CN213527882U - Driving mechanism of dust removal device - Google Patents

Abstract

The utility model provides a dust collector's actuating mechanism belongs to environmental protection equipment technical field. Dust collector includes the pipy shell that removes dust and rotates the pivot of connection on the shell that removes dust, actuating mechanism is including the fixed installation section of thick bamboo that sets up on the shell that removes dust, the pivot is rotated and is connected in an installation section of thick bamboo, threaded connection has the axle sleeve that is located an installation section of thick bamboo in the pivot, the axle sleeve is connected with a ejector pad through one-way bearing outward, the fixed permanent magnetism piece that is provided with two symmetric distribution of one end of ejector pad, the fixed one end that is close to the permanent magnetism piece on the installation section of thick bamboo is provided with the permanent magnetism piece one-to-one, the absorption piece of iron, the fixed iron plate that is provided with of the other end of ejector pad, the fixed electromagnetic construction that is provided with and corresponds with the iron plate that is close to the one end of iron plate on the installation. The utility model has the advantages of the rotating precision of the rotating shaft is high.

Description

Driving mechanism of dust removal device

Technical Field

The utility model belongs to the technical field of the environmental protection equipment, a dust collector's actuating mechanism is related to.

Background

The filtration type waste gas dust removal is a commonly adopted high-efficiency dust removal mode, but has the characteristic of short maintenance period, and the filtration structure (such as a filter screen, a filter bag and the like) needs to be frequently replaced or cleaned according to the filtration condition. As a deep defect, the dust removal effect gradually weakens along with the extension of the service time of a filter bag or a filter screen, so that in a dust removal system with higher requirements, the filtering type dust removal is generally provided with multiple stages, and the filtering type dust removal is performed layer by gradually reducing filtering holes, so that a better filtering effect and a longer cleaning and maintenance period are realized.

The reason that the analysis dust removal system has a complex structure and the dust removal effect is weakened along with the lapse of the service time is as follows: the filter screen etc. separate and keep off the separation structure and can not realize real-time reverse washing to what make filtration structure's filtration pore can not set up is too little, needs the mode gradual reduction filtration pore step by step many times in order to treat the filtering granule and carry out classified screening, and based on this, this scheme improves and breaks through it.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that prior art exists, provide a dust collector's actuating mechanism, the utility model aims to solve the technical problem how guaranteeing the accurate rotation of pivot intermittent type nature.

The purpose of the utility model can be realized by the following technical proposal: a driving mechanism of a dust removing device is characterized in that the dust removing device comprises a tubular dust removing shell and a rotating shaft which is rotatably connected to the dust removing shell, the driving mechanism comprises an installation barrel which is fixedly arranged on the dust removing shell, the rotating shaft is rotatably connected in the installation barrel, the rotating shaft is in threaded connection with a shaft sleeve which is positioned in the installation barrel, the outside of the shaft sleeve is connected with a push block through a one-way bearing, one end of the push block is fixedly provided with two permanent magnets which are symmetrically distributed, one end of the installation barrel, which is close to the permanent magnets, is fixedly provided with iron adsorption blocks which are in one-to-one correspondence with the permanent magnets, the other end of the push block is fixedly provided with an iron block, one end of the installation barrel, which is close to the iron block, is fixedly provided with an electromagnetic structure which corresponds to the iron block, a reset spring is connected between the installation barrel and the push block, the inner wall of, the push block can drive the rotating shaft to rotate 90 degrees in the process of running towards one end of the permanent magnetic strip.

Can adsorb the iron plate when the electromagnetic structure circular telegram, make ejector pad compression reset spring, in this process, because the spacing action of the separation of one-way bearing and guide slot, the pivot irrotational, the removal of ejector pad can not order about the pivot rotation, the pivot keeps former phase invariant, when the electromagnetic structure outage, reset spring releases the restoring force, make the ejector pad remove to the direction that adsorbs the piece, until permanent magnetism piece and adsorption block adsorb, in this process, one-way bearing is in the locking state, the removal of ejector pad can drive the pivot rotatory, and rotatory angle is about 90. In the operation process of the push block, the adsorption force of the electromagnetic structure is increased along with the increase of the compression degree of the reset spring, the position of the push block is kept unchanged when the electromagnetic structure adsorbs an iron block, after the electromagnetic structure is powered off, the reset spring resets to enable the push block to move reversely, in the moving process, the reset spring is gradually changed from compression to stretching, the longer the stretching is, the greater the attraction force between the permanent magnet block and the adsorption block is, and when the electromagnetic structure is up to a limit position, the adsorption force is the largest, so that the position of the push block is kept, and the two limit positions of the push block can be ensured to have higher reliability.

Drawings

Fig. 1 is a schematic structural view of a dust removing apparatus when filtering is performed using an inner side surface of a filter screen.

Fig. 2 is a schematic structural diagram of the dust removing device when cleaning the inner side surface of the filter screen.

Fig. 3 is a schematic structural view of the dust removing device when filtering by using the outer side surface of the filter screen.

Fig. 4 is a schematic structural diagram of the dust removing device when cleaning the outer side surface of the filter screen.

Fig. 5 is a sectional view taken along the line a-a in fig. 4.

Fig. 6 is an enlarged view of a portion B in fig. 5.

Fig. 7 is a cross-sectional view in the direction C-C in fig. 6.

In the figure, 1, a dust removal shell; 2. a rotating shaft; 31. a main air inlet pipe; 32. a main exhaust pipe; 33. an auxiliary air inlet pipe; 34. an auxiliary exhaust pipe; 35. a bypass pipe; 41. filtering with a screen; 42. A baffle plate; 43. a first notch; 44. a second notch; 45. a third notch; 5. a filter bag; 61. mounting the cylinder; 62. a shaft sleeve; 63. a push block; 64. permanent magnet blocks; 65. an adsorption block; 66. an iron block; 67. an electromagnetic structure; 68. a return spring; 69. and a guide groove.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 5, the dust removing device comprises a tubular dust removing housing 1 and a rotating shaft 2 rotatably connected to the dust removing housing 1, wherein a main air inlet pipe 31, a main exhaust pipe 32, an auxiliary air inlet pipe 33 and an auxiliary exhaust pipe 34 are connected to the side wall of the dust removing housing 1, the main air inlet pipe 31, the main exhaust pipe 32, the auxiliary air inlet pipe 33 and the auxiliary exhaust pipe 34 are circumferentially and uniformly arranged outside the dust removing housing 1, the main air inlet pipe 31 and the main exhaust pipe 32 are positioned on the same straight line, the auxiliary air inlet pipe 33 is communicated with the middle part of the main air inlet pipe 31 through a bypass pipe 35, and the air outlet end of the auxiliary exhaust;

an arc-shaped filter screen 41 with a first notch 43 is fixedly arranged on the rotating shaft 2, the arc angle of the filter screen 41 is 240-340 degrees, two arc-shaped baffles 42 are arranged on the outer side of the filter screen 41, a second notch 44 and a third notch 45 are formed between the two baffles 42, the second notch 44 is positioned on the outer side of the first notch 43, and a gap is formed between the filter screen 41 and the baffles 42;

the rotating shaft 2 is connected with a driving mechanism which can drive the rotating shaft 2 to rotate.

The driving mechanism can drive the rotating shaft 2 to rotate, namely the filter screen 41 and the two baffles 42 can synchronously rotate, as shown in fig. 1, when the first notch 43 and the second notch 44 are positioned at the positions opposite to the air outlet end of the main air inlet pipe 31, the outlet of the auxiliary air inlet pipe 33 and the inlet of the auxiliary air outlet pipe 34 are respectively blocked by the two baffles 42, the waste gas to be filtered enters the main air outlet pipe 32 through the first notch 43, the second notch 44 and the inner side surface of the filter screen 41 and passes through the filter screen 41, after a period of operation, filter residues can block part of filter holes on the inner wall of the filter screen 41, at this time, in order to ensure the filtering efficiency and the filtering effect, the driving mechanism drives the rotating shaft 2 to rotate by 90 degrees as shown in fig. 2, at this time, the outlet of the main air inlet pipe 31 and the inlet of the main air outlet pipe 32 are respectively blocked by the two baffles 42, the waste gas passes through the filter screen 41 and enters the dust removal shell 1, and finally is discharged by the auxiliary exhaust pipe 34 and enters the filter bag 5, in the process, the waste gas reversely washes the outer wall of the filter screen 41, so that filter residues on the inner wall of the filter screen 41 and blocking filter holes are cleaned to the filter bag 5;

as shown in fig. 3, after the filter residue on the inner side of the filter screen 41 is washed backward, the driving mechanism drives the rotating shaft 2 to rotate again by 90 ° according to the previous rotating direction, at this time, the outlet of the auxiliary air inlet pipe 33 and the inlet of the auxiliary exhaust pipe 34 are respectively blocked by two baffles 42, the exhaust gas to be filtered enters the dust removing housing 1 through the filter screen 41 and enters the main exhaust pipe 32 through the third notch 45 after passing through the first notch 43, the second notch 44 and the outer side of the filter screen 41, after a period of operation, the filter residue blocks part of the filter holes on the outer wall of the filter screen 41, in order to ensure the filtering efficiency and the filtering effect, the driving mechanism drives the rotating shaft 2 to rotate by 90 °, as shown in fig. 4, at this time, the outlet of the main air inlet pipe 31 and the inlet of the main exhaust pipe 32 are respectively blocked by two baffles 42, the exhaust gas to be filtered, after passing through the filter screen 41, the exhaust gas enters the auxiliary exhaust pipe 34 from the third notch 45, and finally the exhaust gas is discharged from the auxiliary exhaust pipe 34 and enters the filter bag 5, and in the process, the inner wall of the filter screen 41 is reversely washed by the waste gas, so that filter residues which are positioned on the outer wall of the filter screen 41 and block the filter holes are cleaned into the filter bag 5.

In the whole process, the auxiliary air inlet pipe 33 and the filter bag 5 are matched only for cleaning the filter screen 41, and the main air outlet pipe 32 is mostly used for discharging filtered air. It can be seen that, through the cooperation of filter bag 5 and filter screen 41, this dust collector can ensure that filter screen 41 maintains better filter effect and permeability, ensures exhaust-gas treatment's efficiency, and the inside and outside side of filter screen 41 carries out reverse washing through waste gas respectively when filtering quality descends, because the flow of waste gas is minimum among the reverse washing process, and the filter residue that this in-process waste gas effect formed on reverse washing face's the another side can be ignored.

Because the filter efficiency requirement of the filter bag 5 in the filter device is extremely low, and the single-time waste gas filtering amount is also extremely small, the cleaning and replacing period of the filter bag 5 can be greatly prolonged.

The driving mechanism is a speed reducing motor which drives the rotating shaft 2 to rotate at a uniform speed.

The driving mechanism is a stepping motor which drives the rotating shaft 2 to rotate in a one-way inching mode, and the single rotation angle of the stepping motor is 90 degrees.

As shown in fig. 5, 6 and 7, the driving mechanism includes a mounting tube 61 fixedly disposed on the dust removing housing 1, the rotating shaft 2 is rotatably connected in the mounting tube 61, a shaft sleeve 62 disposed in the mounting tube 61 is connected to the rotating shaft 2 by a thread, a push block 63 is connected to the outside of the shaft sleeve 62 by a one-way bearing, two permanent magnets 64 symmetrically distributed are fixedly disposed at one end of the push block 63, one end of the mounting tube 61 close to the permanent magnets 64 is fixedly disposed with a one-to-one correspondence with the permanent magnets 64, iron adsorbs piece 65, the other end of ejector pad 63 is fixed and is provided with an iron plate 66, the one end that is close to iron plate 66 on the installation section of thick bamboo 61 is fixed and is provided with the electromagnetic structure 67 that corresponds with iron plate 66, be connected with a reset spring 68 between installation section of thick bamboo 61 and the ejector pad 63, be equipped with the guide slot 69 that carries out guiding orientation to ejector pad 63 on the inner wall of installation section of thick bamboo 61, ejector pad 63 can order about pivot 2 rotatory 90 to the in-process of permanent magnetic stripe one end operation.

The electromagnetic structure is a structure which is wound with an electrified coil to generate an electromagnetic field and can generate adsorption force with an iron block.

Can adsorb iron plate 66 when electromagnetic structure 67 circular telegram, make ejector pad 63 compress reset spring 68, in this process, because the separation of one-way bearing and the limiting displacement of guide slot 69, pivot 2 irrotational, the removal of ejector pad 63 can not order about pivot 2 rotatory, pivot 2 keeps former phase unchanged, when electromagnetic structure 67 cuts off the power supply, reset spring 68 releases the restoring force, make ejector pad 63 remove to the direction that adsorbs piece 65, until permanent magnet 64 adsorbs with adsorbing piece 65, in this process, one-way bearing is in the locking state, the removal of ejector pad 63 can drive pivot 2 rotatory, and rotatory angle is about 90. In the operation process of the pushing block 63, the adsorption force of the electromagnetic structure 67 is increased along with the increase of the compression degree of the return spring 68, so that the position of the pushing block 63 held by the pushing block 63 is ensured to be unchanged when the electromagnetic structure 67 adsorbs the iron block 66, after the electromagnetic structure 67 is powered off, the return spring 68 is reset to enable the pushing block 63 to move reversely, in the moving process, the return spring 68 is gradually changed from compression to stretching, the longer the stretching is, the greater the attraction force between the permanent magnet block 64 and the adsorption block 65 is, and when the pushing block reaches a limit position, the maximum adsorption force is realized, so that the position of the pushing block 63 is kept, and thus, the two limit positions of the pushing block 63 can have higher reliability.

So relapse, can make 2 one-way inching of pivot, and the angle of rotatory at every turn is 90 to the intercommunication of cooperation gas circuit.

The dust removal method comprises the following steps: the driving mechanism drives the rotating shaft 2 to rotate intermittently, the angle of each rotation is 90 degrees, and the time for the rotating shaft 2 to pause in the unblocked state of the main exhaust pipe 32 is longer than the time for the rotating shaft 2 to pause in the unblocked state of the auxiliary exhaust pipe 34. The filter bag is replaced when the auxiliary exhaust pipe is plugged by the baffle.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (1)

1. The driving mechanism of the dust removing device is characterized in that the dust removing device comprises a tubular dust removing shell (1) and a rotating shaft (2) which is rotatably connected onto the dust removing shell (1), the driving mechanism comprises an installation barrel (61) which is fixedly arranged on the dust removing shell (1), the rotating shaft (2) is rotatably connected into the installation barrel (61), a shaft sleeve (62) which is positioned in the installation barrel (61) is connected onto the rotating shaft (2) in a threaded manner, a push block (63) is connected to the outside of the shaft sleeve (62) through a one-way bearing, two permanent magnets (64) which are symmetrically distributed are fixedly arranged at one end of the push block (63), one end of the installation barrel (61) which is close to the permanent magnets (64) is fixedly provided with iron adsorption blocks (65) which are in one-to-one correspondence with the permanent magnets (64), and the other end of the push block (63) is fixedly provided with an iron block, the installation section of thick bamboo (61) are gone up the fixed electromagnetic structure (67) that are provided with and correspond with iron plate (66) of one end that is close to iron plate (66), be connected with a reset spring (68) between installation section of thick bamboo (61) and ejector pad (63), be equipped with guide slot (69) that carry out the direction location to ejector pad (63) on the inner wall of installation section of thick bamboo (61), ejector pad (63) can order about pivot (2) rotation 90 to the in-process of permanent magnetic strip one end operation.

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