CN112676222B

CN112676222B - Through hole cleaning device for flywheel housing

Info

Publication number: CN112676222B
Application number: CN202011454117.9A
Authority: CN
Inventors: 乐红
Original assignee: Hubei Norbert Technology Co ltd
Current assignee: Hubei Norbert Technology Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-06-28
Anticipated expiration: 2040-12-10
Also published as: CN112676222A

Abstract

The invention discloses a through hole cleaning device for a flywheel casing, which comprises a driving device, wherein the driving device comprises an output rotating shaft, and the through hole cleaning device is characterized by further comprising an air bag arranged at the open end of the output rotating shaft, cleaning cloth used for cleaning through holes in the flywheel casing is arranged on the outer side of the air bag, a micro air pump is arranged on the driving device, a movable sealing assembly is arranged at one end, connected with the driving device, of the output rotating shaft, a sealing cavity is formed between the movable sealing assembly and the output rotating shaft, the micro air pump is connected with the sealing cavity through a first air channel, and the sealing cavity is communicated with the air bag through a second air channel. The through hole cleaning device for the flywheel shell provided by the invention can respectively control the driving motor and the micro air pump to start through the composite triggering mechanism, so that the mounting through hole on the flywheel shell is cleaned, the efficiency is higher, the operation is simple, and the labor cost is reduced.

Description

Through hole cleaning device for flywheel housing

Technical Field

The invention relates to a flywheel housing processing technology, in particular to a through hole cleaning device for a flywheel housing.

Background

Before the flywheel housing is taken out of a warehouse and packaged, the flywheel housing needs to be washed, coated with anti-rust oil, dried on the surface and the like, generally, before the flywheel housing enters a drying box, cleaning cloth is needed to be dipped in cleaning liquid, and then the cleaning cloth is inserted into an installation through hole in the flywheel housing to be cleaned, so that paint or impurities in the installation hole can be avoided; in the prior art, manual wiping is mainly used, and obviously, the manual wiping efficiency is low and the effect is poor. There are also automatic wiping devices with partial through holes, but the structure is complex and the applicability is poor.

For example, the granted publication number "CN 206747160" entitled chinese patent of a through hole wiping device, discloses: the cleaning device comprises a liquid storage tank, a detection rack, a machine table and a jig arranged on the table board of the machine table, wherein the jig is used for positioning a screen protection cover plate to be cleaned, the detection rack is positioned on the jig and can move back and forth along the horizontal direction, a cleaning head and an air nozzle connected with an air supply device are arranged at the bottom of the detection rack, the liquid storage tank is used for providing cleaning liquid for the cleaning head, the detection rack can be respectively moved to a position B and a position C along the horizontal direction to stop, the cleaning head is aligned with a through hole to be cleaned when the detection rack stops at the position B, the air nozzle is aligned with or close to the through hole to be cleaned when the detection rack stops at the position C, the air nozzle can blow air to the through hole when the detection rack stops at the position C, the through hole area of the screen protection cover plate positioned on the jig is in a suspension state, so that air sprayed by the air nozzle can pass through the through hole from top to bottom along the thickness direction of the screen protection cover plate to take away most of impurities, the wiping head can be lifted, so that after the wiping head obtains wiping liquid and the air nozzle blows air to the through hole, the detection rack can be lowered into the through hole or attached to the end face of the through hole to wipe the through hole when stopping at the position B. The through hole wiping device in the prior art is difficult to be suitable for wiping the through hole of the flywheel housing.

The defects of the prior art are that the installation through holes on the flywheel shell are cleaned by wiping mainly manually, obviously, the manual wiping efficiency is low, the effect is poor, and an automatic wiping device with partial through holes is also provided, but the structure is complex and the applicability is poor.

Disclosure of Invention

The invention aims to provide a through hole cleaning device for a flywheel shell, which is used for solving the defects in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme: a through hole cleaning device for a flywheel shell comprises a driving device, wherein the driving device comprises an output rotating shaft and an air bag arranged at the open end of the output rotating shaft, and cleaning cloth used for cleaning through holes in the flywheel shell is arranged on the outer side of the air bag;

a miniature air pump is arranged on the driving device, a dynamic sealing assembly is arranged at one end of the output rotating shaft, which is connected with the driving device, and a sealing cavity is formed between the dynamic sealing assembly and the output rotating shaft;

the miniature air pump is connected with the sealing cavity through the first air channel, and the sealing cavity is communicated with the air bag through the second air channel.

Preferably, the output rotating shaft comprises a transmission shaft and a power shaft, a connecting rod is fixedly mounted at one end of the transmission shaft, the transmission shaft is connected with the power shaft in a fixed mode, the power shaft is internally formed with the second gas channel, and the transmission shaft is located in the sealed cavity. Specifically, the open end of the air bag is fixedly communicated with the power shaft.

Preferably, a fixed sleeve is fixedly mounted at one end of the driving device, the dynamic seal assembly comprises a seal sleeve, a first thrust bearing and a second thrust bearing, the seal sleeve is fixedly mounted in the fixed sleeve, and the first thrust bearing and the second thrust bearing are respectively and fixedly mounted on the outer walls of two opposite sides of the seal sleeve;

the output rotating shaft further comprises a driving shaft, the driving shaft is driven by a driving motor in the driving device, the driving shaft is fixedly connected with the side wall of the first thrust bearing, the driving shaft is rotatably connected with the sealing sleeve through the first thrust bearing, one end of the power shaft is movably arranged in the fixing sleeve, one end of the power shaft is fixedly arranged on the side wall of the second thrust bearing, and the power shaft is rotatably connected with the sealing sleeve through the second thrust bearing;

one end of the transmission shaft, which is far away from the connecting rod, is fixedly arranged on the side wall of the driving shaft.

Preferably, a composite trigger assembly is arranged on the driving device, the composite trigger assembly comprises an instant trigger assembly and a delay trigger assembly, the instant trigger assembly comprises a first rack, a first contact and a first incomplete gear, a rotating shaft is arranged in the driving device in a rotating manner, the first incomplete gear is fixedly sleeved on the rotating shaft, the first rack is horizontally arranged in the driving device in a sliding manner and is in transmission fit with the first incomplete gear, and the first contact is fixedly arranged at one end of the first rack;

The time delay trigger assembly comprises a second rack, a second contact and a second incomplete gear, the second rack is fixedly installed on the outer wall of the rotating shaft and is in transmission fit with the second incomplete gear, the tooth-shaped structures of the first incomplete gear and the second incomplete gear are arranged in a staggered mode, and the second contact is fixedly installed at one end of the second rack.

Preferably, the composite trigger assembly further comprises an acceleration gear set and a transmission rack, the transmission rack is meshed with an input gear of the acceleration gear set, and an output gear of the acceleration gear set drives the rotating shaft; the driving device is horizontally provided with a control button, and one end of the transmission rack is fixedly arranged on the side wall of the control button.

Preferably, the accelerating gear set comprises a second gear, a third gear and a first gear, wherein the first gear is an input gear, and the third gear is an output gear; the first gear and the second gear are movably arranged in the driving device respectively, the third gear is fixedly arranged on the transmission shaft, the second gear is meshed with the third gear and the first gear respectively, and the transmission rack is meshed with the first gear.

Preferably, the cleaning cloth is detachably attached to the airbag.

Preferably, the outer wall of the air bag is provided with a fixing strip, and the cleaning cloth is wound on the outer side of the fixing strip.

Preferably, the dynamic seal assembly further comprises two movable sealing elements, and the two movable sealing elements are fixedly arranged in the fixed sleeve.

Preferably, a lower concave surface is formed in the middle of the peripheral side of the airbag.

In the technical scheme, the through hole cleaning device for the flywheel housing, provided by the invention, has the beneficial effects that:

according to the invention, the driving device is arranged, the movable sealing assembly is arranged on the driving device, the conveying rotating shaft of the driving device is connected with the air bag through the movable sealing assembly, the micro air pump is communicated with the air bag through the movable sealing assembly, and the driving device and the micro air pump are respectively controlled to start, so that the mounting through hole in the flywheel shell is cleaned, the efficiency is high, the operation is simple, and the labor cost is reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic structural diagram provided in an embodiment of the present invention;

FIG. 2 is a schematic view of another structure with a view angle according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a front view structure provided in the embodiment of the present invention;

FIG. 4 is a schematic diagram of an enlarged structure at A according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a front view of a composite trigger mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an output shaft according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of the composite trigger mechanism according to the embodiment of the present invention when not in use;

FIG. 8 is a schematic structural diagram illustrating another perspective of the composite trigger mechanism when not in use according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram illustrating a composite trigger mechanism moving a certain position according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a composite trigger mechanism according to an embodiment of the present invention, in which a first contact and a second contact are in contact with a first contact and a second contact;

Fig. 11 is a schematic structural diagram of the composite trigger mechanism provided in the embodiment of the present invention without the first gear and the transmission rack.

Description of the reference numerals:

1. a drive device; 101. a control button; 2. a flywheel housing; 3. fixing the sleeve;

4. an output shaft; 401. a drive shaft; 402. a drive shaft; 403. a power shaft; 4021. a connecting rod; 4031. a circulation tank; 5. an air bag; 501. a fixing strip;

6. a micro air pump; 601. a first gas passage; 7. a first thrust bearing; 701. a second thrust bearing; 8. a movable seal;

9. a first rack; 901. a first contact; 902. a first incomplete gear;

10. a second rack; 1001. a second contact; 1002. a second incomplete gear;

11. a first gear; 1101. a drive rack; 12. a second gear; 13. a rotating shaft; 1301. a third gear; 14. the sleeve is sealed.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Referring to fig. 1-11, a through hole cleaning device for a flywheel housing according to an embodiment of the present invention includes a driving device 1, the driving device includes an output shaft 4, and further includes an air bag 5 disposed at an open end of the output shaft 4, a cleaning cloth for cleaning a through hole on a flywheel housing 2 is disposed at an outer side of the air bag 5, a micro air pump 6 is disposed on the driving device 1, a dynamic seal assembly is disposed at an end of the output shaft 4 connected to the driving device 1, and a seal cavity is formed between the dynamic seal assembly and the output shaft 4, in this embodiment, a seal cavity is disposed at a contact portion of the dynamic seal assembly and an outer wall surface of the output shaft, that is, at least one dynamic seal structure is disposed at each of two sides of the seal cavity, the micro air pump 6 is connected to the seal cavity through a first air passage 601 such as a pipe, and the seal cavity is communicated with the air bag 5 through a second air passage such as an inner passage on the output shaft, the middle department of 5 week sides of gasbag forms concave surface down, concave surface joint is on waiting to wash the pore wall of through-hole down during wiping, the setting up of lower concave surface can increase the stability of washing cloth winding on gasbag 5 on the one hand, on the other hand can be convenient for gasbag 5 inject in the through-hole, and when wasing, it is relatively stable, the volume after the gasbag 5 shrink is less than the volume of the mounting hole on the bell housing 2, can be convenient for inject the washing cloth of gasbag 5 and outer parcel in the mounting hole, and is concrete, the open end and the fixed intercommunication of power shaft 403 of gasbag 5.

In this embodiment, the output rotating shaft 4 includes a transmission shaft 402 and a power shaft 403, a connecting rod 4021 is fixedly installed at one end of the transmission shaft 402, the transmission shaft 402 is fixedly connected with the power shaft 403 through the connecting rod 4021, a second gas passage is formed inside the power shaft 403, and the transmission shaft 402 is located in the sealing cavity; one end of the driving device 1 is fixedly provided with a fixed sleeve 3, the fixed sleeve, the transmission shaft 402, the power shaft 403 and the movable sealing element enclose the sealing cavity, the movable sealing assembly comprises a sealing sleeve 14, a first thrust bearing 7 and a second thrust bearing 701, the sealing sleeve 14 is fixedly arranged in the fixed sleeve 3, and the first thrust bearing 7 and the second thrust bearing 701 are respectively and fixedly arranged on the outer walls of two opposite sides of the sealing sleeve 14; the output rotating shaft 4 further comprises a driving shaft 401, the driving shaft 401 is driven by a driving motor in the driving device, the driving shaft 401 is fixedly connected with the side wall of the first thrust bearing 7, the driving shaft 401 is rotatably connected with the sealing sleeve 14 through the first thrust bearing 7, one end of the power shaft 403 is movably installed in the fixing sleeve 3, one end of the power shaft 403 is fixedly installed on the side wall of the second thrust bearing 701, and the power shaft 403 is rotatably connected with the sealing sleeve 14 through the second thrust bearing 701; one end of the transmission shaft 402, which is far away from the connecting rod 4021, is fixedly mounted on a side wall of the driving shaft 401, specifically, a left half of the first thrust bearing 7 is fixedly connected with the driving shaft 401, a right half of the first thrust bearing is fixedly connected with the sealing sleeve 14, meanwhile, a left half of the second thrust bearing 701 is fixedly connected with the sealing sleeve 14, a right half of the second thrust bearing 701 is fixedly connected with the power shaft 403, then the transmission shaft 402 passes through the first thrust bearing 7 and the second thrust bearing 701 to be fixedly connected with the driving shaft 401, when the driving motor rotates, the left half of the first thrust bearing 7 fixedly connected with the driving shaft 401 and the right half of the second thrust bearing 701 fixedly connected with the power shaft 403 are driven to rotate, and one end of the transmission shaft 402, which is far away from the connecting rod 4021, is fixedly mounted on a side wall of the driving shaft 401.

Further, be equipped with compound trigger assembly on drive arrangement 1, compound trigger assembly includes instant trigger assembly and time delay trigger assembly, instant trigger assembly includes first rack 9, first contact 901 and first incomplete gear 902, the internal rotation of drive arrangement 1 is provided with axis of rotation 13, first incomplete gear 902 is fixed to be cup jointed on axis of rotation 13, first rack 9 horizontal slip sets up in drive arrangement 1, and with first incomplete gear 902 transmission fit, first contact 901 fixed mounting is in the one end of first rack 9. Through the setting of compound trigger subassembly, can start driving motor in miniature air pump 6 and the drive arrangement, can be when the user will wash the sleeve and inject the installation through-hole in, press control button 101, control button 101 accessible compound trigger subassembly drives miniature air pump 6 at first and starts, miniature air pump 6 ventilates in through second passageway looks gasbag 5, swell gasbag 5, then when continuing to press control button 101, can start driving motor in the drive arrangement and drive the rotation of output pivot, it is rotatory to drive gasbag 5, clear up in the installation through-hole.

Furthermore, the time delay triggering assembly includes a second rack 10, a second contact 1001 and a second incomplete gear 1002, the second rack 10 is fixedly installed on the outer wall of the rotating shaft 13 and is in transmission fit with the second incomplete gear 1002, the tooth-shaped structures of the first incomplete gear 902 and the second incomplete gear 1002 are arranged in a staggered manner, the second contact 1001 is fixedly installed at one end of the second rack 10, in an initial position, as shown in fig. 7, the first rack 9 is meshed with the first incomplete gear 902, the second rack 10 is not meshed with the second gear 12, after a certain time of coaxial rotation, the first rack 9 is separated from the first incomplete gear 902, the second rack 10 is meshed with the second gear 12, the second triggering assembly includes the second rack 10, the second contact 1001 and the second incomplete gear 1002, the second rack 10 is fixedly installed on the outer wall of the rotating shaft 13 and is in transmission fit with the second incomplete gear 1002, the second contact 1001 is fixedly arranged at one end of the second rack 10, the first contact 901 is connected with a power supply for controlling the micro air pump 6 through a lead, a first contact corresponding to the first contact 901 is arranged in the driving device 1, a switch device of the micro air pump 6 is arranged at the tail of the first contact, the first contact is in an open state when being pressed, when the first contact 901 is in contact with the first contact, the micro air pump 6 is powered on, namely, the micro air pump 6 is started, the second contact 1001 is connected with the power supply for controlling the driving motor through a lead, a second contact corresponding to the second contact 1001 is arranged in the driving device 1, the second contact is a switch device of the driving motor, and when the second contact 1001 is in contact with the second contact, the driving motor is powered on, namely, the driving motor is started to rotate.

In a further proposed scheme of the present invention, the composite triggering assembly further includes an acceleration gear set and a transmission rack 1101, the transmission rack 1101 is engaged with an input gear of the acceleration gear set, and an output gear of the acceleration gear set drives the rotating shaft 13; a control button 101 is horizontally arranged on the driving device 1, and one end of a transmission rack 1101 is fixedly arranged on the side wall of the control button 101; the acceleration gear set comprises a second gear 12, a third gear 1301 and a first gear 11, wherein the first gear 11 is an input gear, and the third gear 1301 is an output gear; the first gear 11 and the second gear 12 are movably arranged in the driving device 1 respectively, the third gear 1301 is fixedly installed on the transmission shaft 402, the second gear 12 is meshed with the third gear 1301 and the first gear 11 respectively, the transmission rack 1101 is meshed with the first gear 11, the accelerating gear set can increase the rotation amount of the rotating shaft 13 in the distance equivalent to the movement of the transmission rack 1101, a spring is arranged between the control button 101 and the driving device 1, and the control button 101 can be rebounded to the initial position after being pressed and loosened by the elastic force of the spring.

In the embodiment provided by the invention, the cleaning cloth can be detachably connected to the air bag 5, specifically, the fixing strip 501 is arranged on the outer wall of the air bag 5, and the cleaning cloth is wound on the outer side of the fixing strip 501, so that the friction force between the cleaning cloth and the air bag 5 can be increased and the friction force between the air bag 5 and the cleaning cloth can be reduced during cleaning.

In a further embodiment of the present invention, the dynamic seal assembly further includes two movable sealing elements 8, and the two movable sealing elements 8 are fixedly disposed in the fixed sleeve 3, the movable sealing elements 8 are respectively disposed on two sides of the sealing sleeve 14, i.e. forming a sealing cavity, the movable sealing elements 8 are common knowledge and conventional technical means in the prior art, such as a forming packing seal, a stuffing box seal and an expanding ring seal, and the movable sealing elements 8 are disposed to prevent gas from leaking outwards between the first thrust bearing 7 and the second thrust bearing 701.

When the invention needs to clean the installation through hole on the flywheel housing 2, firstly, a worker holds the device by hand, the airbag 5 is inserted into the installation through hole on the flywheel, then the worker presses the control button 101, the control button 101 drives the transmission rack 1101 connected with the control button 101 to horizontally move towards the direction of the first gear 11, so as to drive the first gear 11 engaged with the first gear 11 to rotate, the first gear 11 drives the second gear 12 and the third gear 1301 engaged with the second gear to rotate, so as to drive the rotating shaft 13 to rotate, the rotating shaft 13 simultaneously drives the first incomplete gear 902 and the second incomplete gear 1002 connected with the first gear 11 and the second incomplete gear 1002 to rotate, because the teeth of the first incomplete gear 902 and the second incomplete gear 1002 are staggered, the first rack 9 is engaged with the first incomplete gear 902, and at the moment, the second rack 10 is not engaged with the second incomplete gear 1002, so as to rotate the first incomplete gear 902 and the second incomplete gear 1002, firstly, the meshed first rack 9 is driven to horizontally slide forward for a certain distance, along with the movement of the first rack 9, the first rack 9 is separated from the first incomplete gear 902, meanwhile, the second incomplete gear 1002 is meshed with the second rack 10, at this time, the first contact 901 on the first rack 9 is contacted with the contact connected with the micro air pump 6, the power supply for controlling the micro air pump 6 is switched on, the micro air pump 6 starts to operate, the micro air pump 6 inflates the sealing sleeve 14 through the communicated air pipe, then the air enters the air bag 5 through the circulation groove 4031 formed in the power shaft 403, the air bag 5 is inflated, meanwhile, the cleaning cloth on the outer side is also driven to be fully contacted with the mounting through hole on the flywheel shell 2 when being inflated, then the control button 101 is continuously pressed, the control button 101 drives the connected transmission rack 1101 to continuously transmit, thereby driving the rotating shaft 13 to continuously rotate, at the moment, the second rack 10 engaged with the second incomplete gear 1002 is driven to slide, the second rack 10 slides horizontally, after sliding for a certain distance, the second rack 10 is still engaged with the second incomplete gear 1002 at the moment, the second contact 1001 on the second rack 10 is contacted with the contact connected with the driving motor, the power supply for controlling the rotation of the driving motor is switched on, the driving motor starts to rotate, the driving motor rotates to drive the connected driving shaft 401 to rotate, so that the driving shaft 401 drives the fixedly connected driving shaft 402 and the connecting rod 4021 to rotate, the driving power shaft 403 can be driven to rotate, the power shaft 403 drives the air bag 5 connected with one end and the cleaning cloth sleeved outside to rotate, the through hole on the flywheel housing 2 is cleaned and wiped, after the cleaning is finished for a certain time, the control button 101 is released, the control button 101 is popped outwards under the elastic force of the spring arranged inside, thereby respectively pulling out the connected out driving rack 1101 to pass through the meshed first gear 11 and second gear 12, and the third gear 1301 transmits power to the rotating shaft 13 to drive the rotating shaft 13 to rotate reversely, the second incomplete gear 1002 drives the meshed second rack 10 to move outwards, so that the second contact 1001 on the second rack 10 is separated from the motor connecting contact, the power circuit for controlling the motor to rotate is cut off, the motor stops rotating, and the air bag 5 stops rotating, then, as the transmission rack 1101 continues to move, the rotating shaft 13 continues to rotate, namely, the first incomplete gear 902 is driven to be meshed with the first rack 9, so as to drive the first contact 901 to be disconnected from the contact for controlling the micro air pump 6, thereby stopping the operation of the micro air pump 6, then the gas in the air bag 5 is withdrawn, the volume of the air bag 5 is reduced, and at the moment, a mounting through hole on the flywheel shell 2 is cleaned; according to the invention, the driving device 1 is provided with the dynamic sealing assembly, the driving motor in the driving device 1 is in transmission connection with the air bag 5 through the dynamic sealing assembly, the micro air pump 6 is communicated with the air bag 5 through the dynamic sealing assembly, so that the driving motor and the micro air pump 6 are respectively connected with the air bag 5 through the dynamic sealing assembly, and then the composite trigger mechanism is arranged in the driving device 1, and the driving motor and the micro air pump 6 can be respectively controlled to start through the composite trigger mechanism, so that the mounting through hole on the flywheel shell 2 is cleaned, the efficiency is higher, the operation is simple, and the labor cost is reduced.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and are not to be construed as limiting the scope of the invention.

Claims

1. A through hole cleaning device for a flywheel casing comprises a driving device (1), wherein the driving device (1) comprises an output rotating shaft (4), and is characterized by further comprising an air bag (5) arranged at the open end of the output rotating shaft (4), and cleaning cloth used for cleaning through holes in the flywheel casing (2) is arranged on the outer side of the air bag (5);

a miniature air pump (6) is arranged on the driving device (1), a dynamic sealing assembly is arranged at one end, connected with the driving device (1), of the output rotating shaft (4), and a sealing cavity is formed between the dynamic sealing assembly and the output rotating shaft (4);

the micro air pump (6) is connected with a sealed cavity through a first air channel (601), and the sealed cavity is communicated with the air bag (5) through a second air channel;

the composite trigger assembly is arranged on the driving device (1), the composite trigger assembly comprises an instant trigger assembly and a delay trigger assembly, the instant trigger assembly comprises a first rack (9), a first contact (901) and a first incomplete gear (902), a rotating shaft (13) is rotatably arranged in the driving device (1), the first incomplete gear (902) is fixedly sleeved on the rotating shaft (13), the first rack (9) is horizontally and slidably arranged in the driving device (1) and is in transmission fit with the first incomplete gear (902), and the first contact (901) is fixedly arranged at one end of the first rack (9);

The time delay trigger assembly comprises a second rack (10), a second contact (1001) and a second incomplete gear (1002), the second rack (10) is fixedly installed on the outer wall of the rotating shaft (13) and is in transmission fit with the second incomplete gear (1002), the tooth-shaped structures of the first incomplete gear (902) and the second incomplete gear (1002) are arranged in a staggered mode, and the second contact (1001) is fixedly installed at one end of the second rack (10);

the first contact (901) is connected with a power supply for controlling the micro air pump (6) through a lead, a first contact corresponding to the first contact (901) is arranged in the driving device (1), and the first contact is a switch device of the micro air pump (6);

the second contact (1001) is connected with a power supply for controlling the driving motor through a lead, and a second contact corresponding to the second contact (1001) is arranged in the driving device (1), and the second contact is a switching device of the driving motor.

2. The through hole cleaning device for the flywheel housing as claimed in claim 1, wherein the output rotating shaft (4) comprises a transmission shaft (402) and a power shaft (403), a connecting rod (4021) is fixedly installed at one end of the transmission shaft (402), the transmission shaft (402) is fixedly connected with the power shaft (403) through the connecting rod (4021), the second gas channel is formed inside the power shaft (403), and the transmission shaft (402) is located in the sealed cavity.

3. The through hole cleaning device for the flywheel housing is characterized in that a fixed sleeve (3) is fixedly mounted at one end of the driving device (1), the dynamic seal assembly comprises a seal sleeve (14), a first thrust bearing (7) and a second thrust bearing (701), the seal sleeve (14) is fixedly mounted in the fixed sleeve (3), and the first thrust bearing (7) and the second thrust bearing (701) are respectively and fixedly mounted on the outer walls of two opposite sides of the seal sleeve (14);

the output rotating shaft (4) further comprises a driving shaft (401), the driving shaft (401) is driven by a driving motor in the driving device, the driving shaft (401) is fixedly connected with the side wall of the first thrust bearing (7), the driving shaft (401) is rotatably connected with the sealing sleeve (14) through the first thrust bearing (7), one end of the power shaft (403) is movably installed in the fixing sleeve (3), one end of the power shaft (403) is fixedly installed on the side wall of the second thrust bearing (701), and the power shaft (403) is rotatably connected with the sealing sleeve (14) through the second thrust bearing (701);

one end, far away from the connecting rod (4021), of the transmission shaft (402) is fixedly installed on the side wall of the driving shaft (401).

4. The clearance hole device for the flywheel housing according to claim 1, wherein the composite trigger assembly further comprises an acceleration gear set and a transmission rack (1101), the transmission rack (1101) is meshed with an input gear of the acceleration gear set, and an output gear of the acceleration gear set drives the rotating shaft (13); a control button (101) is horizontally arranged on the driving device (1), and one end of the transmission rack (1101) is fixedly installed on the side wall of the control button (101).

5. A through hole cleaning device for flywheel housing according to claim 4, characterized in that the accelerating gear set comprises a second gear (12), a third gear (1301), and a first gear (11), the first gear (11) is an input gear, the third gear (1301) is an output gear; the first gear (11) and the second gear (12) are movably arranged in the driving device (1) respectively, the third gear (1301) is fixedly arranged on the transmission shaft (402), the second gear (12) is meshed with the third gear (1301) and the first gear (11) respectively, and the transmission rack (1101) is meshed with the first gear (11).

6. A cleaning device for through holes of flywheel casings according to claim 1, characterized in that the cleaning cloth is detachably connected to the air bag (5).

7. The through hole cleaning device for the flywheel housing as claimed in claim 6, wherein a fixing strip (501) is arranged on the outer wall of the air bag (5), and the cleaning cloth is wound on the outer side of the fixing strip (501).

8. The clearance device for the through hole of a flywheel casing according to claim 1, wherein the dynamic seal assembly further comprises two movable seals (8), and the two movable seals (8) are fixedly arranged in the fixed sleeve (3).

9. The clearance hole for the flywheel housing as claimed in claim 1, wherein a concave surface is formed at the middle of the peripheral side of the air bag (5).