CN103538153A - Power head - Google Patents
Power head Download PDFInfo
- Publication number
- CN103538153A CN103538153A CN201310288804.1A CN201310288804A CN103538153A CN 103538153 A CN103538153 A CN 103538153A CN 201310288804 A CN201310288804 A CN 201310288804A CN 103538153 A CN103538153 A CN 103538153A
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- CN
- China
- Prior art keywords
- cutting element
- unit head
- drill bushing
- layer
- surface segment
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/75—Stone, rock or concrete
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a power head (1), especially a hammer-type power head used for drilling and cutting reinforced concrete or other reinforced material or rock material in a rotatable punching manner, or a rotating power head, or a hole saw. The power head comprises a clamping handle (2), a drilling sleeve (3) provided with a bottom part (4), and a cutting element. The cutting element is disposed on the drilling sleeve (3), and is protruded from the drilling sleeve (3). A cutting element (5) or a cutting element (5)used for accommodating the cutting element (5). The cutting element (5)is formed by combining two welding spots (P), and the cutting element (5)is welded on one surface segment of one surface of the drilling sleeve (3) in a locked manner.
Description
Technical field
The present invention relates to a kind of unit head, especially one for the hammer unit head with rotary impact mode drilling armored concrete or other reinforcement material or rock material or a rotary power head or a hole saw.The invention still further relates to a kind of method for the manufacture of unit head.
Background technology
By the known a kind of unit head of DE19740277A1, it comprises a clamping handle, a drill bushing and at least one cutting element, and wherein, cutting element is arranged on drill bushing and the outstanding drill bushing that surpasses of cutting element.
Summary of the invention
Task of the present invention is to provide a kind of unit head, and it can be simply in process technology and especially personalizedly manufactures and a small amount of hard material enough formation cutting element just wherein.
This task solves by the present invention.Provide in the following description favourable and suitable expanded configuration of the present invention.
According to unit head of the present invention, this cutting element is at least one cutting element that is constructed to lay in cutting element in other words, wherein, cutting element is combined by least two solder joints, wherein, cutting element material is welded in a surperficial surface segment of drill bushing in locking manner.Need on the surface of unit head, for cutting element, not offer a recess that is for example otch or boring form thus comes shape to keep in locking manner cutting element.But can be in the situation that avoid for the required shape of shear transfer is sealed, cutting element being connected with the surface of drill bushing.Therefore, core of the present invention is cutting element and surperficial being connected of drill bushing, wherein, do not need the metal cutting before unit head to process and provide whole volume that the cutting element that receives possibility and be connected with drill bushing preferably usings it as acting on the cutting element on material to be processed and not being that major part is moved in drill bushing for cutting element.In addition by according to the cutting element of laying of the present invention by the forming of single solder joint, need to be for the manufacture of the former of cutting element, thus single cutting element in the situation that there is no a process technology morely expend personalizable and design.
According to the present invention's regulation, the cutting element of laying is given prominence to and is surpassed described drill bushing and/or radially inwardly give prominence to the circumference limiting over an internal valve by described drill bushing and/or give prominence to radially outwardly and surpass a circumference limiting by shell surface about the longitudinal axis of described unit head about the longitudinal axis of described unit head in the direction of feed of described unit head.Can just in time as the cutting element embedding in use, make thus unit head adapt to all requirements and for example form in this wise the cutting element of laying, thereby it give prominence to over end face and radially outward give prominence to the shell surface that surpasses drill bushing in direction of feed.
According to the present invention regulation, only in the direction of feed of described unit head, (x is upper outstanding over described drill bushing for the cutting element of laying.This planform is especially provided for drill bushing, and this state is only cut the degree of depth for the bradawl of especially maximum 7cm and used.
The present invention also stipulates, a surperficial surface segment of described drill bushing is especially configured to flat surface segment or is especially configured to recessed curved surface segment or is especially configured to protruding curved surface segment or is especially configured to the surface segment of the outside inclination declining against direction of feed diametrically or is especially configured to the surface segment of the inside inclination declining against direction of feed diametrically, the cutting element of laying described in welding in this surface segment.The landforms of the surface segment that cutting element that form, that lay applies with it by single solder joint are independently had with the connection of carrying of drill bushing and formed a toothed drill bushing together with drill bushings by its connection sealed with the material of drill bushing.Unwanted thus: the surface segment that is provided for occupying by cutting element on drill bushing surface is distinguishingly formed or pretreatment.
The present invention also stipulates, the described cutting element of laying has and is more than or equal to HRC60 and the especially hardness in the scope of HRC60 to HRC80, wherein, the cutting element of laying described in especially surpasses 50% and preferably surpass 90% and made or especially by metal and hard material, made by metal, especially noble metal.The cutting element of laying is like this aspect its characteristic and competitive with respect to the cutting element of traditional hard alloy cutting body that is constructed to embedding aspect its material cost.
According to the present invention, stipulate, the described cutting element of laying consists of a plurality of n in other words layers, wherein, at least n-1 layer comprises respectively a plurality of solder joints, wherein, the quantity of the solder joint of every layer especially remains unchanged or especially in turn reduces or especially at least one section, reduce and remain unchanged at least one other section towards the superiors from the orlop of the Surface Contact with drill bushing.By such structure, allow cutting body to require and be for example extruded and solid ground or slenderly implement its in shape personalized adapting to.
The regulation according to the present invention, the cutting element of described unit head have different cutting element shapes and especially a plurality of different odontoid especially with before and after the repetition period in succession.What can realize thus is, set special task completely to each cutting element, wherein, different cutting elements is not only differently shaped according to the present invention, and gives prominence to some extent over the surface of drill bushing and therefore contact with material to be processed in a different manner.
According to the present invention regulation, described unit head comprises a spiral, and described spiral is arranged on the shell surface of described drill bushing and especially repeatedly around described drill bushing.Be conducive to thus from boring output drilling.
The present invention also stipulates, at least one in described cutting element is as the cutting element embedding, especially form as the hard alloy cutting element embedding, and it is fixed in an otch being configured in described unit head.By having this unit head that the cutting element of mixing installs additional, also can give their such characteristics, these characteristics only can be obtained by the cutting element embedding, as it is for example obtaining in to the extreme requirement of the hardness of cutting element.
The present invention also stipulates, the surperficial surface segment of described drill bushing is constructed to recess, especially otch or boring, the cutting element of laying described in welding in described surface segment, wherein, described in the cutting element laid is especially outstanding surpasses described recess.For example can set the cutting element of laying to drill bushing thus, this drill bushing itself is configured to embed for the cutting element embedding.
The present invention also stipulates, described unit head comprises a plate armour being connected on described at least one cutting element, wherein, described plate armour comprises at least one layer, wherein, described layer consists of a plurality of solder joints that are arranged side by side, wherein, the thickness of a layer is that about 0.5mm to 1.5mm and described plate armour especially comprise two layers and preferred three layers, wherein, described plate armour has the especially hardness in the scope of HRC60 to HRC80, wherein, described plate armour is especially made by steel alloy or especially by precious metal alloys, is made or especially by steel alloy and hard material, made.By such plate armour---it forms a protection coating from cutting element---can make unit head especially a kind of material life-span during drilling longer, in this material, when drilling, form the drilling cuttings with extra high corrasion.In this present invention regulation, the distolateral and/or shell surface of drill bushing be provided with such plate armour with the distolateral region being connected.
According to the method for the manufacture of unit head of the present invention, stipulate, in order to form the cutting element of laying, by a welding wire, by front and back welding process in succession, form at least two upper and lower layers stacked, that respectively have a plurality of solder joints that are arranged side by side to make, wherein, nethermost ground floor is welded in a surface segment of described unit head and by each ensuing, higher layer and is welded on corresponding previous layer.Such method can realize the personalized designs of cutting element, and does not need former for this reason and needn't distinguishingly design the surface segment of drill bushing at this.Core of the present invention is to manufacture a unit head with the cutting element of laying, and it is built in the surperficial surface segment of drill bushing with the sealed connection of material step by step.
The present invention also stipulates, with described at least one cutting element adjacently in other words with cutting element at least one apply adjacently a plate armour, described plate armour consists of at least one layer, and described layer consists of a welding wire front and back welding process in succession a plurality of solder joints that are arranged side by side.Can in the circumference that meets arbitrarily area and with morphology, independently set up a protective layer thus, this protective layer is directly connected on cutting element and is transitioned in other words in cutting element and from cutting element, gives prominence in other words.
According to the present invention, with cold metal transfer method in the situation that, carrying out described welding process forms the cutting element of laying and/or forms armoring, wherein, described welding wire is especially controlling steel alloy or especially comprising precious metal alloys or especially made by steel alloy and hard material, wherein, the plate armour that the cutting element being formed after welding process by welding wire is formed after welding process by welding wire in other words has at least hardness of 60HRC.Can manufacture thus and there is personalized tooth portion and/or armoring unit head.
Last the present invention's regulation, described unit head hardens before cutting element and/or plate armour in welding at least one thermmohardening process.The ability to work of unit head be can further improve thus, and by processing method, cutting element and armoring quality do not affected.
In the sense of the present invention, the surface of drill bushing is not only interpreted as that a drill bushing pointing in direction of feed is distolateral, and is interpreted as shell surface of drill bushing and an internal valve of drill bushing.
Accompanying drawing explanation
Other details of the present invention is in the accompanying drawings according to the embodiment explanation schematically illustrating.
Illustrate for this reason:
Fig. 1 a: have cutting element and spiral according to the diagrammatic side view of the first unit head of the present invention;
Fig. 1 b-1d: at other view of unit head shown in Fig. 1 a;
Fig. 2 a, 2b: the signal details of the cutting element of laying of the first unit head;
Fig. 2 c: the schematic diagram of the second unit head;
Fig. 2 d, 2e: the schematic diagram of a part of the 3rd unit head;
Fig. 2 f: the schematic diagram of a part of the 4th unit head;
Fig. 3 a: according to the diagrammatic side view of the 5th unit head of the cutting element with the cutting element that is placed on distolateral and shell surface and embedding of the present invention;
Fig. 3 b, 3c: at other view of the unit head shown in Fig. 3 a;
Fig. 4 a: have the cutting element that is placed on distolateral and shell surface according to the diagrammatic side view of the 6th unit head of the present invention;
Fig. 4 b, 4c: at other view of the unit head shown in Fig. 4 a;
Fig. 5 a: have the cutting element of the cutting element that is placed on distolateral and embedding and spiral according to the diagrammatic side view of the 7th unit head of the present invention;
Fig. 5 b, 5c: at other view of the unit head shown in Fig. 5 a;
Fig. 6 a: have the cutting element that is placed on distolateral and shell surface and embedding cutting element according to the diagrammatic side view of the 8th unit head of the present invention;
Fig. 6 b: at other view of the unit head shown in Fig. 6 a;
Fig. 7: have the cutting element that is placed on distolateral and embedding cutting element according to the diagrammatic side view of the 9th unit head of the present invention;
Fig. 8: have be placed in the cutting element on distolateral and do not have spiral according to the diagrammatic side view of the tenth unit head of the present invention.
The specific embodiment
Side view with signal in Fig. 1 a illustrates according to the first unit head 1 of the present invention hollow unit head in other words.Unit head 1 comprises that a clamping handle 2, one have the drill bushing 3 of drill bushing bottom 4 and the cutting element 5 of laying.Clamping handle 2 is connected with the drill bushing bottom 4 of cup-shaped drill bushing 3.Cutting element 5 be arranged on drill bushing 3 annular distolateral 6 on.Unit head 1 also optionally comprises a pilot bit 7, and it is arranged on the extended line of clamping handle 2 and with drill bushing bottom 4 and is connected in the longitudinal axis L 1 of unit head 1.In rotating operation, unit head 1 is rotated around its longitudinal axis L 1 by a unshowned machine and also on direction of arrow x, is forced on a material M to be processed at this on direction of rotation w.In service at rotary impact, not only carry out rotation and the feeding on direction of arrow x on direction of rotation w, and the feeding on direction of arrow x additionally with impact mode in other words pulse mode carry out, thereby cutting element 5 is to cut in other words cutting way and to cut and smash in other words mode to pieces and act on material M to be processed with cutter.A spiral 9 is also set on the shell surface 8 of drill bushing 3, and it transports out along direction of arrow x ' unshowned drilling cuttings the in service of unit head 1 from a boring 10.Drill bushing 3 comprises the 4 and drill bushing shells 11 in drill bushing bottom, and wherein, drill bushing shell 11 has distolateral 6, the shell surface 8 of annular and an internal valve 12(also referring to Fig. 1 c).Distolateral 6, the shell surface 8 of annular and internal valve 12 form the surface A of drill bushings 3, and wherein, the cutting element 5 of laying is soldered to the surface segment A5 upper (also referring to Fig. 1 b) of this surface A.
In Fig. 1 b, drill bushing 3 illustrates enlargedly in its distolateral 6 region, wherein, has cancelled the view in the pilot bit shown in Fig. 1 a.In distolateral 6, can see single cutting element 5 again.
By at unit head 1 can be seen in distolateral 6 top view of drill bushing 3 in other words shown in Fig. 1 c, on distolateral 6, be provided with 12 cutting elements 5 altogether, wherein, they are divided into six group 13a-13f respectively with two cutting elements 5.At this, each group 13a-13f has a cutting element 5, and it is the more close longitudinal axis L 1 of another cutting element 5 than same group diametrically.Have to short-range that cutting element 5 of longitudinal axis L 1 and surpass internal valve 12 and extend into thus in the interior chamber 22 of drill bushing 3 towards longitudinal axis L 1 is outstanding.Inwardly outstanding cutting element 5 is responsible in drilling: unit head 1 with respect to a brill core K(who forms in drilling referring to Fig. 1) there is little friction and especially avoid at the internal valve 12 of drill bushing 3 and bore the planar friction between core K.Clamping handle 2 and drill bushing 3 consist of the first material W1 with its drill bushing bottom 4 and the cutting element 5 laid consists of the second material W2, and wherein, the second material W2 is harder than the first material W1.
In Fig. 1 d, be shown enlarged in the cutting element 5 shown in Fig. 1 b.In the zoomed-in view of this cutting element 5, can see, it consists of seven layer S1-S7, and wherein, orlop is distolateral 6 being connected of drill bushing 3 of ground floor S1 and unit head 1 in other words.Each layer of S1-S7 arranges as the concentric round K1-K7 of the longitudinal axis L 5 with respect to cutting element 5, and their tips 14 towards cutting element 5 on its diameter successively reduce.
The basic structure of the cutting element 5 of again laying according to two schematic view illustratings in Fig. 2 a and 2b.They illustrate cutting element 5 with side view with according to the cutaway view of cutting line IIb-IIb.The cutting element 5 of unit head 1 consists of eight layer S1-S8, by them, forms one with respect to the rotational symmetric cutting element 5 of longitudinal axis L 5.The section according to cutting line IIb-IIb of cutting element 5 has been opened the sight line of S7.It is comprised of a lot of solder joint P---as shown at Fig. 2 b---, these solder joints in the actual embodiment of cutting element 5, in the situation that there is no intermediate space, mutually recline and form an atresia layer, on this layer, support to atresia equally again next layer of S8.Orlop S1 is also connected with distolateral 6 of a drill bushing 3 to atresia in actual embodiment.
Side view with the signal of the drill bushing 103 to the second unit head 101 in Fig. 2 c illustrates another cutting element of laying 105.It is upper that this cutting element 105 and the cutting element before are differently arranged on a surface segment A105 of surface A as the cutting element of laying, wherein, surface segment A105 as recess 115 with the formal construction of otch 116 in drill bushing 103.The cutting element 105 of laying comprises five layer S101-S105, and wherein, layer S101 and S102 fill otch 116 and layer S103 to S105 outstanding distolateral 106 of drill bushing 103 that surpasses on direction of feed x.What by such embodiment of a cutting element of laying 105, can realize is, unit head also sets the cutting element of laying, they itself be arranged for cutting element that the cutting element that use to embed lays in other words not only material in locking manner and also shape be connected with drill bushing in locking manner.
A part for the 3rd unit head 201 is shown with three-dimensional view in Fig. 2 d.This part illustrates two cutting elements of laying 205, and they are arranged on distolateral 206 an of drill bushing 203.At this, two cutting elements 205 as vernier, be arranged on distolateral 206 one outstanding on direction of feed x, around projection 217 on.In the cutting element 205 of laying, conventionally do not need for filling the material of otch, compare and can form the cutting element elongating in a circumferential direction by enough identical quantity of material with cutting element traditional, that insert thus, it is in the situation that similarly surpass the operation that distolateral 206 plussage 218 has the large guiding length 219 recording in a circumferential direction and is conducive to thus quiet, the low vibration of unit head 201.
A part of implementing modification of the 3rd unit head 201 is shown with three-dimensional view in Fig. 2 e.This part illustrates again two cutting elements of laying 205, they be arranged on drill bushing 203 distolateral 206 on.At this, two cutting elements 205 as vernier, be arranged on distolateral 206 one outstanding on direction of feed x, around projection 217 on.From different at the first embodiment shown in Fig. 2 d, the plussage 218a of the cutting element 205a on the right is greater than the plussage 218b of the cutting element 205b on the left side.This variation of plussage is not carried out in the following manner simply and especially in the cutting element 205 of laying in the situation that drill bushing 203 has deviation processing to manufacture in other words, welds other layer.
In the part schematically illustrating to the 4th unit head 301 shown in expansion shown in Fig. 2 f.A drill bushing 303 of unit head 301 has a projection of pointing on direction of feed x 326.By two layer S301 and S302 that are welded in projection 326, form a cutting element of laying 305 with cutting face (above) 327 and the scope of freedom (below) 328.
In Fig. 3 a to 3c, with side view, the 5th of unit head 401 is shown and implements modification.For the basic structure of unit head 401 with reference to the description to Fig. 1 a to 1c.From different at the first unit head shown in Fig. 1 a to 1c, the unit head 401 shown in Fig. 3 a to 3c not only an annular distolateral 406 on there is the cutting element 405 of laying, and on its shell surface 408 of drill bushing 403, thering are a lot of other cutting elements 420, they are the even running in dark boring in particular for unit head 401.This also arranges the cutting element 421 of embedding on external distolateral 406 between the cutting element 405 of laying in otch 425, they in being configured to the unit head 401 of dynamic impact problem head mainly with cutting mode and guidance mode effect, on the contrary, cutting element 405 distolateral, that lay mainly acts on material to be processed with impact mode and the mode of smashing to pieces.
In Fig. 4 a to 4c, with side view, the 6th of a unit head 501 is shown and implements modification.For the basic structure of unit head 501 with reference to the description to Fig. 1 a to 1c.From different at the first unit head shown in Fig. 1 a to 1c, the unit head 501 shown in Fig. 4 a to 4c not only an annular distolateral 506 on there is the cutting element 405 of laying, and on its shell surface 508 of drill bushing 503, thering are a lot of other cutting elements 520, they are the even running in dark boring in particular for unit head 501.
In Fig. 5 a to 5c, with side view, the 7th of a unit head 601 is shown and implements modification.For the basic structure of unit head 601 with reference to the description to Fig. 1 a to 1c.From different at the first unit head shown in Fig. 1 a to 1c, the cutting element 621 of embedding is also set between the cutting element 605 of laying on distolateral 606 of drill bushing 603, they in being configured to the unit head 601 of dynamic impact problem head mainly with cutting mode and guidance mode effect.Same as the unit head as shown at Fig. 1 a to 1c, a shell surface 608 consists of spiral 609.
In Fig. 6 a and 6b, with side view, the 8th of a unit head 701 is shown and implements modification.For the basic structure of unit head 701 with reference to the description to Fig. 1 a to 1c.From different at the first unit head shown in Fig. 1 a to 1c, the unit head 701 shown in Fig. 6 a and 6b not only an annular distolateral 706 on there is the cutting element 705 of laying, and on its shell surface 708 of drill bushing 703, there are a lot of other cutting elements of laying 720, their even runnings in dark boring and for carrying unshowned drilling cuttings against direction of feed x direction x ' is upper in particular for unit head 701, form sliding members and director element thus.The cutting element 721 of embedding is also set between the cutting element 705 of also laying on distolateral 706, they in being configured to the unit head 701 of dynamic impact problem head mainly with cutting mode and guidance mode effect, on the contrary, cutting element 705 distolateral, that lay mainly acts on material to be processed with impact mode and the mode of smashing to pieces.The nethermost cutting element 720---it approaches clamping handle 702 most---around drill bushing 3 is as the maximum mark that pierces the degree of depth arranging.
In Fig. 7, with side view, the 9th of a unit head 801 is shown and implements modification.For the basic structure of unit head 801 with reference to the description to Fig. 1 a to 1c.From different at the first unit head shown in Fig. 1 a to 1c, the cutting element 821 also between the cutting element 805 of laying on distolateral 806 at the unit head 801 shown in Fig. 7 with embedding, they in being configured to the unit head 801 of dynamic impact problem head mainly with cutting mode and guidance mode effect, on the contrary, cutting element 805 distolateral, that lay mainly acts on material to be processed with impact mode and the mode of smashing to pieces.A shell face 808 of drill bushing 803 forms glossily, to manufacture inexpensively unit head 801.
In Fig. 8, with side view, the tenth of a unit head 901 is shown and implements modification.For the basic structure of unit head 901 with reference to the description to Fig. 1 a to 1c.As the first unit head as shown at Fig. 1 a to 1c, at the unit head 901 shown in Fig. 8, on one distolateral 906, only there is the cutting element 905 of laying.With at the unit head shown in Fig. 1 to 1c, a shell face 908 of drill bushing 903 is glossily and without forming spirally, to manufacture inexpensively unit head 901.Distolateral 906 whole faces are provided with plate armour 923, and an armoring layer S901 who is welded by pointwise forms.At this, according to the first enforcement modification regulation, first plate armour is applied on distolateral 906 and next, on armoring 923, cutting element 905 is installed.According to the second enforcement modification regulation, first cutting element 905 is installed, then around existing cutting element 905, form armoring 923.Another implements modification regulation, armoring 923 are not only placed on distolateral 906, and to one of the shell surface 908 of drill bushing 903 with distolateral 906 adjacent armoring at least one layers of annular region 924 and also make thus unit head 901 become wear-resisting especially in this region 924.
Claims (15)
1. unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901), especially one for the hammer unit head with rotary impact mode drilling armored concrete or other reinforcement material or rock material or a rotary power head or a hole saw, comprising:
A clamping handle (2; 102; 202; 302; 402; 502; 602; 702; 802; 902), one has drill bushing bottom (4; 104; 204; 304; 404; 504; 604; 704; 804; 904) drill bushing (3; 103; 203; 303; 403; 503; 603; 703; 803; 903) and at least one cutting element,
Wherein, described cutting element is arranged on described drill bushing (3; 103; 203; 303; 403; 503; 603; 703; 803; 903) upper and outstanding over described drill bushing (3; 103; 203; 303; 403; 503; 603; 703; 803; 903),
It is characterized in that a cutting element (5; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) cutting element (5 in other words; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) cutting element (5 that at least one in is constructed to lay; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720),
Wherein, described cutting element (5; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) by least two solder joints (P), combined,
Wherein, described cutting element (5; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) material is soldered to described drill bushing (3 in locking manner; 103; 203; 303; 403; 503; 603; 703; 803; 903) a surface segment (A5 on a surface (A); A105) on.
2. unit head according to claim 1, is characterized in that, described in the cutting element (5 laid; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) at described unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901) direction of feed is the upper outstanding described drill bushing (3 that surpasses (x); 103; 203; 303; 403; 503; 603; 703; 803; 903) and/or about described unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901) longitudinal axis (L1) is radially inwardly outstanding surpasses one by described drill bushing (3; 103; 203; 303; 403; 503; 603; 703; 803; 903) circumference that internal valve (12) limits and/or about described unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901) longitudinal axis (L1) is outstanding radially outwardly surpasses one by shell surface (8; 408; 508; 608; 708; 808; 908) circumference limiting.
3. unit head according to claim 1, is characterized in that, described in the cutting element (5 laid; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) only at described unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901) direction of feed is the upper outstanding described drill bushing (3 that surpasses (x); 103; 203; 303; 403; 503; 603; 703; 803; 903).
4. unit head according to claim 1, is characterized in that, described drill bushing (3; 103; 203; 303; 403; 503; 603; 703; 803; 903) a surface segment (A5 on surface (A); A105) be especially configured to flat surface segment or be especially configured to the surface segment of spill or be especially configured to the surface segment of convex or be especially configured to the surface segment of the outside inclination declining against direction of feed diametrically or be especially configured to the surface segment of the inside inclination declining against direction of feed diametrically, the cutting element (5 of laying described in welding in this surface segment; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720).
5. according to the unit head described in any one of the preceding claims, it is characterized in that, described in the cutting element (5 laid; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) have and be more than or equal to HRC60 and the especially hardness in the scope of HRC60 to HRC80, wherein, described in the cutting element (5 laid; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) especially surpass 50% and preferably surpass 90% and make or especially by metal and hard material, made by metal, especially noble metal.
6. according to the unit head described in any one of the preceding claims, it is characterized in that, described in the cutting element (5 laid; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) by a plurality of n in other words layer (S1-S8; S101-S105; S301, S302) form, wherein, n-1 layer of (S1-S8 at least; S101-S105; S301, S302) comprise respectively a plurality of solder joints (P), wherein, every layer of (S1-S8; S101-S105; S301, S302) the quantity of solder joint (P) from the orlop (S1 of the Surface Contact with drill bushing; S101; S301) towards (S8 of the superiors; S105; S302) especially remain unchanged or especially in turn reduce or especially at least one section, reduce and remain unchanged at least one other section.
7. according to the unit head described in any one of the preceding claims, it is characterized in that described unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901) cutting element (5; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) there is different cutting element shapes and especially a plurality of different odontoid especially with repetition period front and back in succession.
8. according to the unit head described in any one of the preceding claims, it is characterized in that described unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901) comprise a spiral (9; 609), described spiral is arranged on described drill bushing (3; 103; 203; 303; 403; 503; 603; 703; 803; 903) shell surface (8; 408; 508; 608; 708; 808; 908) on and especially repeatedly around described drill bushing (3; 103; 203; 303; 403; 503; 603; 703; 803; 903).
9. according to the unit head described in any one of the preceding claims, it is characterized in that, at least one in described cutting element is as the cutting element (421 embedding; 621; 721; 821) the hard alloy cutting element that, especially conduct embeds forms, and it is fixed on one and is configured in described unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901) in the otch in (425).
10. according to the unit head described in any one of the preceding claims, it is characterized in that described drill bushing (3; 103; 203; 303; 403; 503; 603; 703; 803; 903) surface segment on surface (A) is constructed to recess (115), especially otch (116) or boring, the cutting element (5 of laying described in welding in described surface segment; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720), wherein, described in the cutting element (5 laid; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) the especially outstanding described recess (115) that surpasses.
11. according to the unit head described in any one of the preceding claims, it is characterized in that, described unit head (1, 101, 201, 301, 401, 501, 601, 701, 801, 901) comprise a plate armour (923) being connected on described at least one cutting element, wherein, described plate armour (923) comprises at least one layer, wherein, described layer consists of a plurality of solder joints that are arranged side by side, wherein, the thickness of a layer is that about 0.5mm to 1.5mm and described plate armour especially comprise two layers and preferred three layers, wherein, described plate armour has the especially hardness in the scope of HRC60 to HRC80, wherein, described plate armour is especially made by steel alloy or especially by precious metal alloys, is made or especially by steel alloy and hard material, made.
12. for the manufacture of unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901), especially by machine, driven for being applied to the unit head (1 on material to be processed (M); 101; 201; 301; 401; 501; 601; 701; 801; 901) method, wherein, described unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901) comprise a clamping handle (2; 102; 202; 302; 402; 502; 602; 702; 802; 902), one has the drill bushing bottom (4 of being made by the first material (W1); 104; 204; 304; 404; 504; 604; 704; 804; 904) drill bushing (3; 103; 203; 303; 403; 503; 603; 703; 803; 903) and at least one cutting element of being made by the second material (W2), wherein, described the second material (W2) is harder than the first material (W1), it is characterized in that, in order to form the cutting element (5 of laying; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720), by a welding wire, by front and back welding process in succession, form at least two upper and lower layer (S1-S8 stacked, that each is made by a plurality of solder joints that are arranged side by side (P); S101-S105; S301, S302), wherein, nethermost ground floor (S1; S101; S301) be welded on described unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901) a surface segment (A5; A105) on and by each ensuing, higher layer (S2-S8; S102-S105; S302) be welded on corresponding previous layer.
13. methods according to claim 12, is characterized in that, with described at least one cutting element adjacently in other words with cutting element (5; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) at least one in applies a plate armour (923) adjacently, and described plate armour consists of at least one layer, and described layer consists of a plurality of solder joints that are arranged side by side front and back welding process in succession a welding wire.
14. according to the method described in claim 12 or 13, it is characterized in that, carries out described welding process and form the cutting element (5 of laying with cold metal transfer method in the situation that; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) and/or form armoring (923), wherein, described welding wire especially comprises steel alloy or especially comprises precious metal alloys or especially by steel alloy and hard material, made, wherein, and the cutting element (5 being formed after welding process by welding wire; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) plate armour being formed after welding process by welding wire in other words (923) has at least hardness of 60HRC.
15. according to claim 12 to the method described in any one in 14, it is characterized in that described unit head (1; 101; 201; 301; 401; 501; 601; 701; 801; 901) cutting element (5 in welding; 105; 205; 305; 405; 505; 605; 705; 805; 905; 420; 520; 720) and/or armoring (923) at least one thermmohardening process, harden before.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012212042.4 | 2012-07-10 | ||
| DE201210212042 DE102012212042A1 (en) | 2012-07-10 | 2012-07-10 | Rotary drill bit e.g. machine-driven drill bit for drilling of e.g. reinforced concrete, has cutting element that is composed of two welding points which is cohesively welded on surface portion of surface area of drill sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103538153A true CN103538153A (en) | 2014-01-29 |
| CN103538153B CN103538153B (en) | 2017-09-29 |
Family
ID=49912154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310288804.1A Expired - Fee Related CN103538153B (en) | 2012-07-10 | 2013-07-10 | Unit head |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103538153B (en) |
| DE (1) | DE102012212042A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014007958A1 (en) * | 2014-06-04 | 2015-12-17 | Vittorio Pittana | Device and method for reducing the necessary drive power in core drilling |
| JP2016132143A (en) * | 2015-01-19 | 2016-07-25 | 協正金属實業有限公司 | Improvement in hole saw structure of drill for reinforced concrete |
| GB201712503D0 (en) * | 2017-08-03 | 2017-09-20 | Johnson Matthey Plc | Component proceduced for cold metal transfer process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2423511A1 (en) * | 1974-05-15 | 1975-11-27 | Krupp Gmbh | DRILL WITH CONVEYOR |
| DE2807198A1 (en) * | 1978-02-20 | 1979-08-30 | Heller Verwaltungsges | Cup-shaped boring tool mfr. - in which cutters are welded onto rim of cup and end of central drill |
| CN1060331A (en) * | 1991-11-22 | 1992-04-15 | 河南省黄河磨具厂 | Dry hollow diamond drilling bit |
| CN2108165U (en) * | 1991-12-27 | 1992-06-24 | 昌盛 | Multipurpose light driller |
| EP0730082A2 (en) * | 1995-03-03 | 1996-09-04 | Hawera Probst GmbH + Co. | Drill bit for percussive drilling |
| JP2002285777A (en) * | 2001-03-23 | 2002-10-03 | Shuei Kogyo:Kk | Rotary casing drill |
| CN2533251Y (en) * | 2002-01-25 | 2003-01-29 | 夏宪成 | Composite double-functional drill bit |
| US7152702B1 (en) * | 2005-11-04 | 2006-12-26 | Smith International, Inc. | Modular system for a back reamer and method |
| CN201002141Y (en) * | 2007-03-06 | 2008-01-09 | 张伟 | Drill bit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19740277B4 (en) | 1997-09-13 | 2012-05-24 | Robert Bosch Gmbh | drilling |
-
2012
- 2012-07-10 DE DE201210212042 patent/DE102012212042A1/en active Pending
-
2013
- 2013-07-10 CN CN201310288804.1A patent/CN103538153B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2423511A1 (en) * | 1974-05-15 | 1975-11-27 | Krupp Gmbh | DRILL WITH CONVEYOR |
| DE2807198A1 (en) * | 1978-02-20 | 1979-08-30 | Heller Verwaltungsges | Cup-shaped boring tool mfr. - in which cutters are welded onto rim of cup and end of central drill |
| CN1060331A (en) * | 1991-11-22 | 1992-04-15 | 河南省黄河磨具厂 | Dry hollow diamond drilling bit |
| CN2108165U (en) * | 1991-12-27 | 1992-06-24 | 昌盛 | Multipurpose light driller |
| EP0730082A2 (en) * | 1995-03-03 | 1996-09-04 | Hawera Probst GmbH + Co. | Drill bit for percussive drilling |
| JP2002285777A (en) * | 2001-03-23 | 2002-10-03 | Shuei Kogyo:Kk | Rotary casing drill |
| CN2533251Y (en) * | 2002-01-25 | 2003-01-29 | 夏宪成 | Composite double-functional drill bit |
| US7152702B1 (en) * | 2005-11-04 | 2006-12-26 | Smith International, Inc. | Modular system for a back reamer and method |
| CN201002141Y (en) * | 2007-03-06 | 2008-01-09 | 张伟 | Drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012212042A1 (en) | 2014-01-30 |
| CN103538153B (en) | 2017-09-29 |
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Granted publication date: 20170929 Termination date: 20200710 |