CN110894801B - Universal multi-mode honeycomb carrier cleaning device - Google Patents

Abstract

The invention relates to a universal multi-mode honeycomb carrier cleaning device, which comprises a fixed part and a nozzle part fixed on the fixed part, and has the advantages of simple structure and convenience in operation, the cleaning height can be accurately measured and calculated by adopting a double-shaft cylinder, the cleaning effect is improved, in addition, a continuous swing motion mode and a fixed angle mode are adopted for an air blowing pipe, and the air blowing pipe is matched and used in multiple modes, so that the defect of blowing in the conventional fixed mode is avoided, the cleaning is thorough, a device for moving and turning the workpiece to change the position is avoided, the manufacturing cost is reduced, an artificial intelligent control method can be adopted in the working process, the positioning is accurate, no debris is left, the device is suitable for more types of workpieces, the multi-angle accurate positioning and reciprocating motion can be realized, the single cleaning efficiency of the working type is low, and the problem of manual multiple calibration and positioning is reduced.

Description

Universal multi-mode honeycomb carrier cleaning device

Technical Field

The invention belongs to the field of vehicle exhaust purification, and particularly relates to a universal multi-mode honeycomb carrier cleaning device.

Background

A diesel engine is an engine that draws energy to release by burning diesel. The fuel for diesel engines is diesel, which has a higher viscosity than gasoline and is less prone to evaporation, while its auto-ignition temperature is lower than gasoline. The diesel engine has the advantages of large torque and good economic performance, so the diesel engine is widely applied to large-scale diesel equipment, and is particularly suitable for cargo vehicles, such as large-power high-speed diesel engines mainly matched with heavy-duty automobiles, large-scale buses, engineering machinery, ships, generator sets and the like.

However, the diesel engine requires high structural strength and rigidity of each related part due to high working pressure, so the diesel engine is heavy and has large volume; the oil injection pump and the nozzle of the diesel have high manufacturing precision requirement, so the cost is higher; in addition, the diesel engine works roughly, and vibration noise is large; the diesel oil is not easy to evaporate, and the starting is difficult when the vehicle is cooled in winter. Due to the above characteristics, the diesel engine is generally used for large and medium-sized load trucks in the past. In addition, diesel engines are heavy, have lower power per liter (i.e., lower rpm), have higher noise and vibration, and have more serious emissions of soot and Particulate Matter (PM), and thus are less preferred by cars. Especially, with the new development of small high-speed diesel engines, a batch of advanced technologies, such as electric control direct injection, common rail, turbocharging, inter-cooling and the like, can be applied to the small diesel engines, so that the defects of the original diesel engines are better solved, and the advantages of the diesel engines in the aspects of energy saving and CO2 emission cannot be replaced by all heat engines including gasoline engines, so that the small high-speed diesel engines become green engines.

However, the application of diesel vehicles is greatly limited due to the severe soot and particulate emissions of diesel vehicles. PM is an important issue in the control of diesel engine emissions. To reduce diesel particulate emissions to meet emission standards and regulations, aftertreatment devices must be used in addition to built-in purifications, and particulate traps (DPFs) are one of the most effective and promising aftertreatment technologies currently being proposed to control particulate emissions.

The particulate trap can reduce soot produced by a diesel engine by more than 90%. The captured particulate matter is then removed by regeneration. Regeneration of a particulate trap refers to the periodic removal of deposited particulate matter to restore the filtering performance of a DPF because during long-term operation of the DPF, the gradual increase of particulate matter in the particulate trap causes an increase in engine backpressure, resulting in a decrease in engine performance. The regeneration of the particle trap has two methods, namely active regeneration and passive regeneration: active regeneration refers to the use of external energy to increase the temperature within the particulate trap, causing the particulates to ignite and burn. When the temperature in the particulate trap reaches around 550 c (higher without additives), the deposited particulate matter will oxidize and burn, and if the temperature does not reach 550 c, the excessive deposits will clog the particulate trap, requiring an external energy source (e.g., an electric heater, burner, or change in engine operating conditions) to raise the temperature within the DPF to cause the particulate matter to be removed by oxidative combustion. Passive regeneration refers to the use of fuel additives or catalysts to lower the ignition temperature of the particulates so that the particulates can ignite and burn at normal diesel exhaust temperatures. Additives such as cerium, iron and strontium are added to the fuel in proportions such that too much additive affects the life of the DOC, but too little if any, can result in a delay in regeneration or an increase in regeneration temperature.

Chinese patent application CN103104321A published in 2013, 5, month and 15, proposes a temperature rising device and a temperature rising method for exhaust aftertreatment of a diesel engine. In this application, a low temperature booster is used to raise the temperature of the exhaust gas entering the DPF so that carbon particles accumulated in the DPF are burned, thereby regenerating the DPF. In this application, air is first preheated by high-temperature heat emitted from the heat storage body to form superheated air, and then the superheated air is used to preheat fuel. However, in this application the atomization of the fuel is not sufficient, so that the ignition point of the fuel-air mixture formed is higher, resulting in a higher required ignition bar temperature. In addition, since the ignition rod in this application performs both preheating and ignition functions, it is necessary to maintain a high temperature for a long time, resulting in the ignition rod being easily damaged and requiring frequent replacement; and because the ignition rod is arranged in the outer sheath, the ignition rod is difficult to replace independently, thereby bringing about the problems of cost increase, inconvenient maintenance and the like.

As another exemplary solution, the DPF is removed from the vehicle after use and then cleaned with a dedicated device, as disclosed in chinese patent No. 2017104131072. The cleaning device utilizes a vertical direct blowing type driving nozzle pipe to translate along the X-axis direction or move up and down along the Z-axis direction to clean the honeycomb carrier. However, this cleaning apparatus has problems such as high cleaning pressure and incomplete cleaning.

Accordingly, there remains a need in the art for a device that can efficiently and thoroughly clean a DPF or even a GPF (gasoline vehicle particulate trap) with low air pressure.

Disclosure of Invention

In order to solve the technical problem, the invention provides a universal multi-mode honeycomb carrier cleaning device.

The invention is realized by the following technical scheme.

The invention provides a universal multi-mode honeycomb carrier cleaning device which comprises a fixing part and a nozzle fixed on the fixing part, wherein the nozzle can swing at any angle relative to the fixing part in a vertical plane; the fixed part comprises a rotary plate positioned at one end and a motor connected with the rotary plate, and one end of the nozzle part is connected with the rotary plate.

Further, the fixing part comprises a fixing plate, a motor is fixedly connected to the fixing plate, the tail end of the output end of the motor penetrates to the other side of the fixing plate, a rotary plate is connected to the tail end of the motor, a first rotating shaft is installed on the outer edge, far away from the center, of one side, far away from the fixing plate, of the rotary plate, a connecting plate is installed on the first rotating shaft, a second rotating shaft is installed on the connecting plate, a hoop is fixedly connected to the side, far away from the fixing plate, of the second rotating shaft, an induction screw is fixedly connected to the side face of the bottom of the rotary plate, an inductor fixing plate is fixedly connected to the fixing plate and located at the bottom of the center of the rotary plate, a photoelectric proximity switch used for being abutted against and in induction fit with the induction screw is fixedly connected to the inductor fixing plate, a bearing fixing sleeve is fixedly connected to one side, located on the rotary plate, of the fixing plate, and a third rotating shaft is installed on the bearing fixing sleeve, the side, far away from the fixed plate, of the third rotating shaft is fixedly connected with a butt plate, the butt plate is fixedly connected with two hoops, an air blowing pipe is fixedly sleeved between the two hoops, and the bottom of the air blowing pipe is connected with a nozzle.

Furthermore, a double-shaft cylinder is fixedly connected to the same side of the fixing plate, which is positioned on the gas blow pipe, the top of the double-shaft cylinder is connected with a guide plate, a round hole is formed in the guide plate in an inserted manner, a graphite-based guide copper sleeve is arranged in the round hole, a height measuring rod is inserted into the graphite-based guide copper sleeve in an inserted and sliding manner, the bottom of the height measuring rod extends to the bottom of the guide plate, a limit ring is arranged on the side surface of the bottom, a flat gasket sleeved with the height measuring rod is fixedly connected on the end surface of the bottom of the guide plate, a compression spring surrounding a height measuring rod is fixedly connected between the flat washer and the limit ring, the top of the height measuring rod extends to the top of the guide plate and is fixedly connected with an induction block, the top of the guide plate is fixedly connected with an inductor fixing support, and the inductor fixing support is fixedly connected with a photoelectric proximity switch which is used for triggering the induction block to be close to the induction block in an induction manner.

Further, the nozzle is rotated by an angle of-60 to 60 ° with respect to the fixed portion.

Further, the nozzle can perform reciprocating oscillation in a vertical plane, and the oscillation frequency is 0-250 times/minute.

Further, the pressure of the gas sprayed out of the nozzle is 0.5-1.0 MPa.

Further, the pressure of the gas discharged from the nozzle is any one of 0.6MPa, 0.7MPa, and 0.8 MPa.

Furthermore, the lifting device also comprises a Z-axis lifting system which is connected with the fixing part and used for lifting the fixing part.

And the control system is electrically connected with the magnetic proximity switch, the first photoelectric proximity switch, the motor, the second photoelectric proximity switch and the Z-axis lifting system through leads to control the work of the whole device.

Further, the frequency of the nozzle swinging in the vertical plane is 1 time/min, 5 times/min, 10 times/min, 15 times/min, 20 times/min, 25 times/min, 30 times/min, 35 times/min, 40 times/min, 45 times/min, 50 times/min, 55 times/min, 60 times/min, 65 times/min, 70 times/min, 75 times/min, 80 times/min, 85 times/min, 90 times/min, 95 times/min, 100 times/min, 105 times/min, 110 times/min, 115 times/min, 120 times/min, 125 times/min, 130 times/min, 135 times/min, 140 times/min, 145 times/min, Any one of 150/min, 155/min, 160/min, 165/min, 170/min, 175/min, 180/min, 185/min, 190/min, 195/min, 200/min, 205/min, 210/min, 215/min, 220/min, 225/min, 230/min, 235/min, 240/min, 245/min, and 250/min.

Further, the motor is any one of a servo motor and a stepping motor.

The invention has the beneficial effects that: the technical scheme of the invention has the advantages of simple structure and convenient operation, the cleaning height can be accurately measured and calculated by adopting the double-shaft cylinder, the cleaning effect is improved, in addition, the air blowing pipe adopts a continuous swing motion mode and the air blowing pipe adopts a fixed angle mode, and multiple modes are matched for use, so that the defect of the existing fixed mode purging is avoided, the cleaning is thorough, a device for additionally arranging a workpiece to move and turn to change positions is avoided, the manufacturing cost is reduced, the working process can adopt an artificial intelligent control method, the positioning is accurately purged, no scraps remain, more types of workpieces are suitable, the multi-angle accurate positioning and reciprocating motion can be realized, the single cleaning efficiency of the working type is prevented from being low, and the problem of manual multiple calibration positioning is reduced.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a view from A-A in FIG. 2;

FIG. 5 is a view from B-B in FIG. 2;

FIG. 6 is a view taken along line C-C of FIG. 2;

FIG. 7 is a schematic view of the blowing tube wobble of the present invention;

FIG. 8 is a schematic illustration of the invention in position with the workpiece to be cleaned before it is lowered;

FIG. 9 is a schematic illustration of the invention after lowering and position of the workpiece to be cleaned;

in the figure: 11-double-shaft cylinder, 12-fixing plate, 13-guide plate, 14-induction block, 15-inner hexagonal cylindrical head screw, 16-first photoelectric proximity switch, 17-inductor fixing bracket, 18-graphite-based guide copper sleeve, 19-flat washer, 110-height measuring rod, 111-compression spring, 112-inner hexagonal flat round head screw, 113-magnetic proximity switch, 114-exhaust throttling type air pipe joint, 115-inner hexagonal cylindrical head screw, 116-inner hexagonal flat round head screw, 21-bearing fixing sleeve, 22-locking nut, 23-third rotating shaft, 24-deep groove ball bearing, 25-second rotating shaft, 26-locking nut, 27-bearing spacer, 28-connecting plate, 29-direct deep groove ball bearing, 210-air pipe head, 210-inner hexagonal cylinder head screw, 24-deep groove ball bearing, 24-magnetic sensor, and magnetic sensor, 211-locking nut, 212-anchor ear, 213-air blowing pipe, 214-nozzle, 215-inner hexagonal socket head cap screw, 216-inner hexagonal socket head cap screw, 217-inner hexagonal socket head cap screw, 218-inner hexagonal socket head cap screw, 31-motor, 32-first rotating shaft, 33-locking nut, 34-deep groove ball bearing, 35-inner hexagonal set screw, 36-rotary plate, 37-1 type outer hexagonal nut, 38-induction screw, 39-second photoelectric proximity switch, 310-inductor fixing plate, 311-inner hexagonal socket head cap screw and 312-inner hexagonal socket head cap screw.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 shows an elevational overall view of a cleaning device according to an embodiment of the present invention. As seen in fig. 1, the cleaning device includes a stationary portion 100 and a nozzle portion 214 mounted on the stationary portion.

Referring to fig. 2, a front view of a cleaning apparatus according to an embodiment of the present invention is shown. Fig. 3-5 are cross-sectional views taken along lines a-A, B-B and C-C, respectively, of fig. 2. A cleaning apparatus according to an embodiment of the present invention will be described in further detail with reference to fig. 2 to 5.

Referring to fig. 3, the biaxial cylinder 11 is attached to the fixing plate 12, for example, by using an inner hexagonal socket head cap screw 115. The two exhaust throttle type air pipe joints 114 are used for controlling the movement speed of the double-shaft air cylinder 11, and the two magnetic proximity switches 113 are used for respectively detecting the position state of the double-shaft air cylinder 11. In one embodiment, a guide plate 13 is fixed to the biaxial cylinder 11 for guiding the moving direction of the biaxial cylinder 11. The return of the height measuring rod 110 is achieved by a compression spring 111 and a flat washer 19. The nozzle portion 214 is fixed by the induction block 14 and the socket head cap screw 15.

In one embodiment, an inductor fixing bracket 17 is fixedly connected to the guide plate 13, and a first photoelectric proximity switch 16 is fixedly connected to the inductor fixing bracket 17. The motor 31 is fixed to the fixing plate 12 using a socket cap screw 311. A turret plate 36 is connected to the servo/stepper motor 31 using socket head cap screws 35. The 1 st rotation shaft 32 is fixed to a turning plate 36 using 2 lock nuts 33 and deep groove ball bearings 34, respectively. The induction screw 38 is fixed to the rotary plate 36 using a type 1 outer hexagon nut 37.

The second electro-optical proximity switch 39 is fixed to the inductor fixing plate 310. The inductor fixing plate 310 is fixed to the fixing plate 12 using 2 socket cap screws 312. The bearing fixing sleeve 21 is fixed to the fixing plate 12 by using 3 hexagon socket head cap screws 216, and the third rotating shaft 23 is connected to the bearing fixing sleeve 21 by using 2 lock nuts 22 and 2 deep groove ball bearings 24, respectively. The anchor ear 212 and the 3 rd rotary shaft 23 are coupled using 2 socket cap screws 217. The second rotation shaft 25 and the link plate 28 are connected by a lock nut 26, a bearing spacer 27, and a deep groove ball bearing 29. The second rotary shaft 25 and the anchor ear 212 are coupled using 2 socket cap screws 218.

The blow pipe 213 is fixed to the anchor ear 212 by 2 socket cap screws 215. In order to prevent the air blowing pipe 213 from being separated and causing damage during the movement, the locking nut 211 is used for fixing. The inductor fixing plate 310 and the nozzle 214 are fixed by pipe threads.

The method and steps of using the cleaning apparatus will be exemplified with reference to the accompanying drawings.

Step 1. blowpipe 213 origin regression (aligned with the axis of the honeycomb carrier to be tested)

The servo motor/stepping motor 31 moves clockwise or counterclockwise to drive the rotating plate 36 and the sensing screw 38 to rotate, and when the sensing screw 38 approaches the second photoelectric proximity switch 39 and is triggered, the control system defines the position as the origin.

Step 2, detecting the honeycomb carrier

1. In this step, the biaxial cylinder 11 moves to the bottom dead center, the lower magnetic proximity switch 113 is in a triggered state, and the gas blow pipe 213 is in the original position (fig. 7);

2. the whole system mechanism slowly descends through a Z-axis lifting system

3. When the height measuring rod 110 contacts the surface of the honeycomb carrier, the Z-axis continues to descend, and the compression spring 111 enters a compressed state and starts to move upward relative to the guide plate 13 together with the exhaust throttle type air pipe joint 114 (FIG. 8)

4. When the Z axis continues to descend and the first photoelectric proximity switch 16 detects the sensing block 14, a signal is output, so that the control system stops the Z axis from descending,

5. the control system reads the set data to lift the whole mechanism to the required position, and at the moment, the height measuring rod 110 is restored to the normal state through the compression spring 111

6. The double-shaft cylinder 11 moves to the top dead center, and the upper magnetic proximity switch 113 is in a trigger state

It is noted that when 2 magnetic proximity switches 113 fail, the system intervenes and does not take the next action. Meanwhile, when the first photoelectric proximity switch 16 fails, in the descending process of the Z axis, the compression force of the compression spring 111 exceeds the holding force of the dual-axis cylinder 11, so that the shaft in the dual-axis cylinder 11 moves upwards, the lower magnetic proximity switch 113 is in an unfired state, and the system stops running, thereby protecting the honeycomb carrier from being damaged.

Step 3. blowpipe 213 continuous swing motion (mode 1)

1) Returning the original point of the air blowing pipe 213;

2) the servo motor/stepping motor 31 moves clockwise or anticlockwise according to a set speed, the connecting plate 28 is driven to perform continuous swinging movement through the rotating movement of the rotating plate 36, and the air blowing pipe 213 generates continuous swinging movement along with the continuous swinging movement;

fourthly, the blowing pipe 213 is fixed angle (mode 2)

1. 213 original point of the gas blow pipe returns

2. The servo motor/stepping motor 31 moves clockwise or counterclockwise by a certain angle according to the set speed and angle, and the blowing pipe 213 is positioned at a designated angle by the movement of the rotary plate 36 and the link plate 28.

Some exemplary embodiments of the present invention will be described below with reference to examples. Those of ordinary skill in the art will appreciate that these examples are provided for the purpose of illustration only and are not intended to limit the invention in any way.

Example 1

1) Accumulating soot

Taking 2 Yudi (yellow emperor) recrystallized silicon carbide honeycomb ceramic filters with the diameter of 286mm, weighing, accumulating the soot by using a YC6108Q diesel engine rack for 8 hours, weighing, and placing for later use.

2) Cleaning of

The honeycomb ceramic filter accumulating soot was cleaned for 30 minutes using the existing fixed nozzle type cleaning device and the cleaning device according to the present invention, respectively, and then weighed. The results obtained are shown in the following table, in which sample 1 was cleaned using the cleaning apparatus according to the present invention, and sample 2 was cleaned using the existing fixed nozzle type cleaning apparatus, and the cleaning speed, nozzle height and cleaning trajectory thereof were identical to those of sample 1.

Sample number	Empty carrier weight (kilogram)	Weight after deposition (kilogram)	Weight after washing (kilogram)	Weight of cleaning Ash (kilogram)	Cleaning efficiency (%)
						1	14.257	14.478	14.272	0.206	93.21267
2	15.497	15.661	15.526	0.135	82.317073

As can be seen from the table, with the cleaning device according to the present invention, the cleaning efficiency achieved is significantly higher than that achieved with the fixed nozzle type cleaning device.

Claims (7)

1. A universal multi-mode honeycomb carrier cleaning device is characterized in that: the nozzle can swing at any angle relative to the fixed part in a vertical plane; the fixed part comprises a rotary plate positioned at one end and a motor connected with the rotary plate, and one end of the nozzle is connected with the rotary plate;

the fixing part comprises a fixing plate, a motor is fixedly connected to the fixing plate, the tail end of the output end of the motor penetrates to the other side of the fixing plate, a rotary plate is connected to the tail end of the motor, a first rotary shaft is arranged at the outer edge of one side, far away from the center, of the rotary plate, a connecting plate is arranged on the first rotary shaft, a second rotary shaft is arranged on the connecting plate, a hoop is fixedly connected to the side, far away from the fixing plate, of the second rotary shaft, an induction screw is fixedly connected to the side face of the bottom of the rotary plate, an inductor fixing plate located at the bottom of the center of the rotary plate is fixedly connected to the fixing plate, a photoelectric proximity switch used for being in abutting induction fit with the induction screw is fixedly connected to the inductor fixing plate, a bearing fixing sleeve is fixedly connected to one side, located on the rotary plate, of the fixing plate, and a third rotary shaft is arranged on the bearing fixing sleeve, the side, far away from the fixed plate, of the third rotating shaft is fixedly connected with a butt plate, the butt plate is fixedly connected with two hoops, an air blowing pipe is fixedly sleeved between the two hoops, and the bottom of the air blowing pipe is connected with a nozzle;

lie in on the fixed plate gas blow pipe with one side fixedly connected with biax cylinder, biax cylinder top is connected with the deflector, it has the round hole to open in the deflector, is equipped with graphite base direction copper sheathing in the round hole, it has the height measuring pole to alternate the sliding connection in the graphite base direction copper sheathing, height measuring pole bottom extends to the deflector bottom and is equipped with the spacing collar on the bottom side, fixedly connected with and the flat packing ring that the height measuring pole cup jointed on the terminal surface of deflector bottom, the flat packing ring with fixedly connected with encircles the compression spring of height measuring pole between the spacing collar, height measuring pole top extends to deflector top and fixedly connected with response piece, deflector top fixedly connected with inductor fixed bolster, on the inductor fixed bolster fixedly connected with be used for with response trigger complex photoelectricity proximity switch when the response piece is close.

2. The gimbaled, multi-mode, honeycomb carrier cleaning apparatus of claim 1, wherein: the angle of rotation of the nozzle relative to the fixed part is-60 deg.

3. The gimbaled, multi-mode, honeycomb carrier cleaning apparatus of claim 1, wherein: the nozzle can perform reciprocating oscillation in a vertical plane, and the oscillation frequency of the nozzle is 0-250 times/minute.

4. The gimbaled, multi-mode, honeycomb carrier cleaning apparatus of claim 1, wherein: the pressure of the gas sprayed out of the nozzle is 0.5-1.0 MPa.

5. The gimbaled, multi-mode, honeycomb carrier cleaning apparatus of claim 4, wherein: the pressure of the gas ejected from the nozzle is any one of 0.6MPa, 0.7MPa, and 0.8 MPa.

6. The gimbaled, multi-mode, honeycomb carrier cleaning apparatus of claim 1, wherein: the lifting device also comprises a Z-axis lifting system connected with the fixing part for lifting the fixing part.

7. The gimbaled, multi-mode, honeycomb carrier cleaning apparatus of claim 3, wherein: the frequency of the nozzle oscillating in the vertical plane is 1, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150/min, Any one of 155 times/min, 160 times/min, 165 times/min, 170 times/min, 175 times/min, 180 times/min, 185 times/min, 190 times/min, 195 times/min, 200 times/min, 205 times/min, 210 times/min, 215 times/min, 220 times/min, 225 times/min, 230 times/min, 235 times/min, 240 times/min, 245 times/min, and 250 times/min.

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