A suspension type ball holder with double oil supply channels

Abstract

The application discloses a suspension type ball holder with double oil supply channels, which comprises a fixed slide plate used for supporting and fixing the ball holder and a lifting ring; the ball holder is hung at the bottom of the fixed slide plate and connected with the fixed slide plate, and the ball holder comprises four conical rollers used for supporting a steel ball; the lifting ring is hung at the bottom of the fixed slide plate, and a setting space of the steel ball is formed between the lifting ring and the ball holder; and an oil supply cavity is arranged in the lifting ring, and an oil injection port is arranged on the oil supply cavity; the lifting ring is used for supporting the steel ball in a non-experimental state, and is used for connecting an oil circuit in an experimental process to ensure that the friction pair is supplemented with lubricating oil on one side or on both sides.

Description

Technical Field

[0001] This invention belongs to the field of point contact lubrication, and specifically relates to a suspended ball support with dual oil supply channels. Background Technology

[0002] Point-contact oil film lubrication is a common lubrication method in mechanical engineering, such as in ball bearings. The thickness of the oil film between point-contact pairs is an important indicator of lubrication performance. Compared with oil immersion lubrication, oil spraying lubrication is an economical and feasible method for friction pairs, such as in oil-sprayed ball bearings. However, there is currently a lack of ball holder fixtures that allow for flexible setting of oil spraying lubrication conditions. Current experimental research on point-contact lubrication films mainly focuses on measuring the oil film thickness and lubricant distribution between the ball and the relatively moving surfaces of the disc. There are two common motion methods: 1) A steel ball is drilled and mounted on a motor shaft, driven by a motor, while a high-speed camera captures interference images from above or below; 2) A ball holder is located below a glass disc, with the steel ball placed between the disc and the holder and in contact with the disc. When the disc rotates, the steel ball rotates freely, while a high-speed camera captures interference fringe images of the lubrication area between the steel ball and the disc from above. For point-contact lubrication film thickness measurement systems where the shooting position is below the disc and space is limited, making it impossible to install a motor-driven steel ball independently, there are currently no reports on mounting fixtures that guarantee the free rotation of the steel ball.

[0003] Patent CN208665945U proposes a ball bearing support structure similar to a ballpoint pen tip. This structure is heavily dependent on machining precision, resulting in high maintenance costs in experiments requiring frequent replacement of steel balls. Patent CN214667650U proposes an arc-shaped roller ball bearing support structure based on the raceway of a rolling bearing. This structure can simulate the lubrication state between the rolling elements and the radius of the rolling track in a rolling bearing. However, this structure cannot be suspended and cannot produce a lubrication effect during experiments. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a suspended ball support with dual oil supply channels and its usage method.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] Embodiments of the present invention provide a suspended ball support with dual oil supply channels, including

[0007] Fixed slide, which is used to support and secure the ball support and the ring;

[0008] The ball support is suspended from the bottom of the fixed slide plate and connected to the fixed slide plate. The ball support includes four conical rollers for supporting the steel ball.

[0009] The lifting ring is suspended at the bottom of the fixed slide plate, and a space for the steel ball is formed between the lifting ring and the ball support. The lifting ring has an oil supply chamber inside and an oil spray port on it. In non-experimental state, the lifting ring is used to support the steel ball. During the experiment, it is used to connect an external oil circuit to ensure that the friction pair is lubricated on one or both sides.

[0010] As a further technical solution, the ball support is composed of a miniature bearing, an upper bearing base, a lower bearing base, a support shaft, and tapered rollers. The support shaft includes two shafts, and the two ends of the two support shafts are respectively installed in the support shaft mounting holes formed by the upper bearing base and the lower bearing base through miniature bearings. Each support shaft is provided with a pair of tapered rollers placed in opposite positions; the four tapered rollers support the steel ball.

[0011] As a further technical solution, bolt holes are provided on both sides of the bearing upper base, and the bearing upper base is fixed to the fixed slide plate through the bolt holes.

[0012] As a further technical solution, the lifting ring consists of a lower lifting ring plate, a sealing ring and a sealing pressure plate, a first oil supply connector, a second oil supply connector, and an oil spray nozzle. The lower lifting ring plate is connected to the fixed sliding plate. The sealing pressure plate and the lower lifting ring plate form two oil supply chambers. The outer side is sealed with a sealing ring to prevent lubricating oil leakage, and the inner side forms a flat oil spray nozzle to spray the lubricating oil in the oil chamber onto the steel ball. The two oil supply chambers are separated by the sealing ring, so that oil can be supplied from one side, from both sides simultaneously, or from different lubricating fluids according to experimental requirements. The sealing pressure plate is provided with a first oil supply connector and a second oil supply connector, which can deliver lubricating oil to the two oil supply chambers formed by the pressure plate and the lower lifting ring plate.

[0013] As a further technical solution, the lower plate of the lifting ring includes a base plate and two connecting columns connected to the base plate; the base plate is a circular ring plate, and a groove is formed downward at the top of the inner ring of the circular ring plate. The groove serves as part of the oil supply chamber, and together with the sealing ring and the sealing pressure plate, it forms two oil supply chambers.

[0014] As a further technical solution, two notches that mate with the sealing ring are provided on the groove.

[0015] As a further technical solution, the sealing plate is a ring-shaped structure with two arc-shaped protrusions at the bottom. The arc-shaped protrusions can be installed in the groove of the lower plate of the lifting ring, and the gap formed between the two arc-shaped protrusions is exactly opposite to the notch mentioned above.

[0016] As a further technical solution, two oil supply holes are provided on the top of the sealing plate, one of which is connected to the first oil supply connector and the other is connected to the second oil supply connector.

[0017] Furthermore, there are two protrusions on the inner ring of the sealing ring. The sealing ring is installed between the lower plate of the lifting ring and the sealing pressure plate. The two protrusions fit precisely into the notch between the lower plate of the lifting ring and the sealing pressure plate, separating the left oil supply chamber and the right oil supply chamber.

[0018] The beneficial effects of the above embodiments of the present invention are as follows:

[0019] 1. The present invention is a suspended ball support design, which ensures that the steel ball can rotate freely while providing load for the contact pair, and the steel ball will not fall off during non-experimental periods.

[0020] 2. The present invention has a simple structure. The lifting ring that prevents the steel ball from falling is designed with an oil replenishment port with a fixed external oil circuit. The lubricating oil can be replenished to the friction pair according to the experimental requirements, such as supplying oil to one side, supplying oil to both sides at the same time, or supplying different lubricating fluids to both sides.

[0021] 3. Under space-constrained conditions, the present invention can achieve convenient inverted installation of steel ball and ball holder without adding a ball drive system, ensuring that the steel ball is completely driven by the glass disk. Attached Figure Description

[0022] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0023] Figure 1 , Figure 2 , Figure 3 This is a three-dimensional perspective view of the present invention.

[0024] Figure 4 This is a perspective view of the ball support portion of the present invention.

[0025] Figure 5 This is a perspective view of the lifting ring portion of the present invention.

[0026] Figure 6 This is a cross-sectional view of the lifting ring portion of the present invention.

[0027] Figure 7 This is a perspective view of the lower plate of the lifting ring component of the present invention.

[0028] Figure 8 This is a perspective view of the sealing ring component of the lifting ring of the present invention.

[0029] Figure 9 This is a perspective view of the sealing pressure plate of the lifting ring component of the present invention.

[0030] Figure 10 This is a simplified diagram of the experiment in which the present invention is used in conjunction with other experimental instruments.

[0031] Figure label:

[0032] 1-Fixed skateboard;

[0033] 2-Ball support, 21-Miniature bearing, 22-Upper bearing base, 23-Lower bearing base, 24-Support shaft, 25-Conical roller;

[0034] 3-Hanging rings;

[0035] 31-Lower plate of lifting eyelet, 311-Left connecting column, 312-Right connecting column, 313-Base plate, 314-Groove, 315-Notch;

[0036] 32-Sealing pressure plate, 321Left protrusion section, 322Right protrusion section, 323Left oil supply hole, 324Right oil supply hole, 325Gap;

[0037] 33 sealing ring, 331 protrusion;

[0038] 34 Left fuel supply connector,

[0039] 35-Right fuel supply connector,

[0040] 36 - Fuel injector;

[0041] 4-Steel ball;

[0042] 51-Lever, 52-Suspended ball support, 53-Weight, 54-External oil pipe, 55-High-speed camera, 56-Glass plate. Detailed Implementation

[0043] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0044] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] For ease of description, the words "up," "down," "left," and "right" appearing in this invention only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves, and do not limit the structure. They are merely for the purpose of facilitating the description of this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, the present invention proposes a suspended ball support with dual oil supply channels.

[0047] In a typical embodiment of the present invention, such as Figure 1 As shown, this embodiment discloses a suspended oil ball holder, mainly including a fixed sliding plate 1 for supporting and fixing various components; a ball holder 2 for supporting a steel ball during the experiment; and a hanging ring 3 for supporting the steel ball when not in the experiment, and for connecting an external oil circuit during the experiment to ensure single / double-sided lubrication of the friction pair. Specifically, the ball holder 2 is suspended from the bottom of the fixed sliding plate 1 and connected to the fixed sliding plate 1; the hanging ring 3 is also suspended from the bottom of the fixed sliding plate 1, and a space for the steel ball is formed between the hanging ring 3 and the ball holder 1. The steel ball 4 is installed between the hanging ring 3 and the ball holder 1, and part of the outer ring of the steel ball 4 is exposed outside the hanging ring 3; and the hanging ring 3 has an oil supply chamber inside, with an oil spray nozzle on it. In the non-experimental state, the hanging ring is used to support the steel ball, and during the experiment, it is used to connect an external oil circuit to ensure single or double-sided lubrication of the friction pair.

[0048] The ball holder 2 consists of a miniature bearing 21, an upper bearing base 22, a lower bearing base 23, a support shaft 24, and tapered rollers 25. The upper bearing base 22 is mounted on the lower bearing base 23 by multiple screws, forming four support shaft mounting holes. Two support shafts 24 are included, with their ends mounted in the support shaft mounting holes via miniature bearings 21. Each support shaft 24 has a pair of tapered rollers 25 positioned opposite each other. The four tapered rollers 25 support the steel ball. Bolt holes are also provided on both sides of the upper bearing base 22, which is fixed to the fixed sliding plate 1 via these bolt holes. During non-experimental periods, the steel ball 4 is supported by the central ball hole of the lifting ring 3 due to gravity, preventing it from falling. During the experiment, due to the force between the friction pairs, the steel ball 4 is lifted and contacts the tapered rollers 25 in the ball holder 2. The two ends of the support shaft 24 are fixed by miniature high-speed bearings 21. At this time, the steel ball 4 is separated from the lifting ring 3, and the lifting ring does not interfere with the rotation of the steel ball.

[0049] During the ball support 2 experiment, the steel ball 4 separates from the lifting ring 3 due to the upward force generated by the contact pair below it, and then contacts the ball support 2, providing load for the friction pair during the experiment.

[0050] Furthermore, the lifting ring 3 consists of a lower lifting ring plate 31, a sealing ring 33, a sealing pressure plate 32, a left oil supply connector 34, a right oil supply connector 35, and an oil spray nozzle 36. The lower lifting ring plate 31 supports the entire lifting ring structure and is connected to the fixed sliding plate 1. The sealing pressure plate 32 and the lower lifting ring plate 31 form two oil supply chambers. The outer side is sealed with a sealing ring 33 to prevent lubricating oil leakage, and the inner side forms a flat oil spray nozzle 36 to spray the lubricating oil in the oil chamber onto the steel ball 4. The two oil supply chambers are separated by the sealing ring 33, so that oil can be supplied from one side, from both sides simultaneously, or from different lubricating fluids on both sides according to experimental requirements. The sealing pressure plate 32 is provided with a left oil supply connector 34 and a right oil supply connector 35, which can deliver lubricating oil to the two oil supply chambers formed by the sealing pressure plate 32 and the lower lifting ring plate 31.

[0051] Furthermore, the structure of the lower plate 31 of the aforementioned lifting ring is as follows: Figure 7 As shown, it includes a left connecting post 311, a right connecting post 312, and a base plate 313. The base plate 313 is an annular plate with a groove 314 formed downwards at the top of the inner ring. Two notches 315 are provided on the groove 314. The groove 314 serves as part of the oil supply chamber, and together with the sealing ring 33 and the sealing pressure plate 32, it forms two oil supply chambers: the left oil supply chamber formed by the groove to the left of the two notches 315, and the right oil supply chamber formed by the groove to the right of the two notches 315.

[0052] Furthermore, the structure of the sealing pressure plate 32 is as follows: Figure 9 As shown, the sealing plate 32 is an annular structure. Two arc-shaped protrusions are provided at the bottom of the sealing plate 32: a left protrusion 321 and a right protrusion 322. These two protrusions can be installed within the groove 314 of the lower plate 31 of the lifting ring. The gap between the two arc-shaped protrusions corresponds precisely to the notch 315 mentioned above. The left protrusion 321 and the bottom groove 314 form a left oil supply chamber, and the right... The right protruding section 322 on the side and the groove 314 at the bottom form a right oil supply chamber. A left oil supply hole 323 and a right oil supply hole 324 are provided on the top of the sealing pressure plate 32. The left oil supply hole 323 is connected to the left protruding section 321 on the left side, that is, connected to the left oil supply chamber. The right oil supply hole 324 is connected to the right protruding section 322 on the right side, that is, connected to the right oil supply chamber. The left oil supply hole 323 is connected to the left oil supply connector 34, and the right oil supply hole 324 is connected to the right oil supply connector 35.

[0053] Furthermore, the structure of the sealing ring 33 is as follows: Figure 8 As shown, there are two protrusions 331 on the inner ring of the sealing ring 33. The sealing ring 33 is installed between the lower plate 31 of the lifting ring and the sealing pressure plate 32. The two protrusions are just stuck in the notch between the lower plate 31 of the lifting ring and the sealing pressure plate 32, separating the left oil supply chamber and the right oil supply chamber.

[0054] The specific installation process is as follows:

[0055] First press Figure 4 After the ball support part is installed as shown, the bearing base 22 is then fixed to the fixed slide plate 1 with bolts. Next, the ball support 3 is connected to the fixed slide plate 1. The entire installation is now complete. Figure 1 , Figure 2 , Figure 3 As shown in the 3D diagram, the following experiment was then conducted:

[0056] A simplified diagram of the experimental setup for this invention in conjunction with other experimental instruments is shown below. Figure 10 After assembly, the fixed sliding plate 1 is bolted to the lever 51 of the experimental instrument. The lever can rotate around the fulcrum, but the rotation angle is very small. The steel ball 4 below the invention contacts the glass disk 56 of the experimental machine. At this time, due to the force between the contact pairs, the steel ball 4 separates from the hanging ring 3 and is then supported by the ball support 2. During the experiment, a load is applied to the contact pairs by weights. During the experiment, the glass disk drives the steel ball to rotate. If lubricant needs to be added during the experiment, the oil supply port is connected to the lubricant to be added through the external pipeline 54 before the experiment.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A suspended ball support with dual oil supply channels, characterized in that, include Fixed slide, which is used to support and secure the ball support and the ring; The ball holder is suspended from the bottom of the fixed slide plate and connected to the fixed slide plate. The ball holder includes four conical rollers for supporting the steel ball during the experiment. The lifting ring is suspended at the bottom of the fixed slide plate, and a space for the steel ball is formed between the lifting ring and the ball support. The lifting ring has an oil supply chamber inside and an oil spray port on it. In non-experimental state, the lifting ring is used to support the steel ball. During the experiment, it is used to connect an external oil circuit to ensure that the friction pair is lubricated on one or both sides. The ball support consists of a miniature bearing, an upper bearing base, a lower bearing base, a support shaft, and tapered rollers. The support shaft includes two shafts, and the two ends of the two support shafts are respectively installed in the support shaft mounting holes formed by the upper bearing base and the lower bearing base through miniature bearings. Each support shaft is provided with a pair of tapered rollers placed in opposite positions. The lifting ring consists of a lower lifting ring plate, a sealing ring, a sealing pressure plate, an oil supply connector, and an oil spray nozzle. The lower lifting ring plate is connected to the fixed sliding plate. The sealing pressure plate and the lower lifting ring plate form an oil supply chamber, which is sealed on the outside with a sealing ring and forms a flat oil spray nozzle on the inside to spray the lubricating oil in the oil chamber onto the steel ball. An oil supply connector is provided on the sealing pressure plate. The oil supply chamber is divided into two independent oil supply chambers by a sealing ring, and each oil supply chamber is independently equipped with an oil supply connector and an oil injection port; The lower plate of the lifting ring includes a base plate and two connecting columns connected to the base plate; the base plate is a circular ring plate, and a groove is formed downward at the top of the circular ring plate near the inner ring. The groove serves as part of the oil supply chamber, which together with the sealing ring and the sealing pressure plate forms the oil supply chamber. During the experiment, due to the force between the friction pairs, the steel ball will be lifted up and come into contact with the conical roller in the ball holder. The steel ball will then separate from the hanging ring, and the hanging ring will not interfere with the rotation of the steel ball.

2. The suspended ball support with dual oil supply channels as described in claim 1, characterized in that, Two notches are provided in the groove to mate with the sealing ring.

3. The suspended ball support with dual oil supply channels as described in claim 2, characterized in that, The sealing plate is a ring-shaped structure with two arc-shaped protrusions at the bottom. These arc-shaped protrusions can be installed in the groove of the lower plate of the lifting ring, and the gap between the two arc-shaped protrusions is exactly opposite to the notch mentioned above. Two oil supply holes are provided at the top of the sealing plate, and each of the two oil supply holes is connected to one of the arc-shaped protrusions.

4. The suspended ball support with dual oil supply channels as described in claim 2, characterized in that, There are two protrusions on the inner ring of the sealing ring. The two protrusions fit precisely into the notch, dividing the oil supply chamber into two independent cavities.

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