Self-lubricating structure of bearing seat

Abstract

The application provides a self-lubricating structure of a bearing seat, and relates to the technical field of bearing seats.The self-lubricating structure comprises a lower seat body, a lower lubricating storage cavity in a semicircular cavity structure is arranged on the front side and the rear side of the inside of the lower seat body, an upper lubricating storage cavity in a semicircular cavity structure is arranged on the front side and the rear side of the inside of an upper seat body, when lubricating oil is stored in the lubricating storage cavity, the lubricating oil penetrates into the linoleum sleeve through the holes under the action of gravity and capillary force, the lower linoleum sleeve and the upper linoleum sleeve can stably contact the bearing surface through the arrangement of the lower shaping steel wire and the upper shaping steel wire, the linoleum sleeve is supported and shaped, the absorbed lubricating oil in the linoleum sleeve is squeezed out when the bearing rotates, the squeezed-out lubricating oil forms a lubricating oil film on the bearing surface, the continuous self-lubrication of the bearing is realized, and the problem that the existing bearing seat structure cannot realize omnidirectional self-lubrication of the bearing is solved.

Description

Technical Field

[0001] This invention relates to the field of bearing housing technology, and more particularly to a self-lubricating structure for a bearing housing. Background Technology

[0002] In modern mechanical equipment, bearings are key components, and their performance plays a crucial role in the operational stability, reliability, and service life of the machinery. During operation, bearings generate a significant amount of heat due to friction, leading not only to energy loss but also to wear, fatigue, and even failure, thus affecting the normal operation of the entire equipment. Therefore, effective lubrication of bearings is a key measure to reduce friction, minimize wear, and extend bearing life.

[0003] Currently, the two most common bearing lubrication methods on the market are grease lubrication and oil lubrication. While grease lubrication offers advantages such as simple sealing and low leakage, its poor fluidity makes it difficult to achieve uniform lubrication of the bearing. Furthermore, under high temperature and high speed conditions, the performance of grease deteriorates significantly, failing to meet the lubrication requirements of the bearing. Oil lubrication, while providing better lubrication, typically requires an additional lubrication system, such as an oil pump and oil pipes. This not only increases the cost and complexity of the equipment but also leads to problems such as oil leakage and difficult maintenance. In addition, existing bearing housing structures have some design shortcomings. Some bearing housings have limited lubrication chamber space, unable to store sufficient lubricating oil, resulting in frequent oil replenishment and increased maintenance costs and workload. Uneven distribution of lubricating oil within the bearing housing also affects the bearing's lubrication effect, preventing comprehensive self-lubrication. Summary of the Invention

[0004] This invention relates to a self-lubricating structure for bearing housings, which solves the problem that existing bearing housing structures cannot achieve all-round self-lubrication of bearings.

[0005] This invention provides a self-lubricating structure for a bearing housing, specifically comprising: a lower housing body; a semi-circular mounting groove formed on the top surface of the lower housing body; a lower notch formed on the front and rear surfaces of the lower housing body relative to the axial center of the lower mounting groove, the lower notch being semi-circular and having a diameter smaller than that of the lower mounting groove; a semi-annular lubrication storage cavity formed on both the front and rear sides of the lower housing body, the lower lubrication storage cavity penetrating the top surface of the lower housing body; and three lower lubrication openings formed on both the front and rear sides of the inner end of the lower mounting groove, each communicating with an adjacent lower lubrication storage cavity; the lower housing body... The upper seat has a semi-circular block structure. A semi-circular upper mounting groove with the same diameter as the lower mounting groove is formed on the bottom surface of the upper seat. An upper notch with the same diameter is formed on both the front and rear surfaces of the upper seat relative to the axis of the upper mounting groove. The upper notch also has a semi-circular groove structure with the same diameter as the lower notch. A semi-annular upper lubrication storage cavity is formed on both the front and rear sides of the upper seat, penetrating the bottom surface of the upper seat. Three upper lubrication openings are formed on both the front and rear sides of the inner end of the upper mounting groove, each communicating with an adjacent upper lubrication storage cavity.

[0006] Furthermore, the upper side of the upper seat body is provided with a connecting cavity that communicates with the two upper lubrication storage cavities. The connecting cavity has a circular hole structure. A matching protrusion with a circular block structure is fixedly installed on the top surface of the upper seat body. A threaded through hole communicating with the connecting cavity is opened at the axial part of the top surface of the matching protrusion. A sealing bolt is installed in the threaded through hole.

[0007] Furthermore, the bottom end face of the upper seat body is provided with an upper sealing groove with a rectangular groove structure at the bottom opening end of the upper lubrication storage cavity; the top end face of the lower seat body is provided with a lower sealing groove with a rectangular groove structure at the top opening end of the lower lubrication storage cavity.

[0008] Furthermore, a rectangular frame structure sealing gasket is inserted between the upper sealing groove and the lower sealing groove for sealing.

[0009] Furthermore, a threaded blind hole is provided on both the left and right sides of the top surface of the lower seat; two mating blocks are provided symmetrically on the top surface of the upper seat, and each of the two mating blocks has an insertion hole that penetrates the bottom surface of the upper seat; a locking bolt is inserted into each of the two insertion holes, and the stud end of the locking bolt is fixedly connected to the threaded blind hole; a mounting block is fixedly installed on the left and right end surfaces of the lower seat, and each of the two mounting blocks has an installation hole that penetrates its bottom surface.

[0010] Furthermore, a lower shaping steel wire is fixedly installed inside the lower lubrication storage cavity relative to the six lower lubrication openings, passing through the lower lubrication openings, and a lower oil felt sleeve is sleeved on the outside of the lower shaping steel wire; a lower sealing gasket is installed between the inner circumferential surface of the lower lubrication opening and the outer circumferential surface of the lower oil felt sleeve.

[0011] Furthermore, an upper shaping steel wire is fixedly installed inside the upper lubrication storage cavity relative to the six upper lubrication openings, passing through the upper lubrication openings, and an upper oil felt sleeve is sleeved on the outside of the upper shaping steel wire; an upper sealing gasket is installed between the inner circumferential surface of the upper lubrication opening and the outer circumferential surface of the upper oil felt sleeve.

[0012] This invention provides a self-lubricating structure for a bearing housing, which has the following beneficial effects:

[0013] The bearing housing of this invention adopts a split design, consisting of a lower housing and an upper housing. The lower and upper mounting grooves together form a complete bearing installation space. The lower lubrication storage cavity and the upper lubrication storage cavity are respectively located inside the lower housing and the upper housing, and have a semi-annular cavity structure, which can store a large amount of lubricating oil and provide a sufficient oil source for self-lubrication. The design of the connecting cavity allows the lubricating oil to be easily injected from the outside and evenly distributed to the upper and lower lubrication storage cavities.

[0014] In this invention, the lower and upper lubrication openings connect the lower and upper lubrication storage cavities to the bearing mounting space, respectively. When lubricating oil is stored in the lubrication storage cavity, the lubricating oil will permeate into the oil felt sleeve through these openings under its own gravity and capillary action. The lower and upper shaping steel wires support and shape the oil felt sleeve, allowing it to maintain stable contact with the bearing surface. Even if vibration occurs during bearing rotation, the oil felt sleeve will not easily detach from the bearing surface. When the bearing rotates, the friction between the oil felt sleeve and the bearing surface will cause the lubricating oil absorbed in the oil felt sleeve to be squeezed out. The squeezed-out lubricating oil will form a lubricating oil film on the bearing surface, achieving continuous self-lubrication of the bearing in all directions.

[0015] This invention effectively prevents lubricating oil from leaking from the opening of the lubrication storage cavity by setting up a lower sealing groove, an upper sealing groove, and a sealing gasket, ensuring the effective storage and use of lubricating oil in the system. The lower and upper sealing gaskets further ensure that lubricating oil will not leak from the lubrication opening, while ensuring the sealing between the oil felt sleeve and the lubrication opening. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0018] In the attached diagram:

[0019] Figure 1 A schematic diagram of the isometric structure of the present invention is shown;

[0020] Figure 2 A schematic diagram of the top isometric structure of the present invention in its split state is shown;

[0021] Figure 3 A schematic diagram of the bottom isometric structure of the present invention in its split state is shown.

[0022] Figure 4 A schematic diagram of the isometric structure of the lower seat of the present invention is shown;

[0023] Figure 5 The present invention is shown Figure 4 A magnified view of the structure at point A in the middle;

[0024] Figure 6 A schematic cross-sectional view of the lower seat structure of the present invention is shown;

[0025] Figure 7 The present invention is shown Figure 6 A magnified schematic diagram of the structure at point B in the middle;

[0026] Figure 8 The present invention is shown Figure 7 Schematic diagram of the structure with the lower and middle oil felt sleeves, lower shaping steel wires and lower sealing gaskets removed;

[0027] Figure 9 This diagram shows a top isometric view of the upper body structure in its disassembled state according to the present invention.

[0028] Figure 10 This diagram shows a schematic diagram of the bottom isometric structure of the upper body in its disassembled state according to the present invention;

[0029] Figure 11 The present invention is shown Figure 10 A magnified schematic diagram of the structure at point C in the middle;

[0030] Figure 12 A schematic cross-sectional view of the upper seat structure of the present invention is shown;

[0031] Figure 13 The present invention is shown Figure 12 A magnified schematic diagram of the structure at point D in the middle;

[0032] Figure 14 The present invention is shown Figure 13 Schematic diagram of the structure with the upper and middle oil felt sleeves, upper shaping steel wires and upper sealing gaskets removed;

[0033] Figure 15 A cross-sectional structural schematic diagram of the present invention is shown;

[0034] Figure 16 The present invention is shown Figure 15 A magnified schematic diagram of the structure at point E in the middle;

[0035] List of reference numerals

[0036] 1. Lower seat body; 101. Mounting block; 102. Mounting hole; 103. Lower mounting groove; 104. Lower notched groove; 105. Threaded blind hole; 106. Lower lubrication storage cavity; 107. Lower sealing mating groove; 108. Lower oil felt sleeve; 109. Lower shaping steel wire; 1010. Lower sealing gasket; 1011. Lower lubrication opening; 2. Upper seat body; 201. Upper mounting groove; 202. Upper notched groove; 203. Mating block; 204. Locking bolt; 205. Mating protrusion; 206. Sealing bolt; 207. Insertion hole; 208. Threaded through hole; 209. Upper lubrication storage cavity; 2010. Upper sealing mating groove; 2011. Connecting cavity; 2012. Upper oil felt sleeve; 2013. Upper shaping steel wire; 2014. Upper sealing washer; 2015. Upper lubrication opening; 3. Sealing washer. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example: Please refer to Figures 1 to 16 :

[0039] This invention proposes a self-lubricating structure for a bearing housing, comprising: a lower housing 1, a lower mounting groove 103 with a semi-circular groove structure on the top surface of the lower housing 1, a lower notch 104 connected to the lower mounting groove 103 on both the front and rear surfaces of the lower housing 1 relative to the axial center of the lower mounting groove 103, the lower notch 104 having a semi-circular groove structure and a diameter smaller than that of the lower mounting groove 103; and a lower lubrication storage cavity 106 with a semi-annular cavity structure on both the front and rear sides inside the lower housing 1, the lower lubrication storage cavity 106 penetrating the lower housing 1. The top surface; the inner front side and inner rear side of the lower mounting groove 103 each have three lower lubrication openings 1011 that communicate with the adjacent lower lubrication storage cavity 106; above the lower seat body 1 is an upper seat body 2 with a semi-circular block structure. The bottom end surface of the upper seat body 2 has an upper mounting groove 201 with a semi-circular groove structure. The diameter of the upper mounting groove 201 is the same as the diameter of the lower mounting groove 103. The front end surface and the rear end surface of the upper seat body 2 have an upper notch 202 that communicates with the axial part of the upper mounting groove 201. The upper notch 202 is a semi-circular groove structure. The upper notch 202 has the same diameter as the lower notch 104; the upper seat 2 has a semi-annular upper lubrication storage cavity 209 on both the front and rear sides, which extends through the bottom surface of the upper seat 2; the upper mounting groove 201 has three upper lubrication openings 2015 on both the front and rear sides of its inner end, which are connected to the adjacent upper lubrication storage cavities 209; the upper seat 2 has a connecting cavity 2011 on its upper side, which is connected to the two upper lubrication storage cavities 209, and the connecting cavity 2011 has a circular hole structure; the upper seat 2 has a semi-annular upper lubrication storage cavity 209 on its upper side. A circular block-shaped mating protrusion 205 is fixedly installed on the top surface of the upper body 2. A threaded through hole 208 connected to the connecting cavity 2011 is opened at the axial part of the top surface of the mating protrusion 205. A sealing bolt 206 is installed in the threaded through hole 208. An upper sealing mating groove 2010 with a rectangular groove structure is opened on the bottom end of the upper seat 2 relative to the bottom opening end of the upper lubrication storage cavity 209. A lower sealing mating groove 107 with a rectangular groove structure is opened on the top end of the lower seat 1 relative to the top opening end of the lower lubrication storage cavity 106.

[0040] Among them, a rectangular frame structure sealing gasket 3 is inserted between the upper sealing groove 2010 and the lower sealing groove 107 for sealing; a threaded blind hole 105 is opened on both the left and right sides of the top surface of the lower seat 1; two mating blocks 203 are symmetrically arranged on the top surface of the upper seat 2, and each of the two mating blocks 203 has an insertion hole 207 that penetrates the bottom surface of the upper seat 2; a locking bolt 204 is inserted into each of the two insertion holes 207, and the stud end of the locking bolt 204 is fixedly connected to the threaded blind hole 105; a mounting block 101 is fixedly installed on the left and right end surfaces of the lower seat 1, and each of the two mounting blocks 101 has an installation hole 102 that penetrates its bottom surface.

[0041] In the lower lubrication storage cavity 106, a lower shaping steel wire 109 is fixedly installed inside each of the six lower lubrication openings 1011, passing through the lower lubrication opening 1011. A lower oil felt sleeve 108 is sleeved on the outside of the lower shaping steel wire 109. A lower sealing gasket 1010 is installed to seal between the inner circumferential surface of the lower lubrication opening 1011 and the outer circumferential surface of the lower oil felt sleeve 108. In the upper lubrication storage cavity 209, an upper shaping steel wire 2013 is fixedly installed inside each of the six upper lubrication openings 2015, passing through the upper lubrication opening 2015. An upper oil felt sleeve 2012 is sleeved on the outside of the upper shaping steel wire 2013. An upper sealing gasket 2014 is installed to seal between the inner circumferential surface of the upper lubrication opening 2015 and the outer circumferential surface of the upper oil felt sleeve 2012.

[0042] The working principle of this embodiment:

[0043] Place the lower seat 1 in the predetermined installation position. Secure the lower seat 1 to the equipment mounting base using appropriate bolts or other fasteners through the mounting holes 102 on the mounting block 101 to ensure the stability of the lower seat 1. Carefully place the bearing to be installed in the lower mounting groove 103 and adjust the position of the bearing to accurately fit the lower mounting groove 103, ensuring that the axis of the bearing coincides with the axis of the lower mounting groove 103. Then cover the lower seat 1 with the upper seat 2, so that the upper mounting groove 201 and the lower mounting groove 103 together form a complete circular space, completely enclosing the bearing. At the same time, ensure that the upper notch 202 and the lower notch 104 are precisely aligned for subsequent installation and use.

[0044] Insert the locking bolt 204 into the insertion hole 207 of the upper seat 2, and then use a wrench or other tools to screw the locking bolt 204 into the threaded blind hole 105 of the lower seat 1, and gradually tighten it so that the upper seat 2 and the lower seat 1 are tightly connected together, thereby firmly fixing the bearing in the bearing housing.

[0045] Use a screwdriver to unscrew the sealing bolt 206 at the center of the top surface of the mating protrusion 205, exposing the threaded through hole 208. Slowly pour an appropriate amount of lubricating oil into the connecting cavity 2011 through the threaded through hole 208. Since the connecting cavity 2011 is connected to the two upper lubrication storage cavities 209, the lubricating oil will flow into the upper lubrication storage cavity 209 under the action of gravity. At the same time, the lubricating oil will also flow into the lower lubrication storage cavity 106 through the connecting structure between the upper seat 2 and the lower seat 1 (lower lubrication storage cavity 106 and upper lubrication storage cavity 209). After observing that the lubricating oil has reached the appropriate level, stop adding lubricating oil and use a screwdriver to screw the sealing bolt 206 back into the threaded through hole 208 to tighten the seal and prevent lubricating oil leakage.

[0046] Furthermore, the lubricating oil will penetrate into the upper oil felt sleeve 2012 through the upper lubrication openings 2015 on the front and rear sides of the inner end of the upper mounting groove 201, and also penetrate into the lower oil felt sleeve 108 through the lower lubrication openings 1011 on the front and rear sides of the inner end of the lower mounting groove 103.

[0047] After the bearing is installed, the lower oil felt sleeve 108 and the upper oil felt sleeve 2012, supported and shaped by their respective lower shaping steel wires 109 and upper shaping steel wires 2013, always maintain close contact with the bearing surface. Due to the good oil absorption and storage properties of the oil felt sleeve, as the bearing rotates, the lubricating oil absorbed in the oil felt sleeve will be gradually squeezed out under the action of friction and evenly coated on the bearing surface, forming a thin lubricating oil film. This lubricating oil film can effectively reduce the frictional resistance when the bearing rotates, reduce the wear between the bearing and the bearing housing, thereby achieving continuous self-lubrication of the bearing, ensuring the normal operation of the bearing and extending its service life.

Claims

1. A self-lubricating structure for a bearing housing, characterized in that, include: The lower seat (1) has a semi-circular groove (103) on its top surface. The front and rear surfaces of the lower seat (1) share a common lower notch (104) connected to the lower mounting groove (103) at its axial center. The lower notch (104) is semi-circular and its diameter is smaller than that of the lower mounting groove (103). The lower seat (1) has a semi-annular lubrication storage cavity (106) on both its front and rear sides, penetrating the top surface of the lower seat (1). The lower mounting groove (103) has three lower lubrication openings (1011) on its inner front and rear sides, each connected to an adjacent lower lubrication storage cavity (106). Above the lower seat (1) is an upper seat with a semi-circular block structure. The upper seat (2) has a semi-circular groove structure on its bottom end face, and the diameter of the upper mounting groove (201) is the same as that of the lower mounting groove (103). The front end face and the rear end face of the upper seat (2) have a common upper notch (202) connected to the axial part of the upper mounting groove (201). The upper notch (202) has a semi-circular groove structure and the diameter of the upper notch (202) is the same as that of the lower notch (104). The upper seat (2) has a semi-annular cavity structure on its front side and rear side inside, and the upper lubrication storage cavity (209) penetrates the bottom end face of the upper seat (2). The upper mounting groove (201) has three upper lubrication openings (2015) connected to the adjacent upper lubrication storage cavities (209) on its inner front side and inner rear side. Inside the lower lubrication storage cavity (106), a lower shaping steel wire (109) is fixedly installed at each of the six lower lubrication openings (1011), passing through the lower lubrication opening (1011). A lower oil felt sleeve (108) is sleeved on the outside of the lower shaping steel wire (109). A lower sealing gasket (1010) is installed between the inner circumferential surface of the lower lubrication opening (1011) and the outer circumferential surface of the lower oil felt sleeve (108). Inside the upper lubrication storage cavity (209), a top-shaped steel wire (2013) is fixedly installed at each of the six upper lubrication openings (2015), passing through the upper lubrication opening (2015). An upper oil felt sleeve (2012) is sleeved on the outside of the upper-shaped steel wire (2013). An upper sealing gasket (2014) is installed between the inner circumferential surface of the upper lubrication opening (2015) and the outer circumferential surface of the upper oil felt sleeve (2012).

2. The self-lubricating structure of a bearing housing according to claim 1, characterized in that, The upper seat (2) has a connecting cavity (2011) on its upper side that is connected to the two upper lubrication storage cavities (209). The connecting cavity (2011) has a circular hole structure. A matching protrusion (205) with a circular block structure is fixedly installed on the top surface of the upper seat (2). A threaded through hole (208) connected to the connecting cavity (2011) is opened at the axial part of the top surface of the matching protrusion (205). A sealing bolt (206) is installed in the threaded through hole (208).

3. The self-lubricating structure of a bearing housing according to claim 2, characterized in that, The bottom end face of the upper seat (2) is provided with an upper sealing groove (2010) in the shape of a rectangular groove at the bottom opening end of the upper lubrication storage cavity (209); the top end face of the lower seat (1) is provided with a lower sealing groove (107) in the shape of a rectangular groove at the top opening end of the lower lubrication storage cavity (106).

4. The self-lubricating structure of a bearing housing according to claim 3, characterized in that, A rectangular frame structure sealing gasket (3) is inserted between the upper sealing groove (2010) and the lower sealing groove (107).

5. The self-lubricating structure of a bearing housing according to claim 4, characterized in that, The lower seat (1) has a threaded blind hole (105) on both the left and right sides of its top surface; the upper seat (2) has two mating blocks (203) on its top surface in a symmetrical manner, and the top surfaces of the two mating blocks (203) each have an insertion hole (207) that penetrates the bottom surface of the upper seat (2); a locking bolt (204) is inserted into each of the two insertion holes (207), and the stud end of the locking bolt (204) is fixedly connected to the threaded blind hole (105); a mounting block (101) is fixedly installed on the left and right ends of the lower seat (1), and the top surfaces of the two mounting blocks (101) each have an installation hole (102) that penetrates their bottom surfaces.

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