Anti-corrosion rotary oil cylinder
By applying chrome coating and multi-layer sealing structure on the rotary cylinder, the problems of water infiltration and rust are solved, and higher sealing and corrosion resistance are achieved, reducing maintenance costs.
Patent Information
- Application Number
- CN202421655937.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing rotary oil cylinders are prone to rust due to water seepage during use, and they need to be regularly rust-proofed, and insufficient sealing will cause water mist to enter the cylinder block.
An anti-rust rotary oil cylinder is designed, and a chrome coating is used to improve corrosion resistance. A multi-layer sealing groove and sealing ring structure is set at the connection between the mating cylinder and the pull rod to enhance the sealing property. At the same time, a drainage port is set on the water collection box to discharge water mist.
It effectively prevents water seepage and water mist from entering, reduces the risk of rust, improves the sealing and corrosion resistance of the oil cylinder, and reduces manual maintenance costs.
Smart Images
Figure CN222760041U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to rotary oil cylinders, and specifically relates to an anti-corrosion rotary oil cylinder. Background Art
[0002] The rotary cylinder is a common hydraulic actuator, which is widely used in various mechanical equipment. It is mainly responsible for the angle adjustment and position transmission of the turntable. During the use of the existing rotary cylinder, water passes through the pull rod. The water will slowly penetrate into the end face groove of the cylinder through the gap of the threaded fit, resulting in water accumulation at the connection between the flange and the cylinder. Through the continuous relative movement of the cylinder piston, water will enter the cylinder body of the cylinder from the piston gap, affecting the transmission parts in the rotary cylinder. The rotary cylinder is mostly made of carbon steel. The main component of carbon steel, iron, reacts chemically with moisture and oxygen in the air, which will cause the carbon steel to rust. The rotary cylinder needs to be regularly treated with rust prevention, which requires a large labor cost. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an anti-corrosion rotary cylinder. To solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:
[0004] The rust-proof rotary cylinder comprises a cylinder body and an outer shell. A matching tube is arranged in the cylinder body. Both end positions of the matching tube are processed with connecting internal threads. A tie rod matching sealing platform is arranged on the side of the connecting internal thread in the matching tube close to one end of the cylinder body. The tie rod matching sealing platform is an annular platform structure. A tie rod matching sealing groove 1, a tie rod matching sealing groove 2 and a tie rod matching sealing groove 3 are sequentially opened on the tie rod matching sealing platform. The tie rod matching sealing groove 1, the tie rod matching sealing groove 2 and the tie rod matching sealing groove 3 are all equipped with sealing rings of corresponding specifications. The outer surface of the cylinder body is sprayed with a chrome-plated coating. A shell flange is arranged at the end of the outer shell away from the cylinder body, and a water collecting box is arranged at the end of the shell flange.
[0005] Furthermore, a matching stop is provided on the end face of the oil cylinder body, end holes are evenly distributed on the outside of the matching stop, and a matching slot is provided on the inside of the matching stop. The setting of the end holes facilitates connection with the external flange.
[0006] Furthermore, a box body connecting flange is provided at the connecting end between the water collecting box and the outer shell, and connecting holes are processed on the box body connecting flange. The hole positions and specifications on the box body connecting flange and the shell flange match each other, so as to facilitate assembly connection.
[0007] Furthermore, a connecting sealing groove is provided on the inner side of the shell flange, a corresponding sealing groove is provided on the mating end face of the box body connecting flange, and a sealing ring 2 is provided in the connecting sealing groove to improve the sealing performance of the water collecting box and the outer shell.
[0008] Furthermore, a shell sealing groove is arranged on the outer shell at a position inside the connecting sealing groove, a sealing ring 1 is arranged in the shell sealing groove, an oil distribution plate is arranged at the lower part of the outer shell, and a pipeline connecting port is arranged at the side of the outer shell.
[0009] Furthermore, the water collecting box is a hollow cylindrical structure, and a drain port is provided on the outer wall of the water collecting box for draining the collected water.
[0010] The utility model provides a pull rod matching sealing platform at the matching position of the matching cylinder and the pull rod, and three sealing groove structures of different specifications are provided on the pull rod matching sealing platform. A sealing ring is installed in the sealing groove structure to effectively enhance the sealing performance of the matching between the pull rod and the matching cylinder, prevent water in the pull rod from penetrating into the cylinder body, and enhance the sealing performance inside the cylinder body.
[0011] The surface of the oil cylinder body of the utility model is provided with a chrome-plated coating, which can improve the corrosion resistance of the oil cylinder body, prevent oxygen and moisture from contacting the metal surface, and prevent the oil cylinder body from rusting. At the same time, a double sealing ring structure is provided at the outer diameter assembly at the other end of the matching tube, and a water collecting box is installed in cooperation to prevent water mist from entering the main shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;
[0013] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;
[0014] Figure 3 It is a partial main sectional view of the utility model;
[0015] Figure 4 For the utility model Figure 3 A partial enlarged view of point A in the figure.
[0016] In the figure: 1. Cylinder body; 2. Outer shell; 3. Matching stopper; 4. Matching cylinder; 5. End hole; 6. Water collecting box; 7. Box body connecting flange; 8. Connecting hole; 9. Protective extension ring; 10. Shell flange; 11. Connecting sealing groove; 12. Tie rod matching sealing platform; 13. Shell sealing groove; 14. Oil distribution plate; 15. Seal ring 2; 16. Seal ring 1; 17. Tie rod matching sealing groove 1; 18. Tie rod matching sealing groove 2; 19. Tie rod matching sealing groove 3; 20. Connecting internal thread; 21. Drain port. DETAILED DESCRIPTION
[0017] For Figures 1 to 4As shown, the rust-proof rotary cylinder comprises a cylinder body 1 and an outer shell 2, a matching tube 4 is arranged in the cylinder body 1, and connecting internal threads 20 are processed at both end positions of the matching tube 4, and a tie rod matching sealing platform 12 is arranged on the side of the connecting internal thread 20 in the matching tube 4 near one end of the cylinder body 1, and the tie rod matching sealing platform 12 is an annular platform structure, and a tie rod matching sealing groove 17, a tie rod matching sealing groove 28 and a tie rod matching sealing groove 3 19 are sequentially opened on the tie rod matching sealing platform 12, and sealing rings of corresponding specifications are arranged in the tie rod matching sealing groove 17, the tie rod matching sealing groove 28 and the tie rod matching sealing groove 3 19, the outer surface of the cylinder body 1 is sprayed with a chrome-plated coating, and a shell flange 10 is arranged at the end of the outer shell 2 away from the cylinder body 1, and a water collecting box 6 is arranged at the end of the shell flange 10.
[0018] Among them, a matching stop 3 is arranged on the end face of the cylinder body 1, end surface holes 5 are evenly arranged on the outside of the matching stop 3, and a matching groove is arranged on the inside of the matching stop 3. The setting of the end surface holes 5 is convenient for connection with the external flange.
[0019] The connection end between the water collecting box 6 and the outer shell 2 is provided with a box body connecting flange 7, on which connecting holes 8 are processed. The hole positions and specifications of the box body connecting flange 7 and the shell flange 10 match each other, so as to facilitate assembly connection.
[0020] A connecting sealing groove 11 is provided on the inner side of the shell flange 10, and a corresponding sealing groove is provided on the mating end face of the box body connecting flange 7. A sealing ring 15 is provided in the connecting sealing groove 11 to improve the sealing performance of the water collecting box 6 and the outer shell 2.
[0021] A shell sealing groove 13 is provided on the outer shell 2 at the inner side of the connecting sealing groove 11, a sealing ring 16 is provided in the shell sealing groove 13, an oil distribution plate 14 is provided at the lower part of the outer shell 2, and a pipeline connecting port is provided on the side of the outer shell 2.
[0022] The water collecting box 6 is a hollow cylindrical structure, and a drain port 21 is provided on the outer wall of the water collecting box 6 for draining the collected water.
[0023] The utility model provides a rod matching sealing platform 12 on the side of the connecting internal thread 20 that matches the pull rod in the matching cylinder 4, and three sealing groove structures of different specifications are provided on the rod matching sealing platform 12, wherein the rod matching sealing groove 1 17 is a rectangular ring groove, the rod matching sealing groove 2 18 is a deepened rectangular ring groove, and the rod matching sealing groove 3 19 is a double arc ring groove. Sealing rings of corresponding specifications are installed in the three sealing groove structures, which effectively enhances the sealing performance of the matching between the pull rod and the matching cylinder 4, and effectively seals the pull rod and the cylinder body to prevent water in the pull rod from passing through the thread The gap penetrates into the interior of the cylinder body to enhance the sealing of the interior of the cylinder body. The cylinder body 1 of the oil cylinder is provided with a chrome-plated coating on the surface. The chrome-plated layer can improve the corrosion resistance of the cylinder body 1, prevent oxygen and moisture from contacting the metal surface, prevent the cylinder body 1 from rusting, reduce the frequency of manual maintenance, and save labor costs. At the same time, a double sealing ring structure is provided at the outer diameter assembly at the other end of the matching tube 4, and a water collecting box 6 is installed in cooperation to prevent the water mist generated by the high-speed rotation of the oil cylinder from being sucked into the main shell body, and the water collecting box 6 is used to collect the water mist. A drain port 21 is provided on the outside of the water collecting box 6 to facilitate water collection and discharge.
[0024] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.
Claims
1. A rust-proof rotary oil cylinder, comprising an oil cylinder body (1) and an outer shell (2), characterized in that: The cylinder body (1) is provided with a matching tube (4), and both ends of the matching tube (4) are processed with connecting internal threads (20). A tie rod matching sealing platform (12) is provided on the side of the connecting internal threads (20) in the matching tube (4) close to one end of the cylinder body (1). The tie rod matching sealing platform (12) is an annular platform structure. The tie rod matching sealing platform (12) is provided with a tie rod matching sealing groove 1 (17), a tie rod matching sealing groove 2 (18) and a tie rod matching sealing groove 3 (19) in sequence. The tie rod matching sealing groove 1 (17), the tie rod matching sealing groove 2 (18) and the tie rod matching sealing groove 3 (19) are all provided with sealing rings of corresponding specifications. The outer surface of the cylinder body (1) is sprayed with a chrome-plated coating. A shell flange (10) is provided at one end of the outer shell (2) away from the cylinder body (1), and a water collecting box (6) is provided at the end of the shell flange (10).
2. The anti-corrosion rotary cylinder according to claim 1, characterized in that: A matching stop (3) is arranged on the end surface of the oil cylinder body (1), end holes (5) are evenly distributed on the outside of the matching stop (3), and a matching slot is arranged on the inside of the matching stop (3).
3. The anti-corrosion rotary cylinder according to claim 2, characterized in that: The connection end between the water collecting box (6) and the outer shell (2) is provided with a box body connecting flange (7), a connecting hole (8) is processed on the box body connecting flange (7), and the hole positions and specifications on the box body connecting flange (7) and the shell flange (10) match each other.
4. The anti-corrosion rotary cylinder according to claim 3, characterized in that: A connecting sealing groove (11) is arranged on the inner side of the shell flange (10), a corresponding sealing groove is arranged on the matching end surface of the box body connecting flange (7), and a sealing ring 2 (15) is arranged in the connecting sealing groove (11).
5. The anti-corrosion rotary cylinder according to claim 4, characterized in that: The outer shell (2) is provided with a shell sealing groove (13) at a position inside the connecting sealing groove (11), a sealing ring (16) is provided inside the shell sealing groove (13), an oil distribution plate (14) is provided at the lower part of the outer shell (2), and a pipeline connection port is provided at the side of the outer shell (2).
6. The anti-corrosion rotary cylinder according to claim 5, characterized in that: The water collecting box (6) is a hollow cylindrical structure, and a drainage port (21) is provided on the outer wall of the water collecting box (6).