Water cooling cylinder with sealing monitoring function
By using high-temperature seals and water-cooling devices in the oil cylinder to cool the cylinder block and seal assembly, the problem of seal failure in high-temperature environment is solved, and the reliability monitoring and leakage detection of seal assembly is realized to ensure the safety of the device.
Patent Information
- Application Number
- CN202421900410.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-08-07
AI Technical Summary
Existing oil cylinders are easily sealed in high temperature environments, resulting in oil leakage and affecting the reliability of use.
High-temperature seals and water-cooled cooling devices are used to cool the cylinder and sealing components through the cooling chamber, and a seal monitoring device is set to monitor leakage in real time.
Effectively reduce the probability of failure of sealed components in high temperature environments, ensure the reliability of the device, and promptly detect leakage to prevent dangers caused by oil leakage.
Smart Images
Figure CN223203366U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of executive elements, in particular to a water-cooled cylinder with sealing monitoring function. Background Art
[0002] In some application environments with channels, it is necessary to use a cylinder to drive the regulating piece to change the size and direction of the airflow to obtain the required test airflow; and if there is a high-temperature area in the channel, and the temperature is relatively high, such as reaching about 300°C, the seal of the cylinder is likely to fail, resulting in oil leakage and causing open flames.
[0003] The oil cylinder's temperature resistance and leakage prevention become difficulties in its use in this application environment. Therefore, it is necessary to design an actuator that can meet high temperature environments and detect leakage to be suitable for this working condition. Utility Model Content
[0004] The technical problem to be solved by the present invention is: in order to solve the technical problems in the prior art, the present invention provides a water-cooled cylinder with seal monitoring, which meets high-temperature working conditions by adopting high-temperature seals and adding a water-cooling cooling device; at the same time, residual oil is taken away by water cooling, and a seal monitoring device is added to monitor the external leakage in real time to ensure the reliability of the device.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a water-cooled cylinder with sealing monitoring, comprising a cylinder body, a cooling cavity formed in the side wall of the cylinder body, a cooling port connected to the cooling cavity is opened on the cylinder body, so that a cooling medium can be input into the cooling cavity via the cooling port, or the cooling medium in the cooling cavity can be output; a piston rod, the piston rod is inserted into the cylinder body and can move relative to the cylinder body along its own axial direction; a sealing assembly, the sealing assembly is connected to the cylinder body, and the sealing assembly is arranged between the piston rod and the cylinder body; a sealed cold cavity connected to the cooling cavity is also provided in the cylinder body, and the sealed cold cavity covers at least part of the sealing assembly along the radial direction of the cylinder body, so that the sealed cold cavity can cool the sealing assembly.
[0006] The water-cooled cylinder with seal monitoring of the present invention cools the cylinder body and the seal assembly simultaneously through the cooling cavity, thereby reducing the possibility of failure of the seal assembly in a high-temperature environment.
[0007] Furthermore, the sealing assembly includes a first guide sleeve, a second guide sleeve, a first seal and a second seal, the first guide sleeve and the second guide sleeve are both sleeved on the piston rod, the first seal is arranged between the first guide sleeve and the piston rod, and the second seal is arranged between the second guide sleeve and the piston rod; an installation cavity is provided in the cylinder body, the first guide sleeve and the second guide sleeve are both inserted into the installation cavity, and the first guide sleeve and the second guide sleeve are both connected to the cylinder body.
[0008] Furthermore, the sealed cold chamber includes a first sealed cold chamber and a second sealed cold chamber. The first sealed cold chamber is formed between the first guide sleeve, the second guide sleeve and the inner wall of the installation chamber. The second sealed cold chamber is formed between the second guide sleeve and the piston rod. The second sealed cold chamber is located between the first sealing member and the second sealing member. The first sealed cold chamber is connected to the second sealed cold chamber through a first communicating hole.
[0009] Furthermore, a second communicating hole is provided on the cylinder body, one end of the second communicating hole is communicated with the cooling cavity, and the other end of the second communicating hole is communicated with the first sealed cold cavity.
[0010] Furthermore, the cooling port includes a first cooling port and a second cooling port, the first cooling port is communicated with the cooling cavity, and the second cooling port is communicated with the first sealed cooling cavity, so that the cooling medium needs to pass through the cooling cavity and the first sealed cooling cavity before being discharged.
[0011] Furthermore, the first sealing component includes a first waterproof ring, a first rod oil sealing ring and a second rod oil sealing ring. The first waterproof ring, the first rod oil sealing ring and the second rod oil sealing ring are all arranged between the first guide sleeve and the piston rod. The first waterproof ring, the first rod oil sealing ring and the second rod oil sealing ring are arranged in sequence along the direction of the second guide sleeve toward the first guide sleeve.
[0012] Furthermore, the second sealing member includes a dust ring, a second waterproof ring and a third waterproof ring, and the dust ring, the second waterproof ring and the third waterproof ring are all arranged between the second guide sleeve and the piston rod, and the dust ring, the second waterproof ring and the third waterproof ring are arranged in sequence along the direction of the second guide sleeve toward the first guide sleeve.
[0013] Furthermore, a leakage monitoring port is provided between the sealing assembly and the piston rod, and the leakage monitoring port is connected to a liquid level bottle to monitor the leakage amount of the sealing assembly.
[0014] Furthermore, an oil-proof static seal is provided between the first guide sleeve and the cylinder body.
[0015] Furthermore, a waterproof static seal is provided between the second guide sleeve and the cylinder body.
[0016] The beneficial effects of the present invention are:
[0017] 1. The cooling cavity cools the cylinder body and the sealing assembly at the same time, reducing the possibility of failure of the sealing assembly in a high temperature environment;
[0018] 2. Connect the liquid level bottle through the leak detection port to detect whether there is any cooling medium leakage, and then determine whether the sealing component is damaged;
[0019] 3. The cooling medium is introduced into the first sealed cold chamber and the second sealed cold chamber, which can not only cool the sealing components and guide parts, but also take away the oil film to prevent the accumulation of hydraulic oil and pollution to the use environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Figure 1 It is a schematic diagram of the overall structure of the water-cooled cylinder with sealing monitoring in the utility model.
[0022] Figure 2 yes Figure 2 A partial enlarged view of part A in the middle.
[0023] In the figure: 1. cylinder body; 11. oil chamber; 111. first oil port; 112. second oil port; 12. first sealed cold chamber; 13. second sealed cold chamber; 14. first communicating hole; 15. second communicating hole; 16. cooling chamber; 17. first cold port; 18. second cold port; 19. mounting chamber; 191. limiting step; 2. piston rod; 21. piston head; 3. first guide sleeve; 31. limiting ring; 311. through groove; 4. second guide sleeve; 5. first sealing element; 51. first waterproof ring; 52. first rod oil sealing ring; 53. second rod oil sealing ring; 54. oil-proof static seal; 55. first sealing ring groove; 6. second sealing element; 61. dustproof ring; 62. second waterproof ring; 63. third waterproof ring; 64. leakage monitoring port; 65. waterproof static seal; 66. second sealing ring groove. DETAILED DESCRIPTION
[0024] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.
[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0026] The utility model discloses a water-cooling cylinder with sealing monitoring function.
[0027] Reference Figure 1 and Figure 2 A water-cooled cylinder with seal monitoring includes a cylinder body 1 and a piston rod 2. An oil chamber 11 is formed in the cylinder body 1. The piston rod 2 is inserted into the oil chamber 11 and can move relative to the cylinder body 1 along its own axial direction. A first oil port 111 and a second oil port 112 are provided on the cylinder body 1. The first oil port 111 and the second oil port 112 are both connected to the oil chamber 11 so that hydraulic oil can be input into the oil chamber 11 through the first oil port 111 or the second oil port 112, or hydraulic oil can be output from the oil chamber 11. A piston head 21 is fixedly connected to the piston rod 2. After the oil enters the oil chamber 11 from the first oil port 111 or the second oil port 112, it pushes the piston head 21 to move to drive the piston rod 2 to move along its own axial direction.
[0028] In this embodiment of the water-cooled cylinder with seal monitoring, a cooling chamber 16 is formed in the sidewall of the cylinder body 1. A cooling port is provided in the cylinder body 1, communicating with the cooling chamber 16. This allows for the input and output of cooling medium into and out of the cooling chamber 16 via the cooling port. A sealing assembly is provided between the cylinder body 1 and the piston rod 2, which is used to form a seal between the piston rod 2 and the cylinder body 1. Furthermore, a sealed cold chamber is provided in the cylinder body 1, communicating with the cooling chamber 16. The sealed cold chamber covers at least a portion of the sealing assembly along the radial direction of the cylinder body 1, enabling the sealed cold chamber to cool the sealing assembly.
[0029] Specifically, the sealing assembly includes a first guide sleeve 3, a second guide sleeve 4, a first seal 5, and a second seal 6. The first guide sleeve 3 and the second guide sleeve 4 are both sleeved on the piston rod 2. The first seal 5 is disposed between the first guide sleeve 3 and the piston rod 2, and the second seal 6 is disposed between the second guide sleeve 4 and the piston rod 2. A mounting cavity 19 is defined within the cylinder body 1. The first guide sleeve 3 and the second guide sleeve 4 are both inserted into the mounting cavity 19 and are both connected to the cylinder body 1.
[0030] More specifically, the sealed cold chamber includes a first sealed cold chamber 12 and a second sealed cold chamber 13. The first sealed cold chamber 12 is formed between the first guide sleeve 3, the second guide sleeve 4, and the inner wall of the mounting chamber 19. A second communicating hole 15 is provided in the cylinder body 1. One end of the second communicating hole 15 communicates with the cooling chamber 16, and the other end communicates with the first sealed cold chamber 12 within the mounting chamber 19. A second sealed cold chamber 13 is formed between the second guide sleeve 4 and the piston rod 2. The second sealed cold chamber 13 is located between the first seal 5 and the second seal 6. The first sealed cold chamber 12 communicates with the second sealed cold chamber 13 through a first communicating hole 14. Multiple first communicating holes 14 are provided along the circumference of the second guide sleeve 4. The cooling ports include a first cold port 17 and a second cold port 18. The first cold port 17 communicates with the cooling chamber 16, and the second cold port 18 communicates with the first sealed cold chamber 12, allowing the cooling medium to pass through the cooling chamber 16, the first sealed cold chamber 12, and the second sealed cold chamber 13. The cooling medium flowing into the first sealed cold chamber 12 and the second sealed cold chamber 13 not only cools the sealing assembly and guide parts but also removes the oil film, preventing hydraulic oil accumulation and pollution of the operating environment. The cooling medium in the cooling chamber 16, the first sealed cold chamber 12, and the second sealed cold chamber 13 can be cooling water.
[0031] When the cooling medium is working, a lower cold port is set as the inlet of the cooling medium so that the cooling medium can fully cool the cylinder body 1 and the sealing assembly. That is, if the height of the first cold port 17 is lower than the height of the second cold port 18, the cooling medium enters from the first cold port 17; if the height of the second cold port 18 is lower than the height of the first cold port 17, the cooling medium enters from the second cold port 18. When the cooling medium enters from the first cold port 17, the cooling medium first enters the cooling cavity 16, then enters the first sealed cold cavity 12 and the second sealed cold cavity 13, and finally flows out from the second cold port 18, completing the cooling cycle. When the cooling medium enters from the second cold port 18, the cooling medium first enters the first sealed cold cavity 12 and the second sealed cold cavity 13, then enters the cooling cavity 16, and finally flows out from the first cold port 17, completing the cooling cycle.
[0032] Specifically, the first sealing element 5 includes a first waterproof ring 51, a first rod oil sealing ring 52, and a second rod oil sealing ring 53. These rings are all positioned between the first guide sleeve 3 and the piston rod 2. These rings are arranged sequentially from the second guide sleeve 4 toward the first guide sleeve 3. Three first sealing ring grooves 55 are defined on the inner wall of the first guide sleeve 3 to accommodate the first waterproof ring 51, the first rod oil sealing ring 52, and the second rod oil sealing ring 53. The first waterproof ring 51 is used to prevent the coolant in the second sealed cold chamber 13 from entering the oil chamber 11. The second rod oil sealing ring 53 is used for primary oil pressure sealing, while the first rod oil sealing ring 52 is used for secondary oil pressure sealing, thereby separating the oil chamber from the cooling chamber.
[0033] The second sealing member 6 includes a dust ring 61, a second waterproof ring 62, and a third waterproof ring 63. These three rings are positioned between the second guide sleeve 4 and the piston rod 2, and are arranged sequentially from the second guide sleeve 4 toward the first guide sleeve 3. Three second sealing ring grooves 66 are defined on the inner wall of the second guide sleeve 4 to accommodate the dust ring 61, the second waterproof ring 62, and the third waterproof ring 63. The dust ring 61 prevents dust and foreign matter from entering the cylinder body 1. The third waterproof ring 63 provides primary waterproofing for the second sealed cold chamber 13, and the second waterproof ring 62 provides secondary waterproofing for the second sealed cold chamber 13.
[0034] A leakage detection port is provided between the sealing assembly and the piston rod. In this embodiment, the leakage detection port 64 is provided on the second guide sleeve 4. One end of the leakage detection port 64 communicates with the inner hole of the second guide sleeve 4, and the other end is connected to a liquid level bottle. The leakage detection port is located between the second waterproof ring 62 and the third waterproof ring 63. The leakage detection port can monitor the amount of leakage through the liquid level bottle and thus detect whether the sealing assembly has failed due to high temperature.
[0035] In addition, an oil-proof static seal 54 is provided between the first guide sleeve 3 and the cylinder body 1. The oil-proof static seal 54 is used to prevent the oil in the oil chamber 11 from mixing with the cooling medium in the first sealed cold chamber 12. A waterproof static seal 65 is provided between the second guide sleeve 4 and the cylinder body 1. The waterproof static seal 65 is used to prevent the cooling medium in the second sealed cold chamber 13 from leaking.
[0036] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. A water-cooled cylinder with sealing monitoring, characterized in that: include A cylinder body (1), a cooling cavity (16) is formed in a side wall of the cylinder body (1), and a cooling port is provided on the cylinder body (1) and is communicated with the cooling cavity (16), so that a cooling medium can be input into the cooling cavity (16) or the cooling medium in the cooling cavity (16) can be output through the cooling port; A piston rod (2), the piston rod (2) being inserted into the cylinder body (1) and being capable of moving relative to the cylinder body (1) along its own axial direction; A sealing assembly, the sealing assembly being connected to the cylinder body (1), the sealing assembly being arranged between the piston rod (2) and the cylinder body (1); A sealed cold cavity in communication with the cooling cavity (16) is further provided in the cylinder body (1), and the sealed cold cavity covers at least a portion of the sealing component in the radial direction of the cylinder body (1), so that the sealed cold cavity can cool the sealing component.
2. The water-cooled cylinder with sealing monitoring according to claim 1, characterized in that: The sealing assembly comprises a first guide sleeve (3), a second guide sleeve (4), a first sealing member (5) and a second sealing member (6); the first guide sleeve (3) and the second guide sleeve (4) are both sleeved on the piston rod (2); the first sealing member (5) is arranged between the first guide sleeve (3) and the piston rod (2); and the second sealing member (6) is arranged between the second guide sleeve (4) and the piston rod (2); The cylinder body (1) is provided with a mounting cavity (19), the first guide sleeve (3) and the second guide sleeve (4) are both inserted into the mounting cavity (19), and the first guide sleeve (3) and the second guide sleeve (4) are both connected to the cylinder body (1).
3. The water-cooled cylinder with sealing monitoring according to claim 2, characterized in that: The sealed cold chamber comprises a first sealed cold chamber (12) and a second sealed cold chamber (13); the first sealed cold chamber (12) is formed between the first guide sleeve (3), the second guide sleeve (4) and the inner wall of the mounting chamber (19); the second sealed cold chamber (13) is formed between the second guide sleeve (4) and the piston rod (2); the second sealed cold chamber (13) is located between the first sealing member (5) and the second sealing member (6); the first sealed cold chamber (12) is communicated with the second sealed cold chamber (13) through a first communicating hole (14).
4. The water-cooled cylinder with sealing monitoring according to claim 3, characterized in that: A second communicating hole (15) is provided on the cylinder body (1), one end of the second communicating hole (15) is communicated with the cooling cavity (16), and the other end is communicated with the first sealed cold cavity (12).
5. The water-cooled cylinder with sealing monitoring according to claim 4, characterized in that: The cooling port comprises a first cooling port (17) and a second cooling port (18), wherein the first cooling port (17) is communicated with the cooling cavity (16), and the second cooling port (18) is communicated with the first sealed cooling cavity (12), so that the cooling medium needs to pass through the cooling cavity (16) and the first sealed cooling cavity (12) before being discharged.
6. The water-cooled cylinder with sealing monitoring according to claim 5, characterized in that: The first sealing member (5) comprises a first waterproof ring (51), a first rod oil sealing ring (52) and a second rod oil sealing ring (53); the first waterproof ring (51), the first rod oil sealing ring (52) and the second rod oil sealing ring (53) are all arranged between the first guide sleeve (3) and the piston rod (2); the first waterproof ring (51), the first rod oil sealing ring (52) and the second rod oil sealing ring (53) are arranged in sequence along the second guide sleeve (4) in a direction toward the first guide sleeve (3).
7. The water-cooled cylinder with sealing monitoring according to claim 6, characterized in that: The second sealing member (6) comprises a dustproof ring (61), a second waterproof ring (62) and a third waterproof ring (63); the dustproof ring (61), the second waterproof ring (62) and the third waterproof ring (63) are all arranged between the second guide sleeve (4) and the piston rod (2); the dustproof ring (61), the second waterproof ring (62) and the third waterproof ring (63) are arranged in sequence along the direction from the second guide sleeve (4) to the first guide sleeve (3).
8. The water-cooled cylinder with sealing monitoring according to claim 1, characterized in that: A leakage monitoring port (64) is provided between the sealing assembly and the piston rod (2), and the leakage monitoring port (64) is connected to a liquid level bottle to monitor the leakage amount of the sealing assembly.
9. The water-cooled cylinder with sealing monitoring according to claim 2, characterized in that: An oil-proof static seal (54) is provided between the first guide sleeve (3) and the cylinder body (1).
10. The water-cooled cylinder with sealing monitoring according to claim 2, characterized in that: A waterproof static seal (65) is provided between the second guide sleeve (4) and the cylinder body (1).