Turbocharger impeller housing disassembling and assembling system and method

Abstract

The invention relates to the technical field of turbochargers, in particular to a turbocharger impeller housing disassembling and assembling system and method.The turbocharger impeller housing disassembling and assembling system comprises a disassembling and assembling platform, and an execution and feedback module, an information processing and monitoring module and a disassembling and assembling assembly are arranged on the disassembling and assembling platform; the dismounting and mounting assembly comprises a bottom plate, a supporting body, a lifting ring screw rod and a rotating component, the bottom plate is arranged at a fixed coordinate point of the dismounting and mounting platform through the execution and feedback module, then the gas compressor shell is hoisted to the position above the bottom plate, the supporting body is fixedly connected with the gas compressor shell through a fixing bolt, and then the rotating component is installed on the lifting ring screw rod; and finally, the lifting ring screw rod penetrates through a center hole of the supporting body, the bottom plate is in threaded connection with the lifting ring screw rod, the rotating component is rotated to drive the lifting ring screw rod and the bottom plate to ascend to eject out the impeller housing, part damage caused by a traditional knocking mode is avoided, assembly precision is guaranteed, meanwhile, follow-up lifting and transferring are facilitated, and operation safety and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of turbocharger technology, and in particular to a turbocharger impeller housing disassembly and assembly system and method. Background Technology

[0002] A turbocharger is a key device that uses the energy of exhaust gas to provide compressed air to an engine, increasing the intake air volume and improving engine performance. The impeller casing is one of the important components of the turbocharger that bears pressure and facilitates flow. It works in conjunction with the compressor impeller, compressor housing, and diffuser to protect and guide the fluid. The clearance between the impeller casing and the compressor impeller has a significant impact on the compressor efficiency.

[0003] In the prior art, small turbochargers, due to their light weight and small size, often adopt an integrated design of the compressor housing and impeller casing. For large turbochargers, due to their large weight and size, and limitations in casting, machining, and assembly conditions, a split design is often adopted. The tolerance level of the mating surfaces of the impeller casing and compressor housing is relatively high, and O-rings are provided to assist in sealing.

[0004] In existing technology, once the impeller casing is assembled into the compressor housing, it is difficult to remove for maintenance and replacement. Firstly, manually hammering it out with a copper rod can easily damage the impeller casing structure and mating surfaces; secondly, improper assembly with excessive clearance during assembly can significantly reduce turbocharger performance. Thirdly, due to the large weight of the large turbocharger impeller casing and the inability to install lifting holes on its end face (which is the gas flow area), even if the impeller casing is hammered out of the compressor housing, it is inconvenient for lifting and transport, posing a significant safety hazard. Summary of the Invention

[0005] The purpose of this invention is to provide a turbocharger impeller housing disassembly and assembly system and method, which solves the problems of difficult disassembly and assembly of large turbocharger impeller housings, easy damage to components, difficulty in ensuring assembly accuracy, and potential safety hazards in the prior art.

[0006] To achieve the above objectives, the present invention provides a turbocharger impeller housing disassembly and assembly system, including a disassembly and assembly platform, wherein the disassembly and assembly platform is provided with an execution and feedback module, an information processing and monitoring module, and disassembly and assembly components; The disassembly and assembly assembly includes a base plate, a support body, a lifting eye screw, and a rotating component. The base plate is located on one side of the disassembly and assembly platform. The support body is provided with fixing bolts and is connected to the compressor housing through the fixing bolts. The rotating component is rotatably mounted on the support body. The lifting eye screw is threadedly connected to the base plate and the rotating component, and passes through the support body.

[0007] The base plate includes a first plate and a second plate. The first plate is threadedly connected to the eye bolt and is sleeved on the eye bolt. The second plate is threadedly connected to the eye bolt and is sleeved on the eye bolt.

[0008] The rotating component includes a thrust ball bearing, a special nut, a fastening screw, and a mounting component. The special nut is threadedly connected to the eye bolt and is fitted onto the eye bolt. The fastening screw is connected to the special nut. The thrust ball bearing is connected to the special nut via the fastening screw. The mounting component is used to press the special nut and the thrust ball bearing onto the support body.

[0009] The mounting component includes a clamping ring and a clamping screw. The clamping ring is connected to the support body, and the clamping screw passes through the clamping ring and is threadedly connected to the support body.

[0010] The rotating component further includes a locking nut, which is threadedly connected to the eye screw and sleeved on the eye screw.

[0011] The lifting eye screw has an ejector thread and a reverse thread. The ejector thread is threadedly connected to the special nut and the locking nut, respectively. The reverse thread is threadedly connected to the first plate and the second plate, respectively. The stroke of the ejector thread is greater than 1.5 times the distance from the end face of the impeller casing flow channel to the end face of the threaded hole in the compressor casing.

[0012] The first plate has a slot, which is located on the side of the first plate near the second plate; a pad is provided on the side of the second plate near the first plate.

[0013] On the other hand, the present invention also includes a method for disassembling and assembling a turbocharger impeller cover, comprising the following steps: By scanning the work area with LiDAR and vision cameras, the system identifies component dimensions, threaded hole positions, and environmental risks. It then combines weight data to match a 3D model and automatically selects suitable disassembly and assembly tools to generate a safe and optimal disassembly and assembly plan. Place the base plate on the assembly / disassembly platform according to the planned position; hoist the compressor housing to be operated and place it stably above the base plate; fasten the support body to the corresponding threaded hole on the end face of the compressor housing through the fixing bolts on its extension plate. Install a lock nut, a special nut, and a thrust ball bearing sequentially on the eye bolt; pass the eye bolt through the central through hole of the support body, so that the reverse thread at its bottom connects with the threaded hole in the base plate; use a clamping ring and clamping screw to axially clamp and fix the special nut and thrust ball bearing assembly to the support body; The drive arm rotates a specially designed nut, converting the rotational motion into the axial linear motion of the eye screw, thereby pushing out or pressing into the impeller casing; After disassembly, loosen the fixing bolts, tighten the lock nut to lock it with the special nut, and lift and transfer the impeller cover through the lifting eye at the top of the lifting eye screw; During assembly, replace the support body with one of appropriate length and perform the pressing operation in reverse order.

[0014] This invention discloses a turbocharger impeller housing disassembly and assembly system and method. In use, based on the size of the housing to be disassembled, a disassembly and assembly component of corresponding size is selected. The execution and feedback module places the base plate at a fixed coordinate point on the disassembly and assembly platform. Then, the compressor housing is hoisted above the base plate, and the support body is fixedly connected to the compressor housing using fixing bolts. Subsequently, the rotating component is installed on the lifting eye screw. Finally, the lifting eye screw is passed through the center hole of the support body, and the base plate is threadedly connected to the lifting eye screw. Rotating the rotating component, due to its threaded connection to the lifting eye screw, drives the lifting eye screw and the base plate to rise, pushing out the compressor housing. This avoids component damage caused by traditional hammering methods, ensures assembly accuracy, and facilitates subsequent hoisting and transportation, improving operational safety and efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of the turbocharger impeller cover disassembly and assembly system of the present invention.

[0017] Figure 2 This is a structural schematic diagram of the disassembly and assembly components of the present invention.

[0018] Figure 3 This is a schematic diagram of the installation structure of the support body of the present invention.

[0019] Figure 4 This is the invention Figure 3 Enlarged view of point A.

[0020] Figure 5 and Figure 6 This is a schematic diagram of the disassembly and assembly of the impeller cover of the present invention.

[0021] Figure 7 This is a flowchart of the turbocharger impeller cover disassembly and assembly method of the present invention.

[0022] Figure 8 This is a logical schematic diagram of the turbocharger impeller cover disassembly and assembly method of the present invention.

[0023] In the diagram: 101-Disassembly / Assembly Platform, 102-Execution and Feedback Module, 103-Information Processing and Monitoring Module, 104-Disassembly / Assembly Component, 105-Base Plate, 106-Support Body, 107-Lifting Eye Screw, 108-Rotating Component, 109-First Plate, 110-Second Plate, 111-Thrust Ball Bearing, 112-Special Nut, 113-Fastening Screw, 114-Mounting Component, 115-Pressure Ring, 116-Pressure Screw, 117-Locking Nut, 118-Ejection Thread, 119-Reverse Thread, 120-Slot, 121-Pan Block, 122-Extension Plate, 123-Fixing Bolt. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0025] First embodiment: Please see Figures 1 to 6 ,in Figure 1 This is a schematic diagram of the overall structure of the turbocharger impeller cover assembly and disassembly system. Figure 2 This is a structural diagram of the disassembled and assembled components. Figure 3 This is a schematic diagram of the installation structure of the support. Figure 4 yes Figure 3 Enlarged view of point A, Figure 5 and Figure 6 This is a schematic diagram of the disassembly and assembly of the impeller cover of the present invention.

[0026] This invention provides a system and method for disassembling and assembling a turbocharger impeller casing 125, including a disassembly and assembly platform 101. The disassembly and assembly platform 101 is equipped with an execution and feedback module 102, an information processing and monitoring module 103, and a disassembly and assembly component 104. The disassembly and assembly component 104 includes a base plate 105, a support body 106, a lifting eye screw 107, and a rotating component 108. The base plate 105 includes a first plate body 109 and a second plate body 110. The rotating component 108 includes a thrust ball bearing 111, a special nut 112, a fastening screw 113, and an installation component 114. By driving the lifting eye screw 107 axially through the rotating component 108, the base plate 105 can be driven to smoothly push out or press in the impeller casing 125. It can be understood that the above solution can be used to avoid damage to the structure and mating surfaces of the impeller casing 125 during disassembly and assembly, and can also be used to facilitate the hoisting of the impeller casing 125.

[0027] In this specific embodiment, the disassembly / assembly platform 101 is equipped with an execution and feedback module 102, an information processing and monitoring module 103, and a disassembly / assembly component 104; the base plate 105 is disposed on one side of the disassembly / assembly platform 101; the support body 106 is provided with fixing bolts 123, and the support body 106 is connected to the compressor housing 124 through the fixing bolts 123; the rotating component 108 is rotatably disposed on the support body 106; the lifting eye screw 107 is threadedly connected to the base plate 105 and to the rotating component 108, and passes through the support body 106; the disassembly / assembly platform 101 consists of a base, a support column, and a gravity sensor; the gravity sensor is disposed on the base to support the system and to identify the weight of the housing and feed it back to the central processor; the execution... The feedback module 102 includes a robotic arm, with an RGB-D structured light high-precision vision camera deployed at the end effector of the robotic arm to support object recognition and millimeter-level depth measurement. Force sensors are deployed at both the joints of the robotic arm and the end effector to collect data such as axial force, radial force, and torque during the disassembly and assembly process in real time and transmit it to the information processing and monitoring mechanism via wired means. The information processing and monitoring module 103 consists of a MEMS galvanometer semi-solid-state lidar, a central processor, and an interaction unit. It is used to receive work instructions, verify equipment status, scan and identify risks in the work area, send execution instructions and process feedback signals, and perform self-learning and optimization. Based on the shell contour and size, the position and number of threaded holes, and the shell weight, it calls the three-dimensional model database and matches the disassembly and assembly tool model according to the tool-shell correspondence table.

[0028] Taking the ejector housing 125 of a certain model as an example, if the torque applied to the special nut 112 of the ejector tool exceeds the threshold (120 N·m), the system will automatically switch to pulse force application mode to avoid scratching of the housing and damage to the bolts. If the torque suddenly increases (greater than 200 N·m), the machine will stop immediately and an abnormality will be indicated.

[0029] After receiving the disassembly and assembly command from the remote monitoring, the information processing and monitoring module 103 uses data from the MEMS galvanometer semi-solid-state lidar, RGB-D structured light high-precision vision camera and gravity sensor to call the three-dimensional model database to determine the housing specifications based on parameters such as housing size, threaded hole position and number, and housing weight, and matches the disassembly and assembly component 104 of appropriate size according to the tool-housing correspondence table.

[0030] Before disassembly and assembly begin, LiDAR and vision cameras scan the work area, generating a "distance-coordinate" point cloud using triangulation and phase difference calculations. After point cloud stitching and denoising, a 3D environment model is generated by the central processor. Obstacles (such as pipelines and buildings), personnel, and other risk points are automatically marked through feature extraction (geometric, positional, and material features) and threshold determination (geometric and distance thresholds). The system automatically evaluates the situation from multiple dimensions—perception (vision, torque, etc.), decision-making (path, disassembly strategy, etc.), execution (robotic arm wear and deviation status), and safety—using target detection and segmentation, path planning, and reinforcement learning algorithms to select the most stable, shortest, and lowest-energy-consumption disassembly and assembly solution. By defining the DH parameters (such as length a, offset d, joint angle θ, torsion angle α, etc.) between each link of the robotic arm, a homogeneous transformation matrix from the base to the end effector of the robotic arm is established. The RGB-D vision sensor and inverse kinematics optimization are integrated to calculate the posture of the actuator at each node of the path. The generated disassembly and assembly scheme is submitted to the remote monitoring platform, which supports manual review and confirmation. If no manual confirmation is received, the execution command is automatically triggered within 1 minute.

[0031] An extension plate 122 is provided on each side of the support body 106. The extension plate 122 is provided with through holes. The positions of the through holes at both ends correspond to the relative positions of a certain threaded hole on the end face of the compressor housing 124 and the first threaded hole with an angle greater than 180° with it.

[0032] In use, the base plate 105 is placed at a designated position on one side of the disassembly platform 101, and the impeller cover 125 to be disassembled is placed on the base plate 105. The support body 106 is then fastened to the corresponding threaded hole of the compressor housing 124 using the fixing bolts 123 provided thereon. The rotating component 108 is then assembled onto the support body 106, allowing it to rotate relative to the support body 106. Subsequently, the rotating component 108 is installed on the lifting eye screw 107, and... The lifting eye screw 107 is passed through the through hole in the middle of the support body 106 and connected to the base plate 105. Finally, the rotating component 108 is connected to the support body 106. By driving the rotating component 108 to rotate, its rotational motion can be converted into the linear motion of the lifting eye screw 107 along its axis, thereby driving the base plate 105 and the impeller cover 125 supported on it to move smoothly axially relative to the compressor housing 124, completing the ejection disassembly or press-in assembly operation of the impeller cover 125.

[0033] The base plate 105 includes a first plate 109 and a second plate 110. The first plate 109 is threadedly connected to the eye bolt 107 and is sleeved on the eye bolt 107. The second plate 110 is threadedly connected to the eye bolt 107 and is sleeved on the eye bolt 107.

[0034] Secondly, the first plate 109 has a slot 120, which is located on the side of the first plate 109 near the second plate 110; a pad 121 is provided on the side of the second plate 110 near the first plate 109.

[0035] The angle between the first plate 109 and the second plate 110 is 90 degrees. The first plate 109 and the second plate 110 together form a support plane for supporting the impeller cover 125. A first threaded hole is provided in the middle of the first plate 109, and a second threaded hole is provided at one end of the second plate 110. Both the first threaded hole and the second threaded hole are reverse threaded holes, which are used to connect with the bottom of the lifting eye screw 107. The second plate 110 can be embedded in the slot 120. The engagement of the second plate 110 with the slot 120 realizes the rapid positioning and lateral limitation between the first plate 109 and the second plate 110, preventing them from sliding relative to each other in the horizontal plane. The pad block 121 is used to ensure that the impeller cover 125 remains horizontal during lifting and hoisting.

[0036] Simultaneously, the special nut 112 is threadedly connected to the eye bolt 107 and sleeved on the eye bolt 107; the fastening screw 113 is connected to the special nut 112; the thrust ball bearing 111 is connected to the special nut 112 via the fastening screw 113; the mounting component 114 is used to press the special nut 112 and the thrust ball bearing 111 onto the support body 106; the support body 106 is provided with a mounting bracket that mates with the thrust ball bearing 111 and the special nut 112. The thrust ball bearing 111 is mounted on the special nut 112 via the fastening screw 113. The special nut 112 is mounted on the support body 106 via the mounting component 114. Due to the presence of the thrust ball bearing 111, the torque required for the special nut 112 to rotate is relatively small. Rotating the special nut 112 drives the lifting eye screw 107 to move upward. The lifting eye screw 107 drives the base plate 105 to slowly push out the impeller cover 125, minimizing damage to the housing during disassembly and assembly.

[0037] Second embodiment: Based on the first embodiment, please refer to Figures 2 to 4 The mounting component 114 in this embodiment includes a clamping ring 115 and a clamping screw 116, the rotating component 108 also includes a locking nut 117, and the eye bolt 107 has an ejector thread 118 and a reverse thread 119.

[0038] In this specific embodiment, the clamping ring 115 is connected to the support body 106; the clamping screw 116 passes through the clamping ring 115 and is threadedly connected to the support body 106; the clamping ring 115 is ring-shaped and has a through hole that allows the lifting eye screw 107 to pass through; multiple clamping screws 116 are provided; when installing the thrust ball bearing 111 and the special nut 112, the thrust ball bearing 111 and the special nut 112 are placed into the mounting cavity on the support body 106, and then the clamping ring 115 is installed on the support body 106 through the clamping screws 116.

[0039] The locking nut 117 is threadedly connected to the lifting eye screw 107 and is sleeved on the lifting eye screw 107. When the impeller cover 125 is pushed out, the locking nut 117 is rotated so that the locking nut 117 is tightly attached to the upper end face of the special nut 112 and locked, thereby locking the special nut 112 and preventing the special nut 112 from rotating during the hoisting process.

[0040] Finally, the eye screw 107 has an ejector thread 118 and a reverse thread 119. The ejector thread 118 is threadedly connected to the special nut 112 and the locking nut 117, respectively. The reverse thread 119 is threadedly connected to the first plate 109 and the second plate 110, respectively. The stroke of the ejector thread 118 is greater than 1.5 times the distance from the end face of the impeller casing 125 flow channel to the end face of the threaded hole of the compressor casing 124. The eye screw 107 is composed of an eye, an external hexagon, an ejector thread 118, an extension rod, and a base plate 105 with a reverse thread 119, from top to bottom. The eye screw 107 is integrally machined or welded together. The extension rod is appropriately adjusted in length according to the ejector thread 118 to ensure that the impeller casing 125 is lifted to a sufficient height. The reverse thread 119 ensures that the base plate 105 will not fall off due to rotation during the lifting process.

[0041] When using the turbocharger impeller housing 125 disassembly and assembly system of the present invention, taking the removal of the impeller housing 125 as an example, the execution steps of the actuator are as follows: Step 1: Place the first plate 109 and the second plate 110 at a fixed coordinate point, and then place the compressor housing 124 on the corresponding position above them; fix the support 106 to the compressor housing 124 with the fixing bolts 123.

[0042] Step 2: Install the locking nut 117 and the special nut 112 sequentially on the eye bolt 107, install the thrust ball bearing 111 on the special nut 112 through the fastening screw 113, then pass the eye bolt 107 through the center hole of the support body 106, and install the first plate 109 and the second plate 110 on the eye bolt 107.

[0043] Step 3: Install the clamping ring 115 and the clamping screw 116 on the support body 106, rotate the special nut 112 to push out the impeller cover 125; loosen the fixing bolt 123, tighten the locking nut 117, and lift the impeller cover 125 to the predetermined coordinate position.

[0044] Furthermore, the present invention can also be used for the installation of the impeller casing 125. It is only necessary to replace the support body 106 so that its length is slightly smaller than the outer diameter of the impeller casing 125, and then reverse the above steps. However, the assembly position needs to be confirmed. The RGB-D structured light high-precision vision camera of the end effector of the robotic arm of the execution and feedback module 102 supports object recognition and millimeter-level depth measurement. It measures the height H2 from the bolt end face of the compressor casing 124 to the disassembly platform 101 and the height H1 from the flow channel surface of the impeller casing 125 to the disassembly platform 101, respectively. The difference is calculated by the formula △H=H2-H1. This difference is compared with the casing spacing specified in the design drawings in the database. The program can be ended only if the error is qualified, so as to ensure the clearance between the compressor impeller and the impeller casing 125 to ensure the efficiency of the turbocharger.

[0045] When performing operations, the execution and feedback module 102 collects axial force, radial force and torque during the disassembly and assembly process in real time through force sensors deployed on the joints of the robotic arm and the end effector, and transmits them to the information processing and monitoring mechanism via wired means. Taking the ejection of the impeller cover 125 of a certain model as an example, if the torque applied to the special nut 112 of the ejection tool exceeds the threshold (120 N·m), the system automatically switches to pulse force application mode to avoid scratching of the cover and damage to the bolts. If the torque suddenly increases (greater than 200 N·m), the machine stops immediately and an abnormality is indicated.

[0046] After disassembly and assembly are completed, the execution and feedback module 102 transfers each housing to the hoisting position, the actuator is reset, and the information processing and monitoring module 103 generates a report and performs self-learning optimization based on historical data and algorithms. On the other hand, please see Figure 6 and Figure 7 The present invention also includes a method for disassembling and assembling a turbocharger impeller cover 125, comprising the following steps: S1: By scanning the work area with LiDAR and vision camera, it identifies the size of the parts, the location of the threaded holes and environmental risks, combines the weight data to match the 3D model and automatically selects the appropriate disassembly and assembly tools to generate a safe and optimal disassembly and assembly operation plan. S2: Place the base plate 105 on the disassembly platform 101 according to the planned position; hoist the compressor housing 124 to be operated and place it stably above the base plate 105; fasten the support body 106 to the threaded hole on the end face of the compressor housing 124 through the fixing bolts 123 on its extension plate 122. S3: Install a locking nut 117, a special nut 112, and a thrust ball bearing 111 sequentially on the eye bolt 107; pass the eye bolt 107 through the central through hole of the support body 106, so that the reverse thread 119 at its bottom connects with the threaded hole of the base plate 105; use a clamping ring 115 and a clamping screw 116 to axially clamp and fix the special nut 112 and the thrust ball bearing 111 assembly to the support body 106; S4: Drive the robotic arm to rotate the special nut 112, converting the rotational motion into the axial linear motion of the eye screw 107, thereby pushing out or pressing into the impeller cover 125; S5: After disassembly, loosen the fixing bolts 123, tighten the locking nut 117 to lock it with the special nut 112, and lift and transfer the impeller cover 125 through the lifting eye on the top of the lifting eye bolt 107; S6: During assembly, replace the support body 106 with one of appropriate length and perform the pressing operation in reverse order.

[0047] The present invention provides a method for disassembling and assembling a turbocharger impeller casing, the working logic of which is as follows: (1) The information processing and monitoring module receives disassembly and assembly instructions, scans the work area with lidar and vision camera to identify risk sources in the work space and issue reminders; (2) Determine the housing specifications based on the housing dimensions, thread hole positions and quantities transmitted by the lidar and vision camera, as well as the weight data transmitted by the disassembly and assembly platform weight sensor. Call the three-dimensional model database and select the appropriate size disassembly and assembly tool according to the tool-housing correspondence table. (3) The system automatically evaluates the actual situation from multiple dimensions, including perception (vision, torque, etc.), decision-making (path, disassembly strategy, etc.), execution (wear and deviation status of robotic arm), and safety, through target detection and segmentation, path planning and reinforcement learning algorithms. It selects the scheme with the smoothest disassembly and assembly, the shortest path and the lowest energy consumption. It also uses the DH parameter method to fuse RGB-D vision sensors and kinematic inverse optimization to calculate the attitude of the actuators at each node of the path. The generated disassembly and assembly scheme is submitted to the remote monitoring platform, which supports manual review and confirmation. If there is no manual confirmation, the execution command is automatically triggered within 1 minute.

[0048] (4) The execution and feedback module collects axial force, radial force and torque during disassembly and assembly in real time through force sensors deployed on the joints of the robotic arm and the end effector, and transmits them to the information processing and monitoring module via wired means. If the threshold is exceeded, the execution is suspended and the cause is analyzed. If there is no result, the program is terminated and the remote monitoring platform is notified for manual review.

[0049] (5) After disassembly and assembly, the actuator will transfer each housing to the hoisting position, the execution and feedback module will be reset, and the information processing and monitoring module will generate a report and perform self-learning optimization based on historical data and algorithms.

[0050] (6) If it is an assembly step, the assembly position needs to be confirmed. The height H2 from the end face of the compressor housing bolt to the disassembly platform and the height H1 from the flow channel surface of the impeller cover to the disassembly platform are measured by RGB-D structured light high-precision vision camera. The difference is calculated by the formula △H=H2-H1. The difference is compared with the housing spacing specified in the design drawings in the database. The program can be ended only if the error is qualified.

[0051] Compared with the prior art, the present invention has the following beneficial effects: To address the challenges of heavy and difficult-to-lift large turbocharger housings, the disassembly and assembly of the impeller casing are integrated into the mechanical assembly process. Using a closed-loop logic of "perception-decision-execution-feedback-optimization," the entire disassembly and assembly process is automated and safe, minimizing damage to the housing and ensuring personnel safety.

[0052] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A turbocharger wheel cover removal system, comprising: The disassembly platform is provided with an execution and feedback module, an information processing and monitoring module, and a disassembly assembly; The disassembly assembly comprises a bottom plate, a support body, a lifting eye screw, and a rotating member. The bottom plate is arranged on one side of the disassembly platform. The support body is provided with fixing bolts. The support body is connected to the compressor casing through the fixing bolts. The rotating member is rotatably arranged on the support body. The lifting eye screw is threadedly connected with the bottom plate and the rotating member, and penetrates through the support body.

2. The turbocharger impeller cover disassembly system according to claim 1, wherein The bottom plate comprises a first plate body and a second plate body. The first plate body is threadedly connected with the lifting eye screw and is sleeved on the lifting eye screw. The second plate body is threadedly connected with the lifting eye screw and is sleeved on the lifting eye screw.

3. The turbocharger impeller cover disassembly system according to claim 2, wherein The rotating member comprises a thrust ball bearing, a special nut, a fastening screw, and a mounting component. The special nut is threadedly connected with the lifting eye screw and is sleeved on the lifting eye screw. The fastening screw is connected with the special nut. The thrust ball bearing is connected with the special nut through the fastening screw. The mounting component is used for pressing the special nut and the thrust ball bearing on the support body.

4. The turbocharger impeller cover disassembly system according to claim 3, wherein The mounting component comprises a pressing ring and a pressing screw. The pressing ring is connected with the support body. The pressing screw is threadedly connected with the support body and penetrates through the pressing ring.

5. The turbocharger impeller cover disassembly system according to claim 4, wherein The rotating member further comprises a locking nut. The locking nut is threadedly connected with the lifting eye screw and is sleeved on the lifting eye screw.

6. The turbocharger impeller cover disassembly system according to claim 5, wherein The lifting eye screw has an ejection thread and a reverse thread. The ejection thread is threadedly connected with the special nut and the locking nut respectively. The reverse thread is threadedly connected with the first plate body and the second plate body respectively. The stroke of the ejection thread is greater than 1.5 times the distance from the impeller cover flow passage end face to the compressor casing threaded hole end face.

7. The turbocharger impeller cover disassembly system according to claim 2, wherein The first plate body has a clamping groove arranged on the side close to the second plate body. The second plate body has a pad arranged on the side close to the first plate body.

8. A method of disassembling a turbocharger wheel cover using the turbocharger wheel cover disassembling system according to any one of claims 1 to 7, characterized by, The steps comprise: Scanning the working area by laser radar and visual camera, identifying the component size, threaded hole position, and environmental risk, matching the three-dimensional model combined with the weight data, and automatically selecting the appropriate disassembly tool to generate a safe and optimal disassembly operation scheme; Placing the bottom plate on the disassembly platform according to the planned position; lifting the compressor casing to be operated and stably placing it above the bottom plate; Fastening the support body to the corresponding threaded hole of the compressor casing end face through the fixing bolts on the extension plate of the support body; Install locking nut, special nut and thrust ball bearing on the lifting ring screw in order; pass the lifting ring screw through the center through hole of the support body, connect the reverse thread at the bottom of the lifting ring screw with the thread hole of the bottom plate; use the compression ring and compression screw to axially compress and fix the special nut and thrust ball bearing assembly on the support body; Drive the mechanical arm to rotate the special nut, convert the rotary motion into the axial linear motion of the lifting ring screw, thereby eject or press the impeller cover; After disassembly is completed, loosen the fixing bolt, tighten the locking nut to lock it with the special nut, lift and transfer the impeller cover through the lifting ring at the top of the lifting ring screw; During assembly, replace the support body with appropriate length and perform the pressing operation in reverse order.

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