CN106425885A - Shot blasting machine with V-shaped blades - Google Patents

Abstract

The invention discloses a shot blasting machine with V-shaped blades. An impeller assembly matched with the shot blasting machine comprises end discs and the V-shaped blades. The inner side surfaces of the two end discs are opposite to each other, the two end discs are assembled via a hub to form an impeller, a plurality of V-shaped grooves are formed in the corresponding inner side surfaces of the two end discs in an alignment manner, and the heads of the V-shaped grooves are radially arranged; two ends, which are positioned in the axial directions of the end discs, of each V-shaped blade are positioned and are fixed into the corresponding V-shaped grooves formed in the two end discs, and shot blasting working faces are arranged on two outer side surfaces, which are positioned in the peripheral direction of the impeller assembly, of each V-shaped blade. The bottoms of the V-shaped grooves can selectively extend all the way to the outer edges where the end discs are positioned, so that the V-shaped blades can be arranged in the V-shaped grooves along the radial directions of the end discs; fixing components for fixing the V-shaped blades are arranged on the end discs. The shot blasting machine with the V-shaped blades has the advantage of long service life.

Description

V-type vane impeller device

Technical field

The present invention relates to a kind of impeller head.

Background technology

Ball blast（shot blast）It is a kind of process of surface treatment of mechanical aspects, similar technique also has sandblasting and spray Ball.Ball blast is a cold-treating process, is divided into throw-ball clearing technology and throwing pill strengthening technique.

The primary structure body of impeller head is impeller body, is generally equipped with multiple blades on impeller body, impeller body be located at ball blast The shot wheel at wheel center is mounted on the main shaft by such as motor-driven together.Entering pills apparatus are connected with shot wheel, for providing bullet Ball, is then distributed away by shot wheel, the speed obtain bullet with the rotation of impeller body required for.

With regard to impeller head, its performance is closely related with blade shape, and the shape of blade can also affect its service life and Fixed form, fixed form then affects which maintainable.Most of impeller head can only one-directional rotation at present.Typically, such as Chinese patent literature CN202640171U, it discloses the impeller blade used by a kind of shot-blasting machine, and the blade for being used is arc Blade, such blade rigidity of itself except depending on also relevant with the thickness of its own in addition to material, but by its installing space Impact, it is too thick that blade is not easy to do, and its service life depends primarily on the use of special substance, and such as high manganese, causes which to become This is higher.Its working method is single, by the use of its arc blade extrados as work surface, regarded based on its structure for being provided Figure can determine that its rotation can only be rotated counterclockwise.

And if the blade used by Chinese patent literature CN103600300A is equally arc shaped blade, only its blade Mounting means is with Chinese patent literature CN202640171U mounting means conversely, can only also realize clockwise rotation.This kind of leaf The mounting means of piece is usually that the side of blade is arranged on the end plate of impeller, such as Chinese patent literature CN202640171U, its Depend on the one side of dovetail groove fixing, under this kind of rigid condition, the support force that the both sides of blade are subject to is different, easily produces blade Deformation.

Chinese patent literature CN204639939U discloses a kind of fixed structure of impeller head impeller body, and its fixed form is The fixation of blade is carried out based on two disks, wherein disk is located at the root of blade, is analogous to the fixation to root of blade, blade Still there is long overhanging, during wheel rotation, vibration is easily produced, and affect its service life and shot-blasting quality.

And if Chinese patent literature CN203495774U is then using the pill casting wheel of integral type, the structure of integral type is although entirety Structural strength height, but maintainable poor, blade cannot be then changed, cause scrapping for whole impeller once damaging.

Content of the invention

In view of this, it is an object of the invention to provide one kind can be carried out Shot Blasting under the conditions of rotating V-type vane impeller device, and the service life of the V-type vane impeller device is long.

The present invention is employed the following technical solutions：

A kind of V-type vane impeller device, including impeller assembly with hub bore and installed in hub bore for providing bullet Divide ball device, the impeller assembly includes：

End plate, with two, two end plate medial surface are relative, and combine impeller body by wheel hub, wherein, two end plate respective inside Formation in the face of position has multiple V-groove, and the centripetal setting of head of V-groove；

V-type blade, the V-type blade is positioned at the two ends of end plate axial direction and is fixed in the V-groove that formed on two end plate, V-type Blade is ball blast work surface in two lateral surface of impeller assembly circumference.

Above-mentioned V-type vane impeller device, alternatively, the bottom land of the V-groove extends to the outer rim of place end plate, so as to V-type blade can load along the radial direction of end plate；

End plate is provided with the fixed component for fixing V-type blade.

Alternatively, the interior V mouth of the V-type blade is pressure-bearing mouth；

Axially across end plate the fixed component centripetal side pressure on the pressure-bearing mouth.

Alternatively, the fixed component is bolt；

Correspondingly, the bolt hole of position relative with pressure-bearing mouth is formed with two end plates.

Alternatively, the tail end of bolt is formed with split pin or has pin-and-hole, with bolt hole corresponding to bolt tail end Form split pin connection.

Alternatively, the V-type blade is structure as a whole, and the V-type blade includes：

Base, is plate profile structure, and the two ends for mating V-type blade respectively have one, and the groove depth phase of the thickness of slab of plate profile structure and V-groove With；

Lamellar body, between two bases, base is higher by work surface in work surface side, and makes work surface constitute base the raised area institute The bottom land of constraint.

Alternatively, the head of the V-groove is that round end, correspondingly, the head of V-type blade is also round end.

Alternatively, two afterbodys of the V-type blade are also circular.

Alternatively, the angle of the V-groove is 30 ~ 33 degree.

Alternatively, also there is an axially arranged pin between two adjacent V-types interlobate end plate in space.

According to the present invention, provide V-type blade, each V-type blade in impeller assembly circumference, there are two work surfaces, inverse Hour hands side one, side clockwise, so as to can be carried out ball blast in the case of rotating, one work surface fails, another Work surface still can be used, equivalent to the twice of common blade service life with this understanding.While V-type blade is equivalent to two The assembly of individual vanelets, overall structural strength is more than the structural strength of individual blade, and generally speaking rigidity also can be more preferable, i.e., It is to produce vibration, the amplitude of vibration can also reduce.While V-type blade is positioned by V-groove, can be formed big to V-type blade The circumference constraint of cause, binding effect is good, can further reduce vibration, vibration weakening, and the damage to connector etc. will subtract Weak, service life is improved such that it is able to further.

Description of the drawings

Fig. 1 is a kind of explosive view of the V-type vane impeller device according to the present invention.

Fig. 2 is a kind of assembling structure schematic diagram of V-type vane impeller device.

Fig. 3 is a kind of blade wheel structure schematic diagram.

Fig. 4 is the structural representation that a kind of end plate is combined into impeller body.

Fig. 5 is a kind of end disk construction front view.

Fig. 6 is a kind of V-type blade construction schematic diagram.

In figure：1.V type blade；2. end plate；3. pin；4.V type blade fixing bolt；5. split pin；6. shot wheel；7. fixed To set；8. terminal pad；9.V type impeller blade assembly；1-1. blade bolt bearing；1-2. base；1-3. lamellar body；2-1. post Pin-and-hole；2-2.V type blade fixed bolt hole；2-3.V type groove.

Specific embodiment

With reference to Figure of description 2, V-type vane impeller device is typical wheeled unit, its overall similar cylinder, or waits Cylinder is imitated, therefore its end face its axial end face of essence.So-called radial direction is then the wheeled axle with vane impeller device generally speaking Radial direction under the conditions of line structure.

For V-type blade 1, it is a V-block which is overall, based on wheeled construction, for the structure shown in Fig. 6, its bottom Seat 1-2 is configured to the end face plate part of V-block, the lamellar body 1-3 shown in figure be work surface and be based on rotation direction and with front Side and trailing flank.Simultaneously as V-type vane impeller device can be with rotating, therefore, leading flank is also trailing flank, generally speaking, Work surface is that the front-back of V-block has no effect on correct understanding of the those skilled in the art to which.

In being referred to as in V-type blade 1V mouth, referred to as outer outside V mouth, generally speaking, on internal and external relation based on this.

A kind of V-type vane impeller device as described in Fig. 1-4, its main body includes 4 parts, is V-type impeller blade group successively Zoarium 9, terminal pad 8, shot wheel 6 and orienting cover 7, wherein V-type impeller blade assembly 9 is with hub bore, but hub bore here It is not direct connecting shaft, but orienting cover 7 and shot wheel 6 is installed, and terminal pad 8, wherein hub bore is towards between V-type blade 1 Position be air switch, hub bore inner sleeve orienting cover 7, have bullet on orienting cover 7 and portal, shot wheel 6 is then inserted in orienting cover 7, then Constrained in orienting cover 7 using terminal pad 8, terminal pad 8 is similar to bearing end cap with holes, and shot wheel 6 is on axial component ground Lean out terminal pad 8.

Wherein generally speaking orienting cover 7 and shot wheel 6 can be understood as the axle of V-type impeller blade assembly 9, with hub bore phase Corresponding.

With regard to the impeller assembly, referring to Figure of description 3-5, its agent structure includes：

End plate 2, with two, is similar to the end cap of cylindrical tube, and which is the main body for constituting impeller body, it is understood that for impeller sets Fit holder part, can install miscellaneous part based on this.Its for such as V-type blade 1 mounting structure be using type face The groove of cooperation is installed, V-groove 2-3 as shown in Figure 4.

Relatively, two end plates, 2 medial surface is relative（In impeller assembly axial direction, two ends are interior relatively, are outer on the contrary）, two End plate 2 combines impeller body by wheel hub, and in some applications, two end plates 2 and wheel hub can be integrative-structures, and another In some applications, it is removable structure between end plate 2 and wheel hub.

The position of V-type blade 1 in coupling Fig. 3, two end plates 2 have V-groove 2-3, it is clear that V-groove 2-3 is in two end plates 2 On be corresponding, be para-position in position.

Then can clearly find out the basic layout of V-groove 2-3 in Fig. 5, in figure V-groove 2-3 has 6, its small end or The centripetal setting of head, centripetal necessarily aforesaid fundamental reference system, the i.e. axle center of the wheeled construction of impeller head here, in other words V-groove 2-3 is centripetal setting.

Multiple V-groove are uniformly laid around the axis of impeller head.

With regard to V-type blade 1, then it is a kind of symmetrical structure, the plane of symmetry was the impeller head sagittal plane on V-type blade summit.

The positioning of V-type blade 1, then depend on V-groove 2-3 as previously mentioned, and V-type blade 1 is identical with the taper of V-groove 2-3, After V-type blade 1 is embedded in V-groove 2-3, its end face edge is subject to V-groove closely and reliable constraint, and Static stiffness is greatly improved.

Simultaneously because a V-type blade 1 is equivalent to two common blades, therefore, the Static stiffness of its own and dynamic stiffness are all It is improved, so as in ball blast, the vibration that blade itself is produced is less.

Correspondingly, V-type blade 1 has a natural joint, that is, have V-type mouth, bound in its two ends side Under the conditions of, then which is carried out by the constraint of 2 radial direction of end plate, complete reliable fixation, further, it is to be appreciated that due to two Individual end plate 2 is designed with V-groove, and therefore, V-type blade 1 is directly constrained by two end plates 2 in the axial direction of impeller head, therefore, V-type leaf The fixing intensity of piece 1 is higher.

As shown in fig. 6, each V-type blade 1 has two work surfaces, lamellar body 1-3 as shown in Figure 6, two work Face can be used alternatingly, so that V-type blade 1 is greatly improved with respect to other kinds of blade service life.

As it was previously stated, impeller body, i.e., the assembly that two end plates 2 and wheel hub are assembled, can be integrative-structure, or The structure that three basic elements of character are assembled, when being releasable connection, V-type blade 1 can be joined by the interference with V-groove 2-3 Close, reliable constraint is realized, i.e., no longer needs extra fixed structure.

In the structure shown in Fig. 5, the bottom land of V-groove 2-3 extends to the outer rim of place end plate 2, i.e., end plate 2 is in V The radial component of type groove 2-3 is open, and in this class formation, impeller body can be overall structure, it is not necessary to just dismount end plate 2 The assembling of V-type blade 1 can be carried out.

Specifically assembling mode is then：V-type blade 1 loads from the left right model face radially along V-groove 2-3 of end plate 2, loads Afterwards, the constraint that V-type blade 1 is subject to is constraining of being provided of the cell wall of end plate 2 and V-groove 2-3, and unique degree of freedom is impeller body The centrifugation side of radial direction.

To the restraining structure of the degree of freedom of side is centrifuged, end plate 2 is arranged on, with regard to restraining structure, is configurable to two kinds of shapes Formula, the first is directly using the construction featuress of itself of V-type blade 1, i.e., which has V-type mouth, use example V-type as shown in Figure 3 1 fixing bolt 4 of blade is pressed on V-type mouth, will not produce impact to the structural strength of V-type blade 1 itself.

Another kind of then be formation hole on V-type blade 1, such as in Fig. 3, V-type blade fixing bolt 4 is solid through realizing behind the hole Fixed, this kind of structure is due to needing in V-type blade 1, and can produce certain impact to the intensity of V-type blade 1.

For the fixed form of the first V-type blade 1, in which, V mouth is pressure-bearing mouth.

And then as shown in figure 3, axially across end plate 21 fixing bolt 4 of V-type blade centripetal side pressure in the pressure-bearing mouth On, form the constraint that side is centrifuged to V-type blade 1 in impeller body.

When the fixed component is using bolt, its can include a part of screw thread, the partial threads be served only for in Fig. 4 One V-type blade fixed bolt hole 2-2 connection, smooth bar part can be connected after being connected to another hole by way of interference Connect.

Additionally, in certain embodiments, V-type blade fixed bolt hole 2-2 can be screwed hole, and the bolt for being used Then it is made up of the polished rod of two sections of screw rods and interlude, smooth bar part is used for compressing V-type blade 1.

In certain embodiments, the tail end of bolt is formed with split pin or has pin-and-hole, with corresponding to bolt tail end Bolt hole formed split pin connection.Specifically, if split pin, then the bolt hole of institute's para-position is and is mutually fitted with split pin The pin-and-hole that answers, is fixed through mouth using natural resiliency.The bolt hole of institute's para-position if cotter-pin hold, is then passed through using split pin Afterwards, cotter-pin hold is inserted into, realizes fixing.

Understood based on aforesaid explanation, the impeller body can adopt integrative-structure in certain embodiments, the one is tied Structure can be integrally machined the structure for forming, or being formed by non-disconnectable connected mode, for example, weld.

And V-type impeller 1 can also adopt integrative-structure, referring to Figure of description 6, in Fig. 6, shown V-type blade 1 is wrapped Include：

Base 1-2, is plate profile structure, and the two ends for mating V-type blade 1 respectively have one, and the groove of the thickness of slab of plate profile structure and V-groove Deep identical；

Lamellar body 1-3, between two base 1-2, base 1-2 is higher by work surface in work surface side, and makes work surface constitute base The bottom land constrained by 1-2 the raised area.

During ball blast, the joint between lamellar body 1-3 and end plate 2 occurs gap, and gap then can produce blade surface, can damage bullet Ball, based on integrative-structure, can effectively eliminate blade surface, and the combination of although base 1-2 and V-groove 2-3 can also produce blade surface, but As position is higher, relatively low with the probability of bullet directly contact.

Additionally, base 1-2 increases overall about binding in the case of lamellar body 1-3 work surface position is not affected further Structure composition surface length, combination stability is more preferable.

Preferably, the head of the V-groove is that round end, correspondingly, the head of V-type blade 1 as shown in Figure 6 is also round Head, cylinder has certain guide function, and bullet damage smaller.

Further, as shown in fig. 6, two afterbodys of the V-type blade 1 are also circular.

For V-groove 2-3, which also determines the setting angle of lamellar body 1-3 work surface, it is preferable that the V-groove 2-3's Angle is 30 ~ 33 degree, and work surface is unsuitable with the angle of the sagittal plane for crossing its centripetal end excessive in other words for the lamellar body 1-3 for making, also not Preferably too small.

In certain embodiments, as shown in figure 3, being additionally provided with pin in space between two adjacent V-types interlobate end plate 3, using the face of cylinder of pin 3, water conservancy diversion is carried out for the bullet to flying out.

Claims (10)

1. a kind of V-type vane impeller device, including the impeller assembly with hub bore and installed in hub bore for providing bullet Point ball device, it is characterised in that the impeller assembly includes：

End plate（2）, with two, two end plates（2）Medial surface is relative, and combines impeller body by wheel hub, wherein, two end plates （2）The formation of respective inner para-position has multiple V-groove, and the centripetal setting of head of V-groove；

V-type blade（1）, the V-type blade is in end plate（2）The two ends of axial direction position and are fixed on two end plates（2）The V-type of upper formation In groove, V-type blade is ball blast work surface in two lateral surface of impeller assembly circumference.

2. V-type vane impeller device according to claim 1, it is characterised in that the bottom land of the V-groove extends to institute In end plate（2）Outer rim, so as to V-type blade（1）Can be along end plate（2）Radial direction load；

End plate（2）It is provided with for fixing V-type blade（1）Fixed component.

3. V-type vane impeller device according to claim 2, it is characterised in that the interior V mouth of the V-type blade be；

Axially across end plate（2）The fixed component centripetal side pressure on the pressure-bearing mouth.

4. V-type vane impeller device according to claim 3, it is characterised in that the fixed component be；

Correspondingly, two end plate（2）On be formed with the bolt hole of position relative with pressure-bearing mouth.

5. V-type vane impeller device according to claim 4, it is characterised in that the tail end of bolt be formed with split pin or Have pin-and-hole, with corresponding to bolt tail end bolt hole formed split pin connection.

6. according to the arbitrary described V-type vane impeller device of claim 1-5, it is characterised in that the V-type blade（1）It is integrated Structure, and the V-type blade（1）Including：

Base（1-2）, it is plate profile structure, mates V-type blade（1）Two ends respectively have one, and the thickness of slab of plate profile structure and V-groove Groove depth identical；

Lamellar body（1-3）, between two bases（1-2）Between, base（1-2）Work surface is higher by work surface side, and makes work surface structure Become base（1-2）The bottom land constrained by the raised area.

7. according to the arbitrary described V-type vane impeller device of claim 1-5, it is characterised in that the head of the V-groove is circle Head, correspondingly, V-type blade（1）Head be also round end.

8. V-type vane impeller device according to claim 7, it is characterised in that the V-type blade（1）Two afterbodys It is circular.

9. according to the arbitrary described V-type vane impeller device of claim 1-5, it is characterised in that the angle of the V-groove be 30 ~ 33 degree.

10. according to the arbitrary described V-type vane impeller device of claim 1-5, it is characterised in that the interlobate end of two adjacent V-types Also there is in space between disk an axially arranged pin（3）.