• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The rotary-shaft bit (7) inserted in a bushing (3) fixedly mounted, encloses by means of a hollow-cylindrical extension (9) an annular extension (5) of the bushing (3) and projecting in axial direction of said bushing (3), and in this manner is supported closer to the tip of the bit (8) in order to absorb transverse forces, noting that the front surface (14) of the hollow-cylindrical extension (9) of the bit (7) can be supported on the flange (4) of the bushing (3) (FIG. 1).
    公开号:SU900817A3
    申请号:SU792766254
    申请日:1979-05-10
    公开日:1982-01-23
    发明作者:Врулих Хервиг；Шетина Отто；Цитц Альфред
    申请人:Фоест-Альпине Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the mining industry, namely to cutting tools of the executive bodies of mining machines.
    Known cutters for mining machines, including a working head with a hard · alloy insert, a holder installed in the sleeve of the tool holder with the possibility of free rotation and a shank with a stopper [1].
    However, in the process of operation, the sleeve has a large load, which leads to its rapid wear.
    Closest to the invention, the technical solution is a cutter for mining machines, including a working head with a carbide insert, a holder mounted with a possible free rotation in the sleeve having an annular stop and fixed in the longitudinal hole of the tool holder, and a shank with an elastic locking element (2] .
    A disadvantage of the known incisors is their fragility due to the large loads on the working head, which leads to its rapid wear.
    The purpose of the invention is to increase the debt of the claviness of the cutter.
    This goal is achieved by the fact that in a cutter for mining machines, including a working head with a carbide insert, a holder mounted with the possibility of free rotation in a sleeve having an annular stop and fixed in the longitudinal hole of the tool holder, and a shank with an elastic locking element, the sleeve is made with an annular the protrusion associated with the annular stop and located coaxially with the holder, and the working head with the annular groove in which the annular protrusion is placed, and the annular collar, while the diameter of the annular protrusion and the sleeve is smaller than the diameter of its annular stop.
    While the annular collar of the working head is made with the possibility of contacting with the annular emphasis of the sleeve.
    .900817
    In addition, the toolholder is made with an annular groove.
    At the same time, a transverse hole with a thread is made in the tool holder, communicating with annular grooves made on the inner surface of the tool holder and the outer surface of the sleeve.
    In addition, the elastic locking element is made in the form of a bracket, and the outer surface of the sleeve and the surface of the longitudinal hole of the tool holder are made conical with
    L the angle of the cone b.
    In Fig "1 shows a cutter for mining machines, a common zid; in FIG. 2 n 3 locking element of the cutter 8 two projections.
    The cutter includes a working head 1 with a carbide insert 2, a holder 3, installed with. the possibility of free rotation so of the sleeve .4, having an annular protrusion 5 and an annular stop 6 and secured with a longitudinal hole 7 of the tool holder 8. The shank E of the tool holder is equipped with an elastic locking element 10 s in the form of a bracket with a bend a,
    The annular protrusion of the sleeve is located coaxially with the top <ake, and the working head has an annular groove 11, s of which is placed an annular shaft of the sleeve. The working head is made with an annular collar 12. The diameter of the annular protrusion of the sleeve is less than the diameter of its annular stop, while the annular emphasis of the sleeve is in contact with the annular collar of the working head. The tool holder is made with an annular groove 13, the tool holder has a transverse threaded hole 14 communicating with the annular grooves 15 “17 made on the inner surface 18 of the tool holder and the outer surface 19 of the sleeve, while the outer, surface of the sleeve and surface 20 of the longitudinal hole are made with a cone angle of 6 °,
    When notching, forces arise that act in the direction of arrow A (Fig. 1). The arrows ti and C denote the resulting forces that act on the tool holder. The forces 0 and E counteract these forces. “The force E is significantly greater than the force 0,” he perceived by the supporting surfaces of the annular protrusion and the annular stop of the sleeve. Due to the fact that the supporting surfaces of the annular protrusion and the annular stop of the sleeve are shifted closer to the tip of the cutter, the force D has lower limits.
    =; The transverse hole in the tool holder is connected to the pressure line of the hydraulic system, and with the appropriate pressure, the oil is pumped into the joints, so that the friction between No. fitting surfaces 20 is sharply reduced and the sleeve is easily removed from the tool holder.
    EFFECT: invention allows reducing friction between contacting over * but grips.
    权利要求:
    Claims (2)
    [1]
    3. In addition. yyri; B1se incisor zypol yen with an annular flow-through, npvi this and a cutter ai polneko transverse hole with thread colo, ay1tseas with ikholtsevm kamzakI made not the inner surface of the toolholder and the insertion surface of the sleeve. In addition, the corner with the supporting element is designed as an external surface of the sleeve and the surface of the longitudinal opening of the cutter holder, which is conical with the angle of the cone b. In Fig. 1, the cutter E) I am of the machines, generally, H zid; in fig. 2 t--. 3 locking element. Cutter cutter of two projections. Cutter ekpypyuchaet working head I with carbide heading 2. der. A jaw M, installed with the possibility of free wind in the sleeve .4, having a ring Eb; center 5 m ring stop b and fixed s longitudinal OTBepcTi-U 7 cutter 8. Shank E ask; -: the cutter is provided with an elastic stop zleemto. 10 8 as a bracket with a bend, Ring pry of the sleeve p3cs-iOf o wef-f coaxially with the power-ss-e working head has an annular groove 11 ,; s which pasficiipH annular in:;. to: stupid bushings, hoobocha holookz is made of a ring bout 12. The diameter of the bushing of the bushing is smaller than the diameter of its ring stop, psi ring the bushing's contact stop with the ring burto ;.- of the working blade of the cutter of the eygs of the slnene with ring-protrusion 13z 3 rez | eder yaTi / 5b has a cross-rim and has a thread that communicates with the pin eymm "znakomki 8foln1-yyy no." , with the outer surface of the vgu ki and the surface 20 of the longitudinal about torsion heats (O nena c. angle of angles, o fenced, When the force is nicked, forces are acting on the arrow A (figsO, Arrows B and C indicate the resultant Strong force, KOTopfcie act on the cutter erlat-this forces are counteracted by forces O and E "Force E is substantially larger than force D, and is perceived by the bearing surfaces of the ring spike and the ring stop of the hub due to the fact that the support surfaces of the ring spike and the ring stop of the sleeve are shifted closer to the tip of the tool, the force O has more low limits. The lateral opening in the cutter is connected to the hydraulic system pressure line, and with a corresponding head oil is pumped and the joints, due to which the friction between the fitting surfaces 20 is sharply reduced and the sleeve is easily removed from the holder cutter. The invention makes it possible to reduce rpeHi, i.e. between contacting surfaces. Claim L Cutter for mining machines, including a working head with a hard-alloy insert, a holder installed with the possibility of free rotation of the HF bushing, and an ielO ring ring stop and a strap in the longitudinal hole of the tool holder J and a shank with an elastic core; and SC SC And with the fact that, in order to increase the durability of the cut; the sleeve is made with an annular protrusion, eog R y with an annular yhopOM and; aspsokan m coaxially holder, and the working head - with an annular groove, e; The ring is located on an annular protrusion, and on the collar, with the diameter of the collar of the sleeve being smaller than the diameter ae of the ring stop. The cutter according to n.lj is distinguished vs and with the fact that the annular shoulder of the working head is complete with the possibility of contact with the annular abutment of the sleeve. 5 Cutter on PP.1 and 2, about tl and h 3 y sh, and ft so that the tool holder is made with an annular groove. H Cutter according to claims 1-3, characterized in that the tool holder has a transverse hole with a thread that communicates with annular grooves made on the inner surface of the tool holder and the outer surface of the sleeve. 5- A cutter according to claims 1-4, characterized in that the resilient locking element is designed as a bracket. 6. A cutter according to Claim 55, characterized in that the outer surface of the sleeve and the surface are about 5900817 &amp;
    cutterbore hole 1. US Patent No. 38рП58,
    made conical with an angle konu- “l, 299-86, pub. Is.
    sa 6 °.
    Information sources,
    [2]
    2. US patent number 379b4o,
    taken into account in the examination of j, published.197 (prototype).
    类似技术:
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    同族专利:
    公开号 | 公开日
    JPS552188A|1980-01-09|
    DE2915510C2|1981-11-19|
    DE2954400C1|1986-07-10|
    ATA437878A|1979-06-15|
    BE876355A|1979-09-17|
    PL117775B1|1981-08-31|
    AT354385B|1980-01-10|
    DE2915510A1|1979-12-20|
    MA18453A1|1979-12-31|
    JPS5716238B2|1982-04-03|
    ES480965A1|1980-01-16|
    ZA791825B|1980-05-28|
    HU179654B|1982-11-29|
    GB2024287A|1980-01-09|
    US4247150A|1981-01-27|
    RO83790A|1984-04-02|
    RO83790B|1984-04-30|
    AU4654479A|1979-12-20|
    GB2024287B|1982-07-14|
    CA1098551A|1981-03-31|
    FR2428735A1|1980-01-11|
    PL215720A1|1980-02-25|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT437878A|AT354385B|1978-06-15|1978-06-15|CHISEL ARRANGEMENT FOR A HORNING TOOL|
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