Throttling devices and static pressure equipment

Abstract

This application discloses a throttle and a static pressure device. The throttle includes a main body, a diaphragm, and an adjusting assembly. The main body includes a first main body and a second main body. The first main body has a first cavity, an oil inlet, an oil outlet, a first oil passage, and a second oil passage. The second main body has a second cavity and a third oil passage. A throttling boss is provided within the second cavity, and the throttling boss has an installation channel. The diaphragm and the first cavity form a pressure stabilizing cavity, and the diaphragm and the second cavity form an adjusting cavity and, together with the throttling boss, form a replenishing oil cavity. The adjusting assembly is movably disposed within the installation channel and is configured to pre-press the diaphragm to create a predetermined gap between the diaphragm and the throttling boss. This application solves the problem in the prior art that throttles cannot adjust the pre-pressure of the throttle diaphragm according to the initial load of the static pressure device.

Description

Technical Field

[0001] This application relates to the field of liquid hydrostatic technology, and more specifically, to a throttle and hydrostatic device. Background Technology

[0002] Hydrostatic pressure systems are widely used in precision machining equipment. The throttling device is a key component of the hydrostatic pressure system, and its throttling performance greatly affects the oil film stiffness, load-bearing capacity, and accuracy of the system. Among these, the diaphragm throttling device is the most widely used.

[0003] However, existing membrane throttling devices cannot adjust the pre-pressure of the throttling membrane according to the different initial loads of the equipment during operation. As a result, standardized throttling devices cannot be universally applicable to different initial load equipment. It is necessary to calculate and match the optimal application range of the throttling device for different initial load equipment, which results in a long design and production cycle and poor versatility. Summary of the Invention

[0004] The main objective of this application is to provide a throttle and a static pressure device to solve the problem that the throttle in the prior art cannot adjust the pre-pressure of the throttle diaphragm according to the different initial loads of the static pressure device.

[0005] According to one aspect of this application, a throttle is provided, comprising:

[0006] The main body component includes a first main body part and a second main body part that are abutted to each other. The first main body part has a first cavity on the side near the second main body part. The first main body part also has an oil inlet hole, an oil outlet hole, a first oil channel and a second oil channel. The second main body part has a second cavity on the side near the first main body part. A throttling boss is provided in the center of the second cavity. An installation channel is provided on the throttling boss. The installation channel extends from the surface of the throttling boss to the side of the second main body part away from the first main body part. The second main body part also has a third oil channel.

[0007] A diaphragm sheet is disposed between the first main body and the second main body. The diaphragm sheet and the first cavity form a pressure stabilizing cavity. The diaphragm sheet and the space outside the throttling boss in the second cavity form an adjusting cavity. The diaphragm sheet and the space inside the throttling boss form an oil replenishing cavity. The oil replenishing cavity is connected to the mounting channel.

[0008] An adjustment component is movably disposed within the mounting channel, with one end of the adjustment component extending into the oil filling chamber and abutting against the diaphragm. The adjustment component is configured to pre-compress the diaphragm to create a predetermined gap between the diaphragm and the throttling boss, thereby enabling communication between the adjustment chamber and the oil filling chamber.

[0009] The first oil channel, the second oil channel, and the third oil channel are all connected to the oil inlet, and the first oil channel is connected to the oil outlet, the second oil channel is connected to the pressure stabilizing chamber, the third oil channel is connected to the regulating chamber, and the oil replenishment chamber is connected to the oil outlet.

[0010] Furthermore, within the projection along the thickness direction of the throttle, the projection of the mounting channel is located at the center of the thin film projection.

[0011] Furthermore, the adjustment assembly includes an adjustment post and a set screw. The adjustment post is movably disposed within the installation channel, and one end of the adjustment post extends into the oil replenishment chamber and abuts against the diaphragm. The set screw is disposed at the end of the adjustment post away from the diaphragm and abuts against the adjustment post.

[0012] Furthermore, the end of the adjusting column near the diaphragm sheet is provided with an arc surface.

[0013] Furthermore, a limiting protrusion is provided in the installation channel, and an outer flange is provided on the adjusting column for abutting against the limiting protrusion.

[0014] Furthermore, the first oil channel is arranged around the first main body on the side of the first main body near the second main body, and the first main body is also provided with a first oil outlet channel, the two ends of the first oil outlet channel being connected to the first oil channel and the oil outlet hole, respectively.

[0015] Furthermore, the third oil channel is disposed on the side of the second main body near the first main body, and the second main body is also provided with a second oil inlet channel, the two ends of which are respectively connected to the third oil channel and the regulating cavity.

[0016] Furthermore, the throttle is also provided with a second oil outlet channel, which is disposed through the first main body and the second main body. The first main body is also provided with a third oil outlet channel, the two ends of which are respectively connected to the oil outlet hole and the second oil outlet channel. The second main body is also provided with a fourth oil outlet channel, the two ends of which are respectively connected to the oil replenishment chamber and the second oil outlet channel.

[0017] Furthermore, an annular step is provided on the inner wall surface of the first cavity, the annular step being arranged circumferentially around the first main body, the thin film being located within the first cavity and the outer edge of the thin film abutting against the annular step; and / or,

[0018] A sealing groove is provided on the side of the installation channel near the oil filling chamber, and a first sealing ring is provided in the sealing groove; and / or,

[0019] A second sealing ring is provided between the first main body portion and the second main body portion; and / or,

[0020] The first main body and the second main body are fixedly connected by bolts.

[0021] On the other hand, this application also provides a static pressure device, which includes the above-mentioned throttle.

[0022] In this application, during the actual manufacturing of the throttle, the first main body and the second main body can be attached together, and a diaphragm sheet is placed between the first and second main bodies. The diaphragm sheet, together with the first cavity, forms a pressure-stabilizing chamber. Since a throttling boss is located in the center of the second cavity, the diaphragm sheet, together with the space outside the throttling boss in the second cavity, forms an adjusting chamber, and together with the space inside the throttling boss, forms an oil-replenishing chamber. Subsequently, the adjusting component is installed in the mounting channel, extending from the mounting channel into the oil-replenishing chamber to apply a predetermined pressure to the diaphragm sheet. This causes the diaphragm sheet to bend and deform towards the first cavity, creating a predetermined gap between the diaphragm sheet and the throttling boss, thus connecting the adjusting chamber and the oil-replenishing chamber. This configuration allows for adjustment of the diaphragm sheet's pre-pressure according to the initial load of the equipment, enabling a standardized throttle for use with different initial loads, shortening the production cycle, and providing good versatility. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0024] Figure 1 This is an exploded view of the throttle device disclosed in the embodiments of this application;

[0025] Figure 2 The appendices disclosed in the embodiments of this application Figure 1 Cross-sectional view of the throttle body;

[0026] Figure 3 This is a cross-sectional view of the throttle device disclosed in the embodiments of this application from a first perspective;

[0027] Figure 4 This is a cross-sectional view of the throttle device disclosed in the embodiments of this application from a second perspective;

[0028] Figure 5 This is a cross-sectional view of the thin film sheet and the throttling boss as disclosed in the embodiments of this application when they are completely separated;

[0029] Figure 6 This is a cross-sectional view of the thin film sheet and the throttling boss as disclosed in the embodiments of this application;

[0030] Figure 7 This is a schematic diagram of the structure of the first main body disclosed in the embodiments of this application;

[0031] Figure 8 This is a schematic diagram of the structure of the second main body disclosed in the embodiments of this application;

[0032] Figure 9 This is a schematic diagram of the structure of the throttle device and static pressure equipment disclosed in the embodiments of this application.

[0033] The above figures include the following reference numerals:

[0034] 10. Main body component; 101. Pressure stabilizing chamber; 102. Adjusting chamber; 103. Oil replenishing chamber; 104. Predetermined gap; 11. First main body; 111. First cavity; 112. Oil inlet; 113. Oil outlet; 114. First oil passage; 115. Second oil passage; 116. First oil outlet passage; 117. Third oil outlet passage; 118. Annular step; 12. Second main body; 121. Second cavity; 122. Throttling protrusion 123. Installation channel; 124. Third oil channel; 125. Second oil inlet channel; 126. Fourth oil outlet channel; 127. Sealing groove; 128. Limiting protrusion; 13. Second oil outlet channel; 20. Diaphragm sheet; 30. Adjustment component; 31. Adjustment column; 311. Arc surface; 312. Outer flange; 32. Set screw; 40. First sealing ring; 50. Second sealing ring; 60. Support component; 61. Oil cavity; 70. Sliding component. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] 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 this application. 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.

[0037] 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 application. 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.

[0038] As mentioned in the background section, existing diaphragm flow regulators cannot adjust their flow rate according to changes in oil supply pressure, load pressure, or other operating conditions during operation, thus failing to adapt to operating conditions and workloads. To address this, the inventors of this application have designed a novel flow regulator that solves the problem of existing flow regulators being unable to adjust the pre-pressure of the diaphragm based on different initial loads of the hydrostatic equipment. The flow regulator of this application will be described in detail below with reference to the accompanying drawings.

[0039] See Figures 1 to 9 As shown, according to an embodiment of this application, a throttle is provided, which includes a main body component 10, a diaphragm sheet 20, and an adjustment assembly 30.

[0040] Specifically, the main body component 10 includes a first main body portion 11 and a second main body portion 12 that are abutted against each other. The first main body portion 11 has a first cavity 111 on the side closest to the second main body portion 12. The first main body portion 11 also has an oil inlet 112, an oil outlet 113, a first oil passage 114, and a second oil passage 115. The second main body portion 12 has a second cavity 121 on the side closest to the first main body portion 11. A throttling boss 122 is located in the center of the second cavity 121. An installation channel 123 is provided on the throttling boss 122, extending from the surface of the throttling boss 122 to the side of the second main body portion 12 opposite to the first main body portion 11. A third oil passage 124 is also provided on the second main body portion 12. A diaphragm sheet 20 is disposed between the first main body portion 11 and the second main body portion 12. The diaphragm sheet 20 and the first cavity 111 enclose a pressure-stabilizing cavity 101. The diaphragm sheet 20 and the second cavity 12... In section 1, a regulating cavity 102 is formed by the space outside the throttling boss 122, and an oil replenishment cavity 103 is formed by the space between the diaphragm 20 and the space inside the throttling boss 122, and the oil replenishment cavity 103 is connected to the installation channel 123; the regulating component 30 is movably disposed in the installation channel 123, and one end of the regulating component 30 extends into the oil replenishment cavity 103 and abuts against the diaphragm 20, and the regulating component 30 is configured to pre-compress the diaphragm 20 so that the diaphragm 20 and the diaphragm 20 are in contact with the throttling boss 122. The throttling bosses 122 have a predetermined gap 104 between them, which connects the regulating chamber 102 and the oil replenishing chamber 103. The first oil channel 114, the second oil channel 115 and the third oil channel 124 are all connected to the oil inlet 112. The first oil channel 114 is connected to the oil outlet 113, the second oil channel 115 is connected to the pressure stabilizing chamber 101, the third oil channel 124 is connected to the regulating chamber 102, and the oil replenishing chamber 103 is connected to the oil outlet 113.

[0041] Combination Figures 1 to 4As shown, in this embodiment, the main body component 10 includes a first main body portion 11 and a second main body portion 12. During actual fabrication of the throttle, the first main body portion 11 and the second main body portion 12 can be attached together, and a thin film 20 is disposed between the first main body portion 11 and the second main body portion 12. In this case, the thin film 20 and the first cavity 111 will form a voltage-stabilizing cavity 101. Furthermore, since a throttling boss 122 is provided in the center of the second cavity 121, the thin film 20 will also interact with the area outside the throttling boss 122 in the second cavity 121. The space within the throttling boss 122 forms an adjustment cavity 102, and the space within the throttling boss 122 forms an oil replenishment cavity 103. The adjustment assembly 30 is then installed within the installation channel 123, extending from the installation channel 123 into the oil replenishment cavity 103 to apply a predetermined pressure to the diaphragm 20. This causes the diaphragm 20 to bend and deform towards the first cavity 111, resulting in a predetermined gap 104 between the diaphragm 20 and the throttling boss 122, thus connecting the adjustment cavity 102 and the oil replenishment cavity 103. This configuration allows for adjustment of the pre-pressure of the diaphragm 20 according to the initial load of the equipment, enabling a standardized throttling device to be used with different initial loads, shortening the production cycle, and providing good versatility.

[0042] It is worth noting that, in this embodiment, "the adjusting component 30 is movably disposed within the mounting channel 123" means that during the process of applying pre-pressure to the diaphragm 20 using the adjusting component 30 to create a predetermined gap 104 between the diaphragm 20 and the throttling boss 122, if the width of the predetermined gap 104 is too wide, the adjusting component 30 can be moved away from the diaphragm 20 to reduce the pre-pressure applied to the diaphragm 20; conversely, if the width of the predetermined gap 104 is too narrow, the adjusting component 30 can be moved closer to the diaphragm 20 to increase the pre-pressure applied to the diaphragm 20. In other words, the adjusting component 30 in this embodiment can control the magnitude of the pre-pressure applied to the diaphragm 20, thereby ensuring a suitable adjusting gap between the diaphragm 20 and the throttling boss 122.

[0043] Meanwhile, since the first oil channel 114, the second oil channel 115, and the third oil channel 124 in this embodiment are all connected to the oil inlet 112, and the first oil channel 114 is connected to the oil outlet 113, the second oil channel 115 is connected to the pressure stabilizing chamber 101, the third oil channel 124 is connected to the regulating chamber 102, and the oil replenishment chamber 103 is connected to the oil outlet 113, when hydraulic oil is introduced into the throttle, the hydraulic oil enters the first main body 11 from the oil inlet 112. After entering the first main body 11, the hydraulic oil is divided into three streams. The first stream flows from the oil inlet 112 to the first oil... The first oil channel 114 flows to the oil outlet 113; the second oil flows from the oil inlet 112 to the second oil channel 115 and enters the pressure stabilizing chamber 101; the third oil flows from the oil inlet 112 to the third oil channel 124 and enters the regulating chamber 102. Due to the predetermined gap 104 between the diaphragm 20 and the throttling boss 122, the regulating chamber 102 is connected to the replenishing chamber 103. The hydraulic oil entering the regulating chamber 102 will flow into the replenishing chamber 103 and flow from the replenishing chamber 103 to the oil outlet 113.

[0044] See Figure 9 As shown, the hydraulic station continuously outputs constant-pressure hydraulic oil, and the Ps value can be read through a pressure gauge. The Ps value can be adjusted to the design value through a regulating valve. Since the hydrostatic device includes a support member 60 and a sliding member 70, and the support member 60 has an oil chamber 61, when the throttle of this application is installed on the hydrostatic device, the hydraulic station is connected to the oil inlet 112 of the throttle to provide hydraulic oil, and the oil outlet 113 is connected to the oil chamber 61 to provide hydraulic oil to the oil chamber 61. In the initial state (i.e., when the pressure in oil chamber 61 is initially established), for the sliding member 70 and oil chamber 61, under the weight of the sliding member 70, there is no gap between the support member 60 and the sliding member 70. At this time, the hydraulic resistance Rh of oil chamber 61 approaches infinity. When the product of the oil supply pressure Ps and the effective area Ae of oil chamber 61 equals the weight of the sliding member 70, the sliding member 70 floats up. After the sliding member 70 floats up, there is a gap h between the sliding member 70 and oil chamber 61, at which time the hydraulic resistance Rh of oil chamber 61 decreases. For the predetermined gap 104 between the diaphragm 20 and the throttling boss 122, when there is no gap between oil chamber 61 connected to oil outlet 113 and the sliding member 70, the pressure Pr of oil chamber 61 is equal to the oil supply pressure Ps of oil inlet 112. At this time, the width of the predetermined gap 104 is at its maximum value (e.g., ...). Figure 5As shown, during the process of hydraulic oil flowing from the outlet 113 to the oil chamber 61 to float the sliding member 70, the pressure Pr in the oil chamber 61 decreases. The decrease in pressure Pr causes the pressure in the replenishing oil chamber 103 to decrease, resulting in a large pressure difference between the pressure stabilizing chamber 101 and the replenishing oil chamber 103. Consequently, the diaphragm 20 is pressed towards the replenishing oil chamber 103 under the action of the pressure stabilizing chamber 101 to close the predetermined gap 104 between the diaphragm 20 and the throttling boss 122 (as shown). Figure 6 As shown), this causes the regulating chamber 102 to disconnect from the oil replenishment chamber 103. At this time, only the first oil passage 114 and the oil outlet 113 are in a connected state, that is, only the hydraulic oil in the first oil passage 114 flows to the oil outlet 113 and flows into the oil chamber 61 from the oil outlet 113.

[0045] When the load F on the sliding member 70 increases, the gap h between the sliding member 70 and the support member 60 tends to decrease, causing the hydraulic resistance Rh of the oil chamber 61 to increase. This results in an increase in the pressure Pr in the oil chamber 61 of the support member 60. The increase in pressure Pr leads to an increase in the pressure in the oil replenishment chamber 103, which in turn reduces the pressure difference between the pressure stabilizing chamber 101 and the oil replenishment chamber 103. Consequently, the pressure on the diaphragm 20 from the pressure stabilizing chamber 101 decreases, reducing the deformation of the diaphragm 20 and opening the predetermined gap 104 between the diaphragm 20 and the throttling boss 122. This allows the regulating chamber 102 to connect with the replenishing chamber 103. At this time, not only does the hydraulic oil in the first oil passage 114 flow to the oil outlet 113 and into the oil chamber 61, but the hydraulic oil in the regulating chamber 102 also flows to the replenishing chamber 103 and from the replenishing chamber 103 to the oil outlet 113 and into the oil chamber 61. The increase in the amount of oil discharged from the oil outlet 113 can resist the tendency of the gap h between the sliding member 70 and the support member 60 to decrease due to the increase in load, and ultimately causes the gap between the sliding member 70 and the support member 60 to change towards restoring the original gap h.

[0046] When the load F on the sliding member 70 reaches its maximum value, the oil supply pressure Ps of the oil inlet 112 equals the pressure Pr of the oil chamber 61. At this time, the predetermined gap 104 between the diaphragm 20 and the throttling boss 122 reaches its maximum value, thereby making the hydraulic oil flow rate reach its maximum value. When the load F on the sliding member 70 decreases from its maximum value, the gap h between the sliding member 70 and the support member 60 tends to increase, which leads to a decrease in the hydraulic resistance Rh of the oil chamber 61, and consequently, a decrease in the pressure Pr of the oil chamber 61 of the support member 60. The decrease in force Pr reduces the pressure in the oil replenishment chamber 103, thereby increasing the pressure difference between the pressure stabilizing chamber 101 and the oil replenishment chamber 103. Consequently, the diaphragm 20 deforms towards the oil replenishment chamber 103 under the action of the pressure stabilizing chamber 101, reducing the predetermined gap 104. At this time, the reduction in the amount of oil discharged from the oil outlet 113 can resist the tendency for the gap h between the sliding member 70 and the support member to increase due to the decrease in load. Ultimately, the gap between the sliding member 70 and the support member 60 tends to return to the original gap h.

[0047] Based on the above, it can be seen that before the hydraulic station supplies hydraulic oil, under the pre-pressure action of the regulating component 30, the diaphragm 20 can be bent and deformed toward the pressure stabilizing chamber 101, thereby creating a predetermined gap 104 between the diaphragm 20 and the throttling boss 122, so that the regulating chamber 102 and the oil replenishing chamber 103 are connected. When the hydraulic station starts supplying hydraulic oil, the hydraulic oil enters through the inlet port 112 and flows to the first oil channel 114, the second oil channel 115, and the third oil channel 124 respectively. The hydraulic oil in the first oil channel 114 flows directly to the outlet port 113 and then into the oil chamber 61 of the support member 60. The hydraulic oil in the second oil channel 115 flows directly to the pressure stabilizing chamber 101. The hydraulic oil in the third oil channel 124 flows directly to the regulating chamber 102 and then flows into the replenishing chamber 103 through the predetermined gap 104. From the replenishing chamber 103, it flows to the outlet port 113 and then into the oil chamber 61 of the support member. During this process, the hydraulic oil in the oil chamber 61 supports the sliding member 70, creating a gap h between the sliding member 70 and the support member 60. At this time, the hydraulic resistance Rh of the oil chamber 61 decreases as the gap h increases, causing the pressure Pr of the oil chamber 61 to decrease. This leads to a decrease in the pressure of the replenishing oil chamber 103, which in turn causes the pressure in the stabilizing chamber 101 to be greater than the pressure in the replenishing oil chamber 103, pushing the diaphragm 20 upward to press against the throttling boss 122. This causes the regulating chamber 102 to disconnect from the replenishing oil chamber 103, and the hydraulic oil in the third oil channel 124 will not flow to the outlet. Only the hydraulic oil in the first oil channel 114 flows to the outlet. When there is a load on the sliding member 70, the gap h between the sliding member 70 and the support member 60 will decrease under the action of the load. At this time, the hydraulic resistance Rh of the oil chamber 61 increases as the gap h decreases, resulting in a larger pressure Pr in the oil chamber 61, which in turn increases the pressure in the oil replenishment chamber 103. Consequently, the pressure in the oil replenishment chamber 103 tends to be equal to the pressure in the pressure stabilizing chamber 101. At this time, due to the pre-pressure effect of the adjustment component 30 on the diaphragm 20, the diaphragm 20 will separate from the throttling boss 122 and have a predetermined gap 104, thereby connecting the adjustment chamber 102 and the oil replenishment chamber 103. The hydraulic oil in the third oil channel 124 will enter the oil replenishment chamber 103 from the adjustment chamber 102 and flow from the oil replenishment chamber 103 to the oil outlet 113. At the same time, the hydraulic oil in the first oil channel 114 also flows to the oil outlet 113, ultimately increasing the oil output of the oil outlet 113. In other words, the throttle in this embodiment can adjust its own flow rate according to changes in oil supply pressure or load pressure, thereby providing sufficient flow and support for the hydrostatic equipment and effectively ensuring the working stability and reliability of the hydrostatic equipment.

[0048] Further, see Figure 1As shown, in this embodiment, within the projection along the thickness direction of the throttle, the projection of the mounting channel 123 is located at the center of the projection of the thin film 20. It should be noted that in this embodiment, the "thickness direction of the throttle" refers to the area within the thickness direction of the throttle. Figure 2 The direction indicated by the letter X in the middle.

[0049] Specifically, since the adjustment component 30 in this embodiment is disposed within the mounting channel 123, and one end of the adjustment component 30 extends into the oil replenishment chamber 103 to apply pre-pressure to the diaphragm 20, when the projection of the mounting channel 123 is located at the center of the projection of the diaphragm 20, the pre-pressure applied by the adjustment component 30 can be uniformly applied to the diaphragm 20, effectively avoiding excessive local deformation or stress concentration of the diaphragm 20 due to uneven pressure, thereby ensuring the stability and reliability of the diaphragm 20 during operation. At the same time, the centrally located mounting channel 123 allows the adjustment component 30 to more accurately control the predetermined gap 104 between the diaphragm 20 and the throttling boss 122, thereby ensuring that the predetermined gap 104 between the diaphragm 20 and the throttling boss 122 remains uniform throughout the circumferential direction, and thus more precisely controlling the flow rate of the hydraulic oil.

[0050] Further, see Figure 3 As shown, the adjustment component 30 in this embodiment includes an adjustment post 31 and a set screw 32. The adjustment post 31 is movably disposed in the installation channel 123, and one end of the adjustment post 31 extends into the oil replenishment cavity 103 and abuts against the diaphragm sheet 20. The set screw 32 is disposed at the end of the adjustment post 31 away from the diaphragm sheet 20 and abuts against the adjustment post 31.

[0051] Specifically, the adjusting column 31 can move within the mounting channel 123. By changing the position of the adjusting column 31 within the mounting channel 123, the length of the adjusting column 31 extending into the oil replenishment chamber 103 can be changed, thereby precisely adjusting the resisting force of the adjusting column 31 on the diaphragm 20 to achieve pre-compression of the diaphragm 20. The set screw 32 can be used to fix the position of the adjusting column 31, preventing the adjusting column 31 from shifting due to factors such as oil pressure during operation, and ensuring that the predetermined gap 104 between the diaphragm 20 and the throttling boss 122 remains stable. Meanwhile, since the installation channel 123 in this embodiment extends from the surface of the throttling boss 122 to the side of the second main body 12 away from the first main body 11, during the installation and debugging of the adjusting column 31, the operator can use a tool to insert into the installation channel 123 from the side of the second main body 12 away from the first main body 11 to rotate the set screw 32 to remove it. Then, the adjusting column 31 can be rotated to move the adjusting column 31 toward the direction closer to the diaphragm sheet 20 to increase the pre-pressure applied by the adjusting column 31 to the diaphragm sheet 20, or to move the adjusting column 31 away from the diaphragm sheet 20 to decrease the pre-pressure applied by the adjusting column 31 to the diaphragm sheet 20. The overall structure is simple and easy to disassemble and install.

[0052] Further, see Figures 2 to 4 As shown, in this embodiment, the adjusting column 31 has an arc surface 311 at one end near the thin film 20.

[0053] Specifically, when the arc surface 311 contacts the diaphragm 20, it allows the pressure applied by the adjusting column 31 to the diaphragm 20 to be more evenly distributed over the contact area. Compared to planar contact, the arc surface 311 can prevent local deformation, wear, or even damage to the diaphragm 20 due to excessive local pressure, thereby protecting the diaphragm 20 and extending its service life. Simultaneously, when the diaphragm 20 undergoes slight deformation under oil pressure, the arc surface 311 can better adapt to this deformation. This is because the contact between the arc surface 311 and the diaphragm 20 gradually transitions from point or line contact to surface contact. Therefore, even if the diaphragm 20 undergoes some deformation, the adjusting column 31 and the diaphragm 20 can still maintain good contact and pressure transmission, ensuring the pre-pressure effect of the adjusting column 31 on the diaphragm 20 and accurate control of the diaphragm 20's position. In addition, during the manufacturing process, the arc surface 311 on the adjusting column 31 is relatively easy to process and form, and during the installation process, the contact between the arc surface 311 and the diaphragm sheet 20 makes it easier to achieve self-positioning and alignment, reducing the installation difficulty and installation time, and effectively improving work efficiency.

[0054] Further, see Figures 1 to 4As shown, in this embodiment, a limiting protrusion 128 is provided in the installation channel 123, and an outer flange 312 is provided on the adjusting column 31 for abutting against the limiting protrusion 128.

[0055] Specifically, the limiting protrusion 128 and the outer flange 312 of the adjusting column 31 cooperate to precisely limit the movement range of the adjusting column 31 within the installation channel 123. When the adjusting column 31 moves towards the diaphragm 20 for pre-pressure adjustment, the outer flange 312 is blocked by the limiting protrusion 128, preventing the adjusting column 31 from excessively squeezing the diaphragm 20 and avoiding damage to the diaphragm 20 due to excessive pressure. At the same time, when installing the adjusting column 31, the cooperation between the outer flange 312 and the limiting protrusion 128 can play an auxiliary positioning role, enabling the adjusting column 31 to be quickly and accurately installed in the correct position within the installation channel 123, improving installation efficiency and accuracy.

[0056] Further, see Figure 3 as well as Figure 7 As shown, in this embodiment, the first oil passage 114 is arranged circumferentially around the first main body 11 on the side of the first main body 11 near the second main body 12. The first main body 11 also has a first oil outlet passage 116, with its two ends connected to the first oil passage 114 and the oil outlet 113, respectively. That is, after hydraulic oil enters the first main body 11 through the oil inlet 112, a stream of oil flows from the oil inlet 112 to the first oil passage 114, then from the first oil passage 114 to the first oil outlet passage 116, and finally to the oil outlet 113.

[0057] Specifically, the first oil passage 114 is arranged circumferentially around the first main body 11, so that the hydraulic oil entering the first oil passage 114 can be evenly distributed on the side of the first main body 11 near the second main body 12, thereby preventing the hydraulic oil from concentrating in a local area and allowing the hydraulic oil to participate more evenly in subsequent work across the entire mating surface between the first main body 11 and the second main body 12. At the same time, the circumferentially arranged first oil passage 114 can buffer and stabilize the flow of hydraulic oil to a certain extent. When the hydraulic oil enters from the oil inlet 112, it flows through the circumferential passage, which can reduce the pulsation and impact of the hydraulic oil flow, allowing the hydraulic oil to enter the working area related to other components in a more stable state.

[0058] Further, see Figure 4 as well as Figure 8 As shown, in this embodiment, the third oil channel 124 is disposed on the side of the second main body 12 close to the first main body 11. The second main body 12 is also provided with a second oil inlet channel 125, and the two ends of the second oil inlet channel 125 are respectively connected to the third oil channel 124 and the regulating cavity 102.

[0059] Specifically, after the hydraulic oil enters the first main body 11 through the oil inlet 112, a stream of oil flows from the oil inlet 112 to the third oil channel 124, and then from the third oil channel 124 into the second oil inlet channel 125 before flowing to the regulating chamber 102. In this embodiment, by setting the third oil channel 124 and the second oil inlet channel 125, a specific and independent flow path is provided for the hydraulic oil from the oil inlet 112 to the regulating chamber 102, thereby realizing functions such as replenishing the hydraulic oil in the regulating chamber 102 and regulating the pressure.

[0060] Specifically, see Figure 8 As shown, in one embodiment of this application, the third oil channel 124 is shaped like a quarter circle to prevent interference with other pipes. Of course, in embodiments not shown in this application, the third oil channel 124 may be arranged circumferentially around the second main body 12 on the side of the second main body 12 closest to the first main body 11. The depth and width of the third oil channel 124 can be set according to actual processing requirements, and are not specifically limited herein.

[0061] Further, see Figure 4 As shown, the throttle in this embodiment is also provided with a second oil outlet channel 13, which is disposed through the first main body 11 and the second main body 12. The first main body 11 is also provided with a third oil outlet channel 117, the two ends of which are respectively connected to the oil outlet hole 113 and the second oil outlet channel 13. The second main body 12 is also provided with a fourth oil outlet channel 126, the two ends of which are respectively connected to the oil replenishment chamber 103 and the second oil outlet channel 13.

[0062] Specifically, after the hydraulic oil enters the first main body 11 through the oil inlet 112, one stream of oil flows from the oil inlet 112 to the third oil channel 124, and then from the third oil channel 124 into the second oil inlet channel 125 and then into the regulating chamber 102. Then, it flows into the replenishing chamber 103 through the predetermined gap 104 between the diaphragm 20 and the throttling boss 122. After that, the hydraulic oil in the replenishing chamber 103 flows from the fourth oil outlet channel 126 to the second oil outlet channel 13, and then from the second oil outlet channel 13 to the third oil outlet channel 117 and flows to the oil outlet 113. Since the second oil outlet channel 13 in this embodiment is disposed through the first main body 11 and the second main body 12, that is, a part of the second oil outlet channel 13 is located on the first main body 11 and the other part of the second oil outlet channel 13 is located on the second main body 12, the hydraulic oil entering the second main body 12 can be guided to the first main body 11 and flow out from the oil outlet hole 113 of the first main body 11. The structure is simple and easy to assemble and process.

[0063] Further, see Figure 2 as well as Figure 7 As shown, in this embodiment, an annular step 118 is provided on the inner wall surface of the first cavity 111. The annular step 118 is arranged around the circumference of the first main body 11. The thin film 20 is located in the first cavity 111 and the outer edge of the thin film 20 abuts against the annular step 118.

[0064] Specifically, the annular step 118 provides a clear installation position for the diaphragm sheet 20, ensuring that the diaphragm sheet 20 can be accurately installed in the first cavity 111, preventing positional displacement or tilting of the diaphragm sheet 20 during installation, thereby ensuring the stability and reliability of the throttle. At the same time, since the diaphragm sheet 20 will deform under the pre-pressure of the regulating component 30, the annular step 118 not only allows the outer edge of the diaphragm sheet 20 to abut against the annular step 118, but also serves as a support surface, evenly distributing the pressure on the diaphragm sheet 20 to its edges, effectively preventing the diaphragm sheet 20 from cracking or excessively deforming due to excessive localized stress.

[0065] Further, see Figures 2 to 4 As shown, in this embodiment, a sealing groove 127 is provided on the side of the installation channel 123 near the oil filling chamber 103, and a first sealing ring 40 is provided in the sealing groove 127.

[0066] Specifically, since the mounting channel 123 in this embodiment is connected to the oil replenishment chamber 103, when the first sealing ring 40 is installed in the sealing groove 127, a reliable seal can be formed between the mounting channel 123 and the oil replenishment chamber 103. During the operation of the throttle, when the throttle is filled with hydraulic oil, the hydraulic oil may leak out from the gap between the mounting channel 123 and the adjusting column 31 under pressure. The first sealing ring 40 effectively prevents hydraulic oil leakage, ensuring that hydraulic oil does not leak from the oil replenishment chamber 103, thus effectively guaranteeing the sealing and integrity of the internal oil system of the throttle.

[0067] Further, see Figures 3 to 4 As shown, a second sealing ring 50 is provided between the first main body 11 and the second main body 12 in this embodiment.

[0068] Specifically, the second sealing ring 50 is located between the first main body portion 11 and the second main body portion 12, effectively filling the gap between their mating surfaces and preventing hydraulic oil from leaking from the mating surfaces. At the same time, the second sealing ring 50 also makes the connection between the first main body portion 11 and the second main body portion 12 tighter, improving the stability and reliability of the overall structure of the throttle.

[0069] Furthermore, in this embodiment, the first main body 11 and the second main body 12 are fixedly connected by bolts. This arrangement facilitates the installation and disassembly of the first main body 11 and the second main body 12. At the same time, the bolt connection can provide sufficient preload to ensure that the first main body 11 and the second main body 12 fit tightly together, forming a stable overall structure.

[0070] On the other hand, embodiments of this application also provide a static pressure device that includes the aforementioned throttle, thus encompassing all the technical effects of the aforementioned throttle. Since the technical effects of the throttle have already been described in detail above, they will not be repeated here.

[0071] 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.

[0072] 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 application.

[0073] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A throttle, characterized in that, include: The main body component (10) includes a first main body part (11) and a second main body part (12) that are abutted to each other. The first main body part (11) has a first cavity (111) on the side near the second main body part (12). The first main body part (11) is also provided with an oil inlet (112), an oil outlet (113), a first oil passage (114), and a second oil passage (115). The second main body part (12) has a second cavity (121) on the side near the first main body part (11). A throttling boss (122) is provided in the center of the second cavity (121). An installation channel (123) is provided on the throttling boss (122). The installation channel (123) extends from the surface of the throttling boss (122) to the side of the second main body part (12) away from the first main body part (11). The second main body part (12) is also provided with a third oil passage (124). A thin film (20) is disposed between the first main body (11) and the second main body (12). The thin film (20) and the first cavity (111) form a pressure stabilizing cavity (101). The thin film (20) and the space outside the throttling boss (122) in the second cavity (121) form an adjusting cavity (102). The thin film (20) and the space inside the throttling boss (122) form an oil replenishing cavity (103). The oil replenishing cavity (103) is connected to the installation channel (123). An adjustment component (30) is movably disposed within the mounting channel (123), and one end of the adjustment component (30) extends into the oil filling chamber (103) and abuts against the diaphragm sheet (20). The adjustment component (30) is configured to pre-compress the diaphragm sheet (20) to create a predetermined gap (104) between the diaphragm sheet (20) and the throttling boss (122), thereby enabling communication between the adjustment chamber (102) and the oil filling chamber (103). The first oil channel (114), the second oil channel (115), and the third oil channel (124) are all connected to the oil inlet (112), and the first oil channel (114) is connected to the oil outlet (113), the second oil channel (115) is connected to the pressure stabilizing chamber (101), the third oil channel (124) is connected to the regulating chamber (102), and the oil replenishing chamber (103) is connected to the oil outlet (113).

2. The throttle device according to claim 1, characterized in that, Within the projection of the throttle in the thickness direction, the projection of the mounting channel (123) is located at the center of the projection of the thin film (20).

3. The throttle device according to claim 1, characterized in that, The adjustment assembly (30) includes an adjustment post (31) and a set screw (32). The adjustment post (31) is movably disposed in the mounting channel (123), and one end of the adjustment post (31) extends into the oil filling chamber (103) and abuts against the diaphragm sheet (20). The set screw (32) is disposed at the end of the adjustment post (31) away from the diaphragm sheet (20) and abuts against the adjustment post (31).

4. The throttle device according to claim 3, characterized in that, The adjusting column (31) has an arc surface (311) at one end near the thin film (20).

5. The throttle device according to claim 3, characterized in that, The installation channel (123) is provided with a limiting protrusion (128), and the adjusting column (31) is provided with an outer flange (312) for abutting against the limiting protrusion (128).

6. The throttle device according to claim 1, characterized in that, The first oil passage (114) is arranged around the first main body (11) on the side of the first main body (11) near the second main body (12), and the first main body (11) is also provided with a first oil outlet passage (116), the two ends of the first oil outlet passage (116) being connected to the first oil passage (114) and the oil outlet hole (113) respectively.

7. The throttle device according to claim 1, characterized in that, The third oil passage (124) is located on the side of the second main body (12) near the first main body (11). The second main body (12) is also provided with a second oil inlet passage (125). The two ends of the second oil inlet passage (125) are respectively connected to the third oil passage (124) and the regulating cavity (102).

8. The throttle device according to claim 1, characterized in that, The throttle is also provided with a second oil outlet channel (13), which is disposed through the first main body (11) and the second main body (12). The first main body (11) is also provided with a third oil outlet channel (117), the two ends of which are respectively connected to the oil outlet hole (113) and the second oil outlet channel (13). The second main body (12) is also provided with a fourth oil outlet channel (126), the two ends of which are respectively connected to the oil replenishment chamber (103) and the second oil outlet channel (13).

9. The throttle device according to any one of claims 1 to 8, characterized in that, An annular step (118) is provided on the inner wall surface of the first cavity (111), the annular step (118) is arranged around the circumference of the first main body (11), the thin film (20) is located in the first cavity (111) and the outer edge of the thin film (20) abuts against the annular step (118); and / or, A sealing groove (127) is provided on the side of the installation channel (123) near the oil filling chamber (103), and a first sealing ring (40) is provided in the sealing groove (127); and / or, A second sealing ring (50) is provided between the first main body part (11) and the second main body part (12); and / or, The first main body (11) and the second main body (12) are fixedly connected by bolts.

10. A static pressure device, characterized in that, The static pressure device includes the throttle device according to any one of claims 1 to 9.

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