Turbine shell integrated casting structure

Abstract

The invention discloses a turbine shell integrated casting structure, and particularly relates to the technical field of casting modeling, the turbine shell integrated casting structure comprises a chute column, a connecting block, an electric cylinder, a sleeving bracket and a multi-station synchronous sand mold forming mechanism; the multi-station synchronous sand mold forming mechanism comprises a transmission screw, a gear motor, a sleeving block, a guide sleeve frame, a plurality of hinge blocks, a connecting shaft, two hinge sleeve rods, a linkage shaft, a sleeving sliding block and a supporting frame, and further comprises a multi-station synchronous sand mold butt joint mechanism and a synchronous guide butt joint assembly. Through the multi-station synchronous sand mold forming mechanism, the multi-station synchronous sand mold forming mechanism has the advantages that synchronous sand mold forming operation can be achieved on a plurality of forming sand materials and a plurality of filling sand materials, casting molding can be rapidly achieved on a plurality of turbine shells, and the casting molding efficiency of the turbine shells is greatly improved; therefore, the problem that the efficiency is greatly reduced when the turbine shell is cast and molded due to the fact that the turbine shell is difficult to cast and mold quickly is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of casting and molding, and more particularly to an integrated casting structure of a turbine casing. Background Art

[0002] The integrated casting structure of the turbine casing can easily meet the production needs of castings of various shapes and sizes. The turbine casing often has a complex geometry and internal structure. Sand casting can accurately produce a sand mold that is consistent with the shape of the turbine casing, thereby ensuring the accuracy of the casting in shape and size.

[0003] Among the existing published technical documents, the Chinese patent announcement number CN111889622A discloses a method for casting a compressor casing. This technology divides each cross runner into two branch runners, each branch runner is connected to the inner gate; and a T-shaped slag collecting runner is set at the cross runner branch point. The problems of hot node shrinkage compensation and casting defects caused by pouring are solved by reasonably designing the riser, subsidy, chiller and pouring system. The solid mold combined with the core assembly molding method is adopted to solve the problems of serious casting size deviation and high mold cost caused by the complex structure of the casting. However, this technology has the following problems.

[0004] During the integrated casting process of the turbine casing, the turbine casing needs to be placed in the molding sand for compaction, so that the molding sand will produce the specified shape of the turbine casing, and the sand mold is closed and molten iron is poured into it to realize the molding operation. However, each turbine casing needs to be placed in the sand mold for molding, and the front and back sides need to be operated one by one. It is difficult to realize the synchronous sand molding operation of multiple turbine casings, and it is difficult to synchronously close the molds of multiple sand molds, and it is difficult to quickly perform turbine casing casting, resulting in a significant decrease in the efficiency of the turbine casing during casting. For this reason, an integrated turbine casing casting structure is required. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: an integrated casting structure of a turbine casing, comprising a slide column, a connecting block and an electric cylinder, the connecting block is fixed at the top of the slide column, the electric cylinder is fixed at the top of the connecting block, the outer wall of the output end of the electric cylinder is slidably connected with a sleeve bracket, the sleeve bracket and the electric cylinder are fixedly connected, and a multi-station synchronous sand mold forming mechanism is installed inside the slide column; the multi-station synchronous sand mold forming mechanism includes a transmission screw rotatably installed inside the slide column, a reduction motor is fixedly installed on the top of the transmission screw, and the reduction motor is fixedly connected to the slide column, the outer wall of the transmission screw is threadedly connected with a sleeve block, and one side of the sleeve block is fixedly connected with a guide sleeve.

[0006] The upper surface of the guide sleeve is fixedly connected with a plurality of hinge blocks, the inner wall of each hinge block is fixedly connected with a connecting shaft, the outer wall of the connecting shaft is rotatably connected with two hinge sleeve rods, the inner wall of the hinge sleeve rod is rotatably connected with a linkage shaft at a position away from the connecting shaft; one end of each linkage shaft is fixedly connected with a sleeve slider, one side of the sleeve slider is fixedly connected with a support frame, one side of the support frame is fixedly installed with a housing outer mold, and the other side of the support frame is provided with a housing inner mold, and the housing inner mold is fixedly connected with another support frame; one side of the housing outer mold is provided with a multi-station synchronous sand mold docking mechanism. The sleeve block and the guide sleeve are both slidably connected with the slide column, and the outer wall of the slide column and the inner wall of the sleeve block are both smooth surfaces. There is a gap between the two hinge sleeve rods, and the plurality of hinge blocks are arranged in a circular ring with equal spacing. A controller is fixedly installed on one side of the sleeve bracket, and a mounting plate is welded at the bottom end of the sleeve bracket; the mounting plate is used to support the sleeve bracket. A guide column is installed on the inner wall of the sleeve sliding block, and the two sleeve sliding blocks are slidably connected to the guide column; one end of the guide column is fixedly connected to a guide frame, and one end of the guide frame is installed with a fixed sleeve, and multiple guide frames are fixedly connected to the fixed sleeve, and the fixed sleeve is fixedly connected to the slide groove column.

[0007] When this technology is in use, the reduction motor can drive the transmission screw to rotate forward, the sleeve block will drive the guide sleeve to slide up along the outer wall of the slide column, multiple hinge blocks will drive multiple connecting shafts to move up synchronously, the hinge sleeve rod will drive the linkage shaft to move left, and another hinge sleeve rod will drive another linkage shaft to move right. The linkage shaft drives the sleeve slider to move left, and the support frame drives the outer mold of the casing to move left, so that the outer mold of the casing can be extruded on the filled sand material to form a sand mold outer trough body. At the same time, another support frame drives the inner mold of the casing to move right, and the inner mold of the casing is inserted into the molding sand material inside the fixed sand mold frame. The transmission screw is driven to reverse by the reduction motor, and the sleeve block drives the guide sleeve frame to move downward. The hinge block makes the bottom ends of the two hinged sleeve rods move downward, the linkage shaft drives the sleeve slider to move right, the support frame drives the outer mold of the casing to move right, and the other support frame drives the inner mold of the casing to move left. In this way, the outer mold of the casing and the inner mold of the casing are close to each other, the output end of the electric cylinder moves downward along the inner wall of the sleeve bracket, the connecting block drives the slide column to move downward, the fixed sleeve frame drives multiple guide frames to move downward synchronously, the guide column drives two sleeve sliders to move downward, and the two sleeve sliders respectively drive two support frames to move downward synchronously.

[0008] Preferably, the multi-station synchronous sand mold docking mechanism includes a movable sand mold frame arranged on one side of the mold outside the casing; one side of one of the movable sand mold frames is fixedly connected to a sand mold positioning block, one side of the sand mold positioning block is provided with a sensing support block, the sensing support block is fixedly connected to the mold inside the casing, one side of the sensing support block is provided with a distance sensor, one side of the distance sensor is fixedly connected to a fixed sand mold frame, and the inner wall of the fixed sand mold frame is provided with molding sand material. The inner wall of the movable sand mold frame is provided with filling sand material, and two connecting tubes are inserted in the filling sand material, and the two connecting tubes are slidably connected to the movable sand mold frame; a sleeve is fixedly installed on the top of the inner wall of the sleeve bracket, and a support frame is fixedly installed on one side of the outer wall of the sleeve, and a locking screw is rotatably connected to the inner wall of the support frame, and a locking motor is fixedly installed on the top of the support frame, and the output end of the locking motor is fixedly connected to the locking screw, and the outer wall of the locking screw is threadedly connected with a threaded sleeve block, and the threaded sleeve block is slidably connected to the support frame; an articulated sleeve frame is fixedly installed on one side of the threaded sleeve block, and the sleeve and the support frame are both slidably connected to the articulated sleeve frame.

[0009] The outer wall of the articulated sleeve is fixedly connected with a plurality of pull shafts; the outer wall of each pull shaft is rotatably connected with a sleeve pull rod, the inner wall of the sleeve pull rod is rotatably connected with a hinge shaft at a position away from the pull shaft, and one end of the hinge shaft is fixedly connected with a hinge pull block; the top of the hinge pull block is provided with a synchronous guide docking assembly. The locking motor is used to drive the locking screw to rotate, and the outer wall of the threaded sleeve block and the inner wall of the support frame are both smooth surfaces. The plurality of pull shafts are arranged in a circular ring with equal spacing, and the center point of the pull shaft is higher than the center point of the hinge shaft; the vertical cross-section shape of the pull shaft and the hinge shaft is circular.

[0010] When this technology is used, the sleeve bracket supports the sleeve, and the support frame can provide support for the locking motor. The locking screw drives the threaded sleeve block to move upward under the action of the thread transmission force, and the articulated sleeve frame slides up along the outer wall of the sleeve, and the articulated sleeve frame drives multiple pull shafts to move upward synchronously, and the bottom end of the sleeve pull rod drives the articulated shaft to move closer to the fixed sand mold frame, so that multiple articulated shafts can operate simultaneously.

[0011] Preferably, the synchronous guide docking assembly includes a positioning slot block fixedly arranged at the top of the hinged pull block; a plug-in block is plugged into the top of the positioning slot block, the plug-in block is fixedly connected to the movable sand mold frame, a guide rod is slidably connected to the inner wall of the positioning slot block, a support frame plate is fixedly installed at one end of the guide rod, the support frame plate is fixedly connected to the sleeve; a docking plug-in block is plugged into the top of the support frame plate and away from the plug-in block, the docking plug-in block is fixedly connected to the fixed sand mold frame. The positioning slot block is slidably connected to the support frame plate, and the inner wall of the support frame plate and the outer wall of the positioning slot block are both smooth surfaces.

[0012] When this technology is in use, the articulated pull block drives the positioning slot block to approach the fixed sand mold frame, and the positioning slot block moves toward the fixed sand mold frame along the inner wall of the support frame plate, and at the same time, the positioning slot block drives the plug-in block to approach the fixed sand mold frame, and the plug-in block drives the movable sand mold frame to approach the fixed sand mold frame, and the plug-in block supports the fixed sand mold frame. When the distance value sensed by the distance sensor is zero, the locking motor is turned off by the controller.

[0013] Technical effects and advantages of the present invention: 1. The present invention uses a multi-station synchronous sand mold forming mechanism, and the reduction motor can drive the transmission screw to rotate forward, the sleeve block will drive the guide sleeve to slide along the outer wall of the slide groove column, and the multiple hinge blocks respectively drive the multiple connecting shafts to move up synchronously, and the distance between the two linkage shafts becomes larger, so that the outer mold of the casing can be extruded on the filled sand material to form a sand mold outer groove body, that is, a sand mold inner groove body can be formed in the molding sand material, and the transmission screw is driven by the reduction motor to reverse, the outer mold of the casing and the inner mold of the casing are close to each other, and the output end of the electric cylinder moves down along the inner wall of the sleeve bracket, and the outer mold of the casing and the inner mold of the casing are no longer located in the gap between the movable sand mold frame and the fixed sand mold frame, so that the synchronous sand mold forming operation can be realized for multiple molding sand materials and multiple filling sand materials, and the casting molding of multiple turbine casings can be realized quickly, which greatly improves the efficiency of turbine casing casting molding.

[0014] 2. The present invention adopts a multi-station synchronous sand mold docking mechanism, which drives the locking screw to rotate through a locking motor, and the threaded sleeve drives the articulated sleeve frame to move upward. The articulated sleeve frame slides up along the outer wall of the sleeve, and the bottom end of the sleeve pull rod drives the articulated shaft to approach the fixed sand mold frame. Multiple articulated shafts are operated simultaneously, which can enable multiple movable sand mold frames to be synchronously molded and docked with multiple fixed sand mold frames respectively, thereby greatly improving the efficiency of turbine casing casting.

[0015] 3. The present invention utilizes a synchronous guiding docking assembly, the articulated pull block drives the positioning slot block to approach the fixed sand mold frame, the positioning slot block approaches the fixed sand mold frame along the inner wall of the supporting frame plate, the positioning slot block drives the plug-in block to approach the fixed sand mold frame, the plug-in block drives the movable sand mold frame to approach the fixed sand mold frame, the movable sand mold frame drives the sand mold positioning block to approach the distance sensor, when the distance value sensed by the distance sensor is zero, the locking motor is closed through the controller, and multiple movable sand mold frames can be guided and docked with multiple fixed sand mold frames one by one, respectively, to achieve synchronous, efficient and precise docking, thereby greatly improving the efficiency of turbine casing casting.

[0016] According to the mutual influence of the above-mentioned multiple effects, firstly, the interiors of multiple casing outer molds are formed into sand mold outer trough bodies, and multiple molding sand materials also form sand mold inner trough bodies. Secondly, multiple movable sand mold frames can be synchronously molded and docked with multiple fixed sand mold frames respectively. Finally, multiple movable sand mold frames can be guided and docked with multiple fixed sand mold frames respectively. In summary, synchronous sand molding operations can be realized for multiple molding sand materials and multiple filling sand materials, and rapid molding and closing can be realized for multiple fixed sand mold frames and multiple movable sand mold frames, and multiple turbine casings can be quickly cast, which greatly improves the efficiency of turbine casing casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the integrated casting structure of the turbine casing of the present invention.

[0018] Figure 2 It is a schematic diagram of the partial structure of the connection between the connection block and the slide column of the present invention.

[0019] Figure 3 It is a schematic diagram of the vertical cross-section structure of the integrated casting structure of the turbine casing of the present invention.

[0020] Figure 4 It is a schematic diagram of the local structure of the vertical section of the connection between the guide frame and the fixed sleeve frame of the present invention.

[0021] Figure 5 It is a schematic diagram of the local structure of the vertical section of the connection between the sleeve sliding block and the guide frame of the present invention.

[0022] Figure 6 It is a schematic diagram of the partial structure of the main view of the connection between the movable sand mold frame and the sand mold positioning block of the present invention.

[0023] Figure 7 It is a schematic side view of the integrated casting structure of the turbine casing of the present invention.

[0024] Figure 8 It is a schematic diagram of the partial structure of the connection between the sleeve bracket and the sleeve of the present invention.

[0025] Fig. 9 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0026] Fig.10 It is a schematic diagram of the local structure of the split plug-in block and the positioning slot block of the present invention.

[0027] The accompanying drawings are marked as follows: 1, slide column; 2, connecting block; 3, electric cylinder; 4, sleeve bracket; 5, transmission screw; 6, reduction motor; 7, sleeve block; 8, guide sleeve frame; 9, hinge block; 10, connecting shaft; 11, hinge sleeve rod; 12, linkage shaft; 13, sleeve slider; 14, support frame; 15, outer mold of casing; 16, inner mold of casing; 17, controller; 18, mounting plate; 19, guide column; 20, guide frame; 21, fixed sleeve frame; 22, movable sand mold frame; 23, sand Sand mold positioning block; 24, induction support block; 25, distance sensor; 26, fixed sand mold frame; 27, molding sand; 28, filling sand; 29, connecting pipe; 30, sleeve; 31, support frame; 32, locking screw; 33, locking motor; 34, threaded sleeve; 35, articulated sleeve; 36, pull shaft; 37, sleeve pull rod; 38, articulated shaft; 39, articulated pull block; 40, positioning slot block; 41, plug-in block; 42, guide rod; 43, docking plug block; 44, support frame plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0029] As attached Figure 1 - Attachment Fig.10 An integrated casting structure of a turbine casing is shown, and the integrated casting structure of the turbine casing is provided with a multi-station synchronous sand mold forming mechanism, a multi-station synchronous sand mold docking mechanism, and a synchronous guide docking assembly. The arrangement of each mechanism and assembly can realize synchronous sand mold forming operation for multiple molding sand materials 27 and multiple filling sand materials 28, and can realize rapid molding and closing of multiple fixed sand mold frames 26 and multiple movable sand mold frames 22, and can realize casting molding of multiple turbine casings quickly, greatly improving the efficiency of turbine casing casting molding. The specific structural arrangement of each mechanism and assembly is as follows.

[0030] In this embodiment, as shown in the attached Figure 1 - Attachment Figure 4As shown, the connection block 2 is fixed at the top of the chute column 1, the electric cylinder 3 is fixed at the top of the connection block 2, the outer wall of the output end of the electric cylinder 3 is slidably connected with a sleeve bracket 4, the sleeve bracket 4 and the electric cylinder 3 are fixedly connected, and a multi-station synchronous sand mold forming mechanism is installed inside the chute column 1. The multi-station synchronous sand mold forming mechanism includes a transmission screw 5 rotatably installed inside the chute column 1, a reduction motor 6 is fixedly installed at the top of the transmission screw 5, and the reduction motor 6 is fixedly connected to the chute column 1, the outer wall of the transmission screw 5 is threadedly connected with a sleeve block 7, and one side of the sleeve block 7 is fixedly connected with a guide sleeve frame 8.

[0031] A plurality of hinge blocks 9 are fixedly connected to the upper surface of the guide sleeve frame 8, and a connecting shaft 10 is fixedly connected to the inner wall of each hinge block 9, and two hinge sleeve rods 11 are rotatably connected to the outer wall of the connecting shaft 10, and a linkage shaft 12 is rotatably connected to the inner wall of the hinge sleeve rod 11 and away from the connecting shaft 10; one end of each linkage shaft 12 is fixedly connected to a sleeve slider 13, and one side of the sleeve slider 13 is fixedly connected to a support frame 14, one side of the support frame 14 is fixedly installed with a casing outer mold 15, and the other side of the support frame 14 is provided with a casing inner mold 16, and the casing inner mold 16 is fixedly connected to another support frame 14; one side of the casing outer mold 15 is provided with a multi-station synchronous sand mold docking mechanism.

[0032] In this embodiment, as shown in the attached Figure 1 - Attachment Figure 4 As shown, a controller 17 is fixedly installed on one side of the sleeve bracket 4, and a mounting plate 18 is welded to the bottom end of the sleeve bracket 4; the mounting plate 18 is used to support the sleeve bracket 4, so that the mounting plate 18 can be fixed on the base by expansion bolts first, and the sleeve bracket 4 is supported by the mounting plate 18, and the sleeve bracket 4 can provide support force for the controller 17.

[0033] A guide column 19 is installed on the inner wall of the sleeve slider 13, and the two sleeve sliders 13 are slidably connected to the guide column 19; a guide frame 20 is fixedly connected to one end of the guide column 19, and a fixed sleeve 21 is installed at one end of the guide frame 20, and multiple guide frames 20 are fixedly connected to the fixed sleeve 21, and the fixed sleeve 21 is fixedly connected to the slide column 1, so that the slide column 1 can make the fixed sleeve 21 move downward, and the fixed sleeve 21 drives multiple guide frames 20 to move downward synchronously, the guide frame 20 drives the guide column 19 to move downward, and the guide column 19 drives the two sleeve sliders 13 to move downward.

[0034] In this embodiment, as shown in the attached Figure 4 - Attachment Fig. 9As shown, the multi-station synchronous sand mold docking mechanism includes a movable sand mold frame 22 arranged on one side of the outer mold 15 of the casing; one side of one of the movable sand mold frames 22 is fixedly connected with a sand mold positioning block 23, one side of the sand mold positioning block 23 is provided with a sensing support block 24, the sensing support block 24 is fixedly connected to the inner mold 16 of the casing, one side of the sensing support block 24 is provided with a distance sensor 25, one side of the distance sensor 25 is fixedly connected with a fixed sand mold frame 26, and the inner wall of the fixed sand mold frame 26 is provided with molding sand material 27. The inner wall of the movable sand mold frame 22 is provided with a filling sand material 28, and two connecting pipes 29 are inserted into the filling sand material 28, and the two connecting pipes 29 are slidably connected to the movable sand mold frame 22; a sleeve 30 is fixedly installed on the top of the inner wall of the sleeve bracket 4, and a support frame 31 is fixedly installed on one side of the outer wall of the sleeve 30, and a locking screw 32 is rotatably connected to the inner wall of the support frame 31, and a locking motor 33 is fixedly installed on the top of the support frame 31, and the output end of the locking motor 33 is fixedly connected to the locking screw 32, and the outer wall of the locking screw 32 is threadedly connected to a threaded sleeve block 34, and the threaded sleeve block 34 is slidably connected to the support frame 31; a hinged sleeve frame 35 is fixedly installed on one side of the threaded sleeve block 34.

[0035] The sleeve 30 and the support frame 31 are both slidably connected to the articulated sleeve frame 35. The outer wall of the articulated sleeve frame 35 is fixedly connected with a plurality of pull shafts 36. The outer wall of each pull shaft 36 is rotatably connected with a sleeve pull rod 37. The inner wall of the sleeve pull rod 37 is rotatably connected with a hinge shaft 38 at a position away from the pull shaft 36, and one end of the hinge shaft 38 is fixedly connected with a hinge pull block 39. The top of the hinge pull block 39 is provided with a synchronous guide docking assembly. The locking motor 33 is used to drive the locking screw 32 to rotate. The outer wall of the threaded sleeve block 34 and the inner wall of the support frame 31 are both smooth surfaces. The plurality of pull shafts 36 are arranged in a circular ring with equal spacing. The center point of the pull shaft 36 is higher than the center point of the hinge shaft 38. The vertical cross-section shape of the pull shaft 36 and the hinge shaft 38 is circular.

[0036] In this embodiment, as shown in the attached Fig. 9 - Attachment Fig.10 As shown, the synchronous guide docking assembly includes a positioning groove block 40 fixedly arranged at the top of the hinged pull block 39; a plug-in block 41 is plugged into the top of the positioning groove block 40, and the plug-in block 41 is fixedly connected to the movable sand mold frame 22. A guide rod 42 is slidably connected to the inner wall of the positioning groove block 40, and a support frame plate 44 is fixedly installed at one end of the guide rod 42, and the support frame plate 44 is fixedly connected to the sleeve 30. A docking plug-in block 43 is plugged into the top of the support frame plate 44 and away from the plug-in block 41, and the docking plug-in block 43 is fixedly connected to the fixed sand mold frame 26. The positioning groove block 40 is slidably connected to the support frame plate 44, and the inner wall of the support frame plate 44 and the outer wall of the positioning groove block 40 are both smooth surfaces.

[0037] The working principle of the turbine casing integrated casting structure of the present invention is as follows: Step 1: When installing and using, first use the expansion bolts to fix the mounting plate 18 on the base, support the sleeve bracket 4 through the mounting plate 18, and the sleeve bracket 4 supports the electric cylinder 3 to increase the stability of the electric cylinder 3. Then scrape and level the filling sand material 28 inside the movable sand mold frame 22, and at the same time scrape and level the molding sand material 27 inside the fixed sand mold frame 26. Then use the crane to lift the movable sand mold frame 22, and insert the plug-in block 41 on the side of the movable sand mold frame 22 into the positioning groove block 40. At the same time, after lifting the fixed sand mold frame 26, the fixed sand mold frame 26 drives the docking plug-in block 43 to be plugged into the inner wall of the support frame plate 44, so that multiple fixed sand mold frames 26 are installed, and multiple movable sand mold frames 22 are installed.

[0038] Step 2: During multi-station synchronous sand mold forming, the controller 17 is used to start the reduction motor 6, which can drive the transmission screw 5 to rotate in the forward direction. The transmission screw 5 drives the sleeve block 7 to move upward under the action of the thread transmission force, and the sleeve block 7 drives the guide sleeve frame 8 to slide along the outer wall of the slide column 1, and the guide sleeve frame 8 drives multiple hinge blocks 9 to move upward synchronously. Multiple hinge blocks 9 respectively drive multiple connecting shafts 10 to move upward synchronously, and the connecting shaft 10 makes the bottom ends of the two hinge sleeve rods 11 move upward, and the hinge sleeve rod 11 drives the linkage shaft 12 to move left, and another hinge sleeve rod 11 drives another linkage shaft 12 to move right. In this way, the distance between two adjacent linkage shafts 12 becomes larger.

[0039] At the same time, the linkage shaft 12 drives the sleeve slide 13 to move leftward, the sleeve slide 13 drives the support frame 14 to move leftward, and the support frame 14 drives the outer mold 15 of the casing to move leftward, so that the outer mold 15 of the casing can be squeezed into the filling sand material 28 on the inner wall of the movable sand mold frame 22. That is, the outer mold 15 of the casing is extruded on the filling sand material 28 to form a sand mold outer tank body, and at the same time, the outer mold 15 of the casing drives the two connecting pipes 29 to be squeezed and moved leftward. At the same time, another support frame 14 drives the inner mold 16 of the casing to move rightward, and the inner mold 16 of the casing is inserted into the molding sand material 27 inside the fixed sand mold frame 26, so that the inner tank body of the sand mold is formed in the molding sand material 27.

[0040] The inductive support block 24 is driven to move rightward by the mold 16 in the casing, and the inductive support block 24 approaches the distance sensor 25 . When the distance sensed by the distance sensor 25 is the distance value set by the controller 17 , the reduction motor 6 is turned off by the distance sensor 25 .

[0041] Then, the transmission screw 5 is driven to reverse by the reduction motor 6, and the transmission screw 5 drives the sleeve block 7 to move downward under the action of the thread transmission force, and the sleeve block 7 drives the guide sleeve frame 8 to move downward, and the guide sleeve frame 8 drives the hinge block 9 to move downward, and the hinge block 9 makes the bottom ends of the two hinge sleeve rods 11 move downward, and the hinge sleeve rod 11 drives the linkage shaft 12 to move right, and the other linkage shaft 12 moves left. The linkage shaft 12 drives the sleeve slider 13 to move right, the sleeve slider 13 drives the support frame 14 to move right, the support frame 14 drives the outer mold 15 of the casing to move right, and the other support frame 14 drives the inner mold 16 of the casing to move left, so that the outer mold 15 of the casing and the inner mold 16 of the casing are close to each other, and the controller 17 turns off the reduction motor 6.

[0042] The electric cylinder 3 is started by the controller 17, and the output end of the electric cylinder 3 moves down along the inner wall of the sleeve bracket 4, and the output end of the electric cylinder 3 drives the connection block 2 to move down, and the connection block 2 drives the slide column 1 to move down, and the slide column 1 makes the fixed sleeve frame 21 move down, and the fixed sleeve frame 21 drives multiple guide frames 20 to move down synchronously, and the guide frame 20 drives the guide column 19 to move down, and the guide column 19 drives the two sleeve slide blocks 13 to move down, and the two sleeve slide blocks 13 respectively drive the two support frames 14 to move down synchronously, and the support frame 14 drives the outer mold 15 of the casing to move down, and the other support frame 14 drives the inner mold 16 of the casing to move down. In this way, the outer mold 15 of the casing and the inner mold 16 of the casing are no longer located in the gap between the movable sand mold frame 22 and the fixed sand mold frame 26, and the electric cylinder 3 is closed by the controller 17. At the same time, the scraper is used to scrape the right surface of the movable sand mold frame 22, and the scraper is used to scrape the left surface of the fixed sand mold frame 26.

[0043] Step 3, when the multi-station synchronous sand mold docking mechanism is in operation, the locking motor 33 is started by the controller 17, and the sleeve bracket 4 supports the sleeve 30, the sleeve 30 supports the support frame 31, and the support frame 31 can provide support force for the locking motor 33. The locking motor 33 drives the locking screw 32 to rotate, the locking screw 32 drives the threaded sleeve block 34 to move upward under the action of the thread transmission force, and the threaded sleeve block 34 drives the articulated sleeve frame 35 to move upward, the articulated sleeve frame 35 slides upward along the outer wall of the sleeve 30, and at the same time, the articulated sleeve frame 35 drives multiple pull shafts 36 to move upward synchronously, the pull shaft 36 drives the top end of the sleeve pull rod 37 to move upward, and the bottom end of the sleeve pull rod 37 drives the articulated shaft 38 to approach the fixed sand mold frame 26, and the articulated shaft 38 drives the articulated pull block 39 to approach the fixed sand mold frame 26, so that multiple articulated shafts 38 are simultaneously linked.

[0044] Step 4, during synchronous guide docking, when the hinged pull block 39 drives the positioning slot block 40 to approach the fixed sand mold frame 26, the positioning slot block 40 approaches the fixed sand mold frame 26 along the inner wall of the support frame plate 44, and the positioning slot block 40 approaches the fixed sand mold frame 26 along the outer wall of the guide rod 42. At the same time, the positioning slot block 40 drives the plug-in block 41 to approach the fixed sand mold frame 26, the plug-in block 41 drives the movable sand mold frame 22 to approach the fixed sand mold frame 26, and the support frame plate 44 supports the docking plug-in block 43, and the docking plug-in block 43 supports the fixed sand mold frame 26. In this way, the movable sand mold frame 22 drives the sand mold positioning block 23 to approach the distance sensor 25, and the distance sensing is performed by the distance sensor 25. When the distance value sensed by the distance sensor 25 is zero, the locking motor 33 is turned off by the controller 17, so that multiple movable sand mold frames 22 can be respectively engaged with multiple fixed sand mold frames 26 one by one.

[0045] Step 5. During casting, molten iron is poured into the connecting pipe 29 inside the movable sand mold frame 22, and the connecting pipe 29 is filled into the turbine casing groove formed between the filling sand material 28 and the molding sand material 27. At the same time, another connecting pipe 29 inside the movable sand mold frame 22 can perform exhaust operation, and can synchronously and quickly perform integrated sand casting operation on multiple turbine casings.

[0046] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated casting structure of a turbine casing, comprising a slide column (1), a connecting block (2) and an electric cylinder (3), wherein the connecting block (2) is fixed to the top of the slide column (1), the electric cylinder (3) is fixed to the top of the connecting block (2), a sleeve bracket (4) is slidably connected to the outer wall of the output end of the electric cylinder (3), and the sleeve bracket (4) is fixedly connected to the electric cylinder (3), characterized in that: A multi-station synchronous sand mold forming mechanism is installed inside the chute column (1); The multi-station synchronous sand mold forming mechanism comprises a transmission screw (5) rotatably mounted inside a chute column (1), a reduction motor (6) being fixedly mounted on the top of the transmission screw (5), and the reduction motor (6) and the chute column (1) being fixedly connected, a sleeve block (7) being threadedly connected to the outer wall of the transmission screw (5), and a guide sleeve frame (8) being fixedly connected to one side of the sleeve block (7); The upper surface of the guide sleeve (8) is fixedly connected to a plurality of hinge blocks (9), the inner wall of each hinge block (9) is fixedly connected to a connecting shaft (10), the outer wall of the connecting shaft (10) is rotatably connected to two hinge sleeve rods (11), and the inner wall of the hinge sleeve rod (11) is rotatably connected to a linkage shaft (12) at a position away from the connecting shaft (10); One end of each linkage shaft (12) is fixedly connected to a sleeve slider (13), one side of the sleeve slider (13) is fixedly connected to a support frame (14), one side of the support frame (14) is fixedly mounted with a housing outer mold (15), and the other side of the support frame (14) is provided with a housing inner mold (16), and the housing inner mold (16) is fixedly connected to another support frame (14); A multi-station synchronous sand mold docking mechanism is provided on one side of the casing outer mold (15).

2. The turbine casing integrated casting structure according to claim 1, characterized in that: The sleeve block (7) and the guide sleeve frame (8) are both slidably connected to the slide column (1), and the outer wall of the slide column (1) and the inner wall of the sleeve block (7) are both smooth surfaces.

3. The turbine casing integrated casting structure according to claim 1, characterized in that: A gap is provided between the two hinge sleeves (11), and the plurality of hinge blocks (9) are arranged and distributed equidistantly in a circular ring.

4. The turbine casing integrated casting structure according to claim 1, characterized in that: A controller (17) is fixedly mounted on one side of the sleeve bracket (4), and a mounting plate (18) is welded to the bottom end of the sleeve bracket (4); The mounting plate (18) is used to support the sleeve bracket (4).

5. The turbine casing integrated casting structure according to claim 1, characterized in that: A guide column (19) is installed on the inner wall of the sleeve sliding block (13), and the two sleeve sliding blocks (13) are both slidably connected to the guide column (19); One end of the guide column (19) is fixedly connected to a guide frame (20), one end of the guide frame (20) is mounted with a fixed sleeve (21), a plurality of guide frames (20) are fixedly connected to the fixed sleeve (21), and the fixed sleeve (21) is fixedly connected to the slide column (1).

6. The turbine casing integrated casting structure according to claim 1, characterized in that: The multi-station synchronous sand mold docking mechanism comprises a movable sand mold frame (22) arranged on one side of the casing outer mold (15); A sand mold positioning block (23) is fixedly connected to one side of one of the movable sand mold frames (22); a sensing support block (24) is provided on one side of the sand mold positioning block (23); the sensing support block (24) is fixedly connected to the mold (16) inside the casing; a distance sensor (25) is provided on one side of the sensing support block (24); a fixed sand mold frame (26) is fixedly connected to one side of the distance sensor (25); and a molding sand material (27) is provided on the inner wall of the fixed sand mold frame (26); The inner wall of the movable sand mold frame (22) is provided with filling sand material (28), and two connecting pipes (29) are inserted into the interior of the filling sand material (28), and the two connecting pipes (29) are both slidably connected to the movable sand mold frame (22); A sleeve (30) is fixedly mounted on the top of the inner wall of the sleeve bracket (4); a support frame (31) is fixedly mounted on one side of the outer wall of the sleeve (30); a locking screw (32) is rotatably connected to the inner wall of the support frame (31); a locking motor (33) is fixedly mounted on the top of the support frame (31); an output end of the locking motor (33) is fixedly connected to the locking screw (32); a threaded sleeve block (34) is threadedly connected to the outer wall of the locking screw (32); and the threaded sleeve block (34) is slidably connected to the support frame (31); A hinged sleeve frame (35) is fixedly mounted on one side of the threaded sleeve block (34); the sleeve (30) and the support frame (31) are both slidably connected to the hinged sleeve frame (35); and a plurality of pull shafts (36) are fixedly connected to the outer wall of the hinged sleeve frame (35); The outer wall of each pull shaft (36) is rotatably connected to a sleeve pull rod (37), the inner wall of the sleeve pull rod (37) is rotatably connected to a hinge shaft (38) at a position away from the pull shaft (36), and one end of the hinge shaft (38) is fixedly connected to a hinge pull block (39); A synchronous guide docking assembly is provided at the top end of the hinged pull block (39).

7. The turbine casing integrated casting structure according to claim 6, characterized in that: The locking motor (33) is used to drive the locking screw (32) to rotate, and the outer wall of the threaded sleeve (34) and the inner wall of the support frame (31) are both smooth surfaces.

8. The turbine casing integrated casting structure according to claim 6, characterized in that: The plurality of pull shafts (36) are arranged in a circular ring at equal intervals, and the center point of the pull shaft (36) is higher than the center point of the hinge shaft (38); The vertical cross-section of the pulling shaft (36) and the hinge shaft (38) is circular.

9. The turbine casing integrated casting structure according to claim 6, characterized in that: The synchronous guide docking assembly comprises a positioning slot block (40) fixedly arranged on the top end of the hinged pull block (39); A plug-in block (41) is plugged into the top end of the positioning groove block (40), the plug-in block (41) is fixedly connected to the movable sand mold frame (22), a guide rod (42) is slidably connected to the inner wall of the positioning groove block (40), a support frame plate (44) is fixedly mounted on one end of the guide rod (42), and the support frame plate (44) is fixedly connected to the sleeve (30); A docking plug block (43) is plugged into the top end of the support frame plate (44) and at a position away from the plug block (41), and the docking plug block (43) is fixedly connected to the fixed sand mold frame (26).

10. The turbine casing integrated casting structure according to claim 9, characterized in that: The positioning groove block (40) is slidably connected to the support frame plate (44), and the inner wall of the support frame plate (44) and the outer wall of the positioning groove block (40) are both smooth surfaces.

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