CN2567016Y

CN2567016Y - Saw blade

Info

Publication number: CN2567016Y
Application number: CN02207918U
Authority: CN
Inventors: 弗朗索瓦·基亚内塞; 达席尔瓦·卡鲁阿尔霍·鲁伊; 埃里克·扬科夫斯基
Original assignee: SAINT-GOBING GRINDING MATERIAL Inc
Current assignee: SAINT-GOBING GRINDING MATERIAL Inc
Priority date: 2001-03-20
Filing date: 2002-03-19
Publication date: 2003-08-20
Anticipated expiration: 2012-03-19
Also published as: DE20104844U1; ES1051567Y; ES1051567U; KR200301938Y1; JP3088724U

Abstract

The utility model relates to a saw bit. The saw bit comprises a circular main body provided with a centre hole. The saw bit can be arranged on a rotary shaft through the centre hole, the periphery of the circular main body is provided with a segment sheet adhered with abrasive grains, and the main body further comprises at least one gullet which is extended from the periphery to the hole, wherein the adjacent parts of each gullet are unparallel, and each gullet points to the direction that the saw bit is about to rotate by the arrangement of corresponding points of the parts.

Description

Saw blade

Technical field

The utility model relates to a kind of saw blade, particularly, relates to a kind of saw blade that comprises a circular body, and this circular body is provided with a centre bore, and this saw blade can be installed on the rotating driveshaft by described centre bore.This saw blade is being provided with cutting tool on the periphery of circular body, described cutting tool adopts the nodal plate form that is stained with abrasive particle.This saw blade further is provided with one or more gullets, and extend from circumferential its centre bore of saw blade described gullet.Each gullet is arranged such that it is from extending out in a part that is stained with the saw blade circumference between the nodal plate of abrasive particle.

Background technology

Saw blade of the present utility model is particularly useful in the dried cutting of a large amount of construction materials such as concrete, brick, asphalt road (broken stone road), cinder block, pavement slab, granite etc.Compare with saw blade of the prior art, this saw blade has the performance of enhancing, especially be improved on the easy degree of cutting speed and cutting, and the life-span of saw blade is enhanced.

Summary of the invention

According to an aspect of the present utility model, a kind of saw blade is provided, this saw blade comprises a circular body, this circular body has saw blade and can therefrom pass and be installed to main centre bore on the rotating driveshaft, with the nodal plate that is stained with abrasive particle that is positioned on the main body circumference, this main body further comprises the gullet that at least one extends from its circumferential described hole, this saw blade is characterised in that, the neighbouring part of gullet is not parallel, and the layout of the point that is equal on these parts makes the gullet demonstrate the direction that saw blade will rotate.

Preferably, this saw blade comprises a plurality of gullets, and these gullets can be distributed on the saw blade symmetrically.Preferably has at least one nodal plate thereon on the main body circumference between the adjacent gullet.This saw blade may further include at least one groove, and each groove preferably with the main body circumference between the adjacent gullet separately.In a preferred embodiment, be provided with the groove of a plurality of symmetrical distributions, each groove all with the main body circumference between the adjacent gullet separately.

Each groove can be arranged such that the most external rotation symmetry of each groove.

Described gullet and groove can be scattered in has position one or more nodal plates thereon on the main body circumference that makes between adjacent gullet and/or the groove.

Described nodal plate preferably is laser-welded on the main body.

This main body can be made by steel, for example carbon steel.

Abrasive particle preferably includes natural or synthetic diamond, tungsten carbide, cubic boron nitride etc.Described abrasive particle is carried on one by on the matrix of relatively making than soft material, and described softer material relatively can be metal, alloy, animi resin (cured resin) etc.

Described nodal plate is preferably trapezoidal, is preferably formed a narrow groove that can have parallel sides between the adjacent nodal plate, and can determines a plurality of grooves.

In a preferred embodiment, align with a groove on the circumference of main body in each gullet, so that form a continuous passage.And each groove can align with a groove on the circumference of main body.

Each groove can have one at the upwardly extending directional component in the side that saw blade will rotate.

This saw blade can have the diameter that is 450mm to the maximum, and each nodal plate is at the height that can have 15mm in the radial direction.

The trapezoidal shape that has been found that nodal plate can make saw blade carry out cutting action smoothly in the mode that is similar to the blade with continuous boundary.And then the shape of each gullet and position are used to strengthen from flowing of the next smear metal of cut point and flowing of cooling fluid, and reduce the internal stress of main body.

According to another aspect of the present utility model, a kind of method that is used for dried cutting object is provided, it comprises the aforementioned saw blade of rotation and it is advanced with respect to object.This saw blade can be used to for example cut or form groove on stone, concrete, the pitch etc. at hard object.

Description of drawings

In order to understand the utility model better,, be described by way of example referring now to accompanying drawing.

Fig. 1 is the side view according to the part of saw blade of the present utility model;

Fig. 2 is the side view according to a saw blade of the present utility model;

Fig. 3 is the saw blade according to second embodiment of the present utility model;

Fig. 4 is the saw blade according to the 3rd embodiment of the present utility model;

Fig. 5 is the saw blade according to the 4th embodiment of the present utility model;

Fig. 6 is the saw blade according to the 5th embodiment of the present utility model.

The specific embodiment

In first example, with reference to figure 1, expressed the part of a saw blade 1, this saw blade 1 comprises a circular body 5, around circular body 5 nodal plate 6 is installed, and is stained with abrasive particle on the nodal plate 6.As can be seen, adjacent nodal plate 6 is separated, so that determine a groove 7 between them.Main body 1 further is provided with a sagittate gullet 8, and is provided with an augmenting portion 9 on its radially innermost point, and this augmenting portion 9 is used for strengthening the intensity of end, gullet and prevents to form crackle in main body 1.

The direction that saw blade 1 will rotate has been pointed out in gullet 8, and the more important thing is, gives the characteristic that saw blade 1 more effectively cuts when cutting stone, cement, brick etc.

Fig. 2 has expressed whole saw blade 10.As shown in the figure, saw blade 10 comprises the main body 11 of a circular, and this main body 11 has a centre bore 12, and main body 11 is installed on the rotatable driving shaft by this centre bore 12.Be provided with a plurality of trapezoidal nodal plates of being made by grinding-material 16 around the circumference of main body 11, described grinding-material is for example for being carried on will synthesize or natural diamond, tungsten carbide, cubic boron nitride etc. on the matrix of being made by resin, metal, alloy etc.

Determine a groove 17 between the opposite flank of adjacent nodal plate 16.Main body 16 also comprises gullet 18 and a plurality of radial groove 19 that a plurality of cardinal principles radially are provided with, and each groove 19 ends at the part 13 of an expansion.

When nodal plate 16 was trapezoidal, the groove of determining between the opposite flank of adjacent nodal plate 17 had parallel side.No matter the diameter of saw blade is much, and described side all is parallel.Compare with the saw blade that is provided with non-trapezoidal nodal plate, this has the effect that reduces the gap size between the adjacent nodal plate 16.And, compare with saw blade with non-trapezoidal nodal plate, when cutting, can reduce to impact.In fact, the motion of saw blade 10 in cutting approaches a blade with continuous boundary.

Saw blade 10 will travel direction be pointed out by arrow A.

Saw blade shown in Figure 2 has 32 nodal plates, eight gullets and eight grooves 19, and wherein each is all spaced apart around main body 11 equidistantly.The diameter of blade 10 is 230mm, and the height of each nodal plate 16 is 12mm.The size of saw blade 10 and structure can allow to cut very apace, and very long saw life can be provided.For example, the saw blade with 32 pipe nipple sheets (as shown in Figure 2) is compared with the saw blade with 16 meropodium sheets (as shown in Figure 3), shows fast 15% cutting characteristic.And then existing saw blade has usually and highly is the nodal plate of 7mm.Saw blade 10 among Fig. 2 has and highly is the nodal plate of 12mm, has been found that with the saw blade with less nodal plate and compares, and it can improve 50% with the life-span of saw blade 10.

Preferably, by laser weld nodal plate 16 is installed on the circumference of main body 11.Although other known method for example soldering and directly sintering also can be used, have been found that laser weld can guarantee that nodal plate 16 is installed on the main body 11 best.Nodal plate 16 can or can not be the setting of alternating axis shape with respect to main body 11, and promptly the plane with respect to the main body 11 of saw blade 10 replaces displacement, and is next recessed with respect to paper so that nodal plate is positioned at the protrusion side of paper.Preferably, nodal plate 16 is the setting of alternating axis shape, so that in use reduce side friction as far as possible.The nodal plate that is the setting of alternating axis shape makes that also narrower nodal plate can be used to produce desirable cutting.

In use, saw blade 10 is closely contacted with object to be cut along the rotation of the direction shown in the arrow A and its circumference.When saw blade rotated at a high speed, the nodal plate 16 of rapid movement utilized the effect cutting object of the abrasive particle that nodal plate 16 comprised.The existence of gullet 18 and groove 19 makes the particle be ground object transport out from cutting point, and prevent abrasive particle at the cutting point place by interlock.And then gullet 18 allows cooling fluid to flow to cutting point.Under the situation of doing cutting, cooling fluid is an air.

The shape that has been found that gullet 18 makes 11 pairs of stones of saw blade, brick, concrete and other construction material have excellent cutting characteristic.Simultaneously, we do not wish to be limited to by any specific theory, and believe that better cutting ability is to be obtained owing to more effective circulation of comparing cooling fluid with straight radial cut interdental space and particle more effectively transport out from cutting point.Be appreciated that owing to, can cause the mobile better distribution of fluid when the variation of the fluid direction that 18 fluids when moving are taked along the gullet.

Find that also nodal plate quantity increases, then the excision speed of object to be cut also increases thereupon.

Fig. 3 represents a saw blade 20 with nodal plate 28 bigger than the nodal plate of aforementioned saw blade.As previously mentioned, adopt eight gullets 28 and eight grooves 29, its main distinction is to have only 16 nodal plates 26.Therefore, each groove between adjacent nodal plate 26 or gap 27 end at a gullet 28 or groove 29.

Fig. 4 represents another embodiment, and wherein, saw blade 30 is provided with 32 nodal plates 36 on the circumference of main body 31.But, as shown in Figure 2, the gullet 38 and the groove 39 of half number only arranged here.Can see between each gullet 38 and the groove 39 that is adjacent, four nodal plates 36 being arranged.

Fig. 5 and 6 represents saw blade 41 and 51 respectively, these saw blades except have with, other is the same with the aforementioned saw blade shown in Fig. 2 and 4.As can be seen, each groove 49 and 59 is tilted, so that their direction of rotation to saw blade 40 and 50 tilt.Can believe, this from radially being set to the variation that is obliquely installed, by changing or change the type of flow of fluid, also help working angles along it.

Simultaneously, although expressed certain embodiments, the combination that will be understood that any feature that falls into back appending claims scope all the defending party to the application predict, and fallen into scope of the present utility model.For example, the embodiment of Fig. 3 can have inclined notches formed 29, rather than the groove that radially is provided with as shown in the figure.And can adopt the nodal plate of varying number.Perhaps, the nodal plate number between the gullet also can change.

Simultaneously, although shown in and described gullet be sagittate.But will be understood that they also can fly in circles and mark or banana-shaped, that is, this arrowhead form can save, so that make the gullet have less angle profile.

Simultaneously, saw blade of the present utility model is used in particular for the dried cutting of material, but they also can be used to wet cutting, that is, and and the cutting of employing cutting fluid as be known in the art.

Claims

1, a kind of saw blade, it comprises a circular body, this circular body has a centre bore, saw blade can be installed on the rotating shaft by this centre bore, the circumference of this circular body is provided with the nodal plate that is stained with abrasive particle, and this main body comprises that further at least one from the gullet that extend in its circumferential described hole, is characterized in that, the adjacent part of each gullet is uneven, and the layout of the corresponding point of these parts makes each gullet point to the direction that saw blade will rotate.

2, saw blade as claimed in claim 1 is characterized in that, comprises a plurality of with respect to saw blade symmetrical distribution gullet.

3, saw blade as claimed in claim 2 is characterized in that, at least one nodal plate is on each circumference to the main body between the adjacent gullet.

4, as claim 1,2 or 3 described saw blades, it is characterized in that, further comprise at least one groove.

5, saw blade as claimed in claim 4 is characterized in that, each groove separates the circumference of main body between adjacent gullet.

6, as claim 4 or 5 described saw blades, it is characterized in that, be provided with the groove of a plurality of symmetrical distributions, each groove separates the circumference of the main body between the adjacent gullet.

As claim 4,5 or 6 described saw blades, it is characterized in that 7, the layout of each groove makes its outermost radial outside partial rotation symmetry with respect to each gullet.

8, as any one described saw blade in the claim 4 to 7, it is characterized in that, be provided with a plurality of grooves, the distribution of each groove makes the main body circumference between the adjacent grooves be provided with one or more nodal plates.

9, the described saw blade of any one claim as described above is characterized in that, is provided with a plurality of gullets, and the distribution of each gullet makes to have one or more nodal plates on the main body circumference between the adjacent gullet.

10, the described saw blade of any one claim as described above is characterized in that described nodal plate is laser-welded on the described main body.

11, the described saw blade of any one claim as described above is characterized in that described main body comprises steel, for example carbon steel.

12, the described saw blade of any one claim as described above is characterized in that, described abrasive particle is made of one or more natural or diamond synthesis, tungsten carbide, cubic boron nitride.

13, the described saw blade of any one claim as described above is characterized in that, described abrasive particle is carried on by on the matrix of making than soft material relatively.

14, saw blade as claimed in claim 13 is characterized in that, described softer material relatively is metal, alloy or animi resin.

15, the described saw blade of any one claim as described above is characterized in that described nodal plate is trapezoidal.

16, saw blade as claimed in claim 15 is characterized in that, forms a narrow groove between the adjacent nodal plate.

17, saw blade as claimed in claim 16 is characterized in that, narrow groove has parallel side.

As claim 15 or 16 described saw blades, it is characterized in that 18, each saw blade aligns with a groove on the circumference of main body, so that form a continuous passage.

As claim 15,16 or 17 described saw blades, it is characterized in that 19, each groove aligns with a groove on the circumference of main body.

20, the described saw blade of any one claim as described above it is characterized in that its diameter is 450mm to the maximum, and each saw blade has the height that is 15mm to the maximum diametrically.