Evenly-stressed plug valve plug sealing surface grinding mechanism

Abstract

The invention relates to the technical field of valve body grinding, and provides a uniform-stress grinding mechanism for a plug sealing surface of a plug valve, the grinding mechanism comprises a valve body frame for fixing a valve body, a plug frame for fixing a plug, a first power part movably arranged on the plug frame and a grinding part; one end of the grinding piece is detachably connected to the power output end of the first power piece, a plurality of chip removal channels are formed in the two sides of the grinding piece correspondingly, and the direction of the chip removal channels is consistent with the direction of the inner side wall of the valve body; the cock frame is used for driving the grinding piece to move to one side to abut against the inner side wall of the valve body, and the cock frame is further used for driving the other side of the cock to abut against the grinding piece; the first power piece is used for driving the grinding piece to rotate between the inner side wall of the valve body and the sealing face of the cock, and the chip removal channel is used for discharging chips in the grinding process. According to the grinding mechanism, chippings generated in the grinding process can be discharged in time.

Description

Technical Field

[0001] This application relates to the technical field of valve body grinding, and particularly to a grinding mechanism for the plug sealing surface of a globe valve with uniform force application. Background Art

[0002] A globe valve is a type of plug valve with a simple structure and good sealing performance, which is widely used in industries such as petroleum, chemical, pharmaceutical, and food. To ensure the sealing performance of the globe valve, it is necessary to grind between the plug of the globe valve and the inner wall of the valve body to ensure that the globe valve can maintain good sealing performance.

[0003] In the related art, the grinding mechanism for the plug sealing surface of a globe valve fixes the globe valve body and controls the plug to press against the inner wall of the valve body while controlling the plug to rotate within the valve body. The above solution cannot timely discharge the debris generated after grinding, which will affect the sealing performance of the globe valve after grinding. Summary of the Invention

[0004] The embodiments of this application provide a grinding mechanism for the plug sealing surface of a globe valve with uniform force application, which can improve the technical problem in the related art that the debris generated during the grinding process cannot be discharged in time.

[0005] The embodiments of this application provide a grinding mechanism for the plug sealing surface of a globe valve with uniform force application, including: A valve body frame for fixing the valve body; A plug frame movably arranged on the plug frame, and the plug frame is used for fixing the plug; A first power member movably arranged on the plug frame; and A grinding member, one end of the grinding member is detachably connected to the power output end of the first power member, and a plurality of chip discharge channels are respectively arranged on both sides of the grinding member, and the direction of the chip discharge channels is the same as the direction of the inner side wall of the valve body; Wherein, the plug frame is used to drive the grinding member to move to one side to abut against the inner side wall of the valve body, and the plug frame is also used to drive the other side of the plug to abut against the grinding member; the first power member is used to drive the grinding member to rotate between the inner side wall of the valve body and the sealing surface of the plug, and the chip discharge channels are used to discharge the debris generated during the grinding process.

[0006] The above technical solutions in the embodiments of this application have at least the following technical effects: The lapping mechanism for the plug valve plug sealing surface with uniform force provided by the embodiments of the present application includes a valve body frame for fixing the valve body, a plug frame for fixing the plug, a first power member movably arranged on the plug frame, and a lapping member detachably connected to the power output end of the first power member. Open the plug valve to take out the valve body and the plug; fix the valve body on the valve body frame so that the valve body remains stationary during lapping; fix the lapping member on the power output end of the first power member, and fix the plug on the power output end of the first power member. Move the plug frame so that one side of the lapping member abuts against the inner side wall of the valve body, and then drive the plug to abut against the other side of the lapping member through the first power member; the first power member drives the lapping member to rotate so that the lapping member laps the plug and the inner side wall of the valve body. Compared with the solution of directly lapping the plug and the valve body, the above solution can set the material of the lapping member to a harder material to accelerate the lapping speed. In the case where the rotation of the plug is affected by the sealing surfaces of the plug and the valve body, the use of the lapping member can also restore the sealing surfaces of the plug and the valve body so as not to affect the rotation of the plug. A plurality of chip discharge channels are respectively arranged on both sides of the lapping member, which can timely discharge the debris in the lapping process of the above solution, thereby preventing the debris from affecting the lapping result.

[0007] In some embodiments, the lapping member includes: A lapping ring body, one end of the lapping ring body is detachably connected to the power output end of the first power member, and the other end of the lapping ring body abuts against the inner side wall of the valve body; and A plurality of lapping blocks, the plurality of lapping blocks are arranged on both sides of the lapping ring body; the plurality of lapping blocks located between the lapping ring body and the plug abut against the plug sealing surface, and the plurality of lapping blocks located between the lapping ring body and the inner wall of the valve body abut against the inner wall of the valve body; a plurality of chip discharge channels are formed between the plurality of lapping blocks.

[0008] In some embodiments, the lapping ring body is provided with a plurality of mounting holes; the plurality of lapping blocks located between the lapping ring body and the plug are movably arranged on the lapping ring body; the lapping member further includes: A pressure detection member, arranged on the side of the plurality of lapping blocks located between the lapping ring body and the plug facing the plug; An information processing member, electrically connected to the pressure detection member, the information processing member is used to receive and process the pressure information detected by the pressure detection member, and the information processing member generates and sends control information according to the pressure information; a control component, electrically connected to the information processing component, the control component being used to receive the control information and control the plurality of grinding blocks between the grinding ring body and the plug to move toward or away from the plug according to the control information, thereby making the force applied to each part of the plug uniform; and The second power member is arranged in the mounting hole, and the grinding block is arranged at the power output end of the second power member; the second power member is electrically connected to the control member, and the second power member is used to provide power for the control member.

[0009] In some embodiments, the grinding member also includes a first connecting member, one end of which is arranged at the power output end of the first power member, and the other end of the first connecting member is detachably connected to the grinding ring body so that the first power member can be connected to the grinding members of different sizes.

[0010] In some embodiments, the valve body frame includes: A placement platform, wherein the placement platform is provided with a fixed space, and the fixed space is connected to the external space; Two movable fixing members, wherein a part of the two movable fixing members is movably disposed in the fixing space, and another part of the two movable fixing members extends to the external space; the movable fixing members are provided with bolt holes of different sizes; and A plurality of bolts of different sizes, wherein the sizes of the bolts correspond one to one with the sizes of the bolt holes; The two movable fixing members are used to move to both sides of the valve body so that the threaded holes on the movable fixing members are connected with the threaded holes on the valve body, so that bolts of corresponding sizes can fix the valve body between the two movable fixing members.

[0011] In some embodiments, the placement platform is provided with a restricted space, and the restricted space is connected to the fixed space; the valve body frame further includes: A limiting rod is arranged in the fixing space, the extending direction of the limiting rod is perpendicular to the moving direction of the movable fixing member, and the limiting rod is located in the middle of the fixing space; A second connecting member is movably disposed on the limiting rod; A first connecting rod, one end of which is hinged to one end of the connecting member, and the other end of which is hinged to one of the movable fixing members; A second connecting rod, one end of the second connecting rod is hinged to the other end of the connecting member, and the other end of the second connecting rod is hinged to another movable fixed member; and the length of the first connecting rod is the same as the length of the second connecting rod.

[0012] In some embodiments, the stopcock holder comprises: Two fixing brackets are arranged on the placement table, and moving grooves perpendicular to the placement table are arranged on the fixing brackets, and the positions of the two moving grooves are arranged at corresponding positions on the two fixing brackets; A third power member is arranged on the placement table, and the third power member has two power output ends, and the two power output ends move synchronously; one of the power output ends is located in one of the moving grooves, and the other power output end is located in the other moving groove; and An adjusting rod, one end of the adjusting rod is connected to one of the power output members, and the other end of the adjusting rod is connected to the other power output member.

[0013] In some embodiments, the fixing bracket has an installation space, and the third power member includes: A motor is arranged on the placement table; the motor includes a rotating rod, and the rotating rod is arranged in the installation space; Two gears are arranged on the rotating rod, and the rotation axes of the gears are on the same straight line as the rotation axis of the rotating rod, and the two gears are respectively located directly below the two moving grooves; Two racks, one ends of the two racks are respectively connected to both ends of the adjusting rod, and the racks are movably arranged in the moving grooves, and the racks are engaged with the gears.

[0014] In some embodiments, the grinding mechanism further includes a storage cabinet, and the storage cabinet is arranged below the placement table to facilitate placing grinding components of different specifications.

[0015] In some embodiments, the grinding mechanism further includes a water spraying member, and the water spraying member is arranged on a side of the connecting member facing away from the valve body, so that the water spraying member sprays water towards the plurality of grinding blocks, thereby driving the debris generated during the grinding process to move to the bottom of the valve body. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a plug valve plug sealing surface grinding mechanism with uniform force provided by an embodiment of the present application; Figure 2Schematic three-dimensional structure diagram of some third power components provided by the embodiments of the present application; Figure 3 Schematic three-dimensional structure diagram of the bolt provided by the embodiments of the present application; Figure 4 Front view structure diagram of the plug valve plug sealing surface grinding mechanism with uniform force provided by the embodiments of the present application; Figure 5 For Figure 4 Cross-sectional structure diagram of line A-A in Figure 6 For Figure 4 Cross-sectional structure diagram of line B-B in Figure 7 For Figure 4 Local enlarged structure diagram at position C in Figure 8 Schematic working principle diagram of the grinding part provided by the embodiments of the present application.

[0018] Among them, each reference numeral in the figure: 10. Valve body frame; 11. Placement table; 110. Fixed space; 111. Restriction space; 12. Moving and fixing part; 120. Bolt hole; 13. Bolt; 14. Limit rod; 15. Second connecting part; 16. First connecting rod; 17. Second connecting rod; 20. Plug frame; 21. Fixed frame; 210. Moving groove; 22. Third power part; 221. Motor; 2211. Rotating rod; 222. Gear; 223. Rack; 23. Adjusting rod; 30. First power part; 40. Grinding part; 400. Chip removal channel; 41. Grinding ring body; 410. Installation hole; 42. Grinding block; 43. Pressure detection part; 44. Information processing part; 45. Control part; 46. Second power part; 47. First connecting part; 50. Storage cabinet; 60. Water spraying part. Detailed implementation manners

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are for the purpose of describing particular embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0021] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0024] In this application, "and / or" is merely a description of the association relationship of the associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0025] It should be noted that in this application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to give examples, illustrations or explanations. Any embodiment or design described as "in some embodiments", "exemplarily", "for example" in this application should not be construed as being more preferred or having more advantages than other embodiments or designs. Rather, the use of words such as "in some embodiments", "exemplarily", "for example" is intended to present relevant concepts in a specific manner, meaning that the specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of this application. The appearance of the above words at various positions in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0026] A plug valve is a kind of plug, which has a simple structure and good sealing performance, and is widely used in industries such as petroleum, chemical industry, pharmacy, and food; in order to ensure the sealing performance of the plug valve, it is necessary to grind between the plug of the plug valve and the inner wall of the valve body to ensure that the plug valve can maintain good sealing performance.

[0027] The plug valve plug sealing surface grinding mechanism with uniform force in the related art fixes the plug valve body and controls the plug to press against the inner wall of the valve body, and at the same time controls the plug to rotate in the valve body; the above scheme cannot timely discharge the debris after grinding, which will affect the sealing performance of the plug valve after grinding.

[0028] Based on this, in order to improve the technical problem that the debris generated during the grinding process in the related art cannot be discharged in time, the embodiments of this application provide the following solutions.

[0029] Please refer to Figures 1 to 5 together, the embodiments of this application provide a plug valve plug sealing surface grinding mechanism with uniform force, and the grinding mechanism includes a valve body frame 10, a plug frame 20, a first power member 30 and a grinding member 40; where: The valve body frame 10 is used to fix the valve body.

[0030] The plug frame 20 is movably arranged on the plug frame 20, and the plug frame 20 is used to fix the plug.

[0031] The first power member 30 is movably arranged on the plug frame 20.

[0032] One end of the grinding member 40 is detachably connected to the power output end of the first power member 30, and a plurality of chip discharge channels 400 are respectively formed on both sides of the grinding member 40, and the direction of the chip discharge channels 400 is the same as the direction of the inner side wall of the valve body.

[0033] Among them, the plug holder 20 is used to drive the grinding member 40 to move to one side and abut against the inner side wall of the valve body, and the plug holder 20 is also used to drive the other side of the plug to abut against the grinding member 40; the first power member 30 is used to drive the grinding member 40 to rotate between the inner side wall of the valve body and the sealing surface of the plug, and the chip removal channel 400 is used to discharge the debris during the grinding process.

[0034] It can be understood that the valve body holder 10 is a component for fixing the valve body; for example, the valve body holder 10 can be two movable plates with bolt holes 120 and bolts 13, and the valve body is fixed between the two movable plates through the bolts 13; for another example, the valve body holder 10 can also be a semi-circular fixed holder, and the connection part of the plug valve body is placed on the semi-circular fixed holder.

[0035] The plug holder 20 is a component for fixing the plug; for example, the plug holder 20 can be a robotic arm.

[0036] The first power member 30 is a device for providing power to the grinding member 40; for example, the first power member 30 can be an electric motor or a motor, etc.

[0037] The grinding member 40 is a component for sealing the plug and the sealing surface of the valve body; for example, the grinding member 40 can be a component composed of a grinding ring body 41 and a plurality of grinding blocks 42; for another example, the grinding member 40 can also be a grinding rod, and the grinding rod is arranged between the plug and the side wall of the valve body.

[0038] As can be seen from the above, a grinding mechanism for the plug valve plug sealing surface with uniform force provided by the embodiments of the present application includes a valve body frame 10 for fixing the valve body, a plug frame 20 for fixing the plug, a first power member 30 movably disposed on the plug frame 20, and a grinding member 40 detachably connected to the power output end of the first power member 30. Open the plug valve to remove the valve body and the plug; fix the valve body on the valve body frame 10 so that the valve body remains stationary during grinding; fix the grinding member 40 to the power output end of the first power member 30, and fix the plug to the power output end of the first power member 30. By moving the plug frame 20, one side of the grinding member 40 abuts against the inner side wall of the valve body, and then the first power member 30 drives the plug to abut against the other side of the grinding member 40; the first power member 30 drives the grinding member 40 to rotate so that the grinding member 40 grinds the plug and the inner side wall of the valve body. Compared with the scheme of directly grinding the plug and the valve body, the above scheme can set the material of the grinding member 40 to a harder material to accelerate the grinding speed. In the case where the rotation of the plug is affected by the sealing surfaces of the plug and the valve body, the use of the grinding member 40 can also restore the sealing surfaces of the plug and the valve body so as not to affect the rotation of the plug. A plurality of chip discharge channels 400 are respectively formed on both sides of the grinding member 40, which can timely discharge the debris generated during the grinding process of the above scheme, thereby preventing the debris from affecting the grinding result.

[0039] In some embodiments, please refer to Figures 1 to 7 together, the grinding member 40 includes a grinding ring body 41 and a plurality of grinding blocks 42; where: One end of the grinding ring body 41 is detachably connected to the power output end of the first power member 30, and the other end of the grinding ring body 41 abuts against the inner side wall of the valve body.

[0040] A plurality of grinding blocks 42 are disposed on both sides of the grinding ring body 41; a plurality of grinding blocks 42 located between the grinding ring body 41 and the plug abut against the plug sealing surface, and a plurality of grinding blocks 42 located between the grinding ring body 41 and the inner wall of the valve body abut against the inner wall of the valve body; a plurality of chip discharge channels 400 are formed between the plurality of grinding blocks 42.

[0041] It can be understood that the grinding ring body 41 is a component for providing an installation position for the grinding blocks 42; for example, the grinding ring body 41 can be a metal ring body having the same shape as the inner side wall of the valve body. The grinding blocks 42 are components for grinding the plug and the inner side wall of the valve body; for example, the grinding blocks 42 can be metal rods with a triangular cross-section or metal rods with a fan-shaped cross-section.

[0042] In this arrangement, by configuring the grinding member 40 as a component composed of a grinding ring 41 and a plurality of grinding blocks 42, placing the plug and the inner wall of the valve body on both sides of the grinding member 40, and applying an external force to the plug to apply a force to the plug and the inner wall of the valve body, the grinding rate can be accelerated. Compared with the solution in which the grinding member 40 is configured as a grinding rod, the above solution can control the magnitude of the force on the plug and the inner wall of the valve body, so that the plug and the inner wall of the valve body can be subjected to a uniform force, thereby improving the grinding effect.

[0043] Optionally, in some embodiments, see Figures 6 to 8 The grinding ring body 41 is provided with a plurality of mounting holes 410; a plurality of grinding blocks 42 located between the grinding ring body 41 and the plug are movably arranged on the grinding ring body 41; the grinding member 40 further includes: The pressure detection member 43 is disposed on a side of the plurality of grinding blocks 42 between the grinding ring body 41 and the plug facing the plug.

[0044] The information processing component 44 is electrically connected to the pressure detecting component 43 , and is used to receive and process the pressure information detected by the pressure detecting component 43 , and the information processing component 44 generates and sends control information according to the pressure information.

[0045] The control component 45 is electrically connected to the information processing component 44, and is used to receive control information and control the multiple grinding blocks 42 located between the grinding ring body 41 and the plug to move toward or away from the plug according to the control information, thereby making the force on each part of the plug uniform.

[0046] The second power member 46 is disposed in the mounting hole 410 , and the grinding block 42 is disposed at the power output end of the second power member 46 ; the second power member 46 is electrically connected to the control member 45 , and the second power member 46 is used to provide power for the control member 45 .

[0047] It can be understood that the pressure detection member 43 is a member for detecting the pressure on the grinding block 42; for example, the pressure detection member 43 can be a strain gauge pressure sensor or a capacitive pressure sensor. The information processing member 44 is a member for processing information and generating control information; for example, the information processing member 44 can be a programmable logic controller (PLC) or a single-chip microcomputer. The control member 45 is a member for controlling the second power member 46 according to the control information; for example, the control member 45 can be a programmable logic controller (PLC) or a remote terminal unit (RTU). The second power member 46 is a device for providing power to the grinding block 42; for example, the second power member 46 can be a linear motor or a cylinder.

[0048] With such a setting, by setting the grinding block 42 as a movable component, the grinding block 42 can contract or extend in a timely manner, so that the grinding block 42 can adapt to the water through-hole of the plug of the cock valve, thereby preventing part of the grinding block 42 from extending into the water through-hole and finally preventing the grinding block 42 from damaging the water through-hole. By setting up structures such as a pressure detection component 43, an information processing component 44, a control component 45, and a second power component 46; the above structures can detect the pressure information received by the grinding block 42 through the pressure detection component 43 and send the pressure information to the information processing component 44. The information processing component 44 generates control information based on the pressure information and sends the control information to the control component 45. The control component 45 controls the second power component 46 according to the control information, and the second power component 46 controls the grinding block 42 to move towards or away from the plug; the above structures can accurately detect whether the grinding block 42 is inside the water through-hole of the plug of the cock valve and control the grinding block 42 to move towards or away from the plug according to the detected position of the grinding block 42. The pressure information is divided into two categories: non-zero pressure and zero pressure. The control information is divided into two categories: forward current and reverse current. The forward current controls the grinding block 42 to move towards the plug through the second power component 46, and the reverse current controls the grinding block 42 to move away from the plug through the second power component 46.

[0049] Optionally, please refer to Figures 1 to 5 , the grinding member 40 further includes a first connecting member 47. One end of the first connecting member 47 is disposed at the power output end of the first power member 30, and the other end of the first connecting member 47 is detachably connected to the grinding ring body 41, so that the first power member 30 can be connected to grinding members 40 of different sizes.

[0050] It can be understood that the first connecting member 47 is a component for transmitting the power of the first power member 30 to the grinding ring body 41; for example, the first connecting member 47 can be a circular ring body or a robotic arm, etc.

[0051] With such a setting, by setting the first connecting member 47, the first power member 30 is indirectly connected to the grinding ring body 41, so that the size of the grinding ring body 41 can be reduced, which is convenient for storing the grinding ring body 41. And since the grinding block 42 is a consumable, reducing the volume of the grinding ring body 41 can reduce the replacement cost.

[0052] Exemplarily, please refer to Figures 1 to 4 , the valve body frame 10 includes a placement table 11, two moving and fixing members 12, and a plurality of bolts 13 of different sizes; where: The placement table 11 is provided with a fixing space 110, and the fixing space 110 communicates with the external space.

[0053] Two movable fixing members 12 are partially movably arranged in the fixed space 110, and the other part extends to the external space; bolt holes 120 of different sizes are formed in the movable fixing members 12.

[0054] The sizes of the bolts 13 correspond to the sizes of the bolt holes 120 one by one.

[0055] Among them, the two movable fixing members 12 are used to move to both sides of the valve body so that the threaded holes on the movable fixing members 12 communicate with the threaded holes on the valve body, and then the bolts 13 of corresponding sizes can fix the valve body between the two movable fixing members 12.

[0056] It can be understood that the placement table 11 is a component for placing the valve body; for example, the placement table 11 can be a metal plate or a metal table, etc. The movable fixing member 12 is a component for helping to fix the valve body; for example, the movable fixing member 12 can be a metal plate or a metal block, etc.

[0057] With such a setting, by providing bolt holes 120 on the movable fixing members 12, the sizes of the bolt holes 120 correspond to the sizes of the bolts 13 one by one, and the movable fixing members 12 are movably arranged in the fixed space 110; the above settings can enable the valve body holder 10 to fix valve bodies of different sizes, and the valve body is fixed between the two movable fixing members 12 by the bolts 13, which can prevent the valve body from moving during the grinding process, so as to better perform grinding.

[0058] In some embodiments, please refer to Figures 1 to 8 , the placement table 11 is provided with a limiting space 111, and the limiting space 111 communicates with the fixed space 110; the cock holder 20 further includes a limiting rod 14, a second connecting member 15, a first connecting rod 16 and a second connecting rod 17; wherein: The limiting rod 14 is arranged in the fixed space 110, the extending direction of the limiting rod 14 is perpendicular to the moving direction of the movable fixing member 12, and the limiting rod 14 is located in the middle of the fixed space 110.

[0059] The second connecting member 15 is movably arranged on the limiting rod 14.

[0060] One end of the first connecting rod 16 is hinged to one end of the connecting member, and the other end of the first connecting rod 16 is hinged to one of the movable fixing members 12.

[0061] One end of the second connecting rod 17 is hinged to the other end of the connecting member, and the other end of the second connecting rod 17 is hinged to the other movable fixing member 12; and the lengths of the first connecting rod 16 and the second connecting rod 17 are the same.

[0062] It can be understood that the limit rod 14 is a component for restricting the moving direction of the second connecting member 15. For example, the limit rod 14 can be a metal rod or a metal strip, etc. The second connecting member 15 is a component for connecting the first connecting rod 16 and the second connecting rod 17; for example, the second connecting member 15 can be a metal block or a metal housing, etc. The first connecting rod 16 is a component for connecting the second connecting member 15 and one of the moving fixing members 12. The second connecting rod 17 is a component for connecting the second connecting member 15 and the other moving fixing member 12.

[0063] With such a setting, by moving one of the moving fixing members 12, it drives the second connecting member 15 to move on the limit rod 14 through the first connecting rod 16, and the second connecting member 15 drives the other moving fixing member 12 to move through the second connecting rod 17; the above solution can make the distances between the two moving fixing members 12 and the limit rod 14 equal, so that the centers of valve bodies of different sizes are always in the same position.

[0064] Optionally, in some embodiments, please refer to Figures 1 to 6 , the plug holder 20 includes two fixing brackets 21, a third power member 22 and an adjusting rod 23; where: The two fixing brackets 21 are arranged on the placement table 11, and a moving groove 210 perpendicular to the placement table 11 is arranged on the fixing bracket 21, and the positions of the two moving grooves 210 are arranged at corresponding positions on the two fixing brackets 21.

[0065] The third power member 22 is arranged on the placement table 11, and the third power member 22 has two power output ends, and the two power output ends move synchronously; one power output end is located in one of the moving grooves 210, and the other power output end is located in the other moving groove 210.

[0066] One end of the adjusting rod 23 is connected to one of the power output members, and the other end of the adjusting rod 23 is connected to the other power output member.

[0067] It can be understood that the fixing bracket 21 is a component for placing the adjusting rod 23; for example, the fixing bracket 21 can be a metal cylinder or a metal cuboid, etc. The third power member 22 is a device for providing power for the adjusting rod 23; for example, the third power member 22 can be a linear motor or a cylinder, etc. The adjusting rod 23 is a component for moving the grinding member 40; for example, the adjusting rod 23 can be a metal round rod or a metal square rod, etc.

[0068] With such a setting, the third power member 22 drives the adjusting rod 23 to move on the two fixing brackets 21, thereby controlling the height of the adjusting rod 23; compared with directly adjusting the grinding member 40, the above solution can enhance the stability during the moving process.

[0069] Optionally, please refer to Figures 1 to 7, the fixing frame 21 has an installation space, and the third power member 22 includes a motor 221, two gears 222 and two racks 223; where: The motor 221 is arranged on the placement table 11; the motor 221 includes a rotating rod 2211, and the rotating rod 2211 is arranged in the installation space.

[0070] The two gears 222 are arranged on the rotating rod 2211, and the rotation axes of the gears 222 and the rotating rod 2211 are on the same straight line, and the two gears 222 are respectively located directly below the two moving grooves 210.

[0071] One ends of the two racks 223 are respectively connected to both ends of the adjusting rod 23, and the racks 223 are movably arranged in the moving grooves 210, and the racks 223 are engaged with the gears 222.

[0072] It can be understood that the motor 221 is a component for providing power to the two gears 222; for example, the motor 221 can be a rotating motor. The gear-rack assembly is a component for transmitting the power of the motor 221 to the adjusting rod 23.

[0073] With such an arrangement, the motor 221 controls the heights of both ends of the adjusting rod 23 through the gear-rack assembly; compared with using two motors 221, the solution of combining one motor 221 and two sets of gear-rack assemblies can ensure that the heights of both ends of the adjusting rod 23 are always kept consistent.

[0074] In some embodiments, please refer to Figures 1 to 4 , the grinding mechanism further includes a storage cabinet 50, and the storage cabinet 50 is arranged below the placement table 11 to facilitate the placement of grinding assemblies of different specifications.

[0075] With such an arrangement, since the above solution can be applied to valve bodies of various sizes, there are many accessories, thus causing problems in the storage of accessories. By arranging the storage cabinet 50 below the placement table 11, not only can the accessories be stored, but also a moving space can be provided for the rack 223.

[0076] In some embodiments, please refer to Figure 6 , the grinding mechanism further includes a water spraying member 60, and the water spraying member 60 is arranged on the side of the connecting member facing away from the valve body, so that the water spraying member 60 sprays water towards the plurality of grinding blocks 42, thereby driving the debris generated during the grinding process to move to the bottom of the valve body.

[0077] It can be understood that the water spraying member 60 is a device for spraying water on the grinding area; for example, the water spraying member 60 can be a device composed of a small water pump, a small water storage bucket, a small water pipe and a small nozzle.

[0078] With such a setting, water spraying is performed on the grinding area by setting the water spraying member 60, so as to cool the grinding area and discharge the debris generated during the grinding process from the grinding area.

[0079] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, 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 grinding mechanism for the plug sealing surface of a globe valve with uniform force distribution, characterized in that, Comprising: A valve body frame for fixing the valve body; A plug frame movably arranged on the plug frame, and the plug frame is used for fixing the plug; A first power member movably arranged on the plug frame; And A grinding member, one end of the grinding member is detachably connected to the power output end of the first power member, and a plurality of chip discharge channels are respectively formed on both sides of the grinding member, and the direction of the chip discharge channels is consistent with the direction of the inner side wall of the valve body; Wherein, the plug frame is used to drive the grinding member to move to one side to abut against the inner side wall of the valve body, and the plug frame is also used to drive the other side of the plug to abut against the grinding member; the first power member is used to drive the grinding member to rotate between the inner side wall of the valve body and the sealing surface of the plug, and the chip discharge channels are used to discharge the chips during the grinding process.

2. The grinding mechanism according to claim 1, characterized in that, The grinding member includes: A grinding ring body, one end of the grinding ring body is detachably connected to the power output end of the first power member, and the other end of the grinding ring body abuts against the inner side wall of the valve body; and A plurality of grinding blocks arranged on both sides of the grinding ring body; a plurality of the grinding blocks located between the grinding ring body and the plug abut against the plug sealing surface, and a plurality of the grinding blocks located between the grinding ring body and the inner wall of the valve body abut against the inner wall of the valve body; a plurality of chip discharge channels are formed between the plurality of grinding blocks.

3. The grinding mechanism according to claim 2, wherein, The grinding ring body is provided with a plurality of mounting holes; A plurality of the grinding blocks located between the grinding ring body and the plug are movably arranged on the grinding ring body; The grinding member further includes: A pressure detection member arranged on one side of a plurality of the grinding blocks located between the grinding ring body and the plug facing the plug; An information processing member electrically connected to the pressure detection member, the information processing member is used to receive and process the pressure information detected by the pressure detection member, and the information processing member generates and sends control information according to the pressure information; A control member electrically connected to the information processing member, the control member is used to receive the control information and control the plurality of the grinding blocks located between the grinding ring body and the plug to move towards or away from the plug according to the control information, so as to make the forces on each part of the plug uniform; and A second power member arranged in the mounting hole, and the grinding block is arranged on the power output end of the second power member; the second power member is electrically connected to the control member, and the second power member is used to provide power for the control member.

4. The grinding mechanism according to claim 2, wherein: The grinding member further includes a first connecting member, one end of the first connecting member is arranged at the power output end of the first power member, and the other end of the first connecting member is detachably connected to the grinding ring body, so that the first power member can be connected to the grinding members of different sizes.

5. The grinding mechanism according to claim 1, characterized in that, The valve body frame includes: A placement table, the placement table is provided with a fixing space, and the fixing space is communicated with the external space; Two moving fixing members, part of the two moving fixing members are movably arranged in the fixing space, and the other part extends to the external space; different-sized bolt holes are formed in the moving fixing members; and Multiple bolts of different sizes, the sizes of the bolts corresponding one-to-one to the sizes of the bolt holes; Wherein, the two movable fixing members are used to move to both sides of the valve body so that the threaded holes on the movable fixing members communicate with the threaded holes on the valve body, and thus bolts of corresponding sizes can fix the valve body between the two movable fixing members.

6. The grinding mechanism according to claim 5, wherein, The placement table is provided with a limiting space, and the limiting space communicates with the fixing space; the valve body frame further includes: A limiting rod, arranged in the fixing space, the extending direction of the limiting rod being perpendicular to the moving direction of the movable fixing member, and the limiting rod being located in the middle of the fixing space; A second connecting member, movably arranged on the limiting rod; A first connecting rod, one end of the first connecting rod being hinged to one end of the connecting member, and the other end of the first connecting rod being hinged to one of the movable fixing members; A second connecting rod, one end of the second connecting rod being hinged to the other end of the connecting member, and the other end of the second connecting rod being hinged to the other movable fixing member; and the lengths of the first connecting rod and the second connecting rod are the same.

7. The grinding mechanism according to claim 5, characterized in that, The plug cock frame includes: Two fixing frames, arranged on the placement table, and the fixing frames are provided with moving grooves perpendicular to the placement table, and the positions of the two moving grooves are arranged at corresponding positions on the two fixing frames; A third power member, arranged on the placement table, and the third power member has two power output ends, and the two power output ends move synchronously; one of the power output ends is located in one of the moving grooves, and the other power output end is located in the other moving groove; and An adjusting rod, one end of the adjusting rod being connected to one of the power output members, and the other end of the adjusting rod being connected to the other power output member.

8. The grinding mechanism according to claim 7, wherein, The fixing frame has an installation space, and the third power member includes: A motor, arranged on the placement table; the motor includes a rotating rod, and the rotating rod is arranged in the installation space; Two gears, the two gears being arranged on the rotating rod, and the rotation axes of the gears are on the same straight line as the rotation axis of the rotating rod, and the two gears are respectively located directly below the two moving grooves; Two racks, one ends of the two racks are respectively connected to both ends of the adjusting rod, and the racks are movably arranged in the moving grooves, and the racks are engaged with the gears.

9. The grinding mechanism according to claim 5, characterized in that: The grinding mechanism further includes a storage cabinet, and the storage cabinet is arranged below the placement table to facilitate the placement of grinding components of different specifications.

10. The grinding mechanism according to claim 2, wherein: The grinding mechanism further includes a water spraying member, and the water spraying member is arranged on the side of the connecting member facing away from the valve body so that the water spraying member sprays water towards the plurality of grinding blocks, thereby driving the debris generated during the grinding process to move to the bottom of the valve body.

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