Three-steel-making oil cylinder seal with high performance
By designing a three-steel-making oil cylinder sealing structure including screw, slider and clamp rod, the problem of loosening and replacement of the sealing device is solved, and high-performance sealing and convenient replacement are achieved.
Patent Information
- Application Number
- CN202421571069.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The existing three-steel-making cylinder seals are prone to loosening problems during long-term use, and the removal and replacement of the seal cover is relatively troublesome.
A sealing structure including a cylinder body, a support plate, a piston rod, a connecting plate, a threaded tube, a screw rod, a slide rod, a slider, a return spring, a snap ring, a connecting rod and a sealing cover is designed. The slider and connecting rod are moved by the rotation of the screw, so that the seal cover is close to the piston rod, preventing looseness, and the seal cover is easily replaced by the coupling rod and the compression spring.
Effectively prevent the sealing device from loosening on the outside of the piston rod, improve sealing performance, and simplify the replacement process of the sealing cover, improving the convenience of use.
Smart Images
Figure CN222702284U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a high-performance three-steel oil cylinder seal, belonging to the technical field of three-steel oil cylinders. Background Art
[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of the piston and the pressure difference on both sides; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device. A sealing cover is generally installed at the output end of the three-steel oil cylinder to seal it.
[0003] The existing three-steel cylinder seal still has some problems during use. When the sealing cover is used for a long time, the continuous friction between the piston rod and the sealing cover will cause the sealing device to loosen, and because the sealing cover is stuck between the cylinder and the piston rod, it will be more troublesome to disassemble. Utility Model Content
[0004] The purpose of the utility model is to provide a high-performance three-steel cylinder seal. The utility model has a simple structure and is easy to use. It can prevent the sealing device from loosening on the outside of the piston rod and can facilitate the replacement of the sealing device to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A high-performance three-steel oil cylinder seal comprises an oil cylinder body, a support plate is fixedly connected to the outer side of the oil cylinder body, a piston rod is fixedly connected to the output end of the oil cylinder body, a connecting plate is fixedly connected to the top of the support plate, a threaded tube is fixedly connected to the outer side of the connecting plate, a screw is threadedly connected to the inner side of the threaded tube, a movable groove is provided inside the support plate, a sliding rod is slidably connected to the inner side of the movable groove, a slider is fixedly connected to the top of the sliding rod, a reset spring is fixedly connected to the outer side of the slider, a clamping ring is fixedly connected to the top of the slider, a connecting rod is installed inside the clamping ring, and a sealing cover is fixedly connected to the outer side of the connecting rod.
[0007] Furthermore, a positioning hole is provided inside the connecting rod, a movable tube is fixedly connected to the outer side of the clamping ring, a clamping rod is movably connected inside the movable tube, and a compression spring is fixedly connected to the outer side of the clamping rod.
[0008] Furthermore, the support plates are symmetrically distributed on the outside of the oil cylinder body, and the connecting plates are symmetrically distributed on the top of the support plates.
[0009] Furthermore, the screw rod crosses the interior of the connecting plate, and the sliding block is slidably connected to the top of the supporting plate through a sliding rod.
[0010] Furthermore, one end of the return spring away from the slider is fixedly connected to the outer side of the connecting plate, and the sealing cover is symmetrically distributed on the outer side of the piston rod.
[0011] Furthermore, the return spring is symmetrically distributed between the slider and the connecting plate, and one end of the screw rod is located outside the slider.
[0012] Furthermore, one end of the compression spring away from the clamping rod is fixedly connected to the outside of the movable tube, and one end of the clamping rod is located inside the positioning hole.
[0013] The beneficial effects of the utility model are:
[0014] (I) The utility model is provided with a cylinder body, and a piston rod is fixedly connected to the output end of the cylinder body. First, the connecting rod is installed inside the clamping ring, so that the sealing cover is installed on the outside of the piston rod. At this time, the screw is rotated inside the threaded tube by rotating the screw rod. At this time, the screw rod moves inside the threaded tube, and the movement of the screw rod pushes the slider at the top of the slide rod, so that the slider drives the connecting rod to move, and then the connecting rod drives the sealing cover to be tightly attached to the outside of the piston rod, so as to prevent the sealing cover from loosening after long-term use.
[0015] (ii) The utility model is provided with an oil cylinder body. When it is necessary to replace the sealing cover on the outer side of the piston rod at the output end of the oil cylinder body, the clamping rod is first moved inside the movable tube, so that one end of the clamping rod is moved out from the positioning hole inside the connecting rod. At this time, the connecting rod can be moved out from the inside of the clamping ring, so that the sealing cover is moved away from the outer side of the piston rod. After replacing the new sealing cover, the clamping rod is loosened so that the clamping rod enters the positioning hole inside the connecting rod again under the action of the compression spring, and then the connecting rod inside the clamping ring is fixed, so that the sealing cover is installed on the outer side of the piston rod again, thereby achieving the effect of convenient replacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.
[0017] Figure 1 This is a schematic diagram of the structure of a high-performance three-steel oil cylinder seal of the utility model;
[0018] Figure 2 It is a structural schematic diagram of the outer side of a high-performance three-steel oil cylinder support plate of the utility model;
[0019] Figure 3 It is a structural schematic diagram of a high-performance three-steel oil cylinder seal cover and the outer side of the connecting plate of the utility model;
[0020] Figure 4 This is a structural schematic diagram of a high-performance three-steel oil cylinder sealing slider and the outer side of a threaded pipe of the utility model;
[0021] Figure 5 The utility model is a high-performance three-steel cylinder seal Figure 3 A magnified view of the structure at center A;
[0022] Numbers in the figure: 1. Cylinder body; 2. Support plate; 3. Piston rod; 4. Connecting plate; 5. Threaded tube; 6. Screw; 7. Moving groove; 8. Sliding rod; 9. Sliding block; 10. Reset spring; 11. Snap ring; 12. Connecting rod; 13. Sealing cover; 14. Positioning hole; 15. Movable tube; 16. Snap rod; 17. Compression spring. DETAILED DESCRIPTION
[0023] 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.
[0024] Example 1 Please refer to Figure 1-Figure 5 , the utility model provides a technical solution:
[0025] A high-performance three-steel oil cylinder seal comprises an oil cylinder body 1, a support plate 2 is fixedly connected to the outer side of the oil cylinder body 1, a piston rod 3 is fixedly connected to the output end of the oil cylinder body 1, a connecting plate 4 is fixedly connected to the top of the support plate 2, a threaded pipe 5 is fixedly connected to the outer side of the connecting plate 4, a screw 6 is threadedly connected to the inner side of the threaded pipe 5, a movable groove 7 is provided inside the support plate 2, a sliding rod 8 is slidably connected to the inner side of the movable groove 7, a slider 9 is fixedly connected to the top of the sliding rod 8, a return spring 10 is fixedly connected to the outer side of the slider 9, a clamping ring 11 is fixedly connected to the top of the slider 9, a connecting rod 12 is installed inside the clamping ring 11, and a sealing cover 13 is fixedly connected to the outer side of the connecting rod 12.
[0026] Specifically, Figure 1As shown, the support plate 2 is symmetrically distributed on the outside of the cylinder body 1, the connecting plate 4 is symmetrically distributed on the top of the support plate 2, the screw rod 6 crosses the inside of the connecting plate 4, the slider 9 is slidably connected to the top of the support plate 2 through the slide rod 8, the end of the return spring 10 away from the slider 9 is fixedly connected to the outside of the connecting plate 4, the sealing cover 13 is symmetrically distributed on the outside of the piston rod 3, the return spring 10 is symmetrically distributed between the slider 9 and the connecting plate 4, and one end of the screw rod 6 is located on the outside of the slider 9.
[0027] In this embodiment: a cylinder body 1 is provided, and a piston rod 3 is fixedly connected to the output end of the cylinder body 1. First, the connecting rod 12 is installed inside the clamping ring 11, so that the sealing cover 13 is installed on the outside of the piston rod 3. At this time, the screw 6 is rotated to rotate inside the threaded tube 5. At this time, the screw 6 moves inside the threaded tube 5, and the movement of the screw 6 pushes the slider 9 on the top of the slide rod 8, so that the slider 9 drives the connecting rod 12 to move, and then the connecting rod 12 drives the sealing cover 13 to be close to the outside of the piston rod 3, so as to prevent the sealing cover 13 from loosening after long-term use.
[0028] Example 2 Please refer to Figure 1 , Figure 2 and Figure 5 The difference between this embodiment and embodiment 1 is that a positioning hole 14 is opened inside the connecting rod 12, a movable tube 15 is fixedly connected to the outer side of the clamping ring 11, a clamping rod 16 is movably connected inside the movable tube 15, and a compression spring 17 is fixedly connected to the outer side of the clamping rod 16.
[0029] Specifically, Figure 1-5 As shown, one end of the compression spring 17 away from the clamping rod 16 is fixedly connected to the outside of the movable tube 15 , and one end of the clamping rod 16 is located inside the positioning hole 14 .
[0030] In the present embodiment: by setting up the cylinder body 1, when it is necessary to replace the sealing cover 13 on the outside of the piston rod 3 at the output end of the cylinder body 1, firstly, the clamping rod 16 is moved inside the movable tube 15, so that one end of the clamping rod 16 is moved out from the positioning hole 14 inside the connecting rod 12, and the connecting rod 12 can be moved out from the inside of the clamping ring 11 at this time, so that the sealing cover 13 is moved away from the outside of the piston rod 3. After replacing the new sealing cover 13, by loosening the clamping rod 16, the clamping rod 16 is allowed to enter the positioning hole 14 inside the connecting rod 12 again under the action of the compression spring 17, and then the connecting rod 12 inside the clamping ring 11 is fixed, so that the sealing cover 13 is installed on the outside of the piston rod 3 again, thereby achieving the effect of convenient replacement.
[0031] 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 high-performance triple-steel oil cylinder seal, comprising an oil cylinder body (1), characterized in that: The outer side of the oil cylinder body (1) is fixedly connected to a support plate (2), the output end of the oil cylinder body (1) is fixedly connected to a piston rod (3), the top of the support plate (2) is fixedly connected to a connecting plate (4), the outer side of the connecting plate (4) is fixedly connected to a threaded tube (5), the inner part of the threaded tube (5) is threadedly connected to a screw rod (6), a movable groove (7) is provided inside the support plate (2), a sliding rod (8) is slidably connected inside the movable groove (7), a slider (9) is fixedly connected to the top of the sliding rod (8), a return spring (10) is fixedly connected to the outer side of the slider (9), a clamping ring (11) is fixedly connected to the top of the slider (9), a connecting rod (12) is installed inside the clamping ring (11), and a sealing cover (13) is fixedly connected to the outer side of the connecting rod (12).
2. A high performance three-stage steelmaking oil cylinder seal according to claim 1, characterized in that: A positioning hole (14) is provided inside the connecting rod (12); a movable tube (15) is fixedly connected to the outside of the clamping ring (11); a clamping rod (16) is movably connected inside the movable tube (15); and a compression spring (17) is fixedly connected to the outside of the clamping rod (16).
3. The high performance three-stage steelmaking oil cylinder seal according to claim 1 is characterized in that: The support plates (2) are symmetrically distributed on the outside of the oil cylinder body (1), and the connection plates (4) are symmetrically distributed on the top of the support plates (2).
4. The high performance three-stage steelmaking oil cylinder seal according to claim 1 is characterized in that: The screw rod (6) crosses the interior of the connecting plate (4), and the sliding block (9) is slidably connected to the top of the supporting plate (2) via a sliding rod (8).
5. The high performance three-stage steelmaking oil cylinder seal according to claim 1 is characterized in that: One end of the return spring (10) away from the slider (9) is fixedly connected to the outside of the connecting plate (4), and the sealing cover (13) is symmetrically distributed on the outside of the piston rod (3).
6. The high performance three-stage steelmaking oil cylinder seal according to claim 1 is characterized by: The return spring (10) is symmetrically distributed between the slider (9) and the connecting plate (4), and one end of the screw rod (6) is located outside the slider (9).
7. The high performance three-stage steelmaking oil cylinder seal according to claim 2 is characterized by: One end of the compression spring (17) away from the clamping rod (16) is fixedly connected to the outside of the movable tube (15), and one end of the clamping rod (16) is located inside the positioning hole (14).