Throttling device and static pressure equipment

Abstract

The invention discloses a throttler and static pressure equipment. The throttler comprises a main body part, a thin film piece and an adjusting assembly. The main body part comprises a first main body part and a second main body part, the first main body part is provided with a first cavity, an oil inlet hole, an oil outlet hole, a first oil liquid channel and a second oil liquid channel, the second main body part is provided with a second cavity and a third oil liquid channel, a throttling boss is arranged in the second cavity, and the throttling boss is provided with a mounting channel; a pressure stabilizing cavity is defined by the thin film piece and the first cavity, an adjusting cavity is defined by the thin film piece and the second cavity, and an oil supplementing cavity is defined by the thin film piece and the throttling boss. The adjusting assembly is movably arranged in the mounting channel, and the adjusting assembly is configured to pre-press the thin film so that a preset gap can be formed between the thin film and the throttling boss. The throttling device can solve the problem that in the prior art, a throttling device cannot adjust the pre-pressure of a throttling device film according to different initial loads of static pressure equipment.

Description

Technical Field

[0001] The present application relates to the field of liquid static pressure technology, and in particular to a throttle and static pressure equipment. Background Art

[0002] Liquid hydrostatic devices are widely used in precision machining equipment. The throttle is a key component in the hydrostatic device. Its throttling performance has a great influence on the oil film stiffness, bearing capacity and precision of the hydrostatic device. Among them, the film throttle is the most widely used one.

[0003] However, during operation, the existing membrane throttle cannot adjust the pre-pressure of the throttle membrane according to the different initial loads of the equipment, so that the standardized throttle cannot be used universally in equipment with different initial loads. It is necessary to calculate and match the optimal applicable range of the throttle for equipment with different initial loads, resulting in a long design and production cycle and poor universality. Summary of the invention

[0004] The main purpose of the present 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 film according to the different initial loads of the static pressure device.

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

[0006] A main body component, the main body component includes a first main body portion and a second main body portion arranged close to each other, a first cavity is arranged on a side of the first main body portion close to the second main body portion, an oil inlet hole, an oil outlet hole, a first oil channel and a second oil channel are also arranged on the first main body portion, a second cavity is arranged on a side of the second main body portion close to the first main body portion, a throttling boss is arranged at the center of the second cavity, a mounting channel is arranged on the throttling boss, the mounting channel extends from the surface of the throttling boss to a side of the second main body portion away from the first main body portion, and a third oil channel is also arranged on the second main body portion;

[0007] a diaphragm, the diaphragm being arranged between the first main body and the second main body, the diaphragm and the first cavity forming a pressure stabilizing cavity, the diaphragm and the space outside the throttling boss in the second cavity forming a regulating cavity, the diaphragm and the space inside the throttling boss forming an oil replenishing cavity, and the oil replenishing cavity being communicated with the mounting channel;

[0008] an adjusting component, wherein the adjusting component is movably disposed in the mounting channel, and one end of the adjusting component extends into the oil replenishing chamber and abuts against the diaphragm, and the adjusting component is configured to pre-press the diaphragm so that a predetermined gap exists between the diaphragm and the throttling boss so that the adjusting chamber is connected with the oil replenishing chamber;

[0009] Among them, the first oil channel, the second oil channel and the third oil channel are all connected to the oil inlet hole, and the first oil channel is connected to the oil outlet hole, the second oil channel is connected to the pressure stabilizing chamber, the third oil channel is connected to the regulating chamber, and the oil replenishing chamber is connected to the oil outlet hole.

[0010] Furthermore, within the projection of the throttle in the thickness direction, the projection of the mounting channel is located at the center of the projection of the diaphragm.

[0011] Furthermore, the adjustment component includes an adjustment column and a top screw, the adjustment column is movably arranged in the installation channel, and one end of the adjustment column extends into the oil replenishing chamber and abuts against the diaphragm sheet, and the top screw is arranged at one end of the adjustment column away from the diaphragm sheet and abuts against the adjustment column.

[0012] Furthermore, an arc surface is provided at one end of the adjusting column close to the film sheet.

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

[0014] Furthermore, the first oil channel is arranged along the circumference of the first main body on one side of the first main body close to the second main body, and a first oil outlet channel is also arranged on the first main body, and both ends of the first oil outlet channel are respectively connected to the first oil channel and the oil outlet hole.

[0015] Furthermore, the third oil channel is arranged on a side of the second main body close to the first main body, and a second oil inlet channel is also arranged on the second main body, and both ends of the second oil inlet channel are respectively connected to the third oil channel and the regulating chamber.

[0016] Furthermore, a second oil outlet channel is provided on the throttle, and the second oil outlet channel is provided through the first main body and the second main body. A third oil outlet channel is also provided on the first main body, and both ends of the third oil outlet channel are respectively connected to the oil outlet hole and the second oil outlet channel. A fourth oil outlet channel is also provided on the second main body, and both ends of the fourth oil outlet channel are respectively connected to the oil replenishing chamber and the second oil outlet channel.

[0017] Further, an annular step is provided on the inner wall surface of the first cavity, the annular step is arranged around the circumference of the first main body, the film sheet is located in the first cavity and the outer edge of the film sheet abuts against the annular step; and / or,

[0018] A sealing groove is provided on one side of the installation channel close to the oil replenishing 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 and the second main body; and / or,

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

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

[0022] In the present application, when the throttle is actually processed, the first main body and the second main body can be placed close together, and a diaphragm is arranged between the first main body and the second main body. At this time, the diaphragm will be surrounded by the first cavity to form a pressure-stabilizing cavity, and because a throttling boss is arranged in the center of the second cavity, the diaphragm will also be surrounded by the space outside the throttling boss in the second cavity to form an adjusting cavity, and be surrounded by the space inside the throttling boss to form an oil replenishing cavity. Subsequently, the adjusting component is installed in the installation channel, and the adjusting component is passed from the installation channel to the oil replenishing cavity to apply a predetermined pressure to the diaphragm, so that the diaphragm is bent and deformed in the direction of the first cavity, and then a predetermined gap is formed between the diaphragm and the throttling boss so that the adjusting cavity is connected to the oil replenishing cavity. With such an arrangement, the pre-pressure of the diaphragm can be adjusted according to the different initial loads of the equipment, so that the standardized throttle can be universally used in equipment with different initial loads, shortening the production cycle and having good universality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 An exploded view of a throttle disclosed in an embodiment of the present application;

[0025] Figure 2 The attached embodiment disclosed in this application Figure 1 A cross-sectional view of the middle throttle;

[0026] Figure 3 A cross-sectional view of the throttle disclosed in an embodiment of the present application at a first viewing angle;

[0027] Figure 4 A cross-sectional view of the throttle disclosed in the embodiment of the present application at a second viewing angle;

[0028] Figure 5 A cross-sectional view of the diaphragm and the throttling boss disclosed in the embodiment of the present application when they are completely separated;

[0029] Figure 6 A cross-sectional view of the film sheet and the throttling boss disclosed in the embodiment of the present application when they are attached;

[0030] Figure 7 It is a structural schematic diagram of the first main body disclosed in the embodiment of the present application;

[0031] Figure 8 It is a structural schematic diagram of the second main body disclosed in the embodiment of the present application;

[0032] Fig. 9 This is a schematic diagram of the structure of the throttle disclosed in the embodiment of the present application when it is connected to the static pressure equipment.

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

[0034] 10. Main body; 101. Pressure stabilizing chamber; 102. Adjusting chamber; 103. Oil replenishing chamber; 104. Predetermined gap; 11. First main body; 111. First cavity; 112. Oil inlet hole; 113. Oil outlet hole; 114. First oil channel; 115. Second oil channel; 116. First oil outlet channel; 117. Third oil outlet channel; 118. Annular step; 12. Second main body; 121. Second cavity; 122. Throttle convex Platform; 123, mounting 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; 30, adjustment component; 31, adjustment column; 311, arc surface; 312, outer flange; 32, top screw; 40, first sealing ring; 50, second sealing ring; 60, support member; 61, oil chamber; 70, sliding member. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0038] As mentioned in the background technology, the existing membrane throttle cannot adjust the flow of the throttle itself according to the changes in the oil supply pressure or load pressure or other working conditions during operation, and thus cannot adapt to the working conditions and workload. To this end, the inventor of the present application has designed a new type of throttle, through which the problem that the throttle in the prior art cannot adjust the pre-pressure of the throttle membrane according to the different initial loads of the static pressure equipment can be solved. The throttle of the present application will be described in detail below in conjunction with the accompanying drawings.

[0039] See also Figures 1 to 9 As shown, according to an embodiment of the present application, a throttle is provided. The throttle includes a main body component 10 , a diaphragm 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 which are arranged close to each other. A first cavity 111 is arranged on a side of the first main body portion 11 close to the second main body portion 12. An oil inlet hole 112, an oil outlet hole 113, a first oil channel 114 and a second oil channel 115 are also arranged on the first main body portion 11. A second cavity 121 is arranged on a side of the second main body portion 12 close to the first main body portion 11. A throttling boss 122 is arranged at the center of the second cavity 121. A mounting channel 123 is arranged on the throttling boss 122. The mounting channel 123 extends from the surface of the throttling boss 122 to a side of the second main body portion 12 away from the first main body portion 11. A third oil channel 124 is also arranged on the second main body portion 12. The diaphragm 20 is arranged between the first main body portion 11 and the second main body portion 12. The diaphragm 20 and the first cavity 111 are arranged to form a pressure stabilizing cavity 101. The diaphragm 20 and the second cavity 12 1, the space outside the throttling boss 122 is enclosed to form an adjustment chamber 102, the space inside the throttling boss 122 and the diaphragm 20 is enclosed to form an oil replenishing chamber 103, and the oil replenishing chamber 103 is communicated with the mounting channel 123; the adjustment component 30 is movably arranged in the mounting channel 123, and one end of the adjustment component 30 extends into the oil replenishing chamber 103 and abuts against the diaphragm 20, and the adjustment component 30 is configured to pre-press the diaphragm 20 so that the diaphragm 20 and There is a predetermined gap 104 between the throttling bosses 122 so that the regulating chamber 102 is connected to the oil replenishing chamber 103; wherein the first oil channel 114, the second oil channel 115 and the third oil channel 124 are all connected to the oil inlet hole 112, and the first oil channel 114 is connected to the oil outlet hole 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 hole 113.

[0041] Combination Figures 1 to 4As shown, in this embodiment, the main body part 10 includes a first main body part 11 and a second main body part 12. When the throttle is actually processed, the first main body part 11 and the second main body part 12 can be placed together, and a film 20 is arranged between the first main body part 11 and the second main body part 12. At this time, the film 20 will surround the first cavity 111 to form a pressure stabilizing cavity 101, and because a throttling boss 122 is arranged at the center of the second cavity 121, the film 20 will also surround the throttling boss 122 in the second cavity 121. The space of the part is enclosed to form the regulating chamber 102, and the space inside the throttling boss 122 is enclosed to form the oil replenishing chamber 103. Subsequently, the regulating assembly 30 is installed in the installation channel 123, and the regulating assembly 30 is passed through the installation channel 123 to the oil replenishing chamber 103 to apply a predetermined pressure to the diaphragm 20, so that the diaphragm 20 is bent and deformed in the direction of the first cavity 111, and then a predetermined gap 104 is formed between the diaphragm 20 and the throttling boss 122, so that the regulating chamber 102 is connected with the oil replenishing chamber 103. With such a configuration, the pre-pressure of the diaphragm 20 can be adjusted according to the different initial loads of the equipment, so that the standardized throttle can be used in different initial load equipment, shortening the production cycle and having good versatility.

[0042] It is worth noting that in this embodiment, "the adjustment component 30 is movably disposed in the installation channel 123" means that in the process of applying pre-pressure to the diaphragm 20 by the adjustment component 30 so that there is 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 adjustment component 30 can be moved in a direction away from the diaphragm 20 to reduce the pre-pressure applied by the adjustment component 30 to the diaphragm 20; if the width of the predetermined gap 104 is too narrow, the adjustment component 30 can be moved in a direction close to the diaphragm 20 to increase the pre-pressure applied by the adjustment component 30 to the diaphragm 20. In other words, the adjustment component 30 in this embodiment can control the size of the pre-pressure applied to the diaphragm 20, so as to ensure that there is a suitable adjustment gap between the diaphragm 20 and the throttling boss 122.

[0043] At the same time, 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 hole 112, and the first oil channel 114 is connected to the oil outlet hole 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 hole 113, when the throttle is passed with hydraulic oil, the hydraulic oil enters the first main body 11 from the oil inlet hole 112, and the hydraulic oil after entering the first main body 11 is divided into three oils, and the first oil flows from the oil inlet hole 112 to the first oil The first oil channel 114 flows from the first oil channel 114 to the oil outlet hole 113; the second oil flows from the oil inlet hole 112 to the second oil channel 115, and enters the pressure stabilizing chamber 101 from the second oil channel 115; the third oil flows from the oil inlet hole 112 to the third oil channel 124, and enters the regulating chamber 102 from the third oil channel 124. Since there is a predetermined gap 104 between the diaphragm 20 and the throttling boss 122, the regulating chamber 102 is connected with the oil replenishing chamber 103. The hydraulic oil entering the regulating chamber 102 will flow into the oil replenishing chamber 103, and flow from the oil replenishing chamber 103 to the oil outlet hole 113.

[0044] See also Fig. 9 As shown, the hydraulic station continuously outputs constant pressure hydraulic oil, the Ps value can be read through the pressure gauge, and the Ps value can be adjusted to the design value through the regulating valve. Since the static pressure device includes a support 60 and a sliding member 70, and the support 60 has an oil chamber 61, when the throttle in the present application is installed on the static pressure device, the hydraulic station is connected to the oil inlet hole 112 of the throttle to provide hydraulic oil, and the oil outlet hole 113 is connected to the oil chamber 61 to provide hydraulic oil to the oil chamber 61. In the initial state (i.e., the pressure in the oil chamber 61 begins to be established), with respect to the sliding member 70 and the oil chamber 61, under the action of the deadweight of the sliding member 70, there is no gap between the supporting member 60 and the sliding member 70. At this time, the fluid resistance Rh of the oil chamber 61 approaches infinity. When the product of the oil supply pressure Ps and the effective area Ae of the oil chamber 61 is equal to the deadweight of the sliding member 70, the sliding member 70 floats. After the sliding member 70 floats, there is a gap h between the sliding member 70 and the oil chamber 61. At this time, the fluid resistance Rh of the oil chamber 61 decreases. With respect to the predetermined gap 104 between the diaphragm 20 and the throttling boss 122, when there is no gap between the oil chamber 61 connected to the oil outlet hole 113 and the sliding member 70, the pressure Pr of the oil chamber 61 is equal to the oil supply pressure Ps of the oil inlet hole 112. At this time, the width of the predetermined gap 104 is at a maximum value (e.g., Figure 5As shown in FIG. 1 , when the hydraulic oil flows from the oil outlet 113 to the oil chamber 61 to float the sliding member 70, the pressure Pr of the oil chamber 61 decreases. The decrease in the pressure Pr reduces the pressure of the oil replenishing chamber 103, thereby causing a large pressure difference between the pressure stabilizing chamber 101 and the oil replenishing chamber 103, which in turn causes the diaphragm 20 to be pressed toward the direction of the oil replenishing 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 in FIG. 1 ). Figure 6 As shown), the regulating chamber 102 is disconnected from the oil replenishing chamber 103. At this time, only the first oil channel 114 and the oil outlet hole 113 are in a connected state, that is, only the hydraulic oil in the first oil channel 114 flows to the oil outlet hole 113 and flows into the oil chamber 61 from the oil outlet hole 113.

[0045] When the load F on the sliding member 70 increases, the gap h between the sliding member 70 and the supporting member 60 tends to decrease, resulting in a tendency for the fluid resistance Rh of the oil chamber 61 to increase, thereby increasing the pressure Pr of the oil chamber 61 of the supporting member 60. The increase in the pressure Pr increases the pressure of the oil replenishing chamber 103, thereby decreasing the pressure difference between the pressure stabilizing chamber 101 and the oil replenishing chamber 103, and then decreasing the pressure of the pressure stabilizing chamber 101 on the diaphragm 20. The deformation of the diaphragm 20 decreases, thereby opening the predetermined gap 104 between the diaphragm 20 and the throttling boss 122. , thereby connecting the regulating chamber 102 with the oil replenishing chamber 103. At this time, not only does the hydraulic oil in the first oil channel 114 flow to the oil outlet hole 113 and then flow into the oil chamber 61, but the hydraulic oil in the regulating chamber 102 also flows to the oil replenishing chamber 103, and flows from the oil replenishing chamber 103 to the oil outlet hole 113 and then flows into the oil chamber 61. The increase in the oil output of the oil outlet hole 113 can resist the trend of reducing the gap h between the sliding member 70 and the supporting member 60 due to the increase in load, and finally makes the gap between the sliding member 70 and the supporting member 60 change towards the trend of restoring to the original gap h.

[0046] When the load F on the sliding member 70 reaches the maximum value, the oil supply pressure Ps of the oil inlet hole 112 is equal to 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 the maximum value, so that the flow rate of the hydraulic oil reaches the maximum value; when the load F on the sliding member 70 decreases from the maximum value, the gap h between the sliding member 70 and the support member 60 tends to increase, resulting in a tendency for the fluid resistance Rh of the oil chamber 61 to decrease, and then the pressure Pr of the oil chamber 61 of the support member 60 decreases, and the pressure The decrease in force Pr reduces the pressure in the oil replenishing chamber 103, thereby increasing the pressure difference between the pressure stabilizing chamber 101 and the oil replenishing chamber 103, and subsequently causing the diaphragm 20 to deform toward the oil replenishing chamber 103 under the action of the pressure stabilizing chamber 101 to reduce the predetermined gap 104. At this time, the reduction in the oil output of the oil outlet 113 can resist the tendency of the gap h between the sliding member 70 and the supporting member to increase due to the reduction in load, and ultimately causes the gap between the sliding member 70 and the supporting member 60 to change towards the trend of restoring to the original gap h.

[0047] In combination with the above content, it can be known that before the hydraulic station provides hydraulic oil, under the pre-pressure action of the adjusting component 30, the diaphragm 20 can be bent and deformed toward the pressure stabilizing chamber 101, so that there is a predetermined gap 104 between the diaphragm 20 and the throttling boss 122, so that the adjusting chamber 102 is connected with the oil replenishing chamber 103. When the hydraulic station starts to provide hydraulic oil, the hydraulic oil enters from the oil inlet hole 112 and flows to the first oil channel 114, the second oil channel 115 and the third oil channel 124 respectively, wherein the hydraulic oil in the first oil channel 114 will directly flow to the oil outlet hole 113 and then flow into the oil chamber 61 of the support 60, the hydraulic oil in the second oil channel 115 will directly flow to the pressure stabilizing chamber 101, and the hydraulic oil in the third oil channel 124 will directly flow to the regulating chamber 102, and flow into the oil replenishing chamber 103 through the predetermined gap 104, and then flow from the oil replenishing chamber 103 to the oil outlet hole 113 and then flow into the oil chamber 61 of the support. During this process, the hydraulic oil in the oil chamber 61 will support the sliding member 70 so that there is a gap h between the sliding member 70 and the supporting member 60. At this time, the liquid resistance Rh of the oil chamber 61 decreases with the increase of the gap h, causing the pressure Pr of the oil chamber 61 to decrease, thereby causing the pressure in the oil replenishing chamber 103 to decrease, and then the pressure in the pressure stabilizing chamber 101 is greater than the pressure in the oil replenishing chamber 103, and the diaphragm 20 is pushed upward to fit tightly against the throttling boss 122, thereby causing the regulating chamber 102 to be disconnected from the oil replenishing chamber 103, and the hydraulic oil in the third oil channel 124 will not flow to the oil outlet, and only the hydraulic oil in the first oil channel 114 will flow to the oil outlet. When there is a load on the sliding member 70, the gap h between the sliding member 70 and the supporting member 60 will decrease under the action of the load. At this time, the liquid resistance Rh of the oil chamber 61 increases with the decrease of the gap h, resulting in an increase in the pressure Pr of the oil chamber 61, thereby causing the pressure in the oil replenishing chamber 103 to increase, and then the pressure in the oil replenishing chamber 103 and the pressure in the pressure stabilizing chamber 101 tend to be equal. At this time, due to the pre-pressure effect of the adjusting component 30 on the diaphragm 20, the diaphragm 20 will be separated from the throttling boss 122 and have a predetermined gap 104, thereby making the adjusting chamber 102 connected to the oil replenishing chamber 103, and the hydraulic oil in the third oil channel 124 will enter the oil replenishing chamber 103 from the adjusting chamber 102, and flow from the oil replenishing 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, and finally the oil output of the oil outlet 113 is increased. That is to say, the throttle in this embodiment can adjust the flow rate of the throttle itself according to changes in the oil supply pressure or load pressure, thereby providing sufficient flow rate and supporting force for the static pressure equipment, effectively ensuring the working stability and reliability of the static pressure equipment.

[0048] Further, see Figure 1As shown in FIG. 1 , in the projection of the throttle thickness direction in this embodiment, the projection of the installation channel 123 is located at the center of the projection of the film sheet 20. It should be noted that the "thickness direction of the throttle" in this embodiment is in the attached Figure 2 The direction indicated by the letter X.

[0049] Specifically, since the adjustment component 30 in this embodiment is arranged in the installation channel 123, and one end of the adjustment component 30 extends into the oil replenishing chamber 103 to apply pre-pressure to the diaphragm 20, when the projection of the installation channel 123 is located at the center position of the projection of the diaphragm 20, the pre-pressure applied by the adjustment component 30 can act evenly on the diaphragm 20, effectively avoiding excessive local deformation of the diaphragm 20 or stress concentration due to uneven pressure, thereby ensuring the stability and reliability of the diaphragm 20 during operation. At the same time, the installation channel 123 located in the center position can enable the adjustment component 30 to more accurately control the predetermined gap 104 between the diaphragm 20 and the throttling boss 122, so that the predetermined gap 104 between the diaphragm 20 and the throttling boss 122 remains uniform in the entire circumferential direction, thereby more accurately controlling the flow of hydraulic oil.

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

[0051] Specifically, the adjusting column 31 can move in the installation channel 123. By changing the position of the adjusting column 31 in the installation channel 123, the length of the adjusting column 31 extending to the oil replenishing chamber 103 can be changed, and the push force of the adjusting column 31 on the diaphragm 20 can be accurately adjusted to achieve pre-compression of the diaphragm 20. The top screw 32 can be used to fix the position of the adjusting column 31 to prevent the adjusting column 31 from being displaced due to factors such as oil pressure during operation, and ensure that the predetermined gap 104 between the diaphragm 20 and the throttling boss 122 remains stable. At the same time, 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 the installation channel 123 from the side of the second main body 12 away from the first main body 11 to rotate the top screw 32 to remove the top screw 32, and then rotate the adjusting column 31 to move the adjusting column 31 toward the direction close to the diaphragm 20 to increase the pre-pressure applied by the adjusting column 31 to the diaphragm 20, or to move the adjusting column 31 toward the direction away from the diaphragm 20 to reduce the pre-pressure applied by the adjusting column 31 to the diaphragm 20. The overall structure is simple and easy to disassemble and install.

[0052] Further, see Figures 2 to 4 As shown, in this embodiment, an arc surface 311 is provided at one end of the adjustment column 31 close to the film sheet 20 .

[0053] Specifically, when the arc surface 311 contacts the diaphragm 20, the pressure applied by the adjusting column 31 to the diaphragm 20 can be more evenly distributed in the contact area. Compared with plane contact, the arc surface 311 can avoid local deformation, wear and even damage of the diaphragm 20 due to excessive local pressure, thereby protecting the diaphragm 20 and extending the service life of the diaphragm 20. At the same time, when the diaphragm 20 is slightly deformed under the action of 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 is a point or line contact that gradually transitions to a surface contact. Therefore, even if the diaphragm 20 has a certain deformation, the adjusting column 31 and the diaphragm 20 can still maintain good contact and pressure transmission, ensuring the pre-compression effect of the adjusting column 31 on the diaphragm 20 and the accurate control of the position of the diaphragm 20. In addition, during the manufacturing process, the arc surface 311 on the adjustment column 31 is relatively easy to process and shape, and during the installation process, the contact between the arc surface 311 and the film sheet 20 is easier to achieve self-positioning and alignment, which reduces the installation difficulty and installation time and effectively improves work efficiency.

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

[0055] Specifically, the limiting protrusion 128 cooperates with the outer flange 312 of the adjustment column 31 to accurately limit the movement range of the adjustment column 31 in the installation channel 123. When the adjustment column 31 moves toward the film 20 to perform pre-pressure adjustment, the outer flange 312 will be blocked by the limiting protrusion 128 to prevent the adjustment column 31 from over-extruding the film 20 and preventing the film 20 from being damaged due to excessive pressure. At the same time, when installing the adjustment column 31, the cooperation between the outer flange 312 and the limiting protrusion 128 can play a role in auxiliary positioning, so that the adjustment column 31 can be quickly and accurately installed in the correct position in the installation channel 123, thereby improving the installation efficiency and installation accuracy.

[0056] Further, see Figure 3 as well as Figure 7 As shown, in this embodiment, the first oil channel 114 is arranged around the first main body 11 along the circumference of the first main body 11 on one side of the first main body 11 close to the second main body 12, and the first main body 11 is also provided with a first oil outlet channel 116, and both ends of the first oil outlet channel 116 are respectively connected to the first oil channel 114 and the oil outlet hole 113. That is to say, after the hydraulic oil enters the first main body 11 from the oil inlet hole 112, one stream of oil flows from the oil inlet hole 112 to the first oil channel 114, and flows from the first oil channel 114 to the first oil outlet channel 116 and then flows to the oil outlet hole 113.

[0057] Specifically, the first oil channel 114 is arranged around the circumference of the first main body 11, so that the hydraulic oil entering the first oil channel 114 can be evenly distributed on the side of the first main body 11 close to the second main body 12, thereby avoiding the concentrated inflow of hydraulic oil in a local area, and then the hydraulic oil is more evenly involved in the subsequent work between the entire joint surface of the first main body 11 and the second main body 12. At the same time, the surrounding first oil channel 114 can play a role in buffering and stabilizing the flow of hydraulic oil to a certain extent. When the hydraulic oil enters from the oil inlet hole 112, it flows through the surrounding channel, which can reduce the pulsation and impact of the hydraulic oil flow, so that the hydraulic oil can 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, the third oil channel 124 in this embodiment is arranged on a side of the second main body 12 close to the first main body 11, and a second oil inlet channel 125 is also arranged on the second main body 12, and both ends of the second oil inlet channel 125 are respectively connected to the third oil channel 124 and the regulating chamber 102.

[0059] Specifically, after the hydraulic oil enters the first main body 11 from the oil inlet hole 112, a stream of the oil flows from the oil inlet hole 112 to the third oil channel 124, and flows from the third oil channel 124 into the second oil inlet channel 125 and then flows to the regulating chamber 102. In this embodiment, by providing 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 hole 112 to the regulating chamber 102, thereby realizing the functions of replenishing the hydraulic oil in the regulating chamber 102 and regulating the pressure.

[0060] Specifically, see Figure 8 As shown, in one embodiment of the present application, the third oil channel 124 is shaped as a quarter circle, which is to prevent the third oil channel 124 from interfering with other pipes. Of course, in an embodiment not shown in the present application, the third oil channel 124 can be arranged around the circumference of the second main body 12 on one side of the second main body 12 close to the first main body 11. Among them, the groove depth and groove width of the third oil channel 124 can be set according to actual processing requirements, and the present application does not specifically limit it here.

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

[0062] Specifically, after the hydraulic oil enters the first main body 11 from the oil inlet hole 112, a stream of the oil flows from the oil inlet hole 112 to the third oil channel 124, and flows from the third oil channel 124 into the second oil inlet channel 125 and then flows to the regulating chamber 102, and then flows into the oil replenishing chamber 103 through the predetermined gap 104 between the diaphragm 20 and the throttling boss 122. Afterwards, the hydraulic oil in the oil replenishing chamber 103 flows from the fourth oil outlet channel 126 to the second oil outlet channel 13, and then flows from the second oil outlet channel 13 to the third oil outlet channel 117 and flows to the oil outlet hole 113. Since the second oil outlet channel 13 in the present embodiment is provided 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 it is convenient for assembly and processing.

[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 , and the annular step 118 is arranged around the circumference of the first main body 11 . The film 20 is located in the first cavity 111 and the outer edge of the film 20 abuts against the annular step 118 .

[0064] Specifically, the annular step 118 provides a clear installation position for the diaphragm 20, ensuring that the diaphragm 20 can be accurately installed in the first cavity 111, preventing the diaphragm 20 from being offset or tilted during the installation process, thereby ensuring the stability and reliability of the throttle. At the same time, since the diaphragm 20 will be deformed by the pre-pressure of the adjustment component 30, the setting of the annular step 118 can not only make the outer edge of the diaphragm 20 abut against the annular step 118, and the middle part of the diaphragm 20 is concave toward the direction close to the first cavity 111, but also serve as a supporting surface to evenly distribute the pressure on the diaphragm 20 to the edge of the diaphragm 20, effectively preventing the diaphragm 20 from being broken or over-deformed due to excessive local force.

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

[0066] Specifically, since the installation channel 123 in this embodiment is connected to the oil replenishing chamber 103, when the first sealing ring 40 is installed in the sealing groove 127, a reliable seal can be formed between the installation channel 123 and the oil replenishing chamber 103. When the throttle is filled with hydraulic oil and is in a working state, the hydraulic oil may seep out from the gap between the installation channel 123 and the adjusting column 31 under pressure, and the provision of the first sealing ring 40 can effectively prevent the leakage of the hydraulic oil, ensure that the hydraulic oil will not leak from the oil replenishing chamber 103, and effectively ensure the sealing and integrity of the oil system inside the throttle.

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

[0068] Specifically, the second sealing ring 50 is located between the first main body 11 and the second main body 12, and can effectively fill the gap between the joint surfaces of the two to prevent the hydraulic oil from leaking from the joint surfaces. At the same time, the second sealing ring 50 can also make the connection between the first main body 11 and the second main body 12 tighter, thereby improving the stability and reliability of the overall structure of the throttle.

[0069] Furthermore, in this embodiment, the first body 11 and the second body 12 are fixedly connected by bolts. This arrangement facilitates the installation and removal of the first body 11 and the second body 12. At the same time, the bolt connection can provide sufficient pre-tightening force to make the first body 11 and the second body 12 fit tightly together to form a stable overall structure.

[0070] On the other hand, the embodiment of the present application further provides a static pressure device, which includes the above-mentioned throttle, and therefore, the static pressure device includes all the technical effects of the above-mentioned throttle. Since the technical effects of the throttle have been described in detail above, they will not be repeated here.

[0071] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0072] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0073] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A throttle, characterized in that: include: A main body component (10), the main body component (10) comprising a first main body portion (11) and a second main body portion (12) arranged close to each other, a first cavity (111) being arranged on a side of the first main body portion (11) close to the second main body portion (12), an oil inlet hole (112), an oil outlet hole (113), a first oil channel (114) and a second oil channel (115) being also arranged on the first main body portion (11), a second cavity (121) being arranged on a side of the second main body portion (12) close to the first main body portion (11), a throttling boss (122) being arranged at the center of the second cavity (121), a mounting channel (123) being arranged on the throttling boss (122), the mounting channel (123) extending from a surface of the throttling boss (122) to a side of the second main body portion (12) away from the first main body portion (11), and a third oil channel (124) being also arranged on the second main body portion (12); A diaphragm (20), wherein the diaphragm (20) is disposed between the first main body (11) and the second main body (12); the diaphragm (20) and the first cavity (111) are arranged to form a pressure stabilizing cavity (101); the diaphragm (20) and the space outside the throttling boss (122) in the second cavity (121) are arranged to form a regulating cavity (102); the diaphragm (20) and the space inside the throttling boss (122) are arranged to form an oil replenishing cavity (103); and the oil replenishing cavity (103) is communicated with the mounting channel (123); an adjusting component (30), the adjusting component (30) being movably disposed in the mounting channel (123), and one end of the adjusting component (30) extending into the oil replenishing chamber (103) and abutting against the diaphragm (20), the adjusting component (30) being configured to pre-press the diaphragm (20) so that a predetermined gap (104) exists between the diaphragm (20) and the throttling boss (122) so that the adjusting chamber (102) and the oil replenishing chamber (103) are in communication; The first oil channel (114), the second oil channel (115) and the third oil channel (124) are all connected to the oil inlet hole (112), and the first oil channel (114) is connected to the oil outlet hole (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 hole (113).

2. The throttle according to claim 1, characterized in that: In the projection of the throttle in the thickness direction, the projection of the installation channel (123) is located at the center of the projection of the film sheet (20).

3. The throttle according to claim 1, characterized in that: The adjustment assembly (30) includes an adjustment column (31) and a push screw (32). The adjustment column (31) is movably arranged in the installation channel (123), and one end of the adjustment column (31) extends into the oil replenishing chamber (103) and abuts against the diaphragm (20). The push screw (32) is arranged at one end of the adjustment column (31) away from the diaphragm (20) and abuts against the adjustment column (31).

4. The throttle according to claim 3, characterized in that: An arc surface (311) is provided at one end of the adjustment column (31) close to the film sheet (20).

5. The throttle according to claim 3, characterized in that: A limiting protrusion (128) is arranged in the installation channel (123), and an outer flange (312) for abutting against the limiting protrusion (128) is arranged on the adjustment column (31).

6. The throttle according to claim 1, characterized in that: The first oil channel (114) is arranged along the circumference of the first main body (11) on one side of the first main body (11) close to the second main body (12), and the first main body (11) is also provided with a first oil outlet channel (116), and two ends of the first oil outlet channel (116) are respectively connected to the first oil channel (114) and the oil outlet hole (113).

7. The throttle according to claim 1, characterized in that: The third oil channel (124) is arranged on a side of the second main body (12) close to the first main body (11), and a second oil inlet channel (125) is also arranged on the second main body (12), and two ends of the second oil inlet channel (125) are respectively connected to the third oil channel (124) and the regulating chamber (102).

8. The throttle according to claim 1, characterized in that The throttle is also provided with a second oil outlet passage (13), the second oil outlet passage (13) being arranged 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 passage (117), the two ends of the third oil outlet passage (117) being respectively connected to the oil outlet hole (113) and the second oil outlet passage (13); the second main body (12) is also provided with a fourth oil outlet passage (126), the two ends of the fourth oil outlet passage (126) being respectively connected to the oil replenishing chamber (103) and the second oil outlet passage (13).

9. The throttle 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 film sheet (20) is located in the first cavity (111) and the outer edge of the film sheet (20) abuts against the annular step (118); and / or, A sealing groove (127) is provided on one side of the installation channel (123) close to the oil replenishing 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 portion (11) and the second main body portion (12); and / or, The first main body part (11) and the second main body part (12) are fixedly connected by bolts.

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

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