Efficient assembling device and method for large valve

Abstract

The invention discloses an efficient assembling device and method for a large valve, and belongs to the technical field of valve assembling. The efficient assembling device comprises a movable mounting frame, a device positioning assembly, a centering alignment mechanism and a hoisting connecting piece; the device positioning assembly is mounted on the movable mounting frame and comprises a positioning driving module, a positioning module and a supporting positioning module; a positioning module is mounted on the movable mounting frame, and a positioning driving module is mounted on the movable mounting frame; a supporting and positioning module is mounted on the movable mounting frame; a centering and aligning mechanism is installed on the upper side of the movable installation frame and comprises a movable module, a centering assembly and an aligning module. The moving module is installed on the moving installation frame, a centering assembly is installed at the moving end of the moving module, and an alignment module is installed at the moving end of the moving module. By means of the mode, the movable mounting frame is positioned through cooperation of the positioning module and the supporting and positioning module; and the valve rod, the inner valve cover and the upper valve cover are positioned through the centering assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of valve assembly, and in particular to a large-scale valve efficient assembly device and method thereof. Background Art

[0002] The main components of the valve include valve seat, valve stem, valve core, valve cover and seals; during assembly production, the valve seat is usually used as the basis, and then the various components are moved to the valve seat in turn through a moving device, and then assembled into the valve seat in turn.

[0003] For example, Chinese patent CN118023893B discloses a valve assembly machine, which drives the valve seat and valve ball to move, adjusts the posture of the valve seat and valve ball during the movement, so that they are aligned during assembly; and then drives the valve ball downward to move the valve ball into the valve seat to complete the assembly.

[0004] However, it is difficult to move and assemble large valves with this device; the related components of large valves are heavy, and the various components are usually moved by lifting devices; and during the lifting process, it is difficult to control the lifting accuracy and the posture of the components, and it is difficult to quickly align the center positions of the various components of the valve.

[0005] Based on this, the present invention designs a large-scale valve efficient assembly device and method thereof to solve the above-mentioned problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a large-scale valve efficient assembly device and method thereof.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A large-scale valve high-efficiency assembly device, comprising a mobile mounting frame, a device positioning assembly and a centering and positioning mechanism, and also comprising a hoisting connector for connecting a valve stem, an inner valve cover and an upper valve cover to an external hoisting device; The device positioning assembly is installed on the mobile mounting frame, and the device positioning assembly includes a positioning drive module, a positioning module and a supporting positioning module; two groups of positioning modules for holding the valve seat are installed on the mobile mounting frame, and a positioning drive module for driving the two groups of positioning modules is installed on the mobile mounting frame; a supporting positioning module is installed on the mobile mounting frame; A centering and alignment mechanism for positioning and lowering the valve stem, inner valve cover and upper valve cover is installed on the upper side of the mobile mounting frame, and the centering and alignment mechanism includes a mobile module, a centering assembly and an alignment module; the mobile module is installed on the mobile mounting frame, the mobile end of the mobile module is installed with a centering assembly, and the mobile end of the mobile module is installed with an alignment module.

[0008] Furthermore, the positioning drive module includes a positioning motor, a positioning threaded rod, a moving block and a limit slider. The positioning motor is fixedly installed on the moving mounting frame, the positioning threaded rod is rotatably installed on the moving mounting frame, and the output end of the positioning motor is fixedly connected to the positioning threaded rod; the moving block is threadedly connected to the positioning threaded rod through a threaded sleeve; the limit slider is symmetrically fixedly installed on the moving block; the limit slot is symmetrically opened on the moving mounting frame; the limit slider is limitedly slidably connected to the limit slot.

[0009] Furthermore, the positioning module includes two groups of synchronous rotation modules, a mobile positioning block and a fixed positioning block. The synchronous rotation modules are symmetrically installed on the mobile mounting frame. The synchronous rotation modules are connected to the mobile blocks. The mobile positioning blocks are fixedly installed on the synchronous rotation modules; the fixed positioning blocks are fixedly installed on the mobile mounting frame; the inner sides of the two mobile positioning blocks and the fixed positioning blocks are located on the same circumference.

[0010] Furthermore, the synchronous rotation module includes a connecting frame, a connecting shaft and a rotating arm, one end of the connecting frame is rotationally connected to the moving block, and the other end of the connecting frame is rotationally connected to one end of the rotating arm; the connecting shaft is fixedly installed on the moving mounting frame, the connecting shaft is rotationally connected to the middle part of the rotating arm, and the other end of the rotating arm is fixedly installed with a mobile positioning block.

[0011] Furthermore, the support positioning module includes a conformable positioning frame and rollers, the conformable positioning frame is fixedly installed on the lower side of the movable mounting frame, and the rollers are evenly installed on the lower side of the conformable positioning frame in a circular array with equal intervals and rotated uniformly.

[0012] Furthermore, the mobile module includes a support frame, a mobile drive module and a guide module. The support frame is fixedly mounted on the mobile mounting frame; the mobile drive module is mounted on the support frame, and the guide module for guiding the mobile end of the mobile drive module is mounted on the support frame.

[0013] Furthermore, the mobile drive module includes a mobile motor, a mobile threaded rod and a mobile frame. The mobile motor is fixedly installed on the support frame, and the mobile threaded rod is rotatably installed on the support frame; the output end of the mobile motor is fixedly connected to the mobile threaded rod; and the mobile frame is threadedly connected to the mobile threaded rod through a threaded sleeve.

[0014] Furthermore, the centering assembly includes a synchronous drive module and a centering module, the synchronous drive module is installed on the moving frame, and a plurality of groups of centering modules are evenly installed on the synchronous drive module in a circular array with equal spacing.

[0015] Furthermore, the synchronous drive module includes a fixed ring frame, a rotating ring frame, an incomplete gear, a driving gear and a centering motor. The fixed ring frame is fixedly mounted on the mobile frame, the rotating ring frame is rotatably mounted on the outside of the fixed ring frame, and the incomplete gear is fixedly mounted on the rotating ring frame; the driving gear is rotatably mounted on the mobile frame, and the incomplete gear is meshed and connected with the driving gear; the centering motor is fixedly mounted on the lower side of the mobile frame; and the output end of the centering motor is fixedly connected to the driving gear.

[0016] In order to better achieve the purpose of the present invention, the present invention also provides a method for using a large-scale valve efficient assembly device, comprising the following steps: Step 1: The hoisting equipment drives the device to move so that the supporting positioning modules are supported at both ends of the valve seat; the positioning drive module drives the positioning module to hold the middle of the valve seat so that the center of the positioning module is aligned with the center of the valve seat; Step 2: The lifting equipment drives the valve stem to move to the upper side of the valve seat through the lifting connector; the moving module drives the centering assembly to move to the middle of the valve stem; the centering assembly clamps the valve stem; the alignment module pushes the valve core to align the alignment groove with the alignment block; Step 3: The lifting equipment drives the valve stem and valve core to move vertically downward under the limiting action of the centering assembly and the alignment module. At the same time, the moving module drives the centering assembly and the alignment module to move vertically downward synchronously, and the valve stem and valve core are assembled into the valve seat; Step 4: The lifting equipment drives the inner valve cover to move to the upper side of the valve seat, the moving module drives the centering assembly to move upward, and the centering assembly positions the inner valve cover; the lifting equipment drives the inner valve cover to move downward, completing the assembly of the inner valve cover; Step 5: After the operator assembles the remaining structural parts of the valve, the lifting equipment drives the upper valve cover to move to the upper side of the valve seat, the moving module drives the centering assembly to move upward, and the centering assembly positions the upper valve cover; the lifting equipment drives the upper valve cover to move downward to complete the assembly of the upper valve cover.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The lifting equipment drives the device to move so that the supporting positioning module is supported at both ends of the valve seat; the positioning drive module drives the positioning module to hold the middle of the valve seat so that the center of the positioning module is aligned with the center of the valve seat; the lifting equipment drives the valve stem to move to the upper side of the valve seat through the lifting connector; the moving module drives the centering assembly to move to the middle of the valve stem; the centering assembly clamps the valve stem; the alignment module pushes the valve core so that the alignment groove is aligned with the alignment block; the lifting equipment drives the valve stem and the valve core to move vertically downward under the limiting action of the centering assembly and the alignment module, and at the same time, the moving module drives the centering assembly and the alignment module to move vertically downward synchronously to assemble the valve stem and the valve core into the valve seat; the lifting equipment drives the inner valve cover to move to the upper side of the valve seat, and the moving module drives the centering assembly to move upward, and the centering assembly positions the inner valve cover; the lifting equipment drives the inner valve cover to move downward, completing the inner valve cover assembly; after the operator assembles the remaining structural parts of the valve, the lifting equipment drives the upper valve cover to move to the upper side of the valve seat, the mobile module drives the centering assembly to move up, and the centering assembly positions the upper valve cover; the lifting equipment drives the upper valve cover to move down to complete the assembly of the upper valve cover; thus, through the cooperation of the positioning drive module, the positioning module and the supporting positioning module, the positioning of the mobile mounting frame and the mobile module, the centering assembly and the alignment module on the mobile mounting frame are completed; then the valve stem, valve core, inner valve cover and upper valve cover are positioned through the centering assembly; before the valve stem, valve core, inner valve cover and upper valve cover are lifted to the upper side of the valve seat for assembly, their centers quickly coincide with the valve seat, and the alignment groove on the valve core is aligned with the alignment block in the valve seat through the alignment module, so that the assembly is more accurate and efficient; in the assembly process of large valves, the components are quickly positioned to ensure the assembly accuracy and efficiency of large valves. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A three-dimensional diagram of a large valve high-efficiency assembly device of the present invention Figure 1 ; Figure 2 It is a front view of a large valve high-efficiency assembly device of the present invention; Figure 3 It is a left view of a large valve high-efficiency assembly device of the present invention; Figure 4 For along Figure 3 AA direction cross-sectional view; Figure 5 It is a schematic diagram of the valve core and valve stem and their connection structure; Figure 6 It is a schematic diagram of the inner valve cover and its connection structure; Figure 7 Schematic diagram of the upper valve cover structure; Figure 8 A three-dimensional diagram of a large valve high-efficiency assembly device of the present invention Figure 2 ; Fig. 9 A three-dimensional diagram of a large valve high-efficiency assembly device of the present invention Figure 3 ; Fig.10 for Figure 1 The enlarged view of point B in the middle; Fig.11 Schematic diagram of the mobile rack and its connection structure.

[0020] The numbers in the figure represent: 1. Mobile mounting frame; 2. Device positioning assembly; 21. Positioning drive module; 211. Positioning motor; 212. Positioning threaded rod; 213. Mobile block; 214. Limiting slider; 215. Limiting slide; 22. Positioning module; 221. Connecting frame; 222. Connecting shaft; 223. Rotating arm; 224. Mobile positioning block; 225. Fixed positioning block; 23. Support positioning module; 231. Conformal positioning frame; 232. Roller; 3. Centering and alignment mechanism; 31. Mobile module; 311. Support frame; 312. Mobile motor; 313. Mobile threaded rod; 314. Mobile frame; 315. Centering slider; 316. Guide rail; 32. Centering assembly; 321. Fixed ring Frame; 322, rotating ring frame; 323, incomplete gear; 324, driving gear; 325, centering motor; 326, limiting sleeve; 327, synchronous frame; 328, centering roller; 329, extension roller; 33, alignment module; 331, alignment cylinder; 332, alignment plate; 4, lifting connector; 41, valve stem connector; 411, threaded sleeve; 412, connecting suspension rod; 413, rotating disk; 414, valve stem suspension plate; 42, valve cover connector; 421, connecting rod; 422, limiting block; 423, valve cover suspension plate; 6, valve seat; 61, alignment block; 71, valve stem; 72, valve core; 721, alignment groove; 81, inner valve cover; 82, upper valve cover; 91, connecting hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0023] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 7 , a large valve high-efficiency assembly device, comprising a mobile mounting frame 1, a device positioning assembly 2 and a centering and positioning mechanism 3, and a hoisting connector 4 for connecting a valve stem 71, an inner valve cover 81 and an upper valve cover 82 to an external hoisting device; The device positioning assembly 2 is installed on the mobile mounting frame 1, and the device positioning assembly 2 includes a positioning drive module 21, a positioning module 22 and a supporting positioning module 23; two groups of positioning modules 22 for holding the valve seat 6 are installed on the mobile mounting frame 1, and a positioning drive module 21 for driving the two groups of positioning modules 22 is installed on the mobile mounting frame 1; and a supporting positioning module 23 is installed on the mobile mounting frame 1; A centering and alignment mechanism 3 for positioning and lowering the valve stem 71, the inner valve cover 81 and the upper valve cover 82 is installed on the upper side of the mobile mounting frame 1, and the centering and alignment mechanism 3 includes a mobile module 31, a centering assembly 32 and an alignment module 33; the mobile module 31 is installed on the mobile mounting frame 1, the mobile end of the mobile module 31 is installed with the centering assembly 32, and the mobile end of the mobile module 31 is installed with the alignment module 33.

[0024] In this embodiment, when the large-scale valve high-efficiency assembly device is working normally, before using the device, the valve stem 71 and the valve core 72 have been assembled and fixed, and the external lifting equipment is connected to the valve stem 71, the inner valve cover 81 and the upper valve cover 82 respectively through the lifting connector 4; the lifting equipment drives the mobile mounting frame 1, the positioning drive module 21, the positioning module 22, the supporting positioning module 23, the moving module 31, the centering component 32 and the alignment module 33 to move, so that the positioning module 22 is aligned with the middle of the valve seat 6, and the supporting positioning module 23 is aligned with the two ends of the valve seat 6; the mobile mounting frame 1 is initially positioned by supporting the supporting positioning module 23 at the two ends of the valve seat 6; then the positioning drive module 21 is operated to drive the positioning module 22 to move, and the positioning module 22 is used to hold the middle of the valve seat 6, so that the center of the positioning module 22 is aligned with the center of the valve seat 6, and the secondary positioning of the mobile mounting frame 1 is completed; so that the mobile mounting frame 1 is in the standard position, and the center of the centering component 32 on the mobile mounting frame 1 coincides with the center of the valve seat 6; The external hoisting equipment drives the valve stem 71 to move to the upper side of the valve seat 6 through the hoisting connector 4, and the valve core 72 is located at the lower side of the valve stem 71; the moving module 31 is operated to drive the centering component 32 and the alignment module 33 to move, so that the centering component 32 moves through the lower side of the valve core 72 and moves to the middle of the valve stem 71; the centering component 32 is operated to clamp the valve stem 71, so that the center of the valve stem 71 coincides with the centering component 32, and then the center of the valve stem 71 and the valve core 72 are aligned with the center of the valve seat 6; the alignment module 33 is operated to push the valve core 72; the valve core 72 is located at the standard position, and the alignment groove 721 is aligned with the alignment block 61; the positioning of the valve stem 71 and the valve core 72 is completed; The external lifting equipment drives the valve stem 71 and the valve core 72 to move vertically downward under the limiting action of the centering component 32 and the alignment module 33. At the same time, the moving module 31 drives the centering component 32 and the alignment module 33 to move vertically downward synchronously. The valve stem 71 and the valve core 72 are positioned by the centering component 32 and the alignment module 33, so that the centers of the valve stem 71 and the valve core 72 are aligned with the center of the valve seat 6, and the alignment groove 721 is aligned with the alignment block 61, so that the valve stem 71 and the valve core 72 are accurately moved into the valve seat 6, and the alignment block 61 is inserted into the alignment groove 721; thereby, the valve stem 71 and the valve core 72 are assembled into the valve seat 6; after the assembly is completed, the lifting connector 4 is no longer connected to the valve stem 71; The external lifting equipment drives the inner valve cover 81 to move to the upper side of the valve seat 6 through the lifting connector 4, and the moving module 31 drives the centering assembly 32 to move vertically upward. The inner valve cover 81 is positioned through the centering assembly 32 so that the center of the inner valve cover 81 coincides with the center of the valve seat 6. At this time, the center of the inner valve cover 81 is aligned with the valve stem 71; the external lifting equipment drives the inner valve cover 81 to move vertically downward, and at the same time, the moving module 31 drives the centering assembly 32 to move vertically downward, completing the assembly of the inner valve cover 81; Subsequently, after the operator assembles the remaining structural parts of the valve, the external lifting equipment drives the upper valve cover 82 to move to the upper side of the valve seat 6 through the lifting connector 4, and the moving module 31 drives the centering assembly 32 to move vertically upward, and the upper valve cover 82 is positioned through the centering assembly 32 so that the center of the upper valve cover 82 coincides with the center of the valve seat 6. At this time, the center of the upper valve cover 82 is aligned with the valve stem 71; the external lifting equipment drives the upper valve cover 82 to move vertically downward, and at the same time, the moving module 31 drives the centering assembly 32 to move vertically downward, completing the assembly of the upper valve cover 82.

[0025] Thus, the positioning of the mobile mounting frame 1 and the mobile module 31, the centering assembly 32 and the alignment module 33 on the mobile mounting frame 1 are completed through the cooperation of the positioning drive module 21, the positioning module 22 and the supporting positioning module 23; then the valve stem 71, the valve core 72, the inner valve cover 81 and the upper valve cover 82 are positioned through the centering assembly 32; before the valve stem 71, the valve core 72, the inner valve cover 81 and the upper valve cover 82 are hoisted to the upper side of the valve seat 6 for assembly, the centers of the valve stem 71, the valve core 72, the inner valve cover 81 and the upper valve cover 82 are quickly aligned with the valve seat 6, and the alignment groove 721 on the valve core 72 is aligned with the alignment block 61 in the valve seat 6 through the alignment module 33, so that the assembly is more accurate and efficient; in the assembly process of large valves, the components are quickly positioned to ensure the assembly accuracy and efficiency of large valves.

[0026] Embodiment 2: In some embodiments, as a preferred embodiment of the present invention, as Figure 1-Figure 3 , Figure 8 and Fig. 9 As shown, the positioning drive module 21 includes a positioning motor 211, a positioning threaded rod 212, a moving block 213 and a limiting slider 214. The positioning motor 211 is fixedly mounted on the mobile mounting frame 1, the positioning threaded rod 212 is rotatably mounted on the mobile mounting frame 1, and the output end of the positioning motor 211 is fixedly connected to the positioning threaded rod 212; the moving block 213 is threadedly connected to the positioning threaded rod 212 through a threaded sleeve; the limiting slider 214 is symmetrically fixedly mounted on the moving block 213; the limiting slide grooves 215 are symmetrically provided on the mobile mounting frame 1; the limiting slider 214 is limitedly slidably connected to the limiting slide groove 215; The positioning module 22 includes two groups of synchronous rotation modules, a mobile positioning block 224 and a fixed positioning block 225. The synchronous rotation modules are symmetrically mounted on the mobile mounting frame 1. The synchronous rotation modules are connected to the mobile block 213. The mobile positioning block 224 is fixedly mounted on the synchronous rotation modules; the fixed positioning block 225 is fixedly mounted on the mobile mounting frame 1; the inner sides of the two mobile positioning blocks 224 and the fixed positioning block 225 are located on the same circumference; The synchronous rotation module includes a connecting frame 221, a connecting shaft 222 and a rotating arm 223. One end of the connecting frame 221 is rotatably connected to the moving block 213, and the other end of the connecting frame 221 is rotatably connected to one end of the rotating arm 223. The connecting shaft 222 is fixedly mounted on the moving mounting frame 1, and the connecting shaft 222 is rotatably connected to the middle part of the rotating arm 223. The other end of the rotating arm 223 is fixedly mounted with a moving positioning block 224. The support and positioning module 23 includes a conformable positioning frame 231 and rollers 232. The conformable positioning frame 231 is fixedly installed on the lower side of the mobile mounting frame 1, and the rollers 232 are evenly installed on the lower side of the conformable positioning frame 231 in a circular array with equal intervals and rotated uniformly.

[0027] like Figure 1-Figure 11 As shown, the mobile module 31 includes a support frame 311, a mobile drive module and a guide module. The support frame 311 is fixedly mounted on the mobile mounting frame 1; the mobile drive module is mounted on the support frame 311, and the guide module for guiding the mobile end of the mobile drive module is mounted on the support frame 311; The mobile driving module includes a mobile motor 312, a mobile threaded rod 313 and a mobile frame 314. The mobile motor 312 is fixedly mounted on the support frame 311, and the mobile threaded rod 313 is rotatably mounted on the support frame 311; the output end of the mobile motor 312 is fixedly connected to the mobile threaded rod 313; the mobile frame 314 is threadedly connected to the mobile threaded rod 313 through a threaded sleeve; The guide module includes a centering slider 315 and a guide rail 316. The centering sliders 315 are symmetrically fixedly installed on both sides of the mobile frame 314; the guide rail 316 is symmetrically fixedly installed on the support frame 311, and the centering slider 315 is limitedly slidably connected with the guide rail 316; The centering assembly 32 includes a synchronous drive module and a centering module. The synchronous drive module is mounted on the mobile frame 314. A plurality of groups of centering modules are evenly mounted on the synchronous drive module in a circular array with equal spacing. The synchronous drive module includes a fixed ring frame 321, a rotating ring frame 322, an incomplete gear 323, a driving gear 324 and a centering motor 325. The fixed ring frame 321 is fixedly mounted on the mobile frame 314, the rotating ring frame 322 is rotatably mounted on the outside of the fixed ring frame 321, and the incomplete gear 323 is fixedly mounted on the rotating ring frame 322; the driving gear 324 is rotatably mounted on the mobile frame 314, and the incomplete gear 323 is meshed and connected with the driving gear 324; the centering motor 325 is fixedly mounted on the lower side of the mobile frame 314; the output end of the centering motor 325 is fixedly connected with the driving gear 324; The centering module includes a limiting sleeve 326, a synchronous frame 327, a centering roller 328 and an extension roller 329. The limiting sleeve 326 is rotatably mounted on the rotating ring frame 322; the middle part of the synchronous frame 327 is rotatably mounted on the fixed ring frame 321, and the outer side of the synchronous frame 327 is connected to the limiting sleeve 326 in a limited sliding manner; the inner end of the synchronous frame 327 is rotatably mounted with a centering roller 328; the lower side of the inner end of the synchronous frame 327 is rotatably mounted with an extension roller 329; the extension roller 329 is aligned with the centering roller 328; The alignment module 33 includes an alignment cylinder 331 and an alignment plate 332 . The alignment cylinder 331 is fixedly mounted on the moving frame 314 , and the alignment plate 332 is fixedly mounted on the output end of the alignment cylinder 331 .

[0028] like Figure 5-Figure 7 As shown, the hoisting connector 4 includes a valve stem connector 41 for connecting the valve stem 71 to an external hoisting device and a valve cover connector 42 for connecting the inner valve cover 81 and the upper valve cover 82 to an external hoisting device; The valve stem connecting member 41 comprises a threaded sleeve 411, a connecting suspension rod 412, a rotating disk 413 and a valve stem suspension disk 414. The threaded sleeve 411 is threadedly connected to the valve stem 71, and the connecting suspension rod 412 is symmetrically arranged on the threaded sleeve 411; one end of the connecting suspension rod 412 is fixedly connected to the threaded sleeve 411, and the other end of the connecting suspension rod 412 is fixedly connected to the rotating disk 413, and the rotating disk 413 is rotatably mounted on the valve stem suspension disk 414; the valve stem suspension disk 414 is connected to an external lifting device; The valve cover connector 42 includes a connecting rod 421, a limit block 422 and a valve cover hanging plate 423, and the valve cover hanging plate 423 is connected to an external hanging device; the connecting rods 421 are symmetrically inserted on both sides of the valve cover hanging plate 423; the limit block 422 is fixedly installed on the upper end of the connecting rod 421; the lower side of the connecting rod 421 is provided with an external thread that is threadedly connected to the connecting hole 91.

[0029] The support frame 311 is symmetrically fixed with lifting ears for connecting with external lifting equipment.

[0030] In this embodiment, the external lifting device is connected to the valve stem hanging plate 414, and the threaded sleeve 411 is threadedly connected to the valve stem 71, so that the external lifting device is connected to the valve stem 71 through the valve stem hanging plate 414, the rotating plate 413, the connecting hanging rod 412 and the threaded sleeve 411; the external lifting device is connected to the valve cover hanging plate 423, and the connecting rod 421 on the valve cover hanging plate 423 is threadedly connected to the connecting hole 91, so that the external lifting device is connected to the inner valve cover 81 and the upper valve cover 82 through the valve cover hanging plate 423, the limit block 422 and the connecting rod 421; The external lifting equipment drives the device to move through the lifting ears on the support frame 311, so that the movable positioning block 224 and the fixed positioning block 225 move to the upper side of the middle of the valve seat 6, so that the conformal positioning frame 231 and the roller 232 are aligned to the two ends of the valve seat 6; the external lifting equipment drives the device to gradually move downward, so that the roller 232 is supported on the two ends of the valve seat 6, and the preliminary positioning is performed through the conformal positioning frames 231 and the rollers 232 on both sides; then the positioning motor 211 drives the positioning threaded rod 212 to rotate, and the positioning threaded rod 212 drives the moving block 213 to move horizontally under the limiting action of the limiting slider 214 and the limiting slide groove 215, and the moving block 213 moves through the connecting frame 221 to drive the rotating arm 223 to rotate; the rotating arm 223 rotates to drive the movable positioning block 224 to move, until the movable positioning blocks 224 on both sides cooperate with the fixed positioning block 225 to hold the middle of the valve seat 6; thereby performing secondary positioning; at this time, the center of the fixed ring frame 321 on the movable mounting frame 1 coincides with the center of the valve seat 6; The external hoisting equipment drives the valve stem 71 and the valve core 72 to move to the upper side of the valve seat 6 through the valve stem hanging plate 414, the rotating plate 413, the connecting hanging rod 412 and the threaded sleeve 411; the moving motor 312 is operated to drive the moving threaded rod 313 to rotate, and the rotation of the moving threaded rod 313 drives the moving frame 314 to move vertically under the limiting action of the centering slider 315 and the guide rail 316; thereby, the fixed ring frame 321, the rotating ring frame 322, the synchronous frame 327 and the centering roller 328 are driven to move vertically upward through the moving frame 314; until the fixed ring frame 321 passes through the lower side of the valve core 72 and moves to the middle of the valve stem 71; at this time, the centering motor 325 drives the driving gear 324 to rotate , the driving gear 324 rotates through the incomplete gear 323 to drive the rotating ring frame 322 to rotate; the rotating ring frame 322 rotates synchronously to drive the limit sleeve 326 to move, and the limit sleeve 326 drives the synchronous frame 327 to rotate synchronously, thereby driving the centering roller 328 and the extension roller 329 to rotate synchronously until all the centering rollers 328 hold the valve stem 71 tightly; at this time, the center of the valve stem 71 and the valve core 72 coincides with the center of the valve seat 6; the alignment cylinder 331 drives the alignment plate 332 to move, and the alignment plate 332 pushes the side of the valve core 72 to rotate the valve core 72; until the alignment groove 721 on the valve core 72 is aligned with the alignment block 61; the positioning of the valve stem 71 and the valve core 72 is completed; The external lifting equipment drives the valve stem 71 and the valve core 72 to move vertically downward, and at the same time, the moving motor 312 drives the moving frame 314 to move vertically downward through the moving threaded rod 313 until the alignment block 61 is inserted into the alignment groove 721; the assembly of the valve stem 71 and the valve core 72 is completed; after the assembly is completed, the threaded sleeve 411, the connecting suspension rod 412 and the rotating disk 413 are rotated until the threaded sleeve 411 is separated from the valve stem 71; the external lifting equipment drives the threaded sleeve 411, the connecting suspension rod 412, the rotating disk 413 and the valve stem suspension disk 414 to leave the upper side of the valve seat 6; the centering motor 325 drives the rotating ring frame 322 to rotate through the driving gear 324 and the incomplete gear 323, so that the synchronous frame 327 and the centering roller 328 are reset; The external lifting equipment drives the inner valve cover 81 to move to the upper side of the valve seat 6, and the moving motor 312 drives the moving frame 314 to move upward by moving the threaded rod 313 until the extension roller 329 is aligned with the inner valve cover 81; the centering motor 325 drives the rotating ring frame 322 to rotate by driving the gear 324 and the incomplete gear 323, thereby driving the synchronous frame 327 to rotate through the limiting sleeve 326, until the centering roller 328 and the extension roller 329 clamp the inner valve cover 81, so that the center of the inner valve cover 81 is aligned with the center of the valve seat 6; then the external lifting equipment drives the inner valve cover 81 to move vertically downward, and at the same time, the moving motor 312 drives the moving frame 314 and the fixed ring frame 321, the rotating ring frame 322, the limiting sleeve 326, the synchronous frame 327, the centering roller 328 and the extension roller 329 on the moving frame 314 to move vertically downward by moving the threaded rod 313; until the assembly of the inner valve cover 81 is completed; After the operator assembles the remaining structural parts of the valve, the external lifting equipment drives the upper valve cover 82 to move to the upper side of the valve seat 6, and the moving motor 312 drives the moving frame 314 to move upward by moving the threaded rod 313 until the extension roller 329 is aligned with the upper valve cover 82; the centering motor 325 drives the rotating ring frame 322 to rotate by driving the gear 324 and the incomplete gear 323, thereby driving the synchronous frame 327 to rotate through the limiting sleeve 326 until the centering roller 328 and the extension roller 329 clamp the upper valve cover 82, so that the center of the upper valve cover 82 is aligned with the center of the valve seat 6; then the external lifting equipment drives the upper valve cover 82 to move vertically downward, and at the same time, the moving motor 312 drives the moving frame 314 and the fixed ring frame 321, the rotating ring frame 322, the limiting sleeve 326, the synchronous frame 327, the centering roller 328 and the extension roller 329 on the moving frame 314 to move vertically downward by moving the threaded rod 313; until the assembly of the upper valve cover 82 is completed.

[0031] Embodiment 3: In some embodiments, Figure 1-Figure 11 As shown, as a preferred embodiment of the present invention, a method for using a large valve efficient assembly device comprises the following steps: Step 1: The external lifting device is connected to the valve stem hanging plate 414, and the threaded sleeve 411 is threadedly connected to the valve stem 71, so that the external lifting device is connected to the valve stem 71 through the valve stem hanging plate 414, the rotating plate 413, the connecting hanging rod 412 and the threaded sleeve 411; the external lifting device is connected to the valve cover hanging plate 423, and the connecting rod 421 on the valve cover hanging plate 423 is threadedly connected to the connecting hole 91, so that the external lifting device is connected to the inner valve cover 81 and the upper valve cover 82 through the valve cover hanging plate 423, the limit block 422 and the connecting rod 421; the external lifting device drives the device to move through the lifting ears on the support frame 311, so that the movable positioning block 224 and the fixed positioning block 225 move to the upper side of the middle part of the valve seat 6, so that the conformal positioning frame 231 and the roller 232 are aligned To both ends of the valve seat 6; the external lifting equipment drives the device to move downward gradually, so that the rollers 232 are supported on both ends of the valve seat 6, and the preliminary positioning is performed through the conformal positioning frames 231 and rollers 232 on both sides; then the positioning motor 211 drives the positioning threaded rod 212 to rotate, and the positioning threaded rod 212 drives the moving block 213 to move horizontally under the limiting action of the limiting slider 214 and the limiting slide groove 215, and the moving block 213 moves through the connecting frame 221 to drive the rotating arm 223 to rotate; the rotating arm 223 rotates to drive the moving positioning block 224 to move, until the moving positioning blocks 224 on both sides cooperate with the fixed positioning block 225 to hold the middle part of the valve seat 6; thereby performing secondary positioning; at this time, the center of the fixed ring frame 321 on the mobile mounting frame 1 coincides with the center of the valve seat 6; Step 2: The external hoisting equipment drives the valve stem 71 and the valve core 72 to move to the upper side of the valve seat 6 through the valve stem hanging plate 414, the rotating plate 413, the connecting hanging rod 412 and the threaded sleeve 411; the moving motor 312 is operated to drive the moving threaded rod 313 to rotate, and the rotation of the moving threaded rod 313 drives the moving frame 314 to move vertically under the limiting action of the centering slider 315 and the guide rail 316; thereby, the fixed ring frame 321, the rotating ring frame 322, the synchronous frame 327 and the centering roller 328 are driven vertically upward by the moving frame 314; until the fixed ring frame 321 passes through the lower side of the valve core 72 and moves to the middle of the valve stem 71; at this time, the centering motor 325 drives the driving gear 324 The driving gear 324 rotates and drives the rotating ring frame 322 to rotate through the incomplete gear 323; the rotating ring frame 322 rotates and synchronously drives the limit sleeve 326 to move, and the limit sleeve 326 drives the synchronous frame 327 to rotate synchronously, thereby driving the centering roller 328 and the extension roller 329 to rotate synchronously until all the centering rollers 328 hold the valve stem 71 tightly; at this time, the center of the valve stem 71 and the valve core 72 coincides with the center of the valve seat 6; the alignment cylinder 331 drives the alignment plate 332 to move, and the alignment plate 332 pushes the side of the valve core 72 to rotate the valve core 72; until the alignment groove 721 on the valve core 72 is aligned with the alignment block 61; the positioning of the valve stem 71 and the valve core 72 is completed; Step 3: The external lifting equipment drives the valve stem 71 and the valve core 72 to move vertically downward, and at the same time, the moving motor 312 drives the moving frame 314 to move vertically downward through the moving threaded rod 313 until the alignment block 61 is inserted into the alignment groove 721; the assembly of the valve stem 71 and the valve core 72 is completed; after the assembly is completed, the threaded sleeve 411, the connecting suspension rod 412 and the rotating disk 413 are rotated until the threaded sleeve 411 is separated from the valve stem 71; the external lifting equipment drives the threaded sleeve 411, the connecting suspension rod 412, the rotating disk 413 and the valve stem suspension disk 414 to leave the upper side of the valve seat 6; the centering motor 325 drives the rotating ring frame 322 to rotate through the driving gear 324 and the incomplete gear 323, so that the synchronous frame 327 and the centering roller 328 are reset; Step 4: The external lifting equipment drives the inner valve cover 81 to move to the upper side of the valve seat 6, and the moving motor 312 drives the moving frame 314 to move upward by moving the threaded rod 313 until the extension roller 329 is aligned with the inner valve cover 81; the centering motor 325 drives the rotating ring frame 322 to rotate through the driving gear 324 and the incomplete gear 323, thereby driving the synchronous frame 327 to rotate through the limiting sleeve 326, until the centering roller 328 and the extension roller 329 clamp the inner valve cover 81, so that the center of the inner valve cover 81 is aligned with the center of the valve seat 6; then the external lifting equipment drives the inner valve cover 81 to move vertically downward, and at the same time, the moving motor 312 drives the moving frame 314 and the fixed ring frame 321, the rotating ring frame 322, the limiting sleeve 326, the synchronous frame 327, the centering roller 328 and the extension roller 329 on the moving frame 314 to move vertically downward by moving the threaded rod 313; until the assembly of the inner valve cover 81 is completed; Step 5: After the operator assembles the remaining structural parts of the valve, the external lifting equipment drives the upper valve cover 82 to move to the upper side of the valve seat 6, and the moving motor 312 drives the moving frame 314 to move upward by moving the threaded rod 313 until the extension roller 329 is aligned with the upper valve cover 82; the centering motor 325 drives the rotating ring frame 322 to rotate through the driving gear 324 and the incomplete gear 323, thereby driving the synchronous frame 327 to rotate through the limiting sleeve 326 until the centering roller 328 and the extension roller 329 clamp the upper valve cover 82, so that the center of the upper valve cover 82 is aligned with the center of the valve seat 6; then the external lifting equipment drives the upper valve cover 82 to move vertically downward, and at the same time, the moving motor 312 drives the moving frame 314 and the fixed ring frame 321, the rotating ring frame 322, the limiting sleeve 326, the synchronous frame 327, the centering roller 328 and the extension roller 329 on the moving frame 314 to move vertically downward by moving the threaded rod 313; until the assembly of the upper valve cover 82 is completed.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large-scale valve high-efficiency assembly device, comprising a movable mounting frame (1), a device positioning component (2) and a centering and positioning mechanism (3), characterized in that: Also included is a lifting connector (4) for connecting the valve stem (71), the inner valve cover (81) and the upper valve cover (82) to an external lifting device; The device positioning assembly (2) is mounted on the mobile mounting frame (1), and the device positioning assembly (2) comprises a positioning drive module (21), a positioning module (22) and a supporting positioning module (23); two groups of positioning modules (22) for holding the valve seat (6) are mounted on the mobile mounting frame (1), and a positioning drive module (21) for driving the two groups of positioning modules (22) is mounted on the mobile mounting frame (1); and a supporting positioning module (23) is mounted on the mobile mounting frame (1); A centering and positioning mechanism (3) for positioning and lowering the valve stem (71), the inner valve cover (81) and the upper valve cover (82) is installed on the upper side of the mobile mounting frame (1), and the centering and positioning mechanism (3) comprises a mobile module (31), a centering assembly (32) and an alignment module (33); the mobile module (31) is installed on the mobile mounting frame (1), the mobile end of the mobile module (31) is installed with the centering assembly (32), and the mobile end of the mobile module (31) is installed with the alignment module (33).

2. The large valve high-efficiency assembly device according to claim 1 is characterized in that: The positioning drive module (21) comprises a positioning motor (211), a positioning threaded rod (212), a moving block (213) and a limiting slide block (214); the positioning motor (211) is fixedly mounted on the moving mounting frame (1); the positioning threaded rod (212) is rotatably mounted on the moving mounting frame (1); the output end of the positioning motor (211) is fixedly connected to the positioning threaded rod (212); the moving block (213) is threadedly connected to the positioning threaded rod (212) via a threaded sleeve; the limiting slide block (214) is symmetrically fixedly mounted on the moving block (213); the limiting slide grooves (215) are symmetrically provided on the moving mounting frame (1); and the limiting slide block (214) is limitedly slidably connected to the limiting slide groove (215).

3. The large valve high-efficiency assembly device according to claim 2 is characterized in that: The positioning module (22) comprises two groups of synchronous rotation modules, a movable positioning block (224) and a fixed positioning block (225); the synchronous rotation modules are symmetrically mounted on the movable mounting frame (1); the synchronous rotation modules are connected to the movable blocks (213); the movable positioning block (224) is fixedly mounted on the synchronous rotation modules; the fixed positioning block (225) is fixedly mounted on the movable mounting frame (1); and the inner sides of the two movable positioning blocks (224) and the fixed positioning block (225) are located on the same circumference.

4. The large valve high-efficiency assembly device according to claim 3 is characterized in that: The synchronous rotation module comprises a connecting frame (221), a connecting shaft (222) and a rotating arm (223); one end of the connecting frame (221) is rotationally connected to the moving block (213), and the other end of the connecting frame (221) is rotationally connected to one end of the rotating arm (223); the connecting shaft (222) is fixedly mounted on the moving mounting frame (1), the connecting shaft (222) is rotationally connected to the middle part of the rotating arm (223), and the other end of the rotating arm (223) is fixedly mounted with a moving positioning block (224).

5. The large valve efficient assembly device according to claim 4 is characterized in that: The support positioning module (23) comprises a conformable positioning frame (231) and rollers (232); the conformable positioning frame (231) is fixedly mounted on the lower side of the mobile mounting frame (1); and the rollers (232) are evenly mounted in a circular array at equal intervals on the lower side of the conformable positioning frame (231) for rotation.

6. The large valve high-efficiency assembly device according to claim 5 is characterized in that: The mobile module (31) comprises a support frame (311), a mobile drive module and a guide module; the support frame (311) is fixedly mounted on the mobile mounting frame (1); the mobile drive module is mounted on the support frame (311); and the guide module for guiding the mobile end of the mobile drive module is mounted on the support frame (311).

7. The large valve efficient assembly device according to claim 6, characterized in that: The mobile drive module comprises a mobile motor (312), a mobile threaded rod (313) and a mobile frame (314); the mobile motor (312) is fixedly mounted on the support frame (311); the mobile threaded rod (313) is rotatably mounted on the support frame (311); the output end of the mobile motor (312) is fixedly connected to the mobile threaded rod (313); and the mobile frame (314) is threadedly connected to the mobile threaded rod (313) via a threaded sleeve.

8. The large valve efficient assembly device according to claim 7, characterized in that: The centering assembly (32) comprises a synchronous drive module and a centering module, the synchronous drive module is mounted on the moving frame (314), and a plurality of sets of centering modules are evenly mounted on the synchronous drive module in a circular array at equal intervals.

9. The large valve efficient assembly device according to claim 8, characterized in that: The synchronous drive module comprises a fixed ring frame (321), a rotating ring frame (322), an incomplete gear (323), a driving gear (324) and a centering motor (325); the fixed ring frame (321) is fixedly mounted on the moving frame (314); the rotating ring frame (322) is rotatably mounted on the outside of the fixed ring frame (321); the incomplete gear (323) is fixedly mounted on the rotating ring frame (322); the driving gear (324) is rotatably mounted on the moving frame (314); the incomplete gear (323) is meshedly connected with the driving gear (324); the centering motor (325) is fixedly mounted on the lower side of the moving frame (314); and the output end of the centering motor (325) is fixedly connected with the driving gear (324).

10. A method of use, using the large valve efficient assembly device according to claim 9, characterized in that: The following steps are involved: Step 1: The lifting equipment drives the device to move so that the supporting positioning module (23) is supported on both ends of the valve seat (6); the positioning drive module (21) drives the positioning module (22) to hold the middle of the valve seat (6) so that the center of the positioning module (22) is aligned with the center of the valve seat (6); Step 2: The lifting device drives the valve stem (71) to move to the upper side of the valve seat (6) via the lifting connection piece (4); the moving module (31) drives the centering component (32) to move to the middle of the valve stem (71); the centering component (32) clamps the valve stem (71); the alignment module (33) pushes the valve core (72) so that the alignment groove (721) is aligned with the alignment block (61); Step 3: The lifting equipment drives the valve stem (71) and the valve core (72) to move vertically downward under the limiting action of the centering component (32) and the alignment module (33), and at the same time, the moving module (31) drives the centering component (32) and the alignment module (33) to move vertically downward synchronously, so as to assemble the valve stem (71) and the valve core (72) into the valve seat (6); Step 4: The lifting equipment drives the inner valve cover (81) to move to the upper side of the valve seat (6), the moving module (31) drives the centering assembly (32) to move upward, and the centering assembly (32) positions the inner valve cover (81); the lifting equipment drives the inner valve cover (81) to move downward, and the assembly of the inner valve cover (81) is completed; Step 5: After the operator assembles the remaining structural parts of the valve, the lifting equipment drives the upper valve cover (82) to move to the upper side of the valve seat (6), the moving module (31) drives the centering assembly (32) to move upward, and the centering assembly (32) positions the upper valve cover (82); the lifting equipment drives the upper valve cover (82) to move downward, and the assembly of the upper valve cover (82) is completed.

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