CN112474606A

CN112474606A - Intelligence environmental protection cleaning equipment

Info

Publication number: CN112474606A
Application number: CN202011131949.7A
Authority: CN
Inventors: 洪昭斌; 袁和平; 陈水宣; 马林
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-03-12

Abstract

The invention discloses intelligent environment-friendly cleaning equipment, which relates to the technical field of dry ice cleaning, and adopts the technical scheme that: including the dry ice cleaning machine body, this internal purge chamber that is equipped with of dry ice cleaning machine, be equipped with the dry ice shower nozzle in the purge chamber, the dry ice shower nozzle includes the casing, dry ice transfer passage and dry ice ejection of compact lid, dry ice transfer passage is connected with the dry ice conveyer pipe, be equipped with the control valve on the dry ice conveyer pipe, the dry ice ejection of compact is covered and has been seted up a plurality of dry ice and punch a hole, and the trompil size that each dry ice punched a hole is inconsistent, it is equipped with the switching-over dish to rotate on the dry ice transfer passage, the both ends that lead to the material mouth communicate respectively on dry ice transfer passage and dry ice punch a hole, and be equipped with actuating mechanism on the casing, the dry ice cleaning machine. The dry ice amount of the spray gun can be controlled, the dry ice amount can be adjusted according to the use requirement, waste is avoided, and the use cost of the spray gun is reduced.

Description

Intelligence environmental protection cleaning equipment

Technical Field

The invention relates to the technical field of dry ice cleaning, in particular to intelligent environment-friendly cleaning equipment.

Background

Dry ice cleaning is a method for cleaning dirt, also called cold spraying, which is a method for cleaning dirt, and is characterized in that compressed air is used as power and carrier, dry ice particles are used as accelerated particles, the particles are sprayed to the surface of an object to be cleaned through a special spraying cleaning machine, and the dirt on the surface of the object to be cleaned is rapidly frozen by utilizing energy conversion such as momentum change (delta mv), sublimation, melting and the like of solid dry ice particles moving at high speed, so that the dirt is condensed, embrittled and peeled off and is simultaneously removed along with air flow. Because of no secondary pollution and good environmental protection effect, the cleaning agent is gradually one of the cleaning modes of various industries.

If the granted bulletin number is CN205995868U, chinese patent with bulletin date 2017.03.08 discloses a mobile dry ice cleaning assembly, which comprises a dry ice cleaning machine body and a portable moving device, wherein the dry ice cleaning machine body is fixedly connected with the portable moving device, a cleaning chamber with a closed periphery is arranged in the dry ice cleaning machine body, gloves are arranged on the outer wall of the cleaning chamber, the gloves penetrate through the outer wall of the cleaning chamber from outside to inside and are located in the cleaning chamber, a spray gun and a rotary disc are arranged in the cleaning chamber, the rotary disc is connected with the bottom surface of the cleaning chamber through a spherical part, an article transfer device is arranged on the side surface of the cleaning chamber, and a filter device is further arranged at the top of the cleaning chamber.

The cleaning device comprises a cleaning chamber, a rotating disc, an article transfer device, a spray gun, a filter device and a cleaning chamber. But work piece surface pollution degree is different, and the dry ice that needs to use spouts the volume differently, and current spray gun dry ice quantity is uncontrollable, directly counterpoints the work piece and sprays the washing when wasing, and the dry ice when unable adjustment according to the demand washs spouts the volume, leads to extravagant more dry ice when wasing, causes the improvement of cleaning cost.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide intelligent environment-friendly cleaning equipment which can control the dry ice amount of a spray gun, adjust the dry ice amount according to the use requirement, avoid waste and have the effect of reducing the use cost.

In order to achieve the purpose, the invention provides the following technical scheme:

an intelligent environment-friendly cleaning device comprises a dry ice cleaning machine body, a cleaning chamber is arranged in the dry ice cleaning machine body, a dry ice sprayer is arranged in the cleaning chamber, the dry ice sprayer comprises a shell, a dry ice conveying channel arranged in the shell and a dry ice discharging cover connected to the discharging end of the dry ice conveying channel, the feeding end of the dry ice conveying channel is connected with a dry ice conveying pipe, a control valve used for controlling the conveying amount of the dry ice is arranged on the dry ice conveying pipe, a plurality of dry ice punched holes are formed in the dry ice discharging cover, the sizes of the holes of the dry ice punched holes are different, a reversing disc is rotatably arranged on the dry ice conveying channel, a material passing hole is formed in the reversing disc, two ends of the material passing hole are respectively communicated with the dry ice conveying channel and the dry ice punched holes, a driving mechanism used for controlling the reversing disc to rotate is arranged on, the material passing opening is switched and communicated with each dry ice punched hole, the dry ice cleaning machine body is connected with a controller, and the control valve is connected with the driving mechanism and controlled on the controller.

Further setting: and the sizes of the holes punched by the dry ice are gradually increased along the rotating direction of the reversing disc.

Further setting: the rotating shaft of the reversing disc is consistent with the conveying direction of the dry ice, the driving mechanism comprises a linkage ring positioned on the peripheral wall of the reversing disc, driven teeth arranged on the peripheral wall of the linkage ring, a driving gear meshed with the driven teeth and a stepping motor connected with the driving gear, the linkage ring is rotatably arranged on the shell, the driven teeth are arranged outside the shell, and the stepping motor is arranged outside the shell.

Further setting: the shell is provided with a guide groove for rotating the link ring, and a sealing structure for improving the sealing performance is arranged between the guide groove and the link ring.

Further setting: the protective housing is arranged on the shell and is sleeved outside the driving gear, the self-locking speed reducer is installed in the protective housing, and the stepping motor is connected with the driving gear through the self-locking speed reducer.

Further setting: the dry ice cleaning machine is characterized in that a mechanical arm is arranged in the cleaning chamber, the dry ice sprayer is installed on the mechanical arm, an image acquisition module used for acquiring images of the surface of a workpiece is installed on the mechanical arm, a display module is arranged outside the dry ice cleaning machine body, and the image acquisition module is connected with the display module.

Further setting: the dry ice cleaning machine is characterized in that a dry ice crushing room is arranged on the dry ice cleaning machine body, a plurality of dry ice crushing rooms are arranged and correspond to dry ice particles with different sizes to be crushed respectively, each dry ice crushing room is connected with a dry ice conveying pipe through a material distributing pipe, and a material conveying valve is arranged on each material distributing pipe.

Further setting: each branch material pipe is mutually snakelike and twines into the collecting pipe, the collecting pipe overcoat is equipped with the insulation cover, be equipped with the heat insulating layer on the insulation cover inner wall.

Further setting: the cleaning machine is characterized in that an impurity collecting groove is formed in the bottom of the cleaning chamber, a centrifugal separator used for separating dry ice particles from impurities is arranged in the impurity collecting groove, an impurity recovery box and a dry ice recovery box are connected to the centrifugal separator, and the dry ice recovery box is connected to the dry ice cleaning machine body through a circulating pipe.

Further setting: the top of the cleaning chamber is provided with a gas discharge port, and the gas discharge port is detachably provided with a filtering device for filtering gas.

Compared with the prior art, the invention has the following advantages by adopting the technical scheme:

1. the dry ice conveying amount on the dry ice conveying pipe can be adjusted through the matching of the control valve and the controller, so that the dry ice spraying amount of the spray gun is controlled, the dry ice spraying amount is adjusted according to the use requirement, the waste is avoided, and the effect of reducing the use cost is achieved;

2. the reversing disc is controlled to rotate by the driving mechanism, dry ice punching holes with different sizes can be replaced to spray the material passing hole, so that the adjusted dry ice amount is convenient to spray and use, the dry ice cleaning effect is ensured, the waste of resources is avoided, and the effect of reducing the use cost is achieved;

3. the manipulator is matched with the image acquisition module and the display module, so that the position of the dry ice sprayer can be conveniently and automatically adjusted to automatically clean the workpiece, the workpiece is more intelligent, the dry ice spraying amount requirement can be judged according to the image information of the workpiece, the dry ice spraying amount can be adjusted, a proper amount of dry ice is used for cleaning, waste is avoided, and the use cost is reduced;

4. the dry ice crushing chambers are arranged, so that dry ice particles with different sizes can be produced, the dry ice particles with corresponding sizes are selectively conveyed according to the cleaning requirement, the cleaning effect is improved, and the waste of dry ice resources is avoided;

5. through the cooperation of the impurity collecting groove and the centrifugal separator that set up, conveniently collect impurity and the thorough dry ice granule of gasify, separate the back through the centrifugal separator, can carry out the recycle respectively, can concentrate recovery processing to impurity, can send into the dry ice cleaning machine body again to the dry ice granule and carry out the refabrication, practice thrift the energy consumption and environmental protection, reduce use cost.

Drawings

FIG. 1 is a schematic structural diagram of an intelligent environment-friendly cleaning device;

FIG. 2 is a schematic view of a portion of a dry ice blasting head;

fig. 3 is a schematic cross-sectional structure diagram of a dry ice discharging cover.

In the figure: 1. a dry ice cleaning machine body; 2. a cleaning chamber; 21. an impurity collecting trough; 22. a gas discharge port; 3. a dry ice sprayer; 31. a housing; 311. a guide groove; 312. a sealing structure; 32. a dry ice conveying passage; 33. a dry ice discharging cover; 331. punching with dry ice; 4. a dry ice delivery pipe; 5. a control valve; 6. a reversing disc; 61. a material inlet is formed; 7. a drive mechanism; 71. a link ring; 72. a driven tooth; 73. a driving gear; 74. a stepping motor; 75. a self-locking speed reducer; 8. a controller; 9. a protective shell; 10. a manipulator; 11. an image acquisition module; 12. a display module; 13. a dry ice crushing chamber; 131. distributing pipes; 132. a feed valve; 14. a manifold; 141. a thermal insulation sleeve; 142. a thermal insulation layer; 15. a centrifugal separator; 16. an impurity recovery tank; 17. a dry ice recovery bin; 171. a circulation pipe; 18. and (4) a filtering device.

Detailed Description

The intelligent environment-friendly cleaning equipment is further described with reference to fig. 1 to 3.

An intelligent environment-friendly cleaning device, as shown in figure 1, comprises a dry ice cleaning machine body 1, a cleaning chamber 2 and a dry ice crushing chamber 13 positioned at one side of the cleaning chamber 2 are arranged in the dry ice cleaning machine, a dry ice nozzle 3 is arranged in the cleaning chamber 2, after the dry ice particles are produced by crushing in the dry ice crushing chamber 13, the dry ice particles are conveyed to the dry ice nozzle 3 in the cleaning chamber 2 to be sprayed for dry ice cleaning operation, closed cleaning is formed, cleaning impurities are prevented from being directly volatilized to the air environment, wherein the dry ice cleaning machine body 1 is connected with a controller 8, a manipulator 10 is arranged in the cleaning chamber 2, the dry ice spray head 3 is arranged on the manipulator 10, the manipulator 10 is connected with and controlled by the controller 8, so as to remove dry ice shower nozzle 3 and shift the position to being located on the work piece surface, convenient automation carries out comprehensive dry ice cleaning operation to the work piece, improves intelligent cleaning effect.

As shown in fig. 1, an impurity collecting groove 21 is provided at the bottom of the cleaning chamber 2, a centrifugal separator 15 for separating dry ice particles from impurities is provided in the impurity collecting groove 21, an impurity recovery tank 16 and a dry ice recovery tank 17 are connected to the centrifugal separator 15, and the dry ice recovery tank 17 is connected to the dry ice cleaning machine body 1 through a circulation pipe 171. During cleaning, the dry ice particles are partially gasified, part of the particles fall into the impurity collecting groove 21 together with impurities without being gasified, the particles in the impurity collecting groove 21 are partially gasified and discharged along with the impurities, and are partially liquefied to form liquid, so that liquid carbon dioxide and the impurities can be separated and respectively collected through the centrifugal separator 15, the cleaning chamber 2 can be cleaned in time and the impurities can be collected, the collected liquid carbon dioxide is sent to the dry ice cleaning machine body 1 through the circulating pipe 171 to be made into the dry ice again, energy consumption is saved, and the environment-friendly effect is improved. Wherein, a filter for filtering impurities in the liquid carbon dioxide is arranged on the circulating pipe 171 to ensure the purity of the carbon dioxide liquid conveyed into the dry ice cleaning machine body 1, so that the dry ice can be conveniently and circularly prepared for use.

As shown in fig. 1, a gas discharge port 22 is disposed at the top of the cleaning chamber 2, and a filtering device 18 for filtering gas is detachably mounted at the gas discharge port 22, so as to filter the gas and then discharge the gas, thereby improving the environmental cleaning effect. The filtering device 18 comprises an impurity blocking filter screen and an active carbon filter layer which are sequentially arranged at the gas discharge port 22 from bottom to top, so that after impurities are filtered, the impurities are purified by the active carbon filter layer and then discharged, and the environment-friendly effect is effectively improved.

As shown in fig. 1 and 2, the dry ice sprayer 3 includes a housing 31, a dry ice conveying passage 32 disposed in the housing 31, and a dry ice discharging cover 33 connected to a discharging end of the dry ice conveying passage 32, wherein a dry ice conveying pipe 4 is connected to a feeding end of the dry ice conveying passage 32, and dry ice particles are conveyed into the dry ice conveying passage 32 through the dry ice conveying pipe 4, so that the dry ice particles are sprayed out through the dry ice discharging cover 33, and dry ice cleaning operation can be performed. Wherein, one end of the dry ice conveying pipe 4 far away from the dry ice conveying channel 32 is connected into the dry ice crushing chamber 13 so as to output the crushed dry ice particles for use.

As shown in fig. 1 and 2, dry ice crushing room 13 is provided with a plurality of to be used for the dry ice granule of broken equidimension not respectively, thereby make multiple dry ice granule size and use, each dry ice crushing room 13 all is connected with dry ice conveyer pipe 4 through dividing material pipe 131, all is equipped with feed valve 132 on each minute material pipe 131, according to the washing demand, after confirming the dry ice granule size, open corresponding feed valve 132 carry on the dry ice carry can. Wherein, be equipped with the delivery pump on each depiler pipe 131, the delivery pump adopts pneumatic transport, and adopts inert shielding gas to carry in the transportation process to dry ice carries, and protects dry ice granule in transportation process, guarantees dry ice cleaning performance. The material distributing pipes 131 are mutually wound in a snake shape to form the collecting pipe 14, so that the temperature is mutually utilized, the situation that the dry ice particles are melted due to the influence of the external temperature in the conveying process is avoided, the heat insulation sleeve 141 is sleeved outside the collecting pipe 14, the heat insulation layer 142 is arranged on the inner wall of the heat insulation sleeve 141, the heat insulation effect is further provided, and the effective conveying of the dry ice particles is guaranteed.

As shown in fig. 1, a control valve 5 for controlling the amount of dry ice to be delivered is further provided at a position of the dry ice delivery pipe 4 near the dry ice delivery passage 32, so as to adjust the amount of dry ice to be delivered into the blasting head and the amount of dry ice to be cleaned. Wherein, the control valve 5 is connected and controlled by the controller 8, and the controller 8 is used for automatically operating the control valve 5, thereby improving the automatic use effect.

As shown in fig. 2 and 3, it punches a hole 331 to have seted up a plurality of dry ice on dry ice ejection of compact lid 33, and the trompil size that each dry ice punched a hole 331 is inconsistent, the trompil size that a plurality of dry ices punched a hole 331 is the grow setting gradually in proper order along reversing disc 6 pivoted direction, so that go on according to the preface when switching, conveniently adjust the dry ice jet orifice size, use in order to be adapted to the dry ice volume demand of spouting, improve the convenience that the adjustment sprays the use, thereby avoid extravagant, reduce use cost. Wherein, it is equipped with switching-over dish 6 to rotate on dry ice transfer passage 32, and the rotation axial of switching-over dish 6 is unanimous with dry ice direction of delivery, it leads to material mouthful 61 to have been seted up on switching-over dish 6, the both ends that lead to material mouthful 61 communicate respectively on dry ice transfer passage 32 and dry ice punch a hole 331, and be equipped with on the casing 31 and be used for controlling the 6 pivoted actuating mechanism 7 of switching-over dish, and when switching-over dish 6 rotates, it switches over with each dry ice 331 to lead to material mouthful 61, through the rotation of switching-over dish 6, can adjust the contraposition dry ice 331 that leads to material mouthful 61, conveniently switch over dry ice and spout the volume, the convenience.

As shown in fig. 2 and fig. 3, further, a plurality of dry ice punching holes 331 are set as a group, two groups of dry ice punching holes 331 are arranged on the dry ice discharging cover 33, the two groups of dry ice punching holes 331 are sequentially connected end to form a circle, two material passing ports 61 are symmetrically formed in the reversing disc 6, and the two material passing ports 61 respectively conduct the positions of the two dry ice punching holes 331 with the same size as the two groups of dry ice punching holes 331 so that the two dry ice punching holes 331 can be synchronously conducted for spraying, and the dry ice cleaning coverage is improved, so that the cleaning efficiency is improved. Wherein, can dismantle on dry ice ejection of compact lid 33 and be equipped with semi-closed lid, semi-closed lid covers in a set of dry ice 331 group department that punches a hole, punch a hole 331 group when using only to use a set of dry ice, utilize semi-closed lid to install and cover another group on dry ice ejection of compact lid 33, can only use single dry ice 331 that punches a hole to use, reduce dry ice cleaning range, thereby can adjust the use according to dry ice cleaning demand, avoid dry ice extravagant, have the effect that improves its convenience of use and reduce its use cost.

As shown in fig. 2, further, the cross-sectional area of the material passing opening 61 is gradually reduced from one end close to the dry ice conveying channel 32 to one end close to the dry ice punched hole 331, and the inner wall of the material passing opening 61 is cleaned and arranged from one end of the dry ice punched hole 331 to one end of the dry ice conveying channel 32, and the caliber of the material passing opening 61 is not smaller than the maximum size of the dry ice punched hole 331, so that dry ice can be fed into the dry ice punched hole 331 for spraying, and when the material is fed to each dry ice punched hole 331 through the material passing opening 61, the dry ice punched hole 331 can be filled with the dry ice for spraying, and therefore, the dry ice. If the use amount of the dry ice needs to be switched, the size of the dry ice punched hole 331 aligned to the material passing hole 61 is adjusted, the control valve 5 is adjusted to switch the conveying amount of the dry ice, the dry ice with the corresponding amount can be used for spraying, cleaning and using, waste is avoided, and the use cost is reduced.

As shown in fig. 1 and 2, the driving mechanism 7 includes a link ring 71 positioned on the outer peripheral wall of the reversing disc 6, a driven gear 72 arranged on the outer peripheral wall of the link ring 71, a driving gear 73 engaged with the driven gear 72, and a stepping motor 74 connected to the driving gear 73, the link ring 71 is rotatably arranged on the housing 31, the driven gear 72 is arranged outside the housing 31, and the stepping motor 74 is mounted outside the housing 31, wherein the stepping motor 74 is connected to and controlled by the controller 8 so as to automatically control the opening and closing of the driving mechanism 7, thereby automatically controlling the rotation of the reversing disc 6. Further, be equipped with on casing 31 and supply link ring 71 pivoted guide way 311 to make things convenient for link ring 71 to rotate steadily, and be equipped with between guide way 311 and the link ring 71 and be used for improving leakproofness's seal structure 312, seal structure 312 can adopt the sealed cooperation setting with the seal groove that fills up, thereby improves leakproofness, guarantees the spraying cleaning performance of dry ice granule.

As shown in fig. 2, a protective casing 9 is further provided around the stepping motor 74 and the driving gear 73, and the protective casing 9 is mounted on the casing 31 by bolts to protect the stepping motor 74 and the driving gear 73 from being contaminated by impurities. Install self-locking reduction gear 75 in protecting sheathing 9, step motor 74 is connected with driving gear 73 through self-locking reduction gear 75 to can utilize self-locking reduction gear 75 to carry out the auto-lock when step motor 74 stall, avoid driving gear 73 to receive other power influences and rotate, guarantee the stability after reversing disc 6 rotates, so that the injection of dry ice granule washs.

As shown in fig. 1, an image acquisition module 11 for acquiring an image of the surface of a workpiece is mounted on a manipulator 10, a display module 12 is arranged outside a dry ice cleaning machine body 1, the image acquisition module 11 is connected with the display module 12 to acquire image information of the surface of the workpiece in real time and feed the image information back to the display module 12 for display, so that a worker can conveniently recognize the dry ice cleaning effect. The image acquisition module 11 is further connected to the controller 8, feeds image information back to the controller 8, and after the controller 8 analyzes the image information, adjusts the dry ice cleaning route and the dry ice particle cleaning spraying amount and switches the dry ice punching hole 331 for spraying, so that the automation effect is improved, the automatic control and use are facilitated, and the cleaning efficiency is improved.

The working principle is as follows: during the use, utilize dry ice cleaning machine body 1 preparation dry ice to utilize the broken room 13 of different dry ice to be the dry ice granule of equidimension not respectively, according to work piece cleaning demand, choose for use the dry ice granule of corresponding size to use afterwards, thereby open and correspond feed valve 132 on the branch material pipe 131, send into in the dry ice conveyer pipe 4 through branch material pipe 131, thereby send to and carry out the blowout washing in the dry ice shower nozzle 3. In the cleaning process, the manipulator 10 controls the dry ice nozzle 3 to move, and the dry ice nozzle 3 is automatically controlled to move to the position needing to be cleaned to perform dry ice cleaning operation in cooperation with the image acquisition module 11, the display module 12 and the controller 8. If the amount of the dry ice needs to be adjusted, a control signal is sent to the control valve 5 through the controller 8, so that the control valve 5 adjusts the dry ice conveying amount of the dry ice conveying pipe 4, then the driving mechanism 7 is used for driving the reversing disc 6 to rotate so as to adjust the dry ice punching hole 331 aligned with the material passing hole 61, the size of a dry ice spraying opening is switched to be suitable for the conveying amount to carry out spraying cleaning, and therefore the dry ice cleaning operation is accurately carried out on the workpiece. Through the scheme, the dry ice using amount of the spray gun can be controlled, the dry ice using amount can be adjusted according to using requirements, waste is avoided, intelligent cleaning is achieved, the environment-friendly effect is improved, and the using cost of the spray gun is reduced.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides an intelligence environmental protection cleaning equipment, includes dry ice cleaning machine body (1), be equipped with purge chamber (2) in the dry ice cleaning machine body, its characterized in that, be equipped with dry ice shower nozzle (3) in purge chamber (2), dry ice shower nozzle (3) include casing (31), locate dry ice transfer passage (32) in casing (31) and connect in dry ice discharge cover (33) of dry ice transfer passage (32) discharge end, the feed end of dry ice transfer passage (32) is connected with dry ice conveyer pipe (4), be equipped with on dry ice conveyer pipe (4) and be used for controlling dry ice conveying capacity's control valve (5), a plurality of dry ice punches a hole (331) has been seted up on dry ice discharge cover (33), and each the trompil size that dry ice punched a hole (331) is inconsistent, it is equipped with switching-over dish (6) to rotate on dry ice transfer passage (32), the dry ice cleaning machine is characterized in that a material passing opening (61) is formed in the reversing disc (6), two ends of the material passing opening (61) are respectively communicated with a dry ice conveying channel (32) and a dry ice punching hole (331), a driving mechanism (7) used for controlling the reversing disc (6) to rotate is arranged on the shell (31), when the reversing disc (6) rotates, the material passing opening (61) and each dry ice punching hole (331) are switched and conducted, the dry ice cleaning machine body (1) is connected with a controller (8), and the control valve (5) and the driving mechanism (7) are connected and controlled on the controller (8).

2. An intelligent environment-friendly cleaning device as claimed in claim 1, wherein the sizes of the openings of the plurality of dry ice punching holes (331) are gradually increased along the rotation direction of the reversing disc (6).

3. An intelligent environment-friendly cleaning device as claimed in claim 1, wherein the rotation axis of the reversing disc (6) is consistent with the dry ice conveying direction, the driving mechanism (7) comprises a linkage ring (71) positioned on the outer peripheral wall of the reversing disc (6), driven teeth (72) arranged on the outer peripheral wall of the linkage ring (71), a driving gear (73) meshed with the driven teeth (72) and a stepping motor (74) connected with the driving gear (73), the linkage ring (71) is rotatably arranged on the housing (31), the driven teeth (72) are arranged outside the housing (31), and the stepping motor (74) is arranged outside the housing (31).

4. An intelligent environment-friendly cleaning device according to claim 3, wherein a guide groove (311) for rotation of the linkage ring (71) is formed in the housing (31), and a sealing structure (312) for improving sealing performance is arranged between the guide groove (311) and the linkage ring (71).

5. An intelligent environment-friendly cleaning device according to claim 3, wherein a protective shell (9) is sleeved outside the stepping motor (74) and the driving gear (73), the protective shell (9) is installed on the shell (31), a self-locking speed reducer (75) is installed in the protective shell (9), and the stepping motor (74) is connected with the driving gear (73) through the self-locking speed reducer (75).

6. An intelligent environment-friendly cleaning device as claimed in claim 1, wherein a mechanical arm (10) is arranged in the cleaning chamber (2), the dry ice sprayer (3) is installed on the mechanical arm (10), an image acquisition module (11) for acquiring an image of the surface of a workpiece is installed on the mechanical arm (10), a display module (12) is arranged outside the dry ice cleaning machine body (1), and the image acquisition module (11) is connected with the display module (12).

7. An intelligent environment-friendly cleaning device as claimed in claim 1, wherein a dry ice crushing chamber (13) is arranged on the dry ice cleaning machine body (1), a plurality of dry ice crushing chambers (13) are arranged and respectively corresponding to crushing dry ice particles with different sizes, each dry ice crushing chamber (13) is connected with the dry ice conveying pipe (4) through a material distributing pipe (131), and the material distributing pipe (131) is provided with a feeding valve (132).

8. The intelligent environment-friendly cleaning equipment as claimed in claim 7, wherein the distributing pipes (131) are mutually wound in a serpentine shape to form a collecting pipe (14), a heat insulation sleeve (141) is sleeved outside the collecting pipe (14), and a heat insulation layer (142) is arranged on the inner wall of the heat insulation sleeve (141).

9. An intelligent environment-friendly cleaning device as claimed in claim 1, wherein an impurity collecting groove (21) is formed in the bottom of the cleaning chamber (2), a centrifugal separator (15) for separating dry ice particles from impurities is arranged in the impurity collecting groove (21), an impurity recovery box (16) and a dry ice recovery box (17) are connected to the centrifugal separator (15), and the dry ice recovery box (17) is connected to the dry ice cleaning machine body (1) through a circulating pipe (171).

10. An intelligent environment-friendly cleaning device according to claim 1, wherein a gas discharge port (22) is arranged at the top of the cleaning chamber (2), and a filtering device (18) for filtering gas is detachably mounted at the gas discharge port (22).