A dual-effect combined sliding bearing structure

Abstract

The utility model relates to a double -effect combined sliding bearing structure, and the mutual splicing and fixed connection of composite bearing left and right petals form sliding bearing, radial support bearing assembly includes at least three circumferential distribution oil wedge on the inner diameter bearing bush of sliding bearing, and the oil wedge all includes the radial outer concave groove, all is provided with V -shaped groove on the arc edge of the both ends groove wall of groove, still all is connected with the radial outer extension through -hole on the groove, and the outer end of through -hole all is linked with the annular concave oil groove on the outer circumferential side of sliding bearing and communicates, and the thrust axial support bearing assembly includes the thrust surface on the both end side surfaces of sliding bearing, and the thrust surface all is formed by several circumferential distribution thrust pads, adopt radial support and axial support to combine two as one, double -effect combines, saves installation space, and the whole completes sliding bearing processing and divides into two to form composite bearing left and right petals, and then the mutual splicing and fixed connection of composite bearing left and right petals form sliding bearing, can realize convenient installation, and the maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to a dual-effect combined sliding bearing structure, and relates to the field of sliding bearings. Background Technology

[0002] The core function of bearings is to support rotating mechanical components, reduce frictional losses during operation, and provide stable support to ensure stable and reliable rotation. With the rapid development of the industry, the requirements for bearing performance in all aspects are becoming increasingly stringent.

[0003] In the field of sliding bearings, bearings must operate safely and reliably with low noise, while also being easy to install and having low maintenance costs. From a manufacturing perspective, sliding bearings are simpler to manufacture than roller bearings, with fewer parts and a simpler processing flow. Sliding bearings are a combination structure of the bearing bush and bearing housing, molded as a single piece, eliminating the need for precision machining or grinding of the rolling elements. From an economic perspective, their initial manufacturing cost is lower, and although their total lifespan is slightly shorter than that of roller bearings, their maintenance and replacement costs are also lower. From an assembly perspective, sliding bearings have lower requirements for overall precision and a higher tolerance for error compared to roller bearings.

[0004] However, existing sliding bearings are generally single axial thrust bearings or radial bearings, which have a single effect. In order to ensure the effect, a large number of them are usually required, which leads to a large space occupation and a large overall size. Existing sliding bearings are mostly one-piece structures, which makes installation inconvenient and maintenance difficult.

[0005] To address the aforementioned problems in the prior art, this utility model provides a dual-effect combined sliding bearing structure. Utility Model Content

[0006] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a dual-effect combined sliding bearing structure. The whole bearing is divided into two parts along the radial direction. The left and right halves of the composite bearing are spliced ​​and fixed together to form a sliding bearing. It is simple to install and convenient to maintain. It has the effect of both axial and radial bearings, saves installation space and reduces the cost of use.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a double-effect combined sliding bearing structure, including a left lobe of a composite bearing and a right lobe of a composite bearing, wherein the left and right lobes of the composite bearing are spliced ​​together and fixedly connected to form a sliding bearing. The sliding bearing is provided with a radial support bearing assembly, which includes at least three oil wedges evenly distributed on the inner diameter bearing shell of the sliding bearing. Each oil wedge includes a radially concave groove. V-shaped grooves are provided on the arc edges of the groove walls at both ends of the groove. Each groove is also connected to a radially extending through hole. The outer end of each through hole is connected to an annular concave oil groove provided on the outer peripheral side of the sliding bearing. The sliding bearing is provided with a thrust axial support bearing assembly, which includes thrust surfaces located on both ends of the sliding bearing. Each thrust surface is composed of several circumferentially distributed thrust pads, and the interval between two adjacent thrust pads is a pad groove.

[0008] Preferably, the splicing surface between the left and right halves of the composite bearing is provided with positioning pin holes parallel to the axial direction, and each of the left and right halves of the composite bearing has half of the positioning pin holes, with positioning pins provided in the positioning pin holes.

[0009] Preferably, the left and right halves of the composite bearing are fastened together by fastening screws, and there are at least two fastening screws. The splicing surface of the right halves of the composite bearing is provided with an internal threaded hole, the axis of which is perpendicular to the splicing surface. The splicing surface of the left halves of the composite bearing is provided with a mounting through hole, the axis of which is also perpendicular to the splicing surface. The fastening screw passes through the mounting through hole and is screwed into the internal threaded hole. Furthermore, the outer peripheral side of the left halves of the composite bearing is provided with a countersunk groove corresponding to the mounting through hole to facilitate the installation of the fastening screw.

[0010] Preferably, there are three oil wedges, namely oil wedge one, oil wedge two, and oil wedge three. The groove of oil wedge one is groove one, the groove of oil wedge two is groove two, and the groove of oil wedge three is groove three. The inner end of the through hole is connected to the arc-shaped groove circumference of the groove.

[0011] Preferably, the thrust surface is composed of a thrust surface one located at one end of the sliding bearing and a thrust surface two located at the other end of the sliding bearing. The thrust surface one is equally divided by one end of the left and right halves of the composite bearing, and the thrust surface two is equally divided by the other end of the left and right halves of the composite bearing.

[0012] Preferably, a plurality of thrust pads form an annular thrust surface, and the thrust pads are fixedly connected to a sliding bearing.

[0013] Preferably, the sliding bearing is also provided with oblique holes on the outer side of each V-groove.

[0014] Preferably, the inner ends of the inclined holes are all connected to the corresponding V-shaped grooves, and the outer ends of the inclined holes are all connected to the corresponding through holes.

[0015] Preferably, the right lobe of the composite bearing is provided with a temperature measuring hole for placing a temperature sensor to monitor the bearing temperature status during shaft operation.

[0016] Preferably, a disc flange panel is fixed on the left lobe of the composite bearing, and the disc flange panel has a circular through hole for fixing the entire bearing.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The radial support bearing assembly and the thrust axial support bearing assembly are combined into one, achieving dual benefits and saving installation space.

[0018] 2. After the sliding bearing is fully processed, it is divided into two parts: the left and right halves of the composite bearing. The left and right halves of the composite bearing are then spliced ​​together and fixed to form a sliding bearing, which can achieve convenient installation and low maintenance cost.

[0019] 3. Each oil wedge is provided with a groove, and each groove is provided with a through hole. Both ends of the groove are provided with V-shaped grooves, and both ends of the V-shaped grooves are provided with oblique holes that connect to the through holes. This can achieve simultaneous and synchronous lubrication, ensure uniform and timely lubrication under the same conditions, ensure that the shaft is fully protected during operation, and avoid frictional wear.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 .

[0023] Figure 3 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 3 .

[0024] Figure 4 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 4 .

[0025] Figure 5 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 5 .

[0026] Figure 6 This is a simplified schematic diagram illustrating the working state of an embodiment of the present utility model.

[0027] In the diagram: 1. Composite bearing left lobe; 2. Composite bearing right lobe; 3. Fastening screw; 4. Locating pin; 5. Oil wedge one; 6. Oil wedge two; 7. Oil wedge three; 8. Groove one; 9. Groove two; 10. Groove three; 11. V-groove; 12. Through hole; 13. Thrust surface one; 14. Thrust surface two; 15. Annular concave oil groove; 16. Inclined hole; 17. Disc flange panel; 18. Circular through hole; 19. Temperature measuring hole; 20. Thrust pad; 21. Pad groove; 22. Bearing seat; 23. Sliding bearing; 24. Shaft. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, 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 pertains.

[0030] 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 exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. 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.

[0031] like Figures 1-6 As shown, this embodiment provides a dual-effect combined sliding bearing structure, including a composite bearing left lobe 1 and a composite bearing right lobe 2, wherein the left and right lobes of the composite bearing are spliced ​​together and fixedly connected to form a sliding bearing. The sliding bearing is provided with a radial support bearing assembly, which includes at least three oil wedges evenly distributed on the inner diameter bearing shell of the sliding bearing. Each oil wedge includes a radially concave groove. V-shaped grooves 11 are provided on the arc edges of the groove walls at both ends. Each groove is also connected to a radially extending through hole 12. The outer ends of the through holes are connected to an annular concave oil groove 15 provided on the outer peripheral side of the sliding bearing. The sliding bearing is provided with a thrust axial support bearing assembly, which includes thrust surfaces located on both ends of the sliding bearing. Each thrust surface is composed of several circumferentially distributed thrust pads 20, and the interval between two adjacent thrust pads is a pad groove 21.

[0032] The sliding bearing has thrust surfaces on both sides, which are composed of square thrust pads evenly distributed around the circumference to form a ring-shaped thrust surface. The rings are symmetrically distributed on both sides of the bearing. The inner cavity of the sliding bearing has a radial structure of at least three oil wedges. Each oil wedge has a groove with a through hole for subsequent oil lubrication. V-shaped grooves are provided on both sides of the groove for subsequent oil lubrication of the thrust bearing pad. The overall bearing is radially divided into two parts and secured by locating pins and fastening screws, which has the effect of both axial and radial bearings, saving installation space and reducing operating costs. The outer side of the sliding bearing has a circular through hole for connection with the bearing seat to ensure stability during use. It can save installation space, reduce the bearing housing occupation, and free up space to reduce machine size and casting costs; compared with roller bearings, it is simple to manufacture, reducing the failures that may be caused by complex structure; it is easy to install, convenient for later maintenance, low replacement cost, and significantly reduced maintenance expenses.

[0033] The annular concave oil groove can form a sealed structure with the bearing housing during operation, which can be used to store lubricating oil, so as to delay lubrication and reduce wear when the machine is stopped.

[0034] In this embodiment of the present invention, a positioning pin hole parallel to the axial direction is provided on the splicing surface between the left and right halves of the composite bearing, and half of the positioning pin holes are distributed on the left and right halves of the composite bearing, and a positioning pin 4 is provided in the positioning pin hole.

[0035] In this embodiment of the present invention, the left and right halves of the composite bearing are fixedly connected to each other by fastening screws 3. There are at least two fastening screws. The splicing surface of the right halves of the composite bearing is provided with an internal threaded hole, the axis of which is perpendicular to the splicing surface. The splicing surface of the left halves of the composite bearing is provided with a mounting through hole, the axis of which is also perpendicular to the splicing surface. The fastening screw passes through the mounting through hole and is screwed into the internal threaded hole. Furthermore, the outer peripheral side of the left halves of the composite bearing is provided with a countersunk groove corresponding to the mounting through hole to facilitate the installation of the fastening screw.

[0036] In this embodiment of the utility model, there are three oil wedges, namely oil wedge one 5, oil wedge two 6, and oil wedge three 7. The groove of oil wedge one is groove one 8, the groove of oil wedge two is groove two 9, and the groove of oil wedge three is groove three 10. The inner end of the through hole is connected to the arc-shaped groove circumference of the groove.

[0037] In this embodiment of the present invention, the thrust surface is composed of a thrust surface 13 located at one end of the sliding bearing and a thrust surface 14 located at the other end of the sliding bearing. The thrust surface 1 is evenly divided by one end of the left and right halves of the composite bearing, and the thrust surface 2 is evenly divided by the other end of the left and right halves of the composite bearing.

[0038] In this embodiment of the invention, a plurality of thrust pads form an annular thrust surface, and the thrust pads are fixedly connected to a sliding bearing.

[0039] In this embodiment of the utility model, the sliding bearing is also provided with oblique holes 16 on the outer side of each V-groove.

[0040] In this embodiment of the invention, the inner ends of the inclined holes are all connected to the corresponding V-shaped grooves, and the outer ends of the inclined holes are all connected to the corresponding through holes.

[0041] In this embodiment of the present invention, a temperature measuring hole 19 is provided on the right lobe of the composite bearing for placing a temperature sensor to monitor the bearing temperature status during shaft operation.

[0042] In this embodiment of the present invention, the left lobe of the composite bearing is provided with a disc flange panel 17, which has a circular through hole 18 for fixing the entire bearing.

[0043] A working method for a double-effect combined sliding bearing structure is carried out according to the following steps: S1: The left and right halves of the composite bearing are respectively assembled onto the shaft 24. The two halves of the bearing are joined together to support the shaft. After being joined together, they are positioned by the locating pin. Then, the left and right halves of the composite bearing are locked with fastening screws. At this time, the shaft and the left and right halves of the composite bearing are fixed together, which plays a role in radial support for the shaft, to bear the radial load, to ensure the radial runout of the shaft during operation, and to limit its vertical displacement. S2: When hoisting the shaft, assemble the sliding bearing 23 together with the bearing housing 22 for fixation. Use screws to pass through the circular through hole on the disc flange panel of the sliding bearing and lock it in place to complete the initial assembly tooling. The installation is simple and quick and does not require special tools. S3: Before the shaft is operated, external lubrication is provided, such as... Figure 2 , Figure 3 As shown, lubricating oil enters the annular concave oil groove through the pipe. The annular concave oil groove will be filled with oil. Due to gravity, the lubricating oil enters the groove of each oil wedge along the through hole, and then overflows from the groove to fill the lower half of the shaft and bearing. At the same time, it enters the inclined hole, and at this time the hole is filled with lubricating oil. S4: The shaft enters the working state, and the lubricating oil flows faster as the shaft rotates. It will quickly wrap around the bearing support part. As the speed is established, the three oil wedges in the radial support area generate corresponding pressure zones, which play a role in bearing the radial load on the shaft, making it run stably and with good vibration resistance. S5: During the rotation of the shaft, such as Figure 2 , Figure 3 As shown, the lubricating oil splashes as it rotates, and the lubricating oil in the corresponding grooves of the three oil wedges also flows out from the V-shaped grooves on both sides due to pressure. After being pressed, it enters the clearance surface between thrust surface one and the shaft and the clearance surface between thrust surface two and the shaft respectively, forming a pressure oil film in these two gaps. The oil film has a certain thickness, so that the shaft and the thrust surface can be effectively lubricated even under high-speed rotation. Moreover, the pressure oil film can produce a buffering effect when the shaft produces axial movement, diluting the influence of axial force on the system, and helping the shaft to bear the axial load of the thrust while limiting its axial displacement. The thrust bearings are lubricated by oil stored and transferred through the grooves in the bearings, forming an oil film to reduce friction caused by axial movement of the shaft.

[0044] This dual-effect combined sliding bearing structure exhibits both radial and thrust effects simultaneously without interference. The combined effect significantly reduces the installation space required, allowing for a reduction in the overall machine size and manufacturing cost, thus improving economic efficiency.

[0045] During the rotation of the shaft, the V-groove splash lubrication can also ensure that all parts of the bearing shaft are lubricated. S6: If the external lubricating oil loses its power supply due to power failure, the shaft will still rotate due to inertia. At this time, the lubricating oil stored in the annular groove can continue to be supplied, ensuring the bearing lubrication is extended, reducing dry friction, and extending the service life of the bearing and shaft.

[0046] This dual-effect combined sliding bearing structure integrates radial and thrust support, eliminating the need for separate bearings and saving installation space. Its internal three-oil-wedge structure limits the radial runout of the shaft and bears the radial load during shaft rotation, while the thrust surfaces on both sides restrict shaft movement and bear the axial load. Simultaneously, it features an annular oil groove to effectively store lubricating oil, preventing dry friction and extending lubrication time. The overall structure is simple, easy to install, has low maintenance costs, is energy-efficient, has a higher load-bearing capacity than single-effect bearings, a wider range of applications, and offers excellent cost-effectiveness.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A double-effect combined sliding bearing structure, characterized in that: It includes a left lobe and a right lobe of a composite bearing, wherein the left and right lobes of the composite bearing are spliced ​​together and fixedly connected to form a sliding bearing; The sliding bearing is provided with a radial support bearing assembly, which includes at least three oil wedges evenly distributed on the inner diameter bearing shell of the sliding bearing. Each oil wedge includes a radially concave groove, and V-shaped grooves are provided on the arc edges of the groove walls at both ends. Each groove is also connected to a radially extending through hole, and the outer end of each through hole is connected to an annular concave oil groove provided on the outer peripheral side of the sliding bearing. The sliding bearing is provided with a thrust axial support bearing assembly, which includes thrust surfaces located on both ends of the sliding bearing. Each thrust surface is composed of several circumferentially distributed thrust pads, and the interval between two adjacent thrust pads is a pad groove.

2. The double-effect combined sliding bearing structure according to claim 1, characterized in that: The splicing surface between the left and right halves of the composite bearing is provided with positioning pin holes parallel to the axial direction. Half of the positioning pin holes are distributed on the left and right halves of the composite bearing, and positioning pins are provided in the positioning pin holes.

3. The double-effect combined sliding bearing structure according to claim 1, characterized in that: The left and right halves of the composite bearing are fastened together by fastening screws, and there are at least two fastening screws. The splicing surface of the right halves of the composite bearing is provided with an internal threaded hole, the axis of which is perpendicular to the splicing surface. The splicing surface of the left halves of the composite bearing is provided with a mounting through hole, the axis of which is also perpendicular to the splicing surface. The fastening screw passes through the mounting through hole and is screwed into the internal threaded hole. Furthermore, the outer circumference of the left halves of the composite bearing is provided with a countersunk groove corresponding to the mounting through hole to facilitate the installation of the fastening screw.

4. The double-effect combined sliding bearing structure according to claim 1, characterized in that: The oil wedge has three parts, namely oil wedge one, oil wedge two, and oil wedge three. The groove of oil wedge one is groove one, the groove of oil wedge two is groove two, and the groove of oil wedge three is groove three. The inner end of the through hole is connected to the arc-shaped groove circumference of the groove.

5. The double-effect combined sliding bearing structure according to claim 1, characterized in that: The thrust surface consists of a thrust surface one located on one end of the sliding bearing and a thrust surface two located on the other end of the sliding bearing. The thrust surface one is equally divided by one end of the left and right halves of the composite bearing, and the thrust surface two is equally divided by the other end of the left and right halves of the composite bearing.

6. The double-effect combined sliding bearing structure according to claim 1, characterized in that: Several thrust pads form a circular thrust surface, and the thrust pads are fixedly connected to the sliding bearing.

7. The double-effect combined sliding bearing structure according to claim 1, characterized in that: The sliding bearing also has oblique holes on the outer side of each V-groove.

8. The double-effect combined sliding bearing structure according to claim 7, characterized in that: The inner ends of the inclined holes are all connected to the corresponding V-shaped grooves, and the outer ends of the inclined holes are all connected to the corresponding through holes.

9. The double-effect combined sliding bearing structure according to claim 1, characterized in that: The right lobe of the composite bearing is provided with a temperature measuring hole for placing a temperature sensor to monitor the bearing temperature status during shaft operation.

10. The double-effect combined sliding bearing structure according to claim 1, characterized in that: A disc flange panel is fixed on the left lobe of the composite bearing, and the disc flange panel has a circular through hole for fixing the entire bearing.

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