Lubricating device in bearing rolling cavity

Abstract

The utility model provides a lubricating device in a bearing rolling cavity, which comprises a power joint and a positioning embedded shell, the right side of the power joint is provided with a group of oil guide inner cores for supplying oil to an internal bearing body, and the interior of each oil guide inner core is of a hollow structure; the inner diameter of the cross section of the middle position of the oil guide inner core is larger than the inner diameter of the cross section of the left side and the inner diameter of the cross section of the right side, the outer sides of the left end and the right end of the oil guide inner core are each provided with a bearing groove used for containing a bearing body, and the upper end of the oil guide inner core located in the bearing grooves is provided with a plurality of inner oil guide holes used for leaking bearing lubricating oil. Compared with the prior art, the utility model has the following beneficial effects: the left positioning shell and the right positioning shell are fixed at the two ends of the main shell by using the bolts, so that the left sealing plate and the right sealing plate tightly press the inner sealing strip to form axial sealing, and the power joint is connected to an external oil pump; and the oil uniformly seeps to a bearing raceway from the inner oil guide holes in the two sides.

Description

Technical Field

[0001] This utility model belongs to the field of bearing lubrication technology and relates to a bearing rolling cavity lubrication device. Background Technology

[0002] The main drawbacks of existing bearings, such as the inability to completely lubricate the bearing raceway during operation, include uneven lubrication, short lubrication life, poor heat dissipation, and high maintenance costs. These drawbacks arise because the lubricant distribution within the bearing raceway is uneven, failing to form a continuous and effective lubricating film. This leads to increased friction in localized areas, inconsistent wear, and consequently, affects bearing performance and lifespan. Furthermore, insufficient lubrication prevents the effective dissipation of heat generated during bearing operation, further exacerbating wear and damage.

[0003] Conventional solutions include periodically replenishing lubricant, using high-quality lubricating materials, and employing centralized lubrication systems. However, these methods also have drawbacks. While periodically replenishing lubricant can temporarily alleviate insufficient lubrication, it cannot guarantee the continuity and uniformity of lubrication, and frequent maintenance increases operating costs and downtime. Using high-quality lubricating materials can improve lubrication performance, but the cost is high, making it less economical for large-scale applications. Centralized lubrication systems can achieve relatively uniform lubrication, but their installation and maintenance costs are high, and retrofitting existing bearing systems is difficult and impractical. Therefore, there is an urgent need for an in-cavity lubrication device for bearings to address these issues. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bearing rolling cavity internal lubrication device to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a bearing rolling cavity internal lubrication device, comprising: a power connector and a positioning insert, wherein a set of oil guide cores for supplying oil to the internal bearing body is provided on the right side of the power connector, and the oil guide cores are hollow inside;

[0006] The inner diameter of the cross-section at the middle position of the oil guide core is larger than the inner diameter of the cross-sections on the left and right sides. A set of bearing grooves for placing bearing bodies are respectively provided on the outer side of the left and right ends of the oil guide core. A set of bearing bodies to be lubricated is provided inside each set of bearing grooves. Several sets of inner oil guide holes for the lubricating oil of the bearing are provided on the upper end of the oil guide core located inside the bearing groove. Several sets of inner oil guide holes are evenly attached to the inner side of the bearing body. A set of main shells for sealing and covering the inside of the bearing grooves is provided on the outer side of the two sets of bearing grooves.

[0007] In a preferred embodiment, the left side of the main shell is provided with a set of left sealing plates for sealing the left end of the main shell, and the right side of the main shell is provided with a set of right sealing plates for sealing the right end of the main shell.

[0008] In a preferred embodiment, the left and right sealing plates are of the same specification. A set of left positioning shells is provided on the outer left side of the main housing to maintain the position of the left sealing plate, and a set of right positioning shells is provided on the outer right side of the main housing to maintain the position of the right sealing plate. In actual use, before operation, the alignment of the inner diameter changing section of the oil guide core with the bearing groove needs to be checked. The two sets of bearing bodies are then installed into the left and right bearing grooves respectively, ensuring that the inner ring of the bearing body fits tightly with the inner oil guide hole. The left and right positioning shells are then fixed to both ends of the main housing with bolts. The left and right sealing plates press the inner sealing strip to form an axial seal. The power connector is connected to the external oil pump. After being buffered by the expansion zone in the middle section of the oil guide core, the lubricating oil seeps evenly from the inner oil guide holes on both sides to the bearing raceway. During the lubrication process, observe the oil pressure indication at the external connecting lead. When the oil fills the cavity of the oil guide core, stop the oil supply. Use the positioning insert to ensure that the bearing body and the oil guide head rotate concentrically. When disassembling, first release the oil pressure, then remove the fixing bolts of the left and right positioning shells in sequence. After pulling out the oil guide core, the lubricated bearing body can be taken out.

[0009] In a preferred embodiment, the left sealing plate and the right sealing plate are respectively connected and fixed to the left positioning shell and the right positioning shell by bolts, and the lower end of the main shell is provided with two sets of support seats for supporting the lower end of the main shell.

[0010] In a preferred embodiment, the support base is fixed to the main housing by bolts, the upper end of the left positioning housing is provided with a set of oil injection heads for introducing external lubricating oil, and the upper end of the right positioning housing is provided with a set of oil guide heads for discharging excess lubricating oil from inside the bearing groove.

[0011] In a preferred embodiment, the oil injection head penetrates the interior of the left positioning housing and communicates with the interior of the left bearing groove, while the oil guide head penetrates the interior of the positioning housing and communicates with the interior of the right bearing groove.

[0012] In a preferred embodiment, the left sealing plate has an inner sealing strip at its connection point with the power connector to maintain the seal on the left side of the left bearing groove, and the right sealing plate has an inner sealing strip at its connection point with the external connecting element to maintain the seal on the right side of the right bearing groove. The two sets of inner sealing strips are respectively fitted into the inner sides of the left and right sealing plates and fixed by bolts. First, the main housing is fixed to the working plane by the support base, ensuring that the two sets of bearing bodies are respectively installed in the left and right bearing grooves and concentrically positioned with the oil guide core. Secure the left and right positioning shells to both ends of the main shell, so that the left and right sealing plates press against the inner sealing strip to form an axial seal. After connecting the oil injection head to the external oil pump, start the oil supply. The lubricating oil is buffered by the expansion zone in the middle section of the oil guide core and seeps evenly from the inner oil guide hole to the bearing raceway. Observe the oil output status of the oil guide head during the lubrication process. Stop the oil injection when the oil flows continuously. When disassembling, first release the oil pressure, loosen the positioning shell bolts, and then remove the left and right sealing plates in sequence. Check the wear condition of the inner sealing strip and the bearing groove mating surface. The lubrication of the bearing raceway is then completed.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are as follows: the left and right positioning shells are fixed to the two ends of the main shell by bolts, so that the left and right sealing plates press the inner sealing strip to form an axial seal. The power connector is connected to the external oil pump. After the lubricating oil is buffered by the expansion area in the middle section of the oil guide core, it seeps evenly from the inner oil guide holes on both sides to the bearing raceway. During the lubrication process, the oil pressure indication at the external connecting lead is observed. When the oil fills the cavity of the oil guide core, the oil supply is stopped. The positioning insert is used to ensure that the bearing body and the oil guide head rotate concentrically. When disassembling, the oil pressure is released first, and the fixing bolts of the left and right positioning shells are removed in sequence. After the oil guide core is pulled out, the lubricated bearing body can be taken out.

[0014] First, the main housing is fixed to the working plane by bolt connection. Ensure that the two sets of bearing bodies are installed in the left and right bearing grooves respectively and are concentrically positioned with the oil guide core. Secure the left and right positioning shells to both ends of the main housing with bolts, so that the left and right sealing plates press the inner sealing strip to form an axial seal. After connecting the oil injection head to the external oil pump, start the oil supply. The lubricating oil is buffered by the expansion area in the middle section of the oil guide core and seeps evenly from the inner oil guide hole to the bearing raceway. Observe the oil output status of the oil guide head during the lubrication process. Stop the oil injection when the oil flows continuously. When disassembling, first release the oil pressure, loosen the positioning shell bolts, and then remove the left and right sealing plates in sequence. Check the wear of the inner sealing strip and the bearing groove mating surface. The lubrication of the bearing raceway is completed, thus completing the lubrication of the bearing interior. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view of the right oblique front side of the bearing rolling cavity lubrication device of this utility model.

[0017] Figure 2 This is a top view of the left oblique front side of the oil guide core in the bearing rolling cavity lubrication device of this utility model.

[0018] Figure 3 This is a top view of the left oblique side structure of the oil guide core and two sets of bearing bodies after disassembly in the bearing rolling cavity lubrication device of this utility model.

[0019] In the diagram: 100-Power connector, 110-Left sealing plate, 120-Left positioning shell, 130-Oil injection head, 140-Main shell, 150-Support seat, 160-Right positioning shell, 170-Oil guide head, 180-Right sealing plate, 190-Inner sealing strip, 200-Outer connecting lead, 210-Bearing body, 220-Oil guide inner core, 230-Bearing groove, 240-Inner oil guide hole, 250-Positioning insert. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3 As the first embodiment of this utility model:

[0022] A bearing rolling cavity lubrication device includes: a power connector 100 and a positioning insert 250. The power connector 100 has a set of oil guide cores 220 on the right side for supplying oil to the internal bearing body 210. The oil guide cores 220 have a hollow structure inside.

[0023] The inner diameter of the cross-section at the middle position of the oil guiding core 220 is larger than the length of the inner diameter of the cross-section on the left and right sides. A set of bearing grooves 230 for placing bearing bodies 210 is provided on the outer side of the left and right ends of the oil guiding core 220. A set of bearing bodies 210 to be lubricated is provided inside each set of bearing grooves 230. Several sets of inner oil guiding holes 240 for seeping out bearing lubricating oil are provided on the upper end of the oil guiding core 220 located inside the bearing grooves 230. Several sets of inner oil guiding holes 240 are evenly attached to the inner side of the bearing bodies 210. A set of main shells 140 for sealing and covering the inside of the bearing grooves 230 is provided on the outer side of the two sets of bearing grooves 230.

[0024] The main shell 140 has a left sealing plate 110 on the left side for sealing the left end of the main shell 140, and a right sealing plate 180 on the right side for sealing the right end of the main shell 140.

[0025] The left sealing plate 110 and the right sealing plate 180 have the same specifications. A set of left positioning shells 120 is provided on the outer left side of the main housing 140 to maintain the position of the left sealing plate 110. A set of right positioning shells 160 is provided on the outer right side of the main housing 140 to maintain the position of the right sealing plate 180. In actual use, before operation, the alignment of the inner diameter changing section of the oil guide core 220 with the bearing groove 230 needs to be checked. The two sets of bearing bodies 210 are then installed into the left and right bearing grooves 230 respectively, ensuring that the inner ring of the bearing body 210 is tightly fitted with the inner oil guide hole 240. The left positioning shell 120 and the right positioning shell 160 are fixed to both ends of the main housing 140 with bolts, so that the left sealing plate 110 and the right sealing plate 180 press against the inner sealing strip 190 to form an axial seal. The power connector 100 is connected to the external oil pump, and lubricating oil flows through the oil guide core 220. After the buffering of the middle expansion zone, the oil evenly seeps out from the inner oil guide holes 240 on both sides to the bearing raceway. During the lubrication process, observe the oil pressure indication at the outer connecting lead 200. Stop the oil supply when the oil fills the cavity of the inner core 220. Use the positioning insert 250 to ensure that the bearing body 210 and the oil guide head 170 rotate concentrically. When disassembling, first release the oil pressure, then remove the fixing bolts of the left and right positioning shells 160 in sequence. After pulling out the inner core 220, the lubricated bearing body 210 can be taken out. During maintenance, it is necessary to focus on checking the wear of the mating surface between the inner sealing strip 190 and the bearing groove 230. If the oil guide hole is found to be blocked, it needs to be cleaned by reverse blowing with high pressure gas. The whole operation should be completed when the equipment is stopped. The quick plug-in and plug-out design of the oil injection head 130 and the oil guide head 170 can realize the modular replacement of the lubrication system.

[0026] The left sealing plate 110 and the right sealing plate 180 are respectively connected and fixed to the left positioning shell 120 and the right positioning shell 160 by bolts. The lower end of the main shell 140 is provided with two sets of support seats 150 for supporting the lower end of the main shell 140.

[0027] The support base 150 is fixed to the main housing 140 by bolts. The upper end of the left positioning housing 120 is provided with a set of oil injection heads 130 for introducing external lubricating oil, and the upper end of the right positioning housing 160 is provided with a set of oil guide heads 170 for discharging excess lubricating oil inside the bearing groove 230.

[0028] The oil injection head 130 penetrates the interior of the left positioning housing 120 and is interconnected with the interior of the left bearing groove 230. The oil guide head 170 penetrates the interior of the positioning housing and is interconnected with the interior of the right bearing groove 230.

[0029] Please see Figures 1-3 As a second embodiment of this utility model: Based on the description in the above embodiments, further, an inner sealing strip 190 for maintaining the left side seal of the left bearing groove 230 is provided at the connection between the middle position of the left sealing plate 110 and the power connector 100, and an inner sealing strip 190 for maintaining the right side seal of the right bearing groove 230 is provided at the connection between the middle position of the right sealing plate 180 and the outer connecting lead 200. The two sets of inner sealing strips 190 are respectively sealed and fitted with the inner side of the left sealing plate 110 and the inner side of the right sealing plate 180, and are fixed by bolt connection. First, the main shell 140 is fixed on the working plane by the support seat 150 to ensure that the two sets of bearing bodies 210 are respectively installed into the left and right bearing grooves 230 and concentrically positioned with the oil guide inner core 220. The left positioning shell 120 and the right positioning shell 160 are fastened to the main shell by bolts. At both ends of the housing 140, the left sealing plate 110 and the right sealing plate 180 press the inner sealing strip 190 to form an axial seal. After the oil injection head 130 is connected to the external oil pump, the oil supply is started. The lubricating oil is buffered by the expansion zone in the middle section of the oil guide core 220 and seeps evenly from the inner oil guide hole 240 to the bearing raceway. During the lubrication process, observe the oil output status of the oil guide head 170. When the oil flows continuously, stop the oil injection. When disassembling, first release the oil pressure, loosen the positioning housing bolts, and then remove the left and right sealing plates 180 in sequence. Check the wear of the mating surface between the inner sealing strip 190 and the bearing groove 230. During maintenance, the residual oil stains in the inner oil guide hole 240 need to be cleaned. If the sealing strip is found to be aged, the left and right side components need to be replaced at the same time. The whole operation must be completed when the equipment is stationary. The preload of the bolts of the support seat 150 should be checked regularly to prevent the main housing 140 from shifting.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearing rolling chamber lubrication device, comprising: The power connector (100) and the positioning insert (250) are characterized in that: the power connector (100) is provided with a set of oil guide cores (220) on the right side for supplying oil to the internal bearing body (210), and the oil guide cores (220) are hollow inside; The inner diameter of the cross-section at the middle position of the oil guide core (220) is larger than the length of the inner diameter of the cross-section on the left and right sides. The outer sides of the left and right ends of the oil guide core (220) are respectively provided with a set of bearing grooves (230) for placing bearing bodies (210). Each set of bearing grooves (230) is provided with a set of bearing bodies (210) to be lubricated. The upper end of the oil guide core (220) located inside the bearing grooves (230) is provided with several sets of inner oil guide holes (240) for the lubricating oil of the bearing to seep out. The several sets of inner oil guide holes (240) are evenly attached to the inner side of the bearing body (210). A set of main shells (140) is provided on the outer side of the two sets of bearing grooves (230) for sealing and covering the inside of the bearing grooves (230).

2. The bearing rolling chamber lubrication device according to claim 1, characterized in that: The left side of the main shell (140) is provided with a left sealing plate (110) for sealing the left end of the main shell (140), and the right side of the main shell (140) is provided with a right sealing plate (180) for sealing the right end of the main shell (140).

3. The bearing rolling chamber lubrication device according to claim 2, characterized in that: The left sealing plate (110) and the right sealing plate (180) have the same specifications. The left side of the main shell (140) is provided with a set of left positioning shells (120) for maintaining the position of the left sealing plate (110). The right side of the main shell (140) is provided with a set of right positioning shells (160) for maintaining the position of the right sealing plate (180).

4. The bearing rolling chamber lubrication device according to claim 3, characterized in that: The left sealing plate (110) and the right sealing plate (180) are respectively connected and fixed to the left positioning shell (120) and the right positioning shell (160) by bolts. The lower end of the main shell (140) is provided with two sets of support seats (150) for supporting the lower end of the main shell (140).

5. The bearing rolling chamber lubrication device according to claim 4, characterized in that: The support base (150) is fixed to the main shell (140) by bolts. The upper end of the left positioning shell (120) is provided with a set of oil injection heads (130) for introducing external lubricating oil. The upper end of the right positioning shell (160) is provided with a set of oil guide heads (170) for discharging excess lubricating oil inside the bearing groove (230).

6. The bearing rolling chamber lubrication device according to claim 5, characterized in that: The oil injection head (130) penetrates the interior of the left positioning shell (120) and is interconnected with the interior of the left bearing groove (230). The oil guide head (170) penetrates the interior of the positioning shell and is interconnected with the interior of the right bearing groove (230).

7. The bearing rolling chamber lubrication device according to claim 3, characterized in that: The left sealing plate (110) is provided with an inner sealing strip (190) at the connection between the middle position of the left sealing plate (110) and the power connector (100) to maintain the seal on the left side of the left bearing groove (230). The right sealing plate (180) is provided with an inner sealing strip (190) at the connection between the middle position of the right sealing plate (180) and the outer connecting lead (200) to maintain the seal on the right side of the right bearing groove (230). The two sets of inner sealing strips (190) are respectively sealed and fitted with the inner side of the left sealing plate (110) and the inner side of the right sealing plate (180), and are fixed by bolt connection.

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