Oil storage protection device for roller chain coupling

Abstract

The application discloses a roller chain coupling oil storage protection device and belongs to the technical field of coupling protection. The device comprises two protective cover shells, which are sleeved on the outside of a coupling body and are detachably connected between the two protective cover shells. An inner concave arc groove is arranged on the inner side wall of the protective cover shell, and the cross section of the inner concave arc groove is trapezoidal. A positioning component and a lubricating component are arranged on the protective cover shell, and the positioning component is used for pre-positioning and fixing the two protective cover shells. The trapezoidal cross section of the inner concave arc groove can receive the lubricating oil thrown out by centrifugal force, guide the oil to gather and store, has good oil storage effect, reduces the oil supplement frequency and maintenance cost, and the positioning component has two-stage functions of pre-positioning and locking. In the pre-positioning state, the two protective cover shells can rotate around the coupling body in the circumferential direction as a whole, the lubricating component is driven to uniformly brush oil and lubricate the whole roller chain, the protective cover shells do not need to be disassembled, the process is greatly simplified, and the problems of oil stain dripping and low efficiency are avoided.

Description

Technical Field

[0001] This invention relates to the field of coupling protection technology, and more specifically, to an oil reservoir protection device for roller chain couplings. Background Technology

[0002] Roller chain couplings are commonly used transmission components in industrial transmission systems. They rely on the meshing of the roller chain with the sprockets on both sides to achieve synchronous transmission of two drive shafts. They are widely used in heavy-duty equipment such as textile baling machines. For example, the power transmission between the motor and the oil pump of a combed cotton baling machine is achieved through a steel roller chain coupling.

[0003] Most roller chain couplings lack external protection. During operation, the lubricating oil applied to the roller chain is easily thrown out by centrifugal force, resulting in severe dry friction between the chain and sprocket, rapid wear, and short service life.

[0004] Although some existing roller chain couplings have been fitted with simple protective covers, these only provide basic dust and contact protection. The lubricating oil inside the cover is relatively dispersed, resulting in poor oil storage. Furthermore, the cover is cumbersome to install and remove, which is time-consuming and laborious. Each time oil is replenished, the entire cover must be disassembled, making the oil replenishment operation inconvenient and prone to leaking onto the ground. This leads to low maintenance efficiency and affects the continuous and stable operation of the equipment.

[0005] Therefore, it is necessary to provide an oil reservoir protection device for roller chain couplings to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide an oil reservoir protection device for roller chain couplings to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A roller chain coupling oil reservoir protection device is installed outside the coupling body, which includes a roller chain and drive shafts on both sides, comprising: Two protective covers are fitted onto the outside of the coupling body, and the two protective covers are detachably connected. A concave arc groove is formed on the inner side wall of the protective cover and corresponds to the position of the roller chain. The cross-section of the concave arc groove is trapezoidal. Both the positioning component and the lubrication component are provided on the protective cover. The positioning component is used to pre-position and fix the two protective covers. After the two protective covers are pre-positioned between each other by the positioning component, the lubrication component lubricates the roller chain.

[0008] Furthermore, the inner wall of the concave arc groove is provided with multiple oil baffles.

[0009] Furthermore, the positioning component includes: The first positioning plate and the second positioning plate are respectively disposed at both ends of the outer wall of the protective cover. The first positioning plate is provided with an insertion hole, and the second positioning plate is provided with a stud. A limiting component is provided on the stud to connect the first positioning plate and the second positioning plate.

[0010] Furthermore, the limiting member includes a sleeve threadedly connected to the stud, and the outer wall of the sleeve is provided with a plurality of retractable limiting blocks, the side of the limiting block opposite to the second positioning plate being set as an inclined surface.

[0011] Furthermore, the sleeve has an inner cavity that is slidably connected to the limiting block, and the bottom wall of the inner cavity is provided with an elastic element that is connected to the limiting block.

[0012] Furthermore, the lubrication component includes: The oil injection rod is slidably inserted into the outer wall of the protective cover. One end of the rod extends into the concave arc groove and is equipped with a lubricating sponge brush. The oil injection rod has an oil injection hole that communicates with the lubricating sponge brush. A sealing cap is threaded to the entrance of the oil injection hole. The outer wall of the protective cover is provided with an adjustment component for adjusting the position of the lubricating sponge brush.

[0013] Furthermore, the adjustment assembly includes a screw rotatably disposed on the outer wall of the protective cover, and a connecting plate is threadedly connected to the screw, the connecting plate being connected to the oil injection rod.

[0014] Furthermore, a retaining ring is provided on the outer wall of the drive shaft, and an annular groove is formed on the retaining ring; The inner wall of the protective cover is provided with a sealing ring that abuts against the retaining ring, and a first sealing ring that matches the ring groove is provided on the sealing ring.

[0015] Furthermore, a sealing groove is provided on the outer wall of one end of the protective cover, and a second sealing ring adapted to the sealing groove is provided on the other end of the protective cover.

[0016] Furthermore, the outer wall of the drive shaft is provided with multiple fixing holes, and the outer wall of the protective cover is provided with threaded holes that penetrate both inside and outside, and the threaded holes are threadedly connected to fastening bolts.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention utilizes a trapezoidal cross-section design with an inwardly concave arc groove. The groove opening facing the roller chain can fully receive the lubricating oil ejected by centrifugal force, and the inclined groove wall guides the oil to converge and store. Combined with an oil baffle plate to prevent oil droplets from splashing and spreading, it significantly reduces the outward loss of lubricating oil, resulting in good oil storage effect. It also ensures that the oil is continuously retained around the roller chain for immersion lubrication, and guides some lubricating oil back to the roller chain area, effectively alleviating dry friction wear between the chain and sprocket, extending the service life of the coupling body, and reducing the frequency of oil replenishment and maintenance costs.

[0018] 2. The positioning component of this invention has two-stage functions: pre-positioning and locking. After the protective cover is engaged, pre-positioning can be achieved through the limiting component, eliminating the need for continuous manual stabilization before subsequent adjustments, thus improving installation efficiency. In the pre-positioned state, the two protective covers can rotate as a whole around the coupling body, driving the lubrication component to evenly apply oil to the entire circumference of the roller chain. After lubrication, the cover is then locked in place. For routine oil replenishment, simply operate the positioning component to loosen the two protective covers to the pre-positioned state for rotation and oil replenishment. There is no need to completely disassemble the protective covers, greatly simplifying the work process and avoiding the problems of oil dripping and low efficiency caused by disassembly.

[0019] 3. The present invention can flexibly adjust the fit between the lubricating sponge brush and the roller chain through the adjustment component. It can be adapted to roller chains with different pitches and sizes, and can also compensate for the long-term wear of the sponge brush. It can always ensure that the oil contact pressure is moderate, the lubrication is uniform and sufficient, and the oil replenishment operation is convenient. There is no need to disassemble the protective cover throughout the process, which reduces the difficulty of maintenance.

[0020] 4. The protective cover of this invention uses a sealing groove and a second sealing ring to seal the joints, eliminating gaps between the joint surfaces and preventing dust intrusion and oil leakage. At the drive shaft, a retaining ring, annular groove, sealing ring, and first sealing ring work together to form a radial seal at the shaft end, blocking the leakage channel between the cover and the drive shaft. This double-sealing structure not only prevents external dust and debris from entering and contaminating the roller chain, but also prevents lubricating oil leakage from contaminating the equipment and the surrounding environment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the protective device and the coupling body of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view of point B in the middle; Figure 4 This is a schematic diagram of the explosion structure of the protective device of the present invention; Figure 5 for Figure 4 Enlarged view of point C in the middle; Figure 6This is a schematic diagram of the structure of the coupling body and one of the protective covers of the present invention; Figure 7 This is a three-dimensional structural diagram of the protective cover of the present invention; Figure 8 This is a front cross-sectional view of the two protective covers of the present invention; Figure 9 This is a schematic diagram of the structure of the limiting component of the present invention; Figure 10 This is a cross-sectional view of the sleeve of the present invention.

[0022] Explanation of the labels in the diagram: 1. Coupling body; 101. Roller chain; 102. Drive shaft; 2. Protective cover; 3. Inner concave arc groove; 4. Positioning components; 401. First positioning plate; 402. Second positioning plate; 403. Insertion hole; 404. Stud; 405. Limiting component; 4051. Sleeve; 4052. Limiting block; 5. Lubrication components; 501. Oil injection rod; 502. Lubricating sponge brush; 503. Oil injection hole; 504. Sealing cap; 505. Adjustment component; 5051. Screw; 5052. Connecting plate; 6. Oil baffle plate; 7. Inner cavity; 8. Elastic component; 9. Retaining ring; 10. Ring groove; 11. Sealing ring; 12. First sealing ring; 13. Sealing groove; 14. Second sealing ring; 15. Fixing hole; 16. Threaded hole; 17. Fastening bolt; 18. Hexagonal rotating block. Detailed Implementation

[0023] 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 embodiments of the present invention, and not all embodiments. Based on the 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.

[0024] Please see Figures 1-10 A roller chain coupling oil reservoir protection device is installed on the outside of the coupling body 1. The coupling body 1 includes a roller chain 101 and drive shafts 102 on both sides, comprising: Two protective covers 2 are fitted on the outside of the coupling body 1, and the two protective covers 2 are detachably connected. The two protective covers 2 are semi-cylindrical structures, and one of the protective covers 2 forms a complete closed cavity after rotating 180 degrees around the axis of the drive shaft 102. The concave arc groove 3 is formed on the inner side wall of the protective cover 2 and corresponds to the position of the roller chain 101. It is arranged around the outer side of the roller chain 101. The cross section of the concave arc groove 3 is trapezoidal. The positioning component 4 and the lubrication component 5 are both provided on the protective cover 2. The positioning component 4 is used to pre-position and fix the two protective covers 2. After the positioning component 4 pre-positions the two protective covers 2, the lubrication component 5 lubricates the roller chain 101, that is, it replenishes the oil and lubricates the internal roller chain 101 without disassembling the cover.

[0025] When in use, first fasten the two protective covers 2 radially from both sides of the coupling body 1, and fit them together on the outside of the roller chain 101 and the two drive shafts 102 on both sides, so that the inner concave arc groove 3 of the protective cover 2 is aligned with the circumferential position of the roller chain 101, which can block external dust and debris from entering and prevent the chain and sprocket from being contaminated and worn. The two protective covers 2 are pre-positioned by the positioning component 4. At this time, the two protective covers 2 will not separate radially, but are not completely locked, and can rotate circumferentially around the axis of the coupling body 1 as a whole. Then, the lubrication component 5 on the protective cover 2 is operated to add lubricating oil to the roller chain 101. The protective cover 2 is rotated circumferentially at the same time, driving the lubrication component 5 to complete the full circumferential lubrication of the roller chain 101. After lubrication, the two protective covers 2 are completely locked and fixed by the positioning component 4. There is no need to completely disassemble the protective cover 2, which greatly improves the efficiency of oil replenishment and maintenance, ensures the continuous and stable operation of the production equipment, and avoids lubricating oil dripping and polluting the on-site environment.

[0026] During routine oil replenishment, simply operate the positioning component 4 to loosen the two protective covers 2 to the predetermined position before rotating for oil replenishment. There is no need to completely disassemble the protective covers 2, which greatly simplifies the oil replenishment process and avoids the problems of oil dripping and low efficiency caused by disassembling the covers.

[0027] The concave arc groove 3 with a trapezoidal cross section can receive and store the lubricating oil ejected by centrifugation. The inclined groove wall guides the oil to converge and be stored, reducing the oil from spreading outward and losing. It can also guide the lubricating oil located at a high position back to the roller chain 101 area, continuously maintaining the continuous lubrication of the roller chain 101.

[0028] Preferably, the inner wall of the concave arc groove 3 is provided with multiple oil baffles 6.

[0029] During operation, the roller chain 101 drives the lubricating oil to rotate at high speed. After being thrown out by centrifugal force, the oil first impacts the groove wall of the concave arc groove 3, and then is blocked and diverted layer by layer by the oil baffles 6. This not only prevents the lubricating oil from accumulating in the bottom area of ​​the concave arc groove 3 when the machine stops, allowing the lubricating oil to be stored in sections and enhancing the oil storage capacity of the concave arc groove 3, but also causes the lubricating oil to change its flow direction and fall down along the groove wall due to the blocking effect of the oil baffles 6. Some of the oil can flow back to the meshing area of ​​the roller chain 101 to continuously participate in the lubrication of the chain and sprocket, reduce the dry friction wear of the roller chain 101, and extend the overall service life of the coupling body 1.

[0030] Preferably, the positioning component 4 includes: The first positioning plate 401 and the second positioning plate 402 are respectively disposed at both ends of the outer wall of the protective cover 2. The first positioning plate 401 is provided with an insertion hole 403, and the second positioning plate 402 is provided with a stud 404. The limiting member 405 is provided on the stud 404 and is used to connect the first positioning plate 401 and the second positioning plate 402.

[0031] When installing two protective covers 2, align the studs 404 on the second positioning plate 402 of one protective cover 2 with the insertion holes 403 on the first positioning plate 401 of the other protective cover 2. Then, push the two protective covers 2 radially together so that the studs 404 are inserted into the insertion holes 403. The pre-positioning between the first positioning plate 401 and the second positioning plate 402 can be quickly achieved through the limiting member 405 on the studs 404. At this time, the two protective covers 2 can be rotated to facilitate oil replenishment. After oil replenishment, the two protective covers 2 can be locked and fixed by the limiting member 405.

[0032] The first positioning plate 401, the second positioning plate 402, the studs 404, and the insertion holes 403 are connected and engaged to quickly align the two covers during fastening, preventing misalignment and displacement. With the help of the limiting component 405, the cover can be pre-positioned and fixed quickly. The disassembly and assembly are simple and replace the traditional method of fixing with multiple bolts one by one. No complicated alignment or tool assistance is required, which improves the efficiency of installation and disassembly of the protective cover and reduces the difficulty of operation.

[0033] Preferably, the limiting member 405 includes a sleeve 4051 threadedly connected to the stud 404. The outer wall of the sleeve 4051 is provided with a plurality of retractable limiting blocks 4052, and the side of the limiting block 4052 facing away from the second positioning plate 402 is set as an inclined surface.

[0034] Specifically, during pre-positioning, the sleeve 4051 is first threaded onto the stud 404. As the limiting member 405 is inserted into the insertion hole 403 along with the stud 404, the inclined surface of the limiting block 4052 is squeezed inward by the edge of the insertion hole 403, allowing the sleeve 4051 to pass smoothly through the insertion hole 403. After the limiting block 4052 has completely passed through the insertion hole 403, it automatically pops outward, and its end face abuts against the outside of the first positioning plate 401, thus completing the pre-positioning. This achieves automatic locking and pre-positioning during the insertion process, preventing the two protective covers 2 from separating without manual alignment, and allowing a single person to complete the installation operation.

[0035] When locking is required, rotate the sleeve 4051 to move it along the stud 404 toward the second positioning plate 402, which will cause the limit block 4052 to press against the first positioning plate 401, thus completing the locking.

[0036] The locking force can be precisely adjusted by the threaded engagement of sleeve 4051 and stud 404, taking into account both the convenience of pre-positioning and the reliability of locking. The two-stage fixing mode is suitable for both oil replenishment and operation conditions.

[0037] In addition, one end of the socket 4051 is provided with a hexagonal swivel block 18, which is compatible with a standard wrench, making it easy to rotate the socket 4051 with tools such as wrenches.

[0038] Preferably, the sleeve 4051 has an inner cavity 7 that is slidably connected to the limiting block 4052. The bottom wall of the inner cavity 7 is provided with an elastic element 8 that is connected to the limiting block 4052. The elastic element 8 can be a compression spring, which provides an outward elastic force for the limiting block 4052.

[0039] With this design, when the limiting block 4052 is pressed by the insertion hole 403, the limiting block 4052 slides inward along the inner cavity 7 of the sleeve 4051 and compresses the elastic element 8 to generate elastic force; when the limiting block 4052 has completely passed through the insertion hole 403, the limiting block 4052 is no longer pressed, the elastic element 8 releases its elastic force, and pushes the limiting block 4052 to slide outward along the inner cavity 7 to reset, popping out and engaging to achieve pre-positioning; When disassembling, press the limiting block 4052 to retract it into the inner cavity 7, and then the sleeve 4051 can be pulled out from the insertion hole 403.

[0040] This flexible telescopic structure makes disassembly and assembly smoother. It automatically retracts when plugged in and automatically pops out when in place, providing a clear operating feel and improving the convenience of disassembly and assembly as well as the structural reliability.

[0041] Preferably, the lubrication component 5 includes: The oil injection rod 501 is slidably inserted into the outer wall of the protective cover 2. One end of the rod extends into the concave arc groove 3 and is equipped with a lubricating sponge brush 502. The oil injection rod 501 has an oil injection hole 503 that communicates with the lubricating sponge brush 502. A sealing cap 504 is threadedly connected to the inlet of the oil injection hole 503. The outer wall of the protective cover 2 is provided with an adjustment component 505 for adjusting the position of the lubricating sponge brush 502.

[0042] Specifically, during lubrication, first unscrew the cap 504 and add lubricating oil through the oil injection hole 503 inside the oil injection rod 501. The lubricating oil penetrates into the lubricating sponge brush 502 along the oil injection hole 503. Then, drive the oil injection rod 501 to move radially through the adjustment component 505 to adjust the contact distance between the lubricating sponge brush 502 and the roller chain 101, so that the lubricating sponge brush 502 contacts the roller chain 101. Then rotate the protective cover 2 circumferentially to drive the lubricating sponge brush 502 to brush along the roller chain 101 circumferentially to complete the full circumferential lubrication. After the oil replenishment is completed, screw back the sealing cap 504 to seal the oil injection hole 503.

[0043] Through the oil injection rod 501 with the built-in oil injection hole 503, oil can be directly added to the inside without removing the protective cover 2, avoiding oil spillage and cumbersome operation caused by removing the cover; the lubricating sponge brush 502 can evenly apply lubricating oil to ensure sufficient lubrication of all parts of the roller chain 101, avoid concentrated dripping of oil, and reduce oil waste; the adjustment component 505 can flexibly adjust the oil brushing position to adapt to roller chains 101 of different specifications and conditions, and at the same time compensate for the wear of the lubricating sponge brush 502 to maintain a stable oil brushing effect.

[0044] In this embodiment, the adjustment component 505 includes a screw 5051 rotatably disposed on the outer wall of the protective cover 2, and a connecting plate 5052 threadedly connected to the screw 5051, the connecting plate 5052 being connected to the oil injection rod 501.

[0045] Specifically, when adjusting the lubrication position, first rotate the screw 5051, and drive the connecting plate 5052 to move along the axial direction of the screw 5051 through the threaded transmission. Finally, the connecting plate 5052 drives the oil injection rod 501 to slide radially in sync, so as to adjust the position of the lubricating sponge brush 502 closer to or further away from the roller chain 101.

[0046] Preferably, a retaining ring 9 is provided on the outer wall of the drive shaft 102, and an annular groove 10 is provided on the retaining ring 9; The inner wall of the protective cover 2 is provided with a sealing ring 11 that abuts against the retaining ring 9, and a first sealing ring 12 that matches the ring groove 10 is provided on the sealing ring 11.

[0047] With this design, when installing the protective cover 2, first align the sealing ring 11 on the inner side of the protective cover 2 with the retaining ring 9 on the drive shaft 102; then fasten the protective cover 2 so that the end face of the sealing ring 11 abuts against the end face of the retaining ring 9, and at the same time, the first sealing ring 12 on the sealing ring 11 is embedded in the annular groove 10 of the retaining ring 9 to form a shaft end sealing structure.

[0048] The first end face seal is formed by the fit between the retaining ring 9 and the sealing ring 11, and the second embedded seal is formed by the fit between the first sealing ring 12 and the ring groove 10. The double seal greatly improves the sealing performance of the end of the protective cover 2; effectively prevents internal lubricating oil from leaking out from the gap between the drive shaft 102 and the protective cover 2, and at the same time blocks external dust and debris from entering the interior of the protective cover 2 and contaminating the roller chain 101.

[0049] Preferably, a sealing groove 13 is provided on the outer wall of one end of the protective cover 2, and a second sealing ring 14 adapted to the sealing groove 13 is provided on the other end of the protective cover 2.

[0050] With this design, when the two protective covers 2 are fastened together, the second sealing ring 14 at the end of one of the protective covers 2 is first aligned with the sealing groove 13 at the end of the other protective cover 2; then the two protective covers 2 are pushed to fit together, so that the second sealing ring 14 is embedded in the sealing groove 13. As the positioning component 4 is locked, the second sealing ring 14 is squeezed and deformed to fill the gap of the sealing groove 13, forming a joint surface seal.

[0051] By fitting the sealing groove 13 with the second sealing ring 14, the splicing position of the two protective covers 2 can be accurately positioned to avoid misalignment. At the same time, a circumferential seal is formed at the joint of the two protective covers 2, sealing the splicing gap, preventing external dust from entering the cavity from the splicing seam, and also preventing internal lubricating oil from leaking from the splicing point, further improving the overall sealing performance of the cover.

[0052] In this embodiment, the outer wall of the drive shaft 102 is provided with a plurality of fixing holes 15, and the outer wall of the protective cover 2 is provided with a threaded hole 16 that passes through both the inside and outside, and the threaded hole 16 is threadedly connected to a fastening bolt 17.

[0053] With this design, after the protective cover 2 is locked and its circumferential position is adjusted, the fastening bolt 17 is first aligned with the threaded hole 16 on the protective cover 2, and then the fastening bolt 17 is screwed in so that its end passes through the threaded hole 16 and is screwed into the corresponding fixing hole 15 on the drive shaft 102, thus completing the relative fixation of the protective cover 2 and the drive shaft 102.

[0054] By engaging the fastening bolts 17 with the fixing holes 15, the protective cover 2 and the drive shaft 102 can be circumferentially fixed, effectively preventing the protective cover 2 from rotating circumferentially or moving axially during equipment operation, thus improving the overall installation stability.

[0055] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

[0056] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0057] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

Claims

1. A roller chain coupling oil reservoir protection device, installed on the outside of the coupling body (1), the coupling body (1) comprising a roller chain (101) and drive shafts (102) on both sides, characterized in that, include: Two protective covers (2) are fitted onto the outside of the coupling body (1), and the two protective covers (2) are detachably connected. The concave arc groove (3) is formed on the inner side wall of the protective cover (2) and corresponds to the position of the roller chain (101). The cross section of the concave arc groove (3) is trapezoidal. The positioning component (4) and the lubrication component (5) are both provided on the protective cover (2). The positioning component (4) is used to pre-position and fix the two protective covers (2). After the two protective covers (2) are pre-positioned between each other by the positioning component (4), the lubrication component (5) lubricates the roller chain (101).

2. The oil reservoir protection device for roller chain couplings according to claim 1, characterized in that, The inner wall of the concave arc groove (3) is provided with multiple oil baffles (6).

3. The oil reservoir protection device for roller chain couplings according to claim 1, characterized in that, The positioning component (4) includes: The first positioning plate (401) and the second positioning plate (402) are respectively disposed at both ends of the outer wall of the protective cover (2). The first positioning plate (401) is provided with an insertion hole (403), and the second positioning plate (402) is provided with a stud (404). A limiting member (405) is provided on the stud (404) for connecting the first positioning plate (401) and the second positioning plate (402).

4. The oil reservoir protection device for roller chain couplings according to claim 3, characterized in that, The limiting member (405) includes a sleeve (4051) threadedly connected to the stud (404). The outer wall of the sleeve (4051) is provided with a plurality of retractable limiting blocks (4052). The side of the limiting block (4052) facing away from the second positioning plate (402) is set as an inclined surface.

5. The oil reservoir protection device for roller chain couplings according to claim 4, characterized in that, The sleeve (4051) has an inner cavity (7) that is slidably connected to the limiting block (4052), and the bottom wall of the inner cavity (7) is provided with an elastic element (8) that is connected to the limiting block (4052).

6. The oil reservoir protection device for roller chain couplings according to claim 1, characterized in that, The lubrication component (5) includes: The oil injection rod (501) is slidably inserted into the outer wall of the protective cover (2), with one end extending into the concave arc groove (3) and equipped with a lubricating sponge brush (502). The oil injection rod (501) has an oil injection hole (503) communicating with the lubricating sponge brush (502) inside, and a sealing cap (504) is threaded at the entrance of the oil injection hole (503). The outer wall of the protective cover (2) is provided with an adjustment component (505) for adjusting the position of the lubricating sponge brush (502).

7. The oil reservoir protection device for roller chain couplings according to claim 6, characterized in that, The adjustment assembly (505) includes a screw (5051) rotatably disposed on the outer wall of the protective cover (2), and a connecting plate (5052) is threadedly connected to the screw (5051), and the connecting plate (5052) is connected to the oil injection rod (501).

8. The oil reservoir protection device for roller chain couplings according to claim 1, characterized in that, The outer wall of the drive shaft (102) is provided with a retaining ring (9), and the retaining ring (9) is provided with an annular groove (10). The inner wall of the protective cover (2) is provided with a sealing ring (11) that abuts against the retaining ring (9), and a first sealing ring (12) that is adapted to the ring groove (10) is provided on the sealing ring (11).

9. The oil reservoir protection device for roller chain couplings according to claim 1, characterized in that, The outer wall of one end of the protective cover (2) is provided with a sealing groove (13), and the other end of the protective cover (2) is provided with a second sealing ring (14) that is compatible with the sealing groove (13).

10. The oil reservoir protection device for roller chain couplings according to claim 1, characterized in that, The outer wall of the drive shaft (102) is provided with multiple fixing holes (15), and the outer wall of the protective cover (2) is provided with threaded holes (16) that pass through both inside and outside. The threaded holes (16) are threadedly connected to fastening bolts (17).

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