Self-lubricating bearing with oil storage cavity

Abstract

The utility model relates to the technical field of self-lubricating bearings, in particular to a self-lubricating bearing with an oil storage cavity, which comprises a bearing bush, a lower base and two connecting blocks A, and further comprises a support strip A, a support strip B and an oil storage cavity, the upper side of the oil absorption sponge plate A is provided with an oil absorption sponge plate B. The outer side of the oil absorption sponge plate A is provided with a lubricating unit A used for providing lubricating liquid for the bearing bush, and the outer side of the oil absorption sponge plate B is provided with a lubricating unit B used for providing lubricating liquid for the bearing bush. And a mounting and positioning unit for mounting the lubricating unit A and the lubricating unit B and positioning a bearing bush is arranged between the supporting strip A and the supporting strip B. The oil absorption sponge plate A, the oil absorption sponge plate B, the lubrication unit A, the lubrication unit B and the installation positioning unit are arranged, the lubrication units are arranged to be independent modules, during replacement, the oil absorption sponge plates or the corresponding modules can be directly and rapidly replaced for maintenance, the maintenance cost is reduced, and the maintenance time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of self-lubricating bearing technology, and in particular to a self-lubricating bearing with an oil reservoir. Background Technology

[0002] Bearings are crucial components in machinery. Their main functions are to support rotating shafts or other moving parts, reduce friction, improve motion efficiency, and bear loads. Self-lubricating bearings are mechanical components that can achieve lubrication with very little or no external lubricant. They achieve their self-lubricating function through special material structure design.

[0003] Currently, common self-lubricating bearings are mainly divided into oil-impregnated bearings and solid-inserted self-lubricating bearings. Oil-impregnated bearings rely on the porous structure of the material itself to store lubricating oil, and through the principle of thermal expansion and contraction, lubricating oil seeps out during operation to form an oil film.

[0004] The oil reservoir of these types of bearings is mostly a fixed structure, and the internal oil-absorbing material cannot be easily replaced after saturation or aging. Maintenance often requires replacing the entire bearing, which is costly and inconvenient. To address this issue, we propose a self-lubricating bearing with an oil reservoir to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing bearings where the oil reservoir is mostly a fixed structure, the internal oil-absorbing material cannot be easily replaced after saturation or aging, and maintenance often requires replacing the entire bearing, which is costly and inconvenient. Therefore, this invention proposes a self-lubricating bearing with an oil reservoir.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a self-lubricating bearing with an oil reservoir, including a bearing shell, a lower base, and two A-connecting blocks. The A-connecting blocks are detachably connected to the upper side of the lower base by bolts and nuts. The bearing also includes:

[0008] A support bar, with a B support bar on the upper side of the A support bar, the A support bar being fixedly connected to the inner side of the lower base, and the B support bar being located between the two A connecting blocks and fixedly connected to the A connecting blocks;

[0009] Oil-absorbing sponge plate A, with oil-absorbing sponge plate B on its upper side. The inner sides of oil-absorbing sponge plates A and B form a circle, and the bearing bush can slide on the inner sides of oil-absorbing sponge plates A and B. An A lubrication unit for providing lubricant to the bearing bush is provided on the outer side of oil-absorbing sponge plate A, and an B lubrication unit for providing lubricant to the bearing bush is provided on the outer side of oil-absorbing sponge plate B. An installation and positioning unit for installing the lubrication units A and B and positioning the bearing bush is provided between the A support strip and the B support strip.

[0010] Preferably, the installation positioning unit includes several positioning strips. The inner side of the A support strip has an A mounting groove, and the inner side of the B support strip has a B mounting groove. An A mounting shell slides inside the A mounting groove, and a B mounting shell slides inside the B mounting groove. Two C connecting grooves are provided on the upper side of the A support strip and the lower side of the B support strip. A B connecting block is detachably installed inside the C connecting groove. The B connecting block can be fixedly connected to either the A mounting shell or the B mounting shell. The inner sides of the A mounting shell and the B mounting shell have an A positioning groove and two B positioning grooves. The inner sides of the A support strip and the B support strip have a C positioning groove and two D positioning grooves. The positioning strip can slide inside the A positioning groove, C positioning groove, B positioning groove, and D positioning groove. The positioning strip is fixedly connected to the outer side of the bearing bush.

[0011] By adopting the above structure, the mounting and positioning unit can position the bearing bush and install and position the A lubrication unit and the B lubrication unit.

[0012] Preferably, both the A mounting slot and the B mounting slot have two C slots on their inner sides, and an auxiliary strip slides inside the C slot. The auxiliary strip is fixedly connected to the A mounting shell or the B mounting shell.

[0013] By adopting the above structure, the auxiliary strip plays a guiding and positioning role in the installation of mounting shell A or mounting shell B, making the installation of mounting shell A or mounting shell B more convenient.

[0014] Preferably, the B lubrication unit includes a B positioning oil reservoir, which is fixedly connected to the inner side of the B mounting shell. The outer side of the B oil-absorbing sponge plate is provided with a B connecting groove. The B positioning oil reservoir can slide inside the B connecting groove. The B oil-absorbing sponge plate can slide inside the B mounting shell. The inner side of the B connecting groove is provided with two B slots. A B slot strip slides inside the B slots and is fixedly connected to the B positioning oil reservoir.

[0015] By adopting the above structure, lubrication unit B can provide lubricating oil from the upper part of the outer side of the bearing bush for lubrication during bearing operation.

[0016] Preferably, an oil reservoir C is fixedly connected to the upper side of the B support bar. The oil reservoir C is located between the two A connecting blocks and is fixedly connected to the A connecting blocks. The lower side of the oil reservoir C is provided with two mounting holes. The upper side of the B support bar is provided with two A through holes. The upper side of the B mounting shell is provided with two B through holes. The upper side of the B positioning oil reservoir is provided with two oil replenishment holes. A B connecting pipe is installed inside the mounting holes. The B connecting pipe slides in a sealed manner inside the A through holes, B through holes and oil replenishment holes.

[0017] By adopting the above structure, the C oil reservoir can store more lubricating oil, increase the service life of the bearing, and reduce the frequency of lubrication.

[0018] Preferably, the A lubrication unit includes an A positioning oil reservoir, which is fixedly connected to the inner side of the A mounting shell. An A connecting groove is provided on the outer side of the A oil-absorbing sponge plate. The A positioning oil reservoir is slidable within the A connecting groove. The A oil-absorbing sponge plate is slidable within the A mounting shell. Two A-slots are provided inside the A connecting groove. An A-slot strip slides inside the A-slot and is fixedly connected to the A positioning oil reservoir. Two oil outlet holes are provided on the lower side of the B positioning oil reservoir. Two oil inlet holes are provided on the upper side of the A positioning oil reservoir. An A connecting pipe slides and is sealed inside the oil inlet holes. The A connecting pipe is fixedly connected to the lower side of the B positioning oil reservoir and communicates with the oil outlet holes.

[0019] By adopting the above structure, lubrication unit A can provide lubricating oil from the lower half of the outer side of the bearing bush for lubrication during bearing operation.

[0020] Preferably, an auxiliary block is fixed inside the positioning oil storage tank A.

[0021] By adopting the above structure, the auxiliary block reduces the internal space of the A-position oil reservoir, reduces the amount of lubricating oil stored in the A-position oil reservoir, facilitates quick use, and reduces the probability of lubricating oil deterioration.

[0022] The self-lubricating bearing with an oil reservoir proposed in this utility model has the following advantages:

[0023] By setting up oil-absorbing sponge plate A, oil-absorbing sponge plate B, lubrication unit A, lubrication unit B, and installation positioning unit, the lubrication unit is set as an independent, sliding module, which can be quickly replaced. When replacing, the oil-absorbing sponge plate or the corresponding module can be directly maintained or replaced, reducing maintenance costs and time. At the same time, the oil-absorbing sponge plate can absorb and slowly release lubricating oil. When the equipment stops working, some of the lubricating oil can be drawn back into the sponge plate due to the drop in temperature, reducing dripping and waste, and improving the efficiency of lubricating oil use.

[0024] By setting up lubrication units A and B, and adding oil reservoir C to work in conjunction with positioning oil reservoirs A and B, and allowing circulation between the three, the amount of lubricating oil is increased, the efficiency of fluid replenishment is improved, the probability of wear due to lack of oil is reduced, and the service life and reliability of the bearing are improved.

[0025] By setting up an auxiliary block, the volume of the oil reservoir located on the lower side can be reduced, allowing the lubricating oil inside to be used preferentially and quickly. This reduces the risk of the lubricating oil deteriorating due to long-term retention, ensures the activity of the lubricating oil, and improves the lubrication quality. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the front side of a self-lubricating bearing with an oil storage cavity proposed in this utility model.

[0027] Figure 2 The present utility model proposes Figure 1 A magnified three-dimensional structural diagram of a portion of area A in the middle;

[0028] Figure 3 This is a three-dimensional cross-sectional view of the front side of a self-lubricating bearing with an oil reservoir, as proposed in this utility model.

[0029] Figure 4 The present utility model proposes Figure 3 A magnified three-dimensional structural diagram of a portion of area B in the middle section;

[0030] Figure 5 This is a three-dimensional cross-sectional view of the left side of a self-lubricating bearing with an oil reservoir proposed in this utility model.

[0031] Figure 6 The present utility model proposes Figure 5 A magnified three-dimensional structural diagram of a portion of the central C area;

[0032] Figure 7 The present utility model proposes Figure 5 A magnified three-dimensional structural diagram of a portion of the central D region.

[0033] In the diagram: 1. Lower base; 2. Connecting block A; 3. Support strip A; 4. Support strip B; 5. Oil-absorbing sponge plate A; 6. Oil-absorbing sponge plate B; 7. Lubrication unit A; 71. Positioning oil reservoir A; 72. Locking strip A; 73. Connecting pipe A; 74. Auxiliary block; 8. Lubrication unit B; 81. Positioning oil reservoir B; 82. Locking strip B; 83. Oil reservoir C; 84. Connecting pipe B; 9. Installation positioning unit; 91. Positioning strip; 92. Mounting shell A; 93. Mounting shell B; 94. Connecting block B; 95. Auxiliary strip. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0035] Reference Figure 1-7 A self-lubricating bearing with an oil storage chamber includes a bearing shell, a lower base 1 and two A connecting blocks 2. The A connecting blocks 2 are detachably connected to the upper side of the lower base 1 by bolts and nuts. It also includes: an A support bar 3 and an A oil-absorbing sponge plate 5.

[0036] A support bar 3 is provided with a support bar 4 on the upper side of B, and oil absorbent sponge board 5 is provided with an oil absorbent sponge board 6 on the upper side of B.

[0037] The outer side of the B oil-absorbing sponge plate 6 is provided with a B lubrication unit 8 for providing lubricating fluid to the bearing bush;

[0038] The B lubrication unit 8 includes a B positioning oil reservoir 81, which is fixedly connected to the inner side of the B mounting shell 93. A B connecting groove is provided on the outer side of the B oil-absorbing sponge plate 6. The B positioning oil reservoir 81 can slide inside the B connecting groove, and the B oil-absorbing sponge plate 6 can slide inside the B mounting shell 93. Two B slots are provided inside the B connecting groove, and B retaining strips 82 slide inside the B slots. The B retaining strips 82 are fixedly connected to the B positioning oil reservoir 81. The B positioning oil reservoir 81 can store a certain amount of lubricating oil. The B oil-absorbing sponge plate 6 is located on the upper outer part of the bearing bush, and the B retaining strips 82 allow the B positioning oil reservoir 81 to be mounted on the B oil-absorbing sponge plate. The oil absorbent sponge plate 6 is installed in the B mounting shell 93 through the B connecting groove. The B positioning oil storage shell 81 has several oil outlet holes on the contact surface with the B oil absorbent sponge plate 6, allowing the oil stored in the B positioning oil storage shell 81 to seep into the B oil absorbent sponge plate 6 through the oil outlet holes, so that the B oil absorbent sponge plate 6 can store lubricating oil. During use, since the expansion coefficient of lubricating oil is greater than that of metal, the lubricating oil is lubricated through the B oil absorbent sponge plate 6 through the moving shaft inside the bearing using several oil outlet holes on the bearing. When the work stops, the temperature drops, and the lubricating oil is partially absorbed back into the B oil absorbent sponge plate 6 as the temperature drops, reducing the waste of lubricating oil.

[0039] A support bar 3 is fixedly connected to the inner side of the lower base 1, and A oil-absorbing sponge plate 5 is provided with an A lubrication unit 7 for providing lubricating fluid to the bearing bush on the outer side;

[0040] Lubrication unit 7 includes an A-positioning oil reservoir 71, with an auxiliary block 74 fixed inside the A-positioning oil reservoir 71. The A-positioning oil reservoir 71 is fixedly connected to the inside of the A-mounting shell 92. An A-connecting groove is provided on the outside of the A-absorbing sponge plate 5. The A-positioning oil reservoir 71 can slide inside the A-connecting groove. The A-absorbing sponge plate 5 can slide inside the A-mounting shell 92. Two A-slots are provided inside the A-connecting groove. An A-slot strip 72 slides inside the A-slots and is fixedly connected to the A-positioning oil reservoir 71. Two oil outlet holes are provided on the lower side of the B-positioning oil reservoir 81. Two oil inlet holes are provided on the upper side of the A-positioning oil reservoir 71. An A-slot strip 72 slides inside the oil inlet holes. Connecting pipe 73, A connecting pipe 73 is fixedly connected to the lower side of B positioning oil reservoir 81 and A connecting pipe 73 is connected to the oil outlet. A positioning oil reservoir 71 allows the lubricating oil in B positioning oil reservoir 81 to flow to A positioning oil reservoir 71 through A connecting pipe 73, so that A positioning oil reservoir 71 can store a certain amount of lubricating oil. The auxiliary block 74 can reduce the internal space of A positioning oil reservoir 71, thereby reducing the amount of lubricating oil stored in A positioning oil reservoir 71. Since A positioning oil reservoir 71 is located on the lower side, a small amount of storage can be used quickly, reducing the residence time of lubricating oil, thereby reducing the probability of lubricating oil deterioration and improving lubrication efficiency.

[0041] The A oil-absorbing sponge plate 5 is located on the lower half of the outer side of the bearing bush. The A positioning oil reservoir 71 is installed in the A connecting groove on the A oil-absorbing sponge plate 5 by the A retainer 72. The A oil-absorbing sponge plate 5 is installed in the A mounting shell 92. Based on the same principle as above, the moving shaft inside the bearing bush is lubricated under the principle of thermal expansion and contraction. Similarly, when the work stops, the temperature drops, and the lubricating oil is partially absorbed back into the A oil-absorbing sponge plate 5, reducing the waste of lubricating oil.

[0042] A C-type oil reservoir 83 is fixedly connected to the upper side of support bar B 4. The C-type oil reservoir 83 is located between two A-type connecting blocks 2 and is fixedly connected to the A-type connecting blocks 2. The lower side of the C-type oil reservoir 83 has two mounting holes. The upper side of support bar B 4 has two A-type through holes. The upper side of mounting shell B 93 has two B-type through holes. The upper side of positioning oil reservoir B 81 has two oil replenishment holes. A B-type connecting pipe 84 is installed inside the mounting holes, and the B-type connecting pipe 84 slides and seals within the A-type through holes, B-type through holes, and oil replenishment holes. The oil reservoir 83 in C flows the lubricating oil to the positioning oil reservoir 81 in B through the connecting pipe 84 in B. After the positioning oil reservoir 71 in A and the positioning oil reservoir 81 in B are full, the lubricating oil will be stored in the oil reservoir 83 in C, which increases the amount of lubricating oil stored, reduces the frequency of oiling, and increases the service life of the bearing. The connecting block 2 in A plays an auxiliary supporting role for the oil reservoir 83 in C, making the oil reservoir 83 in C more stable. An oil filling port is installed on the upper side of the oil reservoir 83 in C for injecting lubricating oil into the oil reservoir 83 in C.

[0043] The inner sides of oil-absorbing sponge plate A 5 and oil-absorbing sponge plate B 6 are circular, and the bearing bush can slide inside oil-absorbing sponge plate A 5 and oil-absorbing sponge plate B 6. Oil-absorbing sponge plate A 5 and oil-absorbing sponge plate B 6 work together to lubricate the moving shaft, enabling the bearing to self-lubricate during operation and improving the bearing's service life. Oil-absorbing sponge plate A 5 and oil-absorbing sponge plate B 6 are installed and fixed to the outer sides of the corresponding mounting shell A 92 and mounting shell B 93 through a simple structure, which is convenient for installation and disassembly, improves the replacement efficiency of oil-absorbing sponge plate A 5 and oil-absorbing sponge plate B 6, and improves the convenience of bearing use.

[0044] An installation and positioning unit 9 is provided between support bar A 3 and support bar B 4 for installing lubrication unit A 7 and lubrication unit B 8 and for positioning bearing bushes;

[0045] The mounting and positioning unit 9 includes several positioning strips 91. Support strip A 3 has an A mounting groove on its inner side, and support strip B 4 has a B mounting groove on its inner side. Mounting shell A 92 slides inside mounting groove A, and mounting shell B 93 slides inside mounting groove B. Both mounting grooves A and B have two locking slots C. An auxiliary strip 95 slides inside the locking slot C. The auxiliary strip 95 is fixedly connected to mounting shell A 92 or mounting shell B 93, and serves to guide and limit the movement of mounting shell A 92 and mounting shell B 93. To make the installation of mounting shell A 92 and mounting shell B 93 more stable, two connecting grooves C are provided on the upper side of support bar A 3 and the lower side of support bar B 4. A connecting block B 94 can be detachably installed inside the connecting groove C. The connecting block B 94 can be fixedly connected to mounting shell A 92 or mounting shell B 93. The connecting block B 94 allows mounting shell A 92 and mounting shell B 93 to be installed and fixed inside the corresponding support bar A 3 and support bar B 4, realizing quick installation and removal of mounting shell A 92 and mounting shell B 93, which is beneficial for subsequent maintenance.

[0046] The inner sides of mounting shell 92 (A) and mounting shell 93 (B) are provided with positioning groove A and two positioning grooves B. The inner sides of support bar 3 (A) and support bar 4 (B) are provided with positioning groove C and two positioning grooves D. Positioning bar 91 can slide inside positioning grooves A, C, B, and D. Positioning bar 91 is fixedly connected to the outer side of bearing bush. Positioning bar 91 positions bearing bush inside support bar 3 (A), support bar 4 (B), mounting shell 92 (A), and mounting shell 93 (B), reducing the probability of bearing bush shaking and displacement, and improving the stability of the device.

[0047] Support bar 4 is located between the two connecting blocks 2 of A and is fixedly connected to the connecting blocks 2 of A.

[0048] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-lubricating bearing with an oil reservoir, comprising a bearing shell, a lower base (1), and two A-connecting blocks (2), wherein the A-connecting blocks (2) are detachably connected to the upper side of the lower base (1) by bolts and nuts, characterized in that, Also includes: A support bar (3), and a B support bar (4) is provided on the upper side of the A support bar (3). The A support bar (3) is fixedly connected to the inner side of the lower base (1). The B support bar (4) is located between two A connecting blocks (2) and is fixedly connected to the A connecting blocks (2). Oil-absorbing sponge plate A (5), oil-absorbing sponge plate B (6) is provided on the upper side of oil-absorbing sponge plate A (5), oil-absorbing sponge plate A (5) and oil-absorbing sponge plate B (6) form a circle on the inner side and the bearing can slide on the inner side of oil-absorbing sponge plate A (5) and oil-absorbing sponge plate B (6), oil-absorbing sponge plate A (5) is provided on the outer side for providing lubricant to the bearing, oil-absorbing sponge plate B (6) is provided on the outer side for providing lubricant to the bearing, and support bar A (3) and support bar B (4) are provided with installation and positioning unit (9) for installing lubricant unit A (7) and lubricant unit B (8) and positioning bearing.

2. The self-lubricating bearing with an oil reservoir according to claim 1, characterized in that, The installation positioning unit (9) includes several positioning strips (91). The inner side of the A support strip (3) is provided with an A mounting groove, and the inner side of the B support strip (4) is provided with a B mounting groove. The A mounting shell (92) slides inside the A mounting groove, and the B mounting shell (93) slides inside the B mounting groove. The upper side of the A support strip (3) and the lower side of the B support strip (4) are provided with two C connecting grooves. The B connecting block (94) is detachably installed inside the C connecting groove. The B connecting block (94) can be fixedly connected to the A mounting shell (92) or the B mounting shell (93). The inner side of the A mounting shell (92) and the B mounting shell (93) is provided with an A positioning groove and two B positioning grooves. The inner side of the A support strip (3) and the B support strip (4) is provided with a C positioning groove and two D positioning grooves. The positioning strip (91) can slide inside the A positioning groove, C positioning groove, B positioning groove and D positioning groove. The positioning strip (91) is fixedly connected to the outer side of the bearing bush.

3. A self-lubricating bearing with an oil reservoir according to claim 2, characterized in that, Both the A mounting slot and the B mounting slot have two C slots on their inner sides. An auxiliary strip (95) slides on the inner side of the C slot. The auxiliary strip (95) is fixedly connected to the A mounting shell (92) or the B mounting shell (93).

4. A self-lubricating bearing with an oil reservoir according to claim 2, characterized in that, The B lubrication unit (8) includes a B positioning oil reservoir (81), which is fixedly connected to the inner side of the B mounting shell (93). The outer side of the B oil-absorbing sponge plate (6) is provided with a B connecting groove. The B positioning oil reservoir (81) can slide inside the B connecting groove. The B oil-absorbing sponge plate (6) can slide inside the B mounting shell (93). The inner side of the B connecting groove is provided with two B slots. A B slot strip (82) slides inside the B slot. The B slot strip (82) is fixedly connected to the B positioning oil reservoir (81).

5. A self-lubricating bearing with an oil reservoir according to claim 4, characterized in that, The upper side of the B support bar (4) is fixedly connected to the C oil storage shell (83). The C oil storage shell (83) is located between the two A connecting blocks (2) and is fixedly connected to the A connecting blocks (2). The lower side of the C oil storage shell (83) is provided with two mounting holes. The upper side of the B support bar (4) is provided with two A through holes. The upper side of the B mounting shell (93) is provided with two B through holes. The upper side of the B positioning oil storage shell (81) is provided with two oil replenishment holes. The B connecting pipe (84) is installed inside the mounting hole. The B connecting pipe (84) slides in a sealed manner inside the A through holes, B through holes and oil replenishment holes.

6. A self-lubricating bearing with an oil reservoir according to claim 2, characterized in that, The A lubrication unit (7) includes an A positioning oil reservoir (71), which is fixedly connected to the inner side of the A mounting shell (92). The A oil-absorbing sponge plate (5) is provided with an A connecting groove on its outer side. The A positioning oil reservoir (71) can slide inside the A connecting groove. The A oil-absorbing sponge plate (5) can slide inside the A mounting shell (92). The A connecting groove is provided with two A slots. An A slot strip (72) slides inside the A slot. The A slot strip (72) is fixedly connected to the A positioning oil reservoir (71). The B positioning oil reservoir (81) is provided with two oil outlet holes on its lower side. The A positioning oil reservoir (71) is provided with two oil inlet holes on its upper side. An A connecting pipe (73) is sealed and slides inside the oil inlet holes. The A connecting pipe (73) is fixedly connected to the lower side of the B positioning oil reservoir (81) and communicates with the oil outlet holes.

7. A self-lubricating bearing with an oil reservoir according to claim 6, characterized in that, An auxiliary block (74) is fixed inside the A positioning oil storage shell (71).

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