket to prevent the rotating shaft from moving relative to the bracket along the axial direction.

[0011] Preferably, the first sealing ring is an O-ring.

[0012] Preferably, the second sealing ring is a rectangular sealing ring.

[0013] Preferably, the outer diameter of the second sealing ring is larger than the outer diameter of the first sealing ring.

[0014] Preferably, the thickness of the second gasket is less than the thickness of the first gasket.

[0015] Compared with the prior art, the spring-loaded oil lubrication device for rotating shafts provided by this utility model has the following advantages: Under normal circumstances, the spring force is greater than that of the wave spring washer. The wave spring washer is compressed and flattened. At this time, the second sealing ring, squeezed from both ends, begins to expand radially, thus sealing the small bushing and the bracket. The interference fit between the small bushing and the shaft also provides a seal, thereby sealing the inner and outer bushings. Lubricating oil can be stored inside to lubricate the sliding friction pair, thus extending the service life of the shaft. When lubricating oil needs to be added, the spring is pulled up or pried up with a tool. The wave spring washer, no longer under external pressure, naturally springs open, opening the second sealing ring and exposing the oil injection gap, making it easy to inject lubricating oil inside. Attached Figure Description

[0016] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below: Figure 1 This is a schematic diagram of an embodiment of a spring-lubricating device for use on a rotating shaft, wherein the spring is in a compressed state.

[0017] Figure 2 This is a schematic diagram of an embodiment of a spring-lubricating device for rotating shafts, mounted on a bracket, wherein the spring is in a compressed state.

[0018] Figure 3 This is a partial cross-sectional view of an embodiment of a spring-lubricating device for rotating shafts, mounted on a bracket, wherein the spring is in a compressed state.

[0019] Figure 4This is a partial schematic diagram of the wave spring washer springing up in a spring oil lubrication device applied to a rotating shaft according to this utility model, wherein the spring is in a compressed state.

[0020] Figure 5 This is a partial schematic diagram of the wave spring washer after being compressed by the spring force in a spring-lubricating device for rotating shafts according to this utility model.

[0021] Figure 6 This is a schematic diagram of the sealing effect of a spring oil injection lubrication device applied to a rotating shaft according to the present invention. The bracket 20 is half-sectioned, and area A is a gap area that can store a certain amount of lubricating oil.

[0022] 10-Shaft, 20-Bracket, 100-Inner bushing, 200-Outer bushing, 300-First gasket, 400-First sealing ring, 500-Small bushing, 600-Second gasket, 700-Spring, 800-Second sealing ring, 900-Wave spring gasket, 101-Third gasket, 102-Fourth gasket. Detailed Implementation

[0023] Unless otherwise defined, 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 application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0025] This utility model embodiment provides a spring-lubricating device for use on rotating shafts, such as... Figures 1 to 4As shown, it includes: an inner bushing 100 sleeved at both ends of a rotating shaft 10, the inner bushing 100 and the rotating shaft 10 having an interference fit; an outer bushing 200 sleeved on the inner bushing 100, the outer bushing 200 and the inner bushing 100 having a clearance fit; the outer bushing 200 mounted on a bracket 20, the outer bushing 200 and the bracket 20 having an interference fit; a first gasket 300 is provided on the outer side of the outer bushing 200, the first gasket 300 is engaged within the bracket 20, and a first sealing ring 400 is provided between the first gasket 300 and the inner side of the bracket 20. A pair of small bushings 500 are provided on the other side of the outer bushing 200, which is tightly fitted to the rotating shaft 10. Several second washers 600 are provided between the two small bushings 500. The outer diameter of the small bushings 500 and the second washers 600 are the same. A spring 700 is fitted on each small bushing 500. A second sealing ring 800 and a wave spring washer 900 are respectively provided between the spring 700 and the outer bushing 200. One end of the wave spring washer 900 abuts against the second sealing ring 800, and the other end abuts against the outer bushing 200. The second sealing ring 800 is tightly fitted inside the bracket 20 under the action of the spring 700. Figure 5 , Figure 6 As shown.

[0026] The outer bushing 200 and the inner bushing 100 are clearance fits, forming a sliding friction pair. The inner bushing 100 is interference fit with the rotating shaft 10. The first gasket 300 is placed inside the bracket 20. There is a gap between the rotating shaft 10 and the bracket 20, so a first sealing ring 400 needs to be placed. On the one hand, the first sealing ring 400 fits tightly with the rotating shaft 10, and on the other hand, the first sealing ring 400 is pressed and fitted with the bracket 20 and the first gasket 300, thereby achieving a seal on the outside of the bracket 20. To prevent the inner bushing 100 from sliding relative to the rotating shaft 10 along the axis, a small bushing 500 with several second shims 600 is placed on the rotating shaft 10. This not only prevents the inner bushing 100 from sliding inward along the axis, but also adjusts the gap between the inner bushing 100 and the first shim 300. That is, by adjusting the number of second shims 600, the inner bushing 100 is made to abut against the first shim 300, thereby preventing the rotating shaft 10 from moving relative to the bracket 20 along the axial direction. The second shims 600 are relatively thin. Spring 700 is positioned outside the small bushing 500. One end of spring 700 abuts against the six-end shaft on the rotating shaft 10, and the other end abuts against the second sealing ring 800. The other side of the second sealing ring 800 abuts against the wave spring washer 900. Under normal circumstances, the force of spring 700 is greater than that of wave spring washer 900, causing wave spring washer 900 to be compressed and flattened. At this time, the second sealing ring 800, under the pressure from both ends, begins to expand radially, thereby sealing the small bushing 500 and the bracket 20. The interference fit between the small bushing 500 and the rotating shaft 10 also serves as a seal, thus sealing the inner bushing 100 and the outer bushing 200 together. Figure 6 As shown, lubricating oil can be stored at point A inside. When lubricating oil needs to be added, use a tool such as tweezers or a flathead screwdriver to pull up or pry up the spring 700. The wave spring washer 900 will naturally spring open due to the lack of external pressure, thus opening the second sealing ring 800 and making it easier to inject lubricating oil into the interior.

[0027] Both the first sealing ring 400 and the second sealing ring 800 are rubber sealing rings. The first gasket 300, the second gasket 600, the third gasket 101 and the fourth gasket 102 are all metal gaskets.

[0028] In practice, third gaskets 101 are provided on both the left and right sides of the second sealing ring 800.

[0029] In specific implementation, two wave spring washers 900 are provided. The two wave spring washers 900 are stacked to increase the displacement of the spring. A fourth washer 102 is provided between the two wave spring washers 900.

[0030] In specific implementation, the first sealing ring 400 is an O-ring, the second sealing ring 800 is a rectangular sealing ring, and the outer diameter of the second sealing ring 800 is larger than the outer diameter of the first sealing ring 400.

[0031] In practice, the second gasket 600 is thinner than the first gasket 300.

[0032] In summary, this utility model discloses a spring-lubricating device for use on rotating shafts. Under normal circumstances, the spring force is greater than that of the wave spring washer, causing the wave spring washer to be compressed and flattened. At this time, the second sealing ring, under the pressure from both ends, begins to expand radially, thereby sealing the small bushing and the bracket. The interference fit between the small bushing and the rotating shaft also provides a sealing effect, thus sealing the inner and outer bushings together. Furthermore, lubricating oil can be stored inside to lubricate the sliding friction pair, thereby extending the service life of the rotating shaft. When lubricating oil needs to be added, the spring is pulled up or pried up with a tool. The wave spring washer, no longer under external pressure, naturally springs open, opening the second sealing ring and facilitating the injection of lubricating oil.

[0033] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A spring-lubricated oil injection device for use on rotating shafts, characterized in that, include: Inner bushings are fitted at both ends of a rotating shaft, with an interference fit between the inner bushings and the rotating shaft. An outer bushing is fitted onto the inner bushing, with a clearance fit between the outer bushing and the inner bushing. The outer bushing is mounted on a bracket, with an interference fit between the outer bushing and the bracket. A first gasket is provided on the outer side of the outer bushing. The first gasket is engaged in the bracket. A first sealing ring is provided between the first gasket and the inner side of the bracket. The first sealing ring is tightly fitted with the rotating shaft. A pair of small bushings are provided on the other side of the outer bushing. Several second gaskets are provided between the pair of small bushings. A spring is fitted on the small bushing. A second sealing ring and a wave spring gasket are respectively provided between the spring and the outer bushing. One end of the wave spring gasket abuts against the second sealing ring and the other end abuts against the outer bushing. The second sealing ring is tightly fitted in the bracket under the action of the spring.

2. The spring-lubricating device for rotating shafts according to claim 1, characterized in that, Third gaskets are provided on both the left and right sides of the second sealing ring.

3. The spring-lubricating device for rotating shafts according to claim 2, characterized in that, Two wave spring washers are provided, and a fourth washer is provided between the two wave spring washers.

4. The spring-lubricating device for rotating shafts according to claim 1, characterized in that, When no external force is applied, the elastic force of the spring is greater than that of the wave spring washer.

5. The spring-lubricating device for rotating shafts according to claim 1, characterized in that, The small bushing and the rotating shaft are interference fit.

6. The spring-lubricating device for rotating shafts according to claim 1, characterized in that, The inner bushing abuts against the first gasket, thereby preventing the rotating shaft from moving relative to the bracket along the axial direction.

7. The spring-lubricating device for rotating shafts according to claim 1, characterized in that, The first sealing ring is an O-ring.

8. The spring-lubricating device for rotating shafts according to claim 7, characterized in that, The second sealing ring is a rectangular sealing ring.

9. The spring-lubricating device for use on a rotating shaft according to claim 8, characterized in that, The outer diameter of the second sealing ring is larger than the outer diameter of the first sealing ring.

10. The spring-lubricating device for rotating shafts according to claim 1, characterized in that, The thickness of the second gasket is less than the thickness of the first gasket.

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