Impurity filtering and separating device for lubricating oil production
Through the design of the inner lining tube and spiral limiting channel, the automatic winding and replacement of the filter cloth can be realized, which solves the problem of frequent shutdown of the lubricating oil filter device to replace the filter bag, and improves the filtration efficiency and equipment operation stability.
Patent Information
- Application Number
- CN202521986760.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2035-09-16
AI Technical Summary
Existing lubricating oil filtration and separation devices require frequent shutdowns to replace filter bags, which is inconvenient to operate and affects filtration efficiency.
The design of inner liner, spiral limiting channel, filter cloth, lead-out assembly and winding assembly realizes automatic winding and replacement of filter cloth, reduces manual intervention and avoids filter bag clogging.
It improves the filtration efficiency of lubricating oil, reduces downtime, reduces labor intensity and cost, and improves the continuous operation capability of equipment.
Smart Images

Figure CN223474517U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the technical field of lubricating oil impurity separation equipment, specifically an impurity filtration and separation device used in lubricating oil production. Background Technology
[0002] Lubricating oil is a type of functional liquid or semi-solid lubricant used to reduce mechanical friction and protect machinery and processed parts. It is usually formulated with base oil and various additives. It can form an oil film on the contact surface of mechanical moving parts, reduce the coefficient of friction to reduce wear, and also has the functions of cooling (removing heat generated by friction), sealing (filling gaps to prevent media leakage), cleaning (dispersing and removing impurities) and rust prevention (isolating moisture and oxygen from corroding metals). It is widely used in various mechanical equipment such as engines, gearboxes, machine tools, and bearings, and is a key industrial auxiliary material to ensure the long-term stable operation of equipment and extend its service life.
[0003] In the production of lubricating oil, impurity filtration and separation devices are required. Currently available impurity filtration and separation equipment mainly includes an outer cylinder, a cover, a pressure gauge, and an internal core filtration structure. The filtration structure consists of a wire mesh cylinder and a high-precision filter bag. The wire mesh provides support and prevents the filter bag from deforming. The filter bag has a filtration precision of approximately one or two micrometers, effectively filtering out tiny impurities, contaminants, and wear particles from the lubricating oil, ensuring the cleanliness of the lubricating oil and extending its service life. Because the filter pores on the filter bag are small, clogging is common. To ensure filtration strength and prevent clogging, the filter bag needs to be cleaned or replaced. However, for this bag-type filtration method, replacement requires the operator to stop the machine, disassemble the quick-opening ring assembly on the outer cylinder one by one, remove the wire mesh cylinder, remove the clogged filter bag, and replace it with a new one, which is then placed back into the outer cylinder. Due to the height of the outer cylinder, this process is extremely inconvenient and time-consuming. Furthermore, the need to stop the machine for replacement also affects filtration efficiency. Utility Model Content
[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing solutions are too simplistic. Specifically, this utility model provides an impurity filtration and separation device for lubricating oil production, which solves the technical problem mentioned in the background that the current lubricating oil filtration and separation device, which uses a filter bag fitted onto a metal wire mesh cylinder, often requires machine shutdown to replace the filter bag, resulting in inconvenience in operation.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0006] An impurity filtration and separation device for lubricating oil production includes an outer cylinder, a liner, and a cover. The liner and the outer cylinder are detachably connected. The cover is located on the upper side of the liner. A filtration and separation mechanism is provided inside the outer cylinder. The filtration and separation mechanism includes an inner liner and a filter cloth. A spiral limiting channel is provided on the outer wall of the inner liner. Multiple through holes are provided in the spiral limiting channel along the spiral direction. The filter cloth is wound inside the spiral limiting channel and covers the through holes. An outlet component and a winding component are respectively provided at the upper and lower ends of the filter cloth.
[0007] Furthermore, the export component includes a detachable first housing, within which an export shaft and two first guide wheels are disposed. The export shaft is wound around the upper end of the filter cloth, and the two first guide wheels are located on both sides of the upper portion of the filter cloth.
[0008] Furthermore, the winding assembly includes a detachable second housing, within which a winding shaft and two second guide wheels are disposed. The winding shaft is wound around the lower end of the filter cloth, and the two second guide wheels are located on both sides of the lower end portion of the filter cloth.
[0009] Furthermore, a sealing cover is provided on the upper side of the outer wall of the second housing, and a motor is provided inside the sealing cover, with the output end of the motor connected to the upper end of the take-up shaft.
[0010] Furthermore, the sealing cover and the upper outer wall of the second housing are connected by bolts, and a sealing gasket is provided between the sealing cover and the second housing.
[0011] Furthermore, sealing rings are provided in the annular grooves at both the upper and lower ends of the inner liner.
[0012] Furthermore, an inlet port is provided on the side wall of the outer cylinder, and an outlet port is provided at the bottom of the outer cylinder, and the outlet port is connected to the inner cavity of the inner liner.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] This invention, through its inner liner, spiral limiting groove, through hole, filter cloth, discharge assembly, and rewind assembly, effectively filters and separates impurities from the lubricating oil during the lubricating oil production process. This reduces the problems of increased filtration resistance and decreased flow rate caused by clogging, ensuring filtration strength and allowing the lubricating oil to continuously pass through the filter cloth in a stable and efficient manner. It avoids the need for frequent filter bag replacement or cleaning required in traditional methods, greatly reducing manual intervention, labor intensity, downtime maintenance, and improving continuous equipment operating efficiency, while also reducing costs. It possesses practicality and economic advantages.
[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is an exploded view of the overall structure of this utility model;
[0018] Figure 3 This is an exploded view of the filtration and separation mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the filter bag connection structure of this utility model;
[0020] Figure 5 For the utility model Figure 3 Enlarged structural diagram of area A.
[0021] In the diagram: 1. Outer cylinder; 11. Inlet port; 12. Outlet port; 2. Filtration and separation mechanism; 21. Inner liner; 211. Spiral limiting channel; 212. Through hole; 22. Filter cloth; 23. Outlet assembly; 231. First housing; 232. Outlet shaft; 233. First guide wheel; 24. Rewinding assembly; 241. Second housing; 242. Rewinding shaft; 243. Second guide wheel; 244. Sealing cover; 245. Motor; 246. Sealing gasket; 25. Sealing ring; 3. Cover. Detailed Implementation
[0022] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.
[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0025] Please refer to the appendix carefully. Figure 1-5 An impurity filtration and separation device for lubricating oil production includes an outer cylinder 1, a liner, and a cover 3. The liner and the outer cylinder 1 are detachably connected. The cover 3 is located on the upper side of the liner. A filtration and separation mechanism 2 is provided inside the outer cylinder 1. The filtration and separation mechanism 2 includes an inner liner 21 and a filter cloth 22. A spiral limiting channel 211 is provided on the outer wall of the inner liner 21. Multiple through holes 212 are provided in the spiral limiting channel 211 along the spiral direction. The filter cloth 22 is wound inside the spiral limiting channel 211 and covers the through holes 212. An outlet component 23 and a winding component 24 are respectively provided at the upper and lower ends of the filter cloth 22.
[0026] The specific operation is as follows: the lubricating oil that needs to be filtered for impurities is introduced into the outer cylinder 1 through the inlet 11, that is, into the space formed by the inner wall of the outer cylinder 1 and the outer wall of the filter cloth 22 on the inner liner 21. The lubricating oil will pass through the filter cloth 22 and then enter the inner liner 21 through the through hole 212. The filter cloth 22 will intercept the impurities in the lubricating oil outside the inner liner 21. The lubricating oil that has entered the inner liner 21 will be discharged from the outlet 12. When part of the filter cloth 22 wrapped around the inner liner 21 becomes blocked, the motor 245 starts and drives the winding shaft 242 to rotate. Then, the blocked part of the filter cloth 22 is wound into the second housing 241. At the same time, the filter cloth 22 on the outlet shaft 232 is pulled out from the first housing 231 under the traction force of the motor 245, and then wound around the inner liner 21 along the spiral limiting channel 211, covering the filter hole, and it can then be used.
[0027] Please refer to the appendix carefully. Figure 3 and attached Figure 4The export assembly 23 includes a detachable first housing 231, within which an export shaft 232 and two first guide wheels 233 are disposed. The export shaft 232 is wound around the upper end of the filter cloth 22, and the two first guide wheels 233 are located on both sides of the upper portion of the filter cloth 22. Through the cooperation between the export shaft 232 and the first guide wheels 233, new filter cloth 22 is stored and exported when replaced. The winding assembly 24 includes a detachable second housing 241, within which a winding shaft 242 and two second guide wheels 243 are disposed. The winding shaft 242 is wound around the lower end of the filter cloth 22, and the two second guide wheels 243 are located on both sides of the lower portion of the filter cloth 22. On the other side, a sealing cover 244 is provided on the upper side of the outer wall of the second housing 241. A motor 245 is provided inside the sealing cover 244, and the output end of the motor 245 is connected to the upper end of the winding shaft 242. Through the cooperation between the motor 245, the winding shaft 242 and the second guide wheel 243, traction force is provided for winding the filter cloth 22 when it is necessary to replace the clogged filter cloth 22, and force is also provided for pulling out the new filter cloth 22. The sealing cover 244 and the upper side of the outer wall of the second housing 241 are connected by bolts, and a sealing gasket 246 is provided between the sealing cover 244 and the second housing 241. The sealing gasket 246 improves the sealing of the connection position.
[0028] Please refer to the appendix carefully. Figure 2 and attached Figure 3 The inner liner 21 has sealing rings 25 in the annular grooves at both ends. The sealing rings 25 improve the sealing at the connection between the upper and lower ends of the inner liner 21 and the lower side of the cover 3 and the bottom of the inner wall of the outer cylinder 1. The outer cylinder 1 has an inlet port 11 on its side wall and an outlet port 12 at its bottom. The outlet port 12 is connected to the inner cavity of the inner liner 21. The filtered oil in the inner liner 21 can be exported through the outlet port 12.
[0029] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.
Claims
1. An impurity filtration and separation device for lubricating oil production, comprising an outer cylinder (1), a liner, and a cover (3), wherein the liner and the outer cylinder (1) are detachably connected, and the cover (3) is located on the upper side of the liner, characterized in that, The outer cylinder (1) is provided with a filtration separation mechanism (2). The filtration separation mechanism (2) includes an inner liner (21) and a filter cloth (22). The outer wall of the inner liner (21) is provided with a spiral limiting channel (211). The spiral limiting channel (211) is provided with multiple through holes (212) along the spiral direction. The filter cloth (22) is wound in the spiral limiting channel (211) and covers the through holes (212). The upper end and lower end of the filter cloth (22) are respectively provided with an outlet component (23) and a winding component (24).
2. The impurity filtration and separation device for lubricating oil production according to claim 1, characterized in that, The export component (23) includes a detachable first housing (231), in which an export shaft (232) and two first guide wheels (233) are provided. The export shaft (232) is wound around the upper end of the filter cloth (22), and the two first guide wheels (233) are located on both sides of the upper part of the filter cloth (22).
3. The impurity filtration and separation device for lubricating oil production according to claim 1, characterized in that, The winding assembly (24) includes a detachable second housing (241), in which a winding shaft (242) and two second guide wheels (243) are provided. The winding shaft (242) is wound around the lower end of the filter cloth (22), and the two second guide wheels (243) are located on both sides of the lower end of the filter cloth (22).
4. The impurity filtration and separation device for lubricating oil production according to claim 3, characterized in that, A sealing cover (244) is provided on the upper side of the outer wall of the second housing (241). A motor (245) is provided inside the sealing cover (244), and the output end of the motor (245) is connected to the upper end of the winding shaft (242).
5. The impurity filtration and separation device for lubricating oil production according to claim 4, characterized in that, The sealing cover (244) and the upper outer wall of the second housing (241) are connected by bolts, and a sealing gasket (246) is provided between the sealing cover (244) and the second housing (241).
6. The impurity filtration and separation device for lubricating oil production according to claim 1, characterized in that, Sealing rings (25) are provided in the annular grooves at both the upper and lower ends of the inner liner (21).
7. The impurity filtration and separation device for lubricating oil production according to claim 1, characterized in that, An inlet port (11) is provided on the side wall of the outer cylinder (1), and an outlet port (12) is provided at the bottom of the outer cylinder (1), and the outlet port (12) is connected to the inner cavity of the inner liner (21).