Dust extraction assembly, clean crane and use

Abstract

This invention relates to the field of crane equipment technology, specifically a dust collection assembly, comprising: drive casters, a transmission mechanism, a dust collection mechanism, and a collection box. The drive casters drive the dust collection mechanism through the transmission mechanism, and the upper end of the dust collection mechanism is connected to the collection box. The dust collection mechanism includes a suction pipe, a plastic sheet, and a fan blade. The suction pipe consists of a straight pipe and an arc-shaped adapter. The arc-shaped adapter at the upper end of the suction pipe is located in and connected to the collection box. A plastic sheet is provided at the upper end of the suction pipe to cover the upper end of the suction pipe, and the upper end of the plastic sheet is hinged to the upper end of the suction pipe. The fan blade is rotatably connected to the straight pipe of the suction pipe through a centrally fixed rotating shaft. The output end of the transmission mechanism is connected to the rotating shaft in the middle of the fan blade to drive the fan blade to rotate. This dust collection assembly can be installed in existing cranes and can automatically clean dust from grooved tracks without the need for additional electric drive components.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crane equipment, in particular to a dust suction assembly, a clean crane and application. BACKGROUND

[0002] The crane refers to a multi-action hoisting machinery for vertically lifting and horizontally transporting heavy objects within a certain range. It is also called a crane, a hangar, and a hoist. The crane and the walking trolley thereon are usually moved on the corresponding track. The groove type track (as shown in Figure 11 Compared with the convex track, the groove type track can more effectively prevent the wheel from derailing and has a better limiting effect.

[0003] However, during use of the groove type track, dust accumulates in the groove. With the accumulation of dust in the track, the crane and the walking trolley thereon are prone to tilting and even derailing when moving along the track. SUMMARY

[0004] To solve the above technical problems, the present application aims to provide a dust suction assembly, a clean crane and application. The dust suction assembly can be installed in the existing crane for use without the need for installing an additional power driven assembly, so as to automatically clean the dust in the groove type track and prevent the crane / walking trolley from tilting and derailing during movement.

[0005] To achieve the above technical purposes, the technical solution adopted by the present application is as follows:

[0006] A dust suction assembly comprises a driving trolley, a transmission mechanism, a dust suction mechanism and a collection box. The driving trolley drives the dust suction mechanism to operate through the transmission mechanism. The upper end of the dust suction mechanism is connected to the collection box.

[0007] The dust suction mechanism comprises a dust suction pipe, a plastic sheet and a fan blade. The dust suction pipe is composed of a straight pipe and an arc-shaped adapter. The arc-shaped adapter at the upper end of the dust suction pipe is arranged in the collection box and connected to the collection box. The plastic sheet is arranged at the upper end of the dust suction pipe to cover the upper end of the dust suction pipe. The upper end of the plastic sheet is hinged to the upper end of the dust suction pipe. The fan blade is rotatably connected to the straight pipe of the dust suction pipe through a fixed rotating shaft in the middle.

[0008] The output end of the transmission mechanism is connected to the rotating shaft in the middle of the fan blade to drive the fan blade to rotate.

[0009] As a possible implementation, the wheel in the driving trolley is rotatably connected to the mounting frame of the trolley through a fixed rotating shaft in the middle.

[0010] As a preferable embodiment, preferably, the driving caster includes a directional caster and a pressure adjusting structure, the pressure adjusting structure is installed on the top of the directional caster;

[0011] The pressure adjusting structure includes a threaded rod, a lifting plate, a guide rod, an adjusting nut, a spring and a mounting plate, the threaded rod is fixedly installed on the top of the directional caster in a longitudinal direction, the adjusting nut is threadedly connected on the threaded rod, the lifting plate is provided with a circular hole in the middle part for avoiding the threaded rod, the lifting plate is sleeved on the threaded rod and abuts against the adjusting nut, a plurality of groups of guide rods are uniformly arranged on the lifting plate in a circumferential direction, the lower end of the guide rod penetrates the lifting plate in a longitudinal direction and is fixedly connected to the top of the directional caster, the guide rod is in sliding fit with the lifting plate, the spring is fixed on the top of the lifting plate, and the mounting plate is fixed on the top of the spring.

[0012] As a possible embodiment, further, the transmission mechanism includes a driving sprocket, a driven sprocket, a chain and a gear assembly, the driving sprocket is coaxially installed on the rotating shaft in the middle part of the wheel of the driving caster, the driven sprocket is installed on the input shaft of the gear assembly, the output shaft of the gear assembly is connected to the rotating shaft in the middle part of the fan blade, and the chain is wound between the driving sprocket and the driven sprocket.

[0013] As a possible embodiment, further, the gear assembly includes a gear box, a driving bevel gear and a driven bevel gear, the gear box is fixed on the side wall of the dust collection pipe, the driving bevel gear and the driven bevel gear are both installed in the gear box, the middle part of the driving bevel gear is coaxially fixed with the input shaft, the input shaft penetrates the gear box and is connected to the driven sprocket, the side part of the driving bevel gear is engaged with the driven bevel gear, the middle part of the driven bevel gear is coaxially fixed with the output shaft, and the output shaft is fixedly connected to the rotating shaft in the middle part of the fan blade.

[0014] As a possible embodiment, further, the side wall of the collecting box is provided with a box door, a plurality of air outlets are formed in the side wall of the collecting box, and each air outlet is covered with a dust filter net.

[0015] As a possible embodiment, further, the lower end of the dust collection pipe is provided with a turning shovel mechanism, the turning shovel mechanism includes a reset mechanism and a turning shovel;

[0016] The turning shovel is reversibly installed on the lower end of the dust collection pipe through a rotating shaft, the rotating shaft is deviated to one side of the turning shovel, so that one end of the turning shovel can be reversibly inclined downward;

[0017] The reset mechanism is located on the side of the turning shovel reversibly inclined upward, and is fixedly installed on the inner wall of the lower end of the straight pipe section of the dust collection pipe.

[0018] The reset mechanism includes a fixing block, a load-bearing component, a magnet, and a filter screen. The fixing block is fixedly installed on the inner wall of the vacuum tube. A cavity is provided in the middle of the fixing block. A ventilation opening is provided on the side of the fixing block that is in contact with the inner wall of the vacuum tube. The ventilation opening is located at the lower end of the side wall of the cavity and communicates with the cavity. An opening is provided on the vacuum tube at a position corresponding to the ventilation opening.

[0019] An exhaust vent is provided at the top of the cavity, and the filter screen is disposed at the exhaust vent. A magnet is installed at the top of the cavity of the fixing block, and the magnet is offset from the exhaust vent.

[0020] The load-bearing component includes a metal plate and an abutment plate. The metal plate is disposed in the cavity in the middle of the fixing block and is fitted with the cavity with a gap. The abutment plate is fixed to the bottom of the metal plate. The bottom of the fixing block has an opening for avoiding the abutment plate. The lower end of the abutment plate protrudes through the opening into the fixing block.

[0021] In a preferred embodiment, the flipper includes a flip plate and an arc-shaped shovel block, wherein the arc-shaped shovel block is fixed to the downward-sloping side of the flip plate.

[0022] This invention also provides a cleanroom crane, wherein the aforementioned dust-collecting components are installed at the bottom of the crane frame and / or the bottom of the trolley's carrying platform; wherein both the crane and the trolley use grooved tracks. Ordinary cranes accumulate large amounts of dust in their grooved tracks, failing to meet the cleanliness requirements of specialized workshops in industries such as high-precision electronics and food processing. The cleanroom crane provided by this invention can clean the dust accumulated on the tracks, enabling its application in industries with high cleanliness requirements.

[0023] As another possible implementation, the above-described vacuuming assembly can also be applied to other mobile devices that travel on grooved tracks.

[0024] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0025] The dust collection component provided by this invention can be installed in existing cranes without the need for additional electric drive components and related control circuits, making installation more convenient. This dust collection component uses the movement of the crane / traveling trolley as power to achieve automatic dust removal; furthermore, it effectively prevents dust from scattering within the dust collection mechanism, exhibiting good dust removal performance and making it suitable for further promotion and application. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the vacuuming component; (double arrows indicate the direction of movement, and single arrows indicate the direction of gas flow).

[0028] Figure 2 This is a schematic diagram showing the vacuum cleaner component moving in the reverse direction; (the double arrows in the diagram indicate the direction of movement).

[0029] Figure 3 This is a rear view of the vacuum assembly;

[0030] Figure 4 This is a schematic diagram of the drive casters in the vacuum cleaner assembly;

[0031] Figure 5 This is a schematic diagram of the vacuuming mechanism in vacuuming mode;

[0032] Figure 6 This is a schematic diagram of the vacuuming mechanism in its non-vacuuming state;

[0033] Figure 7 This is a schematic diagram of the reset mechanism in the vacuuming assembly; (the left diagram shows the reset mechanism in the vacuuming state, and the right diagram shows the reset mechanism in the non-vacuuming state).

[0034] Figure 8 This is a schematic diagram of the fan blades in a vacuum cleaner assembly.

[0035] Figure 9 This is a schematic diagram of a cleanroom crane;

[0036] Figure 10 A schematic diagram of installing a dust collection component on the bottom of the cargo platform of a mobile cart;

[0037] Figure 11 This is a schematic diagram of the cross-section of a groove-shaped track.

[0038] The labels in the diagram are as follows:

[0039] Drive caster-1; Transmission mechanism-2; Dust collection mechanism-3; Collection box-4; Tilting mechanism-5; Crane-6; Grooved track-7; Directional caster-11; Pressure adjustment structure-12; Threaded rod-121; Lifting plate-122; Guide rod-123; Adjusting nut-124; Spring-125; Mounting plate-126; Transmission sprocket-21; Driven sprocket-22; Chain-23; Gear assembly-24; Gearbox-241; Transmission Driven bevel gear - 242; Driven bevel gear - 243; Suction pipe - 31; Plastic sheet - 32; Fan blade - 33; Box door - 41; Exhaust port - 42; Dust filter - 43; Reset mechanism - 51; Tilting shovel - 52; Fixing block - 511; Load-bearing component - 512; Magnet - 513; Filter screen - 514; Vent opening - 5111; Metal plate - 5121; Abutment plate - 5122; Flip plate - 521; Arc-shaped shovel block - 522; Loading plate - 61. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1

[0042] See attached document Figures 1-3 As shown, this embodiment provides a dust collection assembly, including: a drive caster 1, a transmission mechanism 2, a dust collection mechanism 3, and a collection box 4. The drive caster 1 drives the dust collection mechanism 3 to operate through the transmission mechanism 2, and the upper end of the dust collection mechanism 3 is connected to the collection box 4. During use, the dust collection assembly is installed on the bottom of a traveling trolley or the bottom of the crane 6 frame. When the traveling trolley / crane 6 frame moves on the grooved track 7, the drive caster 1 drives the dust collection mechanism 3 to move through the transmission mechanism 2, and the dust collection mechanism 3 sucks in the dust in the grooved track 7 and collects it in the collection box 4.

[0043] See attached document Figure 5 , 6As shown in Figure 8, the vacuuming mechanism 3 includes a vacuum tube 31, a plastic sheet 32, and a fan blade 33. The fan blade 33 is the fan blade of a conventional vacuum cleaner, which discharges dust into the collection box 4 when rotating. The vacuum tube 31 consists of a straight tube and an arc-shaped adapter. Furthermore, any cross-section of the vacuum tube 31 is a square frame, and the diameter of the fan blade 33 is adapted to the width of the vacuum tube 31.

[0044] The arc-shaped adapter at the upper end of the suction pipe 31 is located in and connected to the collection box 4. A plastic sheet 32 ​​(in this embodiment, the plastic sheet 32 ​​is a PVC plastic sheet with a thickness of about 2mm and a light weight) is provided at the upper port of the suction pipe 31 to cover the upper port of the suction pipe 31. The upper end of the plastic sheet 32 ​​is hinged to the upper port of the suction pipe 31. The fan blade 33 is rotatably connected to the straight pipe of the suction pipe 31 through a rotating shaft fixed in the middle. The output end of the transmission mechanism 2 is connected to the rotating shaft in the middle of the fan blade 33 to drive the fan blade 33 to rotate.

[0045] When fan blade 33 rotates in the forward direction (e.g.) Figure 1 and 5 As shown, the plastic sheet 32 ​​opens outward under the action of wind, and the dust in the grooved track 7 is discharged into the collection box 4 through the suction pipe 31. When the fan blade 33 rotates in the reverse direction, the plastic sheet 32 ​​closes; when the fan blade 33 rotates in the reverse direction, the closing of the plastic sheet 32 ​​is equivalent to closing the air inlet of the pipe, preventing the reverse flow of gas in the suction pipe 31, and avoiding the reverse airflow from carrying out dust.

[0046] As a preferred embodiment of the arc-shaped adapter, the preferred flip angle α of the arc-shaped adapter in the vacuum tube 31 is 30°≤α≤90°. This is because when the drive caster 1 is not moving, it is necessary for the plastic sheet 32 ​​to cover the upper port of the vacuum tube 31, and the flip angle of the arc-shaped adapter of 30°≤α≤90° can ensure that the plastic sheet 32 ​​covers the upper port of the vacuum tube 31 in a natural static state; in this embodiment, the arc-shaped adapter is 90°.

[0047] See attached document Figures 1-4 As shown, the wheel in the drive caster 1 is rotatably connected to the caster mounting bracket via a rotating shaft fixed in its middle. In a preferred embodiment of the drive caster 1, the drive caster 1 includes a directional caster 11 and a pressure adjustment structure 12. The pressure adjustment structure 12 is mounted on the top of the directional caster 11. The pressure adjustment structure 12 is used to adjust the pressure of the directional caster 11 on the grooved track 7 to prevent slippage between the directional caster 11 and the grooved track 7, which would prevent the drive caster 1 from effectively driving the vacuuming mechanism 3 to operate.

[0048] The pressure adjustment structure 12 includes a threaded rod 121, a lifting plate 122, a guide rod 123, an adjusting nut 124, a spring 125, and a mounting plate 126. The threaded rod 121 is longitudinally fixedly installed on the top of the directional caster 11. The adjusting nut 124 is threadedly connected to the threaded rod 121. A circular hole for avoiding the threaded rod 121 is opened in the middle of the lifting plate 122. The lifting plate 122 is sleeved on the threaded rod 121 and abuts against the adjusting nut 124. Multiple sets of guide rods 123 are evenly arranged along the circumference of the lifting plate 122. The guide rods 123 are used for limiting and guiding the lifting plate 122. The lower end of the guide rod 123 longitudinally passes through the lifting plate 122 and is fixedly connected to the top of the directional caster 11. The guide rod 123 and the lifting plate 122 are in sliding fit. A spring 125 is fixed to the top of the lifting plate 122, and a mounting plate 126 is fixed to the top of the spring 125.

[0049] During use, the mounting plate 126 is fixedly installed on the bottom of the traveling trolley / crane 6 frame with bolts. When it is necessary to adjust the pressure of the directional caster 11, the adjusting nut 124 is rotated. The rotation of the adjusting nut 124 can drive the lifting plate 122 to rise and fall, thereby adjusting the pressure of the spring 125 to achieve the adjustment of the pressure of the directional caster 11 and prevent the wheels on the directional caster 11 from slipping between the wheels and the grooved track 7.

[0050] As a further improvement, the wheel in the drive caster 1 is a rubber wheel or the wheel surface is covered with an anti-slip rubber layer to further prevent slippage between the wheel and the grooved track 7.

[0051] See attached document Figure 3 As shown, the transmission mechanism 2 includes a transmission sprocket 21, a driven sprocket 22, a chain 23, and a gear assembly 24. The transmission sprocket 21 is coaxially mounted on the rotating shaft in the middle of the wheel of the drive caster 1. The driven sprocket 22 is mounted on the input shaft of the gear assembly 24. The output shaft of the gear assembly 24 is connected to the rotating shaft in the middle of the fan blade 33. The chain 23 is wound between the transmission sprocket 21 and the driven sprocket 22.

[0052] When the drive caster 1 moves, it drives the transmission sprocket 21 to rotate. The transmission sprocket 21 drives the driven sprocket 22 to rotate via the chain 23. The rotation of the driven sprocket 22 drives the fan blade 33 to rotate via the gear assembly 24. During use, the transmission ratio can be adjusted by selecting the number of teeth on the transmission sprocket 21 and the driven sprocket 22. Under normal circumstances, the number of teeth on the transmission sprocket 21 is greater than the number of teeth on the driven sprocket 22 to increase the transmission ratio (i.e., to achieve the effect that the driven sprocket rotates several times for every one revolution of the transmission sprocket 21).

[0053] As a further improvement, the transmission mechanism 2 also includes a chain tensioner, which is installed on the side wall of the suction pipe 31 to achieve automatic adjustment of the tension of the chain 23.

[0054] See attached document Figure 5 As shown, the gear assembly 24 includes a gearbox 241, a transmission bevel gear 242, and a driven bevel gear 243. The gearbox 241 is fixed to the side wall of the suction pipe 31. Both the transmission bevel gear 242 and the driven bevel gear 243 are installed inside the gearbox 241. An input shaft is coaxially fixed to the middle of the transmission bevel gear 242. The input shaft passes through the gearbox 241 and is connected to the driven sprocket 22. When the driven sprocket 22 rotates, it can drive the transmission bevel gear 242 to rotate. The driven bevel gear 243 meshes with the side of the transmission bevel gear 242. The rotation of the transmission bevel gear 242 can drive the driven bevel gear 243 to rotate. An output shaft is coaxially fixed to the middle of the driven bevel gear 243. The output shaft is fixedly connected to the rotating shaft in the middle of the fan blade 33. The driven bevel gear 243 can drive the fan blade 33 to rotate through the output shaft.

[0055] When the drive caster 1 moves and drives the input shaft to rotate via the chain rotation, the input shaft rotation will drive the transmission bevel gear 242 to rotate, and the transmission bevel gear 242 will then drive the fan blade 33 connected to the output shaft to rotate via the driven bevel gear 243 meshing with it.

[0056] During use, the transmission ratio can be adjusted by selecting the number of teeth of the drive bevel gear 242 and the driven bevel gear 243. Under normal circumstances, the number of teeth of the drive bevel gear 242 is greater than the number of teeth of the driven bevel gear 243 to increase the transmission ratio (that is, to achieve the effect that the driven bevel gear 243 rotates several times for the drive bevel gear 242 to rotate one revolution).

[0057] By rationally selecting the number of teeth of the drive sprocket 21, driven sprocket 22, drive bevel gear 242, and driven bevel gear 243, the transmission ratio between the drive caster 1 and the fan blade 33 can be effectively improved.

[0058] See attached document Figure 3 As shown, a door 41 is installed on the side wall of the collection box 4 to facilitate the cleaning of dust inside the box; several exhaust ports 42 are opened at the upper end of the side wall of the collection box 4 to ensure the air pressure balance inside the box; each exhaust port 42 is covered with a dust filter 43 to prevent the gas from carrying the dust out of the box.

[0059] See attached document Figures 5-7 As shown, a flipping mechanism 5 is installed at the lower end of the suction pipe 31. The flipping mechanism 5 includes a reset mechanism 51 and a flipping shovel 52.

[0060] The shovel 52 is rotatably mounted at the lower end of the suction pipe 31 via a pivot. The pivot is biased to one side of the shovel 52, meaning the weight of the shovel 52 on the other side is greater, allowing one end of the shovel 52 to tilt downwards. In the tilted state, the lower end of the shovel 52 abuts against the grooved track. Driven by a crane / traveling trolley, it can scoop up the dust in the track, preventing dust from adhering to the grooved track and making it difficult for the suction mechanism 3 to suck up. When the shovel 52 is in a horizontal state, it can cover the lower end of the suction pipe 31 to prevent dust from scattering from the suction mechanism 3.

[0061] In this embodiment, the shovel 52 includes a flap 521 and an arc-shaped shovel block 522, with the arc-shaped shovel block 522 fixed to the downward-sloping side of the flap 521. Furthermore, the width of the shovel 52 is approximately equal to the width of the grooved track 7, and when the shovel 52 moves, the arc-shaped shovel block 522 can fully scoop up the dust in the track.

[0062] The reset mechanism 51 is located on the side where the tipper 52 tilts upwards, and it is fixedly installed on the lower end of the inner wall of the straight section of the suction pipe 31; see attached figure. Figure 7 As shown, the reset mechanism 51 includes a fixing block 511, a load-bearing component 512, a magnet 513, and a filter screen 514. The fixing block 511 is fixedly installed on the inner wall of the suction pipe 31. A cavity is provided in the middle of the fixing block 511. A ventilation opening 5111 is provided on the side of the fixing block 511 that is in contact with the inner wall of the suction pipe 31. The ventilation opening 5111 is located at the lower end of the side wall of the cavity and communicates with the cavity. The suction pipe 31 has an opening at a position corresponding to the ventilation opening 5111, so that the cavity of the fixing block 511 communicates with the outside.

[0063] An exhaust vent is provided at the top of the cavity, and a filter screen 514 is disposed at the exhaust vent to prevent dust from entering the cavity of the fixing block 511. A magnet 513 is fixedly installed at the top of the cavity of the fixing block 511, and the magnet 513 is offset from the exhaust vent. The magnet 513 is a weakly magnetic magnet.

[0064] The load-bearing component 512 includes a metal plate 5121 and an abutment plate 5122. Further, the metal plate 5121 is a magnetic metal that can attract a magnet. In this embodiment, the metal plate 5121 is made of steel, and the attraction force between the magnet 513 and the upper metal plate 5121 of the load-bearing component 512 is less than the weight of the load-bearing component 512. The metal plate 5121 is disposed within the cavity in the middle of the fixing block 511 and is fitted with the cavity with a clearance. In this embodiment, the clearance on both sides is approximately 0.8–1.0 mm. The abutment plate 5122 is fixed to the bottom of the metal plate 5121. The bottom of the fixing block 511 has an opening for avoiding the abutment plate 5122. The lower end of the abutment plate 5122 protrudes through the opening into the fixing block 511 and can extend and retract.

[0065] When the load-bearing component 512 is in a lowered state (as shown in the attached document) Figure 7As shown in the middle right figure), the abutment plate 5122 in the load-bearing component 512 presses against the side of the tilting shovel 52 that is tilted upwards, so that the tilting shovel 52 is in a horizontal state (as shown in the attached figure). Figure 6 (As shown).

[0066] When the load-bearing component 512 is in the rising state (as shown in the attached document) Figure 7 As shown in the middle left figure, the metal plate 5121 at the upper end of the load-bearing component 512 is attracted to the magnet 513, and the flipper 52 is flipped over by its own weight (as shown in the attached figure). Figure 5 (As shown).

[0067] In use, the vacuuming assembly is installed on the bottom of the trolley's loading platform 61 and / or the bottom of the crane 6 frame. Then, the pressure adjustment structure 12 is adjusted to press the directional casters 11 firmly against the grooved track. When the vacuuming assembly is not moving, the vacuuming mechanism 3 is stationary, and the load-bearing component 512 is in a lowered state (as shown in the attached diagram). Figure 7 As shown in the middle right figure), the load-bearing component 512 presses down on the side of the tilting shovel 52 that is tilting upwards, so that the tilting shovel 52 is in a horizontal state (as shown in the attached figure). Figure 6 (As shown), to prevent dust in the vacuuming mechanism 3 from falling onto the track. In this embodiment, when the traveling trolley / crane 6 moves the vacuuming assembly to the left (as shown in the attached diagram), Figure 1 As shown), the drive caster 1 drives the fan blades in the vacuuming mechanism 3 to rotate forward through the transmission mechanism 2, the plastic sheet 32 ​​opens, and the gas in the vacuum pipe 31 is discharged into the collection box 4, creating a certain negative pressure inside the vacuum pipe 31. The gas in the cavity of the fixed block 511 located above the load 512 is discharged from the exhaust hole at the upper end of the cavity under the action of the negative pressure in the vacuum pipe 31, creating a negative pressure at the upper end of the load 512. The lower end of the cavity of the fixed block 511 is connected to the outside through the vent opening 5111, so it is close to normal pressure. The load 512 rises under the action of the pressure difference between the upper and lower parts, causing the metal plate 5121 at the upper end of the load 512 to be attracted to the magnet 513 (as shown in the attached diagram). Figure 7 As shown in the middle left figure), after the load 512 rises, the tipper 52 flips under its own weight (as shown in the attached figure). Figure 5 As shown in the attached diagram, as the vacuuming assembly moves to the left, the scoop 52 scoops up the dust from the grooved track, and the fan blades 33 in the vacuuming mechanism 3 rotate clockwise, sucking the scooped-up dust into the collection box 4 (as shown in the attached diagram). Figure 1 (As shown). When the shovel 52 flips over, the suction pipe 31 is connected to the outside, and the negative pressure inside the suction pipe 31 will decrease. Therefore, in this invention, a weak magnetic magnet 513 is provided at the upper end of the fixing block 511. The weak magnetic magnet 513 attracts the load 512 to provide a certain suction force, so as to prevent the load 512 from falling back after the negative pressure decreases.

[0068] When the traveling trolley / crane 6 stops moving, the drive casters 1 stop moving, the fan blades 33 in the vacuuming mechanism 3 stop operating, and the negative pressure in the vacuum pipe 31 disappears. Since the attraction between the magnet 513 and the metal plate 5121 at the upper end of the load-bearing component 512 is less than the weight of the load-bearing component 512, the load-bearing component 512 descends and presses down onto the side of the tilting shovel 52 that is tilted upwards under its own weight, making the tilting shovel 52 horizontal (as shown in the attached figure). Figure 6 (As shown), to prevent dust from scattering from the dust collection mechanism 3.

[0069] In this embodiment, when the traveling trolley / crane 6 moves the dust collection component to the right (as shown in the attached diagram)... Figure 2 As shown), the drive caster 1 drives the fan blades in the vacuuming mechanism 3 to rotate in the opposite direction through the transmission mechanism 2. During the reverse rotation, the plastic sheet 32 ​​is in a closed state. Since the plastic sheet 32 ​​is closed, it is equivalent to the air inlet of the pipe being closed, which prevents the reverse flow of gas in the vacuuming pipe 31. Also, since the air inlet and outlet of the vacuuming pipe 31 are closed, there is basically no negative pressure generated in the vacuuming pipe 31. Therefore, the load-bearing component 512 will not rise due to the negative pressure. Thus, the tipping shovel 52 will not flip over (that is, when the vacuuming component moves to the right, the tipping shovel 52 will not flip over and open, but will remain in a horizontal state), effectively preventing the reverse airflow from carrying out dust.

[0070] In this embodiment, the dust collection component does not require additional circuit drive components and control circuits to realize the automatic operation of the dust collection mechanism 3 and the flipping mechanism 5, so as to achieve the effect of automatic dust collection and preventing dust from scattering.

[0071] See attached document Figures 9-10 As shown, this embodiment also provides a cleanroom crane, wherein the aforementioned dust collection assembly is installed at the bottom of the crane 6 frame and / or the bottom of the crane's traveling trolley loading platform 61 (the case where the dust collection assembly is installed at the bottom of the crane 6 frame is not shown in the figure). The crane 6 and the traveling trolley in the crane 6 both use grooved track 7.

[0072] During installation, the dust collection assembly is mounted by bolting the drive casters 1 and the collection box 4 to the bottom of the trolley's cargo platform 61 and / or the bottom of the crane 6 frame. Then, the chain 23 is wound between the drive sprocket 21 and the driven sprocket 22.

[0073] Among them, two sets of dust collection components (such as...) can be installed opposite each other on the bottom of the frame of the crane 6 and / or the bottom of the traveling trolley loading platform 61 in the crane. Figure 10(As shown). When the traveling trolley or crane 6 moves forward, the fan blades 33 in one set of dust collection components rotate forward and the tilting shovel 52 rotates open; the fan blades 33 in the other set of dust collection components rotate in the opposite direction and the tilting shovel 52 remains horizontal and does not open; the dust collection component with the fan blades 33 rotating forward scoops up the dust in the grooved track 7 and sucks it into the collection box 4 under the drive of the traveling trolley or crane 6; the dust collection component with the fan blades 33 rotating in the opposite direction does not perform dust collection.

[0074] When the traveling trolley or crane 6 moves backward, the rotation direction of the fan blades 33 in the two sets of dust collection components is reversed; by installing the two sets of dust collection components relative to each other, it can be ensured that when the traveling trolley or crane 6 moves forward or backward, one set of dust collection components can operate to perform dust collection.

[0075] Example 2

[0076] The dust collection component provided in this embodiment is basically the same as that in embodiment 1, except that the dust collection component in this embodiment does not include the flipping mechanism 5.

[0077] This embodiment also provides a cleanroom crane, which is installed in the same way as in embodiment 1 (that is, two sets of dust collection components can be installed opposite each other on the bottom of the crane 6 frame and / or the bottom of the crane traveling trolley loading plate 61).

[0078] Since the fan blade 33 can perform dust suction when rotating in the forward direction (it does not suction when rotating in the reverse direction), when two sets of dust suction components are installed opposite each other, one set of dust suction components will perform dust suction when the traveling trolley or crane 6 moves forward; and the other set of dust suction components will perform dust suction when the traveling trolley or crane 6 moves backward. That is, it is ensured that there is a set of dust suction components that can perform dust suction when the traveling trolley or crane 6 moves forward or backward.

[0079] Example 3

[0080] The dust collection assembly provided in this embodiment is basically the same as that in embodiment 1. The only difference is that the output shaft and / or input shaft of the gear assembly 24 in this embodiment is composed of an outer sleeve, an inner sleeve, and a one-way bearing (not shown in the figure). The outer sleeve is fixedly installed on the outer ring of the one-way bearing, and the inner sleeve is fixedly installed on the inner ring of the one-way bearing. This arrangement can achieve the effect of directional transmission, that is, transmission in the required rotation direction. Under the action of the one-way bearing, the inner and outer sleeves can rotate synchronously and relative to each other.

[0081] Because the fan blades 33 in the vacuum assembly 3 only perform vacuuming during forward rotation, it can be configured such that when the output shaft and / or input shaft drives the fan blades 33 to rotate forward, the inner and outer sleeves rotate synchronously; and when the output shaft and / or input shaft drives the fan blades 33 to rotate in the opposite direction, the inner and outer sleeves rotate relative to each other. This configuration allows for the following: "When the drive caster 1 moves forward, the inner and outer sleeves rotate synchronously, and the fan blades 33 in the vacuum assembly 3 rotates forward; when the drive caster 1 moves backward, the inner and outer sleeves rotate relative to each other, and the fan blades 33 in the vacuum assembly 3 do not rotate."

[0082] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A vacuuming assembly, characterized in that, include: The system includes a drive caster (1), a transmission mechanism (2), a dust collection mechanism (3), and a collection box (4). The drive caster (1) drives the dust collection mechanism (3) through the transmission mechanism (2). The upper end of the dust collection mechanism (3) is connected to the collection box (4). The vacuuming mechanism (3) includes a vacuuming pipe (31), a plastic sheet (32), and a fan blade (33). The vacuuming pipe (31) consists of a straight pipe and an arc-shaped adapter. The arc-shaped adapter at the upper end of the vacuuming pipe (31) is located in the collection box (4) and connected to the collection box (4). A plastic sheet (32) is provided at the upper end of the vacuuming pipe (31) to cover the upper end of the vacuuming pipe (31). The upper end of the plastic sheet (32) is hinged to the upper end of the vacuuming pipe (31). The fan blade (33) is rotatably connected to the straight pipe of the vacuuming pipe (31) through a rotating shaft fixed in the middle. The output end of the transmission mechanism (2) is connected to the rotating shaft in the middle of the fan blade (33) to drive the fan blade (33) to rotate; The wheel in the drive caster (1) is rotatably connected to the caster mounting bracket through a rotating shaft fixed in its middle; The drive caster (1) includes a directional caster (11) and a pressure adjustment structure (12), the pressure adjustment structure (12) being mounted on the top of the directional caster (11); The pressure regulating structure (12) includes a threaded rod (121), a lifting plate (122), a guide rod (123), an adjusting nut (124), a spring (125), and a mounting plate (126). The threaded rod (121) is longitudinally fixedly installed on the top of the directional caster (11). The adjusting nut (124) is threaded onto the threaded rod (121). The lifting plate (122) has a circular hole in the middle for avoiding the threaded rod (121). The lifting plate (122) is fitted onto the... The threaded rod (121) abuts against the adjusting nut (124). Multiple sets of guide rods (123) are evenly arranged along the circumference of the lifting plate (122). The lower end of the guide rod (123) passes through the lifting plate (122) longitudinally and is fixedly connected to the top of the directional caster (11). The guide rod (123) and the lifting plate (122) are in sliding fit. A spring (125) is fixed on the top of the lifting plate (122), and a mounting plate (126) is fixed on the top of the spring (125).

2. A dust collection assembly according to claim 1, characterized in that, The transmission mechanism (2) includes a transmission sprocket (21), a driven sprocket (22), a chain (23), and a gear assembly (24). The transmission sprocket (21) is coaxially mounted on the rotating shaft in the middle of the wheel of the drive caster (1). The driven sprocket (22) is mounted on the input shaft of the gear assembly (24). The output shaft of the gear assembly (24) is connected to the rotating shaft in the middle of the fan blade (33). A chain (23) is wound between the transmission sprocket (21) and the driven sprocket (22).

3. A dust collection assembly according to claim 2, characterized in that, The gear assembly (24) includes a gearbox (241), a transmission bevel gear (242), and a driven bevel gear (243). The gearbox (241) is fixed to the side wall of the suction pipe (31). The transmission bevel gear (242) and the driven bevel gear (243) are both installed inside the gearbox (241). An input shaft is coaxially fixed in the middle of the transmission bevel gear (242). The input shaft passes through the gearbox (241) and is connected to the driven sprocket (22). The driven bevel gear (243) meshes with the side of the transmission bevel gear (242). An output shaft is coaxially fixed in the middle of the driven bevel gear (243). The output shaft is fixedly connected to the rotating shaft in the middle of the fan blade (33).

4. A dust collection assembly according to claim 1, characterized in that, The collection box (4) has a door (41) installed on its side wall. Several exhaust ports (42) are opened at the upper end of the side wall of the collection box (4), and each exhaust port (42) is covered with a dust filter (43).

5. A dust collection assembly according to claim 1, characterized in that, The lower end of the suction pipe (31) is equipped with a flipping mechanism (5), which includes a reset mechanism (51) and a flipping shovel (52). The flipper (52) is rotatably mounted at the lower end of the vacuum pipe (31) via a pivot. The pivot is biased to one side of the flipper (52), so that one end of the flipper (52) can be flipped downwards and tilted. The reset mechanism (51) is located on the side where the flipper (52) is tilted upwards, and it is fixedly installed on the lower end of the inner wall of the straight section of the suction pipe (31). The reset mechanism (51) includes a fixing block (511), a load-bearing component (512), a magnet (513), and a filter screen (514). The fixing block (511) is fixedly installed on the inner wall of the suction pipe (31). A cavity is provided in the middle of the fixing block (511). A ventilation opening (5111) is provided on the side of the fixing block (511) that is in contact with the inner wall of the suction pipe (31). The ventilation opening (5111) is located at the lower end of the side wall of the cavity and communicates with the cavity. An opening is provided on the suction pipe (31) at a position corresponding to the ventilation opening (5111). The top of the cavity is provided with an exhaust hole, the filter (514) is provided at the exhaust hole, and a magnet (513) is installed on the top of the cavity of the fixing block (511), and the magnet (513) is misaligned with the exhaust hole. The load-bearing component (512) includes a metal plate (5121) and an abutment plate (5122). The metal plate (5121) is disposed in the cavity in the middle of the fixing block (511) and is in clearance fit with the cavity. The abutment plate (5122) is fixed to the bottom of the metal plate (5121). The bottom of the fixing block (511) has an opening for avoiding the abutment plate (5122). The lower end of the abutment plate (5122) passes through the opening and extends out of the fixing block (511).

6. A dust collection assembly according to claim 5, characterized in that, The flipper (52) includes a flip plate (521) and an arc-shaped shovel block (522), the arc-shaped shovel block (522) being fixed to the side of the flip plate (521) that is tilted downwards.

7. A cleanroom crane, characterized in that, The bottom of the frame of the crane (6) and / or the bottom of the traveling trolley platform (61) in the crane (6) are equipped with a dust collection assembly as described in any one of claims 1-6.

8. An application of a vacuuming assembly as described in any one of claims 1-6, characterized in that, It is used in mobile devices that travel on grooved tracks.

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