A suspension type space-adjustable oil supply roller holder for cylindrical rollers or conical rollers

Abstract

The application discloses a kind of for cylindrical roller or conical roller suspension type space adjustable oil supply roller holder, including fixed slide, and the bottom surface of fixed slide is hung with ring and roller roller holder structure, ring and roller holder structure can be placed cylindrical roller or conical roller between;And the angle adjusting device and distance adjusting device of roller holder structure are further provided between the roller holder structure of the described roller and fixed slide, the angle adjusting device is used to adjust the angle of roller holder structure, the distance adjusting device is used to adjust the distance between roller holder structure and ring, cylindrical roller or conical roller is installed below roller holder structure and is supported by ring, and the inside of the described ring is equipped with oil supply cavity and oil injection port, ring prevents cylindrical roller or conical roller from falling in non-experimental state, and external oil circuit is connected to ensure that unilateral / dual lubricating oil supplement can be carried out to friction pair according to experimental demand in test process.

Description

Technical Field

[0001] This invention belongs to the field of line contact fluid lubrication, especially the oil film experimental measurement equipment for roller bearings that need to be installed upside down and have the requirement of oil spray lubrication. Background Technology

[0002] Line contact oil film lubrication is a common lubrication method in mechanical engineering, and the thickness of the oil film between contact pairs is an important indicator of lubrication performance. Experimental studies of lubricating oil films mainly measure the oil film thickness and lubricant distribution between relatively moving surfaces. There are two common motion methods: 1) The roller is placed below the glass disk, with the roller positioned between the glass disk and the roller and in contact with the glass disk, and the interference fringes of the lubricating oil film in the contact area are photographed from above the glass disk; 2) The roller is placed above the glass disk and fixed by a specific fixture, with the photographing position below the glass disk, which prevents the roller from rolling freely during the experiment. Currently, there is a lack of mounting fixtures that ensure the free rotation of the roller for line contact lubricating oil film thickness measurement systems where the photographing position is below the glass disk and the roller is required to roll freely.

[0003] Patent CN111572277A proposes a roller support structure that can be quickly adjusted in the field of auxiliary mechanism technology. This structure facilitates the adjustment of the roller's movement, but it cannot adjust the roller's axis angle. Summary of the Invention

[0004] This invention discloses a suspended, space-adjustable oil supply roller holder for cylindrical or tapered rollers. This roller holder allows for quick inverted installation while ensuring the cylindrical or tapered roller does not fall off. During testing, it ensures that the line-contact cylindrical or tapered roller is in contact with the mating pair below the roller holder, while also allowing the cylindrical or tapered roller to roll freely. Particularly noteworthy is its ability to adjust the diameter of the cylindrical or tapered roller within limited installation space. Under high-speed operating conditions, the oil supply pump can be controlled to promptly replenish lubricating oil to the contact pair at the first sign of oil shortage.

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

[0006] An embodiment of the present invention provides a suspended, spatially adjustable oil-supplying roller support for cylindrical or tapered rollers, comprising a fixed slide plate, a hanging ring and a roller support structure suspended on the bottom surface of the fixed slide plate, and a cylindrical or tapered roller being placed between the hanging ring and the roller support structure; an angle adjustment device and a distance adjustment device are also provided between the roller support structure and the fixed slide plate, the angle adjustment device being used to adjust the angle of the roller support structure, and the distance adjustment device being used to adjust the distance between the roller support structure and the hanging ring; the cylindrical or tapered roller is installed below the roller support structure and supported by the hanging ring to prevent the cylindrical or tapered roller from falling when not in an experimental state, and the hanging ring is provided with an oil supply chamber and an oil spray port, allowing for the replenishment of lubricating oil to the friction pair according to experimental needs during the experiment.

[0007] As a further technical solution, the roller bearing structure consists of an upper bearing housing, a miniature bearing, a lower bearing housing, and a support shaft; wherein, the upper bearing housing and the lower bearing housing are installed together to form a support shaft mounting hole, and the two ends of the two support shafts are installed in four support shaft mounting holes through miniature bearings, and each support shaft is symmetrically provided with stepped protrusions at its center for supporting cylindrical rollers or tapered rollers.

[0008] As a further technical solution, the upper bearing housing is connected to the angle adjustment device and the distance adjustment device.

[0009] As a further technical solution, the lifting ring includes a main body, with a connecting rod at each end of the main body that is connected to a fixed sliding plate, and a rectangular ring structure at the center of the main body. The inner circle of the rectangular ring structure is provided with a rectangular ball hole, and an oil spray port is provided on the inner side wall of the rectangular ring structure. The oil spray port is connected to an oil supply chamber provided on the main body.

[0010] As a further technical solution, the fuel injector includes two nozzles, one on the left and one on the right, each nozzle being connected to an oil chamber, and each oil chamber being provided with a fuel supply hole.

[0011] As a further technical solution, the main body is located below the roller bearing structure, and the connecting rods are located on the left and right sides of the roller bearing structure.

[0012] As a further technical solution, the distance adjustment device includes a support flange, connecting bolts, and steel balls; the support flange is installed on the fixed slide plate, and the support flange is connected to the roller bearing structure by connecting bolts, and a steel ball for self-alignment is provided between the roller bearing structure and the support flange.

[0013] As a further technical solution, the connecting bolts are arranged in a circle around the support flange.

[0014] As a further technical solution, the angle adjustment device includes a precision threaded pair and a pressure plate. The pressure plate is fixed on the fixed slide plate, and the precision threaded pair is fixed on the fixed slide plate by the pressure plate. The lower end of the precision threaded pair is in contact with the roller bearing structure. By controlling the force between the lower end of the precision threaded pair and the roller bearing structure, the roller bearing structure can be controlled to tilt to a certain extent, thereby adjusting and locking the axis tilt angle of the roller.

[0015] As a further technical solution, the precision threaded pair is arranged in a circle along the pressure plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention allows for the selection of the diameter of cylindrical or tapered rollers and adjustment of their installation spatial position by changing the size of the self-aligning steel ball and adjusting the long bolt.

[0018] 2. The present invention is a suspended roller design, which ensures that the roller can rotate freely while providing support for the friction pair during the experiment, and ensures that the cylindrical roller will not fall off during non-experimental periods.

[0019] 3. By adjusting the angle adjustment device, the present invention can ensure that the line contact cylinder or tapered roller is in line contact with the mating sub-line below the roller support by adjusting the inclination angle of the central axis of the cylinder or tapered roller on the plane perpendicular to the contact surface while clamping the cylindrical or tapered roller.

[0020] 4. This invention features an oil replenishment port on the lifting ring that prevents the cylindrical roller from falling, which is designed to fix an external oil circuit. This allows for the replenishment of lubricating oil to the friction pair when needed. During oil replenishment, options include supplying oil to one side, supplying oil to both sides simultaneously, or supplying different types of lubricating oil to both sides simultaneously, depending on experimental requirements. Attached Figure Description

[0021] 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.

[0022] Figure 1 , Figure 2 , Figure 3 This is a perspective view of the present invention.

[0023] Figure 4 This is a perspective view of the roller support portion of the present invention.

[0024] Figure 5 This is a perspective view of the roller bearing portion of the present invention.

[0025] Figure 6 This is a perspective view of the lifting ring of the present invention.

[0026] Figure 7This is a cross-sectional view of the lifting ring of the present invention.

[0027] Figure 8 This is a simplified diagram of the experiment in which the present invention is used in conjunction with other experimental instruments.

[0028] Figure label:

[0029] 1-Support flange, 2-Precision threaded pair, 3-Pressure plate, 4-Upper bearing housing, 5-Support shaft, 6-Lower bearing housing, 7-Lifting ring, 8-Fixing slide plate, 9-Connecting bolt, 10-Steel ball, 11-Miniature bearing, 12-Cylindrical roller, 13-Left oil supply hole, 14-Right oil supply hole, 15-Injector nozzle, 16-Connecting rod, 17-Main body;

[0030] 21-Lever fulcrum, 22-Lever, 23-Suspended adjustable oil supply roller, 24-Weight, 25-External oil pipe, 26-High-speed camera, 27-Glass plate. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] As described in the background section, the present invention addresses the shortcomings of existing technologies and proposes a suspended, space-adjustable oil supply roller for cylindrical and tapered rollers to solve the aforementioned technical problems.

[0035] In a typical embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3As shown in the figure, the suspended space adjustable oil supply roller support disclosed in this embodiment, applicable to cylindrical rollers and tapered rollers, includes a fixed slide plate 8. A hanging ring 7 and a roller support structure are suspended on the bottom surface of the fixed slide plate 8. A cylindrical or tapered roller can be placed between the hanging ring 7 and the roller support structure. An angle adjustment device and a distance adjustment device for the roller support structure are also provided between the roller support structure and the fixed slide plate 8. The angle adjustment device is used to adjust the angle of the roller support structure, and the distance adjustment device is used to adjust the distance between the roller support structure and the hanging ring 7. The cylindrical roller 12 is installed below the roller support structure and supported by the hanging ring 7 to prevent the cylindrical or tapered roller from falling during non-experimental periods. In other words, the roller holder proposed in this embodiment can be quickly installed upside down while ensuring that the cylindrical or tapered roller does not fall off. During the experiment, the angle adjustment device ensures that the cylindrical or tapered roller can make line contact with the mating pair below the roller holder, while also ensuring that the cylindrical or tapered roller can roll freely. Especially in limited installation space, it can achieve adjustable diameter of the cylindrical or tapered roller. Under high-speed operation, the oil supply pump can be controlled to replenish the contact pair with lubricating oil as soon as oil shortage occurs.

[0036] Specifically, the roller bearing structure is as follows: Figure 5 As shown, it consists of an upper bearing housing 4, a miniature bearing 11, a lower bearing housing 6, and a support shaft 5. The upper bearing housing 4 and the lower bearing housing 6 are mounted together to form four support shaft mounting holes. The two ends of the two support shafts 5 are fixed in the four support shaft mounting holes by miniature bearings 11 to support the cylindrical rollers 12 in the figure. Of course, the cylindrical rollers 12 can also be replaced with tapered rollers. This embodiment is only used as an example for illustration.

[0037] During non-experimental periods, the cylindrical roller 12 is supported by the center hole of the lifting ring 7 due to gravity, preventing the roller from falling. During the experiment, due to the force between the friction pairs, the cylindrical roller 12 will be lifted up and contact the support shaft 5 in the roller holder. The two ends of the support shaft 5 are fixed by miniature bearings 11. At this time, the cylindrical roller 12 is separated from the lifting ring 7, and the lifting ring 7 will not interfere with the rotation of the cylindrical roller 12.

[0038] The structure of the lifting ring 7 is as follows Figure 6 As shown, it includes a main body 17, with a connecting rod 16 at each end of the main body 17. At the center of the main body 17 is a rectangular ring structure, with a rectangular ball hole formed within the inner ring. A flat fuel injector 15 is provided on the inner sidewall of the rectangular ring structure. The main body 17 also has two oil chambers, left and right, which are connected to the fuel injector 15. The fuel supply part of the lifting ring is as follows... Figure 6As shown, there is an oil supply hole on each side of the rectangular ball hole of the lifting eye, namely the left oil supply hole 13 and the right oil supply hole 14. When it is necessary to add lubricating oil, the external oil pipe can be inserted into the left oil supply hole 13 and the right oil supply hole 14 to supply oil to the contact pair.

[0039] Sectional view of the lifting ring 7 as shown Figure 7 As shown, the lifting ring has two oil chambers inside. The outer sides of the oil chambers are connected to the left oil supply hole 13 and the right oil supply hole 14 on both sides of the lifting ring, respectively. The inner side of the oil chamber is a flat oil spray nozzle 15. During the experiment, lubricating oil can be sprayed onto the moving cylindrical roller 12. The oil supply chambers are located on both sides of the central hole of the lifting ring. Therefore, one side oil supply, both sides oil supply at the same time, or different lubricating oils are supplied to both sides at the same time, depending on the experimental requirements.

[0040] Furthermore, such as Figure 4 As shown, the distance adjustment device in this embodiment includes a support flange 1, a connecting bolt 9, and a steel ball 10. The roller support is connected to the support flange 1 by the connecting bolt 9, and the connecting bolt 9 and the support flange 1 are in clearance fit. The roller support structure is supported by the steel ball 10 between it and the support flange 1. The main function of the steel ball 10 in this device is for self-alignment. During the test, the cylindrical roller and tapered roller are in line contact with the drive, and line contact often results in eccentricity. Therefore, this application adds a steel ball between the support flange 1 and the roller support structure for self-alignment. In addition, the distance between the support flange and the roller support structure can be adjusted by the connecting bolt 9 to accommodate cylindrical rollers 12 of different diameters. Of course, the size of the steel ball 10 must also change accordingly to ensure that the steel ball 10 is always just positioned between the support flange 1 and the upper bearing seat 4. Specifically, when testing on cylindrical rollers with large diameters, the roller support structure can be moved upward by adjusting the connecting bolt 9, thereby increasing the distance between the roller support structure and the lifting ring 7, which can accommodate large-sized cylindrical rollers 12; when testing on cylindrical rollers with small diameters, the roller support structure can be moved downward by adjusting the connecting bolt 9, thereby decreasing the distance between the roller support structure and the lifting ring 7, which can accommodate small-sized cylindrical rollers 12.

[0041] Furthermore, such as Figure 1 As shown, the angle adjustment device in this embodiment includes a precision threaded pair 2 and a pressure plate 3. Eight precision threaded pairs 2 are evenly distributed on the fixed slide plate 8. The precision threaded pairs 2 are fixed on the fixed slide plate by the pressure plate 3. By controlling the force between the lower end of the precision threaded pair 2 and the upper bearing seat 4, the roller bearing structure can be controlled to tilt to a certain extent, and the axial tilt angle of the cylindrical roller 12 can be adjusted and locked so that the cylindrical roller 12 can make full line contact with the glass disk 26.

[0042] The method for conducting experiments using the above-mentioned device is as follows:

[0043] The simplified installation diagram of this invention and other experimental instruments is shown below. Figure 8 After assembly, the fixed slide plate 1 is fixed to the lever 22 of the experimental instrument with bolts. The lever 22 can rotate around the fulcrum, but the rotation angle is very small. The roller 12 below the invention contacts the glass disk 26 of the experimental machine. At this time, due to the force between the contact pairs, the roller 12 separates from the lifting ring 7 and is then supported by the roller support. The roller maintains line contact with the glass disk due to its own weight. At this time, the connecting bolt 9 and the tight threaded pair 2 are in a relaxed state. By coarsely adjusting the connecting bolt 9, the roller support structure supports the roller. Further adjustment of the precision threaded pair 2 controls and locks the observed image. During the experiment, a load is applied to the contact pair by weights. During the experiment, the glass disk 26 drives the cylindrical roller 12 to rotate. If lubricant needs to be added, the oil supply port is connected to the lubricant to be added through a pipeline before the experiment.

[0044] Finally, it should be noted that relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0045] 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, space-adjustable oil supply roller bearing for cylindrical or tapered rollers, characterized in that, The device includes a fixed slide plate for supporting and fixing the roller support and the lifting ring; a lifting ring and a roller support structure are suspended on the bottom surface of the fixed slide plate, and cylindrical rollers or tapered rollers can be placed between the lifting ring and the roller support structure; an angle adjustment device and a distance adjustment device are also provided between the roller support structure and the fixed slide plate. The angle adjustment device is used to adjust the angle of the roller support structure, and the distance adjustment device is used to adjust the distance between the roller support structure and the lifting ring. The cylindrical rollers or tapered rollers are installed below the roller support structure and supported by the lifting ring to prevent the cylindrical rollers or tapered rollers from falling off when not in the experimental state. The lifting ring is also provided with an oil cavity and an oil spray nozzle, so that lubricating oil can be replenished to the friction pair on one or both sides as needed during the experiment. The lifting ring includes a main body, with a connecting rod at each end of the main body that is connected to a fixed sliding plate. The center of the main body is a rectangular ring structure, and a rectangular ball hole is formed in the inner circle of the rectangular ring structure. An oil spray port is provided on the inner side wall of the rectangular ring structure, and the oil spray port is connected to the oil cavity inside the main body. The fuel injector includes two nozzles, one on the left and one on the right. Each nozzle is connected to a fuel chamber, and each fuel chamber is provided with a fuel supply hole. The distance adjustment device includes a support flange, connecting bolts, and steel balls; the support flange is installed on a fixed sliding plate and connected to a roller bearing structure by connecting bolts, and a steel ball for self-alignment is provided between the roller bearing structure and the support flange; The roller bearing structure consists of an upper bearing housing, a miniature bearing, a lower bearing housing, and a support shaft. The upper and lower bearing housings are mounted together to form support shaft mounting holes. The two ends of the two support shafts are mounted in four support shaft mounting holes through miniature bearings. Each support shaft has stepped protrusions symmetrically arranged at its center to support cylindrical rollers or tapered rollers. During the experiment, due to the force between the friction pairs, the cylindrical roller or tapered roller will be lifted up and contact the support shaft in the roller bearing structure. The cylindrical roller or tapered roller will separate from the lifting ring, and the lifting ring will not interfere with the rotation of the cylindrical roller or tapered roller.

2. The suspended, space-adjustable oil supply roller holder for cylindrical or tapered rollers as described in claim 1, characterized in that, The upper bearing housing is connected to the angle adjustment device and the distance adjustment device.

3. The suspended, space-adjustable oil supply roller holder for cylindrical or tapered rollers as described in claim 1, characterized in that, The lifting ring body is located below the roller support structure, and the connecting rods are located on the left and right sides of the roller support structure.

4. The suspended, space-adjustable oil supply roller holder for cylindrical or tapered rollers as described in claim 1, characterized in that, The connecting bolts are arranged in a circle around the circumference of the supporting flange.

5. The suspended, space-adjustable oil supply roller holder for cylindrical or tapered rollers as described in claim 1, characterized in that, The angle adjustment device includes a precision threaded pair and a pressure plate. The pressure plate is fixed on a fixed slide plate, and the precision threaded pair is fixed on the fixed slide plate by the pressure plate. The lower end of the precision threaded pair is in contact with the roller bearing structure. By controlling the force between the lower end of the precision threaded pair and the roller bearing structure, the roller bearing structure is controlled to tilt to a certain extent, thereby adjusting and locking the axial tilt angle of the cylindrical roller or tapered roller.

6. The suspended, space-adjustable oil supply roller holder for cylindrical or tapered rollers as described in claim 5, characterized in that... The precision threaded pair is arranged in a circle along the circumference of the pressure plate.

Images