A ball valve trim device and method

Abstract

The application provides a spherical stop valve adjusting device and method, which comprises a support positioning mechanism, a pressing measurement mechanism, a first torque adjusting mechanism, a second torque adjusting mechanism and a platform, wherein the support positioning mechanism is installed on the platform, the valve seat is placed on the support positioning mechanism, and the support positioning mechanism is inserted and positioned with the valve seat; the pressing measurement mechanism is slidingly connected to the platform, the pressing measurement mechanism is pressed on the valve seat and the ball to obtain the coaxiality of the valve seat and the ball; the first torque adjusting mechanism and the second torque adjusting mechanism are slidingly connected to the platform and are connected with the first end cover and the second end cover respectively to screw the first end cover and the second end cover and obtain the torque of the first end cover and the torque of the second end cover. The application can monitor the coaxiality between the valve seat and the ball in real time, then adjust the coaxiality, and ensure that the torque is not too large or too small, so that the efficient and high-precision assembly and adjustment of the spherical stop valve are realized.

Description

Technical Field

[0001] This invention relates to the field of automated assembly technology, and more specifically, to a spherical shut-off valve adjustment device and method. Background Technology

[0002] The ball gate valve includes components such as valve seat, ball and dustproof end cap. Some of these components are quite heavy. If they are assembled manually using traditional techniques, it will lead to problems such as low assembly accuracy and affect the performance of the gate valve. Furthermore, the assembly and adjustment process is quite complicated, resulting in low assembly efficiency. Summary of the Invention

[0003] The main objective of this invention is to provide a spherical shut-off valve adjustment device and method to solve at least one of the technical problems in the related art, such as low assembly accuracy and low assembly efficiency.

[0004] To achieve the above objectives, the present invention provides a spherical gate valve adjustment device. The spherical gate valve includes a valve seat, a ball, a first end cap, and a second end cap. The adjustment device includes a support and positioning mechanism, a clamping and measuring mechanism, a first torque adjustment mechanism, a second torque adjustment mechanism, and a platform. The support and positioning mechanism is mounted on the platform, and the valve seat is placed on the support and positioning mechanism, which is inserted into and positioned with the valve seat. The clamping and measuring mechanism is slidably connected to the platform and presses against the valve seat and the ball to obtain the coaxiality of the valve seat and the ball. The first torque adjustment mechanism and the second torque adjustment mechanism are slidably connected to the platform and respectively connected to the first end cap and the second end cap to rotate the first end cap and the second end cap, and to obtain the torque of the first end cap and the torque of the second end cap.

[0005] Furthermore, the support positioning mechanism includes a column and a base. The column is connected to the platform, and the base is connected to the column. The base is provided with a first positioning post and a second positioning post. The valve seat is placed on the base. The lower end face of the valve seat has a first mounting hole and a second mounting hole. The first mounting hole and the second mounting hole are respectively inserted into the first positioning post and the second positioning post.

[0006] Furthermore, the clamping and measuring mechanism includes a sliding bracket, a lifting structure, a clamping structure, and a measuring structure. The sliding bracket is slidably connected to the platform. The clamping structure and the measuring structure are connected to the sliding bracket through the lifting structure. The clamping structure is used to press against the upper end face and inner circular surface of the valve seat, and the measuring structure is used to press against the outer surface of the sphere.

[0007] Furthermore, the pressing structure includes a first pressing part and a second pressing part. The first pressing part is connected to the lifting structure and is used to press against the upper end face of the valve seat. The second pressing part is slidably connected to the lifting structure and is used to press against the inner circular surface of the valve seat.

[0008] Furthermore, the measuring structure includes a measuring part and a driving part connected to each other, the driving part driving the measuring part to move toward the sphere to press against the outer surface of the sphere.

[0009] Furthermore, the first torque adjustment mechanism includes a first sliding structure and a first twisting structure. The first twisting structure is provided with a first torque sensor. The first twisting structure is slidably connected to the platform through the first sliding structure. The first twisting structure is used to twist the first end cap and obtain the torque of the first end cap. The second torque adjustment mechanism includes a second sliding structure and a second twisting structure. The second twisting structure is provided with a second torque sensor. The second twisting structure is slidably connected to the platform through the second sliding structure. The second twisting structure is used to twist the second end cap and obtain the torque of the second end cap.

[0010] Furthermore, the first screwing structure includes a first driving member and a first screwing member, the first screwing member being connected to the first driving member, the first screwing member being provided with a first connector and a second connector, the first end cap being provided with a first connector hole and a second connector hole, the first connector and the second connector being respectively inserted into the first connector hole and the second connector hole; the second screwing structure includes a second driving member and a second screwing member, the second screwing member being connected to the second driving member, the second screwing member being provided with a third connector and a fourth connector, the second end cap being provided with a third connector hole and a fourth connector hole, the third connector and the fourth connector being respectively inserted into the third connector hole and the fourth connector hole.

[0011] Furthermore, the second pressing part includes a connecting seat, a first bearing, and a second bearing. The connecting seat is slidably connected to the lifting structure. The connecting seat is provided with a first rotating shaft and a second rotating shaft extending toward the inner cavity of the valve seat. The first bearing and the second bearing are respectively connected to the first rotating shaft and the second rotating shaft.

[0012] Furthermore, the lifting structure includes a third driving component, a guide column, and a connecting plate. The sliding bracket is provided with a guide sleeve to be sleeved and connected to the guide column. The third driving component is connected to the connecting plate. The pressing structure and the measuring structure are connected to the connecting plate.

[0013] This invention also provides a method for adjusting a spherical stop valve, using the aforementioned spherical stop valve adjustment device, comprising: placing the spherical stop valve on a support positioning mechanism, and inserting and positioning the valve seat of the spherical stop valve into the support positioning mechanism; pressing a clamping measuring mechanism onto the valve seat; connecting a first torque adjustment mechanism and a second torque adjustment mechanism to the first end cap and the second end cap of the spherical stop valve respectively; obtaining the coaxiality between the valve seat and the ball of the spherical stop valve, and determining a coaxiality deviation value based on the coaxiality; obtaining the torque of the first end cap and the torque of the second end cap, and controlling the first torque adjustment mechanism and the second torque adjustment mechanism to correspondingly tighten the first end cap and the second end cap until the torque of the first end cap and the torque of the second end cap are within the torque qualification range, and the coaxiality deviation value is less than the deviation threshold.

[0014] The spherical gate valve adjustment device of the present invention provides support and limits the overall movement of the spherical gate valve by inserting and positioning it with the valve seat through a support and positioning mechanism; the clamping and measuring mechanism can slide relative to the platform, thereby moving above the spherical gate valve to press against the valve seat and the ball, and can obtain the coaxiality between the valve seat and the ball; the first torque adjustment mechanism and the second torque adjustment mechanism can slide relative to the platform, thereby connecting with the first end cap and the second end cap, and can rotate the first end cap and the second end cap, and obtain the torque of the first end cap and the second end cap; through The clamping and measuring mechanism can monitor the coaxiality between the valve seat and the ball in real time. By adjusting the first end cap and the second end cap, the position of the ball in the valve seat can be changed, thereby adjusting the coaxiality. The ball gate valve adjustment device can monitor the torque of the first end cap and the second end cap in real time to ensure that the torque is not too large or too small. Finally, the coaxiality between the ball and the valve seat is adjusted, as well as the assembly adjustment between the first end cap, the second end cap and the valve seat. This achieves high-efficiency and high-precision assembly and adjustment of the ball gate valve, avoids waste of manual resources, and significantly shortens the product assembly cycle.

[0015] The ball valve adjustment method of the present invention has all the beneficial effects of the adjustment device described above, which will not be repeated here. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of one of the ball stop valve adjustment devices provided in an embodiment of the present invention (including a ball stop valve);

[0018] Figure 2 for Figure 1 Enlarged schematic diagram of point I in the middle;

[0019] Figure 3 A second schematic diagram of the spherical shut-off valve adjustment device provided in an embodiment of the present invention (the spherical shut-off valve is not shown);

[0020] Figure 4 This is a partial schematic diagram of the clamping and measuring mechanism provided in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the first torque adjustment mechanism and the second torque adjustment mechanism provided in an embodiment of the present invention.

[0022] The above figures include the following reference numerals:

[0023] 100. Spherical gate valve; 101. Valve seat; 1011. First mounting hole; 102. Ball; 103. First end cap; 1031. First insertion hole; 1032. Second insertion hole; 1. Support and positioning mechanism; 11. Column; 12. Base; 121. First positioning column; 2. Pressing and measuring mechanism; 21. Sliding bracket; 22. Lifting structure; 221. Third driving component; 222. Guide column; 223. Connecting plate; 23. Pressing structure; 231. First pressing part; 232. Second pressing part; 2321. Connecting seat; 2322. First bearing; 2323. Second bearing; 2324, First rotating shaft; 2325, Second rotating shaft; 24, Measuring structure; 241, Measuring part; 242, Driving part; 3, First torque adjustment mechanism; 31, First sliding structure; 32, First turning structure; 321, First driving member; 322, First turning member; 3221, First connector; 3222, Second connector; 4, Second torque adjustment mechanism; 41, Second sliding structure; 42, Second turning structure; 421, Second driving member; 422, Second turning member; 4221, Third connector; 4222, Fourth connector; 5, Platform. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] 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.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0027] This invention provides a calibrating device for a spherical stop valve 100. The spherical stop valve 100 includes a valve seat 101, a ball 102, a first end cap 103, and a second end cap. The calibrating device includes a support and positioning mechanism 1, a clamping and measuring mechanism 2, a first torque calibrating mechanism 3, a second torque calibrating mechanism 4, and a platform 5. The support and positioning mechanism 1 is mounted on the platform 5, and the valve seat 101 is placed on the support and positioning mechanism 1, with the support and positioning mechanism 1 and the valve seat 101 being inserted and fixed together. Position; the clamping measuring mechanism 2 is slidably connected to the platform 5, and the clamping measuring mechanism 2 is pressed against the valve seat 101 and the ball 102 to obtain the coaxiality of the valve seat 101 and the ball 102; the first torque adjustment mechanism 3 and the second torque adjustment mechanism 4 are slidably connected to the platform 5, and are respectively connected to the first end cover 103 and the second end cover to rotate the first end cover 103 and the second end cover, and obtain the torque of the first end cover 103 and the torque of the second end cover.

[0028] Combination Figure 1 and Figure 2As shown, the ball stop valve 100 consists of a valve seat 101, a ball 102, and a first end cap 103 and a second end cap (the second end cap is not shown, but its structure is similar to that of the first end cap 103) respectively installed on both sides of the valve seat 101. When assembling the ball stop valve 100, the coaxiality between the ball 102 and the valve seat 101 has an important influence on the accuracy of the ball stop valve 100.

[0029] Combination Figures 1 to 3 As shown, the pre-assembled ball valve 100 is placed on the support and positioning mechanism 1, and the support and positioning mechanism 1 is positioned with the valve seat 101 by plugging in; the pressing and measuring mechanism 2 can slide relative to the platform 5 along the Y-axis in the figure, and can press against the valve seat 101 and the ball 102. The coaxiality of the valve seat 101 and the ball 102 can be measured by a corresponding sensor; the first torque adjustment mechanism 3 and the second torque adjustment mechanism 4 are respectively set on both sides of the support and positioning mechanism 1, and can slide relative to the platform 5 along the X-axis in the figure to approach and connect with the first end cap 103 and the second end cap, so as to transmit torque to the first end cap 103 and the second end cap. The first end cap 103 and the second end cap are screwed and installed. The torque during the screwing process of the first end cap 103 and the second end cap can be obtained by, for example, a torque sensor.

[0030] The spherical shut-off valve 100 adjustment device of this invention provides support and limits the overall movement of the spherical shut-off valve 100 by inserting and positioning the support and positioning mechanism 1 into the valve seat 101; the pressing and measuring mechanism 2 can slide relative to the platform 5, thereby moving above the spherical shut-off valve 100 to press against the valve seat 101 and the ball 102, and can obtain the coaxiality between the valve seat 101 and the ball 102; the first torque adjustment mechanism 3 and the second torque adjustment mechanism 4 can slide relative to the platform 5, thereby connecting with the first end cap 103 and the second end cap, and can rotate the first end cap 103 and the second end cap, and obtain the torque of the first end cap 103 and the second end cap; The over-pressure measuring mechanism 2 can monitor the coaxiality between the valve seat 101 and the ball 102 in real time. By adjusting the first end cap 103 and the second end cap, the position of the ball 102 in the valve seat 101 can be changed, thereby adjusting the coaxiality. The ball stop valve 100 adjustment device can monitor the torque of the first end cap 103 and the second end cap in real time to ensure that the torque is not too large or too small. Finally, the coaxiality adjustment between the ball 102 and the valve seat 101 is completed, as well as the assembly adjustment between the first end cap 103 and the second end cap and the valve seat 101. This achieves high-efficiency and high-precision assembly and adjustment of the ball stop valve 100, avoids waste of human resources, and significantly shortens the product assembly cycle.

[0031] Furthermore, the support positioning mechanism 1 includes a column 11 and a base 12. The column 11 is connected to the platform 5, and the base 12 is connected to the column 11. The base 12 is provided with a first positioning post 121 and a second positioning post. The valve seat is placed on the base. The lower end face of the valve seat 101 has a first mounting hole 1011 and a second mounting hole. The first mounting hole 1011 and the second mounting hole are respectively inserted into the first positioning post 121 and the second positioning post.

[0032] Combination Figures 1 to 3 As shown, four columns 11 are installed on the platform 5 and form a table-like structure with the base 12 to facilitate the placement of the ball stop valve 100. The base 12 is provided with a first positioning column 121 and a second positioning column (not shown in the figure due to obstruction). The first positioning column 121 and the second positioning column are respectively inserted into the first mounting hole 1011 and the second mounting hole on the valve seat 101 for positioning. By fixing one surface with two points, the ball stop valve 100 is limited as a whole to facilitate subsequent assembly and adjustment work.

[0033] Furthermore, the pressing and measuring mechanism 2 includes a sliding bracket 21, a lifting structure 22, a pressing structure 23, and a measuring structure 24. The sliding bracket 21 is slidably connected to the platform 5. The pressing structure 23 and the measuring structure 24 are connected to the sliding bracket 21 through the lifting structure 22. The pressing structure 23 is used to press against the upper end face and inner circular face of the valve seat 101. The measuring structure 24 is used to obtain the position of the outer surface of the ball 102.

[0034] Combination Figure 1 and Figure 2 As shown, the lower end of the sliding bracket 21 is provided with a slider, and the slide rail is set on the platform 5 along the Y-axis in the figure. The sliding bracket 21 can be driven by a motor to slide relative to the platform 5 along the Y-axis. The lifting structure 22 can be designed as needed, for example, referring to the lifting structure of a stamping machine tool. As long as the lifting function can be realized and the corresponding functions of the pressing structure 23 and the measuring structure 24 are not affected, it is acceptable. The pressing structure 23 can press against the upper end face and inner circular surface of the valve seat 101 as the lifting structure 22 rises and falls. The measuring structure 24 can use some sensors to detect the position of the outer surface of the ball 102, and then determine the coaxiality between the ball 102 and the valve seat 101.

[0035] In this way, the coaxiality between the ball 102 and the valve seat 101 can be measured by the clamping measuring mechanism 2, thereby improving the assembly accuracy of the ball gate valve 100.

[0036] Furthermore, the pressing structure 23 includes a first pressing part 231 and a second pressing part 232. The first pressing part 231 is connected to the lifting structure 22 and is used to press against the upper end face of the valve seat 101. The second pressing part 232 is slidably connected to the lifting structure 22 and is used to press against the inner circular surface of the valve seat 101.

[0037] Combination Figure 2 , Figure 4 As shown, the first pressing part 231 is connected to the lifting structure 22, so that it can perform the action of lifting and pressing along the Z-axis in the figure. The first pressing part 231 corresponds to the upper end face of the valve seat 101, so that it can press against the upper end face of the valve seat 101. The second pressing part 232 is slidably connected to the lifting structure 22 along the X-axis in the figure, so that it can extend into the inner cavity of the valve seat 101 with the lifting action, and press against the inner circular surface of the valve seat 101 by moving along the X-axis.

[0038] Thus, the first pressing part 231 and the second pressing part 232 can be pressed against the upper end face and inner circular face of the valve seat 101 respectively, thereby cooperating with the support and positioning mechanism 1 to further limit the spherical shut-off valve 100 to ensure the accuracy of assembly and adjustment.

[0039] Furthermore, the measuring structure 24 includes a measuring part 241 and a driving part 242 connected to each other. The driving part 242 drives the measuring part 241 to move toward the sphere 102 to press against the outer surface of the sphere 102.

[0040] Combination Figure 4 As shown, the measuring unit 241 can be a displacement sensor, whose probe can contact the corresponding part to measure its displacement change. The driving unit 242 can be a cylinder, which drives the measuring unit 241 to move toward the ball 102, thereby pressing it against the outer surface of the ball 102, thereby measuring the displacement of the ball 102, and finally determining the coaxiality between the ball 102 and the valve seat 101.

[0041] Furthermore, the first torque adjustment mechanism 3 includes a first sliding structure 31 and a first twisting structure 32. The first twisting structure 32 is provided with a first torque sensor. The first twisting structure 32 is slidably connected to the platform 5 through the first sliding structure 31. The first twisting structure 32 is used to twist the first end cap 103 and obtain the torque of the first end cap 103. The second torque adjustment mechanism 4 includes a second sliding structure 41 and a second twisting structure 42. The second twisting structure 42 is provided with a second torque sensor. The second twisting structure 42 is slidably connected to the platform 5 through the second sliding structure 41. The second twisting structure 42 is used to twist the second end cap and obtain the torque of the second end cap.

[0042] Combination Figure 3 and Figure 5 As shown, the first sliding structure 31 and the second sliding structure 41 can adopt a slider rail structure, so that the first twisting structure 32 and the second twisting structure 42 can slide relative to the platform 5 along the X-axis in the figure, thereby connecting the first twisting structure 32 and the second twisting structure 42 to the first end cover 103 and the second end cover respectively. The torque of the first end cover 103 and the torque of the second end cover can be measured by the first torque sensor and the second torque sensor respectively.

[0043] Thus, the first sliding structure 31 and the second sliding structure 41 can be conveniently connected to the first end cap 103 and the second end cap respectively. By twisting and obtaining the torque of the first end cap 103 and the torque of the second end cap, it is beneficial to adjust the torque of the first twisting structure 32 and the second twisting structure 42, adjust the assembly accuracy of the first end cap 103 and the second end cap, and drive the ball 102 by twisting the first end cap 103 and the second end cap to adjust the coaxiality of the valve seat 101 and the ball 102.

[0044] Further, the first twisting structure 32 includes a first driving member 321 and a first twisting member 322. The first twisting member 322 is connected to the first driving member 321. The first twisting member 322 is provided with a first insertion member 3221 and a second insertion member 3222. The first end cap 103 is provided with a first insertion hole 1031 and a second insertion hole 1032. The first insertion member 3221 and the second insertion member 3222 are respectively inserted into the first insertion hole 1031 and the second insertion hole 1032. In the second insertion hole 1032; the second twisting structure 42 includes a second driving member 421 and a second twisting member 422. The second twisting member 422 is connected to the second driving member 421. The second twisting member 422 is provided with a third insertion member 4221 and a fourth insertion member 4222. The second end cap is provided with a third insertion hole and a fourth insertion hole. The third insertion member 4221 and the fourth insertion member 4222 are respectively inserted into the third insertion hole and the fourth insertion hole.

[0045] Combination Figure 5 As shown, the first driving member 321 can be a motor to drive the first twisting member 322 to rotate. The first twisting member 322 is provided with a first plug 3221 and a second plug 3222 to be plugged into the first plug hole 1031 and the second plug hole 1032 on the first end cover 103, respectively. Through the two-point plugging, torque can be transmitted, so that the first end cover 103 is twisted. Similarly, the second driving member 421 drives the second twisting member 422 to rotate, and the third plug 4221 and the fourth plug 4222 are plugged into the third plug hole and the fourth plug hole on the second end cover, respectively, to transmit torque and so that the second end cover is twisted.

[0046] Thus, torque can be transmitted to the first end cap 103 and the second end cap through the first twisting structure 32 and the second twisting structure 42, so as to twist the first end cap 103 and the second end cap for assembly and adjustment.

[0047] Furthermore, the second pressing part 232 includes a connecting seat 2321, a first bearing 2322 and a second bearing 2323. The connecting seat 2321 is slidably connected to the lifting structure 22. The connecting seat 2321 is provided with a first rotating shaft 2324 and a second rotating shaft 2325 extending toward the inner cavity of the valve seat 101. The first bearing 2322 and the second bearing 2323 are respectively connected to the first rotating shaft 2324 and the second rotating shaft 2325.

[0048] Combination Figure 2 and Figure 4 As shown, the connecting seat 2321 is connected to the lifting structure 22 through a slider and slide rail structure, so that it can slide along the X-axis direction in the figure. The connecting seat 2321 is provided with a first rotating shaft 2324 and a second rotating shaft 2325. The first rotating shaft 2324 and the second rotating shaft 2325 extend toward the inner cavity of the valve seat 101 so that the first bearing 2322 and the second bearing 2323 can be pressed against the inner circular surface of the valve seat 101.

[0049] Thus, the first bearing 2322 and the second bearing 2323 can limit the valve seat 101, which is beneficial to the assembly and adjustment of the ball stop valve 100 and improves the assembly accuracy of the ball stop valve 100.

[0050] Furthermore, the lifting structure 22 includes a third driving component 221, a guide column 222, and a connecting plate 223. The sliding bracket 21 is provided with a guide sleeve to be sleeved and connected to the guide column 222. The third driving component 221 is connected to the connecting plate 223. The pressing structure 23 and the measuring structure 24 are connected to the connecting plate 223.

[0051] Combination Figure 3 and Figure 4 As shown, the third driving component 221 can be a cylinder to drive the connecting plate 223 to move up and down along the Z-axis in the figure. The pressing structure 23 is connected to the connecting plate 223. The measuring structure 24 is connected to the pressing structure 23 and then to the connecting plate 223. The guide column 222 is connected to the connecting plate 223. The sliding bracket 21 is provided with a guide sleeve (not shown in detail in the figure), which is sleeved and connected to the guide column 222, so as to guide the lifting action.

[0052] The present invention also provides a method for adjusting a spherical shut-off valve 100, which uses the aforementioned spherical shut-off valve 100 adjustment device, comprising:

[0053] S100, place the spherical shut-off valve 100 on the support and positioning mechanism 1, and insert and position the valve seat 101 of the spherical shut-off valve 100 into the support and positioning mechanism 1. Press the clamping and measuring mechanism 2 onto the valve seat 101. Connect the first torque adjustment mechanism 3 and the second torque adjustment mechanism 4 to the first end cap 103 and the second end cap of the spherical shut-off valve 100 respectively.

[0054] In step S100, the spherical shut-off valve 100 is placed on the support positioning mechanism 1, and the valve seat 101 is inserted and positioned into the support positioning mechanism 1. The pressing and measuring mechanism 2 is pressed onto the valve seat 101, thereby achieving the limiting and positioning of the spherical shut-off valve 100. The first torque adjustment mechanism 3 and the second torque adjustment mechanism 4 are respectively connected to the first end cover 103 and the second end cover, so that the first end cover 103 and the second end cover can be screwed on in the future to realize the assembly and adjustment of the spherical shut-off valve 100.

[0055] S200: Obtain the coaxiality between the valve seat 101 and the ball 102 of the ball stop valve 100, and determine the coaxiality deviation value based on the coaxiality.

[0056] In step S200, the coaxiality between valve seat 101 and ball 102 can be obtained by pressing and measuring mechanism 2, and the deviation between the current coaxiality and the target coaxiality (determined according to actual design requirements) is compared to obtain the coaxiality deviation value.

[0057] S300: Obtain the torque of the first end cap 103 and the torque of the second end cap, and control the first torque adjustment mechanism 3 and the second torque adjustment mechanism 4 to correspondingly rotate the first end cap 103 and the second end cap until the torque of the first end cap 103 and the torque of the second end cap are within the torque qualified range, and the coaxiality deviation value is less than the deviation threshold.

[0058] In step S300, the torque of the first end cap 103 and the torque of the second end cap can be obtained through the first torque adjustment mechanism 3 and the second torque adjustment mechanism 4. Based on the magnitude of the torque, the first end cap 103 and the second end cap are controlled to be turned until the torque of the first end cap 103 and the torque of the second end cap are within the torque qualified range. The torque qualified range should be determined according to the actual design requirements. Generally speaking, the torque should be less than the rated torque and greater than the minimum torque threshold, so as to ensure the sealing of the end cap and avoid the end cap connection being too tight, which would affect the service life.

[0059] The ball stop valve 100 adjustment method of the present invention can realize the assembly and adjustment of the ball stop valve 100. By turning the first end cap 103 and the second end cap, the position of the ball 102 relative to the valve seat 101 can be adjusted, thereby adjusting the coaxiality between the ball 102 and the valve seat 101, and ensuring that the torque at the first end cap 103 and the second end cap meets the requirements, thereby improving the assembly accuracy and assembly efficiency of the ball stop valve 100.

[0060] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

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

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

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A spherical gate valve adjustment device, wherein the spherical gate valve comprises a valve seat, a ball, a first end cap, and a second end cap, characterized in that, It includes a support positioning mechanism, a clamping and measuring mechanism, a first torque adjustment mechanism, a second torque adjustment mechanism, and a platform, wherein: The support and positioning mechanism is installed on the platform, the valve seat is placed on the support and positioning mechanism, and the support and positioning mechanism is inserted and positioned with the valve seat; The clamping measuring mechanism is slidably connected to the platform, and the clamping measuring mechanism is pressed against the valve seat and the ball to obtain the coaxiality of the valve seat and the ball; The clamping and measuring mechanism includes a sliding bracket, a lifting structure, a clamping structure, and a measuring structure. The sliding bracket is slidably connected to the platform. The clamping structure and the measuring structure are connected to the sliding bracket via the lifting structure. The clamping structure is used to press against the upper end face and inner circular surface of the valve seat to limit the movement of the spherical shut-off valve. The measuring structure is pressed against the outer surface of the ball to measure the displacement of the ball and determine the coaxiality between the ball and the valve seat. The first torque adjustment mechanism and the second torque adjustment mechanism are slidably connected to the platform and respectively connected to the first end cover and the second end cover, so as to twist the first end cover and the second end cover. By twisting the first end cover and the second end cover, the ball is driven, the coaxiality of the valve seat and the ball is adjusted, and the torque of the first end cover and the torque of the second end cover are obtained. The measuring structure includes a measuring part and a driving part connected to each other. The driving part drives the measuring part to move toward the sphere to press against the outer surface of the sphere. The first torque adjustment mechanism includes a first sliding structure and a first twisting structure. The first twisting structure is provided with a first torque sensor and is slidably connected to the platform through the first sliding structure. The first twisting structure is used to twist the first end cap and obtain the torque of the first end cap. The second torque adjustment mechanism includes a second sliding structure and a second twisting structure. The second twisting structure is provided with a second torque sensor and is slidably connected to the platform through the second sliding structure. The second twisting structure is used to twist the second end cap and obtain the torque of the second end cap.

2. The spherical shut-off valve adjustment device according to claim 1, characterized in that, The support and positioning mechanism includes a column and a base. The column is connected to the platform, and the base is connected to the column. The base is provided with a first positioning post and a second positioning post. The valve seat is placed on the base. The lower end face of the valve seat has a first mounting hole and a second mounting hole. The first mounting hole and the second mounting hole are respectively inserted into the first positioning post and the second positioning post.

3. The spherical shut-off valve adjustment device according to claim 1, characterized in that, The pressing structure includes a first pressing part and a second pressing part. The first pressing part is connected to the lifting structure and is used to press against the upper end face of the valve seat. The second pressing part is slidably connected to the lifting structure and is used to press against the inner circular surface of the valve seat.

4. The spherical shut-off valve adjustment device according to claim 1, characterized in that, The first screwing structure includes a first driving member and a first screwing member. The first screwing member is connected to the first driving member. The first screwing member is provided with a first plug and a second plug. The first end cap is provided with a first plug hole and a second plug hole. The first plug and the second plug are respectively inserted into the first plug hole and the second plug hole. The second screwing structure includes a second driving member and a second screwing member. The second screwing member is connected to the second driving member. The second screwing member is provided with a third plug and a fourth plug. The second end cap is provided with a third plug hole and a fourth plug hole. The third plug and the fourth plug are respectively inserted into the third plug hole and the fourth plug hole.

5. The spherical shut-off valve adjustment device according to claim 3, characterized in that, The second pressing part includes a connecting seat, a first bearing and a second bearing. The connecting seat is slidably connected to the lifting structure. The connecting seat is provided with a first rotating shaft and a second rotating shaft extending toward the inner cavity of the valve seat. The first bearing and the second bearing are respectively connected to the first rotating shaft and the second rotating shaft.

6. The spherical shut-off valve adjustment device according to claim 1, characterized in that, The lifting structure includes a third driving component, a guide column, and a connecting plate. The sliding bracket is provided with a guide sleeve to be sleeved and connected to the guide column. The third driving component is connected to the connecting plate. The pressing structure and the measuring structure are connected to the connecting plate.

7. A method for adjusting a spherical shut-off valve, characterized in that, The ball valve adjustment device according to any one of claims 1 to 6 includes: Place the spherical shut-off valve on the support and positioning mechanism, and insert and position the valve seat of the spherical shut-off valve into the support and positioning mechanism. Press the clamping and measuring mechanism onto the valve seat, and connect the first torque adjustment mechanism and the second torque adjustment mechanism to the first end cover and the second end cover of the spherical shut-off valve respectively. Obtain the coaxiality between the valve seat and the ball of the ball stop valve, and determine the coaxiality deviation value based on the coaxiality; The torque of the first end cap and the torque of the second end cap are obtained, and the first torque adjustment mechanism and the second torque adjustment mechanism are controlled to turn the first end cap and the second end cap respectively until the torque of the first end cap and the torque of the second end cap are within the qualified torque range, and the coaxiality deviation value is less than the deviation threshold.

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