CN109465924A - Suction hood device - Google Patents
Suction hood device Download PDFInfo
- Publication number
- CN109465924A CN109465924A CN201811647693.8A CN201811647693A CN109465924A CN 109465924 A CN109465924 A CN 109465924A CN 201811647693 A CN201811647693 A CN 201811647693A CN 109465924 A CN109465924 A CN 109465924A
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- Prior art keywords
- worm
- dust
- dust hood
- gear
- pivot angle
- Prior art date
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- 239000000428 dust Substances 0.000 claims abstract description 133
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 241000237858 Gastropoda Species 0.000 claims description 4
- 241000237509 Patinopecten sp. Species 0.000 claims description 4
- 235000020637 scallop Nutrition 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 9
- 239000007924 injection Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G3/00—Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
This application discloses a kind of suction hood devices, including dust hood and conduit assembly, the dust hood is equipped with aperture and is connected to by the aperture with conduit assembly, it further include detection components and driving assembly, the dust hood is connect with driving assembly, the movement of the driving component dust hood according to the detection signal drives of detection components.The suction hood device enables dust hood root Ju to be changed by the shape lines of timber and adjust the relative position with timber at any time, the vacuum chamber of dust hood is set to surround the injection range of dust constantly, get rid of influence of the dust hood to the limitation of process and the variation of log shapes lines to pick-up performance, the main region dust suction for keeping dust hood to splash in dust, to guarantee good dust and pick-up performance.
Description
Technical field
This application involves woodworking machinery field, more particularly, to a kind of suction hood device, which can be with
The shape lines of timber change and automatic adjusting position, while guaranteeing good pick-up performance.
Background technique
In the field of woodworking machinery, existing dust hood is roughly divided into two kinds: one kind is comprehensive packaging type dust hood, this
Kind dust hood pick-up performance is good, but due to bulky, occupied space is more, even if reaching sealing partition dust and not influencing
The purpose of environment, but there are dust accumulation dead angles for the inside of dust hood, it is highly inconvenient to daily maintenance and cleaning.
Another kind is semi-packing type dust hood, and this dust hood can also be roughly divided into both of which: mode one, dust hood
It is annular in shape around cutter, equipped with the banister brush concordant with cutter, and the brush circle of encirclement is formed to stop dust from flying, but it is soft
Hairbrush can only stop dust to sputter and cannot obstruct air and pass through.That is, for the mechanism of the aspiration of negative pressure, banister brush
Part can not play the role of pipeline, and negative pressure pressure begins to lose in fur brush element, and pick-up performance is had a greatly reduced quality.Simultaneously
Banister brush in process by timber stop and be bent, thus be easy by cutter cutting and lead it is gradually sparse to banister brush, most
The effect failure for stopping dust from flying eventually, also results in compared with lossy.Mode two wraps up 180 degree, dust suction in the radial direction of cutter
The opening of cover generated height fall gap when being again provided with banister brush to adapt to processing timber curved surface, to play blocking
The effect of dust sputtering.However, this dust hood, other than having the shortcomings that one dust hood of mode, there are two fatal to lack
Point: when timber profile amplitude is excessive, dust hood can hinder processing of the cutter to timber；Dirt direction is penetrated when tool sharpening curve
When being in 60 degree or more with the angle of suction inlet, dust is easy to be repelled, and does not have any pick-up performance.
Therefore, it is necessary to a kind of suction hood devices, can not only change and automatic adjusting position with the shape lines of timber, and
And guarantee good pick-up performance simultaneously.
Summary of the invention
The application's is designed to provide a kind of suction hood device, and the suction hood device is in timber process with timber
The variation of shape lines and the dust hood of automatic adjusting position, while guaranteeing good pick-up performance.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of suction hood device, including dust hood and conduit assembly, the dust hood are equipped with aperture and by the apertures and pipe
The connection of road component, suction hood device further includes detection components and driving assembly, and the dust hood is connect with driving assembly, the drive
Dynamic component dust hood according to the detection signal drives of detection components movement.
In timber process, detection components detect the position between the shape lines and dust hood and timber of timber
Relationship, and coherent signal is exported, after driving assembly receives signal detected, will be driven according to the signal dust hood with
The shape lines and change in location of timber and move, so as to adjust the relative position of dust hood and timber, so that cutting timber
When the injection range of dust that generates surrounded that (the injections range refers to that Tool in Cutting is round and timber machined surface by dust hood
Common tangent and certain angular range along the expansion of cutter direction of rotation), achieve the purpose that collect dust and dust suction.Specifically,
Detection components are mountable on dust hood, to more accurately detect to the relative position between dust hood and timber.Inspection
Surveying component can also not reside on dust hood, as long as being able to detect between the shape lines and dust hood and timber of timber
Positional relationship.
Preferably, driving assembly includes motor, gear shaft, driven gear and connector, motor and gear shaft
Connection, gear shaft engages with driven gear, and connector is with first through hole and the second through-hole, and the driven gear is with respect to the
One through-hole is fixed, and the dust hood is connect with second through-hole.Specifically, driven gear is annular in shape and extends upward ring-type
Step, and circular step is equipped with notch, and the first through hole of connector is equipped with protrusion.It is cyclic annular in suction hood device assembly
Driven gear is simultaneously fixed at the first through hole of connector by notch with male cooperation by step insertion first through hole.Root
According to actual needs, driven gear is configured to may be reversed be equipped with protrusion, and first through hole is equipped with notch, it equally can be real
The purpose now driven gear being fixed at the first through hole of connector.During suction hood device running, electrode makes sliding tooth
Axis rotation is taken turns, is fixed due to driven gear with the first through hole of connector and is engaged with gear shaft, so driving
Movable gear shaft drives driven gear (together with connector) to rotate.It is connect again due to dust hood with the second through-hole, so inhaling
Dust hood is also adjusted the relative position with timber by driving.It should be noted that suction hood device running during, dust hood with
Connector can be relatively fixed.
Preferably, first through hole is equipped with compression ring, and driven gear, first through hole and compression ring are coaxially pacified from bottom to top
Dress.According to actual needs, compression ring and driven gear are coaxially placed on the cutter shaft of cutter, so that driven gear and connector can
It rotates along the center of cutter shaft without axially movable.
Preferably, driving assembly further includes axle bed, and gear shaft is mounted on axle bed and is connected to motor, and drives gear
Axis is equipped with position contact block, and the position contact block is equipped with contact arm outstanding, and axle bed is equipped with position switch, the position switch inspection
Survey the position of the contact arm.Specifically, when motor operates, gear shaft, which is motor driven, to rotate, and is fixed on drive
Position contact block and position contact block contact arm outstanding also rotate therewith on movable gear shaft, are mounted on the position on axle bed at this time
Set the position that switch is able to detect contact arm.Its role is to, when gear shaft rotates to preset extreme position, i.e. contact arm
When rotating to preset extreme position, position switch is detected and is left the motor off, and continues to rotate to stop gear shaft.
Preferably, the suction hood device of the application further includes pivot angle worm gear and the worm screw group with the pivot angle worm gear
Part, worm component installation is on the coupling and opposite connector is fixed, the aperture of pivot angle worm gear and the second through-hole and dust hood
Coaxially connected and be mounted between connector and dust hood, the pivot angle worm gear is fixed with respect to dust hood, the worm component energy
Enough driving pivot angle worm gear rotations, and then dust hood is driven to rotate relative to connector.In this application, pivot angle worm gear and worm component
It is used cooperatively, main purpose makes dust hood be suitble to various sizes of cutter.Due to the injection of various sizes of its dust of cutter
Range is different, so the angle for needing correspondingly to adjust dust hood relative to cutter, to guarantee that the injection range of dust is inhaled
Dust hood covering.When replacing various sizes of cutter (at this point, entire mechanism is in off working state), by driving worm screw group
Part, since pivot angle worm gear is fixed with respect to dust hood, drives dust suction so that pivot angle worm gear engaged therewith rotates by a certain angle
Cover rotates identical angle.
Preferably, worm component includes worm seat, worm screw knob and worm screw, worm screw be inserted into worm seat and with outside worm seat
Worm screw knob be fixedly connected, rotate worm screw in worm seat by rotary worm knob.Due to worm component worm screw with
The engagement of pivot angle worm gear, when worm screw knob is rotated by a certain angle, thus worm screw is driven to rotate certain angle, so that nibbling with it
The pivot angle worm gear of conjunction rotates, the angle so as to adjust dust hood relative to cutter.
Preferably, worm seat is equipped with inner concave arc surface corresponding with pivot angle worm gear outer surface towards the side of pivot angle worm gear,
Inner concave arc surface is equipped with the rectangular platform of protrusion close to the side of connector, and pivot angle worm gear is equipped with fan-shaped recessed close to the side of connector
Portion.When adjusting angle of the dust hood relative to cutter, pivot angle worm gear can be rotated along positive and negative both direction, the sector of pivot angle worm gear
Recess portion set there are two straight flange to limit the extreme position that pivot angle worm gear is rotated toward positive and negative both direction.When pivot angle worm gear is rotated into
When two extreme positions (positive direction and opposite direction), the straight flange of scallop section abuts the rectangular platform of worm seat protrusion respectively
Two straight flanges, to limit the maximum rotational steps of pivot angle worm gear.
Preferably, dust hood includes opening and sealing surface, and plane and sealing surface where being open are collectively formed vacuum chamber, open
In guiding angle setting between plane and sealing surface where mouthful.According to actual needs, dust hood may be structured to its vacuum chamber
One side towards connector first through hole is opening, when cutter shaft is co-axially mounted with first through hole, dust hood can be kept in dust
The main region dust suction of splashing, so that dust enters vacuum chamber and is collected.The vacuum chamber of the dust hood also has sealing surface, should
Sealing surface is configured to the plane where opening into guiding angle, which plays guiding to the dust for entering vacuum chamber and make
With the dust for avoiding high speed from splashing splashes out outside vacuum chamber because hitting sealing surface.Advantageously, the guiding angle can be 45 degree or
Below.
Preferably, conduit assembly includes hollow coaxial connecting tube and union, and the union is placed on the outside of connecting tube,
The outer surface of the connecting tube is equipped with outer semi-circular recesses, and the inner surface of the union is equipped with interior semi-circular recesses, described outer
Circular channel is collectively formed in semi-circular recesses and interior semi-circular recesses, and ball, the ball energy are densely covered in the circular channel
It is enough to be rolled in circular channel.According to actual needs, the aperture of dust hood can be configured to positioned at the bottom of dust hood, and living
Connector, connecting tube and the aperture of dust hood are connected to from bottom to up and the internal diameter of three is equal.When union and connecting tube fill
After matching, the outer semi-circular recesses that the outer surface of interior semi-circular recesses and connecting tube that the inner surface of union is equipped with is equipped with are total
The center of circle, the circular channel that union inner surface is consequently formed and connects between tube outer surface are used for the ball that gathers.These balls can
It in rolling in circular channel, rotate freely union can relative to connecting tube.Advantageously, connecting tube can be placed in pivot angle worm gear
And secure fit.Advantageously, the outer surface of union lower end is equipped with three steps from large to small, for being socketed different tube diameters
Hose.
Preferably, the outer surface of connecting tube is equipped with sealed groove, is equipped with sealing ring in the sealed groove.The sealing ring is put
It sets between union inner surface and connection tube outer surface, plays sealing function.
Compared with the prior art, the beneficial effect of the suction hood device of the application is:
The suction hood device of the application further includes that detection components and driving assembly are made by the way that dust hood to be connect with driving assembly
Obtaining driving assembly can drive dust hood to move according to the detection signal of detection components, to enable dust hood root Ju by timber
The variation of shape lines and adjust the relative position with timber at any time, such as angle and distance of the dust hood relative to timber
Deng enabling the vacuum chamber of dust hood to surround the injection range of dust constantly, get rid of limitation and wood of the dust hood to process
Material shape lines change the influence to pick-up performance, the main region dust suction for keeping dust hood to splash in dust, to guarantee good
Good dust and pick-up performance.
Detailed description of the invention
Fig. 1 shows the decomposition view of the suction hood device of the embodiment of the present application.
Fig. 2 shows the cross-sectional views of the suction hood device of the embodiment of the present application.
Fig. 3 is shown in the suction hood device of the embodiment of the present application, the cooperation cross-sectional view of worm screw and pivot angle worm gear.
Fig. 4 is shown in the suction hood device of the embodiment of the present application, the rectangular platform of worm seat and the sector of pivot angle worm gear
The cooperation schematic diagram of recess portion.
Fig. 5 is shown in the suction hood device of the embodiment of the present application, the mesh schematic representation of gear shaft and driven gear.
Fig. 6 is shown in the suction hood device of the embodiment of the present application, dust hood when simulating the tool sharpening timber of big cutter diameter
Position and dust suction schematic diagram.
Fig. 7 is shown in the suction hood device of the embodiment of the present application, dust hood when simulating the tool sharpening timber of small cutter diameter
Position and dust suction schematic diagram.
Specific embodiment
In the following with reference to the drawings and specific embodiments, invention is further described in detail.
As depicted in figs. 1 and 2, the suction hood device of the present embodiment includes dust hood 61, conduit assembly, driving assembly and inspection
Survey component.Specifically, driving assembly includes motor 42, gear shaft 55, driven gear 34 and connector 30.In the present embodiment
In, connector 30 is in swing arm shape, is equipped with biggish first through hole 301 and lesser second through-hole 304 at the both ends of swing arm.First
The protrusion 302 extended to the center of circle is equipped in through-hole 301, driven gear 34 is annular in shape and extends upward circular step, cyclic annular platform
Rank is equipped with notch 341, and the circular step of driven gear 34 is embedded in first through hole and via the notch 341 and first through hole on step
Protrusion 302 in 301, which cooperates, fixes.In other embodiments, be also possible to driven gear be equipped with protrusion and first through hole is equipped with
Thus driven gear is fixed at first through hole by notch, alternatively, the two is fixed to each other by other connection fit systems.
Connector 30 is located at the upper plane at first through hole 301 equipped with compression ring 31.Driven gear 34, first through hole 301 and compression
Ring 31 is co-axially mounted from bottom to top.Further, when installing cutter, compression ring 31 and driven gear 34 are coaxially placed on cutter
Cutter shaft on.Compression ring 31 can fasten locking on cutter shaft by screw 33 and washer 32, thus limit driven gear 34 and connection
Fitting 30 can be rotated along the center of cutter shaft without axially movable.
Conduit assembly includes hollow coaxial connecting tube 59 and union 56.Connecting tube 59 is led to across the second of connector 30
Hole 304, in broad in the middle small in ends step-like, one end step is recessed from sealing is successively arranged inside outside for the outer surface of the connecting tube 59
Slot and outer semi-circular recesses, and other end step is equipped with screw thread.Union 56 is placed on the outside of connecting tube and covers connecting tube
Sealed groove and outer semi-circular recesses.The inner surface of union 56 is equipped with the through-hole equal with the internal diameter of connecting tube 59 and is greater than
The interior step of the through-hole, the interior step are equipped with interior semi-circular recesses, and the outer semicircle of the interior semi-circular recesses and connecting tube is recessed
The concyclic heart of slot, the circular channel that union inner surface is consequently formed and connects between tube outer surface are used for the ball 58 that gathers.These
Ball 58 can make union 56 that can rotate freely relative to connecting tube 59 in rolling in circular channel.The sealing of connecting tube 59 is recessed
Slot is square and is inlaid with O-ring seal 57(standard component), sealing ring 57 is butted on the interior step surface of union 56, plays sealing
Effect.In addition, in the present embodiment, the outer surface of union 56 is step-like in three from large to small, different tube diameters can be socketed
Hose.
The end of thread of connecting tube 59 is combined with pivot angle worm gear 60, and the periphery of pivot angle worm gear 60 is equipped with worm-gear toothing.In this reality
It applies in example, there is stepped hole in pivot angle worm gear 60, be equipped with the fixation that is threadedly engaged of screw thread and connecting tube 59 in hole, and the end face of step
It is bonded with the end face of 59 end of thread of connecting tube.The lower plane of pivot angle worm gear 60 and the step end face of 59 end of thread of connecting tube paste respectively
Together in the upper and lower surface of connector 30, mutual axial movement is thus limited.
Dust hood 61 is mounted on pivot angle worm gear 60, and dust hood 61 is fastened on pivot angle worm gear 60 by screw 65 and washer 66
On.In the present embodiment, dust hood 61 is generally fan-shaped column structure, including opening and sealing surface in cross section, and is open
Vacuum chamber is collectively formed in the plane and sealing surface at place.The one side of first through hole 301 of the vacuum chamber towards connector 30 is opening.
When cutter shaft and first through hole 301 are co-axially mounted, the main region dust suction that dust hood can be kept to splash in dust, so as to dust into
Enter vacuum chamber and is collected.The sealing surface 611 of dust hood 31 is configured to the plane where opening into guiding angle, the angle
Guiding role is played to the dust for entering vacuum chamber, the dust for avoiding high speed from splashing splashes out outside vacuum chamber because hitting sealing surface.
In the present embodiment, which is 45 degree.In addition, the bottom of dust hood 61 is equal with the internal diameter of connecting tube 59 equipped with diameter
Aperture, which is connected to the vacuum chamber of dust hood 61 and connecting tube 59.
The top of dust hood 61 is fixed with detection components by screw 63 and washer 64, which includes detection switch
62 and stock 621.In the present embodiment, stock 621 close to dust hood 61 opening and sealing surface 611 angle where side.
During suction hood device running, timber pushes stock and touches detection switch output detection signal, and driving assembly is according to the letter
Number and drive gear shaft 55 rotate.
The suction hood device of the application further includes the worm component cooperated with pivot angle worm gear 60, and worm component is mounted on connection
On part 30 and opposite connector 30 is fixed.As shown in figure 3, the worm component includes including worm seat 75, worm screw knob 74 and snail
Bar 67.Worm seat 75 is equipped with step through-hole in the horizontal direction, and worm screw 67 is mounted in the step through-hole.Worm screw 67 is equipped with big platform
Rank and small stair, the step aperture stretching worm seat 75 that small stair passes through worm seat 75 is a bit of outside, covers in tape splicing at the segment
The worm screw knob 74 of stepped hole, is fastened on the small stair of worm screw 67 by screw 72 and washer 73, is thus limited worm screw 67 and is existed
One-movement-freedom-degree on axial direction.The small stair and 74 inner hole of worm screw knob of worm screw 67 are equipped with keyway, and cooperation is flat in keyway
Key 68.The worm spiral tooth cooperated with pivot angle worm gear 60 is machined at the big step of worm screw 67, for the snail with pivot angle worm gear 60
Gear teeth meshing.Since the injection range of various sizes of its dust of cutter is different, so needing correspondingly to adjust 61 phase of dust hood
For the angle of cutter, to guarantee that the injection range of dust is covered by dust hood.As shown in Figure 6 and Figure 7, different rulers are being replaced
When very little cutter (at this point, entire mechanism is in off working state), make worm screw 67 in worm seat 75 by rotary worm knob 74
Middle rotation, so that pivot angle worm gear 60 engaged therewith rotates by a certain angle, since pivot angle worm gear 60 is fixed with respect to dust hood 61, because
This drives dust hood 61 to rotate identical angle, guarantees that dust hood 61 keeps sealing surface 611 and enters the angle of dirt tangent line, make to
Reach optimal dust guiding role.
As shown in figure 4, worm seat 75 is equipped in corresponding with pivot angle worm gear outer surface towards the side of pivot angle worm gear 60
Cancave cambered surface is equipped with the rectangular platform 751 of protrusion close to the side of connector, and pivot angle worm gear is equipped with fan close to the side of connector
Shape recess portion 601.When adjusting angle of the dust hood 61 relative to cutter, pivot angle worm gear 60 can be rotated along positive and negative both direction, pendulum
The scallop section 601 of angle worm gear set there are two straight flange to limit the extreme position that pivot angle worm gear 60 is rotated toward positive and negative both direction.
When pivot angle worm gear is rotated into when two extreme positions (positive direction and opposite direction), the straight flange of scallop section 601 abuts respectively
Two straight flanges of the rectangular platform 751 of worm seat protrusion, to limit the maximum rotational steps of pivot angle worm gear.
In addition, the upper surface of worm seat 75 is additionally provided with two elongated slot through-holes, it is located at first through hole on position and connector
301 and the second threaded hole 303 between through-hole 304 it is corresponding, screw 70 fits into the threaded hole of connector by the elongated slot through-hole
In 303, worm seat 75 is anchored on connector 30.The center of the setting of elongated slot through-hole adjustable worm screw 67 and pivot angle worm gear 60
Away to achieve the purpose that eliminate gap.
In the present embodiment, driving assembly further includes axle bed 50.There is through-hole among axle bed 50, wherein one end of through-hole is equipped with
Step is equipped with bearing 51 on the step, and the other end of through-hole is equipped with big step and small stair, and bearing 37 is housed on small stair.
Gear shaft 55 passes through the inner hole of two bearings and stretches out a bit of be placed in big step.The driving assembly of the present embodiment also wraps
Shaft coupling 47 is included, shaft coupling 47 is placed on a bit of upper of the stretching of gear shaft 55 and by straight trough elastic cylindrical pin 38 and driving
Gear shaft 55 is connected and fixed.The end face of shaft coupling 47 resists the end face of bearing 37 to limit the axial of gear shaft 55 and move
It is dynamic.The lower end of axle bed 50 is fixed by screw 40 and washer 41 and motor flange 44, passes through screw 46 and pad on motor flange 44
Circle 45 is fixed with motor 42, and shaft coupling 47 is linked on the output shaft of motor 42 and is fastened by holding screw 39.
Position contact block 52 is fixed with by straight trough elastic cylindrical pin 53 under the gear of gear shaft 55, position contact block 52 is set
There is contact arm 521 outstanding.The side of axle bed 50 is equipped with platform, passes through screw 48 on platform and is fixed with position switch 49, position is opened
Close the position of 49 detection contact arms 521.Specifically, when suction hood device operates, gear shaft 55 is revolved by the driving of motor 42
Transhipment is dynamic, rotates dust hood 61 by a series of components.Since the union 56 of 61 lower section of dust hood can connect during running
Upper hose, and hose cannot ad infinitum have enough to meet the need, and otherwise will cause the tangled up and knotted of hose.It is needed at this time for dust hood
Device predetermined limit position, to guarantee that entire mechanism will not ad infinitum rotate.When the rotation of gear shaft 55, it is fixed on sliding tooth
Position contact block 52 and its contact arm 521 on wheel shaft 55 also rotate therewith, the position switch being mounted on axle bed 50 at this time
49 are able to detect the position of contact arm 521.Its role is to when gear shaft 55 rotates to preset extreme position, also
When being that contact arm 521 rotates to preset extreme position, position switch 49 detects and stops motor 42, to stop sliding tooth
Wheel shaft 55 continues to rotate.
In addition, driving axle bed 50 passes through two elongated slots when suction hood device is mounted in the mechanism for need dust-absorbing function
And screw 35 and washer 36 are fixed in the mechanism, are guaranteed the gear and 34 correct engagement of driven gear of gear shaft 55, are protected
Card is between the two without back clearance.
It is described herein the operation of the suction hood device of the present embodiment.As shown in Figure 1 and Figure 5, the inspection on dust hood 61
It surveys switch 62 and exports detection signal since stock 62 is pushed by timber, and motor 42 drives driving gear according to the detection signal
Axis 55 rotates, since gear shaft 55 is engaged with driven gear 34, so driven gear 34 drives the connection for being secured to cooperation
Fitting 30 rotates.Since dust hood 61 and connector 30 are relatively fixed at this time, thus dust hood 61 with the rotation of connector 30 and
Rotation changes dust hood 61 and the relative position of adjust automatically and timber with the shape lines of timber, makes dust hood 61
Vacuum chamber can surround the injection range of dust constantly, to guarantee good pick-up performance.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of suction hood device, including dust hood and conduit assembly, the dust hood be equipped with aperture and by the aperture with
Conduit assembly connection, which is characterized in that further include detection components and driving assembly, the dust hood is connect with driving assembly, institute
State the movement of driving assembly dust hood according to the detection signal drives of detection components.
2. suction hood device according to claim 1, which is characterized in that the driving component includes motor, driving gear
Axis, driven gear and connector, the motor are connect with gear shaft, and the gear shaft is engaged with driven gear, institute
Connector is stated with first through hole and the second through-hole, the driven gear is fixed with respect to first through hole, the dust hood with it is described
The connection of second through-hole.
3. suction hood device according to claim 2, which is characterized in that the first through hole is equipped with compression ring, described
Driven gear, first through hole and compression ring are co-axially mounted from bottom to top.
4. suction hood device according to claim 2, which is characterized in that the driving component further includes axle bed, the drive
Movable gear shaft is mounted on axle bed and is connected to motor, and the gear shaft is equipped with position contact block, and the position contact block is set
There is contact arm outstanding, the axle bed is equipped with position switch, and the position switch detects the position of the contact arm.
5. suction hood device according to claim 2, which is characterized in that further include pivot angle worm gear and with the pivot angle snail
The worm component of cooperation is taken turns, worm component installation is on the coupling and opposite connector is fixed, the pivot angle worm gear and the
The aperture of two through-holes and dust hood is coaxially connected and is mounted between connector and dust hood, and the pivot angle worm gear is with respect to dust suction
Cover is fixed, and the worm component can drive pivot angle worm gear to rotate, and then dust hood is driven to rotate relative to connector.
6. suction hood device according to claim 5, which is characterized in that the worm component includes worm seat, worm screw rotation
Button and worm screw, worm screw are inserted into worm seat and are fixedly connected with the worm screw knob outside worm seat, make snail by rotary worm knob
Bar rotates in worm seat.
7. suction hood device according to claim 6, which is characterized in that the worm seat is set towards the side of pivot angle worm gear
There is inner concave arc surface corresponding with pivot angle worm gear outer surface, the inner concave arc surface is equipped with the rectangular of protrusion close to the side of connector
Platform, the pivot angle worm gear are equipped with scallop section close to the side of connector.
8. suction hood device according to any one of claims 1 to 7, which is characterized in that the dust hood include opening and
Vacuum chamber is collectively formed in sealing surface, plane and sealing surface where the opening, the plane and sealing surface where the opening it
Between in guiding angle setting.
9. suction hood device according to any one of claims 1 to 7, which is characterized in that the conduit assembly includes hollow
Coaxial connecting tube and union, the union are placed on the outside of connecting tube, and the outer surface of the connecting tube is equipped with outer semicircle
The inner surface of groove, the union is equipped with interior semi-circular recesses, the outer semi-circular recesses and the common shape of interior semi-circular recesses
At circular channel, ball is densely covered in the circular channel, the ball can roll in circular channel.
10. suction hood device according to claim 9, which is characterized in that it is recessed that the outer surface of the connecting tube is equipped with sealing
Slot, the sealed groove is interior to be equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811647693.8A CN109465924B (en) | 2018-12-29 | 2018-12-29 | Dust hood device |
Applications Claiming Priority (1)
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| CN109465924B CN109465924B (en) | 2023-12-22 |
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| CN2936640Y (en) * | 2006-08-11 | 2007-08-22 | 巨庭机械股份有限公司 | Regulating shift mechanism of wood planer motor base |
| CN101244467A (en) * | 2007-02-15 | 2008-08-20 | 日立工机株式会社 | Power tool with chips ejecting mechanism |
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| CN109465924B (en) | 2023-12-22 |
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