CN103143776A

CN103143776A - Cutting tool

Info

Publication number: CN103143776A
Application number: CN2011104007881A
Authority: CN
Inventors: 赵陆军
Original assignee: Suzhou Safety Tech Valve Testing Co Ltd
Current assignee: Suzhou Safety Tech Valve Testing Co Ltd
Priority date: 2011-12-06
Filing date: 2011-12-06
Publication date: 2013-06-12

Abstract

The invention relates to a cutting tool, which comprises a cutting tool bit, a plurality of blades and blade pressing claws, wherein the cutting tool bit comprises a tool bit main body which is provided with a cylindrical body; the body is concavely provided with a pair of symmetrical notches; each notch is provided with two side walls which are perpendicular to each other; the blades are arranged on the tool bit main body; the blade pressing claws are used for holding and fixing the blades to the cutting tool bit and are arranged on one side walls of the notches; and the blades are fixed to one side walls of the notches through the blade pressing claws. The cutting tool, has the beneficial effects that the cutting tool is provided with the tool bit having a simple structure, is novel in design, small in size and easy to operate, and can simultaneously cut a plurality of surfaces.

Description

Cutting element

Technical field

The present invention relates to a kind of cutting element, relate in particular to a kind of cutter tip of the cutting element for repairing power system valve mating surface.

Background technology

In power generation system, interior inclined-plane in the outer step surface of valve, the sealing surface of top and valve cavity can become uneven under the shock of the corrosion of gas and upper valve body, thereby have influence on the air-tightness of whole system, make the steam that exists in the valve cavity just begin when not arriving the amount of demand toward outward leakage, at this moment, the outer step surface of valve, sealing surface and interior inclined-plane just need to redress, make its smooth surface, so that on not valve body when coordinating, tight between the two, steam can not revealed.Existing finishing way is that whole valving is removed, and is placed on ground and repairs, and because whole valve mechanism is huge, weight is very heavy, brings up to move down very difficultly, and whole need of work cuts off, and takes time and effort.

Summary of the invention

For the deficiencies in the prior art, the technical problem that the present invention solves is to provide a kind of cutting element, and its cutter tip is novel in design, and volume is relatively little, and is simple to operate.

For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that a kind of cutting element, comprise cutter tip, this cutter tip comprises the cutter head main body, this cutter head main body has columniform body, described body is concaved with symmetrical a pair of recess, and each recess has orthogonal two sidewalls separately; Be arranged on several blades on the cutter head main body; And for the blade paw that blade is clamped on cutter tip, described blade paw is arranged on a sidewall of described recess, and blade is fixed therein on a sidewall by the blade paw.

Further, the distance of described several blade distance body lateral surfaces is different.

Further, the edge of a knife of described blade stretches out and is parallel to the end face of body.

Further, two blades are installed on the same sidewall of described recess, described body has the end face of level, described cutter head main body also has and the integrated round table-like protruding top of body, the lateral surface at this protruding top and the end face of body are angled, the edge of a knife of described one of them blade stretches out and is parallel to the end face of body, and the edge of a knife of the described blade of the edge of a knife of another blade stretches out and be parallel to the lateral surface at protruding top.

Further, described cutter head main body also has the connecting portion that is shaped in the body bottom, and the cutter head main body connects whole cutter head main body from the top at protruding top and is provided with a plurality of installing holes.

Further, described cutting element comprises that also one installs main body, and described installation main body is provided with knob of key, and described connecting portion is concaved with keyway from the bottom, and described keyway cooperatively interacts with knob of key and is connected.

Compared with prior art, the invention has the beneficial effects as follows: described cutter tip simple in structure, modern design, volume is relatively little, and is simple to operate, can realize simultaneously the cutting to a plurality of.

Description of drawings

Fig. 1 is depicted as the assembling view of cutting element of the present invention;

Fig. 2 is the front view of cutter tip in cutting element shown in Figure 1;

Fig. 3 is the upward view of cutter tip shown in Figure 2;

Fig. 4 is the top view of cutter tip shown in Figure 2;

Fig. 5 is the front view of locating flange in cutting element shown in Figure 1;

Fig. 6 is the front view of motor terminal pad in cutting element shown in Figure 1;

Fig. 7 is the cutaway view of feed shelter in cutting element shown in Figure 1;

Fig. 8 is the partial sectional view of the blade paw of cutting element of the present invention.

The specific embodiment

Below with reference to accompanying drawing, cutting element 100 of the present invention is described in detail.

see also shown in Figure 1, described cutting element 100 comprises: main body (not label) is installed, the cavity that is connected and forms by a upper cavity 2 and lower chamber 1, be arranged on the cutter tip 3 that main body one end is installed, be set on upper cavity 2 and the locating flange 4 of close cutter tip 3, be arranged on the motor connecting axle (not label) in upper cavity 2, be arranged on cavity and be positioned at the motor 5 of the opposite end of cavity with cutter tip 3, and being used between locating flange 4 and motor 5 is mounted to motor terminal pad 6 on cavity with motor 5, this motor terminal pad 6 is connected to upper cavity 2 ends, described motor 5 is connected on upper cavity 2 by motor terminal pad 6 and motor connecting axle (not label).The cylindrical setting of described installation main body, described upper cavity 2 and lower chamber 1 are arranged on to install outside main body and be bolted and form a complete cavity together, and an end of described installation main body is provided with knob of key 8, and this knob of key 8 protrudes the surface that main bodys are installed and forms.

See also Fig. 2 to shown in Figure 4, described cutter tip 3 comprises cutter head main body 31, be arranged on three blades 33 on cutter head main body 31, and be used for blade 33 is clamped to blade paw 32 on cutter head main body 31.Described cutter head main body 31 comprise columniform body 311, with body 311 tops integrated be round table-like protruding top 312 and with the body 311 integrated connecting portions 313 in bottom.Described body 311 has the end face of level, the end face of the lateral surface at described protruding top 312 and body 311 angled (45 degree).Described cutter head main body 31 is provided with and is mounted to the installed surface that main body is installed.

Described cutter head main body 31 mirror image symmetries are concaved with a pair of recess 314,315.Described recess 314,315 is cut from the top at protruding top 312 to the position, middle and lower part of body 311 and is formed, and recess 314,315 has orthogonal two sidewall 314a, 315a, and described blade 33 and blade paw 32 are arranged on one of them sidewall 314a, 315a.Described one of them blade paw 32 is arranged on a sidewall 314a of recess 314, and two other blade paw 32 is arranged on the sidewall 315a of recess 315.Be parallel to end face on described sidewall 314a, 315a and be provided with for through

hole

314c, 315c that blade paw 32 is installed, these through

holes

314c, 315c run through the lateral surface that body 311 extends to body 311.Described three blades 33 are clamped on the sidewall 315a of the sidewall 314a of recess 314 and recess 315 by blade paw 32 separately, and the blades 33 that are arranged in described a pair of recess 314,315 are asymmetric setting.Described first blade 33 is arranged on the sidewall 314a of recess 314, and two other is that the second blade 33 and the 3rd blade 33 are arranged on the sidewall 315a of recess 315, and these three blades 33 are different apart from the distance of body 311 lateral surfaces.Wherein, the edge of a knife that is positioned at first blade 33 on sidewall 314a stretches out and is parallel to the end face of body 311, the edge of a knife that is positioned at second blade 33 on sidewall 315a stretches out and is parallel to the end face of body 311, the edge of a knife of the 3rd blade 33 stretches out and is parallel to the lateral surface of the inclination at protruding top 312, thereby becomes the miter angle setting with the edge of a knife of second blade 33.And second blade 33 apart from the distance of body 311 lateral surfaces farthest, the 3rd blade 33 is nearest apart from body 311 lateral surfaces, and the first blade 33 apart from the distance of body 311 lateral surfaces greater than the distance of the 3rd blade 33 apart from body 311 lateral surfaces, less than the distance of the second blade 33 apart from body 311 lateral surfaces.Described the first blade 33 is used for the cutting outer surface, and the second blade 33 is used for the cutting sealing surface, and the 3rd blade 33 is for inclined-plane in cutting, and namely these blades 33 are used for the impaired outer step surface of cutting correction power system valve, sealing surface and interior inclined-plane.

Cutter head main body 31 connects whole cutter head main body 31 downwards from the top at protruding top 312 and is concaved with three installing holes 34.On described installation main body also correspondence be provided with three installing holes, described cutter head main body 31 and main body is installed by the cooperating together of bolt and installing hole 34, namely this cutter head main body 31 is arranged on cutter tip 3 on the installation main body by pack into described installing hole 34 and installing in the installing hole of main body of three bolts.The bottom of described cutter head main body 31 is concaved with keyway 313b.

Described connecting portion 313 is concaved with circular cooperation mouth 313a from the bottom surface, the autogamy 313a that heals up continues the keyway 313b that upwards is arranged with.Described installed surface is the bottom surface of connecting portion 313, and the cooperation mouth 313a of described bottom surface is consistent with installation main body tail end shape, and described keyway 313b further is arranged with formation from a described cooperation mouthful 313a, and described keyway 313b and knob of key 8 cooperatively interact.

As shown in Figure 8, the claw 322 that described blade paw 32 is provided with installation portion 321 and extends to form from installation portion 321, described installation portion 321 is provided with installing hole 323, and described blade paw 32 passes through

hole

314c, 315c on installing hole 323 and sidewall 314a, 315a by screw and is threaded and is fixed on described sidewall 314a, 315a.And described claw 322 is bent to form from

installation portion

321, and 322 of this claws are used for being pressed on blade 33, and blade 33 is fixed on sidewall 314a, 315a.

See also Fig. 1 and shown in Figure 5, described locating flange 4 is provided with flat flange main body 40, and it has level and smooth surface this flange main body 40.This flange main body 40 heart therein is provided with perforate 41, and a circumference of close perforate 41 is provided with several screws 42.Described cavity is provided with sloping platform 11 at its outer surface, and on described sloping platform 11, corresponding described screw 42 is provided with screw, and screw 42 and screw sloping platform 11 on of described locating flange 4 by bolt and locating flange 4 coordinates simultaneously and be fixed on cavity.Described flange main body 40 also is provided with some locating holes 43, and these locating holes 43 are positioned on four angles of this locating flange 4, and described external equipment (being valve) is provided with some locating dowels (not shown), and described locating hole 43 is enclosed within described locating dowel and positions.The horizontal plane of described flange main body 40 also provides a datum level for this cutting element 100.

See also Fig. 1 and shown in Figure 6, described motor terminal pad 6 has the shape identical with motor 5 tail ends and which is provided with some screws 60, described cavity correspondence is provided with some screws (not shown), and described motor terminal pad 6 and cavity linked together by bolt and coordinating of screw 60.The flange 62 that described motor terminal pad 6 is provided with circular terminal pad body 61 and is extended to form by terminal pad body 61, described screw 60 is arranged on described flange 62, and described motor 5 is snap-fit attachment on upper cavity 2 by this terminal pad 6 and cavity.On described motor 5 also correspondence be provided with some screws (not shown), described motor 5 and motor terminal pad 6 are installed together by screw.

In original design, for being the big disk that radius forms by the edge of flange to the center of body, disk is large like this with the size of motor terminal pad 6 for we, whole cutting element is to be carried by manpower to be mounted in valve system, weight is too heavy, inconvenience is installed, and disk takes up space greatly also very much.Present design has reduced area and the volume of disk relatively, has also reduced weight.

See also shown in Figure 1ly, described motor 5 provides driving force for whole cutting element, and this motor 5 can provide positive and negative two kinds of driving forces, thereby is applicable to the different demands in different operating stage.When motor 5 provides the power that is rotated in the forward, cutter tip 3 clockwise rotates under the drive of driving force that (we define and are clockwise forward, but also can be for rotating counterclockwise), at this moment, the blade 33 that is positioned at diverse location cuts described outer step surface, sealing surface and inclined-plane respectively.After cutting is completed, motor 5 can provide a driving force opposite with when cutting for cutter tip 3, cutter tip 3 rotates counterclockwise (being backward rotation) under the drive of driving force, at this moment, blade 33 can rotate against direction before, and blade 33 soft flocks on every side that is deposited in that cuts rear generation is produced a reaction force and its cleaning is gone out, thereby be convenient to withdrawing, simultaneously, can prevent that soft flocks from falling in valve, affect the normal operation of whole system.

See also Fig. 1 and Fig. 7, described cutting element 100 also comprises the feed shelter 7 between cutter tip 3 and motor 5 that is arranged on described cavity, and described locating flange 4 is between described cutter tip 3 and feed shelter 7.Described feed shelter 7 comprises operation board 71 and is arranged on the first helical gear 72 on operation board 71.Be provided with the second helical gear (not shown) between described cavity and installation main body, described the second helical gear and the first helical gear 72 are connected.When operating personnel's rotating operation dish 71, operation board 71 drives the first helical gears 72 and rotates, and then drives whole cutter head and move forward, thereby determines the degree of depth that blade 33 will cut.The staff can calculate according to the degree that feed shelter 7 rotates the cutting output of cutter tip 3, the accurately degree of depth of judgement cutting.

Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.

Claims

1. cutting element, it is characterized in that: this cutting element comprises:

Cutter tip, this cutter tip comprises:

The cutter head main body, this cutter head main body has columniform body, and described body is concaved with symmetrical a pair of recess, and each recess has orthogonal two sidewalls separately;

Be arranged on several blades on the cutter head main body;

And for the blade paw that blade is clamped on cutter tip,

Described blade paw is arranged on a sidewall of described recess, and blade is fixed therein on a sidewall by the blade paw.

2. cutting element as claimed in claim 1, is characterized in that: the distance difference of described several blade distance body lateral surfaces.

3. cutting element as claimed in claim 1, it is characterized in that: described body has the end face of level, and the edge of a knife of described blade stretches out and is parallel to the end face of body.

4. cutting element as claimed in claim 1, it is characterized in that: two blades are installed on the same sidewall of described recess, described body has the end face of level, described cutter head main body also has and the integrated round table-like protruding top of body, the lateral surface at this protruding top and the end face of body are angled, the edge of a knife of described one of them blade stretches out and is parallel to the end face of body, and the edge of a knife of the described blade of the edge of a knife of another blade stretches out and be parallel to the lateral surface at protruding top.

5. cutting element as claimed in claim 4 is characterized in that: described cutter head main body also has the connecting portion that is shaped in the body bottom, and the cutter head main body connects whole cutter head main body from the top at protruding top and is provided with a plurality of installing holes.

6. cutting element as claimed in claim 1 is characterized in that: described cutting element comprises that also one installs main body, and described installation main body is provided with knob of key, and described connecting portion is concaved with keyway from the bottom, and described keyway cooperatively interacts with knob of key and is connected.