Power cabin supporting oil cylinder

Abstract

The engine compartment supporting oil cylinder comprises a cylinder barrel, a piston rod, a piston, a sealing device and a supporting device, the cylinder barrel is transversely arranged left and right, a cylinder bottom is arranged at the left end of the cylinder barrel, a cylinder cover is arranged on the inner circumference of the right end of the cylinder barrel, the piston is installed on the outer circumference of the tail side of the left end of the piston rod, and the piston rod is arranged on the inner circumference of the cylinder barrel and the inner circumference of the cylinder cover. The sealing device comprises a first sealing device arranged between the inner circumference of the piston and the piston rod and a second sealing device arranged between the outer circumference of the cylinder cover and the cylinder barrel; the supporting device comprises a first supporting device arranged between the outer periphery of the piston and the cylinder barrel and a second supporting device arranged between the inner periphery of the cylinder cover and the piston rod, the first supporting device is used for guiding the piston and sealing the piston and the cylinder barrel, and the second supporting device is used for guiding the piston rod and sealing the cylinder cover and the piston rod. According to the utility model, stable sealing, accurate movement, reliable buffering, stable installation and high-pressure adaptation in a power cabin environment are realized.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a power compartment support cylinder. Background Technology

[0002] In the field of existing hydraulic cylinder technology, hydraulic cylinders are widely used in various mechanical equipment, including power compartment-related equipment. However, traditional hydraulic cylinders have many problems that limit their application effectiveness in complex environments such as power compartments.

[0003] In terms of sealing, many traditional hydraulic cylinders have relatively simple sealing structures, relying on only a single seal, which is insufficient to cope with the complex operating conditions and pressure changes within the power compartment. This leads to hydraulic oil leakage during long-term use, not only wasting energy but also potentially affecting the normal operation of the equipment and even causing safety accidents. For example, in some high-temperature, high-pressure, and frequently vibrating power compartment environments, seals are prone to aging and wear, leading to seal failure.

[0004] In terms of support structure, traditional hydraulic cylinders do not provide stable and precise support for the piston and piston rod. This makes the piston and piston rod prone to wobbling or misalignment during operation, affecting the working accuracy of the cylinder and reducing the overall performance of the equipment. For example, in power compartment equipment requiring high-precision control, the support problems of traditional hydraulic cylinders can lead to unstable equipment operation and failure to meet production process requirements.

[0005] Furthermore, traditional hydraulic cylinders mostly lack effective cushioning designs. During rapid piston rod movement, significant impact forces are easily generated between the piston and the cylinder bottom, which can lead to fatigue damage to cylinder components over time, shortening the cylinder's lifespan. Moreover, traditional hydraulic cylinders are not flexible or stable enough in their installation and fixing methods, making them difficult to adapt to the complex spatial layout and vibration environment of the power compartment. Additionally, insufficient cylinder strength makes them prone to deformation under high pressure, further affecting the cylinder's performance and reliability. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a power compartment support cylinder. It features a simple structure, optimized sealing and support structures, an added buffer design, improved installation and fixing methods, and enhanced cylinder strength. This achieves stable sealing, precise movement, reliable buffering, secure installation, and high-pressure adaptability in a power compartment environment, effectively improving equipment operating performance and reliability.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a power compartment support cylinder, comprising a cylinder barrel, a piston rod, a piston, a sealing device, and a support device. The cylinder barrel is arranged laterally, with a cylinder bottom at its left end and a cylinder cover at its right inner circumference. The piston is mounted on the outer circumference of the left end of the piston rod. The piston rod is disposed on the inner circumference of the cylinder barrel and the cylinder cover and can move left and right relative to the cylinder barrel. The sealing device includes a first sealing device disposed between the inner circumference of the piston and the piston rod, and a second sealing device disposed between the outer circumference of the cylinder cover and the cylinder barrel. The first sealing device is used to seal between the inner circumference of the piston and the piston rod, and the second sealing device is used to seal between the outer circumference of the cylinder cover and the cylinder barrel. The support device includes a first support device disposed between the outer circumference of the piston and the cylinder barrel, and a second support device disposed between the inner circumference of the cylinder cover and the piston rod. The first support device is used to guide the piston and seal between the piston and the cylinder barrel, and the second support device is used to guide the piston rod and seal between the cylinder cover and the piston rod.

[0008] As a further explanation of this technical solution:

[0009] Preferably, the cylinder head is connected to the cylinder barrel by screws evenly distributed around the outer periphery of the cylinder head. The cylinder bottom matches the shape of the cylinder barrel and is welded to the left end of the cylinder barrel. The right end of the cylinder bottom is provided with a buffer hole recessed to the left. The upper middle part of the cylinder bottom is provided with a first oil hole that penetrates the cylinder bottom and communicates with the buffer hole. The left end of the cylinder head on the upper right side of the cylinder barrel is provided with a second oil hole that penetrates the cylinder barrel. The first oil hole and the second oil hole cooperate with each other to allow hydraulic oil to enter and exit the inner periphery of the cylinder barrel, so that the piston rod moves left and right relative to the cylinder barrel.

[0010] Preferably, the left end of the piston is provided with a buffer block whose shape matches the buffer hole, which is used to buffer the piston when the piston rod moves to the left.

[0011] Preferably, the cylinder head is shaped to match the cylinder barrel and includes a first structural part, a second structural part, and a third structural part from right to left. The diameter of the outer periphery of the second structural part is larger than the diameter of the outer periphery of the third structural part and smaller than the diameter of the outer periphery of the first structural part. The first structural part is connected to the right end of the cylinder barrel by screws evenly distributed on its outer periphery. The second and third structural parts are attached to the inner periphery of the cylinder barrel.

[0012] Preferably, the first sealing device includes first O-rings located on the left and right sides of the inner circumference of the piston and fitted onto the outer circumference of the piston rod; the second sealing device includes second O-rings fitted onto the left and right sides of the middle part of the outer circumference of the third structural part; the first support device includes, from right to left, a piston bidirectional sealing strip, a piston sealing ring, and a third O-ring disposed on the outer circumference of the piston; the second support device includes, from right to left, a first piston rod sealing ring, a piston rod support ring, a second piston rod sealing ring, and a piston rod guide strip disposed on the inner circumference of the cylinder head; and a dustproof ring is also provided at the right end of the first piston rod sealing ring.

[0013] Preferably, a fixing flange is provided on the outer periphery of the right end of the cylinder, and the fixing flange has 6 to 10 flange holes. The fixing flange is used to fix the cylinder to an external mechanism. A reinforcing part is also provided on the outer periphery of the cylinder at the left end of the fixing flange. The reinforcing part is used to improve the overall strength of the cylinder and prevent the cylinder from deforming due to excessive pressure.

[0014] Preferably, the cylinder has a left-right length of 275.0mm to 290.0mm, an outer circumference diameter of 80.0mm to 86.0mm, an inner circumference diameter of 60.0mm to 66.0mm, a piston rod diameter of 42.0mm to 48.0mm, a cylinder bottom left-right length of 65.0mm to 75.0mm, and a cylinder head left-right length of 65.0mm to 75.0mm.

[0015] Preferably, a support portion is connected to the end of the right end of the piston rod. The support portion is used to support external components and has an operating temperature of -25℃ to 50℃.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] Firstly, this utility model employs a unique dual sealing and support device. The first and second sealing devices act between the piston and piston rod, and between the cylinder head and cylinder barrel, respectively, effectively preventing hydraulic oil leakage. The first and second support devices guide and seal between the piston and cylinder barrel, and between the cylinder head and piston rod, respectively, ensuring the stability and precision of the piston and piston rod movement. This enables the hydraulic cylinder to operate stably under the complex pressure environment and high-precision movement requirements of the power compartment, avoiding the oil leakage problems caused by poor sealing in traditional hydraulic cylinders, reducing the risk of equipment failure due to oil leakage, ensuring the stable operation of the hydraulic system in the power compartment, and improving the reliability and service life of the entire system.

[0018] Secondly, the buffer hole at the bottom of the cylinder of this utility model cooperates with the buffer block at the left end of the piston to form an effective buffer structure. When the piston rod moves to the left, the buffer block can enter the buffer hole to buffer the impact force between the piston and the bottom of the cylinder. In environments with frequent start-stop and significant vibration of the power compartment equipment, this buffer design greatly reduces damage to the cylinder itself and other equipment, extends the service life of the equipment, reduces maintenance costs, and ensures the safe operation of the equipment in the power compartment.

[0019] Thirdly, the cylinder head of this utility model is connected to the cylinder barrel by evenly distributed screws, which facilitates subsequent disassembly and maintenance; the fixed flange and multiple flange holes on the outer periphery of the right end of the cylinder barrel facilitate a secure connection with external mechanisms. This design allows the hydraulic cylinder to be installed quickly and stably in the compact space of the power compartment, and it can still maintain a good connection under the vibration environment generated by the operation of the power compartment, providing a reliable guarantee for the stable operation of the equipment in the power compartment.

[0020] Fourthly, the reinforcing section on the outer periphery of the cylinder barrel at the left end of the fixed flange of this utility model effectively improves the overall strength of the cylinder barrel. Under the high-pressure environment generated by the hydraulic system in the power compartment, the reinforcing section can prevent cylinder barrel deformation and ensure the normal operation of the hydraulic cylinder. This design not only expands the applicable pressure range of the hydraulic cylinder, but also improves the safety and reliability of the power compartment system, enabling the hydraulic cylinder to operate stably under various complex working conditions, meeting the high-performance requirements of the power compartment for supporting hydraulic cylinders, effectively solving the problems existing in the prior art, and having extremely high application value in the power compartment environment. It can be widely used in various power compartment equipment, significantly improving the operating performance and reliability of the equipment. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;

[0024] Figure 3 for Figure 1 A magnified structural diagram of part B in the middle section;

[0025] Figure 4 This is a right-side structural diagram of the present invention without the support component connected.

[0026] In the diagram: 1. Cylinder barrel; 2. Piston rod; 3. Piston; 4. Cylinder bottom; 5. Cylinder head; 6. Screw; 7. Buffer hole; 8. First oil hole; 9. Second oil hole; 10. Buffer block; 11. First structural part; 12. Second structural part; 13. Third structural part; 14. First O-ring; 15. Second O-ring; 16. Piston bidirectional sealing strip; 17. Piston sealing ring; 18. Third O-ring; 19. First piston rod sealing ring; 20. Piston rod support ring; 21. Second piston rod sealing ring; 22. Piston rod guide strip; 23. Dustproof ring; 24. Fixed flange; 25. Flange hole; 26. Reinforcing part; 27. Support part. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-4 As shown, this utility model is a power compartment support cylinder, including a cylinder barrel 1, a piston rod 2, a piston 3, a sealing device, and a support device. The cylinder barrel 1 is arranged laterally, with a cylinder bottom 4 at its left end and a cylinder cover 5 on the inner circumference of its right end. The piston 3 is installed on the outer circumference of the left end of the piston rod 2. The piston rod 2 is located on the inner circumference of the cylinder barrel 1 and the cylinder cover 5 and can move left and right relative to the cylinder barrel 1. The sealing device includes a first sealing device disposed between the inner circumference of the piston 3 and the piston rod 2, and a second sealing device disposed between the outer circumference of the cylinder cover 5 and the cylinder barrel 1. The first sealing device is used to seal between the inner circumference of the piston 3 and the piston rod 2, and the second sealing device is used to seal between the outer circumference of the cylinder cover 5 and the cylinder barrel 1. The support device includes a first support device disposed between the outer circumference of the piston 3 and the cylinder barrel 1, and a second support device disposed between the inner circumference of the cylinder cover 5 and the piston rod 2. The first support device is used to guide the piston 3 and seal between the piston 3 and the cylinder barrel 1, and the second support device is used to guide the piston rod 2 and seal between the cylinder cover 5 and the piston rod 2.

[0029] like Figures 1-3 As shown, the cylinder head 5 is connected to the cylinder barrel 1 by screws 6 evenly distributed around the outer periphery of the cylinder head 5. The cylinder bottom 4 of the cylinder barrel 1 matches the shape of the cylinder barrel 1 and is welded to the left end of the cylinder barrel 1. The right end of the cylinder bottom 4 is provided with a buffer hole 7 that is recessed to the left. The upper middle part of the cylinder bottom 4 is provided with a first oil hole 8 that penetrates the cylinder bottom 4 and communicates with the buffer hole 7. The left end of the cylinder head 5 on the upper right side of the cylinder barrel 1 is provided with a second oil hole 9 that penetrates the cylinder barrel 1. The first oil hole 8 and the second oil hole 9 cooperate with each other to allow hydraulic oil to enter and exit the inner periphery of the cylinder barrel 1, so that the piston rod 2 moves left and right relative to the cylinder barrel 1.

[0030] like Figure 1 As shown, the left end of the piston 3 is provided with a buffer block 10, the shape of which matches the buffer hole 7, and is used to buffer the piston 3 when the piston rod 2 moves to the left.

[0031] like Figure 1 , Figure 3As shown, the cylinder head 5 is shaped to match the cylinder barrel 1, and from right to left includes a first structural part 11, a second structural part 12 and a third structural part 13. The outer diameter of the second structural part 12 is larger than the outer diameter of the third structural part and smaller than the outer diameter of the first structural part 11. The first structural part 11 is connected to the right end of the cylinder barrel 1 by screws 6 evenly distributed on its outer circumference. The second structural part 12 and the third structural part 13 are attached to the inner circumference of the cylinder barrel 1.

[0032] like Figures 1-3 As shown, the first sealing device includes a first O-ring 14 located on the left and right sides of the inner circumference of the piston 3 and sleeved on the outer circumference of the piston rod 2. The second sealing device includes a second O-ring 15 sleeved on the left and right sides of the middle part of the outer circumference of the third structural part 13. The first support device includes, from right to left, a piston bidirectional sealing strip 16, a piston sealing ring 17 and a third O-ring 18 disposed on the outer circumference of the piston 3. The second support device includes, from right to left, a first piston rod sealing ring 19, a piston rod support ring 20, a second piston rod sealing ring 21 and a piston rod guide strip 22 disposed on the inner circumference of the cylinder head 5. A dustproof ring 23 is also provided at the right end of the first piston rod sealing ring 19.

[0033] like Figure 1 , Figure 4 As shown, a fixed flange 24 is provided on the outer periphery of the right end of the cylinder 1. The fixed flange 24 has 6 to 10 flange holes 25. In this embodiment, the fixed flange 24 has 8 flange holes 25. The fixed flange 24 is used to fix the cylinder 1 to an external mechanism. A reinforcing part 26 is also provided on the outer periphery of the cylinder 1 at the left end of the fixed flange 24. The reinforcing part 26 is used to improve the overall strength of the cylinder 1 and prevent the cylinder 1 from deforming due to excessive pressure.

[0034] Further, the cylinder barrel 1 has a lateral length of 275.0 mm to 290.0 mm, an outer diameter of 80.0 mm to 86.0 mm, an inner diameter of 60.0 mm to 66.0 mm, a piston rod 2 has a diameter of 42.0 mm to 48.0 mm, a cylinder bottom 4 has a lateral length of 65.0 mm to 75.0 mm, and a cylinder head 5 has a lateral length of 65.0 mm to 75.0 mm. In this embodiment, the cylinder barrel 1 has a lateral length of 283.0 mm, an outer diameter of 83.0 mm, an inner diameter of 63.0 mm, a piston rod 2 has a diameter of 45.0 mm, a cylinder bottom 4 has a lateral length of 70.0 mm, and a cylinder head 5 has a lateral length of 70.0 mm.

[0035] like Figure 1As shown, further, a support portion 27 is connected to the right end of the piston rod 2. The support portion 27 is used to support external components and has an operating temperature of -25℃ to 50℃. In this embodiment, the support portion 27 is rectangular.

[0036] In the description of this application, it should be understood that the terms "left", "right", "up", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic cylinder for supporting a power compartment, characterized in that: The system includes a cylinder, piston rod, piston, sealing device, and support device. The cylinder is arranged laterally, with a cylinder bottom at its left end and a cylinder head at its right inner circumference. The piston is mounted on the outer circumference of the left end of the piston rod. The piston rod is located on the inner circumference of the cylinder and cylinder head and can move left and right relative to the cylinder. The sealing device includes a first sealing device disposed between the inner circumference of the piston and the piston rod, and a second sealing device disposed between the outer circumference of the cylinder head and the cylinder. The first sealing device seals between the inner circumference of the piston and the piston rod, and the second sealing device seals between the outer circumference of the cylinder head and the cylinder. The support device includes a first support device disposed between the outer circumference of the piston and the cylinder, and a second support device disposed between the inner circumference of the cylinder head and the piston rod. The first support device guides the piston and seals between the piston and the cylinder, and the second support device guides the piston rod and seals between the cylinder head and the piston rod.

2. The power compartment support cylinder according to claim 1, characterized in that: The cylinder head is connected to the cylinder barrel by screws evenly distributed around the outer periphery of the cylinder head. The cylinder bottom matches the shape of the cylinder barrel and is welded to the left end of the cylinder barrel. The right end of the cylinder bottom is provided with a buffer hole that is recessed to the left. The upper middle part of the cylinder bottom is provided with a first oil hole that penetrates the cylinder bottom and communicates with the buffer hole. The left end of the cylinder head on the upper right side of the cylinder barrel is provided with a second oil hole that penetrates the cylinder barrel. The first oil hole and the second oil hole cooperate with each other to allow hydraulic oil to enter and exit the inner periphery of the cylinder barrel, so that the piston rod moves left and right relative to the cylinder barrel.

3. The power compartment support cylinder according to claim 2, characterized in that: The piston is provided with a buffer block at its left end, the shape of which matches the buffer hole, and is used to buffer the piston when the piston rod moves to the left.

4. The power compartment support cylinder according to claim 3, characterized in that: The cylinder head is shaped to match the cylinder barrel and includes a first structural part, a second structural part, and a third structural part from right to left. The outer diameter of the second structural part is larger than the outer diameter of the third structural part and smaller than the outer diameter of the first structural part. The first structural part is connected to the right end of the cylinder barrel by screws evenly distributed on its outer periphery. The second and third structural parts are attached to the inner periphery of the cylinder barrel.

5. The power compartment support cylinder according to claim 4, characterized in that: The first sealing device includes first O-rings located on the left and right sides of the inner circumference of the piston and fitted onto the outer circumference of the piston rod. The second sealing device includes second O-rings fitted onto the left and right sides of the middle part of the outer circumference of the third structural part. The first support device includes, from right to left, a piston bidirectional sealing band, a piston sealing ring, and a third O-ring disposed on the outer circumference of the piston. The second support device includes, from right to left, a first piston rod sealing ring, a piston rod support ring, a second piston rod sealing ring, and a piston rod guide band disposed on the inner circumference of the cylinder head. A dustproof ring is also provided at the right end of the first piston rod sealing ring.

6. The power compartment support cylinder according to claim 5, characterized in that: The cylinder is provided with a fixed flange on the outer periphery of the right end. The fixed flange has 6 to 10 flange holes. The fixed flange is used to fix the cylinder to an external mechanism. The cylinder is also provided with a reinforcing part on the outer periphery of the left end of the fixed flange. The reinforcing part is used to improve the overall strength of the cylinder and prevent the cylinder from deforming due to excessive pressure.

7. The power compartment support cylinder according to claim 6, characterized in that: The cylinder has a left-right length of 275.0mm to 290.0mm, an outer circumference diameter of 80.0mm to 86.0mm, an inner circumference diameter of 60.0mm to 66.0mm, a piston rod diameter of 42.0mm to 48.0mm, a cylinder bottom left-right length of 65.0mm to 75.0mm, and a cylinder head left-right length of 65.0mm to 75.0mm.

8. The power compartment support cylinder according to any one of claims 1 to 7, characterized in that: The piston rod is connected to a support at its right end. The support is used to support external components and has an operating temperature of -25℃ to 50℃.

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