Novel lubricating system with prefilter
By introducing a pre-filter into the reducer lubrication system, the problem of oil pipe blockage caused by the accumulation of impurities in the lubricant oil is solved, extending the service life of the reducer and reducing maintenance costs.
Patent Information
- Application Number
- CN202421974615.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-08-15
AI Technical Summary
In the existing reducer lubrication system, as time accumulates, the lubricating oil will contain a large amount of impurities, causing the oil pipe to be blocked and seriously affect the service life of the gears and bearings.
A lubrication system with a pre-filter is designed. By setting up a pre-filter in the lubrication system, large particles of impurities in the oil are filtered by using a filter to prevent them from entering the reducer.
The suspended particles in the oil before entering the reducer are effectively filtered, preventing internal blockage of the equipment, extending the service life of the reducer, and reducing maintenance costs.
Smart Images

Figure CN222811200U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of reducer lubrication and filtration, in particular to a novel lubrication system with a pre-filter. Background Art
[0002] Conventional reducer lubrication system includes reducer, oil tank, filter, oil pump and related oil pipes and valves. During the operation of reducer, the oil pump is pressurized, and the lubricating oil in the oil tank flows to various parts of the reducer, and takes away the relative movement of various parts inside it during operation. The role of industrial lubricating oil (gear oil) is to reduce the friction coefficient between mechanical transmission parts and bearings, reduce wear, reduce energy consumption, and extend the service life of various parts. It can absorb vibration, cool, and reduce temperature. With the accumulation of time, the oil in the lubrication system will contain a large amount of impurities, including heavy metal particles, plastic particles, water-soluble substances, and sludge generated by the deterioration of lubricating oil. Through the flow of oil, these impurities flow to various parts of the reducer, causing blockage of the oil pipe, seriously affecting the service life of gears and bearings, so a new lubrication system with a pre-filter is now needed. Utility Model Content
[0003] The purpose of the utility model is to provide a novel lubrication system with a pre-filter, which solves the problem of large particle impurities entering the reducer through the pre-filter, filters impurities to solve the problem of oil cleanliness and improves the life of the reducer, so as to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above object, the utility model provides the following technical solutions: a novel lubrication system with a pre-filter, comprising a pre-filter, a filter screen is inserted inside the pre-filter, and a plugging cover is sealed and installed on the top of the pre-filter;
[0005] A flow signaler is installed at the input end of the pre-filter;
[0006] The output end of the pre-filter is sealed and connected with a valve switch, the output end of the valve switch is sealed and installed with a metal hose, and the end of the metal hose is installed with a third joint.
[0007] Preferably, the input end of the flow signaler is sealed and connected with a first joint via a connecting flange, and the pre-filter and the valve switch are sealed and connected via a sealing connection lock.
[0008] Preferably, the pre-filter is a Y-type filter, the specification of the pre-filter is DN40, and the filter accuracy is 0.1mm-0.5mm.
[0009] Preferably, the valve switch is a DN40 ball valve, and the output end of the valve switch is sealed and connected with a second joint through another set of connecting flanges.
[0010] Preferably, a group of sealing connecting sleeves are respectively installed at both ends of the metal hose, and reinforcing internal ribs are arranged inside the metal hose.
[0011] Preferably, one end of the metal hose is sealedly connected to the second joint via a sleeve, the other end of the metal hose is sealedly connected to the sleeve and a bent pipe is installed thereon, and the bottom end of the bent pipe is sealedly installed with a third joint.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] This filter device mainly filters a large number of suspended particles visible to the naked eye in the oil before entering the reducer, preventing the equipment from being blocked by large particles and prolonging the service life of the reducer. The installation of this filter device is simple, basically filtering by the filter net, no need to change the filter element, no other consumables, relying on the pressure filtration of the liquid, only regular cleaning is required, the cost is low, and the impurities in the lubricating oil can be effectively discharged for a second time, thereby improving the cleanliness of the oil. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;
[0016] Figure 3 This is a schematic diagram of the connection structure of the device of the utility model.
[0017] In the figure: 1. first joint; 2. flow signaler; 3. pre-filter; 4. filter screen; 5. sealing connection lock; 6. valve switch; 7. second joint; 8. sealing connection sleeve; 9. metal hose; 10. reinforced inner rib; 11. elbow; 12. third joint. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] The utility model provides: a novel lubrication system with a pre-filter, such as Figure 1-Figure 3As shown, it includes a pre-filter 3, a filter screen 4 is inserted inside the pre-filter 3, and a plugging cover is sealed and installed on the top of the pre-filter 3; a flow signal device 2 is installed at the input end of the pre-filter 3; a valve switch 6 is sealed and connected to the output end of the pre-filter 3, a metal hose 9 is sealed and installed at the output end of the valve switch 6, and a third joint 12 is installed at the end of the metal hose 9, and the third joint 12 is sealed and connected to the oil inlet of the reducer. The traditional rolling mill reducer filter is installed at the front end of the oil tank, which can only prevent impurities in the reducer from flowing back into the oil tank to pollute the oil. The filtration is relatively simple. Once the oil in the oil tank deteriorates or the degree of oil degradation exceeds the filtration limit of the filter, a large amount of suspended particles will enter the oil tank and enter the reducer casing through the oil pump, causing the oil pipe to be blocked. In severe cases, the service life of the reducer will be greatly reduced. The third The joint 12 is sealed and connected to the reducer, the oil outlet of the reducer is connected to the filter, the filter is connected to the oil tank, and the oil tank is connected to the first joint 1. The oil sent out from the oil tank will first flow to the pre-filter 3 through the first joint 1. The filter 4 installed inside the pre-filter 3 can effectively remove large particles of impurities, thereby completing the protection of the reducer. At the same time, since the plugging cover on the top of the pre-filter 3 can be removed, the filter 4 installed inside the pre-filter 3 can be pulled out to complete the cleaning of the filter 4. There is no need to change the filter element, and there are no other consumables. It relies on the pressure filtration of the liquid. While improving the protection of the reducer, it greatly reduces the cost of use. The filtered oil can then be discharged for a second time, improving the cleanliness of the oil, thereby further protecting the reducer and greatly reducing the maintenance cost and the cost of use.
[0020] Preferably, the input end of the flow signal device 2 is sealed and connected with a first joint 1 through a connecting flange, and the pre-filter 3 and the valve switch 6 are sealed and connected through a sealing connection lock 5. The set flow signal device 2 can record the oil delivery situation in real time, which is convenient for observing the flow rate and prevents the pre-filter 3 from being blocked and causing the oil flow to be reduced. It plays an alarm role when the pre-filter 3 is blocked, thereby reminding the staff to clean the filter 4 installed inside the flow signal device 2, thereby better ensuring the continuity and stability of the use of the device and reducing the occurrence of failures.
[0021] Furthermore, the pre-filter 3 uses a Y-type filter, the specification of the pre-filter 3 is DN40, and the filter screen 4 has a filter accuracy of 0.1mm-0.5mm. The pre-filter 3 uses a Y-type filter to make the filter screen 4 easier to disassemble, thereby better completing the cleaning and replacement of the filter screen 4, so that the device can be used stably and continuously, and the filtering accuracy of the filter screen 4 can be selected in a targeted manner. After one filtration is completed, the use status of the filter screen 4 is observed to complete the adjustment of the filtering accuracy of the filter screen 4 to better adapt to the use of different oil bodies and meet the filtering requirements, thereby better targeting the reducer and improving the service life of the reducer.
[0022] Furthermore, the valve switch 6 uses a DN40 ball valve, and the output end of the valve switch 6 is sealed and connected with a second joint 7 through another set of connecting flanges. When the filter 4 needs to be removed for cleaning or replacement, the valve switch 6 needs to be closed to avoid oil leakage and improve the safety of the device. The second joint 7 installed at the output end of the valve switch 6 can ensure the sealing connectivity with the sealing connecting sleeve 8, so that the device can better adapt to the installation and use position of the reducer through the metal hose 9, greatly improving the convenience of the device.
[0023] It is worth mentioning that a group of sealing connecting sleeves 8 are respectively installed at both ends of the metal hose 9, and reinforced internal ribs 10 are arranged inside the metal hose 9. The reinforced internal ribs 10 are arranged inside the metal hose 9 to improve the use strength of the metal hose 9. While maintaining the overall softness of the metal hose 9, the use strength of the metal hose 9 is strengthened to avoid oil leakage caused by damage to the metal hose 9 during use. At the same time, the output position can be freely selected through the set metal hose 9, so that the third joint 12 can be more conveniently connected to the reducer.
[0024] Specifically, one end of the metal hose 9 is sealedly connected to the sleeve 8 and is sealedly connected to the second joint 7, and the other end of the metal hose 9 is sealedly connected to the sleeve 8 and is sealedly installed with a bend pipe 11, and a third joint 12 is sealedly installed at the bottom end of the bend pipe 11. The bend pipe 11 can change the use angle of the third joint 12, and cooperate with the metal hose 9 to make the connection state more stable, thereby preventing the metal hose 9 from squeezing the oil circuit during excessive bending, resulting in the problem of poor oil delivery, thereby greatly improving the sealing and safety of the connection between the device and the reducer.
[0025] Working principle: A filtering device is installed at the oil inlet of the reducer. This device can prevent the lubricating oil from carrying a large amount of impurities into the reducer housing after being contaminated, prevent the oil pipe from being blocked, and provide secondary protection for the reducer. It can solve the problem of large particles of impurities entering the reducer, filter impurities, solve the problem of oil cleanliness, and increase the life of the reducer.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A new type of lubrication system with a pre-filter, characterized by: It comprises a pre-filter (3), a filter screen (4) is inserted inside the pre-filter (3), and a plugging cover is installed on the top of the pre-filter (3) in a sealed manner; The input end of the pre-filter (3) is provided with a flow signal device (2); The output end of the pre-filter (3) is sealed and connected to a valve switch (6), the output end of the valve switch (6) is sealed and installed with a metal hose (9), and the end of the metal hose (9) is installed with a third joint (12).
2. A novel lubrication system with a pre-filter according to claim 1, characterized in that: The input end of the flow signal device (2) is sealed and connected with a first connector (1) via a connecting flange, and the pre-filter (3) and the valve switch (6) are sealed and connected via a sealing connection lock (5).
3. A novel lubrication system with a pre-filter according to claim 2, characterized in that: The pre-filter (3) is a Y-type filter, the specification of the pre-filter (3) is DN40, and the filter screen (4) has a filter screen accuracy of 0.1mm-0.5mm.
4. A novel lubrication system with a pre-filter according to claim 3, characterized in that: The valve switch (6) is a DN40 ball valve, and the output end of the valve switch (6) is sealed and connected with a second joint (7) via another set of connecting flanges.
5. A novel lubrication system with a pre-filter according to claim 4, characterized in that: A set of sealing connection sleeves (8) are respectively installed at both ends of the metal hose (9), and a reinforcing inner rib (10) is arranged inside the metal hose (9).
6. A novel lubrication system with a pre-filter according to claim 5, characterized in that: One end of the metal hose (9) is sealedly connected to the sleeve (8) and is sealedly connected to the second joint (7), and the other end of the metal hose (9) is sealedly connected to the sleeve (8) and is sealedly installed with a bent pipe (11), and the bottom end of the bent pipe (11) is sealedly installed with a third joint (12).