Air-cooled hydraulic cylinder
By designing an air-cooled chamber and symmetrically arranged air-cooled holes in the hydraulic cylinder, using air to dissipate heat, the aging and oil leakage caused by heat accumulation of hydraulic cylinders is solved, and the service life and safety are improved.
Patent Information
- Application Number
- CN202421965864.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-08-14
AI Technical Summary
The hydraulic cylinder generates heat due to mechanical friction, which causes the parts to age, short service life, easy oil leakage, and increase the risk of accidents.
An air-cooled hydraulic cylinder is designed, and air-cooled air-cooled chamber and air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air-cooled air
It improves the heat dissipation performance of the hydraulic cylinder, extends the service life, reduces the probability of oil leakage, and reduces the risk of accidents.
Smart Images
Figure CN222633549U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an air-cooled hydraulic cylinder and belongs to the technical field of hydraulic cylinders. Background Art
[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. 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. When the hydraulic cylinder is working, heat is generated due to mechanical friction. As the heat accumulates, the aging of parts such as the piston is accelerated. The hydraulic cylinder has a relatively short service life and is prone to oil leakage and accidents. Utility Model Content
[0003] The utility model aims to provide an air-cooled hydraulic cylinder, which can improve the heat dissipation performance of the hydraulic cylinder, prolong the service life of the hydraulic cylinder, reduce the probability of oil leakage, and solve the problems existing in the background technology.
[0004] The technical solution of the utility model is:
[0005] A kind of air-cooled hydraulic cylinder comprises a front end cover, an outer cylinder, an output end plate, a piston rod, an inner cylinder, a piston, a rear end cover, an oil pipe joint, an air-cooling hole and a sealing plate. An air-cooling chamber is formed between the front end cover, the outer cylinder, the inner cylinder and the rear end cover. The piston rod and the piston are arranged in the inner cylinder. The front end cover is provided with an oil pipe joint extending to the inner cylinder. The piston rod passes through the front end cover and is connected with the output end plate. A sealing plate is provided on the output end plate. The sealing plate is provided with two symmetrically arranged air-cooling holes connected with the air-cooling chamber.
[0006] The sealing plate has two symmetrically arranged air cooling holes connected to the air cooling chamber, one of which is an air inlet hole and the other is an air outlet hole.
[0007] A dust cover is provided at the connection between the outer cylinder and the front end cover, and a guide cover matched with the piston rod is provided on the dust cover.
[0008] A plurality of sealing rings are arranged between the guide sleeve and the piston rod.
[0009] A protective sleeve and a sealing sleeve are arranged between the outer cylinder and the inner cylinder. The sealing sleeve is sleeved on the inner cylinder, and the protective sleeve is sleeved on the sealing sleeve.
[0010] The beneficial effects of the utility model are as follows: compressed air enters the air cooling chamber through the air cooling hole and the sealing plate to contact the cylinder body for air cooling, thereby improving the heat dissipation performance of the hydraulic cylinder, extending the service life of the hydraulic cylinder, reducing the probability of oil leakage, and being less likely to cause accidents. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a cross-sectional view of the utility model;
[0012] Figure 2 It is a top view of the utility model;
[0013] Figure 3 It is a partial diagram of the utility model.
[0014] In the figure: 1. front end cover; 2. outer cylinder; 3. dust cover; 4. long bolt; 5. output end plate; 6. sealing ring; 7. guide sleeve; 8. piston rod; 9. inner cylinder; 10. sealing sleeve; 11. protective sleeve; 12. piston; 13. rear end cover; 14. screw seat; 15. screw; 16. fixing hook; 17. handle rod; 18. side plate; 19. oil pipe joint; 20. shaft rod; 21. air cooling hole; 22. sealing plate. DETAILED DESCRIPTION
[0015] The present invention will be further described below by way of examples with reference to the accompanying drawings.
[0016] See attached Figure 1-3 A wind-cooled hydraulic cylinder comprises a front end cover 1, an outer cylinder 2, an output end plate 5, a piston rod 8, an inner cylinder 9, a piston 12, a rear end cover 13, an oil pipe joint 19, an air-cooling hole 21 and a sealing plate 22. An air-cooling chamber is formed between the front end cover 1, the outer cylinder 2, the inner cylinder 9 and the rear end cover 13. The piston rod 8 and the piston 12 are arranged in the inner cylinder 9. The front end cover 1 is provided with an oil pipe joint 19 extending to the inner cylinder 9. The piston rod 8 passes through the front end cover 1 and is connected to the output end plate 5. The output end plate 5 is provided with a sealing plate 22. The sealing plate 22 is provided with two symmetrically arranged air-cooling holes 21 connected to the air-cooling chamber.
[0017] In this example, refer to the attached Figure 1-3 The air-cooled hydraulic cylinder body is composed of a front end cover 1, an outer cylinder 2, an inner cylinder 9 and a rear end cover 13. The inner cylinder 9 is arranged inside the outer cylinder 2. The rear end of the piston rod 8 is fixedly connected to a piston 12 which is slidably connected to the inner cylinder 9. The bottom end of the outer cylinder 2 is fixedly provided with a rear end cover 13 for closing the inner cylinder 9. The top of the outer cylinder 2 is provided with a front end cover 1, and the bottom of the front end cover 1 is fixedly connected to the outer cylinder 2. The inner side of the connection between the outer cylinder 2 and the front end cover 1 is fixedly connected with a dust cover 3, and the middle part of the dust cover 3 is fixedly provided with a guide sleeve 7. The piston rod 8 which passes through the front end cover 1 is slidably connected inside the guide sleeve 7. The front end of the piston rod 8 is fixedly connected with an output end plate 5, and the outer side of the output end plate 5 is provided with a sealing plate 22. The sealing plate 22 is provided with two symmetrical air-cooling holes 21, one is an air inlet hole, and the other is an air outlet hole.
[0018] An oil pipe joint 19 extending to the inner cylinder 9 is fixedly mounted on the front end cover 1. The oil pipe joint 19 is connected to the oil pipe, and the piston rod 8 is driven to extend and retract through the piston 12, thereby driving the output end plate 5 to move. The air cooling hole 21 is connected to the compressed air delivery pipe. The compressed air passes through the air cooling hole 21, passes through the sealing plate 22 and contacts the cylinder body at the same time, for air cooling, and the air circulates.
[0019] A protective sleeve 11 and a sealing sleeve 10 are provided between the outer cylinder 2 and the inner cylinder 9. The sealing sleeve 10 is located on the surface of the inner cylinder 9, and the protective sleeve 11 is located on the surface of the sealing sleeve 10. The sealing sleeve 10 performs sealing, and the protective sleeve 11 plays a protective role.
[0020] A plurality of sealing rings 6 are arranged between the guide sleeve 7 and the piston rod 8 to play a sealing role.
[0021] Four long bolts 4 are provided on the sealing plate 22 . The four long bolts 4 pass through the front end cover 1 and extend to the inside of the outer cylinder 2 , so as to be used for installing and fixing the sealing plate 22 .
[0022] Both ends of the front end cover 1 are provided with shafts 20, and both ends of the two shafts 20 are installed with fixing hooks 16, and handle rods 17 are fixedly provided on the fixing hooks 16. The fixing hooks 16 are rotated by the handle rods 17, and the fixing hooks 16 are rotated through the shafts 20, and the fixing hooks 16 are used to fix the hydraulic cylinder.
[0023] Two screw seats 14 are fixedly connected to one side of the front end cover 1 , and the two screw seats 14 are both threadedly connected with screws 15 , and the two screw seats 14 are fixedly connected to side plates 18 via the screws 15 .
[0024] When in use, the oil pipe joint 19 is connected to the oil pipe, and the piston 12 drives the piston rod 8 to extend and retract. Multiple sealing rings 6 play a sealing role, thereby driving the output end plate 5 to move. The compressed air passes through the air-cooling hole 21 and the sealing plate 22 and contacts the cylinder body at the same time for air cooling, and the air circulates. The rear end cover 13 is used to close the inner cylinder 9. The fixing hook 16 is rotated by the handle rod 17. The fixing hook 16 is rotated by the shaft rod 20. The fixing hook 16 is used to fix the hydraulic cylinder. A sealing sleeve 10 and a protective sleeve 11 are provided between the outer cylinder 2 and the inner cylinder 9. The sealing sleeve 10 is sealed, the protective sleeve 11 plays a protective role, the dustproof sleeve 3 plays a dustproof role, and the guide sleeve 7 guides the movement of the piston rod 8.
Claims
1. An air-cooled hydraulic cylinder, characterized in that: The invention comprises a front end cover (1), an outer cylinder (2), an output end plate (5), a piston rod (8), an inner cylinder (9), a piston (12), a rear end cover (13), an oil pipe joint (19), an air cooling hole (21) and a sealing plate (22); an air cooling chamber is formed between the front end cover (1), the outer cylinder (2), the inner cylinder (9) and the rear end cover (13); the piston rod (8) and the piston (12) are arranged in the inner cylinder (9); the front end cover (1) is provided with an oil pipe joint (19) extending to the inner cylinder (9); the piston rod (8) passes through the front end cover (1) and is connected to the output end plate (5); the output end plate (5) is provided with a sealing plate (22); and the sealing plate (22) is provided with two symmetrically arranged air cooling holes (21) connected to the air cooling chamber.
2. The air-cooled hydraulic cylinder according to claim 1, characterized in that: The sealing plate (22) has two symmetrically arranged air cooling holes (21) in communication with the air cooling chamber, one of which is an air inlet hole and the other is an air outlet hole.
3. The air-cooled hydraulic cylinder according to claim 1, characterized in that: A dust cover (3) is provided at the connection between the outer cylinder (2) and the front end cover (1), and a guide sleeve (7) matching with the piston rod (8) is provided on the dust cover (3).
4. The air-cooled hydraulic cylinder according to claim 3, characterized in that: A plurality of sealing rings (6) are provided between the guide sleeve (7) and the piston rod (8).
5. The air-cooled hydraulic cylinder according to claim 1, characterized in that: A protective sleeve (11) and a sealing sleeve (10) are provided between the outer cylinder (2) and the inner cylinder (9); the sealing sleeve (10) is sleeved on the inner cylinder (9), and the protective sleeve (11) is sleeved on the sealing sleeve (10).