Production equipment and production process for producing castings for automobile transmission shafts

Abstract

The invention discloses production equipment and a production process for producing castings for automobile transmission shafts, and relates to the technical field of casting, the production equipment comprises a furnace body, a plurality of vehicle bodies and a smoke exhaust mechanism, a channel is formed in the furnace body in a penetrating mode in the horizontal direction, and a track is laid on the ground and is arranged in the channel forming direction; a gate assembly is further arranged at an opening of the channel in the furnace body, the multiple vehicle bodies are sequentially arranged in the length direction of the track, each vehicle body can reciprocate along the track, and the smoke exhaust mechanism comprises a smoke exhaust pipe arranged on the furnace body and a fan arranged in the smoke exhaust pipe. A dust removal assembly for filtering smoke is further arranged in the smoke exhaust pipe, the dust removal assembly is located between the draught fan and the furnace body, and the smoke exhaust pipe is further communicated with a collecting assembly for collecting dust. The smoke exhaust mechanism is installed in an existing smoke exhaust pipe, extra space does not need to be occupied, and therefore compared with the prior art, the effect that the occupied land resources are smaller is achieved.

Description

Technical Field

[0001] This application relates to the technical field of casting, and in particular to a production equipment and process for producing castings for automobile drive shafts. Background Technology

[0002] In investment casting (water glass mold shell process), after the mold completes the dewaxing process, it needs to be thoroughly burned off with high temperature in a baking furnace to avoid porosity or defects during subsequent metal pouring. At the same time, high-temperature sintering further dehydrates and sintersulates the unreacted sodium silicate in the mold shell, forming a more complex silica bond network, which improves the thermal shock resistance and deformation resistance of the mold shell during re-pouring, so as to withstand the impact of high-temperature molten metal (such as steel and cast iron).

[0003] Existing roasting furnaces typically include a furnace body, a track, and a carriage. The furnace body has a channel for the track to pass through. The carriage moves along the track and can slide into the channel of the furnace body. The wax mold of the drive shaft is placed on the carriage after being wrapped in a ceramic shell. Once the carriage enters the channel, the furnace body begins to heat the material on the carriage. There are also gates on both sides of the furnace body for sealing, and the furnace body is also equipped with a flue gas exhaust mechanism for discharging flue gas.

[0004] However, existing smoke extraction systems all include dust removal devices such as bag filters and electrostatic precipitators. These devices are large in size, which greatly increases the overall size of the production equipment and leads to a greater consumption of land resources. Summary of the Invention

[0005] The purpose of this application is to provide a production equipment for manufacturing castings for automotive drive shafts, which has a relatively small size and reduces the equipment's consumption of land resources.

[0006] Firstly, the technical solution provided in this application for a production equipment for manufacturing castings for automotive drive shafts is as follows: The furnace body has a channel running through it horizontally, and a track is laid on the ground along the direction of the channel. A gate assembly is also provided at the opening of the channel on the furnace body to control the opening and closing of the channel. Multiple car bodies are arranged sequentially along the length of the track. Each car body can move back and forth along the track, and each car body is equipped with a drive device to move the car body. The exhaust system includes an exhaust pipe installed on the furnace body and a fan installed inside the exhaust pipe. A dust removal component for filtering the flue gas is also installed inside the exhaust pipe. The dust removal component is located between the fan and the furnace body. A dust collection component is also connected to the exhaust pipe.

[0007] Optionally, the dust removal assembly includes an installation tube, which is coaxially fixedly installed on the inner wall of the exhaust pipe. The installation tube has multiple arrayed installation slots along its own axis, and an anode tube is coaxially arranged in each installation slot. An installation frame is also provided on the inner wall of the exhaust pipe, and multiple cathode rods are arranged on the installation frame. Each cathode rod corresponds to one anode tube, and the cathode rods are coaxially inserted into the interior of the anode tubes without contacting the anode tubes. A dust removal assembly for cleaning the inner wall of the anode tubes is also provided inside the exhaust pipe. The installation frame is non-conductive.

[0008] Optionally, the ash removal assembly includes a sliding frame, which is coaxially slidably mounted on the inner wall of the flue pipe. The sliding frame is located on the side of the mounting pipe that is relatively close to the furnace body. The sliding frame has multiple guide holes, each corresponding to a plurality of anode tubes, and the guide holes are coaxially arranged with the anode tubes. A guide pipe is coaxially arranged between the guide holes and the anode tubes. One end of the guide pipe is fixedly connected to the inner wall of the guide hole, and the other end of the guide pipe is slidably inserted into the anode tube. The outer peripheral wall of the guide pipe slides against the inner peripheral wall of the anode tube. The flue pipe is provided with a driving component for driving the sliding frame to move axially. The sliding frame is non-conductive.

[0009] Optionally, a partition tube is coaxially connected to one end of the guide tube near the anode tube. The diameter of the partition tube is the same as the diameter of the end of the guide tube near the anode tube. When the guide tube is located at the position furthest from the anode tube, the partition tube is in contact with the anode tube, while the guide tube is not in contact with the anode tube. When the guide tube is slidably inserted into the anode tube, the guide tube is in contact with the anode tube. The guide tube is capable of conducting electricity, and the diameters at both ends of the guide tube are larger than the diameter in the middle of the guide tube. The wall of the middle section of the guide tube does not contact the cathode rod and the anode tube.

[0010] Optionally, both the fan and the drive unit are electrically connected to the control center. When the drive unit drives the sliding frame to move along the direction closer to the mounting pipe, the speed of the fan gradually decreases, and vice versa.

[0011] Optionally, the mounting bracket has multiple wires inside, each corresponding to a cathode rod. One end of each wire is electrically connected to a cathode rod, and the other end is connected to a bus. The bus is connected to an external power source, and a current tester is also installed on the bus, which is electrically connected to the control center.

[0012] Optionally, the collection assembly includes a collection pipe and a collection box. The collection pipe is connected to the exhaust pipe, and the collection box is located below the exhaust pipe. The collection pipe is arranged vertically, and the end of the collection pipe away from the exhaust pipe is connected to the collection box. The connection between the collection pipe and the exhaust pipe is located between the fan and the mounting pipe.

[0013] Optionally, a filter membrane is also coaxially installed inside the exhaust pipe. The filter membrane allows gas to pass through but does not allow particles to pass through. The filter membrane is installed at the connection between the collection pipe and the exhaust pipe, and the filter membrane is relatively close to the fan.

[0014] Secondly, this application provides a manufacturing process for producing castings for automotive drive shafts, comprising the following steps: S1: Place the material on the vehicle body and open the gate assembly at one end of the furnace body; S2: Start the car body, allowing it to enter the furnace passage along the track. Close the opened gate assembly, creating a relatively enclosed space with the furnace body, gate assembly, and car body. S3: Start the external power supply and current tester in the fan and smoke exhaust assembly, and then start the furnace body. The furnace body begins to heat the materials on the vehicle body. The fan draws the flue gas in the furnace body into the smoke exhaust pipe. The dust in the flue gas is adsorbed on the inner wall of the anode tube when it passes through the anode tube. S4: When the current tester detects that the current has dropped to the preset value, the drive unit is activated to drive the sliding frame to move along the direction closer to the mounting frame. The guide tube slides into the anode tube and scrapes the dust on the inner wall of the anode tube from the end closer to the mounting frame. After the dust in the anode tube is scraped out, it falls from the collection tube into the collection box. At this time, the guide tube acts as the anode tube and continues to adsorb the dust in the flue gas. S5: After the dust in the anode tube is cleaned, the drive unit drives the sliding frame to move back, and the guide tube moves back to the initial position. There is no current in the guide tube, so the dust on the inner wall of the guide tube is no longer subject to electrostatic adsorption force, and is carried into the anode tube that has been cleaned with the flow of flue gas. The anode tube re-adsorbs the dust in the flue gas, and then repeats the above operations S4 and S5. S6: After the material inside the furnace is heated, turn off the external power supply and current tester in the furnace body, fan and flue gas assembly in sequence, open the gate assembly at the other end, start the vehicle body, and drive the vehicle body out of the passage.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. The smoke exhaust mechanism in this application simply adds a dust removal component to filter the flue gas and a collection component to collect dust inside the existing smoke exhaust pipe. Compared with the traditional method of simply adding a large dust removal device (bag filter, electrostatic precipitator or a combination system of various dust removal devices), the smoke exhaust mechanism in this application is more compact and simple. Moreover, the smoke exhaust mechanism in this application is installed inside the existing smoke exhaust pipe, which does not require additional space. Therefore, compared with the prior art, the land occupied by this application is smaller. 2. The guide tube in this application is designed to be narrow in the middle and wide at both ends. When gas suddenly enters a wider channel from a relatively narrow channel, the gas flow velocity decreases. When the flue gas enters the anode tube from the guide tube, the flue gas flow velocity decreases, thus increasing the residence time of the flue gas in the anode tube. This greatly improves the adsorption effect of the anode tube on dust in the flue gas, thereby greatly improving the dust removal effect of the dust removal component on the flue gas. At the same time, the guide tube in this application, in conjunction with the sliding frame and the driving component, allows one end of the guide tube to slide into the anode tube. When the guide tube slides into the anode tube, it can scrape the dust adsorbed on the inner wall of the anode tube from the end of the anode tube away from the guide tube. Compared with the prior art, which uses knocking vibration or pulse technology to clean the anode tube, this application can remove all the dust on the inner wall of the anode tube in one go by scraping, thus making the dust removal component in this application have better cleaning effect and cleaning efficiency. 3. In this application, the guide tube is made conductive, and a non-conductive isolation tube is provided at the end of the guide tube near the anode tube. When the guide tube is not used for scraping and dust removal, it is not inserted into the anode tube, and the isolation tube is in contact with the anode tube. Therefore, at this time, the guide tube only serves to guide the flow and reduce the flow velocity of the flue gas in the anode tube. However, when it is necessary to clean the inner wall of the anode tube, the driving component drives the guide tube to insert into the anode tube. When the guide tube scrapes the dust on the inner wall of the anode tube, there will be a radial overlap between the guide tube and the anode tube. Therefore, the part of the anode tube overlapping with the guide tube cannot adsorb the dust in the flowing flue gas. Since the guide tube in this application is conductive, and when the guide tube is inserted into the anode tube, the outer wall of the guide tube will contact the inner wall of the anode tube. Therefore, the guide tube is energized at this time (equivalent to the anode tube). The guide tube then assumes the responsibility of the anode tube, adsorbing dust in the flowing flue gas. This ensures that even when the anode tube is unable to adsorb dust due to cleaning, the equipment can still adsorb dust in the flue gas, guaranteeing the continuous operation of the equipment. When the guide tube has finished cleaning the dust on the inner wall of the anode tube, the guide tube will return to its initial position under the action of the drive component. Due to the presence of the partition tube, the guide tube no longer acts as the anode tube, and it no longer has the adsorption force for dust. Therefore, the dust previously adsorbed on the inner wall of the guide tube will be blown off by the flow of flue gas and then enter the anode tube, so that the cleaned anode tube can re-adsorb the dust in the flue gas. 4. Because the inner wall area of ​​the guide tube is relatively smaller than that of the anode tube, when the guide tube slides into the anode tube (i.e., when the guide tube acts as the anode tube), the adsorption capacity of the entire equipment for dust in the flue gas decreases, that is, the filtration capacity for dust in the flue gas decreases. Therefore, before the drive unit moves, the control center will reduce the output power of the fan, and the flow speed of the flue gas in the exhaust pipe will be reduced, so that less flue gas flows through the guide tube per unit time, thereby ensuring that the amount of dust adsorbed by the guide tube does not exceed the bearing limit of the guide tube itself, and thus ensuring the dust removal capacity of the entire equipment in the flue gas. 5. The current tester is set to continuously monitor the current value in the circuit. When the detected current value does not exceed the preset value of the control center, it indicates that the amount of dust adsorbed on the inner wall of the anode tube has not yet reached its limit, so the anode tube does not need to be cleaned at this time. However, when the detected current value reaches the preset value of the control center, it indicates that the amount of dust on the inner wall of the anode tube is about to reach the limit that the anode tube can bear. At this time, after receiving the signal, the control center will immediately reduce the power of the fan and start the dust removal component to clean the anode tube. The start of the dust removal component in this application is determined according to whether the dust removal component has reached its limit in terms of the load of smoke and dust. Compared with the periodic operation of the traditional dust removal component, the dust removal component in this application will not perform ineffective work when it is not necessary to perform dust removal. Compared with the traditional dust removal component, the dust removal component in this application is more intelligent and reduces ineffective work. The equipment in this application is more energy-saving. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a schematic diagram of the overall structure of the dust removal component in Embodiment 1 of this application; Figure 3 This is a schematic diagram showing the connection between the dust removal component and the dust cleaning component in Embodiment 1 of this application; Figure 4 This is a schematic diagram of the flow guide plate in Embodiment 1 of this application; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the slider structure in Embodiment 1 of this application; In the diagram, 1. Furnace body; 11. Channel; 12. Gate assembly; 2. Track; 3. Car body; 4. Smoke exhaust mechanism; 41. Smoke exhaust pipe; 42. Fan; 43. Dust removal assembly; 431. Mounting pipe; 4311. Mounting groove; 432. Anode tube; 433. Mounting frame; 434. Cathode rod; 44. Collection assembly; 441. Collection pipe; 442. Collection box; 443. Filter membrane; 45. Ash removal assembly; 451. Sliding frame; 4511. Guide hole; 452. Guide pipe; 453. Drive component; 4531. Mounting block; 4532. Slide groove; 4533. Electric push rod; 4534. Slider; 454. Isolation tube; 455. Current tester. Detailed Implementation

[0017] The following combination Figure 1-6 This application will be described in further detail below. Example 1

[0018] A production equipment for manufacturing castings for automotive drive shafts, as described in the reference. Figure 1 It includes furnace body 1, car body 3 and exhaust mechanism 4.

[0019] In this embodiment, the furnace body 1 is rectangular and is fixedly installed on the ground. A channel 11 is provided on the furnace body 1 along its length, and the channel 11 runs through the entire furnace body 1 along its length. The channel 11 extends downward to the bottom of the furnace body 1. The furnace body 1 has two openings due to the arrangement of the channel 11. Two gate assemblies 12 are provided on the furnace body 1, which correspond one-to-one with the two openings. In this embodiment, the gate assembly 12 includes a gate and a hydraulic cylinder. The gate is slidably installed on the side wall of the furnace body 1 in the vertical direction. The hydraulic cylinder is installed on the furnace body 1, and the output shaft of the hydraulic cylinder is fixedly connected to the gate. In this embodiment, a track 2 is also laid on the ground. The track 2 is laid along the length of the channel 11 and runs through the channel 11.

[0020] In this embodiment, multiple vehicle bodies 3 can be provided, and multiple vehicle bodies 3 are arranged sequentially along the length direction of track 2. In this embodiment, only one vehicle body 3 is shown. In this embodiment, the driving device for driving the vehicle body 3 to slide in or out includes a motor, a chain gear set and a push plate. The chain gear set is installed on track 2, and the push plate is fixedly connected to the chain in the chain gear set. The push plate slides against the upper end surface of track 2. The motor is installed on track 2, and the output shaft of the motor is coaxially fixedly connected to the gear of the chain gear set. The rotation of the motor drives the gear in the chain gear set to rotate, thereby driving the chain to rotate. In turn, the chain drives the push plate to slide along the laying direction of track 2. During the sliding process, the push plate abuts against the vehicle body 3 and pushes the vehicle body 3 to move along the laying direction of track 2 (existing technology, which will not be described in detail here).

[0021] The vehicle body 3 can drive into and out of the channel 11. When the vehicle body 3 drives into the channel 11, the two sides of the vehicle body 3 along the driving direction will abut against the inner wall of the channel 11 on the furnace body 1. Then, the hydraulic cylinder drives the gate to descend, so that the lower end of the gate abuts against the upper end of the vehicle body 3. Therefore, the vehicle body 3, the channel 11 and the gate form a relatively sealed space. The material to be heated is located on the upper end of the vehicle body 3, that is, the material is in this sealed space, thereby minimizing the loss of heat in the furnace body 1 when the furnace body 1 heats the material on the vehicle body 3 (existing technology, which will not be elaborated on here).

[0022] Reference Figure 2 , Figure 3 and Figure 4 In this embodiment, the smoke exhaust mechanism 4 includes a smoke exhaust pipe 41 and a fan 42.

[0023] The exhaust pipe 41 is fixedly installed on the top of the furnace body 1 and is connected to the channel 11 of the furnace body 1. The fan 42 is coaxially fixedly installed inside the exhaust pipe 41. The exhaust pipe 41 is equipped with a dust removal component 43 to filter dust in the flue gas. The dust removal component 43 is installed between the fan 42 and the furnace body 1. The exhaust pipe 41 is also equipped with a dust collection component 44. When the furnace body 1 heats the material, the fan 42 draws the flue gas from the furnace body 1 into the exhaust pipe 41. The flue gas entering the exhaust pipe 41 first passes through the dust removal component 43, which filters out the dust in the flue gas. Then, the collection component 44 collects the dust filtered out by the dust removal component 43. The solid particle content in the filtered flue gas is reduced, meeting the emission standards, and then it is discharged from the furnace body 1 through the exhaust pipe 41. It should be noted that the furnace body 1 in this embodiment is also provided with a vent (not shown in the figure) that communicates with the channel 11, so as to realize the normal flow of gas in the furnace body 1.

[0024] Meanwhile, the dust removal component 43 in this embodiment is installed inside the exhaust pipe 41. Compared with traditional bag filters and electrostatic precipitators, the dust removal component 43 in this embodiment is smaller in size. Moreover, compared with installing a bag filter or electrostatic precipitator with a larger trapezoidal shape at the end of the exhaust pipe 41, the dust removal component 43 in this embodiment is installed inside the exhaust pipe 41, which occupies almost no extra space. Therefore, the total volume of the production equipment in this embodiment is much smaller than that of traditional equipment, thus occupying less land area and consuming less land resources.

[0025] In this embodiment, the dust removal component 43 includes an installation pipe 431.

[0026] In this embodiment, the mounting tube 431 is coaxially fixedly installed on the inner wall of the exhaust pipe 41 in the horizontal direction. The outer peripheral wall of the mounting tube 431 contacts the inner peripheral wall of the exhaust pipe 41. Multiple mounting grooves 4311 are formed on the mounting tube 431 along its own axial direction, and all mounting grooves 4311 are arranged through the mounting tube 431 along its axial direction. The mounting grooves 4311 are arranged in a circular array at one end of the mounting tube 431. An anode tube 432 is coaxially fixedly installed in each mounting groove 4311. The outer peripheral wall of the anode tube 432 abuts against the groove wall of the mounting groove 4311, and the length of the anode tube 432 is equal to the length of the mounting groove 4311. Each anode tube 432 is electrically connected to the negative terminal of an external power supply via a wire. Each anode tube 432 is connected in parallel via wires. A mounting bracket 433 is also provided on the side of the mounting pipe 431 near the fan 42. The mounting bracket 433 is coaxially fixedly installed on the inner wall of the exhaust pipe 41. The mounting bracket 433 is hollow. Multiple cathode rods 434 are fixedly connected to the mounting bracket 433. Each cathode rod 434 corresponds to one anode tube 432. The cathode rods 434 are coaxially located inside the anode tube 432 and do not abut against the inner wall of the anode tube 432. Each cathode rod 434 is electrically connected to the positive terminal of an external power supply via wires. Multiple cathode rods 434 are connected in parallel via wires. A dust removal component 45 is also provided inside the exhaust pipe 41 to remove dust from the inner wall of the anode tube 432.

[0027] It should be noted that in this embodiment, all the wires connected to the anode tube 432 are located inside the wall of the mounting tube 431, and then pass through the wall of the mounting tube 431 and the exhaust pipe 41 to connect to the external power supply. In addition, each anode tube 432 is also connected to an additional grounding wire. Similarly, all the wires connected to the cathode rod 434 are located inside the mounting frame 433, and then pass through the wall of the exhaust pipe 41 to connect to the external power supply. In this embodiment, the mounting tube 431 and the mounting frame 433 are both made of ceramic material. Therefore, the mounting tube 431 and the mounting frame 433 in this embodiment have certain insulation and high temperature resistance.

[0028] Before starting the fan 42, the external power supply is turned on. After the external power supply is turned on, the strong electric field near the cathode rod 434 causes the surrounding gas molecules to ionize, generating a large number of free electrons and positive and negative ions (corona discharge phenomenon). Since the discharge electrode (cathode rod 434) is negatively charged, the free electrons and negative ions will move towards the dust collection electrode (anode tube 432). When the dust-laden gas passes through the electric field, the particles collide with the free electrons or negative ions, the particles capture the charge and become negatively charged, and the charged particles are subjected to the Coulomb force in the electric field and accelerate towards the dust collection electrode (anode tube 432). The particles are finally adsorbed on the inner wall surface of the anode tube 432 to form a dust layer. Therefore, when the blower 42 is started, it draws the flue gas from the furnace body 1 into the exhaust pipe 41. As the flue gas continues to flow in the exhaust pipe 41, it enters each anode tube 432. When the flue gas enters the anode tube 432, due to the strong electric field between the cathode rod 434 and the anode tube 432, a large number of free electrons and positive and negative ions exist between them. Dust particles in the flue gas collide with the free electrons or negative ions in the anode tube 432. After the collision, the dust particles capture the charge, thus becoming negatively charged. Dust particles are subjected to Coulomb force when they are in an electric field, causing them to move along the direction close to the inner wall of the anode tube 432 and eventually adsorb onto the inner wall of the anode tube 432. Thus, the dust in the flue gas is cleaned out, thereby achieving the effect of filtering dust in the flue gas. After a certain amount of dust has been adsorbed onto the inner wall of the anode tube 432, the dust removal component 45 will remove the dust from the inner wall of the anode tube 432 and collect the dust removed from the anode tube 432 through the collection component 44. After the dust on the anode tube 432 is cleaned, it will regain its ability to adsorb dust particles in the flue gas.

[0029] The cleaning component in this embodiment includes a sliding frame 451.

[0030] In this embodiment, the sliding frame 451 is annular and is coaxially slidably mounted on the inner wall of the flue pipe 41. The peripheral wall of the sliding frame 451 slidably abuts against the inner wall of the flue pipe 41. The sliding frame 451 is located on the side of the mounting pipe 431 that is relatively close to the furnace body 1. The sliding frame 451 has multiple guide holes 4511, each corresponding to a plurality of anode tubes 432. The guide holes 4511 and the anode tubes 432 are arranged coaxially. A guide tube 452 is coaxially arranged between 432. One end of the guide tube 452 is fixedly connected to the inner wall of the guide hole 4511, and the other end of the guide tube 452 is slidably inserted into the anode tube 432. The outer peripheral wall of the guide tube 452 slides against the inner peripheral wall of the anode tube 432. A drive component 453 is provided on the exhaust pipe 41 to drive the sliding frame 451 to move axially. Similarly, the sliding frame 451 in this embodiment is also made of ceramic material, so it also has a certain degree of insulation and high temperature resistance.

[0031] In this embodiment, the material of the guide tube 452 and the anode tube 432 is the same material, both of which are conductive. The end of the guide tube 452 near the anode tube 432 is coaxially connected to the isolation tube 454. In this embodiment, the isolation tube 454 is also made of non-conductive ceramic material. The diameter of the isolation tube 454 is the same as the diameter of the end of the guide tube 452 near the anode tube 432. When the guide tube 452 is located at the position furthest from the anode tube 432, the outer peripheral wall of the isolation tube 454 is in contact with the inner peripheral wall of the anode tube 432, and the guide tube 452 does not contact the anode tube 432. When the guide tube 452 is slidably inserted into the anode tube 432, the guide tube 452 contacts the anode tube 432, and the guide tube 452 is conductive. The diameters of the holes at both ends of the guide tube 452 are larger than the diameter of the hole in the middle of the guide tube 452, and the hole wall of the middle section of the guide tube 452 does not contact the cathode rod 434 and the anode tube 432.

[0032] When it is necessary to clean the dust on the inner wall of the anode tube 432, the drive unit 453 is activated. The drive unit 453 drives the sliding frame 451, the guide tube 452, and the partition tube 454 to move in the direction close to the anode tube 432. Since the diameter of the partition tube 454 is the same as the diameter of the end of the guide tube 452 near the anode tube 432, the outer wall of the partition tube 454 also abuts against the inner circumferential wall of the anode tube 432. Therefore, when the drive unit moves in the direction close to the anode tube 432, the partition tube 454 and the guide tube 452 slide into the anode tube 432, and because the partition tube 454... The outer tube wall also abuts against the inner peripheral wall of the anode tube 432. The partition tube 454 will scrape the dust off the inner wall of the anode tube 432 and push the dust off the inner wall of the anode tube 432 away from the sliding frame 451 until the partition tube 454 moves to the end of the anode tube 432 away from the sliding frame 451. At this point, all the dust on the inner wall of the anode tube 432 will be pushed to the outside of the anode tube 432, thus realizing the cleaning of the inner wall of the anode tube 432. After the dust on the inner wall of the anode tube 432 is removed from the anode tube 432, the collecting component 44 will collect the dust that has been pushed out of the anode tube 432.

[0033] Meanwhile, in this embodiment, the guide tube 452 is designed to be narrow in the middle and wide at both ends. When gas suddenly enters the wider channel 11 from the relatively narrow channel 11, the gas flow velocity decreases. Therefore, when the flue gas enters the anode tube 432 from the guide tube 452, the flow velocity of the flue gas decreases, thus increasing the residence time of the flue gas in the anode tube 432. This increases the contact time between the dust particles in the flue gas and the charges in the anode tube 432, thereby increasing the probability of the dust particles capturing the charges. Furthermore, the reduced flow velocity of the flue gas in the anode tube 432 also reduces the velocity of the dust particles, thus reducing their momentum. Consequently, the probability of the dust particles escaping the Coulomb force in the electric field within the anode tube 432 decreases, making it easier for the dust particles to adhere to the inner wall of the anode tube 432. This significantly improves the adhesion of the anode tube 432 to the flue gas. The dust filtration effect is improved, thus greatly enhancing the dust removal effect of the dust removal component 43 on the flue gas. In addition, the use of the guide pipe 452 in this embodiment, together with the sliding frame 451 and the driving component 453, allows one end of the guide pipe 452 to slide into the anode tube 432. When the guide pipe 452 slides into the anode tube 432, the partition pipe 454 on one side of the guide pipe 452 can scrape the dust adsorbed on the inner wall of the anode tube 432 from the end of the anode tube 432 away from the guide pipe 452. Compared with the prior art, which uses knocking vibration or pulse technology to clean the dust on the anode tube 432 layer by layer, the dust on the inner wall of the anode tube 432 can be completely scraped off at one time by scraping in this application, so that the dust removal component 45 in this application has a better cleaning effect and cleaning efficiency.

[0034] Reference Figure 4 and Figure 5 More importantly, in this embodiment, the guide tube 452 is made conductive, and a non-conductive isolation tube 454 is provided at the end of the guide tube 452 near the anode tube 432. When the guide tube 452 is not performing scraping and dust removal, the guide tube 452 is not inserted into the anode tube 432, and the isolation tube 454 is in contact with the anode tube 432. Therefore, at this time, the guide tube 452 only serves to guide the flow and reduce the flow velocity of the smoke and dust in the anode tube 432. However, when it is necessary to clean the inner wall of the anode tube 432, the driving component... 453 drives the guide tube 452 and the isolation tube 454 to be inserted into the anode tube 432. When the isolation tube 454 scrapes the dust off the inner wall of the anode tube 432, there will be a radial overlap between the guide tube 452 and the anode tube 432. Therefore, the part of the anode tube 432 that overlaps with the guide tube 452 cannot adsorb the dust in the flowing flue gas. Since the guide tube 452 in this application is conductive, and when the guide tube 452 is inserted into the anode tube 432, the outer wall of the guide tube 452 will be in contact with the anode tube 432. The inner wall is in contact, therefore the guide tube 452 is energized at this time (equivalent to the anode tube 432); at this time, the guide tube 452 takes over the responsibility of the anode tube 432, thereby adsorbing dust in the flowing flue gas. This ensures that even when the anode tube 432 is unable to adsorb dust due to cleaning operations, this equipment can still adsorb dust in the flue gas, guaranteeing the continuous operation of the equipment. Furthermore, when the guide tube 452 has finished cleaning the dust on the inner wall of the anode tube 432, the guide tube 452 is in contact with the drive component 4. Under the action of 53, it will return to its initial position. Due to the presence of the isolation tube 454, the guide tube 452 is separated from the anode tube 432. No current will appear on the guide tube 452. Therefore, the guide tube 452 no longer serves as the anode tube 432, and the guide tube 452 no longer has the adsorption force for dust. Therefore, the dust previously adsorbed on the inner wall of the guide tube 452 will also be blown off by the flow of flue gas and then enter the anode tube 432 so that the anode tube 432, after being cleaned, can re-adsorb the dust in the flue gas.

[0035] In summary, when cleaning of the anode tube 432 is not required, the guide tube 452 is in its initial position and does not contact the anode tube 432. The isolation tube 454 is in contact with the anode tube 432, and since the isolation tube 454 is non-conductive, there is no current in the guide tube 452. At this time, the guide tube 452 only serves to guide the flue gas in the exhaust pipe 41 and reduce the flow velocity of dust in the anode tube 432. When cleaning of the anode is required, the guide tube 452 will be inserted into the anode tube 432 and contact it under the action of the driving component 453. At this time, the guide tube 452 can perform the function of the anode tube 432, adsorbing the dust in the flue gas passing through the guide tube 452. This solves the problem that the anode tube 432 cannot adsorb dust particles due to cleaning work, thus ensuring the continuous operation of the equipment and greatly improving the stability of the equipment.

[0036] Secondly, refer to Figure 2 , Figure 4 and Figure 6 In this embodiment, the driving component 453 includes a mounting block 4531, a slider 4534, and an electric push rod 4533.

[0037] Mounting block 4531 is fixedly installed on the outer wall of exhaust pipe 41. The interior of mounting block 4531 is provided with a sliding groove 4532 along the axial direction of exhaust pipe 41. The sliding groove 4532 penetrates the pipe wall of exhaust pipe 41 radially. Slider 4534 slides in the sliding groove 4532 along the axial direction of exhaust pipe 41. The lower end face of slider 4534 is fixedly connected to sliding frame 451. Electric push rod 4533 is fixedly installed in the sliding groove 4532. The output shaft of electric push rod 4533 is fixedly connected to slider 4534.

[0038] Reference Figure 1 and Figure 2 It should be noted that in this embodiment, the multiple wires connected to the cathode rod 434 are all connected to a bus (not shown in the figure). The end of the bus away from the cathode rod 434 is connected to the positive terminal of the external power supply. A current tester 455 is also provided on the bus. The current tester 455 is electrically connected to the control center. In this embodiment, the fan 42 and the electric push rod 4533 are also electrically connected to the control center.

[0039] The current tester 455 can detect the current value in the circuit at all times. When the detected current value does not exceed the preset value of the control center, it means that the amount of dust adsorbed on the inner wall of the anode tube 432 has not yet reached its limit, so the anode tube 432 does not need to be cleaned at this time. When the detected current value reaches the preset value of the control center, it means that the amount of dust on the inner wall of the anode tube 432 is about to reach the limit that the anode tube 432 can bear. At this time, after receiving the signal, the control center will immediately reduce the power of the fan 42 (reduce the flow speed of the flue gas in the exhaust pipe 41) and start the dust removal component 43 to clean the anode tube 432. The start of the dust removal component 45 in this embodiment is determined according to whether the load of the dust removal component 43 on the flue gas has reached its limit. Compared with the traditional dust removal component 45, which works periodically, the dust removal component 45 in this application will not work ineffectively when it is not necessary to clean. Compared with the traditional dust removal component 45, the dust removal component 45 in this application is more intelligent and reduces ineffective work. The device in this application is more energy-saving.

[0040] Finally, the collection component 44 in this embodiment includes a collection pipe 441 and a collection box 442. The collection pipe 441 is connected to the exhaust pipe 41, and the collection box 442 is located below the exhaust pipe 41. The collection pipe 441 is arranged vertically, and the end of the collection pipe 441 away from the exhaust pipe 41 is connected to the collection box 442. The connection between the collection pipe 441 and the exhaust pipe 41 is located between the fan 42 and the mounting pipe 431.

[0041] When the partition tube 454 and the guide tube 452 are slidably inserted into the anode tube 432, some of the dust inside the anode tube 432 begins to be squeezed out of the anode tube 432. The squeezed-out dust will accumulate due to the pushing force of the partition tube 454. The accumulated dust has a certain mass. Therefore, after the dust is squeezed out of the anode tube 432, the dust will fall into the collection tube 441 under the action of gravity, and then fall into the collection box 442 along the collection tube 441, thereby realizing the dust collection work.

[0042] Meanwhile, a filter membrane 443 is coaxially installed inside the exhaust pipe 41. In this embodiment, the filter membrane 443 is made of stainless steel fiber felt, which allows gas to pass through but does not allow solid particles to pass through, and has a certain degree of elasticity and strength. The filter membrane 443 is installed at the connection between the collection pipe 441 and the exhaust pipe 41, and the filter membrane 443 is relatively close to the fan 42. The end of the filter membrane 443 away from the fan 42 faces the anode tube 432. In this embodiment, the filter membrane 443 can filter a small portion of dust that has not been adsorbed by the anode tube 432, thereby further improving the overall dust filtration effect of the entire device; in addition, this embodiment In this embodiment, the filter membrane 443 faces the anode tube 432. The gas coming out of the anode tube 432 can continuously impact the filter membrane 443. This gas can not only blow off a small amount of dust adhering to the filter membrane 443, but also keep the filter membrane 443 in a shaking state due to the continuous impact of the gas. This allows the dust on the filter membrane 443 to be shaken off, and the shaken-off dust can fall directly into the collection tube 441. Therefore, there is no need to add an additional part for cleaning the filter membrane 443. Thus, the filtration effect of dust in the flue gas is further improved without adding any additional complex parts. Example 2

[0043] A manufacturing process for producing castings for automotive drive shafts, based on the aforementioned production equipment for producing castings for automotive drive shafts, includes the following steps: S1: Place the material on the vehicle body 3 and open the gate assembly 12 at one end of the furnace body 1; S2: Start the car body 3, allowing it to enter the furnace body 1 channel 11 along the track 2, and close the opened gate assembly 12. The furnace body 1, gate assembly 12, and car body 3 form a relatively enclosed space. S3: Start the fan 42, the external power supply and current tester 455 in the smoke exhaust assembly, and then start the furnace body 1. The furnace body 1 starts to heat the material on the car body 3. The fan 42 draws the flue gas in the furnace body 1 into the smoke exhaust pipe 41. The dust in the flue gas is adsorbed on the inner wall of the anode tube 432 when it passes through the anode tube 432. S4: When the current tester 455 detects that the current has dropped to the preset value, the drive unit 453 is activated to drive the sliding frame 451 to move along the direction close to the mounting frame 433. The guide tube 452 slides into the anode tube 432 and scrapes the dust on the inner wall of the anode tube 432 from the end close to the mounting frame 433. After the dust in the anode tube 432 is scraped out, it falls from the collection tube 441 into the collection box 442. At this time, the guide tube 452 acts as the anode tube 432 to continue to adsorb the dust in the flue gas. S5: After the dust in the anode tube 432 is cleaned, the drive unit 453 drives the sliding frame 451 to move back, and the guide tube 452 moves back to the initial position. There is no current in the guide tube 452, so the dust on the inner wall of the guide tube 452 is no longer subject to electrostatic adsorption force, and is carried into the anode tube 432 that has been cleaned with the flow of flue gas. The anode tube 432 re-adsorbs the dust in the flue gas, and then repeats the above operations S4 and S5. S6: After the material in the furnace body 1 has been heated, turn off the external power supply and current tester 455 in the furnace body 1, fan 42, and smoke exhaust assembly in sequence, open the gate assembly 12 at the other end, start the vehicle body 3, and make the vehicle body 3 drive out of the passage 11.

[0044] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A production equipment for manufacturing castings for automotive drive shafts, characterized in that, include: The furnace body (1) has a channel (11) extending horizontally through it. A track (2) is laid on the ground. The track (2) is laid along the direction of the channel (11). A gate assembly (12) is also provided at the opening of the channel (11) on the furnace body (1) to control the opening and closing of the channel (11). Multiple car bodies (3) are arranged sequentially along the length of the track (2). Each car body (3) can move back and forth along the track (2). Each car body (3) is equipped with a drive device to drive the car body (3) to move. The exhaust mechanism (4) includes an exhaust pipe (41) installed on the furnace body (1) and a fan (42) installed in the exhaust pipe (41). The exhaust pipe (41) is also equipped with a dust removal component (43) for filtering the flue gas. The dust removal component (43) is located between the fan (42) and the furnace body (1). The exhaust pipe (41) is also connected to a collection component (44) for collecting dust.

2. The production equipment for producing castings for automobile drive shafts according to claim 1, characterized in that, The dust removal component (43) includes an installation tube (431), which is coaxially fixedly installed on the inner wall of the exhaust pipe (41). The installation tube (431) has multiple arrayed installation slots (4311) along its own axis. Each installation slot (4311) is coaxially provided with an anode tube (432). The inner wall of the exhaust pipe (41) is also provided with an installation frame (433), which is provided with multiple cathode rods (434). The multiple cathode rods (434) correspond one-to-one with the multiple anode tubes (432), and the cathode rods (434) are coaxially inserted into the interior of the anode tubes (432). The cathode rods (434) do not contact the anode tubes (432). The exhaust pipe (41) is also provided with a dust removal component (45) for cleaning the inner wall of the anode tubes (432). The installation frame (433) is non-conductive.

3. The production equipment for producing castings for automotive drive shafts according to claim 2, characterized in that, The ash removal assembly (45) includes a sliding frame (451), which is coaxially slidably mounted on the inner wall of the flue pipe (41). The sliding frame (451) is located on the side of the mounting pipe (431) that is relatively close to the furnace body (1). The sliding frame (451) has multiple guide holes (4511), and the multiple guide holes (4511) correspond one-to-one with multiple anode tubes (432). The guide holes (4511) and the anode tubes (432) are arranged coaxially. A guide tube (452) is coaxially arranged between the anode tube (432) and the anode tube (511). One end of the guide tube (452) is fixedly connected to the inner wall of the guide hole (4511), and the other end of the guide tube (452) is slidably inserted into the anode tube (432). The outer peripheral wall of the guide tube (452) slides against the inner peripheral wall of the anode tube (432). A drive member (453) for driving the sliding frame (451) to move axially is provided on the exhaust pipe (41). The sliding frame (451) is non-conductive.

4. The production equipment for producing castings for automotive drive shafts according to claim 3, characterized in that, The guide tube (452) is coaxially connected to a partition tube (454) at one end near the anode tube (432). The diameter of the partition tube (454) is the same as the diameter of the end of the guide tube (452) near the anode tube (432). When the guide tube (452) is located at the position furthest from the anode tube (432), the partition tube (454) is in contact with the anode tube (432), and the guide tube (452) is not in contact with the anode tube (432). When the guide tube (452) is slidably inserted into the anode tube (432), the guide tube (452) contacts the anode tube (432), the guide tube (452) is able to conduct electricity, and the diameter of the holes at both ends of the guide tube (452) is larger than the diameter of the hole in the middle of the guide tube (452), and the hole wall of the middle section of the guide tube (452) does not contact the cathode rod (434) and the anode tube (432).

5. A production equipment for producing castings for automotive drive shafts according to claim 4, characterized in that, Both the fan (42) and the drive unit (453) are electrically connected to the control center. When the drive unit (453) drives the sliding frame (451) to move in the direction close to the mounting pipe (431), the speed of the fan (42) gradually decreases. Conversely, the speed of the fan (42) gradually increases.

6. A production equipment for producing castings for automotive drive shafts according to claim 3, characterized in that, The mounting bracket (433) has multiple wires inside, each corresponding to a cathode rod (434). One end of the wire is electrically connected to the cathode rod (434), and the other end is connected to the bus. The bus is connected to an external power source. A current tester (455) is also installed on the bus, and the current tester (455) is electrically connected to the control center.

7. A production equipment for producing castings for automotive drive shafts according to claim 2, characterized in that, The collection assembly (44) includes a collection pipe (441) and a collection box (442). The collection pipe (441) is connected to the exhaust pipe (41). The collection box (442) is located below the exhaust pipe (41). The collection pipe (441) is arranged vertically, and one end of the collection pipe (441) away from the exhaust pipe (41) is connected to the collection box (442). The connection between the collection pipe (441) and the exhaust pipe (41) is located between the fan (42) and the mounting pipe (431).

8. A production equipment for producing castings for automotive drive shafts according to claim 6, characterized in that, A filter membrane (443) is also coaxially installed inside the exhaust pipe (41). The filter membrane (443) allows gas to pass through but does not allow particles to pass through. The filter membrane (443) is installed at the connection between the collection pipe (441) and the exhaust pipe (41), and the filter membrane (443) is relatively close to the fan (42).

9. A manufacturing process for producing castings for automotive drive shafts, based on the manufacturing equipment for producing castings for automotive drive shafts according to any one of claims 1-8, comprising the following steps: S1: Place the material on the vehicle body (3) and open the gate assembly (12) at one end of the furnace body (1); S2: Start the car body (3) so that the car body (3) enters the furnace body (1) channel (11) along the track (2), and close the opened gate assembly (12). The furnace body (1), the gate assembly (12) and the car body (3) form a relatively closed space. S3: Start the fan (42), the external power supply and current tester (455) in the smoke exhaust assembly, and then start the furnace body (1). The furnace body (1) begins to heat the material on the car body (3). The fan (42) draws the flue gas in the furnace body (1) into the smoke exhaust pipe (41). The dust in the flue gas is adsorbed on the inner wall of the anode tube (432) when it passes through the anode tube (432). S4: When the current tester (455) detects that the current has dropped to the preset value, the drive unit (453) is activated to drive the sliding frame (451) to move in the direction close to the mounting frame (433). The guide tube (452) slides into the anode tube (432) and scrapes the dust on the inner wall of the anode tube (432) from the end close to the mounting frame (433). After being scraped out, the dust in the anode tube (432) falls from the collection tube (441) into the collection box (442). At this time, the guide tube (452) acts as the anode tube (432) to continue to adsorb the dust in the flue gas. S5: After the dust in the anode tube (432) is cleaned, the drive unit (453) drives the sliding frame (451) to move back, and the guide tube (452) moves back to the initial position. There is no current in the guide tube (452), so the dust on the inner wall of the guide tube (452) is no longer subject to electrostatic adsorption force, and is carried into the anode tube (432) that has been cleaned with the flow of flue gas. The anode tube (432) re-adsorbs the dust in the flue gas, and then repeats the above operations S4 and S5. S6: After the material in the furnace body (1) has been heated, turn off the external power supply and current tester (455) in the furnace body (1), fan (42), and smoke exhaust assembly in sequence, open the gate assembly (12) at the other end, start the vehicle body (3), and make the vehicle body (3) drive out of the passage (11).

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