Oil scraping plate and oil skimming device
By designing an inclined oil scraper section and an oil guide groove, the problems of scraper wear and high friction were solved, achieving low-energy and high-efficiency oil-water separation and extending the service life of the equipment.
Patent Information
- Application Number
- CN202423299855.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-29
AI Technical Summary
In existing oil-water separation equipment, the vertical contact between the scraper and the turntable leads to wear, high friction, high energy consumption, poor oil scraping effect, and the scraper is prone to deformation and damage, which affects the oil-water separation effect.
It adopts an integrated oil scraper structure with the outer end of the oil scraping section tilted upward. Combined with the oil guide groove design, it reduces friction and prevents grease backflow. The oil scraper and limit plate are fixed with rubber material to ensure oil scraping effect and service life.
It reduces drive energy consumption, improves oil scraping efficiency, prevents grease backflow, extends the service life of the oil scraper, and ensures effective oil-water separation.
Smart Images

Figure CN223760465U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to an oil -water separation equipment especially, relate to a kind of oil scraping plate and skimming device. BACKGROUND
[0002] Oil-water separation equipment is used for the separation of oil and water, and conventional oil-water separation equipment mainly sets up a baffle inside, and then separates oil and water by using the different specific gravity of oil and water. Oil has low specific gravity and will float on the water surface, so as to realize the separation of oil and water. In this separation method, the efficiency is relatively low, and there is a problem that part of the grease is mixed into the water and discharged, which affects the oil-water separation effect. Among them, such as the application number "2015208959149", the patent name "machine tool oil-water separation device", a turntable is provided on the top to accelerate oil-water separation, and a scraper is provided on the top to scrape off the grease on the turntable. However, this structure has the following disadvantages:
[0003] 1. The scraper directly contacts the turntable vertically, and if the scraper is worn, the oil scraping effect will be affected.
[0004] 2. The scraper and the turntable are in vertical contact, the friction of the rotating turntable is large, the power required for the driving part to drive the rotation is larger, the cost is higher, and the energy consumption is also higher.
[0005] 3. The scraper and the turntable are in vertical contact, and after the grease is scraped off, the grease will flow out beside the scraper, so that part of the scraped grease will flow to other positions and reflow into the oil-water separation equipment, affecting the oil-water separation effect.
[0006] 4. The scraper is directly fixed on the scraper by bolts, and the scraper is made of flexible material and is easy to deform and damage. Over time, the contact between the scraper and the turntable is unstable, affecting the oil scraping effect. SUMMARY
[0007] The utility model aims at providing an oil scraping plate and skimming device, which improves the oil scraping efficiency and effect, and prevents the grease from flowing back into the oil-water mixture.
[0008] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of an oil scraping plate, which is an integral structure, comprising a support part and an oil scraping part. The outer end of the oil scraping part is connected to the inner end of the support part, and the oil scraping part is inclined upward from outside to inside.
[0009] The support part comprises an outer support plate, an inner support plate and a limiting part, the limiting part is arranged between the inner support plate and the outer support plate, two ends of the limiting part are connected with an outer end of the inner support plate and an inner end of the outer support plate respectively, an outer end of the oil scraping part is connected with an inner end of the inner support plate, and a top plane of the limiting part is arranged above top planes of the inner support plate and the outer support plate.
[0010] In the technical scheme, bottom planes of the inner support plate and the outer support plate are arranged flush, and top planes of the inner support plate and the outer support plate are arranged flush.
[0011] In the technical scheme, the limiting part comprises a top plate, an inner plate and an outer plate, the inner plate and the outer plate are symmetrically arranged on two sides of the top plate, the inner plate is arranged obliquely upward from inside to outside, and the outer plate is arranged obliquely upward from outside to inside.
[0012] A bottom of the outer plate is connected with an inner end of the outer support plate, a top of the outer plate is connected with an outer end of the top plate, a bottom of the inner plate is connected with an outer end of the inner support plate, and a top of the inner plate is connected with an inner end of the top plate.
[0013] In the technical scheme, an oil guide groove is formed between the oil scraping part, the inner support plate and the limiting part.
[0014] In the technical scheme, the oil scraping plate is made of rubber.
[0015] The utility model discloses still provide a kind of skimming device, including mounting plate and skimming tray, the mounting plate is equipped with strip-shaped through slot, the middle part of the skimming tray is rotatably arranged in the strip-shaped through slot;
[0016] It is equipped with the oil scraping plate, the two sides of the skimming tray are respectively equipped with the oil scraping plate, the oil scraping plate is arranged at the front end of the skimming tray axis, and the oil scraping part of the inner end of the oil scraping plate is on the side wall of the skimming tray.
[0017] In the technical scheme, the oil scraping plate is mounted on the top surface of the mounting plate through the limiting plate.
[0018] In the technical scheme, the limiting plate is locked and limited on the mounting plate through a plurality of bolts, and the inner end bottom surface of the limiting plate is on the top surface of the outer support plate of the oil scraping plate.
[0019] In the technical scheme, the bottom surfaces of the outer support plate and the inner support plate are on the top surface of the mounting plate, and the inner end of the limiting plate is close to or on the outer side wall of the limiting part.
[0020] In the technical scheme, the plurality of bolts are forwardly and rearwardly spaced.
[0021] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0022] 1. In this utility model, the scraper blade has a four-section structure and the contact position with the skimming plate is inclined, which can reduce the friction between the blade and the skimming plate, reduce the driving force required for the skimming plate, save energy, and reduce costs.
[0023] 2. In this utility model, both the outer support plate and the inner support plate abut against the top surface of the mounting plate. The inclined oil scraping part and the upper protruding limiting part form an oil guide groove. The grease scraped off by the oil scraping part from the oil skimming plate can enter the oil guide groove for collection and discharge, preventing the grease from flowing back into the oil-water separator and ensuring the oil scraping efficiency and effect.
[0024] 3. In this utility model, the scraper is pressed onto the mounting plate by the limiting plate, eliminating the need to drill holes in the scraper, thus preventing damage to the scraper and minimizing deformation or displacement, ensuring service life and scraping effect. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the oil scraper in Embodiment 1 of this utility model;
[0026] Figure 2 This is a schematic diagram of the oil skimming device in Embodiment 1 of this utility model;
[0027] Figure 3 yes Figure 2 A magnified view of a portion of the image.
[0028] The components are: 1. oil scraper; 2. oil scraper section; 3. outer support plate; 4. inner support plate; 5. limiting section; 6. mounting plate; 7. oil skimmer; 8. strip groove; 9. connecting shaft; 10. drive mechanism; 11. oil guide groove; 12. limiting plate; 13. bolt; 14. top plate; 15. inner plate; 16. outer plate. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0030] Example 1: See Figures 1-3 As shown, an oil scraper 1 is an integral structure. The oil scraper 1 includes a support part and an oil scraping part 2. The outer end of the oil scraping part 2 is connected to the inner end of the support part. The oil scraping part 2 is inclined upward from the outside to the inside.
[0031] The support portion includes an outer support plate 3, an inner support plate 4, and a limiting portion 5. The limiting portion 5 is disposed between the inner support plate 4 and the outer support plate 3. The two ends of the limiting portion 5 are respectively connected to the outer end of the inner support plate 4 and the inner end of the outer support plate 3. The outer end of the oil scraping portion 2 is connected to the inner end of the inner support plate 4. The top plane of the limiting portion 5 is disposed above the top planes of the inner support plate 4 and the outer support plate 3.
[0032] This utility model also provides an oil skimming device, including a mounting plate 6 and an oil skimming tray 7. The mounting plate 6 is provided with a strip-shaped through groove 8, and the middle part of the oil skimming tray 7 is rotatably disposed in the strip-shaped through groove 8.
[0033] The oil scraper 1 is also provided. One oil scraper 1 is provided on each side of the oil skimming plate 7. The oil scraper 1 is located at the front end of the axis of the oil skimming plate 7. The oil scraping part 2 at the inner end of the oil scraper 1 abuts against the side wall of the oil skimming plate 7.
[0034] In this embodiment, multiple strip-shaped channels are provided, and the multiple strip-shaped channels are spaced apart from left to right. Each strip-shaped channel is provided with an oil skimming plate. A connecting shaft 9 is rotatably provided below the mounting plate. Multiple oil skimming plates are spaced apart on the connecting shaft. The driving mechanism 10 drives the connecting shaft to rotate, thereby driving multiple oil skimming plates to rotate simultaneously. Each oil skimming plate is provided with an oil scraper on both sides.
[0035] During operation, the top of the skimming pan rotates forward and downward, while the skimming pan below the mounting plate is in the oil-water mixture, mainly in contact with grease. The skimming pan is made of oleophilic material. When the skimming pan enters the oil-water mixture, the grease will stick to the skimming pan. After its rear end rotates upward and passes through the strip groove, it will be above the mounting plate. Then, when it rotates forward and downward to the scraper plate, it will come into contact with the scraper section, which will scrape off the grease on both sides of the skimming pan. Because the oil scraping part is inclined upwards from the outside to the inside, the resistance it provides to the oil skimming plate is smaller. Therefore, the rotational resistance of the oil skimming plate is reduced, the driving force of the drive mechanism is reduced, the cost is lower, and the energy consumption is lower. The grease scraped by the oil scraping part will flow along the inner support plate between the inclined oil scraping part and the limiting part. The oil scraping part, the inner support plate, and the limiting part form an oil guide groove 11. That is, the scraped grease will be immersed in the oil guide groove and will not flow back into the strip groove and enter the oil-water mixture. In this embodiment, the top surface of the mounting plate is inclined downwards from back to front. Therefore, the oil guide groove is also inclined downwards from back to front. The grease in the oil guide groove will flow forward along the oil guide groove, thereby enabling the grease in the oil guide groove to be collected and processed uniformly.
[0036] The scraper blade is made of rubber. Due to its inclined design and elasticity, when the front end of the skimming plate rotates downwards, it applies downward pressure to the inner end of the scraper blade. This ensures that even if the inner end of the scraper blade is partially worn, it still has a large deformation length and deformation space, allowing the scraper blade to basically fit against the side wall of the skimming plate, thus guaranteeing the scraping effect.
[0037] See Figure 1 As shown, the bottom planes of the inner support plate 4 and the outer support plate 3 are flush, and the top planes of the inner support plate 4 and the outer support plate 3 are flush.
[0038] See Figure 2 , 3 As shown, in this embodiment, the scraper blade 1 is mounted on the top surface of the mounting plate 6 via a limiting plate 12. The limiting plate 12 is locked and limited on the mounting plate by multiple bolts 13, and the bottom surface of the inner end of the limiting plate abuts against the top surface of the outer support plate of the scraper blade. The bottom surfaces of the outer support plate and the inner support plate abut against the top surface of the mounting plate, and the inner end of the limiting plate is close to or abuts against the outer wall of the limiting part.
[0039] In this embodiment, simply using a limiting plate to press the outer support plate against the top surface of the mounting plate achieves the outer end limitation of the scraper blade. During rotation, the skimming disc applies downward pressure to the inner end of the scraper section, which is then transmitted to the inner support plate, ensuring that the inner support plate remains pressed against the top surface of the mounting plate. This guarantees the installation and limiting effect of the scraper blade, thus ensuring effective scraping. Furthermore, this method eliminates the need for drilling holes in the scraper blade, preventing damage and cracking (conventional structures directly drill holes and use bolts to limit the scraper blade, which are prone to cracking), and extends its service life.
[0040] The bolts are spaced apart from right front to back. In this method, the outer end of the scraper blade can also be limited by the multiple bolts. Even if the scraper blade wants to deviate, it will be limited by the bolts, ensuring the installation of the scraper blade and the scraping effect.
[0041] See Figure 1 As shown, the limiting part 5 includes a top plate 14, an inner side plate 15, and an outer side plate 16. The inner side plate 15 and the outer side plate 16 are symmetrically arranged on both sides of the top plate 14. The inner side plate 15 is inclined upward from the inside to the outside, and the outer side plate 16 is inclined upward from the outside to the inside.
[0042] The bottom of the outer side plate 16 is connected to the inner end of the outer side support plate 3, the top of the outer side plate 16 is connected to the outer end of the top plate 14, the bottom of the inner side plate 15 is connected to the outer end of the inner side support plate 4, and the top of the inner side plate 15 is connected to the inner end of the top plate 14.
[0043] In this embodiment, the limiting part forms a downward-opening V-shaped structure, which, after abutting against the mounting plate, forms a triangular structure with good strength, stability, and is not easily damaged.
[0044] Meanwhile, the inner end of the limiting plate is close to or abuts against the outer wall of the outer plate. This helps to hold the scraper plate in place, preventing it from moving outward due to the external force of the skimming plate. Even if the skimming plate applies an outward force to the scraper, it will compress the inner plate, causing the limiting part to deform, i.e., the V-shaped opening angle of the V-shaped structure will decrease. However, its own restoring force will also be transmitted to the inner support plate and the scraper, ensuring that the scraper always rests against the skimming plate, guaranteeing the scraping effect and the skimming effect of the skimming plate. Alternatively, in the initial state, the limiting plate can be used to compress the limiting part in advance, so that the scraper rests against the skimming plate. Even if the scraper wears down, because the limiting part is in a compressed and deformed state, its restoring force will push the inner support plate and the scraper towards the skimming plate, ensuring that the scraper always rests against the side wall of the skimming plate, guaranteeing the scraping effect and service life.
Claims
1. A wiper blade, characterized by: The oil scraping plate is an integral structure, and comprises a supporting part and an oil scraping part, the outer end of the oil scraping part is connected with the inner end of the supporting part, and the oil scraping part is arranged upward and inclined from outside to inside; The supporting part comprises an outer supporting plate, an inner supporting plate and a limiting part, the limiting part is arranged between the inner supporting plate and the outer supporting plate, the two ends of the limiting part are connected with the outer end of the inner supporting plate and the inner end of the outer supporting plate respectively, the outer end of the oil scraping part is connected with the inner end of the inner supporting plate, and the top plane of the limiting part is arranged above the top planes of the inner supporting plate and the outer supporting plate.
2. The oil scraper as claimed in claim 1, characterized in that: The bottom planes of the inner supporting plate and the outer supporting plate are arranged in a flush manner, and the top planes of the inner supporting plate and the outer supporting plate are arranged in a flush manner.
3. The oil scraper as defined in claim 1, wherein: The limiting part comprises a top plate, an inner plate and an outer plate, the inner plate and the outer plate are symmetrically arranged on the two sides of the top plate, the inner plate is arranged upward and inclined from inside to outside, and the outer plate is arranged upward and inclined from outside to inside. The bottom of the outer plate is connected with the inner end of the outer supporting plate, the top of the outer plate is connected with the outer end of the top plate, the bottom of the inner plate is connected with the outer end of the inner supporting plate, and the top of the inner plate is connected with the inner end of the top plate.
4. The oil scraper as defined in claim 1, wherein: An oil guiding groove is formed between the oil scraping part, the inner supporting plate and the limiting part.
5. The oil scraper as defined in claim 1, wherein: The oil scraping plate is made of rubber.
6. An oil skimming device characterised in that: The installation plate is provided with a strip-shaped through groove, and the middle part of the oil skimming disc is rotatably arranged in the strip-shaped through groove. The oil skimming disc is also provided with the oil scraping plate, and the oil scraping plate is arranged at the front end of the axis of the oil skimming disc.
7. The oil skimming device of claim 6, wherein: The oil scraping plate is installed on the top surface of the installation plate through the limiting plate.
8. The oil skimming device of claim 7, wherein: The limiting plate is locked and limited on the installation plate through a plurality of bolts, and the inner end bottom surface of the limiting plate abuts against the top surface of the outer supporting plate of the oil scraping plate.
9. The oil skimming device of claim 7, wherein: The bottom surfaces of the outer supporting plate and the inner supporting plate abut against the top surface of the installation plate, and the inner end of the limiting plate is close to or abuts against the outer side wall of the limiting part.
10. The oil skimming device of claim 8, wherein: The plurality of bolts are arranged in a front-to-back interval from right to left.