Heavy hydraulic oil cylinder capable of preventing residues from adhering

By designing a residue-prevention and dust-blowing mechanism in the heavy-duty hydraulic cylinder, the problem of cleaning high-temperature metal residue and dust is solved. The scraper is easy to replace, which reduces vibration and extends service life.

CN223387665UActive Publication Date: 2025-09-26JIANGSU XIANGLI HEAVY IND TECH CO LTD
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Patent Information

Application Number
CN202422661841.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-09-26
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

Existing heavy-duty hydraulic cylinders are prone to high-temperature metal residues sticking to them when using lubricating oil, causing dust to stick and be difficult to clean. Scrapers and wiping cloths are easily damaged and difficult to replace, and there is severe vibration during operation, which affects the service life.

Method used

A mechanism is designed to prevent residue from sticking, including a scraper, connecting rod, spring, clip and block to facilitate scraper replacement; the dust blowing mechanism uses an electric fan and a dustproof net to clean dust; the fixed installation mechanism uses rubber brackets and connecting plates to reduce vibration.

Benefits of technology

Effectively scrape away debris, clean dust, improve piston rod cleanliness, reduce vibration, and extend equipment service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heavy hydraulic oil cylinder capable of preventing residue adhesion, which comprises a cylinder barrel, a fixing block and the cylinder barrel are fixedly mounted on the upper side and the lower side of the outside of the cylinder barrel, a fixed mounting mechanism is arranged on the left side of the cylinder barrel, and the fixed mounting mechanism comprises a connecting plate, a rubber support, a mounting plate and a mounting hole. A connecting plate is fixedly mounted on the left side of the cylinder barrel, a rubber support is arranged on the left side of the connecting plate, and a mounting plate is fixedly connected to the left side of the rubber support. According to the heavy hydraulic oil cylinder capable of preventing the residues from adhering, the residue adhering preventing mechanism is arranged, the scraping plate is arranged, residues adhering to the piston column can be scraped, cleanliness of the piston column is guaranteed, normal operation of the piston column is guaranteed, meanwhile, the dust blowing mechanism is arranged, small dust adhering to the piston column can be blown, and the dust blowing effect is good. And in addition, a fixed mounting mechanism is arranged, so that the oil cylinder can be fixedly mounted in a damping manner, and the mounting stability of the oil cylinder is greatly improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of heavy hydraulic oil cylinders, in particular to a heavy hydraulic oil cylinder capable of preventing residue from sticking. Background Art

[0002] Heavy-duty hydraulic cylinders are used in heavy machinery or equipment. They are primarily designed to withstand high pressures and loads and are commonly found in heavy machinery and equipment such as heavy trucks, excavators, and cranes. They are designed with durability and stability in mind to ensure they can function properly even under harsh working conditions. While there are many different types of heavy-duty hydraulic cylinders available on the market, there are still some drawbacks.

[0003] The existing heavy-duty hydraulic cylinder can prevent high-temperature metal residues from sticking to the piston rod by applying lubricating oil. When the lubricating oil is easily contaminated with dust, the dust will adhere to the lubricating oil, which is difficult to clean. At the same time, a scraper and a rag are provided to clean the residue. The scraper and the rag will be damaged after long-term use, and it is difficult to disassemble and replace them, which will affect the effect of cleaning the residue. In addition, a large amount of vibration will be generated when the cylinder is running. If it is not shock-absorbing and stably installed, its service life will be greatly shortened. For example, the Chinese utility model patent with the authorization announcement number CN215058594U discloses a heavy metallurgical equipment hydraulic The hydraulic cylinder includes a main cylinder body, upper oil inlet and outlet pipes, lower oil inlet and outlet pipes, a first sealing piston, and a piston rod. An oiling pipe is fixedly provided at the lower end of the main cylinder body. An annular cavity is formed in the inner wall of the oiling pipe. A groove is formed at the lower end of the oiling pipe. An oil-absorbing sponge is fixedly provided in the groove. Multiple oil leakage holes are formed between the annular cavity and the groove. An annular oil cylinder is fixedly provided at the lower end of the oiling pipe. A fixed pipe is fixedly provided on the inner wall of the annular oil cylinder. A second sealing piston is slidingly provided in the fixed pipe. Fixed rods are fixedly provided at opposite ends of the two second sealing pistons. A cleaning mechanism is fixedly provided at the other end of the fixed rod. A branch pipe is fixedly provided on the wall of the lower oil inlet and outlet pipes. The utility model can conveniently clean and oil the piston rod of the hydraulic cylinder, effectively prevent high-temperature metal residue from adhering to the piston rod, and extend the service life of the hydraulic cylinder. However, the lubricating oil applied to this hydraulic cylinder can prevent high-temperature metal residues from sticking to the piston rod. When the lubricating oil is easily contaminated with dust, the dust will stick to the lubricating oil, which is difficult to clean. At the same time, a scraper and a rag are provided to clean the residue. The scraper and the rag will be damaged after long-term use, and it is difficult to disassemble and replace them, which will affect the effect of cleaning the residue. In addition, a large amount of vibration will be generated when the cylinder is running. If it is not installed for shock absorption and stability, its service life will be greatly shortened. Therefore, we propose a heavy-duty hydraulic cylinder that prevents residues from sticking, so as to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a heavy-duty hydraulic cylinder that prevents residue from sticking, so as to solve the problem of the current heavy-duty hydraulic cylinder proposed in the above background technology. By applying lubricating oil, high-temperature metal residue is not easily adhered to the piston column. When the lubricating oil is easily contaminated with dust, the dust will be adhered to the lubricating oil, which is difficult to clean. At the same time, scrapers and rags are provided to clean the residue. The scrapers and rags will be damaged after long-term use and are difficult to disassemble and replace, which will affect the effect of cleaning the residue. In addition, a large amount of vibration will be generated during the operation of the cylinder. If it is not installed for shock absorption and stability, its service life will be greatly shortened.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a heavy-duty hydraulic cylinder for preventing residue from sticking, comprising:

[0006] A cylinder, wherein fixing blocks are fixedly mounted on the upper and lower sides of the exterior of the cylinder;

[0007] Also includes:

[0008] A cylinder, wherein a fixed mounting mechanism is provided on the left side of the cylinder, wherein the fixed mounting mechanism includes a connecting plate, a rubber bracket, a mounting plate, and a mounting hole; the connecting plate is fixedly mounted on the left side of the cylinder, and a rubber bracket is provided on the left side of the connecting plate, and the mounting plate is fixedly connected to the left side of the rubber bracket, and mounting holes are opened inside the upper and lower sides of the mounting plate;

[0009] The piston column is provided with a mechanism to prevent residue from sticking on the lower outer side of the piston column, wherein the mechanism to prevent residue from sticking on includes a scraper, a connecting rod, a support block, a spring, a buckle and a block. The scraper is symmetrically and tightly fitted on the lower outer side of the piston column in front and back, and a connecting rod is installed on the outer side of the scraper, and a support block is fixedly installed on the upper outer side of the connecting rod, and springs are installed at equal distances inside the support block.

[0010] Preferably, a piston column is slidably connected to the interior of the cylinder, and a connecting ring is fixedly installed on the outer side below the piston column.

[0011] Preferably, the outer side of the connecting ring is fixedly connected to a moving rod at an equal angle, and the outer side of the moving rod is slidably connected to a fixed rod, and the fixed rod is arranged at an equal angle outside the cylinder, and the fixed rod is fixedly installed inside the fixed block.

[0012] Preferably, a buckle is fixedly connected to the interior of the spring, and the buckle is rotatably connected to the connecting rod.

[0013] Preferably, a clamping block is connected to the inside of the buckle, and the clamping block is symmetrically installed on the lower outside of the fixing block.

[0014] Preferably, an air outlet is provided on the lower left side of the piston column, a dustproof net is installed inside the air outlet, and a connecting pipe is fixedly connected to the left side of the air outlet.

[0015] Preferably, a fixing plate is installed on the outside of the connecting pipe, and the fixing plate is fixedly connected to the bottom of the fixing block, and an electric fan is fixedly connected to the left side of the connecting pipe, and the electric fan is installed below the right side of the mounting plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the heavy-duty hydraulic oil cylinder that prevents residue from sticking is provided with a mechanism to prevent residue from sticking, and a scraper is provided to scrape off the residue stuck on the piston column, thereby ensuring the cleanliness of the piston column and enabling its normal operation; at the same time, a dust blowing mechanism is provided to blow away the fine dust stuck on the piston column, thereby further cleaning the piston column; in addition, a fixed installation mechanism is provided, which can fix and damp the installation of the oil cylinder, thereby greatly improving the stability of the oil cylinder installation;

[0017] 1. A connecting plate, a rubber bracket, a mounting plate and a mounting hole are provided. The connecting plate is installed on the upper and lower parts of the left middle part of the cylinder, and a rubber bracket is provided on the left side of the connecting plate. The left side of the rubber bracket is fixedly connected to the mounting plate. At the same time, mounting holes are provided inside the upper and lower sides of the mounting plate. The mounting plate is fitted to the position where it needs to be installed, and the rivets are inserted into the mounting holes and the positions where they need to be connected. The rivets are tightened to fix the equipment. In addition, the provision of the rubber bracket can reduce the vibration and friction generated when the equipment is running.

[0018] 2. A piston column and a scraper are provided. The piston column is slidably arranged inside the cylinder, and the piston column can move up and down inside the cylinder. At the same time, a scraper is installed on the lower side of the piston column. When the piston column moves up and down, the scraper can scrape off the residue stuck on the outside of the piston column;

[0019] 3. A connecting rod, a spring, a buckle and a block are provided. The connecting rod is symmetrically installed on the outer side of the scraper, and the connecting rod fits tightly together with the bottom of the fixed block. At the same time, a support block is provided above the connecting rod, and the inside of the support block is fixedly connected to the spring, and the inside of the spring is connected to the buckle. The buckle is rotatably connected to the connecting rod, that is, a spring is provided between the support block and the buckle, and the elastic force of the spring can make the buckle engage and connect with the block symmetrically installed on the outside of the fixed block. That is, if you want to replace the scraper, rotate the buckle outward to disengage it from the block, and then the scraper can be quickly removed for replacement;

[0020] 4. A fixed rod, a movable rod and a connecting ring are provided. The connecting ring is fixedly installed on the lower outer side of the piston column, and the movable rod is fixedly connected to the upper outer side of the connecting ring. The movable rod is slidingly arranged inside the fixed rod. That is, when the piston column moves downward, the connecting ring will move with it, and will pull the movable rod to slide downward inside the fixed rod, which can ensure that the piston column moves more smoothly.

[0021] 5. An air outlet, a connecting pipe, a fixing plate and an electric fan are provided. The air outlet is provided on the left side below the piston column, the connecting pipe is connected to the left side of the air outlet, a fixing plate is provided on the outside of the connecting pipe, and the fixing block is fixedly connected through the fixing plate to provide stable support for the connecting pipe. At the same time, the electric fan is fixedly connected to the left side of the connecting pipe. When the electric fan is turned on, the electric fan can blow air, and the wind can be blown out from the air outlet through the connecting pipe, which can clean the dust sticking to the outside of the piston column, further ensuring the cleanliness of the piston column. Secondly, a dustproof net is provided inside the air outlet to prevent a large amount of dust from entering the inside of the connecting pipe, causing blockage inside the connecting pipe, thereby affecting the output of wind power. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a perspective structural diagram of the utility model;

[0023] Figure 2 This is a perspective structural diagram of the connection between the rubber bracket, mounting plate and mounting hole of the utility model;

[0024] Figure 3 This is a perspective cross-sectional structural diagram of the utility model;

[0025] Figure 4 This is a perspective structural diagram of the connection between the piston column, scraper and connecting rod of the utility model;

[0026] Figure 5 This is a perspective structural diagram of the support block, spring and buckle connection of the utility model;

[0027] Figure 6 This is a perspective structural diagram of the air outlet, dust screen and connecting pipe of the utility model.

[0028] In the figure: 1. Cylinder; 2. Fixing block; 3. Connecting plate; 4. Rubber bracket; 5. Mounting plate; 6. Mounting hole; 7. Fixing rod; 8. Moving rod; 9. Connecting ring; 10. Piston column; 11. Scraper; 12. Connecting rod; 13. Support block; 14. Spring; 15. Buckle; 16. Block; 17. Air outlet; 18. Dust screen; 19. Connecting pipe; 20. Fixing plate; 21. Electric fan. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-6 , the utility model provides a technical solution:

[0031] Embodiment 1: In order to solve the problems existing in the prior art, this embodiment adopts the following technical solutions: a heavy-duty hydraulic cylinder for preventing residue from sticking, which is provided with a cylinder barrel 1, and fixed blocks 2 are fixedly installed on the upper and lower sides of the cylinder barrel 1; a mechanism for preventing residue from sticking is provided on the front and rear sides of the lower side of the piston column 10, which can scrape off the residue stuck on the surface of the piston column 10 and is also convenient for disassembly and replacement; a dust blowing mechanism is provided on the lower left side of the piston column 10, which can clean the fine dust stuck on the surface of the piston column 10 by turning on the electric fan 21 and transmitting wind through the connecting pipe 19, thereby further ensuring the cleanliness of the piston column 10; a fixed installation mechanism is provided on the left side of the cylinder barrel 1, which can stably install the equipment at a shock absorption level, and can greatly extend the service life of the equipment. To extend the service life of the equipment; first, a connecting plate 3 is installed on the left side of the cylinder 1, and a rubber bracket 4 is set on the left side of the connecting plate 3. The left side of the rubber bracket 4 is fixedly connected to the mounting plate 5, that is, the mounting plate 5 is fitted to the position where it needs to be installed, and the rivets are inserted into the mounting holes 6 opened on the upper and lower sides of the mounting plate 5, so that the equipment can be firmly installed, which can reduce the vibration damage during the operation of the equipment. At the same time, a piston column 10 is slidingly set on the inner side of the cylinder 1, and a scraper 11 is symmetrically installed under the piston column 10. That is, when the piston column 10 slides up and down, it can be slidably connected with the scraper 11, that is, the scraper 11 can scrape off the sticky residue on the surface of the piston column 10. Since the outer side of the scraper 11 is fixedly connected to the connecting rod 12, the connecting rod 12 and the fixed The bottom of the fixed block 2 fits tightly together, and at the same time, a support block 13 is installed on the upper outside of the connecting rod 12, and a buckle 15 is rotatably installed on the top of the connecting rod 12. A spring 14 is set between the buckle 15 and the support block 13 for connection. Since the spring 14 has elastic force, it can support the buckle 15 and the block 16 symmetrically installed front and back below the fixed block 2 for engagement connection. That is, if the scraper 11 needs to be replaced later, the buckle 15 can be rotated outward so that the buckle 15 and the block 16 are disengaged, and the scraper 11 can be replaced. In addition, a connecting ring 9 is fixedly installed on the outside of the lower part of the piston column 10, and the outer side of the connecting ring 9 is fixedly connected to the moving rod 8 at an equal angle. The moving rod 8 is slidably arranged inside the fixed rod 7, that is, when the piston column 10 slides, ... The connecting ring 9 will drive the moving rod 8 to slide together, and the moving rod 8 can ensure the stability of the piston column 10 when it moves. Secondly, an air outlet 17 is set on the lower left side of the piston column 10, and a connecting pipe 19 is connected through the left side of the air outlet 17. A fixing plate 20 is set on the outside of the connecting pipe 19, and the fixing plate 20 is fixedly connected to the fixing block 2, which supports the connecting pipe 19. Secondly, an electric fan 21 is connected to the left side of the connecting pipe 19. That is, when the electric fan 21 is turned on, wind can be delivered through the connecting pipe 19 and sprayed out from the air outlet 17, which can blow away the fine dust sticking to the surface of the piston column 10, further ensuring the cleanliness of the piston column 10. In addition, a dustproof net 18 is set inside the air outlet 17 to play a dustproof role.

[0032] The existing heavy hydraulic cylinder is provided with a scraper 11 and a rag to clean the residue. The scraper 11 and the rag will be damaged after long-term use and it is difficult to disassemble and replace them, which will affect the effect of cleaning the residue. Therefore, this embodiment adopts the following technical solutions, such as Figure 1 、 Figure 4 and Figure 5 As shown, the mechanism for preventing residue from sticking includes a scraper 11 that is tightly fitted on the front and rear sides below the piston column 10. The piston column 10 can move up and down inside the cylinder 1, that is, the scraper 11 can scrape off the residue stuck on the outside of the piston column 10. At the same time, a connecting rod 12 is symmetrically installed on the outside of the scraper 11. The connecting rod 12 is tightly fitted with the bottom of the fixed block 2. At the same time, a support block 13 is provided above the connecting rod 12. The inside of the support block 13 is fixedly connected to a spring 14, and the inside of the spring 14 is connected to a buckle 15. The buckle 15 is rotatably connected to the connecting rod 12. That is, a spring 14 is provided between the support block 13 and the buckle 15. The elastic force of the spring 14 can make the buckle 15 engage with the clamping block 16 symmetrically installed on the outside of the fixed block 2. That is, if you want to replace the scraper 11, rotate the buckle 15 outward to disengage it from the clamping block 16, and the scraper 11 can be quickly removed for replacement.

[0033] Example 2: In the existing heavy hydraulic cylinder, the outer side of the piston rod 10 will stick to fine dust, which is difficult to clean. Therefore, this embodiment adopts the following technical solutions, such as Figure 3 、 Figure 4 and Figure 6 As shown, the soot blowing mechanism includes an air outlet 17 arranged on the left side below the piston column 10, and a connecting pipe 19 is connected to the left side of the air outlet 17. A fixing plate 20 is provided on the outside of the connecting pipe 19, and the fixing block 2 is fixedly connected through the fixing plate 20 to stably support the connecting pipe 19. At the same time, an electric fan 21 is fixedly connected to the left side of the connecting pipe 19. That is, the electric fan 21 is turned on and the electric fan 21 can blow air. The wind can be blown out from the air outlet 17 through the connecting pipe 19, and the dust sticking to the outside of the piston column 10 can be cleaned, further ensuring the cleanliness of the piston column 10. Secondly, a dustproof net 18 is provided inside the air outlet 17 to prevent a large amount of dust from entering the inside of the connecting pipe 19, causing blockage inside the connecting pipe 19, thereby affecting the output of wind.

[0034] Example 3: The existing heavy hydraulic cylinder will generate a lot of vibration during operation. If it is not installed stably to reduce shock, its service life will be greatly shortened. Therefore, this embodiment adopts the following technical solutions, such as Figure 2 、 Figure 4 and Figure 6As shown, the fixed installation mechanism includes a connecting plate 3 arranged on the left side of the cylinder 1, a rubber bracket 4 is arranged on the left side of the connecting plate 3, and the left side of the rubber bracket 4 is fixedly connected to the mounting plate 5. At the same time, mounting holes 6 are opened inside the upper and lower sides of the mounting plate 5. That is, the mounting plate 5 is fitted to the position where it needs to be installed, and the rivet is inserted into the inside of the mounting hole 6 and the position where it needs to be connected, and it is tightened to fix the equipment. In addition, the setting of the rubber bracket 4 can reduce the vibration friction generated during the operation of the equipment.

[0035] The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market. Special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connections adopt conventional connection methods in the existing technology, which will not be described in detail here.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heavy-duty hydraulic cylinder for preventing residue from sticking, comprising: A cylinder (1), wherein fixing blocks (2) are fixedly mounted on the upper and lower sides of the exterior of the cylinder (1); It is characterized by further comprising: A cylinder (1), wherein a fixed mounting mechanism is provided on the left side of the cylinder (1), wherein the fixed mounting mechanism comprises a connecting plate (3), a rubber bracket (4), a mounting plate (5) and a mounting hole (6); the connecting plate (3) is fixedly mounted on the left side of the cylinder (1), and a rubber bracket (4) is provided on the left side of the connecting plate (3); and the mounting plate (5) is fixedly connected to the left side of the rubber bracket (4); and mounting holes (6) are provided inside the upper and lower sides of the mounting plate (5); A piston column (10) is provided with a residue sticking prevention mechanism on the lower outer side of the piston column (10), wherein the residue sticking prevention mechanism comprises a scraper (11), a connecting rod (12), a support block (13), a spring (14), a buckle (15) and a block (16); the scraper (11) is tightly fitted symmetrically front and back on the lower outer side of the piston column (10), and the connecting rod (12) is installed on the outer side of the scraper (11), and the support block (13) is fixedly installed on the upper outer side of the connecting rod (12), and springs (14) are installed at equal distances inside the support block (13).

2. A heavy-duty hydraulic cylinder for preventing residue from sticking according to claim 1, characterized in that: The interior of the cylinder (1) is slidably connected to a piston column (10), and a connecting ring (9) is fixedly installed on the outer side below the piston column (10).

3. The heavy-duty hydraulic cylinder for preventing residue from sticking according to claim 2, characterized in that: The outer side of the connecting ring (9) is fixedly connected to a moving rod (8) at an equal angle, and the outer side of the moving rod (8) is slidably connected to a fixed rod (7), and the fixed rod (7) is arranged at an equal angle outside the cylinder (1), and the fixed rod (7) is fixedly installed inside the fixed block (2).

4. The heavy-duty hydraulic cylinder for preventing residue from sticking according to claim 1, characterized in that: A buckle (15) is fixedly connected to the interior of the spring (14), and the buckle (15) is rotatably connected to the connecting rod (12).

5. The heavy-duty hydraulic cylinder for preventing residue from sticking according to claim 4, characterized in that: The interior of the buckle (15) is connected to a clamping block (16), and the clamping block (16) is symmetrically mounted on the lower outer side of the fixing block (2).

6. The heavy-duty hydraulic cylinder for preventing residue from sticking according to claim 2, characterized in that: An air outlet (17) is provided on the lower left side of the piston column (10), a dustproof net (18) is installed inside the air outlet (17), and a connecting pipe (19) is fixedly connected to the left side of the air outlet (17).

7. The heavy-duty hydraulic cylinder for preventing residue from sticking according to claim 6, characterized in that: A fixing plate (20) is installed on the outside of the connecting pipe (19), and the fixing plate (20) is fixedly connected to the bottom of the fixing block (2). An electric fan (21) is fixedly connected to the left side of the connecting pipe (19), and the electric fan (21) is installed below the right side of the mounting plate (5).

Citation Information

Patent Citations

  • A hydraulic cylinder for heavy metallurgical equipment

    CN215058594U