A production plant and a production process for producing a casting for a motor vehicle propeller shaft

Abstract

The application relates to a production device and a production process for producing a casting for an automobile transmission shaft, and relates to the technical field of casting. The device comprises a furnace body, a plurality of vehicle bodies and a smoke exhaust mechanism. The furnace body is provided with a passage in the horizontal direction. A track is arranged on the ground along the direction in which the passage is arranged. A gate assembly is arranged at the opening of the passage on the furnace body. The plurality of vehicle bodies are arranged along the length direction of the track. Each vehicle body can reciprocate along the track. 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 arranged in the smoke exhaust pipe. The dust removal assembly is located between the fan and the furnace body. A collection assembly for collecting dust is further connected to the smoke exhaust pipe. In the application, the smoke exhaust mechanism is installed in the existing smoke exhaust pipe, and no additional space is occupied, so that the application occupies less land resources compared with the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of casting, in particular to a production equipment and production process for producing a casting for an automobile transmission shaft. BACKGROUND

[0002] In the investment casting (water glass shell process), after the mold group completes the dewaxing process, the residual wax and moisture need to be completely burned out by high temperature in the baking furnace to avoid air holes or defects during subsequent metal pouring. At the same time, high temperature sintering makes the unreacted sodium silicate in the shell further dehydrate and sinter to form a more stable silicon-oxygen bond network, improving the thermal shock resistance and deformation resistance of the shell during re-pouring to withstand the impact of high-temperature metal liquid (such as steel, cast iron).

[0003] The baking furnace in the prior art generally includes a furnace body, a track and a car body, the furnace body is provided with a passage for the track to pass through, the car body moves along the track and can slide into the passage of the furnace body, the wax mold of the transmission shaft is placed on the car body after being wrapped by the ceramic shell, and the car body enters the passage, the furnace body starts to heat the materials on the car body, the furnace body has a gate on both sides for sealing, and the furnace body is also provided with a smoke exhaust mechanism for discharging smoke.

[0004] However, the existing smoke exhaust mechanism includes dust removal devices such as bag dust collectors and electrostatic precipitators, which have a large volume, greatly increasing the volume of the overall production equipment, and thus causing a large consumption of land resources. SUMMARY

[0005] The purpose of the present application is to provide a production equipment for producing a casting for an automobile transmission shaft, which has a relatively small volume and reduces the consumption of land resources by the equipment.

[0006] In a first aspect, the production equipment for producing a casting for an automobile transmission shaft provided by the present application adopts the following technical solution:

[0007] A furnace body is provided with a passage along the horizontal direction, a track is laid on the ground, the track is arranged along the direction in which the passage is opened, and a gate assembly is arranged at the opening of the passage of the furnace body to control the opening and closing of the passage;

[0008] A plurality of car bodies are arranged in sequence along the length direction of the track, each car body can move back and forth along the track, and each car body is provided with a driving device for driving the car body to move;

[0009] A smoke exhaust mechanism includes 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 fan and the furnace body, and a collection assembly for collecting dust is further connected to the smoke exhaust pipe.

[0010] Optionally, the dust removal assembly comprises a mounting pipe coaxially fixedly mounted on the inner wall of the smoke exhaust pipe, a plurality of mounting grooves are formed on the mounting pipe along the self-axis direction, and an anode pipe is coaxially arranged in each mounting groove; a mounting rack is further arranged on the inner wall of the smoke exhaust pipe, a plurality of cathode rods are arranged on the mounting rack, the plurality of cathode rods correspond to the plurality of anode pipes in a one-to-one manner, the cathode rods are coaxially inserted into the anode pipes, the cathode rods are not in contact with the anode pipes, and a dust removal assembly for removing dust on the inner wall of the anode pipe is further arranged in the smoke exhaust pipe.

[0011] Optionally, the dust removal assembly comprises a sliding rack coaxially and slidingly mounted on the inner wall of the smoke exhaust pipe, the sliding rack is located on the side of the mounting pipe close to the furnace body, a plurality of flow guide holes are formed on the sliding rack, the plurality of flow guide holes correspond to the plurality of anode pipes in a one-to-one manner, and the flow guide holes are coaxially arranged with the anode pipes; a flow guide pipe is coaxially arranged between the flow guide hole and the anode pipe, one end of the flow guide pipe is fixedly connected to the inner wall of the flow guide hole, the other end of the flow guide pipe is slidingly inserted into the anode pipe, and the outer peripheral wall of the flow guide pipe slidingly abuts against the inner peripheral wall of the anode pipe; a driving member for driving the sliding rack to move axially is arranged on the smoke exhaust pipe, and the sliding rack is not electrically conductive.

[0012] Optionally, one end of the flow guide pipe close to the anode pipe is coaxially connected with a partition pipe, the diameter of the partition pipe is the same as that of the end of the flow guide pipe close to the anode pipe, when the flow guide pipe is located at a position farthest away from the anode pipe, the partition pipe is in contact with the anode pipe, and the flow guide pipe is not in contact with the anode pipe; when the flow guide pipe is slidingly inserted into the anode pipe, the flow guide pipe is in contact with the anode pipe, the flow guide pipe can conduct electricity, the hole diameters of the two ends of the flow guide pipe are greater than that of the middle section of the flow guide pipe, and the hole wall of the middle section of the flow guide pipe is not in contact with the cathode rod and the anode pipe.

[0013] Optionally, the fan and the driving member are electrically connected with the control center, when the driving member drives the sliding rack to move in the direction close to the mounting pipe, the rotating speed of the fan gradually decreases, and vice versa.

[0014] Optionally, a plurality of electric wires are arranged in the mounting rack, the plurality of electric wires correspond to the plurality of cathode rods in a one-to-one manner, one end of each electric wire is electrically connected with a cathode rod, the other end of each electric wire is connected with a bus, the bus is connected with an external power supply, a current tester is further arranged on the bus, and the current tester is electrically connected with the control center.

[0015] Optionally, the collecting assembly comprises a collecting pipe and a collecting box, the collecting pipe is communicated with the smoke exhaust pipe, the collecting box is located below the smoke exhaust pipe, the collecting pipe is arranged in a vertical direction, and an end of the collecting pipe away from the smoke exhaust pipe is communicated with the collecting box, and the communication position of the collecting pipe and the smoke exhaust pipe is located between the fan and the mounting pipe.

[0016] Optionally, a filter film is coaxially installed in the smoke exhaust pipe, the filter film allows gas to pass through but does not allow object particles to pass through, the filter film is installed at the communication position of the collecting pipe and the smoke exhaust pipe, and the filter film is relatively close to the fan.

[0017] In a second aspect, the application provides a production process for producing a cast for an automobile transmission shaft, comprising the following steps:

[0018] S1: placing the material on the vehicle body, and opening the gate assembly at one end of the furnace body;

[0019] S2: starting the vehicle body to make the vehicle body enter the furnace passage along the track, closing the opened gate assembly, and forming a relatively closed space by the furnace body, the gate assembly and the vehicle body;

[0020] S3: starting the fan, the external power supply in the smoke exhaust assembly and the current tester, and then starting the furnace body to heat the material on the vehicle body, the fan inhales the flue gas in the furnace body into the smoke exhaust pipe, and the dust in the flue gas dust is adsorbed on the inner wall of the anode pipe;

[0021] S4: when the current tester detects that the current decreases to a preset value, the driving member is started to drive the sliding frame to move in the direction close to the mounting frame, the flow guide pipe is slidably inserted into the anode pipe, and the dust on the inner wall of the anode pipe is scraped from one end close to the mounting frame, the dust in the anode pipe falls into the collecting box from the collecting pipe after being scraped, and the flow guide pipe continues to adsorb the dust in the flue gas as the anode pipe;

[0022] S5: after the dust in the anode pipe is cleaned, the driving member drives the sliding frame to move back, the flow guide pipe moves back to the initial position, there is no current on the flow guide pipe, so that the dust on the inner wall of the flow guide pipe is no longer subjected to the electrostatic adsorption force, and is brought into the anode pipe which has been cleaned into the anode pipe along with the flow of the flue gas, and the anode pipe re-adsorbs the dust in the flue gas;

[0023] S6: then repeat the operations of S4 and S5;

[0024] S7: after the material in the furnace body is heated, the furnace body, the fan, the external power supply in the smoke exhaust assembly and the current tester are sequentially closed, the gate assembly at the other end is opened, the vehicle body is started, and the vehicle body drives out of the passage.

[0025] To sum up, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The smoke exhaust mechanism in the present application only increases the dust removal assembly for filtering flue gas and the collection assembly for collecting dust in the existing smoke exhaust pipe. Compared with the traditional way of simply increasing a large dust removal device (bag dust collector, electrostatic precipitator or various dust removal device combination system), the smoke exhaust mechanism in the present application is more compact and simple. The smoke exhaust mechanism in the present application is installed inside the existing smoke exhaust pipe, which does not need to occupy additional space. Therefore, compared with the prior art, the present application occupies less land.

[0027] 2. The flow guide pipe in the present application is arranged in a shape of narrow in the middle and wide at both ends. When the gas suddenly enters the wider channel from the relatively narrower channel, the flow speed of the gas will decrease. When the flue gas enters the anode pipe from the flow guide pipe, the flow speed of the flue gas will decrease, so the residence time of the flue gas in the anode pipe increases, thereby greatly improving the adsorption effect of the anode pipe on the dust in the flue gas, and further greatly improving the dust removal effect of the dust removal assembly on the dust in the flue gas. At the same time, the flow guide pipe in the present application cooperates with the use of the sliding frame and the driving piece. One end of the flow guide pipe can be slidably inserted into the anode pipe. When the flow guide pipe is slidably inserted into the anode pipe, the flow guide pipe can scrape the dust adsorbed on the inner wall of the anode pipe from the end of the anode pipe away from the flow guide pipe. Compared with the existing technology of knocking, vibrating or pulse technology to realize the dust removal work of the anode pipe, the present application can scrape all the dust on the inner wall of the anode pipe at one time by scraping, thereby making the dust removal assembly in the present application have better cleaning effect and cleaning efficiency.

[0028] 3. The flow guide pipe in the application is set to be conductive, and the end of the flow guide pipe close to the anode pipe is provided with a non-conductive partition pipe. When the flow guide pipe does not perform the soot removal work, the flow guide pipe is not inserted into the anode pipe, and the partition pipe contacts the anode pipe, so that the flow guide pipe only plays a role of guiding flow and reducing the flow speed of the smoke dust in the anode pipe at this time. When it is necessary to remove the soot on the inner wall of the anode pipe, the driving member drives the flow guide pipe to be inserted into the anode pipe. When the flow guide pipe scrapes the soot on the inner wall of the anode pipe, there is an overlapping part between the flow guide pipe and the anode pipe in the radial direction, so that the anode pipe overlapping with the flow guide pipe cannot adsorb the dust in the flowing smoke. Since the flow guide pipe in the application is conductive, and the outer wall of the flow guide pipe contacts the inner wall of the anode pipe when the flow guide pipe is inserted into the anode pipe, the flow guide pipe is in an electrified state (equivalent to the anode pipe) at this time. The flow guide pipe at this time bears the responsibility of the anode pipe, thereby adsorbing the dust in the flowing smoke, so that the device can still adsorb the dust in the smoke when the anode pipe cannot adsorb the dust due to the soot removal work, thereby ensuring the continuity of the work of the device. When the flow guide pipe finishes cleaning the soot on the inner wall of the anode pipe, the flow guide pipe will move back to the initial position under the action of the driving member. Since the partition pipe exists, the flow guide pipe no longer bears the work of the anode pipe, and the flow guide pipe no longer has the adsorption force for the dust, so that the dust adsorbed on the inner wall of the flow guide pipe will also fall under the flow of the smoke and then enter the anode pipe, so that the anode pipe can re-adsorb the dust in the smoke after the soot removal;

[0029] 4. Since the inner wall area of the flow guide pipe is relatively small compared with the inner wall area of the anode pipe, when the flow guide pipe is inserted into the anode pipe (i.e. the flow guide pipe bears the anode pipe), the adsorption capacity of the entire device for the dust in the smoke decreases, i.e. the filtration capacity of the device for the dust in the smoke decreases. Therefore, before the driving member acts, the control center reduces the output power of the fan, and the flow speed of the smoke in the exhaust pipe is reduced, so that the amount of the smoke flowing through the flow guide pipe per unit time is reduced, thereby ensuring that the amount of the dust adsorbed by the flow guide pipe does not exceed the carrying limit of the flow guide pipe, and thereby ensuring the cleaning capacity of the entire device for the dust in the smoke;

[0030] 5. The setting of the current tester can detect the current value in the circuit at any time, when the detected current value does not exceed the preset value of the control center, it means that the adsorption amount of dust on the inner wall of the anode tube has not reached the limit at this time, so the anode tube 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 dust amount on the inner wall of the anode tube will reach the limit value that the anode tube can bear at this time, so the control center will immediately reduce the power of the fan and start the dust removal component to clean the anode tube after receiving the signal. The start of the dust removal component in the application is determined according to whether the load amount of the dust removal component reaches the limit, compared with the traditional dust removal component which works periodically, the dust removal component in the application will not work invalidly when it does not need to clean, compared with the traditional dust removal component, the dust removal component in the application is more intelligent, and reduces invalid work, and the equipment in the application saves more energy. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of embodiment 1 of the application;

[0032] Figure 2 It is a schematic diagram of the overall structure of the dust removal component in embodiment 1 of the application;

[0033] Figure 3 It is a schematic diagram of the connection of the dust removal component and the dust removal component in embodiment 1 of the application;

[0034] Figure 4 It is a schematic diagram of the structure of the guide plate in embodiment 1 of the application;

[0035] Figure 5 It is Figure 4 the enlarged schematic diagram of A in FIG. 4;

[0036] Figure 6 It is a schematic diagram of the structure of the sliding block in embodiment 1 of the application;

[0037] In the figure, 1, furnace body; 11, passage; 12, gate component; 2, track; 3, car body; 4, smoke exhaust mechanism; 41, smoke exhaust pipe; 42, fan; 43, dust removal component; 431, mounting pipe; 4311, mounting groove; 432, anode tube; 433, mounting frame; 434, cathode rod; 44, collection component; 441, collection pipe; 442, collection box; 443, filter membrane; 45, dust removal component; 451, sliding frame; 4511, guide hole; 452, guide pipe; 453, driving part; 4531, mounting block; 4532, sliding groove; 4533, electric push rod; 4534, sliding block; 454, partition pipe; 455, current tester. DETAILED DESCRIPTION

[0038] The following will be described in combination withFigures 1-6 The present application is described in further detail. Embodiment 1

[0039] A production device for producing a casting for an automobile transmission shaft, referring to Figure 1 , comprising a furnace body 1, a vehicle body 3 and a smoke exhaust mechanism 4.

[0040] The furnace body 1 in this embodiment is in the shape of a rectangular parallelepiped, and is fixedly installed on the ground. A passageway 11 is formed in the furnace body 1 along the length direction, and extends through the entire furnace body 1 along the length direction. The passageway 11 extends downward to the bottom of the furnace body 1. The furnace body 1 is formed with two openings due to the arrangement of the passageway 11. Two gate assemblies 12 corresponding to the two openings are arranged on the furnace body 1. The gate assembly 12 in this embodiment comprises a gate and a hydraulic cylinder. The gate is slidably arranged on the sidewall of the furnace body 1 along the vertical direction. The hydraulic cylinder is installed on the furnace body 1, and the output shaft of the hydraulic cylinder is fixedly connected with the gate. A track 2 is also laid on the ground in this embodiment, and is arranged along the length direction of the passageway 11, and extends through the passageway 11.

[0041] The vehicle body 3 in this embodiment can be provided with a plurality of vehicle bodies 3, which are arranged in sequence along the length direction of the track 2. Only one vehicle body 3 is shown in this embodiment. The driving device for driving the vehicle body 3 to slide in or out comprises a motor, a chain gear set and a push plate. The chain gear set is installed on the track 2, and the push plate is fixedly connected with the chain in the chain gear set, and slidably abuts against the upper end surface of the track 2. The motor is installed on the track 2, and the output shaft of the motor is coaxially fixedly connected with 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, and further driving the push plate to slide along the laying direction of the track 2. The push plate abuts against the vehicle body 3 in the process of sliding, and drives the vehicle body 3 to move along the laying direction of the track 2 (prior art, which will not be described in detail here).

[0042] The vehicle body 3 can drive into the interior of the passageway 11 and drive out of the passageway 11. When the vehicle body 3 drives into the interior of the passageway 11, the two side edges of the vehicle body 3 along the driving direction will abut against the inner wall of the passageway 11 on the furnace body 1. Then, the gate is driven to descend by the hydraulic cylinder at this time, so that the lower end surface of the gate abuts against the upper end surface of the vehicle body 3. Therefore, the vehicle body 3, the passageway 11 and the gate form a relatively sealed space. The material to be heated is located on the upper end surface of the vehicle body 3, i.e. the material is located in the sealed space, so as to avoid the loss of heat in the furnace body 1 as much as possible when the material on the vehicle body 3 is heated (prior art, which will not be described in detail here).

[0043] Referring to Figure 2 , Figure 3 and Figure 4 , the smoke exhaust mechanism 4 in this embodiment comprises a smoke exhaust pipe 41 and a fan 42.

[0044] The smoke exhaust pipe 41 is fixedly installed on the upper surface of the furnace body 1, and is in communication with the passage 11 of the furnace body 1. The fan 42 is coaxially fixedly installed in the interior of the smoke exhaust pipe 41. The interior of the smoke exhaust pipe 41 is provided with the dust removal assembly 43 for filtering dust in the flue gas. The dust removal assembly 43 is installed between the fan 42 and the furnace body 1. The interior of the smoke exhaust pipe 41 is further provided with the collection assembly 44 for collecting dust. When the furnace body 1 heats the material, the fan 42 will draw the flue gas in the furnace body 1 into the smoke exhaust pipe 41. The flue gas entering the smoke exhaust pipe 41 will first pass through the dust removal assembly 43. The dust removal assembly 43 filters out the dust in the flue gas. Then, the collection assembly 44 collects the dust filtered out by the dust removal assembly 43. The solid particle content in the filtered flue gas is reduced to reach the emission standard, and then is discharged out of the furnace body 1 through the smoke exhaust pipe 41. It should be noted that the furnace body 1 in the embodiment is further provided with a vent (not shown in the figure) in communication with the passage 11, so as to realize the normal circulation of the gas in the furnace body 1.

[0045] Meanwhile, the dust removal assembly 43 in the embodiment is installed in the interior of the smoke exhaust pipe 41. Compared with the traditional bag filter and electrostatic precipitator, the dust removal assembly 43 in the embodiment has a smaller volume. Compared with the installation of the large trapezoidal bag filter or electrostatic precipitator at the tail of the smoke exhaust pipe 41, the dust removal assembly 43 in the embodiment is installed in the interior of the smoke exhaust pipe 41, which almost does not occupy extra space. Therefore, the total volume of the production equipment in the embodiment is much smaller than that of the traditional equipment, so that the equipment has a smaller floor area and consumes less land resources.

[0046] In the embodiment, the dust removal assembly 43 includes the installation pipe 431.

[0047] The mounting pipe 431 in the embodiment is coaxially fixedly mounted along the horizontal direction on the inner wall of the smoke exhaust pipe 41, the outer peripheral wall of the mounting pipe 431 is in contact with the inner peripheral wall of the smoke exhaust pipe 41, a plurality of mounting grooves 4311 are formed on the mounting pipe 431 along the axis direction of the mounting pipe 431, the plurality of mounting grooves 4311 are all throughly arranged along the axis direction of the mounting pipe 431, and the plurality of mounting grooves 4311 are circularly arranged at one end of the mounting pipe 431. Each mounting groove 4311 is coaxially fixedly mounted with an anode tube 432, 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 with the negative pole of the external power supply through a wire, and the anode tubes 432 are connected in parallel through the wires. The side of the mounting pipe 431 close to the fan 42 is further provided with a mounting bracket 433, the mounting bracket 433 is coaxially fixedly mounted on the inner wall of the smoke exhaust pipe 41, the mounting bracket 433 is in a hollow shape, a plurality of cathode rods 434 are fixedly connected on the mounting bracket 433, the plurality of cathode rods 434 correspond to the plurality of anode tubes 432 one by one, the cathode rods 434 are coaxially located inside the anode tubes 432, and the cathode rods 434 do not abut against the inner wall of the anode tubes 432. Each cathode rod 434 is electrically connected with the positive pole of the external power supply through a wire, and the cathode rods 434 are connected in parallel through the wires. The smoke exhaust pipe 41 is further provided with an ash removal assembly 45 for removing the dust on the inner wall of the anode tube 432.

[0048] It should be noted that the wires connected with the anode tubes 432 in the embodiment are all located in the pipe wall of the mounting pipe 431, and then pass through the pipe wall of the mounting pipe 431 and the smoke exhaust pipe 41 to be connected with the external power supply. Each anode tube 432 is additionally connected with a wire grounded. Similarly, the wires connected with the cathode rods 434 are all located in the mounting bracket 433, and then pass through the pipe wall of the smoke exhaust pipe 41 to be connected with the external power supply. The mounting pipe 431 and the mounting bracket 433 in the embodiment are both made of ceramic material, so the mounting pipe 431 and the mounting bracket 433 in the embodiment have certain insulation and high temperature resistance.

[0049] Before starting the fan 42, the external power supply is started. After the external power supply is started, the strong electric field near the cathode rod 434 ionizes the surrounding gas molecules to generate 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 to the dust collecting electrode (anode tube 432). When the dust-containing gas passes through the electric field, the particulate matter collides with the free electrons or negative ions. The particulate matter captures the electric charge and becomes negatively charged. The charged particles are subjected to the Coulomb force in the electric field and accelerate toward the dust collecting 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 fan 42 is started, the fan 42 will draw the flue gas in the furnace body 1 into the exhaust pipe 41. With the continuous flow of the flue gas in the exhaust pipe 41, the flue gas will enter each anode tube 432. When the flue gas enters the inside of the anode tube 432, a large number of free electrons and positive and negative ions exist between the cathode rod 434 and the anode tube 432 due to the strong electric field between the cathode rod 434 and the anode tube 432. The 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 electric charge. Therefore, the dust particles in the flue gas become negatively charged. The negatively charged dust particles in the electric field will be subjected to the Coulomb force and move in the direction close to the inner wall of the anode tube 432. Finally, the dust particles are adsorbed on the inner wall of the anode tube 432. Therefore, the dust in the flue gas is cleaned out, thereby achieving the effect of filtering the dust in the flue gas. After a certain amount of dust is adsorbed on the inner wall of the anode tube 432, the dust cleaning assembly 45 will clean the dust on the inner wall of the anode tube 432. The dust collected from the anode tube 432 is collected by the collecting assembly 44. After the dust on the anode tube 432 is cleaned, the adsorption ability of the anode tube 432 for the dust particles in the flue gas is restored.

[0050] The cleaning assembly in the embodiment includes a sliding frame 451.

[0051] The sliding frame 451 in the embodiment is annular, and is coaxially and slidingly arranged on the inner wall of the smoke exhaust pipe 41. The peripheral wall of the sliding frame 451 slidingly abuts against the inner wall of the smoke exhaust pipe 41. The sliding frame 451 is located on the side of the mounting pipe 431 close to the furnace body 1. A plurality of flow guide holes 4511 are formed in the sliding frame 451. The plurality of flow guide holes 4511 correspond to the plurality of anode pipes 432 one by one. The flow guide holes 4511 and the anode pipes 432 are coaxially arranged. A flow guide pipe 452 is coaxially arranged between the flow guide holes 4511 and the anode pipes 432. One end of the flow guide pipe 452 is fixedly connected to the inner wall of the flow guide hole 4511. The other end of the flow guide pipe 452 is slidingly inserted into the anode pipe 432. The outer peripheral wall of the flow guide pipe 452 slidingly abuts against the inner peripheral wall of the anode pipe 432. The smoke exhaust pipe 41 is provided with a driving member 453 for driving the sliding frame 451 to move axially. Similarly, the sliding frame 451 in the embodiment is also made of ceramic material, and thus has certain insulation and high temperature resistance.

[0052] The material of the flow guide pipe 452 and the material of the anode pipe 432 are the same material, and both can conduct electricity. The end of the flow guide pipe 452 close to the anode pipe 432 is coaxially connected with a partition pipe 454. The partition pipe 454 in the embodiment is also made of ceramic material that does not conduct electricity. The diameter of the partition pipe 454 is the same as the diameter of the end of the flow guide pipe 452 close to the anode pipe 432. When the flow guide pipe 452 is located at the position farthest away from the anode pipe 432, the outer peripheral wall of the partition pipe 454 abuts against the inner peripheral wall of the anode pipe 432. The flow guide pipe 452 does not contact the anode pipe 432. When the flow guide pipe 452 is slidingly inserted into the anode pipe 432, the flow guide pipe 452 contacts the anode pipe 432. The flow guide pipe 452 can conduct electricity. The hole diameters at both ends of the flow guide pipe 452 are greater than the hole diameter of the middle section of the flow guide pipe 452. The hole wall of the middle section of the flow guide pipe 452 does not contact the cathode rod 434 and the anode pipe 432.

[0053] When the dust on the inner wall of the anode tube 432 needs to be cleaned, the driving member 453 is started to drive the sliding frame 451, the flow guide pipe 452 and the partition pipe 454 to move towards the anode tube 432. Since the diameter of the partition pipe 454 is the same as that of the end of the flow guide pipe 452 close to the anode tube 432, the outer wall of the partition pipe 454 is in abutment with the inner wall of the anode tube 432. Therefore, when the driving frame moves towards the anode tube 432, the partition pipe 454 and the flow guide pipe 452 are inserted into the anode tube 432. Since the outer wall of the partition pipe 454 is in abutment with the inner wall of the anode tube 432, the dust on the inner wall of the anode tube 432 is scraped off and pushed away from the sliding frame 451 until the partition pipe 454 moves to the end of the anode tube 432 away from the sliding frame 451. The dust on the inner wall of the anode tube 432 is completely pushed out of the anode tube 432, thereby achieving the cleaning of the inner wall of the anode tube 432. After the dust on the inner wall of the anode tube 432 is pushed out of the anode tube 432, the collecting assembly 44 collects the dust.

[0054] Meanwhile, the flow guide pipe 452 in the embodiment is in the shape of narrow in the middle and wide at both ends. When the gas suddenly enters the wider channel 11 from the relatively narrower channel 11, the flow speed of the gas decreases. Therefore, when the flue gas enters the anode tube 432 from the flow guide pipe 452, the flow speed of the flue gas decreases, the residence time of the flue gas in the anode tube 432 increases, the contact time of the dust particles in the flue gas with the electric charges in the anode tube 432 increases, thereby increasing the probability of the dust particles capturing the electric charges. The flow speed of the flue gas in the anode tube 432 decreases, the speed of the dust particles also decreases, and the momentum of the dust particles decreases, thereby reducing the probability of the dust particles escaping from the Coulomb force in the electric field in the anode tube 432. In turn, the dust particles are more easily adsorbed on the inner wall of the anode tube 432, which greatly improves the filtering effect of the anode tube 432 on the dust in the flue gas and greatly improves the cleaning effect of the dust removal assembly 43 on the dust in the flue gas. In addition, the flow guide pipe 452 in the embodiment is used in cooperation with the sliding frame 451 and the driving member 453. One end of the flow guide pipe 452 can be inserted into the anode tube 432. When the flow guide pipe 452 is inserted into the anode tube 432, the partition pipe 454 on one side of the flow guide pipe 452 can scrape off the dust adsorbed on the inner wall of the anode tube 432 from the end of the anode tube 432 away from the flow guide pipe 452. Compared with the existing technology 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 scraped off at one time in the present application, thereby making the dust cleaning assembly 45 in the present application have better cleaning effect and cleaning efficiency.

[0055] Referring toFigure 4 and Figure 5 More importantly, the draft tube 452 in the embodiment is arranged to be conductive, and the draft tube 452 is arranged with a non-conductive partition tube 454 at one end close to the anode tube 432. When the draft tube 452 does not perform the soot scraping work, the draft tube 452 is not inserted into the anode tube 432, and the partition tube 454 is in contact with the anode tube 432, so that the draft tube 452 only plays a role of guiding flow and reducing the flow speed of the flue dust in the anode tube 432 at this time. When it is necessary to clean the inner wall of the anode tube 432, the driving member 453 drives the draft tube 452 and the partition tube 454 to be inserted into the anode tube 432. When the partition tube 454 scrapes the dust on the inner wall of the anode tube 432, there will be an overlapping part of the draft tube 452 and the anode tube 432 in the radial direction, so that the anode tube 432 overlapping with the draft tube 452 cannot adsorb the dust in the flue gas. Since the draft tube 452 in the application is conductive, and the outer wall of the draft tube 452 is in contact with the inner wall of the anode tube 432 when the draft tube 452 is inserted into the anode tube 432, the draft tube 452 is in an electrified state (equivalent to the anode tube 432) at this time. The draft tube 452 at this time bears the responsibility of the anode tube 432, so as to adsorb the dust in the flue gas, thereby ensuring the continuity of the operation of the device. When the draft tube 452 finishes cleaning the dust on the inner wall of the anode tube 432, the draft tube 452 will move back to the initial position under the action of the driving member 453. Due to the existence of the partition tube 454, the draft tube 452 is separated from the anode tube 432, and no current will flow through the draft tube 452, so that the draft tube 452 no longer bears the responsibility of the anode tube 432, and the draft tube 452 no longer has the adsorption force for the dust. Therefore, the dust adsorbed on the inner wall of the draft tube 452 will fall off under the flow of the flue gas, and then enter the anode tube 432, so that the anode tube 432 can re-adsorb the dust in the flue gas after cleaning.

[0056] In general, when the ash cleaning work is not needed for the anode tube 432, the flow guide pipe 452 is in the initial position, the flow guide pipe 452 is not in contact with the anode tube 432, the cutoff pipe 454 is in contact with the anode tube 432, and since the cutoff pipe 454 is not conductive, there is no current in the flow guide pipe 452. At this time, the flow guide pipe 452 only plays a role of guiding the flue gas in the smoke exhaust pipe 41 and reducing the flow speed of the dust in the anode tube 432. When the anode cleaning is needed, the flow guide pipe 452 will be inserted into the anode tube 432 under the action of the driving member 453, and the flow guide pipe 452 is in contact with the anode tube 432 at this time. The flow guide pipe 452 can perform the work of the anode tube 432 at this time, and can adsorb the dust in the flue gas passing through the inside of the flow guide pipe 452. The problem that the anode tube 432 cannot adsorb the dust particles due to the ash cleaning work is solved, so that the continuous work of the equipment is ensured as a whole, and the stability of the equipment is greatly improved.

[0057] Secondly, referring to Figure 2 、 Figure 4 and Figure 6 The driving member 453 in the embodiment includes a mounting block 4531, a sliding block 4534 and an electric push rod 4533.

[0058] The mounting block 4531 is fixedly installed on the outer wall of the smoke exhaust pipe 41. The inside of the mounting block 4531 is provided with a sliding groove 4532 along the axis direction of the smoke exhaust pipe 41. The sliding groove 4532 penetrates the pipe wall of the smoke exhaust pipe 41 along the radial direction of the smoke exhaust pipe 41. The sliding block 4534 slides in the sliding groove 4532 along the axis direction of the smoke exhaust pipe 41. The lower end surface of the sliding block 4534 is fixedly connected to the sliding frame 451. The electric push rod 4533 is fixedly installed in the sliding groove 4532. The output shaft of the electric push rod 4533 is fixedly connected to the sliding block 4534.

[0059] Referring to Figure 1 and Figure 2 It should be noted that the plurality of wires connected to the cathode rod 434 in the embodiment are finally 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 electrode of the external power supply. The current tester 455 is also arranged on the bus. The current tester 455 is electrically connected to the control center. The fan 42 and the electric push rod 4533 in the embodiment are also electrically connected to the control center.

[0060] The current tester 455 can detect the current value in the circuit at any time. When it is detected that the current value does not exceed the preset value of the control center, it means that the adsorption amount of dust on the inner wall of the anode tube 432 has not reached the limit at this time, so the anode tube 432 does not need to be cleaned at this time; When it is detected that the 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 will reach the limit value that the anode tube 432 can bear at this time, so 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 assembly 43 to clean the anode tube 432. The start of the cleaning assembly 45 in the embodiment is determined according to whether the load amount of dust of the dust removal assembly 43 reaches the limit. Compared with the traditional cleaning assembly 45 which works periodically, the cleaning assembly 45 in the application will not work invalidly when it is not needed to clean, compared with the traditional cleaning assembly 45, the cleaning assembly 45 in the application is more intelligent, and reduces invalid work, and the equipment in the application saves more energy.

[0061] Finally, the collecting assembly 44 in the embodiment includes a collecting pipe 441 and a collecting box 442. The collecting pipe 441 is in communication with the exhaust pipe 41, and the collecting box 442 is located below the exhaust pipe 41. The collecting pipe 441 is arranged in the vertical direction, and the end of the collecting pipe 441 away from the exhaust pipe 41 is in communication with the collecting box 442. The communication position of the collecting pipe 441 and the exhaust pipe 41 is between the fan 42 and the mounting pipe 431.

[0062] When the partition pipe 454 and the flow guide pipe 452 are inserted into the anode tube 432, part of the dust in the anode tube 432 begins to be extruded out of the anode tube 432. The extruded dust will be gathered due to the pushing force of the partition pipe 454. The gathered dust has a certain mass, so after the dust is extruded out of the anode tube 432, the dust will fall into the collecting pipe 441 under the action of gravity, and then fall into the collecting box 442 along the collecting pipe 441, thereby realizing the collection of dust.

[0063] Meanwhile, the filter membrane 443 is coaxially arranged in the smoke exhaust pipe 41, the filter membrane 443 in the embodiment is made of stainless steel fiber felt, which can allow gas to pass through and cannot allow solid particles to pass through, and has certain elasticity and strength, the filter membrane 443 is arranged at the communication position of the collecting pipe 441 and the smoke exhaust pipe 41, and is relatively close to the fan 42, and the end of the filter membrane 443 away from the fan 42 is opposite to the anode pipe 432, the filter membrane 443 in the embodiment can filter a small part of dust that is not adsorbed by the anode pipe 432, so that the filtering effect of the whole device on dust is further improved as a whole; in addition, the filter membrane 443 in the embodiment is opposite to the anode pipe 432, and the gas from the anode pipe 432 can also impact the filter membrane 443, the gas can not only blow off a small part of dust adhered to the filter membrane 443, but also can make the filter membrane 443 always in a shaking state, so that the dust on the filter membrane 443 can be shaken off, and the dust shaken off can directly fall into the collecting pipe 441, so that a component for cleaning the filter membrane 443 is not additionally needed, so that the filtering effect on dust in flue gas is further improved without relatively increasing additional complex components. Embodiment 2

[0064] A production process for producing a casting for an automobile transmission shaft based on the above-mentioned production equipment for producing a casting for an automobile transmission shaft, comprising the following steps:

[0065] S1: placing the material on the vehicle body 3, and opening the gate assembly 12 at one end of the furnace body 1;

[0066] S2: starting the vehicle body 3, so that the vehicle body 3 enters the passage 11 of the furnace body 1 along the track 2, closing the opened gate assembly 12, and the furnace body 1, the gate assembly 12 and the vehicle body 3 form a relatively closed space;

[0067] S3: starting the fan 42, the external power supply in the smoke exhaust assembly and the current tester 455, and then starting the furnace body 1, the furnace body 1 starts to heat the material on the vehicle body 3, the fan 42 sucks the flue gas in the furnace body 1 into the smoke exhaust pipe 41, and the dust in the flue gas dust is adsorbed on the inner wall of the anode pipe 432 when passing through the anode pipe 432;

[0068] S4: When the current tester 455 detects that the current drops to the preset value, the driving member 453 drives the sliding frame 451 to move in the direction of approaching the mounting frame 433, the flow guide pipe 452 is slidably inserted into the anode pipe 432, and the dust on the inner wall of the anode pipe 432 is scraped from the end close to the mounting frame 433, the dust in the anode pipe 432 falls into the collecting tank 442 from the collecting pipe 441 after being scraped, at this time, the flow guide pipe 452 acts as the anode pipe 432 to continue to adsorb the dust in the flue gas;

[0069] S5: After the dust in the anode pipe 432 is cleaned, the driving member 453 drives the sliding frame 451 to move back, and the flow guide pipe 452 moves back to the initial position, and there is no current on the flow guide pipe 452, so the dust on the inner wall of the flow guide pipe 452 is no longer subjected to the electrostatic adsorption force, and is brought into the anode pipe 432 which has been cleaned into the dust with the flow of flue gas, and the anode pipe 432 re-adsorbs the dust in the flue gas;

[0070] S6: Then repeat the above S4 and S5 operations;

[0071] S7: After the material in the furnace body 1 is heated, the external power supply of the furnace body 1, the fan 42, the exhaust assembly and the current tester 455 are sequentially turned off, the gate assembly 12 at the other end is opened, and the vehicle body 3 is started to drive the vehicle body 3 out of the passage 11.

[0072] The embodiments of the specific embodiment are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, wherein the same parts are indicated by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A production apparatus for producing a casting for an automobile propeller shaft, characterized by, The utility model relates to a kind of smoke exhaust mechanism and a kind of stove, including: Furnace body (1), the passage (11) is opened in horizontal direction through, track (2) is laid on ground, the track (2) is laid along the opening direction of passage (11), the opening of passage (11) on the furnace body (1) is further provided with gate assembly (12), for control the opening and closing of passage (11); Multiple car bodies (3) are sequentially laid along the length direction of track (2), each car body (3) can reciprocate along track (2), and each car body (3) is provided with driving device for driving car body (3) to move; Exhaust mechanism (4), including the exhaust pipe (41) being arranged on the furnace body (1) and the fan (42) being arranged in the exhaust pipe (41), the exhaust pipe (41) is further provided with dust removal assembly (43) for filtering flue gas, and the dust removal assembly (43) is located between the fan (42) and the furnace body (1), and the exhaust pipe (41) is further connected with collection assembly (44) for collecting dust; The dust removal assembly (43) includes a mounting tube (431) coaxially fixedly installed on the inner wall of the exhaust pipe (41), a plurality of arrayed mounting grooves (4311) are formed in the mounting tube (431) along the axis direction thereof, each mounting groove (4311) is coaxially provided with an anode tube (432), the inner wall of the exhaust pipe (41) is further provided with a mounting rack (433), a plurality of cathode rods (434) are provided on the mounting rack (433), the plurality of cathode rods (434) correspond to the plurality of anode tubes (432) one-to-one, and the cathode rods (434) are coaxially inserted into the anode tubes (432), the cathode rods (434) are not in contact with the anode tubes (432), the exhaust pipe (41) is further provided with a dust cleaning assembly (45) for cleaning the inner wall of the anode tube (432), and the mounting rack (433) is not conductive; The dust cleaning assembly (45) includes a sliding rack (451) coaxially slidingly installed on the inner wall of the exhaust pipe (41), the sliding rack (451) is located on the side of the mounting tube (431) relatively close to the furnace body (1), a plurality of flow guide holes (4511) are formed in the sliding rack (451), the plurality of flow guide holes (4511) correspond to the plurality of anode tubes (432) one-to-one, and the flow guide holes (4511) are coaxially arranged with the anode tubes (432), a flow guide tube (452) is coaxially arranged between the flow guide holes (4511) and the anode tubes (432), one end of the flow guide tube (452) is fixedly connected to the inner wall of the flow guide holes (4511), the other end of the flow guide tube (452) is slidingly inserted into the anode tubes (432), and the outer peripheral wall of the flow guide tube (452) slidingly abuts against the inner peripheral wall of the anode tubes (432), the exhaust pipe (41) is provided with a driving member (453) for driving the axial movement of the sliding rack (451), and the sliding rack (451) is not conductive.

2. The production apparatus for producing a casting for a drive shaft of an automobile according to claim 1, characterized by The flow guide pipe (452) is coaxially connected with a partition pipe (454) near one end of the anode pipe (432), the diameter of the partition pipe (454) is the same as that of the flow guide pipe (452) near the one end of the anode pipe (432), when the flow guide pipe (452) is located at a position relatively farthest from the anode pipe (432), the partition pipe (454) is in contact with the anode pipe (432), the flow guide pipe (452) is not in contact with the anode pipe (432), when the flow guide pipe (452) is slidingly inserted into the anode pipe (432), the flow guide pipe (452) is in contact with the anode pipe (432), the flow guide pipe (452) can conduct electricity, and the hole diameters of two ends of the flow guide pipe (452) are greater than that of the middle of the flow guide pipe (452), and the hole wall of the middle section of the flow guide pipe (452) is not in contact with the cathode rod (434) and the anode pipe (432).

3. The production apparatus for producing a casting for a drive shaft of an automobile according to claim 2, characterized by The fan (42) and the driving member (453) are electrically connected with the control center, when the driving member (453) drives the sliding frame (451) to move in the direction close to the mounting pipe (431), the rotating speed of the fan (42) gradually decreases, and vice versa, the rotating speed of the fan (42) gradually increases.

4. The production apparatus for producing a casting for a drive shaft of an automobile according to claim 3, characterized by The mounting frame (433) is internally provided with a plurality of wires, the plurality of wires correspond to the plurality of cathode rods (434) one by one, one end of the wire is electrically connected with the cathode rod (434), the other end of the wire is connected with a bus, the bus is connected with an external power supply, the bus is further provided with a current tester (455), and the current tester (455) is electrically connected with the control center.

5. The production apparatus for producing a casting for a drive shaft of an automobile according to claim 4, characterized by The collecting assembly (44) comprises a collecting pipe (441) and a collecting box (442), the collecting pipe (441) is communicated with the smoke exhaust pipe (41), the collecting box (442) is located below the smoke exhaust pipe (41), the collecting pipe (441) is arranged in the vertical direction, one end of the collecting pipe (441) away from the smoke exhaust pipe (41) is communicated with the collecting box (442), and the communication position of the collecting pipe (441) and the smoke exhaust pipe (41) is located between the fan (42) and the mounting pipe (431).

6. The production apparatus for producing a casting for a drive shaft of an automobile according to claim 5, wherein The filter membrane (443) is coaxially installed in the smoke exhaust pipe (41), the filter membrane (443) can allow gas to pass through but not allow object particles to pass through, the filter membrane (443) is installed at the communication position of the collecting pipe (441) and the smoke exhaust pipe (41), and the filter membrane (443) is relatively close to the fan (42).

7. A production process for producing a casting for an automobile drive shaft, based on the production equipment for producing a casting for an automobile drive shaft in claim 6, comprising the following steps: S1: placing the material on the vehicle body (3), and opening the gate assembly (12) at the upper end of the furnace body (1); S2: start the vehicle body (3), so that the vehicle body (3) along the track (2) into the furnace body (1) passage (11), close the opened gate assembly (12), the furnace body (1), gate assembly (12) and vehicle 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) starts to heat the material on the vehicle body (3), the fan (42) inhales the flue gas in the furnace body (1) into the smoke exhaust pipe (41), and the dust in the flue gas dust is adsorbed on the inner wall of the anode pipe (432) when passing through the anode pipe (432); S4: when the current tester (455) detects that the current decreases to the preset value, start the driving member (453) to drive the sliding frame (451) to move in the direction close to the mounting frame (433), the flow guide pipe (452) is slidably inserted into the anode pipe (432), and the dust on the inner wall of the anode pipe (432) is scraped from one end close to the mounting frame (433), the dust in the anode pipe (432) falls into the collecting box (442) from the collecting pipe (441) after being scraped, at this time the flow guide pipe (452) acts as the anode pipe (432) to continue to adsorb the dust in the flue gas; S5: after the dust in the anode pipe (432) is cleaned, the driving member (453) drives the sliding frame (451) to move back, and the flow guide pipe (452) moves back to the initial position, and there is no current on the flow guide pipe (452), so the dust on the inner wall of the flow guide pipe (452) is no longer subjected to the electrostatic adsorption force, and is brought into the anode pipe (432) which has been cleaned after the dust is removed along with the flow of flue gas, and the anode pipe (432) reabsorbs the dust in the flue gas; S6: then repeat the above S4 and S5 operations; S7: after the material in the furnace body (1) is heated, the furnace body (1), the fan (42), the external power supply and the current tester (455) in the smoke exhaust assembly are closed in turn, the gate assembly (12) at the other end is opened, and the vehicle body (3) is started, so that the vehicle body (3) drives out of the passage (11).

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