Static pressure slider structure and hydraulic system

Abstract

The utility model discloses a kind of static pressure slider structure and hydraulic system, static pressure slider structure includes slider main body and pressure block.The slider main body has upper surface, lower surface and the first side surface between the upper surface and the lower surface, the first side surface is provided with mounting groove, the slider main body is provided with the first oil inlet channel being communicated with the mounting groove.The pressure block is installed in the mounting groove and can rotate relative to the slider main body, the side of the pressure block away from the slider main body is provided with the first pressure oil cavity recessed inwards, the pressure block is provided with the second oil inlet channel being communicated with the first oil inlet channel and the first pressure oil cavity.The static pressure slider structure and hydraulic system of the application solve the problem that oil leakage is easily generated when static pressure slider and guide rail are assembled and oil cavity pressure cannot be effectively established due to perpendicularity deviation of guide rail in hydraulic system.

Description

Technical Field

[0001] This utility model relates to the field of precision machining technology, and more specifically, to a hydrostatic slider structure and hydraulic system. Background Technology

[0002] Currently, in hydraulic systems, unavoidable errors in the manufacturing process of guide rails result in a certain degree of perpendicularity deviation. During the assembly of the hydrostatic slider and guide rail, this perpendicularity deviation causes a wedge-shaped gap in the fit between them, leading to oil leakage. This leakage prevents the hydraulic oil from forming a stable pressure within the oil chamber, hindering pressure rise and severely impacting the support stiffness and motion accuracy of the hydraulic system, thus reducing the equipment's processing quality and performance. Utility Model Content

[0003] The main purpose of this utility model is to provide a hydrostatic slider structure and hydraulic system, so as to at least solve the problem that the hydrostatic slider and the guide rail are prone to oil leakage and the oil chamber pressure cannot be effectively established when they are assembled due to the verticality deviation of the guide rail in the hydraulic system.

[0004] According to one aspect of the present invention, a hydrostatic slider structure is provided, comprising:

[0005] The slider body has an upper surface, a lower surface, and a first side surface located between the upper surface and the lower surface. The first side surface is provided with a mounting groove, and the slider body is provided with a first oil inlet channel communicating with the mounting groove.

[0006] The pressure block is installed in the mounting groove and can rotate relative to the slider body. The side of the pressure block away from the slider body is provided with an inwardly recessed first pressure-bearing oil cavity. The pressure block is provided with a second oil inlet channel connecting the first oil inlet channel and the first pressure-bearing oil cavity.

[0007] Furthermore, the pressure-bearing block is fitted to the inner wall of the mounting groove, and a first curved surface is provided on the side of the pressure-bearing block near the mounting groove, while a second curved surface is provided on the inner wall of the mounting groove to slide in cooperation with the first curved surface.

[0008] Furthermore, the pressure-bearing block has a semi-cylindrical or hemispherical structure.

[0009] Furthermore, a fixed connection component is provided between the slider body and the pressure block, and the slider body and the pressure block are rotatably connected through the fixed connection component.

[0010] Furthermore, the fixed connection component includes:

[0011] A magnetic connecting component, comprising a magnetic element and a first limiting groove, wherein the first limiting groove is disposed on a first curved surface or a second curved surface, the magnetic element is disposed within the first limiting groove, and both the slider body and the pressure block are magnetically connected to the magnetic element; or

[0012] A ball-head connecting component, the ball-head connecting component including a ball head and a second limiting groove, one of the ball head and the second limiting groove being disposed on a first curved surface, and the other being disposed on a second curved surface, the ball head being rotatably disposed within the second limiting groove.

[0013] Furthermore, a sealing ring is provided between the first oil inlet channel and the second oil inlet channel, and the first oil inlet channel and the second oil inlet channel are sealed together by the sealing ring.

[0014] Furthermore, a third limiting groove is provided between the first oil inlet channel and the second oil inlet channel. The third limiting groove is provided on at least one of the first curved surface and the second curved surface, and the sealing ring is at least partially provided in the third limiting groove.

[0015] Furthermore, the slider body also has a second side and a third side arranged opposite to each other, the second side and the third side being located on both sides of the first side, the second side being provided with a first throttle, the third side being provided with a second throttle, the upper surface being provided with a main oil inlet and an inwardly recessed second pressure-bearing oil chamber, the lower surface being provided with an inwardly recessed third pressure-bearing oil chamber, and both the first throttle and the second throttle being provided with a throttle inlet and a throttle outlet;

[0016] Wherein, the oil inlet of the first throttle is connected to the main oil inlet, the oil outlet of the first throttle is connected to the first oil inlet channel, the oil inlet of the second throttle is connected to the main oil inlet, and the oil outlet of the second throttle is connected to the second pressure-bearing oil chamber and the third pressure-bearing oil chamber respectively.

[0017] Furthermore, the slider body is also provided with a third oil inlet channel, a fourth oil inlet channel, a fifth oil inlet channel, and a sixth oil inlet channel. The main oil inlet is connected to the throttle inlet of the first throttle via the third oil inlet channel. The main oil inlet is connected to the throttle inlet of the second throttle via the fourth oil inlet channel. The throttle outlet of the second throttle is connected to the second pressure-bearing oil chamber via the fifth oil inlet channel. The throttle outlet of the second throttle is connected to the third pressure-bearing oil chamber via the sixth oil inlet channel.

[0018] On the other hand, the present invention also provides a hydraulic system, which includes the above-mentioned hydrostatic slider structure.

[0019] In this invention, the design of a pressure block that can rotate relative to the slider body allows it to automatically adjust its angle according to the perpendicularity deviation of the guide rail, thereby eliminating the wedge-shaped gap caused by the deviation between the hydrostatic slider structure and the guide rail. The adaptive adjustment of the pressure block avoids oil leakage caused by the gap, ensuring the sealing of the hydraulic oil within the oil chamber. By eliminating the gap between the hydrostatic slider structure and the guide rail, the hydraulic oil can form a stable closed space within the first pressure-bearing oil chamber. Continuous oil supply through the first and second oil inlet channels effectively increases and maintains the oil chamber pressure. Stable oil chamber pressure directly improves the support stiffness of the hydraulic system, ensuring more reliable support of the equipment by the hydrostatic slider. The increased support stiffness and stable oil chamber pressure reduce vibration and displacement deviation during equipment operation, significantly improving the system's motion accuracy. The overall structure achieves its function through the cooperation of the mounting groove of the slider body and the rotatable pressure block, eliminating the need for complex adjustment mechanisms and facilitating manufacturing, assembly, and maintenance. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the hydrostatic slider structure disclosed in the embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the hydrostatic slider structure disclosed in an embodiment of the present utility model from another perspective;

[0023] Figure 3 This is an exploded view of the hydrostatic slider structure disclosed in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the slider body disclosed in an embodiment of this utility model;

[0025] Figure 5 This is a perspective view of the slider body disclosed in an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the pressure-bearing block disclosed in an embodiment of the present utility model;

[0027] Figure 7 This is a perspective view of the pressure-bearing block disclosed in an embodiment of this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the first or second throttle device disclosed in the embodiments of this utility model;

[0029] Figure 9 This is a schematic diagram of the structure of the guide plate disclosed in the embodiment of this utility model.

[0030] The above figures include the following reference numerals:

[0031] 10. Slider body; 101. Upper surface; 1011. Main oil inlet; 1012. Second pressure-bearing oil chamber; 102. Lower surface; 1021. Third pressure-bearing oil chamber; 103. First side surface; 104. Second side surface; 105. Third side surface; 11. Mounting groove; 111. Second curved surface; 12. First oil inlet channel; 121. Third limiting groove; 122. First oil inlet; 123. First oil outlet; 13. Third oil inlet channel; 131. Third oil inlet; 132. Third oil outlet; 14. Fourth oil inlet channel; 141. Fourth oil inlet; 142. Fourth oil outlet; 15. Fifth oil inlet channel; 151. Fifth oil inlet; 152. 16. Fifth oil outlet; 16. Sixth oil inlet channel; 161. Sixth oil inlet; 162. Sixth oil outlet; 17. Throttling device fixing hole; 18. Mounting hole; 20. Pressure block; 21. First pressure-bearing oil chamber; 22. Second oil inlet channel; 221. Second oil inlet; 222. Second oil outlet; 23. First curved surface; 30. Magnetic connecting component; 31. Magnetic component; 32. First limiting groove; 40. Sealing ring; 51. First throttle; 52. Second throttle; 53. Throttling device inlet; 54. Throttling device outlet; 55. Throttling device fixing component; 60. Guide plate; 61. Seventh oil inlet; 62. Seventh oil outlet; 63. Annular guide groove. Detailed Implementation

[0032] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0035] In related technologies, the guide rails in hydraulic systems may have perpendicularity deviations due to manufacturing precision issues. Gaps between the hydrostatic slider and the guide rail during assembly can lead to oil leakage, preventing the hydraulic oil from forming stable pressure within the oil chamber and affecting the support stiffness and motion accuracy of the hydraulic system. Therefore, this application provides a hydrostatic slider structure and hydraulic system. By incorporating a pressure-bearing block that can rotate relative to the slider body, when the pressure distribution in the first pressure-bearing oil chamber on the pressure-bearing block is uneven due to perpendicularity deviation of the guide rail, the rotating pressure-bearing block can adapt to the oil chamber pressure, effectively compensating for guide rail manufacturing precision errors, improving assembly precision with the guide rail, and ensuring stable establishment of oil chamber pressure.

[0036] See Figures 1 to 9 As shown in the embodiment of this application, a hydrostatic slider structure is provided, including a slider body 10 and a pressure block 20. The slider body 10 has an upper surface 101, a lower surface 102, and a first side surface 103 located between the upper surface 101 and the lower surface 102. The first side surface 103 is provided with a mounting groove 11, and the slider body 10 is provided with a first oil inlet channel 12 communicating with the mounting groove 11. The pressure block 20 is installed in the mounting groove 11 and can rotate relative to the slider body 10. A first pressure-bearing oil cavity 21 recessed inward is provided on the side of the pressure block 20 away from the slider body 10. The pressure block 20 is provided with a second oil inlet channel 22 communicating with the first oil inlet channel 12 and the first pressure-bearing oil cavity 21.

[0037] Understandably, when the hydrostatic slider structure of this embodiment is assembled with the guide rail, the hydraulic oil enters the first pressure-bearing oil chamber 21 of the pressure-bearing block 20 through the sliding contact between the pressure-bearing block 20 on the first side 103 and the vertical surface of the guide rail. The hydraulic oil then passes through the first oil inlet channel 12 of the slider body 10 and the second oil inlet channel 22 on the pressure-bearing block 20, forming a pressure oil film within the first pressure-bearing oil chamber 21. When there is a verticality deviation between the vertical surface of the guide rail and the pressure oil film in the first pressure-bearing oil chamber 21, the pressure in the entire first pressure-bearing oil chamber 21 becomes uneven, with some areas experiencing higher pressure. This higher pressure compresses the pressure-bearing block 20, causing it to rotate relative to the slider body 10, thus re-forming a stable pressure oil film within the first pressure-bearing oil chamber 21. This improves the assembly accuracy of the hydrostatic slider structure and the guide rail, prevents oil leakage, and ensures the effective establishment of pressure in the oil chamber. Furthermore, there is no need for extensive machining and modification of the guide rail or hydrostatic slider. Verticality optimization can be achieved simply by rotating and adjusting the rotatable pressure block 20, which greatly reduces the workload and cost of assembly and debugging, and improves production efficiency.

[0038] Furthermore, the pressure block 20 is fitted to the inner wall of the mounting groove 11, and a first curved surface 23 is provided on the side of the pressure block 20 near the mounting groove 11. The inner wall of the mounting groove 11 is provided with a second curved surface 111 that slides in cooperation with the first curved surface 23.

[0039] like Figure 3 As shown, the mounting groove 11 of the pressure block 20 and the slider body 10 adopts a sliding fit between the first curved surface 23 and the second curved surface 111, which provides a precise guide trajectory for the rotation of the pressure block 20 relative to the slider body 10, ensuring the smoothness and stability of the rotation of the pressure block 20 and avoiding problems such as jamming or sticking. The curved surface has a larger contact area and a higher fit, which can effectively prevent hydraulic oil from leaking from the mating surface between the pressure block 20 and the mounting groove 11. It also allows the pressure block 20 to rotate and adjust, and the curved surface fit remains stable. The sealing performance will not decrease significantly due to the angle change, thereby ensuring the pressure stability of the pressure oil film in the first pressure oil chamber 21, enhancing the sealing of the mating surface, and avoiding hydraulic oil leakage.

[0040] like Figure 3 , Figure 6 and Figure 7 As shown, the pressure block 20 in this embodiment has a semi-cylindrical structure. The semi-cylindrical structure can rotate around the axis, which can specifically adapt to the verticality deviation of the guide rail vertical surface in the rotation direction, quickly adjust the pressure of the first pressure-bearing oil chamber 21, and ensure the fit with the guide rail surface.

[0041] Preferably, the pressure block 20 can also be configured as a hemispherical structure (not shown in the figure). The hemispherical structure, with its center as the fulcrum, can achieve flexible rotation in multiple directions, and can cope with the perpendicularity deviation of the guide rail vertical plane in multiple dimensions, ensuring uniform distribution of the pressure oil film. The spherical contact can evenly distribute the reaction force of the pressure oil film across the entire curved surface, avoiding excessive local stress. Compared with a semi-cylindrical structure, the multi-directional rotation characteristics of the hemispherical structure can adapt to more complex assembly error scenarios, reduce the machining accuracy requirements of the guide rail and slider body 10, and further reduce assembly and debugging costs.

[0042] Understandably, since the pressure block 20 achieves flexible rotation through the engagement of the first curved surface 23 with the second curved surface 111 of the mounting groove 11, the semi-cylindrical or hemispherical structure of the pressure block 20 is not limited to half a cylinder or half a sphere. That is, the semi-cylindrical structure can be a structure obtained by cutting a cylinder along its axis, or it can be a structure obtained by cutting along a plane parallel to the axis. The hemispherical structure can be a structure obtained by cutting a sphere along a plane passing through its center, or it can be a structure obtained by cutting a sphere based on any plane passing through it.

[0043] It is understood that, in addition to the semi-cylindrical structure and the hemispherical structure, the pressure block 20 in this embodiment can also adopt other alternative structures that enable the pressure block 20 to rotate relative to the slider body 10 within the mounting groove 11. Therefore, adopting other pressure block 20 structures to enable the pressure block 20 to rotate relative to the slider body 10 is also within the protection scope of this application.

[0044] Furthermore, a fixed connecting component is provided between the slider body 10 and the pressure block 20, allowing for rotatable connection between them. This fixed connecting component prevents the pressure block 20 from falling out of the mounting groove 11 of the slider body 10, ensuring the stability of the hydrostatic slider structure during assembly. The fixed connecting component must not affect the relative rotation between the pressure block 20 and the slider body 10; that is, it ensures that the pressure block 20 does not detach from the mounting groove 11 while simultaneously allowing for rotation within the mounting groove 11.

[0045] like Figure 3 As shown, the fixed connection component in this embodiment includes a magnetic connection component 30. The magnetic connection component 30 includes a magnetic element 31 and a first limiting groove 32. The first limiting groove 32 is disposed on the first curved surface 23 or the second curved surface 111. The magnetic element 31 is disposed in the first limiting groove 32. The slider body 10 and the pressure block 20 are both magnetically connected to the magnetic element 31.

[0046] The fixed connection component adopts a magnetic connection component 30. The magnetic element 31 of the magnetic connection component 30 provides an initial preload force for the magnetic attraction between the slider body 10 and the pressure block 20, ensuring that the pressure block 20 maintains a stable position when no external force is applied, reducing loosening caused by vibration or impact. The magnetic force of the magnetic element 31 is much smaller than the oil cavity pressure, so the use of the magnetic element 31 will not affect the normal rotation of the pressure block 20. The magnetic element 31 is installed by setting the first limiting groove 32 on the first curved surface 23 or the second curved surface 111, which can ensure the fit between the first curved surface 23 and the second curved surface 111, avoiding affecting the relative sliding of the first curved surface 23 and the second curved surface 111, thus preventing the pressure block 20 from rotating normally. Figure 3 and Figure 4 The first limiting groove 32 shown in this embodiment is disposed on the second curved surface 111 of the mounting groove 11, so that the magnetic component 31 will not rotate with the pressure block 20, thus improving the stability of the structure. The magnetic connection characteristics can absorb high-frequency vibrations between the guide rail and the pressure block 20, reduce rigid collisions, and extend the service life of the components.

[0047] Optionally, the fixed connection component can also be a ball-head connection component (not shown in the figure). The ball-head connection component includes a ball head and a second limiting groove. One of the ball head and the second limiting groove is disposed on the first curved surface 23, and the other is disposed on the second curved surface 111. The ball head is rotatably disposed within the second limiting groove. The ball head and the second limiting groove form a spherical pair, allowing the pressure block 20 to achieve multi-degree-of-freedom rotation in space, and the connection is stable. The ball-head connection does not require additional fasteners, and the connection and rotation functions are directly achieved through the spherical pair, reducing the number of parts and optimizing space occupation.

[0048] Furthermore, a sealing ring 40 is provided between the first oil inlet channel 12 and the second oil inlet channel 22, and the first oil inlet channel 12 and the second oil inlet channel 22 are sealed together by the sealing ring 40. The sealing ring 40 can prevent hydraulic oil from leaking from the connection between the slider body 10 and the pressure block 20, ensuring that the oil chamber pressure can be effectively established and maintained.

[0049] Furthermore, a third limiting groove 121 is provided between the first oil inlet channel 12 and the second oil inlet channel 22. The third limiting groove 121 is provided on at least one of the first curved surface 23 and the second curved surface 111, and the sealing ring 40 is at least partially disposed within the third limiting groove 121. That is, the third limiting groove 121 can be provided on the first curved surface 23, on the second curved surface 111, or on both the first curved surface 23 and the second curved surface 111. When sealing the first oil inlet channel 12 and the second oil inlet channel 22, the sealing ring 40 is at least partially located within the third limiting groove 121. Through the compression between the slider body 10 and the pressure block 20, the connection between the first oil inlet channel 12 and the second oil inlet channel 22 can be sealed, preventing hydraulic oil leakage. Furthermore, the third limiting groove 121 can restrict the displacement of the sealing ring 40, preventing hydraulic oil leakage caused by the displacement of the sealing ring 40.

[0050] Furthermore, the slider body 10 also has a second side 104 and a third side 105 arranged opposite to each other. The second side 104 and the third side 105 are located on both sides of the first side 103. The second side 104 is provided with a first throttle 51, and the third side 105 is provided with a second throttle 52. The upper surface 101 is provided with a total oil inlet 1011 and an inwardly recessed second pressure-bearing oil chamber 1012. The lower surface 102 is provided with an inwardly recessed third pressure-bearing oil chamber 1021. Both the first throttle 51 and the second throttle 52 are provided with a throttle inlet 53 and a throttle outlet 54.

[0051] The first throttle 51 has its throttle inlet 53 connected to the main oil inlet 1011, its throttle outlet 54 connected to the first oil inlet channel 12, its throttle inlet 53 connected to the main oil inlet 1011, and its throttle outlet 54 connected to the second pressure-bearing oil chamber 1012 and the third pressure-bearing oil chamber 1021, respectively.

[0052] In this embodiment, the first throttle 51 and the second throttle 52 can control the oil supply to different oil chambers respectively. Specifically, the first throttle 51 controls the oil supply to the first pressure-bearing oil chamber 21 independently. That is, hydraulic oil enters the first throttle 51 through the connection between the main oil inlet 1011 and the throttle inlet 53 of the first throttle 51 for throttling, and then enters the first oil inlet channel 12 through the throttle outlet 54 of the first throttle 51. Then, it enters the first oil inlet channel 12 through the first oil inlet channel 12 and the second oil inlet channel 22 in sequence into the first pressure-bearing oil chamber 21 of the pressure block 20, thereby realizing the oil supply to the first pressure-bearing oil chamber 21 so that the first pressure-bearing oil chamber 21 can adapt to the dynamic adjustment of the guide rail verticality deviation. The second throttle 52 simultaneously controls the oil supply to the second pressure-bearing oil chamber 1012 and the third pressure-bearing oil chamber 1021, so that pressure oil films are formed in the second pressure-bearing oil chamber 1012 and the third pressure-bearing oil chamber 1021 respectively. The pressure oil film in the second pressure-bearing oil chamber 1012 bears the load on the upper surface 101 of the slider body 10, and the pressure oil film in the third pressure-bearing oil chamber 1021 bears the load on the lower surface of the slider body 10. Hydraulic oil enters the second throttle 52 through the connection between the main oil inlet 1011 and the throttle inlet 53 of the second throttle 52 for throttling, and then enters the second pressure-bearing oil chamber 1012 and the third pressure-bearing oil chamber 1021 through the throttle outlet 54 of the second throttle 52 respectively, so as to ensure the establishment of pressure oil films in the second pressure-bearing oil chamber 1012 and the third pressure-bearing oil chamber 1021, ensure the support of the hydrostatic slider structure and multiple contact surfaces of the slider, and improve the stability of the hydraulic system.

[0053] Because the two throttles operate independently, they can automatically adjust the flow rate and pressure of each oil chamber according to the load differences in different oil chambers through the throttling effect. When the load of a certain oil chamber increases and the oil chamber pressure rises, the corresponding throttle will reduce the inflow flow to avoid excessive pressure drop and maintain the oil film thickness. When the load decreases and the oil chamber pressure decreases, the corresponding throttle will increase the flow to replenish the oil and maintain the stability of the oil film. The second pressure-bearing oil chamber 1012 on the upper surface 101 of the slider body 10, the third pressure-bearing oil chamber 1021 on the lower surface 102, and the first pressure-bearing oil chamber 21 of the pressure block 20 can form a multi-dimensional support point. After the pressure of each oil chamber is stabilized by the corresponding throttle, a uniformly distributed pressure oil film can be formed, which transforms the rigid contact between the hydrostatic slider structure and the guide rail into liquid friction, greatly reducing the friction coefficient and improving the smoothness of the hydrostatic slider body movement while reducing wear. The flow is diverted to the first throttle 51 and the second throttle 52 through a total oil inlet 1011, eliminating the need to set an external oil inlet for each oil chamber and reducing the risk of oil circuit interference. Throttling devices typically employ methods such as orifice throttling and capillary throttling, inherently possessing a damping effect. When the hydraulic system experiences pressure changes at the main inlet 1011 due to pump source pressure fluctuations or sudden external load changes (e.g., sudden acceleration of the hydrostatic slider structure), the throttling device can buffer these fluctuations through non-linear flow regulation, preventing drastic pressure changes in each oil chamber. For example, when the pressure at the main inlet 1011 increases instantaneously, the throttling device limits the rate of increase in flow into the corresponding oil chamber, preventing an excessively thick oil film caused by a sudden pressure surge. Conversely, when the pressure drops sharply, the throttling device reduces flow attenuation, maintaining the basic thickness of the oil film in the corresponding oil chamber and ensuring support stability.

[0054] like Figure 5 and Figure 7As shown, the first oil inlet channel 12 has a first oil inlet 122 and a first oil outlet 123 arranged opposite to each other, and the second oil inlet channel 22 has a second oil inlet 221 and a second oil outlet 222 arranged opposite to each other. The first oil inlet 122 is located on the second side 104 of the slider body 10 and communicates with the throttle outlet 54 of the first throttle 51. The first oil outlet 123 is located on the second curved surface 111 of the mounting groove 11. The second oil inlet 221 is located on the first curved surface 23 of the pressure block 20. The first oil outlet 123 communicates with the second oil inlet 221. The second oil outlet 222 is located in the first pressure-bearing oil chamber 21 and communicates with the first pressure-bearing oil chamber 21. By setting the first oil inlet 122 on the second side 104 of the slider body 10, convenient communication with the first throttle 51 is achieved, shortening the transmission path of hydraulic oil from the first throttle 51 to the pressure block 20, reducing pressure loss, and improving the system response speed. The first oil outlet 123 and the second oil inlet 221 are respectively located on the second curved surface 111 and the first curved surface 23. With the use of the sealing ring 40 and the fixed connection components, even when the pressure block 20 rotates slightly relative to the slider body 10, the two can maintain a connected state, effectively preventing hydraulic oil leakage and ensuring the pressure stability of the first pressure chamber 21.

[0055] Furthermore, the slider body 10 is also provided with a third oil inlet channel 13, a fourth oil inlet channel 14, a fifth oil inlet channel 15 and a sixth oil inlet channel 16. The total oil inlet 1011 is connected to the throttle inlet 53 of the first throttle 51 through the third oil inlet channel 13. The total oil inlet 1011 is connected to the throttle inlet 53 of the second throttle 52 through the fourth oil inlet channel 14. The throttle outlet 54 of the second throttle 52 is connected to the second pressure-bearing oil chamber 1012 through the fifth oil inlet channel 15. The throttle outlet 54 of the second throttle 52 is connected to the third pressure-bearing oil chamber 1021 through the sixth oil inlet channel 16.

[0056] like Figure 5As shown, the third oil inlet channel 13 has a third oil inlet 131 and a third oil outlet 132 arranged opposite to each other; the fourth oil inlet channel 14 has a fourth oil inlet 141 and a fourth oil outlet 142 arranged opposite to each other; the fifth oil inlet channel 15 has a fifth oil inlet 151 and a fifth oil outlet 152 arranged opposite to each other; and the sixth oil inlet channel 16 has a sixth oil inlet 161 and a sixth oil outlet 162 arranged opposite to each other. The third oil inlet 131 is located near and connected to the main oil inlet 1011; the third oil outlet 132 is located on the second side 104 of the slider body 10 and is connected to the throttle inlet 53 of the first throttle 51; the fourth oil inlet 141 is located near and connected to the main oil inlet 1011; and the fourth oil outlet 142 is located on the third side 105 of the slider body 10 and is connected to the throttle inlet 53 of the second throttle 52; the fifth ... sixth oil outlet 16 is located on the second side 105 of the slider body 10 and is connected to the throttle inlet 53 of the second throttle 52; the fifth oil inlet 141 is located near and connected to the main oil inlet 1011; and the sixth oil outlet 16 is located on the third side 105 of the slider body 10 and is connected to the throttle inlet 53 Oil port 151 is located on the third side 105 of the slider body 10 and communicates with the throttle outlet 54 of the second throttle 52. Oil port 152 is located in the second pressure-bearing oil chamber 1012 and communicates with the second pressure-bearing oil chamber 1012. Oil port 161 is located on the third side 105 of the slider body 10 and communicates with the throttle outlet 54 of the second throttle 52. Oil port 162 is located in the third pressure-bearing oil chamber 1021 and communicates with the third pressure-bearing oil chamber 1021. First, the third oil inlet 131 and the fourth oil inlet 141 are positioned close to the main oil inlet 1011, and each oil outlet directly connects to the corresponding throttle or pressure-bearing oil chamber. This achieves a reasonable arrangement of the oil circuit, shortens the transmission distance of the hydraulic oil, reduces pressure loss and flow resistance, and improves system efficiency. Second, the oil circuit driving the first pressure-bearing oil chamber 21 is separated from the oil circuit driving the second pressure-bearing oil chamber 1012 and the third pressure-bearing oil chamber 1021 through independent interfaces. This, combined with the throttle, enables independent pressure control in different zones, allowing different oil chambers to establish a suitable pressure oil film according to load requirements, enhancing stability and load-bearing capacity under complex working conditions. Simultaneously, the interfaces are concentrated on the exposed side of the slider body 10, facilitating machining, assembly, and maintenance, reducing production and maintenance costs. Furthermore, the independent branch design reduces oil circuit cross-interference, improving system reliability.

[0057] Optionally, in this embodiment, the first throttle 51 and the second throttle 52 are fixed to the second side 104 and the third side 105 of the slider body 10 by throttle fixing components 55. The throttle fixing components 55 include, but are not limited to, connecting screws, connecting studs and connecting bolts. The second side 104 and the third side 105 of the slider body 10 are provided with a plurality of throttle fixing holes 17 that cooperate with connecting screws, connecting studs or connecting bolts, so as to ensure that the first throttle 51 and the second throttle 52 can be easily installed or removed.

[0058] Furthermore, a guide plate 60 is provided between the second throttle 52 and the third side 105 of the slider body 10. The guide plate 60 is provided with a seventh oil inlet 61 and a seventh oil outlet 62. The seventh oil inlet 61 is used to connect the fourth oil outlet 142 on the slider body 10 with the throttle inlet 53 of the second throttle 52. The side of the seventh oil outlet 62 near the second throttle 52 is connected to the throttle outlet 54 of the second throttle 52. An annular guide groove 63 is provided on the side of the guide plate 60 near the third side 105 of the slider body 10. The seventh oil outlet 62 is connected to the annular guide groove 63. When the second throttle 52 is fixed on the third side 105 of the slider body 10, the fifth oil inlet 151 on the third side 105 is connected to the annular guide groove 63, and the sixth oil inlet 161 on the third side 105 is connected to the seventh oil outlet 62 of the guide plate 60. The annular guide groove 63 efficiently diverts the hydraulic oil flowing out of the throttle outlet 54 of the second throttle 52 to the fifth oil inlet 151 and the sixth oil inlet 161. It can supply oil to the second pressure-bearing oil chamber 1012 and the third pressure-bearing oil chamber 1021 simultaneously without complicated internal oil circuit branches, which simplifies the oil circuit processing difficulty of the slider body, ensures the stable establishment of the pressure oil film in the second pressure-bearing oil chamber 1012 and the third pressure-bearing oil chamber 1021, and improves the reliability of the hydraulic system.

[0059] Preferably, in this embodiment, a plurality of mounting holes 18 for mounting moving parts are provided through the upper surface 101 and the lower surface 102 of the slider body 10. When the slider body 10 slides relative to the guide rail of the machine tool, it can drive the moving parts to move in the target direction, thus ensuring the reliability of the hydrostatic slider structure.

[0060] On the other hand, this application also discloses a hydraulic system including the aforementioned hydrostatic slider structure. Therefore, this hydraulic system incorporates all the technical effects of the aforementioned hydrostatic slider structure. Since the technical effects of the hydrostatic slider structure have already been described in detail above, they will not be repeated here.

[0061] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0062] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0063] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydrostatic slider structure, characterized in that, include: The slider body (10) has an upper surface (101), a lower surface (102) and a first side surface (103) located between the upper surface (101) and the lower surface (102). The first side surface (103) is provided with a mounting groove (11). The slider body (10) is provided with a first oil inlet channel (12) communicating with the mounting groove (11). The pressure block (20) is installed in the mounting groove (11) and can rotate relative to the slider body (10). The side of the pressure block (20) away from the slider body (10) is provided with an inwardly recessed first pressure-bearing oil cavity (21). The pressure block (20) is provided with a second oil inlet channel (22) connecting the first oil inlet channel (12) and the first pressure-bearing oil cavity (21).

2. The hydrostatic slider structure according to claim 1, characterized in that, The pressure block (20) is fitted to the inner wall of the mounting groove (11). The side of the pressure block (20) near the mounting groove (11) is provided with a first curved surface (23), and the inner wall of the mounting groove (11) is provided with a second curved surface (111) that slides with the first curved surface (23).

3. The hydrostatic slider structure according to claim 2, characterized in that, The pressure-bearing block (20) has a semi-cylindrical structure or a hemispherical structure.

4. The hydrostatic slider structure according to claim 2, characterized in that, A fixed connection component is provided between the slider body (10) and the pressure block (20), and the slider body (10) and the pressure block (20) are rotatably connected through the fixed connection component.

5. The hydrostatic slider structure according to claim 4, characterized in that, The fixed connection component includes: A magnetic connecting component (30) includes a magnetic element (31) and a first limiting groove (32). The first limiting groove (32) is disposed on the first curved surface (23) or the second curved surface (111). The magnetic element (31) is disposed within the first limiting groove (32). The slider body (10) and the pressure block (20) are both magnetically connected to the magnetic element (31). The ball head connecting component includes a ball head and a second limiting groove. One of the ball head and the second limiting groove is disposed on the first curved surface (23), and the other is disposed on the second curved surface (111). The ball head is rotatably disposed in the second limiting groove.

6. The hydrostatic slider structure according to claim 2, characterized in that, A sealing ring (40) is provided between the first oil inlet channel (12) and the second oil inlet channel (22), and the first oil inlet channel (12) and the second oil inlet channel (22) are sealed together by the sealing ring (40).

7. The hydrostatic slider structure according to claim 6, characterized in that, A third limiting groove (121) is provided between the first oil inlet channel (12) and the second oil inlet channel (22). The third limiting groove (121) is provided on at least one of the first curved surface (23) and the second curved surface (111). The sealing ring (40) is at least partially provided in the third limiting groove (121).

8. The hydrostatic slider structure according to claim 1, characterized in that, The slider body (10) also has a second side (104) and a third side (105) arranged opposite to each other. The second side (104) and the third side (105) are located on both sides of the first side (103). The second side (104) is provided with a first throttle (51), and the third side (105) is provided with a second throttle (52). The upper surface (101) is provided with a total oil inlet (1011) and an inwardly recessed second pressure-bearing oil chamber (1012). The lower surface (102) is provided with an inwardly recessed third pressure-bearing oil chamber (1021). The first throttle (51) and the second throttle (52) are both provided with a throttle inlet (53) and a throttle outlet (54). The first throttle (51) has its throttle inlet (53) connected to the main inlet (1011), its throttle outlet (54) connected to the first inlet channel (12), its throttle inlet (53) connected to the main inlet (1011), and its throttle outlet (54) connected to the second pressure chamber (1012) and the third pressure chamber (1021), respectively.

9. The hydrostatic slider structure according to claim 8, characterized in that, The slider body (10) is also provided with a third oil inlet channel (13), a fourth oil inlet channel (14), a fifth oil inlet channel (15) and a sixth oil inlet channel (16). The total oil inlet (1011) is connected to the throttle inlet (53) of the first throttle (51) through the third oil inlet channel (13). The total oil inlet (1011) is connected to the throttle inlet (53) of the second throttle (52) through the fourth oil inlet channel (14). The throttle outlet (54) of the second throttle (52) is connected to the second pressure-bearing oil chamber (1012) through the fifth oil inlet channel (15). The throttle outlet (54) of the second throttle (52) is connected to the third pressure-bearing oil chamber (1021) through the sixth oil inlet channel (16).

10. A hydraulic system, characterized in that, Includes the hydrostatic slider structure as described in any one of claims 1 to 9.

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