CN201902277U - Rotating device assembly, and coarse filter and filter adopting same - Google Patents

Abstract

The utility model relates to a rotator assembly and a coarse filter and a filter using the rotator assembly. The rotator assembly includes a shell, a dust collecting plate, a bracket and a rotator rotatably assembled on the bracket. The rotator Two or more rotating plates are evenly distributed on the circumference of the rotating plate, and each rotating plate is provided with a scraper at one end away from the rotator, and the rotating shaft of the rotator is connected with a motor; since the rotator assembly of the utility model is uploaded The motor is automatically set, so the rotation speed of the spinner can be controlled artificially instead of only relying on the intake air of the engine to drive the spinner, and the wind pressure required for dust discharge can be formed at the dust discharge port of the spinner assembly conveniently through the motor drive, improving The dust removal efficiency improves the filtration efficiency of the existing cyclone coarse filter, especially solves the problem of low filtration efficiency of the existing cyclone coarse filter when the intake air volume of the engine is small.

Description

Spinner assembly and strainer and filter using same

technical field

The utility model relates to a matching part of an internal combustion engine, in particular to a rotator assembly and a coarse filter and a filter using the rotator assembly.

Background technique

Of the three media required for vehicle engine operation, air is used in the largest amount, and the air required for engine operation comes directly from the atmosphere. The suspended particles in the air will reduce the power of the engine and aggravate the wear inside the engine. Therefore, the air must be filtered before entering the engine, especially for power machinery such as trucks, engineering vehicles, and agricultural machinery. The above-mentioned power machinery often works In a dusty environment, it is particularly important to clean and filter the air. Existing engine air cleaners generally consist of a coarse filter and a fine filter, and are mainly used to filter out suspended particles in the air entering the engine cylinder, so as to reduce wear between the cylinder and the piston and piston ring. In order to clean the air inhaled by the engine, the existing common practice is to set the cyclone coarse filter, the draft tube coarse filter and the main body fine filter in sequence before the engine air intake, so as to gradually remove the impurities in the air and then clean the air. The air is introduced into the engine cylinder. Most of the main working parts of the existing cyclone coarse filter are guide tubes. There are rotating channels in the guide tubes. Under the action of centrifugal force, the dust and other sundries mixed in the air are thrown on the inner wall of the draft tube and slide down along the inner wall of the draft tube to be collected and then processed centrally. The above-mentioned cyclone coarse filter is obtained in some environments with less dust content It has a very good application, but in some harsh environments, such as deserts or engineering operations, due to its limited filtration efficiency, it cannot achieve ideal results. In order to solve the problem of low filtration efficiency of the above-mentioned cyclone coarse filter, the Chinese patent No. ZL200920089179.9 discloses a multi-stage composite air filter. A swirl channel is set and a spinner assembly is installed between the air intake cover and the draft tube coarse filter. The spinner assembly includes a cylindrical shell and a spinner that is rotatably assembled in the shell, and is circumferentially arranged on the spinner. The rotating plates and the scrapers arranged at the outer ends of each rotating plate, dust collecting plates are arranged on the circumferential inner wall of the rotator assembly casing; its working principle is such that the intake air flow generated by the engine suction passes through the air intake hood. After the flow channel is rotated, a rotating air flow is formed. Dust and other sundries in the rotating air flow are thrown to the circumferential inner wall surface of the air inlet hood by centrifugal force during the rotation of the air flow, and flow down along the inner wall surface of the air inlet hood into the rotating air. At the same time, the rotating airflow in the intake hood obliquely enters the rotator assembly to push the rotator assembly to rotate, and the rotator plate then drives the scraper set at its end to push the dust entering the rotator assembly into the dust collecting plate and The dust collection chamber formed between the shells of the spinner assembly is discharged from the shell of the spinner assembly through the dust outlet, and the air that has been preliminarily filtered by the spinner assembly enters the guide tube, is further filtered through the guide tube, and finally enters the fine filter. The above-mentioned multi-stage composite air filter has achieved certain effects in use, but there are also some problems in use, that is, with the precision development of the matching clearance between the various components inside the engine, the gap between the various components inside the engine The matching clearance of the engine is getting smaller and smaller, which directly leads to the improvement of the air quality requirements of the engine, especially in the case of idling, the gas flow rate sucked by the engine is small, and the flow rate of the swirling airflow formed after passing through the intake cover is low, while the above-mentioned The rotating plate of the multi-stage composite air filter is driven by the intake air flow, so the reduction in the flow rate of the intake air flow directly leads to the reduction in the rotating speed of the rotating plate, which in turn leads to the reduction of the exhaust air volume formed by the scraper. When the air volume is reduced to the point that it cannot resist the negative air intake pressure of the dust exhaust port, the dust exhaust function of the spinner assembly will decline, or even fail; it is contrary to the original design purpose, so the above-mentioned multi-stage composite air filter is used in the air intake of the engine. When it is small, there is still the problem of low filtration efficiency.

Contents of the invention

The purpose of the utility model is to provide a rotator assembly to improve the filtration efficiency of the existing coarse filter and solve the problem of low filtration efficiency of the existing coarse filter when the intake air volume of the engine is small; at the same time, the purpose of the utility model is also to provide A strainer and filter using the spinner assembly described above.

In order to solve the above problems, the rotator assembly of the utility model adopts the following technical solutions: the rotator assembly used for the coarse filter includes a casing, a dust collecting plate, a bracket and a rotator that is rotatably assembled on the bracket, and the rotator The transmission is connected with a motor.

The motor is fixed on the side of the bracket facing away from the rotator, and the output shaft of the motor is coaxially arranged with the rotating shaft of the rotator.

The coarse filter of the present utility model adopts the following technical solutions: a coarse filter, including an air intake cover with a swirl channel, a rotator assembly and at least one guide pipe, and the rotator assembly includes a shell, a dust collecting plate, a bracket And rotate the rotator assembled on the bracket, the rotator is connected with a motor; one end of the shell close to the rotator is sealed with the air intake cover, and the other end is sealed with the inlet of each draft tube.

The motor is fixed on the side of the bracket facing away from the rotator, and the output shaft of the motor is coaxially arranged with the rotating shaft of the rotator.

The filter of the utility model adopts the following technical solutions: a filter comprising a coarse filter and a fine filter, the coarse filter comprising an air intake cover with a swirl channel, a rotator assembly and at least one flow guide tube, The rotator assembly includes a casing, a dust collecting plate, a bracket and a rotator rotatably assembled on the bracket, the rotator is connected to a motor in transmission; the end of the casing close to the rotator is sealed with the air intake cover, The other end is sealingly connected with the inlet of each diversion pipe; the outlet of each diversion pipe is sealed and connected with the inlet of the fine filter.

The motor is fixed on the side of the bracket facing away from the rotator, and the output shaft of the motor is coaxially arranged with the rotating shaft of the rotator.

Since the rotator assembly of the utility model is equipped with a motor on the rotator, the rotating speed of the rotator can be artificially controlled instead of only relying on the intake air of the engine to drive the rotator. The wind pressure required for dust discharge is formed at the dust discharge port of the spinner assembly, which improves the dust discharge efficiency and solves the problem of low filtration efficiency of the existing cyclone coarse filter when the engine air intake is small.

Furthermore, the rotation shaft of the rotator is arranged coaxially with the output shaft of the motor, which is beneficial to ensure the smooth operation of the rotator, saves the space required inside the rotator assembly, and increases the compactness of the structure of the rotator assembly.

Since the rotator assembly of the coarse filter of the utility model is driven and provided with a motor on the rotator, the rotating speed of the rotator can be artificially controlled instead of only being driven by the intake air of the engine, and the rotator can be driven by the motor conveniently. The spinner makes the dust discharge outlet of the spinner assembly form the required wind pressure for dust discharge, improves the dust discharge efficiency, and solves the problem of low filtration efficiency of the existing coarse filter when the engine air intake is small.

Furthermore, the rotation shaft of the rotator is arranged coaxially with the output shaft of the motor, which is beneficial to ensure the smooth operation of the rotator, saves the space required inside the rotator assembly, and increases the compactness of the structure of the rotator assembly.

Since the rotator assembly of the filter of the present invention is driven and provided with a motor on the rotator, the rotating speed of the rotator can be controlled artificially instead of only relying on the intake air of the engine to drive the rotator. Drive the spinner so that the wind pressure required for dust discharge is formed at the dust discharge port of the spinner assembly, which improves the dust discharge efficiency, solves the problem of low filtration efficiency of the existing coarse filter when the engine air intake is small, and further solves the problem of the existing filter The problem of low filtration efficiency of the cleaner when the intake air volume of the engine is small.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of the rotator assembly of the present utility model;

Fig. 2 is the bottom view of Fig. 1;

Fig. 3 is the structural representation of embodiment 1 of the strainer of the present utility model;

Fig. 4 is a schematic structural view of Embodiment 1 of the filter of the present invention.

Detailed ways

Embodiment 1 of the rotator assembly of the present utility model, as shown in Figure 1-2, consists of a housing 4, a motor 5, a rotator 7, a rotating plate 8 arranged on the rotator 7, and is fixedly connected to the end of the rotating plate 8 (the end away from the spinner) scraper 9 and the dust collecting plate 6 fixedly connected to the inner wall of the housing. The housing 4 is composed of a rotator chamber 10 for accommodating the rotator and a motor chamber 11 for accommodating the motor 5. The rotator chamber 10 is in sealing connection with the motor chamber 11. The air intake cover is close to the port of one end of the swirl passage, and the motor cavity 11 has a port for sealing connection with the inlet of the draft tube; the dust collecting plate 6 is arc-shaped, and the dust collecting plate 6 is arranged on the rotating body of the housing. On the circumferential inner wall surface of the device chamber 10, one end of the dust collecting plate 6 along its arc direction fits with the inner wall surface of the housing 4, and the other end fits with the inner wall surface of the housing 4 in a gap, and the dust collecting plate 6 and the shell A dust collection chamber 12 is formed between the bodies 4, and the side of the dust collection chamber 12 away from the air intake cover 1 has a dust outlet 15 (the gap between the dust collection plate and the housing extends to the edge of the housing on the side away from the dust collection chamber A dust outlet 15 is formed, see Figure 2), a bracket 13 is provided at the adjoining place between the motor cavity 11 of the housing 4 and the rotator cavity 10, the bracket 13 includes the connecting parts at both ends and the supporting part between the two connecting parts, the bracket 13 The supporting part of the frame is U-shaped, and the bracket 13 is in the shape of a U with an everted edge as a whole. The motor 5 is fixed on the bracket 13 in the motor chamber 11 of the housing 4, wherein the output shaft of the motor 5 faces the rotator 7, and the motor 5 The axis of the output shaft of the rotator is collinear with the axis of rotation of the rotator 7, and the rotator 7 is connected with the output shaft of the motor 5 (in other embodiments, a rotating shaft can also be set on the rotator 7, and then the motor is connected by a coupling The output shaft of 5 is connected with the transmission of the rotator 7; there are four rotatable plates 8, which can be driven by the rotating airflow formed in the air intake cover to rotate the fan blades, and the four rotatable plates 8 diverge outward from the rotator 7 and are circumferentially The end of each rotating plate 7 (the end far away from the rotation axis of the rotator) is provided with a scraper 9, and the scraper 9 is used to remove dust and other sundries (intake air) falling into the housing 4 from the air intake cover. The swirl passage in the cover converts the incoming air into a swirling airflow, and the debris in the air is thrown out under the action of centrifugal force and falls into the spinner assembly shell along the wall of the swirl passage) into the dust collection chamber 12 and A wind pressure greater than the external atmospheric pressure is formed in the dust collection chamber 12, and dust and other sundries enter the dust collection chamber 12 and are discharged from the dust outlet under the action of the wind pressure; 5. The plug connector 14 plugged with the electric control device and the power supply.

In the above embodiment, the number of the rotating plate 8 and the corresponding scraper 9 may be more than three.

Embodiment 1 of the coarse filter of the present utility model, as shown in FIG. The circumferential wall of one end of the air intake cover 1 has an air intake hole section, and the air intake hole section is provided with an air intake hole 2, and the air sucked in when the engine is working enters the air intake cover through the air intake hole 2; There is a swirl channel 3 under the air inlet section inside. The swirl channel 3 is used to convert the air entering from the air inlet 2 into a swirling air flow and use the principle of centrifugal force to remove dust and other sundries in the air from the air. The rotator assembly 21 has the same structure as the rotator assembly in the above-mentioned embodiment; the rotator chamber of the rotator assembly 21 is sealed with the end of the air intake cover 1 near the swirl channel 3; its motor chamber is connected with the The inlets of each draft tube 22 are connected in a sealed manner. When the coarse filter of the present utility model is in use, the swirling flow channel 3 in the air intake cover 1 first converts the air inhaled by the engine into a swirling air flow, and dust and other sundries in the swirling air flow are under the action of centrifugal force during the rotation of the air flow. Separated from the gas, it is thrown to the wall of the swirl channel 3 and falls into the housing of the spinner assembly 21. When the suction volume of the engine is large enough, the swirling airflow formed can drive the rotating plate of the spinner assembly to rotate and drive the scraper assembly. When the plate forms a wind pressure greater than the external air pressure in the dust collection chamber, the spinner rotates under the action of the swirling airflow and completes the dust removal work. When the air intake of the engine is insufficient, the formed swirling airflow cannot drive the spinner When the rotating plate of the component rotates and drives the scraper to form a wind pressure greater than the external air pressure in the dust collection chamber, the motor can be turned on by setting the induction device and the control device, and the motor drives the rotator to complete the dust removal work.

Embodiment 1 of the filter of the present utility model, as shown in FIG. 4 , consists of a coarse filter 51 and a fine filter 53 . Wherein, the structure of the coarse filter 51 is the same as the structure of the coarse filter in the above-mentioned embodiments, and the outlet of the draft pipe of the coarse filter 51 is in sealing connection with the inlet of the fine filter 53 .

Claims (6)

1. A rotator assembly, including a casing, a dust collecting plate, a bracket and a rotator rotatably assembled on the bracket, characterized in that the rotator is connected with a motor for transmission. 2 . The rotator assembly according to claim 1 , wherein the motor is fixed on the side of the bracket facing away from the rotator, and the output shaft of the motor is arranged coaxially with the rotating shaft of the rotator. 3 . 3. A coarse filter, comprising an air inlet cover with a swirl passage, a rotator assembly and at least one draft tube, the rotator assembly includes a shell, a dust collecting plate, a support and a rotating assembly mounted on the support The rotator is characterized in that: the rotator is connected with a motor; one end of the housing close to the rotator is sealed with the air intake cover, and the other end is sealed with the inlet of each draft tube. 4 . The coarse filter according to claim 3 , wherein the motor is fixed on the side of the bracket facing away from the rotator, and the output shaft of the motor is arranged coaxially with the rotating shaft of the rotator. 5. A filter, comprising a coarse filter and a fine filter, the coarse filter includes an air intake cover with a swirl passage, a spinner assembly and at least one draft tube, and the spinner assembly includes a housing, a collector The dust board, the bracket, and the rotator rotatably assembled on the bracket are characterized in that: the rotator is connected with a motor; one end of the shell close to the rotator is sealed with the air intake cover, and the other end is connected with each guide The inlet of the pipe is sealed and connected; the outlet of each guide pipe is sealed and connected with the inlet of the fine filter. 6 . The filter according to claim 5 , wherein the motor is fixed on a side of the bracket facing away from the rotator, and the output shaft of the motor is arranged coaxially with the rotating shaft of the rotator.

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