Extremely serviceable modular hydrostatic bearing

Abstract

The application relates to a kind of easy-to-maintain modular static pressure supports of extreme working condition resistance, two support bases and two support sliding cores are contained in one of the easy-to-maintain modular static pressure supports;The support sliding core includes a static pressure sliding layer, a static pressure pipeline valve group and a static pressure docking valve block, the static pressure sliding layer and the static pressure docking valve block are fixedly connected, an oil passage is arranged in the static pressure sliding layer, an oil passage is arranged in the static pressure docking valve block, and the oil passages in the static pressure sliding layer and the static pressure docking valve block are communicated, the static pressure pipeline valve group and the oil passage in the static pressure docking valve block are communicated, and the static pressure sliding layer is supplied with oil;The static pressure sliding layer in the support sliding core and the support base form a friction pair, and the static pressure docking valve blocks of the two support sliding cores are connected by a connecting piece.The application effectively solves the key technical difficulties of long-term reliability and easy maintenance of high-load spherical bearing in compact space through structural design and system collaborative innovation.

Description

Technical Field

[0001] This invention relates to the field of hydrostatic bearing technology, and in particular to an easy-to-maintain modular hydrostatic bearing that is resistant to extreme working conditions. Background Technology

[0002] Hydrostatic bearings are used to support vertical loads, ensuring almost no friction when the supported load moves horizontally. They are suitable for applications requiring high precision, sensitivity, and durability in horizontal movement. For example, in tuned mass dampers for wind resistance in super high-rise buildings, when space is limited and the required space for mass block suspension cannot be met, the mass block must be placed directly on the support device. The support device must also have an extremely low coefficient of friction to ensure sensitive start-up under wind loads and to minimize the equivalent frictional damping.

[0003] Chinese patent CN116623822A discloses a spherical hydrostatic bearing tuned mass damping system, installed on a main structure requiring vibration control. The system includes a sliding friction pair, a sliding plate, a spherical hydrostatic bearing sliding support unit, a mass block, a damper, a frequency tuner, a limit buffer, and a sensor. In this system, the mass block supports and connects to the spherical hydrostatic bearing sliding support unit. Utilizing the near-frictionless characteristics of pressure film lubrication on the contact surface, the main structure can still start under micro-vibrations, thereby maximizing the vibration comfort of the main structure. Simultaneously, the near-wear-free characteristics of pressure film lubrication ensure almost no wear under normal operating conditions.

[0004] However, the core of the aforementioned patent is a system-level application of a tuned mass damper (TMD), in which the hydrostatic support is only used as a component in the system to achieve low-friction oscillation, without addressing the modularity and maintainability design of the support device itself. Furthermore, the patent does not include special designs for extreme operating conditions, such as during a sudden earthquake when the hydrostatic oil film has not yet been established, relying solely on the short-term wear resistance of the friction pair materials.

[0005] Hydrostatic bearings typically require electrical power to supply oil and establish a hydrostatic film, resulting in energy consumption and noise. Therefore, when the supported vertical load does not require movement (e.g., in a wind damper under no-wind load), the hydraulic system can be set to inactive to achieve energy savings, emission reduction, and extend system life. However, if a sudden earthquake or extremely high wind load occurs, or if a power outage or hydraulic system failure occurs when operation is required, relative movement may occur between the supported load and the hydrostatic bearing. Therefore, the coefficient of friction and wear of the hydrostatic bearing under extreme conditions must be considered, as well as whether on-site maintenance or replacement is possible after wear occurs.

[0006] In summary, existing hydrostatic bearing devices have failed to effectively solve the specific technical problem of long-term reliability and ease of on-site maintenance of high-load spherical bearings in compact spaces. Summary of the Invention

[0007] Given the current lack of hydrostatic bearing devices that can effectively address the long-term reliability and maintainability of high-load spherical bearings in compact spaces, this invention provides a maintainable modular hydrostatic bearing that can withstand extreme working conditions.

[0008] This invention effectively solves the key technical challenges of long-term reliability and maintainability of high-load-bearing spherical supports in compact spaces through structural design, material selection, and collaborative innovation of the system.

[0009] The modular hydrostatic bearing provided by this invention is easy to maintain and resistant to extreme working conditions. Its relative sliding friction pair uses materials with low friction coefficient and low wear, which enables the bearing load to safely and reliably complete basic movement even under extreme working conditions.

[0010] The present invention provides an easy-to-maintain modular hydrostatic bearing resistant to extreme working conditions. It features a highly integrated and easy-to-maintain hydrostatic pipeline valve assembly, and also includes a monitoring device capable of real-time monitoring to determine whether the hydrostatic bearing's condition meets requirements. When an abnormality is detected, its modular design allows for easy maintenance and replacement even in compact spaces.

[0011] The objective of this invention can be achieved through the following technical solutions: This invention provides an easy-to-maintain modular hydrostatic bearing resistant to extreme working conditions, which consists of a support base, a support sliding core, and connecting parts; One of the aforementioned easy-to-maintain modular hydrostatic bearings contains two support bases and two support sliding cores; The supporting sliding core includes a hydrostatic sliding layer, a hydrostatic pipeline valve assembly, and a hydrostatic docking valve block. The static pressure sliding layer is fixedly connected to the static pressure docking valve block. An oil passage is provided in the static pressure sliding layer, an oil passage is provided in the static pressure docking valve block, and the oil passages in the static pressure sliding layer and the static pressure docking valve block are connected. The static pressure pipeline valve group is connected to the oil passages in the static pressure docking valve block and is used to supply oil to the static pressure sliding layer. The hydrostatic sliding layer in the support sliding core forms a friction pair with the support base, and the hydrostatic docking valve blocks of the two support sliding cores are connected by a connector.

[0012] In this application, the supporting sliding core adopts a hydrostatic sliding layer structure. The hydrostatic sliding layer serves two purposes: firstly, it integrates hydraulic oil, and secondly, it is a key structure constituting the sliding friction pair.

[0013] Furthermore, the two support bases are arranged vertically at intervals, and the two support sliding cores are arranged between the two support bases.

[0014] In one embodiment of the present invention, the hydrostatic sliding layer is an integral structure. The oil passages in the hydrostatic sliding layer include vertically arranged vertical oil passages, a surface hydrostatic cavity disposed on the surface of the hydrostatic sliding layer, and horizontally arranged transverse oil passages. The transverse oil passages are connected to the vertical oil passages, and the vertical oil passages are connected to the surface hydrostatic cavity. The transverse oil passages are used to receive oil supply from the outside. When the surface hydrostatic cavity is full of oil, it is used to form a hydrostatic oil film between the hydrostatic sliding layer and the support base.

[0015] In one embodiment of the present invention, the hydrostatic sliding layer is a modular split structure, consisting of a hydrostatic sliding surface friction layer and a hydrostatic sliding transition layer. The hydrostatic sliding transition layer is used to connect with the hydrostatic docking valve block, and the hydrostatic sliding surface friction layer is used to form a friction pair with the support base. At this time, the oil circuit in the hydrostatic sliding layer includes a vertically arranged vertical oil circuit in the hydrostatic sliding surface friction layer and the hydrostatic sliding transition layer, a surface hydrostatic cavity arranged on the surface of the hydrostatic sliding surface friction layer, and a horizontally arranged transverse oil circuit. The transverse oil circuit is connected to the vertical oil circuit, and the vertical oil circuit is connected to the surface hydrostatic cavity. The transverse oil circuit is used to receive oil supply from the outside. When the surface hydrostatic cavity is full of oil, it is used to form a hydrostatic oil film between the hydrostatic sliding surface friction layer and the support base.

[0016] In one embodiment of the present invention, the hydrostatic sliding surface friction layer is an integral structure, thereby forming a surface hydrostatic cavity; or, the hydrostatic sliding surface friction layer is composed of multiple modular parts, thereby forming multiple symmetrical fan-shaped hydrostatic cavities. The multiple fan-shaped hydrostatic cavities can form a complete surface hydrostatic cavity, thereby reducing the space required for maintenance and making it easy to maintain and replace even in a compact space.

[0017] When the hydrostatic sliding layer is an integral design, it can be replaced as a whole; when the hydrostatic sliding layer is a modular split structure, only the surface hydrostatic sliding friction layer can be replaced.

[0018] In one embodiment of the present invention, the easy-to-maintain modular hydrostatic bearing resistant to extreme working conditions is a single-cavity modular hydrostatic bearing, in which case a vertical oil passage is provided in the hydrostatic sliding layer.

[0019] In one embodiment of the present invention, the easy-to-maintain modular hydrostatic support resistant to extreme working conditions is a multi-cavity modular hydrostatic support, in which multiple vertical oil passages are provided in the hydrostatic sliding layer.

[0020] In one embodiment of the present invention, the static pressure pipeline valve group supplies oil to the static pressure docking valve block through a high-pressure hydraulic pipeline and a throttle valve group.

[0021] In one embodiment of the invention, the hydraulic oil in the hydrostatic pipeline valve group eventually flows to the surface hydrostatic cavity in the hydrostatic sliding layer, thereby establishing a hydrostatic oil film between the support base and the support sliding core.

[0022] In one embodiment of the present invention, the oil circuit in the hydrostatic sliding layer is connected to a hydrostatic monitoring sensor. The hydrostatic monitoring sensor is used to monitor the hydrostatic cavity pressure in the oil circuit of the hydrostatic sliding layer and the thickness of the friction layer on the surface of the hydrostatic sliding layer, thereby determining whether the state of the hydrostatic support meets the requirements.

[0023] In one embodiment of the present invention, the hydrostatic monitoring sensor is connected to the transverse oil passage within the hydrostatic sliding layer.

[0024] In one embodiment of the present invention, the relative motion surface between the support base and the support sliding core is a plane or a sphere, that is, forming a planar fit or a spherical fit. When the relative motion surface is a plane, the hydrostatic support does not provide a horizontal restoring force, and the supported vertical load moves in a translational motion. When the relative motion surface is a sphere, the hydrostatic support provides a horizontal restoring force, and the supported vertical load moves in a swinging motion in the horizontal direction.

[0025] In one embodiment of the present invention, in the friction pair formed by the support base and the hydrostatic sliding layer, the friction surface of the support base is made of a high-strength, corrosion-resistant metal material so that it will not wear out and can be used for a long time. The friction surface of the hydrostatic sliding layer is made of a low-friction coefficient, low-wear polymer material or metal to reduce the friction coefficient and wear under extreme working conditions.

[0026] This application systematically solves a series of mutually restrictive engineering problems through modular design, such as high load-bearing capacity, extreme working conditions (such as dry friction in the absence of oil film), and easy maintenance in a compact space. In particular, it resolves the contradiction between long-term reliability and on-site maintainability of high load-bearing spherical supports in a compact space.

[0027] Furthermore, the modular hydrostatic support structure adopted in this application has special considerations. The hydrostatic sliding layer focuses on "friction and sealing," allowing for quick and low-cost replacement as a wear part; the hydrostatic docking valve block focuses on "oil circuit integration and structural connection," serving as a durable part that does not require frequent replacement. This modular approach, which clearly separates wear parts from durable parts, is not immediately obvious—because splitting components and increasing connection surfaces and internal oil circuits typically leads to increased leakage risks, processing costs, and accumulated assembly errors, contradicting the design goals of "high reliability" and "compactness."

[0028] This application decomposes the hydrostatic support into three major functional modules: hydrostatic sliding layer (vulnerable / friction / oil film generation), hydrostatic docking valve block (wear-resistant / oil circuit integration / structural connection), and hydrostatic pipeline valve group (control). By adopting the method of internal integrated oil circuit and rigid connection between modules, it collaboratively overcomes the four contradictory technical challenges of "high load-bearing capacity", "compact space", "reliability under extreme working conditions" and "easy on-site maintenance".

[0029] Compared with the prior art, the easy-to-maintain modular hydrostatic bearing provided by the present invention is used to support vertical loads, so that the supported vertical loads are almost frictionless when moving horizontally, and are suitable for scenarios with high requirements for horizontal movement accuracy, sensitivity and durability.

[0030] The modular hydrostatic bearing for extreme working conditions provided by this invention requires oil supply to establish a hydrostatic oil film, which generates energy consumption and noise. Therefore, when the supported vertical load does not need to move, the hydraulic system can be set to not work to save energy, reduce emissions, and extend the life of the hydraulic system. If an earthquake, strong wind, or other extreme weather occurs, or if a power outage or hydraulic system failure occurs when it is required to work (these two types of extreme weather and extreme situations are collectively referred to as extreme working conditions), relative movement may occur between the supported load and the hydrostatic bearing. Therefore, it is necessary to consider the friction coefficient and wear of the hydrostatic bearing under extreme working conditions, and to consider whether it can be maintained or replaced on-site when wear occurs.

[0031] This invention, through the material and structural design of the friction pair's wear layer, enables the hydrostatic support device to withstand extreme working conditions, and through modular design, it makes it easy to maintain and replace even in a compact space after friction and wear occur. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the single-cavity planar hydrostatic support in Example 1; Figure 2 This is a schematic cross-sectional view of the single-cavity spherical hydrostatic bearing in Example 2; Figure 3 This is a schematic diagram of the structure of the support sliding core in the single-cavity planar hydrostatic bearing in Example 1; Figure 4 This is a schematic diagram of the overall wear surface of the support sliding core of the single-cavity planar hydrostatic bearing in Example 1; Figure 5 This is a schematic diagram of the split wear surface of the support sliding core of the single-cavity planar hydrostatic bearing in Example 3; Figure 6 This is a schematic diagram of the overall wear surface of the support sliding core of the single-cavity spherical hydrostatic bearing in Example 2; Figure 7 This is a schematic diagram of the split wear surface of the support sliding core of the single-cavity spherical hydrostatic bearing in Example 4; Figure 8 This is a schematic diagram of the structure of the support sliding core of the multi-cavity planar hydrostatic bearing in Example 5; Figure 9 This is a schematic diagram of the overall wear surface of the support sliding core of the multi-cavity planar hydrostatic bearing in Example 5; Figure 10 This is a schematic diagram of the split wear surface of the support sliding core of the multi-cavity planar hydrostatic support in Example 6.

[0033] The image includes the following symbols: 1. Support base; 2. Support sliding core; 2-1. Static pressure sliding layer; 2-2. Static pressure monitoring sensor; 2-3. Static pressure pipeline valve group; 2-4. Static pressure docking valve block; 2-1-1. Static pressure sliding surface friction layer; 2-1-2. Static pressure sliding transition layer; 2-1-3. Vertical oil passage; 2-1-4. Surface static pressure cavity; 2-1-5. Horizontal oil passage; 3. Connecting parts. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0035] Example 1 This embodiment provides an easy-to-maintain modular hydrostatic bearing that is resistant to extreme working conditions. It is a single-cavity planar hydrostatic bearing.

[0036] refer to Figure 1 , Figure 3 The easy-to-maintain modular hydrostatic bearing resistant to extreme working conditions in this embodiment consists of a support base 1, a support sliding core 2, and a connecting piece 3; The easy-maintain modular hydrostatic bearing contains two support bases 1 and two support sliding cores 2; The supporting sliding core 2 includes a static pressure sliding layer 2-1, a static pressure pipeline valve group 2-3, and a static pressure docking valve block 2-4. The static pressure sliding layer 2-1 is fixedly connected to the static pressure docking valve block 2-4. An oil passage is provided in the static pressure sliding layer 2-1, an oil passage is provided in the static pressure docking valve block 2-4, and the oil passages in the static pressure sliding layer 2-1 and the static pressure docking valve block 2-4 are connected. The static pressure pipeline valve group 2-3 is connected to the oil passages in the static pressure docking valve block 2-4 and is used to supply oil to the static pressure sliding layer 2-1. The static pressure sliding layer 2-1 in the support sliding core 2 forms a friction pair with the support base 1, and the static pressure docking valve blocks 2-4 of the two support sliding cores 2 are connected by a connector 3.

[0037] In this embodiment, two support bases 1 are arranged vertically at intervals, and two support sliding cores 2 are arranged between the two support bases 1.

[0038] Further reference Figure 3 , Figure 4 In this embodiment, the hydrostatic sliding layer 2-1 is an integral structure. The oil passages in the hydrostatic sliding layer 2-1 include a vertically arranged vertical oil passage 2-1-3, a surface hydrostatic cavity 2-1-4 arranged on the surface of the hydrostatic sliding layer 2-1, and a horizontally arranged horizontal oil passage 2-1-5. The horizontal oil passage 2-1-5 is connected to the vertical oil passage 2-1-3, and the vertical oil passage 2-1-3 is connected to the surface hydrostatic cavity 2-1-4. The horizontal oil passage 2-1-5 is used to receive oil from the outside. When the surface hydrostatic cavity 2-1-4 is full of oil, it is used to form a hydrostatic oil film between the hydrostatic sliding layer 2-1 and the support base 1.

[0039] In this embodiment, the hydrostatic sliding surface friction layer 2-1-1 is an integral structure, thereby forming a surface hydrostatic cavity 2-1-4.

[0040] In this embodiment, since the static pressure sliding layer 2-1 is an integral design, it can be replaced as a whole.

[0041] In this embodiment, the easy-to-maintain modular hydrostatic support that is resistant to extreme working conditions is a single-cavity modular hydrostatic support, that is, a vertical oil passage 2-1-3 is provided in the hydrostatic sliding layer 2-1.

[0042] Further reference Figure 3 , Figure 4 In this embodiment, the oil circuit in the hydrostatic sliding layer 2-1 is connected to a hydrostatic monitoring sensor 2-2. The hydrostatic monitoring sensor 2-2 is connected to the transverse oil circuit 2-1-5 in the hydrostatic sliding layer 2-1. The hydrostatic monitoring sensor 2-2 is used to monitor the hydrostatic cavity pressure in the oil circuit of the hydrostatic sliding layer 2-1 and monitor the thickness of the friction layer on the surface of the hydrostatic sliding layer 2-1, thereby determining whether the state of the hydrostatic support meets the requirements.

[0043] Further reference Figure 1 , Figure 3 In this embodiment, the relative motion surface between the support base 1 and the support sliding core 2 is a plane, that is, it forms a planar fit. Since the relative motion surface is a plane, the hydrostatic support does not provide horizontal restoring force, and the motion mode of the supported vertical load is translational.

[0044] In this embodiment, in the friction pair formed by the support base 1 and the hydrostatic sliding layer 2-1, the friction surface of the support base 1 is made of a high-strength, corrosion-resistant metal material so that it will not wear out and can be used for a long time. The friction surface of the hydrostatic sliding layer 2-1 is made of a low-friction coefficient, low-wear polymer material or metal to reduce the friction coefficient and wear under extreme working conditions.

[0045] In this embodiment, the material of the friction surface in the support base 1 can be Nitronic 60 stainless steel, and the material of the friction surface in the hydrostatic sliding layer 2-1 is modified polyether ether ketone (PEEK), such as TECAPEEK PVX black.

[0046] In this embodiment, the static pressure pipeline valve group 2-3 supplies oil to the static pressure docking valve block 2-4 through a high-pressure hydraulic pipeline and a throttle valve group.

[0047] In this embodiment, the hydraulic oil in the static pressure pipeline valve group 2-4 is finally directed to the surface static pressure cavity 2-1-4 in the static pressure sliding layer 2-1, thereby establishing a static pressure oil film between the support base 1 and the support sliding core 2.

[0048] The easily maintainable modular hydrostatic bearing provided in this embodiment is used to support vertical loads, so that the supported vertical loads are almost frictionless when moving horizontally. It is suitable for scenarios with high requirements for horizontal movement accuracy, sensitivity and durability.

[0049] Example 2 This embodiment provides an easy-to-maintain modular hydrostatic bearing that can withstand extreme working conditions; it is a single-cavity spherical hydrostatic bearing.

[0050] refer to Figure 2 , Figure 6 Unlike Embodiment 1, in this embodiment, the relative motion surface between the support base 1 and the support sliding core 2 is a spherical surface, which constitutes a spherical fit. At this time, the hydrostatic support provides a horizontal restoring force, and the horizontal motion of the supported vertical load is an oscillation.

[0051] Example 3 This embodiment provides an easy-to-maintain modular hydrostatic bearing that is resistant to extreme working conditions. It is a single-cavity planar hydrostatic bearing.

[0052] However, reference Figure 5Unlike Embodiment 1, in this embodiment, the hydrostatic sliding layer 2-1 is a modular split structure, consisting of a hydrostatic sliding surface friction layer 2-1-1 and a hydrostatic sliding transition layer 2-1-2. The hydrostatic sliding transition layer 2-1-2 is used to connect with the hydrostatic docking valve block 2-4, and the hydrostatic sliding surface friction layer 2-1-1 is used to form a friction pair with the support base 1. In this case, the oil passages in the hydrostatic sliding layer 2-1 include vertically arranged sections within the hydrostatic sliding surface friction layer 2-1-1 and the hydrostatic sliding transition layer 2-1-2. The system includes a vertical oil passage 2-1-3, a surface hydrostatic cavity 2-1-4 disposed on the surface of the hydrostatic sliding surface friction layer 2-1-1, and a transverse oil passage 2-1-5 disposed laterally. The transverse oil passage 2-1-5 is connected to the vertical oil passage 2-1-3, and the vertical oil passage 2-1-3 is connected to the surface hydrostatic cavity 2-1-4. The transverse oil passage 2-1-5 is used to receive oil from the outside. When the surface hydrostatic cavity 2-1-4 is full of oil, it is used to form a hydrostatic oil film between the hydrostatic sliding surface friction layer 2-1-1 and the support base 1.

[0053] In this embodiment, the hydrostatic sliding layer 2-1 is a modular split structure, and only the surface hydrostatic sliding friction layer 2-1-1 needs to be replaced.

[0054] Example 4 This embodiment provides an easy-to-maintain modular hydrostatic bearing that can withstand extreme working conditions; it is a single-cavity spherical hydrostatic bearing.

[0055] refer to Figure 7 Unlike Embodiment 1, in this embodiment, the relative motion surface between the support base 1 and the support sliding core 2 is a spherical surface, which constitutes a spherical fit. At this time, the hydrostatic support provides a horizontal restoring force, and the horizontal motion of the supported vertical load is an oscillation.

[0056] In this embodiment, the hydrostatic sliding layer 2-1 is a modular split structure, consisting of a hydrostatic sliding surface friction layer 2-1-1 and a hydrostatic sliding transition layer 2-1-2. The hydrostatic sliding transition layer 2-1-2 is used to connect with the hydrostatic docking valve block 2-4, and the hydrostatic sliding surface friction layer 2-1-1 is used to form a friction pair with the support base 1. In this case, the oil passages within the hydrostatic sliding layer 2-1 include vertically arranged vertical oil passages within the hydrostatic sliding surface friction layer 2-1-1 and the hydrostatic sliding transition layer 2-1-2. 2-1-3. A surface hydrostatic cavity 2-1-4 disposed on the surface of the hydrostatic sliding surface friction layer 2-1-1, and a transverse oil passage 2-1-5 disposed laterally. The transverse oil passage 2-1-5 is connected to the vertical oil passage 2-1-3, and the vertical oil passage 2-1-3 is connected to the surface hydrostatic cavity 2-1-4. The transverse oil passage 2-1-5 is used to receive oil from the outside. When the surface hydrostatic cavity 2-1-4 is full of oil, it is used to form a hydrostatic oil film between the hydrostatic sliding surface friction layer 2-1-1 and the support base 1.

[0057] In this embodiment, the hydrostatic sliding layer 2-1 is a modular split structure, and only the surface hydrostatic sliding friction layer 2-1-1 needs to be replaced.

[0058] Example 5 This embodiment provides an easy-to-maintain modular hydrostatic bearing that can withstand extreme working conditions, which is a multi-cavity planar hydrostatic bearing.

[0059] refer to Figure 8 , Figure 9 Unlike Embodiment 1, in this embodiment, the easy-to-maintain modular hydrostatic support that is resistant to extreme working conditions is a multi-cavity modular hydrostatic support. In this case, multiple vertical oil passages 2-1-3 are provided in the hydrostatic sliding layer 2-1. In this embodiment, two vertical oil passages 2-1-3 are provided in the hydrostatic sliding layer 2-1.

[0060] At this point, the hydrostatic sliding surface friction layer 2-1-1 is composed of multiple modular parts, thereby forming multiple symmetrical fan-shaped hydrostatic cavities. The multiple fan-shaped hydrostatic cavities can form a complete surface hydrostatic cavity 2-1-4, thereby reducing the space requirements for maintenance and making it easy to maintain and replace even in a compact space.

[0061] Example 6 This embodiment provides an easy-to-maintain modular hydrostatic bearing that can withstand extreme working conditions, which is a multi-cavity planar hydrostatic bearing.

[0062] refer to Figure 10Unlike Embodiment 1, in this embodiment, the easy-to-maintain modular hydrostatic support that is resistant to extreme working conditions is a multi-cavity modular hydrostatic support. In this case, multiple vertical oil passages 2-1-3 are provided in the hydrostatic sliding layer 2-1. In this embodiment, two vertical oil passages 2-1-3 are provided in the hydrostatic sliding layer 2-1.

[0063] At this point, the hydrostatic sliding surface friction layer 2-1-1 is composed of multiple modular parts, thereby forming multiple symmetrical fan-shaped hydrostatic cavities. The multiple fan-shaped hydrostatic cavities can form a complete surface hydrostatic cavity 2-1-4, thereby reducing the space requirements for maintenance and making it easy to maintain and replace even in a compact space.

[0064] Furthermore, unlike Embodiment 1, in this embodiment, the hydrostatic sliding layer 2-1 is a modular split structure, consisting of a hydrostatic sliding surface friction layer 2-1-1 and a hydrostatic sliding transition layer 2-1-2. The hydrostatic sliding transition layer 2-1-2 is used to connect with the hydrostatic docking valve block 2-4, and the hydrostatic sliding surface friction layer 2-1-1 is used to form a friction pair with the support base 1. In this case, the oil passages in the hydrostatic sliding layer 2-1 include vertically arranged sections within the hydrostatic sliding surface friction layer 2-1-1 and the hydrostatic sliding transition layer 2-1-2. The system includes a vertical oil passage 2-1-3, a surface static pressure cavity 2-1-4 disposed on the surface of the static pressure sliding surface friction layer 2-1-1, and a transverse oil passage 2-1-5 disposed laterally. The transverse oil passage 2-1-5 is connected to the vertical oil passage 2-1-3, and the vertical oil passage 2-1-3 is connected to the surface static pressure cavity 2-1-4. The transverse oil passage 2-1-5 is used to receive oil from the outside. When the surface static pressure cavity 2-1-4 is full of oil, it is used to form a static pressure oil film between the static pressure sliding surface friction layer 2-1-1 and the support base 1.

[0065] In this embodiment, the hydrostatic sliding layer 2-1 is a modular split structure, and only the surface hydrostatic sliding friction layer 2-1-1 needs to be replaced.

[0066] Example 7 This embodiment provides an easy-to-maintain modular hydrostatic bearing that can withstand extreme working conditions; it is a multi-cavity spherical hydrostatic bearing.

[0067] Unlike Embodiment 5, in this embodiment, the relative motion surface between the support base 1 and the support sliding core 2 is a spherical surface, which constitutes a spherical fit. In this case, the hydrostatic support provides a horizontal restoring force, and the horizontal motion of the supported vertical load is an oscillation.

[0068] Example 8 This embodiment provides an easy-to-maintain modular hydrostatic bearing that can withstand extreme working conditions; it is a multi-cavity spherical hydrostatic bearing.

[0069] Unlike Embodiment 6, in this embodiment, the relative motion surface between the support base 1 and the support sliding core 2 is a spherical surface, which constitutes a spherical fit. In this case, the hydrostatic support provides a horizontal restoring force, and the horizontal motion of the supported vertical load is an oscillation.

[0070] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A maintainable modular hydrostatic bearing resistant to extreme working conditions, characterized in that, It consists of a support base (1), a support sliding core (2), and a connecting piece (3); One of the aforementioned easy-maintain modular hydrostatic bearings contains two support bases (1) and two support sliding cores (2); The supporting sliding core (2) includes a static pressure sliding layer (2-1), a static pressure pipeline valve group (2-3), and a static pressure docking valve block (2-4). The static pressure sliding layer (2-1) is fixedly connected to the static pressure docking valve block (2-4). The static pressure sliding layer (2-1) is provided with an oil passage, the static pressure docking valve block (2-4) is provided with an oil passage, and the static pressure sliding layer (2-1) and the static pressure docking valve block (2-4) are connected to each other. The static pressure pipeline valve group (2-3) is connected to the oil passage in the static pressure docking valve block (2-4) and is used to supply oil to the static pressure sliding layer (2-1). The static pressure sliding layer (2-1) in the support sliding core (2) forms a friction pair with the support base (1), and the static pressure docking valve blocks (2-4) of the two support sliding cores (2) are connected by a connector (3).

2. The easily maintainable modular hydrostatic bearing resistant to extreme working conditions according to claim 1, characterized in that, Two support bases (1) are arranged vertically at intervals, and two support sliding cores (2) are arranged between the two support bases (1).

3. The easily maintainable modular hydrostatic bearing resistant to extreme working conditions according to claim 1, characterized in that, The hydrostatic sliding layer (2-1) is an integral structure. The oil circuit in the hydrostatic sliding layer (2-1) includes a vertically arranged vertical oil circuit (2-1-3), a surface hydrostatic cavity (2-1-4) arranged on the surface of the hydrostatic sliding layer (2-1), and a horizontally arranged horizontal oil circuit (2-1-5). The horizontal oil circuit (2-1-5) is connected to the vertical oil circuit (2-1-3), and the vertical oil circuit (2-1-3) is connected to the surface hydrostatic cavity (2-1-4). The horizontal oil circuit (2-1-5) is used to receive oil from the outside. When the surface hydrostatic cavity (2-1-4) is full of oil, it is used to form a hydrostatic oil film between the hydrostatic sliding layer (2-1) and the support base (1).

4. The easily maintainable modular hydrostatic bearing resistant to extreme working conditions according to claim 1, characterized in that, The hydrostatic sliding layer (2-1) is a modular split structure, consisting of a hydrostatic sliding surface friction layer (2-1-1) and a hydrostatic sliding transition layer (2-1-2). The hydrostatic sliding transition layer (2-1-2) is used to connect with the hydrostatic docking valve block (2-4), and the hydrostatic sliding surface friction layer (2-1-1) is used to form a friction pair with the support base (1). At this time, the oil circuit in the hydrostatic sliding layer (2-1) includes vertically arranged vertical oil circuits (2-1-3) in the hydrostatic sliding surface friction layer (2-1-1) and the hydrostatic sliding transition layer (2-1-2). The surface hydrostatic cavity (2-1-4) is provided on the surface of the hydrostatic sliding surface friction layer (2-1-1), and the transverse oil passage (2-1-5) is provided laterally. The transverse oil passage (2-1-5) is connected to the vertical oil passage (2-1-3), and the vertical oil passage (2-1-3) is connected to the surface hydrostatic cavity (2-1-4). The transverse oil passage (2-1-5) is used to receive oil from the outside. When the surface hydrostatic cavity (2-1-4) is full of oil, it is used to form a hydrostatic oil film between the hydrostatic sliding surface friction layer (2-1-1) and the support base (1).

5. The easily maintainable modular hydrostatic bearing resistant to extreme working conditions according to claim 4, characterized in that, The hydrostatic sliding surface friction layer (2-1-1) is an integral structure, or the hydrostatic sliding surface friction layer (2-1-1) is composed of multiple modular parts, thereby forming multiple symmetrical fan-shaped hydrostatic cavities, and the multiple fan-shaped hydrostatic cavities can form a complete surface hydrostatic cavity (2-1-4).

6. A maintainable modular hydrostatic bearing resistant to extreme working conditions according to claim 3 or 4, characterized in that, The easy-to-maintain modular hydrostatic bearing that is resistant to extreme working conditions is a single-cavity modular hydrostatic bearing. In this case, a vertical oil passage (2-1-3) is set in the hydrostatic sliding layer (2-1).

7. A maintainable modular hydrostatic bearing resistant to extreme working conditions according to claim 3 or 4, characterized in that, The easy-to-maintain modular hydrostatic bearing that is resistant to extreme working conditions is a multi-cavity modular hydrostatic bearing. In this case, multiple vertical oil passages (2-1-3) are provided in the hydrostatic sliding layer (2-1).

8. A maintainable modular hydrostatic bearing resistant to extreme working conditions according to claim 3 or 4, characterized in that, The static pressure pipeline valve group (2-3) supplies oil to the static pressure docking valve block (2-4) through the high pressure hydraulic pipeline and throttle valve group; the hydraulic oil in the static pressure pipeline valve group (2-4) finally flows to the surface static pressure cavity (2-1-4) in the static pressure sliding layer (2-1), thereby establishing a static pressure oil film between the support base (1) and the support sliding core (2).

9. A modular hydrostatic bearing for extreme working conditions as described in claim 1, characterized in that, The oil circuit in the hydrostatic sliding layer (2-1) is connected to a hydrostatic monitoring sensor (2-2). The hydrostatic monitoring sensor (2-2) is used to monitor the hydrostatic cavity pressure in the oil circuit of the hydrostatic sliding layer (2-1) and monitor the thickness of the friction layer on the surface of the hydrostatic sliding layer (2-1), thereby determining whether the state of the hydrostatic support meets the requirements.

10. A maintainable modular hydrostatic bearing resistant to extreme working conditions according to claim 1, characterized in that, The relative motion surfaces between the support base (1) and the support sliding core (2) are either planes or spheres, forming a planar fit or a spherical fit. When the relative motion surfaces are planes, the supported vertical load moves in a translational motion. When the relative motion surfaces are spheres, the hydrostatic support provides a horizontal restoring force, and the supported vertical load moves in a swinging motion in the horizontal direction.

Images