CN201098841Y

CN201098841Y - Pneumatic grinder

Info

Publication number: CN201098841Y
Application number: CNU2007201281633U
Authority: CN
Inventors: 张泽桦
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-20
Filing date: 2007-07-20
Publication date: 2008-08-13
Anticipated expiration: 2017-07-20

Abstract

The utility model discloses a pneumatic muller, which is used for solving the problems that the exhaust is not smooth, the rough air occurs easily thus resulting in lowered rotational speed and reduced torque force of a rotor, and the shock is pricked up under the design of a gas-cell casing-stand exhaust structure used for exhausting on a well-known pneumatic muller. The pneumatic muller comprises a casing, wherein, a gas-cell casing-stand is assembled inside the casing; the gas-cell casing-stand comprises a cylinder body, an upper cover and a lower cover; the rotor and a skidding lever of an eccentric seat are assembled in the gas-cell casing-stand; at least one lateral exhaust vent is also arranged on the upper cover or/and the lower cover; the lateral exhaust vent is composed of a vertical inner hole section and a transverse outer hole section which are mutually communicated; the vertical inner hole section is communicated with a gas-cell inside the gas-cell casing-stand; the transverse outer hole section cuts through the lateral part of the upper cover or/and the lower cover. The pneumatic muller is applied to the gas-cell casing-stands of various pneumatic mullers.

Description

Pneumatic lapper

Technical field

The utility model relates to a kind of pneumatic lapper, the air chamber shell block of particularly a kind of pneumatic lapper inside.

Background technology

In the pneumatic lapper structure, the formation of its operating condition, mainly be to realize by the rotor component in its inner air chamber shell block, the different position of the perisporium of this air chamber shell block is respectively equipped with air admission hole and steam vent, when air pressure is inner from this air admission hole importing air chamber shell block, can drive this rotor, and when this rotor rotates to the predetermined angular stroke, gas then sees through steam vent and discharges, through this gas continue into, the current drainage journey, make rotor constantly be rotated and the eccentric mounting rotation that drives pneumatic lapper produces the vibration effect.

In the described pneumatic lapper working rotor of the epimere process, the smoothness that the power of its torsion depends primarily on exhaust process whether, yet, because the steam vent of known air chamber shell block is only to be opened in its perisporium, and elongated hole only is set generally, so exhaust effect is not good, and the phenomenon that has some setbacks of exhaust, will cause air chamber shell block inner space to produce sinuous flow, and then the rotating speed and the dynamics of reduction rotor, the problem that causes torsion to be difficult to promote, the vibrations when also causing simultaneously the rotor running aggravate and cause the hand gripping to feel quite uncomfortable, influence job morale and efficient, and then influence the usefulness and the quality of whole pneumatic lapper product.

In addition, air tool operation principle, mainly be to drive the movable blade that rotor institute spacer ring is established by its cylinder interior one, the air pressure that is imported into promotes and orders about this drivings rotor generation and rotatablely move, also, further drive tool ends end (establishing bar etc.) rotation running synchronously as abrasive disk, screwdriver head group by this rotation that drives rotor.Because the rotation of this driving rotor is to rely on air pressure to promote blade formation, so as seen, the structural design of this blade is the key factor that directly influence drives rotor rotary torsion size; Yet, take a broad view of present known pneumatic tool structure, its blade that drives rotor is generally the plate pattern that both sides all are burnishing surfaces, for a long time, some changes the difference slightly except marginal contour shape, the structural form of described blade does not have any than great change, and industry promotes the mode of this driving rotor running torsion, is to improve towards other direction research yet; Yet, by as can be known aforementioned, the blade of this driving rotor is the parts that air pressure directly promotes, if can itself be studied improvement at its structure, should be more helpful to promoting the torsion that drives the rotor running, because two sides of present known blade are the burnishing surface form, its windward side is plane, therefore, when promoted by air pressure, because its compression area promptly is the area size on this plane, the strength that causes its air pressure to promote also can't have any lifting, and, when being urged, gas also runs off along the past side direction of the burnishing surface of this blade easily, and this also is one of reason that causes this driving rotor running torsion deficiency.

Therefore, at the existing problem of above-mentioned known pneumatic lapper structure, developing a kind of innovation structure that has more practicality, is the ardent hope of consumer institute, also is target and the direction that the industry practitioner makes great efforts to research and develop breakthrough.

The utility model content

The utility model provides a kind of pneumatic lapper, and this pneumatic lapper can effectively increase the capacity of air chamber shell block, and then reduces the sinuous flow of air chamber shell block inner space really, makes exhaust process more smooth and easy, thereby promotes the rotating speed and the dynamics of rotor.

In order to achieve the above object, the utility model pneumatic lapper, it comprises casing, the inner group of described casing is provided with an air chamber shell block, described air chamber shell block comprises a stack shell and loam cake, lower cover, and group is provided with the brake bar of a rotor and eccentric mounting in the air chamber shell block, and described rotor has the insertion slot that spacer ring is established, group is provided with the blade that can slide in the insertion slot in insertion slot, and described blade has predetermined limit shape and thickness and defines one group and establish limit, an outer side edges and two face that keeps out the wind; Described stack shell is provided with the inlet and outlet hole and communicates with the inner set air chamber of air chamber shell block; Described loam cake is or/and lower cover also is provided with at least one lateral row pore, described lateral row pore by be interconnected upright to the endoporus section and laterally the hole section form, described standing communicates to the air chamber of endoporus section with air chamber shell block inside, and described laterally outer hole section passes this loam cake or/and the side position of lower cover.

The utility model by at the loam cake of casing inner plenum shell block or/and under cover and set up the lateral row pore, to remedy the deficiency of existing pneumatic lapper steam vent capacity, seeing through described lateral row pore can effectively increase the capacity of air chamber shell block, and then reduce the sinuous flow of air chamber shell block inner space really, make exhaust process more smooth and easy, advance to promote the rotating speed and the dynamics of rotor, and effectively reduce vibrations and can allow use gripping sense more comfortable, reach the practical improvement that significantly promotes torsion and pneumatic lapper product usefulness and quality.

Description of drawings

Fig. 1 is the exploded perspective view of the utility model pneumatic lapper preferred embodiment;

Fig. 2 is that the cap member of the utility model pneumatic lapper is looked up the angle stereogram;

Fig. 3 is the cutaway view (wherein this volution and corrugated gasket are decomposing state) of the preferred embodiment of the utility model pneumatic lapper;

Fig. 4 is the stream work schematic diagram that the lateral row pore of the utility model pneumatic lapper can reach the auxiliary exhaust effect;

Fig. 5 is the embodiment cutaway view that the upper and lower cover of the utility model pneumatic lapper is equipped with the lateral row pore;

Fig. 6 is the exploded perspective view of another embodiment of lateral row pore construction form of the utility model pneumatic lapper;

Fig. 7 is the cutaway view of another embodiment of lateral row pore construction form of the utility model pneumatic lapper;

Fig. 8 is the exploded perspective view of the another embodiment of lateral row pore construction form of the utility model pneumatic lapper;

Fig. 9 is the cutaway view of the another embodiment of lateral row pore construction form of the utility model pneumatic lapper;

Figure 10 is the lateral row pore construction form exploded perspective view of an embodiment again of the utility model pneumatic lapper;

Figure 11 is the lateral row pore construction form cutaway view of an embodiment again of the utility model pneumatic lapper;

Figure 12 is the local member exploded perspective view of the utility model pneumatic lapper;

Figure 13 is the stereogram of the blade construction preferred embodiment of the utility model pneumatic lapper;

Figure 14 is the stereogram of another embodiment of blade inner fovea part configuration state of the utility model pneumatic lapper;

Figure 15 is the cutaway view of the blade indent position fracture morphology preferred embodiment of the utility model pneumatic lapper;

Figure 16 is the cutaway view of blade indent position another embodiment of fracture morphology of the utility model pneumatic lapper;

Figure 17 is the cutaway view of the another embodiment of blade indent position fracture morphology of the utility model pneumatic lapper;

Figure 18 is that the driving rotor of the utility model pneumatic lapper and vane group are assigned in the floor map in the pneumatic tool air chamber shell block;

Figure 19 is the working state schematic representation that the blade of the utility model pneumatic lapper is provided with the indent position.

The specific embodiment

The utility model provides a kind of pneumatic lapper, be used to solve the air chamber shell block exhaust structure design of known pneumatic lapper exhaust, exist exhaust to have some setbacks, easily produce sinuous flow and reduce the problem of the rotating speed of rotor and torsion and vibrations aggravation, the utility model is elaborated below in conjunction with accompanying drawing.

See also shown in Fig. 1-3 preferred embodiment of the utility model pneumatic lapper; The inner group of the casing 10 of described pneumatic lapper is provided with an air chamber shell block 20 and establishes wherein for 41 groups for the brake bar of a rotor 30 and eccentric mounting 40, and this rotor 30 has insertion slot 301 that spacer ring establishes and establishes for 31 groups for blade and wherein be slidably state; This air chamber shell block 20 comprises a stack shell 21 and loam cake 22, lower cover 23, and this stack shell 21 is provided with air admission hole 211 (as shown in Figure 3) and steam vent 212 (as shown in Figure 1), and this inlet and outlet hole 211,212 all communicates with air chamber shell block 20 inner set air chambers 201; Described loam cake 22 is or/and lower cover 23 also is provided with at least one lateral row pore 50, described lateral row pore 50 has one and upright communicates to the air chamber 201 of endoporus section 51 with air chamber shell block 20 inside, this lateral row pore 50 also tool one horizontal outer hole section 52 passes this loam cake 22 or/and the side position of lower cover 23, described upright to endoporus section 51 with horizontal outside hole section 52 communicate.

Wherein, shown in Fig. 1-4, hole section 52 can be by this loam cake 22 or/and lower cover 23 structures one system be set as type to endoporus section 51 and laterally for described lateral row pore 50 upright, if for example this loam cake 22, lower cover 23 plastic materials, can make this lateral row pore 50 one ejection formations by the design of jetting mold.

Form design by above-mentioned structure, as shown in Figure 4, when the air pressure that is imported into when the rotor 30 in this air chamber shell block 20 orders about and turns to predetermined angular, air-flow W is except can being discharged by stack shell 21 set steam vents 212 (as shown in Figure 1), and can see through described loam cake 22 or/and the set lateral row pore 50 of lower cover 23 (present embodiment only has loam cake 22) is discharged, reach auxiliary exhaust whereby, promote the exhaust smoothness and reduce the effect of sinuous flow phenomenon.

As shown in Figure 5, be equipped with the enforcement illustration of lateral row pore 50 for this loam cake 22 and lower cover 23.

Wherein, as Fig. 6, shown in Figure 7, this loam cake 22 is offered upright to perforation 601 standing to endoporus section 51 with formation lateral row pore 50 or/and lower cover 23 also comprises a liner 60 that is mounted on its inner face by this liner 60; So that this loam cake 22 is or/and the inner face corresponding section of lower cover 23 is provided with the chase 221 that passes the side position, so as to forming the horizontal outer hole section 52 of lateral row pore 50.As Fig. 8, shown in Figure 9, also can offer upright by this liner 60B to perforation 602 standing with formation lateral row pore 50 to endoporus section 51 again; The chase 603 that passes the side position is set in the outside of this liner 60 again to communicate to endoporus section 51 with upright, again can be by this loam cake 22 or/and the inner face of lower cover 23 is posted by liner 60 that the open sides of its chase 603 is covered, whereby to form the horizontal outer hole section 52 of lateral row pore 50.

Wherein, as Figure 10, shown in Figure 11, this loam cake 22 is or/and lower cover 23 also comprises first liner 61 and second liner 62 that is mounted on its inner face, offer upright to perforation 610 standing with formation lateral row pore 50 to endoporus section 51 by this first liner 61, in this second liner 62 the microscler open-work 620 that passes the side position being set again communicates to endoporus section 51 with upright, by this loam cake 22 or/and the inner face of lower cover 23 is posted by this second liner 62 that its microscler open-work is covered, whereby to form the horizontal outer hole section 52 of lateral row pore 50.

Wherein, casing 10 inside of this pneumatic lapper are also organized and are provided with a volution 70, so as to lower cover 23 bottoms that are resisted against air chamber shell block 20, and wherein, also organize between this volution 70 and air chamber shell block 20 lower covers 23 and be provided with a corrugated gasket 80, the wave feature of this corrugated gasket 80 can produce elastic reactance when pressurized, push against effect so as to producing reverse elasticity when these volution 70 packings, make this effect that volution 70 reaches locking, positioning states is more firm.

Again wherein, know clearly as shown in Figure 4, this loam cake 22, lower cover 23 2 or wherein one and air chamber shell block 20 stack shells 21 between also group be provided with dense stopping ring 90 (as rubber ring), described dense stopping ring 90 can be mounted in the set embedding groove 213 of these stack shell 21 end faces and establish state to obtain firm group.

The utility model also all is made as the burnishing surface form at two sides of the blade of known driving rotor, and makes motive force be difficult to promote, and the problem that gas easily runs off along its burnishing surface side direction when being urged is improved design.Know clearly as shown in figure 12, described blade 31 is mounted on the rotor 30 in the default insertion slot 301, each blade 10 can move along with rotor 30 revolves synchronously, and because of with the change telescopic variation of air chamber shell block 21 distances, wherein this blade 31 has predetermined limit shape and thickness and defines one group and establishes limit 311, an outer side edges 312 and two face 313 that keeps out the wind; And wherein, at least one face 313 that keeps out the wind of blade 31 described in the utility model also is provided with indent position 314.

Wherein, as shown in Figure 12 and Figure 13, described indent position 314 can be the form that single quantity is provided with; Also or indent position 314B as shown in figure 14, it is a plurality of structural forms spaced apart.

Wherein, as Figure 13, shown in Figure 15, the group that described indent position 314 can be near blade 31 is established the groove form that limit 311 directions have an oblique guide lug 315, can be set as one away from 316 of another sidewalls of this oblique guide lug 315 in the indent position 314 and stand to (being meant the relative pass with the face of keeping out the wind 313) form.

Fracture morphology as for described indent position can be variform, indent position 314C for example shown in Figure 16, and it is a channel section form; Indent position 314D shown in Figure 17 again, it is an arcs of recesses fracture morphology; Other all can be the fracture morphology of enforcement as V-arrangement, trapezoidal form.

Again wherein, the group of described blade 31 is established limit 311, as shown in figure 13, the recessed edge portion 318 that also is provided with the hypotenuse 317 that is positioned at two corners and is positioned at centre portion, and the purpose of this hypotenuse 317 and recessed edge portion 318 is set, mainly establish between limit 311 and the driving rotor 30 set insertion slots 301 in order to the group that air pressure is imported this blade 31, the effect that outwards protrudes out so as to auxiliary blade 31, establish the design that limit 311 has additional hypotenuse 317 and recessed edge portion 318 by this group, air pressure can be gathered in these recessed edge portion 318 formed spaces and be formed the pressure accumulation effect by smooth and easy the piercing of this hypotenuse 317, the pushing tow blade 31 so outward, make the outer side edges 312 of blade 31 can be closely against stack shell 21 inwalls of air chamber shell block 20, reach preferable air-tightness, significantly subtract and fall gas leak phenomenon, and then can further promote the torsion of this driving rotor 30.

Form design by above-mentioned structure, as shown in figure 18, when promoting blade 10 when importing air pressure in the air tool air chamber shell block 20, can make driving rotor 30 produce rotatablely moves, this operation principle and structure are known configurations, promptly do not give unnecessary details, and the utility model is mainly by setting up described indent position 314, because these indent position 314 formed curved areas greater than the burnishing surface of known blade, so as to increasing the keep out the wind compression area of face 313 of blade 31, can promote blade 31 and drive the strength that drives rotors 30 and promote the advantage that drives rotor 30 torsion; And further as shown in figure 19, when air pressure W pushed the face 313 that keeps out the wind of this blade 31, this indent position 314 can produce the effect that gathering is to a certain degree contained to gas, therefore more can significantly reduce the situation that gas runs off toward side direction.

The effect that the utility model is promoted is as follows:

Pneumatic lapper of the present utility model, it is mainly by on being somebody's turn to do, lower cover two or an innovation unique design that has additional the lateral row pore wherein, so as to remedying the deficiency of existing pneumatic lapper air chamber shell block steam vent capacity, also promptly see through the capacity that described lateral row pore can effectively increase the air chamber shell block, and then can reduce the sinuous flow phenomenon of air chamber shell block inner space really, make exhaust process more smooth and easy, advance to promote the rotating speed and the dynamics of rotor, and effectively reduce the vibrations in rotor when running and can allow and use that to grip sense more comfortable, reach the practical improvement that significantly promotes torsion and pneumatic lapper product usefulness and quality.

Have additional the innovation unique design at indent position by the face of keeping out the wind of this rotor blade, increase the keep out the wind compression area of face of blade, drive the strength that drives rotor, and then reach and promote the practical improvement that drives rotor torsion to promote blade by this indent position; And setting by this indent position, when air pressure pushes the face that keeps out the wind of this blade, therefore this indent position can more can significantly reduce gas toward the situation that side direction runs off to gas generation gathering containment role to a certain degree, really can make the torsion that the driving rotor turns round significantly promote.

The new effect that the utility model produces is as follows:

Pneumatic lapper of the present utility model, also be provided with the structure of corrugated gasket by group between inner set volution of this casing and the air chamber shell block lower cover, can utilize the wave feature of this corrugated gasket when pressurized, can produce the characteristic of elastic reactance, push against effect so as to producing reverse elasticity when this volution packing, reach whereby and prevent that effectively volution from getting loose, making air chamber shell block location firm more and reach and prevent the practical improvement that leaks gas really.

Again, be provided with the structural design of dense stopping ring by group between this loam cake, lower cover and the stack shell, can further strengthen the airtight conditions of combination part between this stack shell and the upper and lower cover, utilize the upper and lower dense stopping ring of this rubber-like to make stack shell and loam cake, lower cover organize mutually by reaching a kind of rubber-like closed state between the face, even this stack shell and upper and lower cover are organized when producing loosening slightly phenomenon between the face mutually, still can be kept airtight conditions by described dense stopping ring.

The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement, all should be encompassed in protection scope of the present invention in.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.

Claims

1. pneumatic lapper, comprise casing, the inner group of described casing is provided with an air chamber shell block, described air chamber shell block comprises a stack shell and loam cake, lower cover, group is provided with the brake bar of a rotor and eccentric mounting in the air chamber shell block, described rotor has the insertion slot that spacer ring is established, and group is provided with the blade that can slide in the insertion slot in insertion slot, and described blade has predetermined limit shape and thickness and defines one group and establish limit, an outer side edges and two face that keeps out the wind; Described stack shell is provided with the inlet and outlet hole and communicates with the inner set air chamber of air chamber shell block; It is characterized in that: described loam cake is or/and lower cover also is provided with at least one lateral row pore, described lateral row pore by be interconnected upright to the endoporus section and laterally the hole section form, described standing communicates to the air chamber of endoporus section with air chamber shell block inside, and described laterally outer hole section passes this loam cake or/and the side position of lower cover.

2. pneumatic lapper according to claim 1 is characterized in that: the upright of described lateral row pore passes through this loam cake or/and the lower cover structure is one-body molded to endoporus section and laterally outer hole section.

3. pneumatic lapper according to claim 1 is characterized in that: described loam cake is or/and lower cover also comprises a liner that is mounted on its inner face, and liner is offered upright standing to the endoporus section to perforation formation lateral row pore; Described loam cake forms the horizontal outer hole section of lateral row pore or/and the inner face corresponding section of lower cover is provided with the chase that passes the side position.

4. pneumatic lapper according to claim 3 is characterized in that: described liner is offered upright standing to the endoporus section to perforation formation lateral row pore; The outside of described liner is provided with the chase that passes the side position and communicates to the endoporus section with upright, and described loam cake covers its chase open sides or/and the inner face of lower cover is posted by liner, forms the horizontal outer hole section of lateral row pore.

5. pneumatic lapper according to claim 1, it is characterized in that: described loam cake is or/and lower cover also comprises first liner and second liner that is mounted on its inner face, described first liner is offered upright standing to the endoporus section to perforation formation lateral row pore, the microscler open-work that the described second liner setting passes the side position communicates to the endoporus section with upright, described loam cake covers its microscler open-work or/and the inner face of lower cover is posted by this second liner, forms the horizontal outer hole section of lateral row pore.

6. pneumatic lapper according to claim 1 is characterized in that: the inner group of the casing of described pneumatic lapper is provided with a volution, is resisted against the lower cover bottom of air chamber shell block, and wherein, also organizes between this volution and the air chamber shell block lower cover and be provided with a corrugated gasket.

7. pneumatic lapper according to claim 1 is characterized in that: at least one face that keeps out the wind of the blade of described rotor also is provided with the indent position.

8. pneumatic lapper according to claim 7 is characterized in that: the described blade set indent of the face position of keeping out the wind is single quantity setting or a plurality of form spaced apart.

9. pneumatic lapper according to claim 7 is characterized in that: described blade keeps out the wind the set indent of face position for establishing the groove form that edge direction has an oblique guide lug near the group of blade.

10. pneumatic lapper according to claim 7 is characterized in that: the keep out the wind section at the set indent of face position of described blade can be U-shaped, V-arrangement, arcs of recesses, trapezoidal form.

11. pneumatic lapper according to claim 7 is characterized in that: the group of described blade is established the recessed edge portion that the limit also is provided with the hypotenuse that is positioned at two corners and is positioned at centre portion.

12. pneumatic lapper according to claim 7 is characterized in that: described loam cake, lower cover two or wherein one and air chamber shell block stack shell between also group be provided with dense stopping ring.