Rotating shaft and rotating shaft lubricating device
By setting up oil return channels and circulation circuits in the rotary shaft, the problem of debris and lubricating oil overflow during lubrication is solved, the cleaning of the lubricating cavity and the reuse of lubricating oil are realized, and the service life of shaft parts and equipment are improved. Aesthetic.
Patent Information
- Application Number
- CN202421073828.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-16
AI Technical Summary
In the prior art, debris generated by shaft parts during lubrication will remain in the lubricating layer with lubricating oil, causing wear, and excessive lubricating oil will overflow or adhere to the equipment surface, affecting aesthetics and efficiency.
A rotating shaft is designed, including a shaft body, a sleeve, an oil inlet channel and an oil return channel. The lubricated lubricating oil and debris are discharged through the oil return channel to avoid retention, and the repetition of lubricating oil is achieved through the circulation circuit and the filter. Utilization and impurity filtration.
It effectively avoids debris wear and lubricating oil spill in the lubricating cavity, maintains the cleanliness and lubricating effect of the rotating shaft, and realizes the reuse of lubricating oil and the removal of impurities.
Smart Images
Figure CN222163196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical equipment, in particular to a rotating shaft and a rotating shaft lubricating device. Background Art
[0002] A shaft is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque or bending moment. The parts that perform rotating motion in mechanical equipment are installed on the shaft. In mechanical equipment, shaft parts need a lubrication system to continuously provide lubricating oil to ensure that the shaft is fully lubricated during daily work.
[0003] In the shaft parts of the prior art, lubrication pipelines for oil inlet are usually set on the shaft parts, and the lubrication system will regularly inject lubricating oil into the parts of the shaft parts that need lubrication. However, since the friction of the shaft parts will generate debris, the debris will remain in the lubricating layer with the lubricating oil, continuously wearing the shaft parts, and the excess lubricating oil can only be squeezed out, causing waste. At the same time, oil stains will adhere to the surface of the equipment, affecting the appearance. Utility Model Content
[0004] In view of this, the utility model provides a rotating shaft and a rotating shaft lubricating device to solve the problem in the prior art that debris will always remain in the lubricating layer along with the lubricating oil.
[0005] In the first aspect, the utility model provides a rotating shaft, including a shaft body, a shaft sleeve, an oil inlet channel and an oil return channel. The shaft body is cylindrical, the shaft sleeve is arranged on the outside of the shaft body, and a lubrication cavity is provided between the outer wall of the shaft body and the inner wall of the shaft sleeve. The oil inlet channel is arranged inside the shaft body and is connected with the lubrication cavity, and the oil return channel is arranged inside the shaft body and is connected with the lubrication cavity.
[0006] Beneficial effects: The utility model provides an oil return channel in the shaft body. When in use, the lubricating oil enters the lubrication cavity from the oil inlet channel to lubricate the shaft body and the sleeve. The lubricating oil after lubrication can be discharged from the lubrication cavity through the oil return channel, and the debris generated by the friction between the sleeves can be discharged together with the lubricating oil, thereby avoiding continuous wear of the shaft body and the sleeve by the debris retained in the lubrication cavity. At the same time, excessive lubricating oil added to the lubrication cavity can also be discharged from the oil return channel and then collected, thereby avoiding excessive oil stains adhering to the surface of the equipment, thereby ensuring the cleanliness of the rotating shaft.
[0007] In an optional embodiment, a boss is provided on the inner wall of the sleeve, the boss abuts against the shaft body, and a lubrication cavity is formed between the boss and the inner wall of the sleeve.
[0008] Beneficial effect: The utility model forms a lubrication cavity between the inner wall of the sleeve and the outer wall of the shaft body by arranging a boss on the inner wall of the sleeve, which is convenient for lubricating the shaft body and the sleeve, thereby reducing wear.
[0009] In an optional embodiment, the boss is located in the middle of the inner wall of the sleeve, and the lubrication cavity is located on both sides of the boss.
[0010] Beneficial effects: The utility model arranges the boss in the middle of the inner wall of the sleeve, so that both sides of the boss and the shaft body form a lubrication cavity, which increases the storage capacity of the lubricating oil, thereby improving the lubrication effect and facilitating the timely discharge of the lubricating oil after lubrication.
[0011] In an optional embodiment, a plurality of oil inlet holes and a plurality of oil return holes are provided on the side wall of the shaft body, the oil inlet holes and the oil return holes are located at positions corresponding to the lubrication cavity, the oil inlet holes are connected to the oil inlet channel, and the oil return holes are connected to the oil return channel.
[0012] Beneficial effect: The utility model can make the lubricating oil more evenly distributed in the lubricating cavity by arranging multiple oil inlet holes and multiple oil return holes, and can accelerate the reflux and discharge of the lubricating oil after lubrication.
[0013] On the second aspect, the utility model also provides a rotating shaft lubrication device, including a base, the above-mentioned rotating shaft, an oil inlet pipeline and an oil return pipeline. The shaft body is rotatably installed on the base, the oil inlet pipeline is connected to the oil inlet channel, and the oil return pipeline is connected to the oil return channel. A circulation loop is formed between the oil inlet pipeline, the oil return pipeline and the shaft body.
[0014] Beneficial effect: The utility model forms a circulation loop between the oil inlet pipeline, the oil return pipeline and the shaft body, so that excess lubricating oil injected into the lubricating cavity and the lubricating oil after lubrication can be circulated back to the lubricating cavity again, thereby preventing the lubricating oil from overflowing and allowing the lubricating oil to be reused.
[0015] In an optional embodiment, a filter is provided in the oil return pipeline.
[0016] Beneficial effect: The utility model provides a filter in the oil return pipeline, so that the lubricating oil entering the oil return pipeline can be filtered out of impurities through the filter and then re-injected into the oil inlet pipeline, so as to avoid impurities wearing parts when the recycled old lubricating oil is re-injected for lubrication.
[0017] In an optional implementation, the shaft lubrication device further includes a connecting pipeline, which connects the oil inlet pipeline and the oil return pipeline.
[0018] In an optional implementation, the shaft lubrication device further includes a one-way valve, and the one-way valve is disposed in the connecting pipeline.
[0019] Beneficial effect: By setting a one-way valve, this embodiment can control the lubricating oil to flow back to the oil inlet pipeline after being filtered through the return oil pipeline, thereby preventing the lubricating oil from returning the filtered impurities to the lubrication cavity.
[0020] In an optional embodiment, an oil filling port and an oil unloading port are provided on the connecting pipeline. The oil filling port is located on the side of the one-way valve close to the oil inlet pipeline, and the oil unloading port is located on the side of the one-way valve close to the oil return pipeline.
[0021] Beneficial effects: The utility model can add lubricating oil to the rotating shaft lubrication device by arranging the oil filling port, and can discharge and replace the lubricating oil after being used for a certain period of time by arranging the oil discharge port.
[0022] In an optional embodiment, the shaft lubrication device further includes a pump body, which is disposed on the connecting pipeline and is suitable for driving the lubricating oil to circulate in the circulation loop.
[0023] Beneficial effect: The utility model can realize the circulation of lubricating oil in the circulation loop by arranging the pump body, thereby filtering and removing impurities in the lubricating oil, and preventing the impurities from wearing the shaft body and the shaft sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 A cross-sectional view of a rotating shaft lubrication device according to an embodiment of the utility model;
[0026] Figure 2 A cross-sectional view of a shaft body in a rotating shaft lubrication device according to an embodiment of the utility model;
[0027] Figure 3 The utility model is a cross-sectional view of a shaft sleeve in a rotating shaft lubrication device according to an embodiment of the utility model.
[0028] Description of reference numerals:
[0029] 1. Shaft body; 101. Oil inlet hole; 102. Oil return hole; 2. Bushing; 201. Boss; 3. Lubrication chamber; 4. Oil inlet channel; 5. Oil return channel; 6. Base; 7. Oil inlet pipeline; 8. Oil return pipeline; 9. Connecting pipeline; 10. Filter; 11. One-way valve. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0031] Combine the following Figures 1 to 3 , describing an embodiment of the utility model.
[0032] According to an embodiment of the present utility model, on the one hand, as Figures 1 to 3 As shown, a rotating shaft is provided, including a shaft body 1, a shaft sleeve 2, an oil inlet channel 4 and an oil return channel 5. The shaft body 1 is cylindrical, the shaft sleeve 2 is sleeved on the outside of the shaft body 1, and a lubrication cavity 3 is provided between the outer wall of the shaft body 1 and the inner wall of the shaft sleeve 2. The oil inlet channel 4 is arranged inside the shaft body 1 and is connected to the lubrication cavity 3. The oil return channel 5 is arranged inside the shaft body 1 and is connected to the lubrication cavity 3.
[0033] Specifically, in this embodiment, the shaft body 1 is not specifically limited. To conform to the actual situation, in this embodiment, the shaft body 1 is cylindrical, and the oil inlet channel 4 and the oil return channel 5 extend axially from the end of the shaft body 1 to the inside of the shaft body 1, and then extend radially to the outer wall of the shaft body 1.
[0034] In this embodiment, one oil inlet channel 4 and one oil return channel 5 are provided, the oil inlet channel 4 and the oil return channel 5 are arranged in parallel, and the ends of the oil inlet channel 4 and the oil return channel 5 connected to the lubrication chamber 3 are respectively provided on the opposite side of the outer wall of the shaft body 1. In other embodiments, other numbers of oil inlet channels 4 and oil return channels 5 may also be provided according to actual needs.
[0035] In this embodiment, the sleeve 2 is in the shape of a cylindrical tube, the inner diameter of the sleeve 2 matches the outer diameter of the shaft body 1, the sleeve 2 is sleeved on the outside of the shaft body 1, and a lubrication cavity 3 is provided between the sleeve 2 and the shaft body 1. The lubricating oil in the lubrication cavity 3 can enter the fitting gap between the shaft body 1 and the sleeve 2, thereby improving the lubrication of the shaft body 1 when it rotates in the sleeve 2 and reducing the wear of the shaft body 1 when it rotates in the sleeve 2.
[0036] The utility model sets an oil return channel 5 in the shaft body 1. When in use, the lubricating oil enters the lubricating cavity 3 from the oil inlet channel 4 to lubricate the shaft body 1 and the shaft sleeve 2. The lubricating oil after lubrication can be discharged from the lubricating cavity 3 through the oil return channel 5, and the debris generated by the friction between the shaft sleeves 2 and the shaft sleeves 2 can be discharged together with the lubricating oil, so as to avoid the debris retained in the lubricating cavity 3 from continuously wearing the shaft body 1 and the shaft sleeve 2. At the same time, the excessive lubricating oil added to the lubricating cavity 3 can also be discharged from the oil return channel 5 and then collected, so as to avoid excessive oil stains adhering to the surface of the equipment, thereby ensuring the cleanliness of the rotating shaft.
[0037] In one embodiment, Figure 1 and Figure 3 As shown, a boss 201 is provided on the inner wall of the sleeve 2 , the boss 201 abuts against the shaft body 1 , and a lubrication cavity 3 is formed between the boss 201 and the inner wall of the sleeve 2 .
[0038] Specifically, in this embodiment, the boss 201 protrudes from the inner wall of the sleeve 2 and abuts against the shaft body 1. There is a matching gap between the contact surfaces of the boss 201 and the shaft body 1. A lubrication cavity 3 is formed between the side of the boss 201 and the inner wall of the sleeve 2 and the shaft body 1.
[0039] The utility model forms a lubrication cavity 3 between the inner wall of the sleeve 2 and the outer wall of the shaft body 1 by arranging a boss 201 on the inner wall of the sleeve 2, so as to facilitate lubrication of the shaft body 1 and the sleeve 2 by lubricating oil, thereby reducing wear.
[0040] In one embodiment, Figure 1 and Figure 3 As shown, the boss 201 is located in the middle of the inner wall of the sleeve 2 , and the lubrication cavity 3 is located on both sides of the boss 201 .
[0041] Specifically, in this embodiment, the boss 201 is located at the middle of the inner wall of the sleeve 2, and the recessed positions on both sides of the sleeve 2 form lubrication chambers 3. The two lubrication chambers 3 can increase the distribution of lubricating oil and improve the lubrication effect.
[0042] The utility model sets the boss 201 in the middle of the inner wall of the sleeve 2, so that the two sides of the boss 201 and the shaft body 1 form a lubrication cavity 3, which increases the storage capacity of the lubricating oil, thereby improving the lubrication effect and facilitating the timely discharge of the lubricating oil after lubrication.
[0043] In one embodiment, Figure 1 and Figure 2 As shown, a plurality of oil inlet holes 101 and a plurality of oil return holes 102 are provided on the side wall of the shaft body 1. The oil inlet holes 101 and the oil return holes 102 are located at positions corresponding to the lubrication cavity 3. The oil inlet holes 101 are connected to the oil inlet channel 4, and the oil return holes 102 are connected to the oil return channel 5.
[0044] Specifically, in this embodiment, the oil inlet hole 101 and the oil return hole 102 are respectively arranged on the side wall of the shaft body 1 where the lubrication cavity 3 is located, so that lubrication oil can be injected into multiple lubrication cavities 3 at the same time, and lubrication oil in multiple lubrication cavities 3 can be discharged at the same time.
[0045] The utility model can make the lubricating oil more evenly distributed in the lubricating cavity 3 by arranging a plurality of oil inlet holes 101 and a plurality of oil return holes 102, and can accelerate the reflux and discharge of the lubricating oil after lubrication.
[0046] According to an embodiment of the present utility model, on the other hand, Figure 1As shown, a shaft lubrication device is also provided, including a base 6, the above-mentioned shaft, an oil inlet pipeline 7 and an oil return pipeline 8, the shaft body 1 is rotatably mounted on the base 6, the oil inlet pipeline 7 is connected to the oil inlet channel 4, the oil return pipeline 8 is connected to the oil return channel 5, and a circulation loop is formed between the oil inlet pipeline 7, the oil return pipeline 8 and the shaft body 1.
[0047] Specifically, in this embodiment, the shaft body 1 is rotatably mounted on the base 6 , the end of the shaft sleeve 2 abuts against the base 6 , and a lubrication cavity 3 is formed between the inner wall of the shaft sleeve 2 and the base 6 and the shaft body 1 .
[0048] In this embodiment, the oil inlet pipeline 7 is connected with the oil inlet channel 4 at the end of the shaft body 1, and is used to inject lubricating oil into the lubricating chamber 3. The oil return pipeline 8 is connected with the oil return channel 5 at the end of the shaft body 1, and is used to output the lubricating oil in the lubricating chamber 3. The circulation loop formed by the oil inlet pipeline 7, the oil return pipeline 8 and the shaft body 1 can make the lubricating oil circulate, thereby lubricating the shaft body 1 and the sleeve 2.
[0049] The utility model forms a circulation loop between the oil inlet pipeline 7, the oil return pipeline 8 and the shaft body 1, so that the excess lubricating oil injected into the lubricating cavity 3 and the lubricating oil after lubrication can be circulated back to the lubricating cavity 3 again, thereby preventing the lubricating oil from overflowing and allowing the lubricating oil to be reused.
[0050] In one embodiment, Figure 1 As shown, a filter screen 10 is arranged in the oil return pipeline 8 .
[0051] Specifically, in this embodiment, the filter screen 10 can be detachably installed in the oil return pipeline 8. After a certain period of use, the oil return pipeline 8 and the shaft body 1 can be separated, and the filter screen 10 can be taken out for cleaning, maintenance or replacement. In this embodiment, there is no specific limitation on the filter screen 10. The filter screen 10 can be a single-layer or multi-layer structure filter screen 10. In order to improve the filtering effect, the filter screen 10 can also be set in the oil inlet pipeline 7.
[0052] The utility model provides a filter screen 10 in the oil return pipeline 8, so that the lubricating oil entering the oil return pipeline 8 can be filtered through the filter screen 10 to remove impurities and then re-injected into the oil inlet pipeline 7, so as to prevent the impurities from wearing out the parts when the recycled old lubricating oil is re-injected into the lubrication.
[0053] In one embodiment, Figure 1 As shown, the shaft lubrication device also includes a connecting pipeline 9, which connects the oil inlet pipeline 7 and the oil return pipeline 8, and a circulation loop is formed between the oil inlet pipeline 7, the shaft body 1, the oil return pipeline 8 and the connecting pipeline 9.
[0054] In one embodiment, Figure 1 As shown, the shaft lubrication device further includes a one-way valve 11 , which is disposed in the connecting pipeline 9 .
[0055] Specifically, in this embodiment, the conducting direction of the one-way valve 11 is from the oil return pipeline 8 to the oil inlet pipeline 7, so as to prevent the lubricating oil from flowing in the reverse direction.
[0056] In this embodiment, by providing a one-way valve 11 , the lubricating oil can be controlled to flow back into the oil inlet pipeline 7 after being filtered through the oil return pipeline 8 , thereby preventing the impurities filtered out by the lubricating oil from flowing back into the lubricating cavity 3 .
[0057] In one embodiment, an oil filling port and an oil unloading port are provided on the connecting pipeline 9 . The oil filling port is located on the side of the one-way valve 11 close to the oil inlet pipeline 7 , and the oil unloading port is located on the side of the one-way valve 11 close to the oil return pipeline 8 .
[0058] The utility model can add lubricating oil to the rotating shaft lubricating device by arranging the oil filling port, and can discharge and replace the lubricating oil after being used for a certain period of time by arranging the oil discharge port.
[0059] In one embodiment, the shaft lubrication device further comprises a pump body, which is disposed on the connecting pipeline 9 and is suitable for driving the lubricating oil to circulate in the circulation loop.
[0060] The utility model can realize the circulation of lubricating oil in the circulation loop by arranging a pump body on the connecting pipeline 9 and arranging a controller to be connected with the pump body signal, thereby filtering and removing impurities in the lubricating oil to prevent the impurities from wearing the shaft body 1 and the sleeve 2.
[0061] When working, the pump body injects lubricating oil into the oil inlet pipeline 7, and the lubricating oil enters the oil inlet channel 4 in the shaft body 1 through the oil inlet pipeline 7, and then fills into the lubricating cavity 3 between the shaft body 1 and the sleeve 2. The lubricating oil is used to reduce the friction between the shaft body 1 and the sleeve 2. After a certain period of time, the pump body controlled by the controller replenishes a part of the lubricating oil into the oil inlet pipeline 7 again. At this time, the lubricating oil originally in the lubricating cavity 3 will be squeezed into the return oil channel 5 due to the pressure, and the metal debris and other impurities in the lubricating oil will be filtered out by the filter 10 of the return oil pipeline 8. The recovered lubricating oil can continue to flow back into the oil inlet pipeline 7 through the one-way valve 11, so as to realize the recovery and reuse of the lubricating oil.
[0062] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A rotating shaft, characterized in that: include: A shaft body (1), wherein the shaft body (1) is cylindrical; A shaft sleeve (2), wherein the shaft sleeve (2) is sleeved on the outside of the shaft body (1), and a lubrication cavity (3) is provided between the outer wall of the shaft body (1) and the inner wall of the shaft sleeve (2); An oil inlet passage (4), the oil inlet passage (4) being arranged inside the shaft body (1) and being connected to the lubrication chamber (3); An oil return passage (5), wherein the oil return passage (5) is arranged inside the shaft body (1) and is connected to the lubrication chamber (3).
2. The rotating shaft according to claim 1, characterized in that: The inner wall of the shaft sleeve (2) is provided with a boss (201), the boss (201) is in contact with the shaft body (1), and a lubrication cavity (3) is formed between the boss (201) and the inner wall of the shaft sleeve (2).
3. The rotating shaft according to claim 2, characterized in that: The boss (201) is located in the middle of the inner wall of the shaft sleeve (2), and the lubrication cavity (3) is located on both sides of the boss (201).
4. The rotating shaft according to any one of claims 1 to 3, characterized in that: A plurality of oil inlet holes (101) and a plurality of oil return holes (102) are provided on the side wall of the shaft body (1); the oil inlet holes (101) and the oil return holes (102) are located at positions corresponding to the lubrication cavity (3); the oil inlet holes (101) are connected to the oil inlet channel (4); and the oil return holes (102) are connected to the oil return channel (5).
5. A shaft lubrication device, characterized in that: include: Base (6); The rotating shaft according to any one of claims 1 to 4, wherein the shaft body (1) is rotatably mounted on the base (6); An oil inlet pipeline (7), the oil inlet pipeline (7) being connected to the oil inlet passage (4); An oil return pipeline (8), the oil return pipeline (8) is connected to the oil return channel (5), and a circulation loop is formed between the oil inlet pipeline (7), the oil return pipeline (8) and the shaft body (1).
6. The shaft lubrication device according to claim 5, characterized in that: A filter screen (10) is provided in the oil return pipeline (8).
7. The shaft lubrication device according to claim 5 or 6, characterized in that: Also includes: A connecting pipeline (9), wherein the connecting pipeline (9) connects the oil inlet pipeline (7) and the oil return pipeline (8).
8. The shaft lubrication device according to claim 7, characterized in that: Also includes: A one-way valve (11), wherein the one-way valve (11) is arranged in the connecting pipeline (9).
9. The shaft lubrication device according to claim 8, characterized in that: The connecting pipeline (9) is provided with an oil filling port and an oil discharge port, the oil filling port is located on the side of the one-way valve (11) close to the oil inlet pipeline (7), and the oil discharge port is located on the side of the one-way valve (11) close to the oil return pipeline (8).
10. The shaft lubrication device according to claim 8 or 9, characterized in that: Also includes: A pump body is arranged on the connecting pipeline (9) and is suitable for driving the lubricating oil to circulate in the circulation loop.