Assembling production line of high-performance turbocharger for refitted vehicle

Abstract

The invention belongs to the technical field of assembly of turbochargers, and particularly relates to an assembly production line of a high-performance turbocharger for a modified vehicle, which comprises four procedures, namely an assembly procedure, an air tap installation procedure, a hoop installation procedure and an actuator calibration procedure, the air tap installation procedure comprises an energy-saving air pressure element, and the hoop installation procedure comprises a hoop installation procedure and an actuator calibration procedure. The energy-saving air pressure element comprises an air pressure cylinder, an air pressure rod and an air tap mounting shaft, and the air tap mounting shaft is fixedly mounted at the bottom of the air pressure rod; the assembly method comprises the following assembly steps: S1, mounting a turbine shaft vortex end sealing ring, mounting a clamping spring for mounting a middle body hole, mounting a shaft seal fixed sleeve pressing end sealing ring, mounting a rectangular check ring at the middle body pressing end for limiting, mounting a heat shield at the middle body vortex end and mounting a turbine rotor through an assembly process; the device solves the problems that when an air tap of a high-performance turbocharger is assembled at present, stability is poor, so that energy consumption is increased, and meanwhile the air tap is not installed in place.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of turbocharger assembly, and particularly relates to an assembly production line for a high-performance turbocharger for a modified vehicle. BACKGROUND

[0002] The turbocharger is actually an air compressor that increases the intake air by compressing air, and the parts thereof need to be assembled after production. Four processes are currently arranged to assemble the turbocharger, and the assembly processes are sequentially an assembly process, an air nozzle installation process, a clamp installation process and an actuator calibration process. When the air nozzle is installed, the stability of the air nozzle inserted into the pressure shell needs to be high. However, at present, when the air nozzle is installed into the pressure shell, the installation is unstable due to the fast insertion speed, the air nozzle is easily inserted at an angle due to the high-speed collision between the air nozzle and the pressure shell, the pressure shell is even damaged, and the air nozzle is scrapped, which greatly increases the cost. The air pressure strength often needs to be adjusted to adjust the air nozzle insertion speed to improve the production capacity, which leads to an increase in the energy consumption of the external air pump. This phenomenon has become a problem that needs to be solved by personnel in the field. SUMMARY

[0003] The present application aims to provide an assembly production line for a high-performance turbocharger for a modified vehicle to solve the problems in the background art.

[0004] In order to solve the above technical problems, the present application provides the following technical scheme: an assembly production line for a high-performance turbocharger for a modified vehicle, which includes four processes, and the four processes are respectively an assembly process, an air nozzle installation process, a clamp installation process and an actuator calibration process. The air nozzle installation process includes an energy-saving air pressure element, the energy-saving air pressure element includes an air pressure cylinder, an air pressure rod and an air nozzle installation shaft, the air nozzle installation shaft is fixedly installed at the bottom of the air pressure rod, and the assembly steps include: step S1, installing a turbine shaft rotating vortex end sealing ring, installing a middle body hole using a clamp spring, installing an axle seal set pressure end sealing ring, installing a middle body pressure end rectangular check ring limiting installation, installing a middle body vortex end heat shield and turbine rotor, installing a middle body vortex end heat shield and turbine rotor, and partially assembling a middle body pressure end through the assembly process; step S2, installing the air nozzle on the middle body through the energy-saving air pressure element in the air nozzle installation process to complete the air nozzle installation; step S3, installing the clamp through the clamp installation process; and step S4, performing actuator calibration work through the actuator calibration process, thereby completing the assembly of the high-performance turbocharger.

[0005] The application further discloses that the bottom of the air nozzle arrangement shaft is provided with an air nozzle arrangement groove, and an air cavity is communicated above the arrangement groove, and the air cavity is connected with an external air source pipeline; the upper end of the air cylinder is connected with the external air source pipeline, the bottom of the air cylinder is provided with a cylinder cover, a threaded hole is arranged in the middle of the cylinder cover, an air pressure rod is inserted into the threaded hole, an air pressure plate is slidably connected to the inner wall of the air cylinder, and a sealing element is arranged at the sliding position; and the bottom end of the air pressure plate is welded and fixed with the upper end of the air pressure rod.

[0006] The application further discloses that a threaded sleeve is threadedly connected in the threaded hole of the cylinder cover, the upper end of the threaded sleeve is rotatably connected with a shaft sleeve, a pin shaft is integrally formed on the inner wall of the shaft sleeve, and a rolling ring is sleeved on the pin shaft; the outer ring of the air pressure rod is provided with a spiral groove, the rolling ring is embedded in the spiral groove and is attached to the inner wall of the spiral groove, and the air pressure rod is inserted into the threaded sleeve.

[0007] The application further discloses that the bottom end of the threaded sleeve is integrally formed with a nut.

[0008] The application further discloses that sliding grooves are arranged on the front and back sides of the air pressure rod, sliding blocks are slidably connected in the sliding grooves, a plurality of arc-shaped grooves are arranged on the surface of the sliding block, and the arc-shaped grooves and the spiral groove are matched with each other.

[0009] The application further discloses that a knob is sleeved on the outer side of the bottom of the air pressure rod, a circular arc groove and a clamping groove are arranged in the knob in a relative mode, a protrusion is arranged at the bottom end of the sliding block and is embedded in the clamping groove, a sliding hole is arranged in the knob in a relative mode, and a jack is slidably connected in the sliding hole.

[0010] The application further discloses that three annular grooves are arranged on the outer side of the bottom of the air pressure rod, the inner end of the jack is spherical, is located in the circular arc groove and is embedded in the annular groove, and a spring is arranged at the outer end of the jack.

[0011] The application further discloses that the jack is embedded in the middle annular groove in an initial state, and the other two annular grooves are arranged on the upper and lower sides of the middle annular groove, respectively; and the upper end part of the arc-shaped groove and the matching part of the spiral groove and the arc-shaped groove are all chamfered.

[0012] Compared with the prior art, the application has the following beneficial effects: the application adopts four processes to complete the automatic installation of the turbocharger, when the air nozzle is installed, the friction force between the rolling ring and the spiral groove is used to slow down the descending speed of the air pressure rod, so that the impact speed during the installation of the air nozzle is avoided from being too fast to cause the air nozzle to be not installed in place or even to be pressed into the air nozzle and the shell, and the descending speed of the air pressure rod is slowed down, so that the air pressure intensity of the external air source does not need to be changed, the power consumption of the power device for driving the external air source is avoided from being too large, the power is stabilized, and the energy-saving effect is achieved. In the installation of the air nozzle, the shaking of the air pressure rod can detect whether the air nozzle will be separated from the air nozzle setting shaft, because the gap between the air nozzle and the inner wall of the air nozzle setting groove makes the air nozzle easy to be adsorbed when the external air source extracts the gas in the air cavity, at this time, the shaking is used to judge whether the air nozzle will fall out, so as to avoid the air nozzle from being loose when it is about to be inserted into the pressure shell, thereby improving the installation quality of the air nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of this specification that illustrates the present application and explains the present application together with the embodiments of the present application, and do not constitute a limitation of the present application. In the drawings: Figure 1 is a schematic diagram of the equipment of the four processes of the present application; Figure 2 is a schematic diagram of the structure of the air nozzle installation process of the present application; Figure 3 is a plan view of the energy-saving air pressure element of the present application; Figure 4 is an exploded view of the energy-saving air pressure element of the present application; Figure 5 is a front sectional view of the energy-saving air pressure element of the present application; Figure 6 is a side sectional view of the energy-saving air pressure element of the present application; Figure 7 is a schematic diagram of the position relationship between the helical groove and the arc-shaped groove after the pushing block moves upward and downward; In the figure: 3, air cylinder; 31, cylinder cover; 32, air pressure plate; 33, screw sleeve; 34, shaft sleeve; 341, pin shaft; 342, rolling ring; 35, nut; 4, air pressure rod; 41, helical groove; 42, sliding block; 421, arc-shaped groove; 43, pushing block; 431, top rod; 44, ring groove; 5, air nozzle setting shaft; 51, air nozzle setting groove; 52, air cavity. DETAILED DESCRIPTION

[0014] The technical solutions of the present application will be further described in detail below in combination with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0015] Please refer to Figures 1-7The application provides a technical scheme: an assembly production line for a high-performance turbocharger for a modified vehicle, which comprises four processes, namely, an assembling process, an air nozzle installation process, a clamp installation process and an actuator calibration process, the air nozzle installation process comprises an energy-saving pneumatic element, the energy-saving pneumatic element comprises a pneumatic cylinder 3, a pneumatic rod 4 and an air nozzle installation shaft 5, the air nozzle installation shaft 5 is fixedly installed at the bottom of the pneumatic rod 4, and the assembly steps comprise the following steps: S1, installing a turbine shaft rotating turbine end sealing ring through the assembling process, installing a middle body hole spring, installing an axle seal fixed sleeve and a pressure end sealing ring, installing a rectangular retainer ring for limiting the middle body pressure end, installing a heat shield and a turbine rotor for the middle body turbine end, installing a heat shield and a turbine rotor for the middle body turbine end, and partially assembling the middle body pressure end; S2, installing an air nozzle on the middle body through the energy-saving pneumatic element in the air nozzle installation process, and completing air nozzle installation; S3, installing a clamp through the clamp installation process; S4, performing actuator calibration through the actuator calibration process, and then completing assembly of the high-performance turbocharger; The turbine shaft rotating turbine end sealing ring installation process is as follows: selecting a turbine end sealing ring of an appropriate type, ensuring that the surface of the sealing ring is free of scratches, deformation or oil stains, cleaning the turbine shaft, uniformly applying force to the sealing ring through a special installation tool, stably embedding the sealing ring into a sealing groove at the turbine end of the turbine shaft, and confirming that the sealing ring completely fits the groove wall and has no tilting or deviation; The middle body hole spring installation process is as follows: cleaning the inner wall of a middle body hole and a spring groove, removing impurities and burrs, selecting a spring of a matched specification, opening the spring with a spring clamp, slowly putting the spring into the spring groove of the middle body hole, releasing the spring clamp to allow the spring to naturally reset, checking whether the spring is completely clamped into the groove, and ensuring that the spring is firmly installed and free of looseness; The axle seal fixed sleeve and pressure end sealing ring installation process is as follows: cleaning the axle seal fixed sleeve and the pressure end sealing ring, ensuring that the contact surfaces are free of oil stains and impurities, sleeving the pressure end sealing ring into a corresponding installation position of the axle seal fixed sleeve, uniformly applying pressure to the pressure end sealing ring along the axial direction through a pressing tool until the sealing ring completely fits the installation step, and confirming that the sealing ring is installed in place and has no tilting or falling risk; The middle body pressure end rectangular retainer ring limiting installation process is as follows: cleaning a retainer ring installation groove at the middle body pressure end, selecting a rectangular retainer ring of a matched size, stably putting the retainer ring into the installation groove, and lightly pressing the retainer ring in the circumferential direction through a tool to ensure that the retainer ring is tightly fitted with the groove wall, reliably limited, and free of axial movement of subsequent assembly components; The intermediate body turbine end heat shield mounting process is: first, the heat shield is mounted to the specified position of the intermediate body turbine end, and after the mounting hole is aligned, the heat shield is pre-fixed by bolts, the turbine rotor with the installed turbine end sealing ring is slowly inserted into the intermediate body turbine end assembly hole, the turbine shaft is coaxially fitted with the intermediate body bearing hole, the position of the heat shield is adjusted, the fixing bolts are tightened, and it is checked that the heat shield does not interfere with the turbine rotor and the clearance meets the technical requirements; The intermediate body pressure end partial assembly process is: the bearings, thrust sheets and other components of the intermediate body pressure end are sequentially mounted, it is ensured that each component is clean and undamaged, and the mounting direction is correct, the compressor impeller is sleeved on the turbine shaft pressure end, it is ensured that the impeller is connected firmly with the shaft, and it is checked during the mounting process that the impeller rotates flexibly without jamming and abnormal sound; The air nozzle mounting process is: the air nozzle is placed in the air nozzle mounting shaft 5, and gas is injected into the air cylinder 3, the air nozzle mounting shaft 5 is lowered by the air pressure rod 4, thereby the air nozzle is lowered and inserted into the pressure shell; The hoop mounting process is: after the volute and the pressure shell are assembled, the hoop is selected to be of a suitable size, the hoop is sleeved on the joint to make the hoop completely locked, it is ensured that the connection part is sealed and reliable without loosening, and the hoop does not affect the movement of the surrounding components; After the assembly is completed, the actuator calibration work is performed.

[0016] The bottom of the air nozzle mounting shaft 5 is provided with an air nozzle mounting groove 51, and the upper part of the mounting groove is communicated with an air cavity 52, the air cavity 52 is connected with an external gas source pipeline; the upper end of the air cylinder 3 is connected with the external gas source pipeline, the bottom of the air cylinder 3 is provided with a cylinder cover 31, the middle of the cylinder cover 31 is provided with a threaded hole, and the air pressure rod 4 is inserted into the threaded hole, the inner wall of the air cylinder 3 is slidably connected with an air pressure plate 32, and a sealing element is arranged at the sliding part, and the bottom end of the air pressure plate 32 is welded and fixed with the upper end of the air pressure rod 4; The air nozzle is inserted into the air nozzle mounting groove 51 of the air nozzle mounting shaft 5, the external gas source draws the gas in the air cavity 52 through the pipeline, thereby negative pressure is generated in the air nozzle mounting groove 51 to adsorb the air nozzle, the external gas source enters the air cylinder 3 through the pipeline, the air pressure drives the air pressure plate 32 to slide downward along the inner wall of the air cylinder 3, thereby the air pressure rod 4 is driven to move downward, the air pressure rod 4 drives the air nozzle to insert into the pressure shell through the air nozzle mounting shaft 5, the air nozzle mounting is performed, the operation is simple and convenient, the automatic operation is realized, and the work efficiency is high.

[0017] A screw sleeve 33 is threadedly connected in the threaded hole of the cylinder cover 31, an axle sleeve 34 is rotatably connected with the upper end of the screw sleeve 33, a pin shaft 341 is integrally formed on the inner wall of the axle sleeve 34, and a rolling ring 342 is sleeved on the pin shaft 341; the outer circle of the air pressure rod 4 is provided with a spiral groove 41, the rolling ring 342 is embedded in the spiral groove 41 and abuts against the inner wall of the spiral groove 41, and the air pressure rod 4 is inserted into the screw sleeve 33; The external air source enters the air cylinder 3 through the pipeline, the air pressure plate 32 is lowered, the air pressure rod 4 is driven to be lowered, when the air pressure rod 4 is lowered, the rolling ring 342 in the shaft sleeve 34 is tightly attached to the upper inner wall of the spiral groove 41 of the air pressure rod 4, and the rolling ring 342 is rolled in the spiral groove 41 by moving downward with the air pressure rod 4, the shaft sleeve 34 is rotated on the screw sleeve 33 by the friction force, the speed of the air pressure rod 4 is slowed down by the friction force between the rolling ring 342 and the spiral groove 41, the impact speed is avoided when the air nozzle is installed, the air nozzle is not installed in place, and the phenomenon of the air nozzle and the pressure ring is avoided, and the speed of the air pressure rod 4 is slowed down, so that the air pressure intensity of the external air source is not changed, the power consumption of the power device driving the external air source is avoided, the power is stable, and the energy saving effect is achieved.

[0018] The bottom end of the screw sleeve 33 is integrally formed with a nut 35. The operator turns the nut 35 by using a tool, so that the screw sleeve 33 is rotated and moved downward through the threaded hole of the cylinder cover 31, so that the shaft sleeve 34 is moved downward, and the rolling ring 342 is separated from the inner wall of the spiral groove 41, so that the friction force is reduced to control the descending speed of the air nozzle. The descending speed of the air nozzle is controlled by turning the nut 35, and the power intensity of the driving device of the external air source is not changed, so that the energy consumption of assembling the turbocharger is reduced to the greatest extent, and the cost is reduced.

[0019] The front and rear sides of the air pressure rod 4 are provided with sliding grooves, and the sliding grooves are slidably connected with sliding blocks 42.

[0020] The bottom outside of the air pressure rod 4 is sleeved with a pushing block 43, the inside of the pushing block 43 is provided with oppositely arranged circular arc grooves and clamping grooves; the bottom end of the sliding block 42 is provided with a protrusion, and the protrusion is embedded in the clamping groove; the inside of the pushing block 43 is provided with oppositely arranged sliding holes, and the sliding holes are slidably connected with jacks 431.

[0021] The bottom outside of the air pressure rod 4 is provided with three ring grooves 44, the inner end of the jack 431 is spherical, located in the circular arc groove, and embedded in the ring groove 44, and the outer end of the jack 431 is provided with a spring. When the air nozzle is installed, the operator can move the push block 43 upward, so as to drive the protrusion to move upward through the clamping groove, and drive the sliding block 42 to move upward, at this time, the arc-shaped groove 421 of the sliding block 42 is no longer matched with the spiral groove 41, and the jacking rod 431 enters the upper ring groove 44 from the middle ring groove 44, and the jacking rod 431 moves under force, so that the spring is deformed and reset, when the rolling ring 342 rolls to the arc-shaped groove 421, it is embedded in the arc-shaped groove 421, and then it is separated from the arc-shaped groove 421, so that the air pressure rod 4 shakes when it moves downward, through the shaking of the air pressure rod 4, whether the air nozzle will be separated from the air nozzle installation shaft 5 can be detected, because the gap between the air nozzle and the inner wall of the air nozzle installation groove 51 when the external gas source extracts the gas in the air cavity 52, the air nozzle is easy to adsorb, at this time, whether the air nozzle will fall out is judged through shaking, so as to avoid that the air nozzle is loose when it is about to be inserted into the shell, and the installation quality of the air nozzle is improved.

[0022] The jacking rod 431 is embedded in the middle ring groove 44 in the initial state, and the other two ring grooves 44 are located on the upper and lower sides of the middle ring groove 44 respectively; the upper end part of the arc-shaped groove 421 and the matching part of the spiral groove 41 and the arc-shaped groove 421 are all chamfered; When the push block 43 is moved upward, the air pressure rod 4 shakes, at this time, only whether the air nozzle is easy to fall out is detected, and the descending speed of the air nozzle cannot be reduced to the maximum strength, for batch installation of the air nozzle, the installation efficiency can be improved, otherwise, for installation without task limit, the operator can move the push block 43 downward, so that the jacking rod 431 is embedded in the lower ring groove 44, and the sliding block 42 moves downward through the clamping groove and the protrusion, at this time, when the air nozzle falls out during installation of the air nozzle, the operator cannot stop the air nozzle installation work in time, when the rolling ring 342 rolls to the arc-shaped groove 421, it is extruded by the upper inner wall of the arc-shaped groove 421, the stress of the rolling ring 342 increases, and the friction force increases, so that the descending speed of the air pressure rod 4 is reduced, and the descending speed of the air nozzle is further reduced, so that the phenomenon that the air nozzle installation process cannot be stopped in time is avoided, and enough reaction time is given to the operator; The whole air nozzle installation process structure is simple, the manufacturing cost is low, and the adaptability is strong, so that different situations during installation of the air nozzle can be coped with, and the use effect is better.

[0023] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0024] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An assembly line for a high-performance turbocharger for modified vehicles, comprising four processes, characterized in that: The four processes are assembly, nozzle installation, clamp installation and actuator calibration. The nozzle installation process includes an energy-saving pneumatic element, which includes a pneumatic cylinder (3), a pneumatic rod (4) and a nozzle mounting shaft (5). The nozzle mounting shaft (5) is fixedly installed at the bottom of the pneumatic rod (4). The assembly steps include: step S1, installing the turbine shaft volute end sealing ring, installing the intermediate body hole spring, installing the shaft seal fixing set pressure end sealing ring, installing the intermediate body pressure end rectangular retaining ring limit, installing the intermediate body volute end heat insulation cover and turbine rotor, installing the intermediate body volute end heat insulation cover and turbine rotor, and assembling the intermediate body pressure end part. Step S2: Using the energy-saving pneumatic component in the nozzle installation process, install the nozzle onto the intermediate body to complete the nozzle installation; Step S3: Install the clamps using the clamp installation process; Step S4: Perform actuator calibration through the actuator calibration process, and then complete the assembly of the high-performance turbocharger.

2. The assembly line for a high-performance turbocharger for modified vehicles according to claim 1, characterized in that: The bottom of the air nozzle mounting shaft (5) is provided with an air nozzle mounting groove (51), and the upper part of the mounting groove is connected to an air chamber (52). The air chamber (52) is connected to an external air source pipe. The upper end of the pneumatic cylinder (3) is connected to an external air source pipe. The bottom of the pneumatic cylinder (3) is equipped with a cylinder cover (31). The middle of the cylinder cover (31) is provided with a threaded hole, and the pneumatic rod (4) is inserted into the threaded hole. The inner wall of the pneumatic cylinder (3) is slidably connected with a pneumatic plate (32), and a sealing element is provided at the sliding part. The bottom end of the pneumatic plate (32) is welded and fixed to the upper end of the pneumatic rod (4).

3. The assembly line for a high-performance turbocharger for modified vehicles according to claim 2, characterized in that: The cylinder head (31) has a threaded hole with a threaded sleeve (33) connected to it. The upper end of the threaded sleeve (33) is rotatably connected to a bushing (34). The inner wall of the bushing (34) is integrally formed with a pin (341), and a rolling ring (342) is sleeved on the pin (341). The outer ring of the air rod (4) is provided with a spiral groove (41), and the rolling ring (342) is embedded in the spiral groove (41) and fits against the inner wall of the spiral groove (41). The air rod (4) is inserted into the threaded sleeve (33).

4. The assembly line for a high-performance turbocharger for modified vehicles according to claim 3, characterized in that: The bottom end of the threaded sleeve (33) is integrally formed with a nut (35).

5. The assembly line for a high-performance turbocharger for modified vehicles according to claim 4, characterized in that: The pneumatic rod (4) has sliding grooves on both the front and rear sides, and a slider (42) is slidably connected in the sliding groove. The surface of the slider (42) has several arc-shaped grooves (421), and the arc-shaped grooves (421) and the spiral grooves (41) fit together.

6. The assembly line for a high-performance turbocharger for modified vehicles according to claim 5, characterized in that: The bottom outer side of the pneumatic rod (4) is fitted with a toggle block (43), and the inside of the toggle block (43) is provided with an arc groove and a snap-fit ​​groove that are arranged oppositely; the bottom end of the slider (42) is provided with a protrusion, and the protrusion is embedded in the snap-fit ​​groove; the inside of the toggle block (43) is provided with a sliding hole that is arranged oppositely, and a top rod (431) is slidably connected in each sliding hole.

7. The assembly line for a high-performance turbocharger for modified vehicles according to claim 6, characterized in that: The bottom outer side of the pneumatic rod (4) is provided with three annular grooves (44), the inner end of the top rod (431) is spherical and located in the arc groove and embedded in the annular groove (44), and the outer end of the top rod (431) is provided with a spring.

8. The assembly line for a high-performance turbocharger for modified vehicles according to claim 7, characterized in that: The top rod (431) is initially embedded in the middle annular groove (44), and the other two annular grooves (44) are located on the upper and lower sides of the middle annular groove (44); the upper part of the arc groove (421) and the mating part of the spiral groove (41) and the arc groove (421) are all rounded.

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