阅读说明：本技术 去毛刺刀头 (Deburring tool bit ) 是由 李世国 李卫平 牛帅平 于 2019-09-24 设计创作，主要内容包括：本发明是关于一种去毛刺刀头,涉及金属管道处理领域。主要采用的技术方案为：去毛刺刀头,其包括：安装部,所述安装部为一端开口的槽体,槽壁上间隔的设置有至少两个通孔,槽底设置有连接结构用于与气马达的转轴连接；刀体,所述刀体为条状,穿设在所述通孔中并与所述通孔滑动连接,所述刀体的第一端在所述安装部转动时,能够伸出所述槽壁的外表面预设距离用于切割毛刺,所述刀体的第二端与所述刀体的第一端相背并设置有台阶,用于限制所述刀体的第二端从所述通孔中通过；其中,所述刀体的数量小于等于所述通孔的数量。所述去毛刺刀头能够实现自动补偿的功能,无需如现有技术重新更换并焊接刀片,提高了去毛刺刀头的使用周期,减少了维护频次。(The invention relates to a deburring tool bit, and relates to the field of metal pipeline processing. The main technical scheme adopted is as follows: a deburring tool bit, comprising: the mounting part is a groove body with an opening at one end, at least two through holes are arranged on the groove wall at intervals, and a connecting structure is arranged at the groove bottom and is used for being connected with a rotating shaft of the air motor; the cutter body is strip-shaped, penetrates through the through hole and is in sliding connection with the through hole, a first end of the cutter body can extend out of the outer surface of the groove wall for a preset distance to cut burrs when the mounting portion rotates, and a second end of the cutter body is opposite to the first end of the cutter body and is provided with a step for limiting the second end of the cutter body to pass through the through hole; the number of the cutter bodies is less than or equal to that of the through holes. The deburring cutter head can realize the function of automatic compensation, does not need to replace and weld the blade again as in the prior art, improves the service cycle of the deburring cutter head, and reduces the maintenance frequency.)

1. a deburring tool bit, comprising:

The mounting part is a groove body with an opening at one end, at least two through holes are arranged on the groove wall at intervals, and a connecting structure is arranged at the groove bottom and is used for being connected with a rotating shaft of the air motor;

the cutter body is strip-shaped, penetrates through the through hole and is in sliding connection with the through hole, a first end of the cutter body can extend out of the outer surface of the groove wall for a preset distance to cut burrs when the mounting portion rotates, and a second end of the cutter body is opposite to the first end of the cutter body and is provided with a step for limiting the second end of the cutter body to pass through the through hole;

The number of the cutter bodies is less than or equal to that of the through holes.

2. the deburring tool of claim 1,

The mounting part is cylindrical, and one end of the mounting part is provided with a circular notch to form a groove body structure;

The connecting structure arranged at the bottom of the groove is a connecting hole, or the connecting structure is a quick connector.

3. Deburring tool according to claim 1 or 2,

The number of the through holes is 2-6, and the through holes are uniformly distributed on the groove wall of the mounting part at intervals;

The number of the cutter bodies is the same as that of the through holes.

4. The deburring tool of claim 3,

The number of the through holes is 4.

5. the deburring tool of claim 3, further comprising:

The elastic component is connected with the second end of each cutter body respectively;

When the mounting portion rotates, the cutter body is pulled by centrifugal force to deform the elastic component and move towards the outer part of the groove wall of the mounting portion, the cutter body extends out of the outer surface of the groove wall for a preset distance and is in a working state of cutting burrs, when the mounting portion stops rotating, the elastic component pulls the cutter body to return to an initial position, and the first end of the cutter body is flush with the outer surface of the groove wall of the mounting portion.

6. the deburring tool of claim 5,

The elastic component is an annular spring connected with all the cutter bodies;

or the elastic components are springs with the same number as the cutter bodies, and each spring is connected with two adjacent cutter bodies.

7. The deburring tool of claim 1,

the cross section of the cutter body is rectangular or circular, and the shape of the through hole is matched with that of the cross section of the cutter body.

8. The deburring tool of claim 1,

The side surface of the cutter body is provided with a convex rib extending along the length direction of the cutter body;

the inner wall of the through hole is provided with a sliding groove along the through direction of the through hole, and the sliding groove is in sliding connection with the convex rib in a matched mode.

9. The deburring tool of claim 8,

the number of the convex ribs is multiple, and the convex ribs are uniformly distributed on the side surface of the cutter body at intervals;

The quantity of spout with the quantity of protruding muscle is the same, just the spout is also evenly spaced distribution in the inner wall of through-hole.

10. The deburring tool of claim 1,

The first end of cutter body is wedge form, perhaps the first end of cutter body is circular-arc.

Technical Field

The invention relates to the field of metal pipeline processing, in particular to a deburring cutter head.

background

In the oil drilling operation, the sand control screen pipe is an important device and can provide material conditions for oil exploitation of high-sand oil reservoirs.

at present, in the production process of the sand control screen pipe, a base pipe needs to be drilled to form a liquid flowing channel, and burrs are left on the inner wall in the drilling process of the base pipe, so that the deburring becomes a necessary production process. In order to realize the deburring work, the prior art is to install a deburring tool bit on an air motor, extend the deburring tool bit into a sand control screen pipe and remove burrs by rotating the tool bit.

however, the existing tool bit is formed by directly welding a blade on a columnar tool handle, so that one end of the blade extends out of the side face of the tool handle for a certain distance, after the burr is cleaned for a period of time, the part of the blade extending out of the side face of the tool handle is abraded and arranged to disappear, the blade needs to be replaced, namely the blade needs to be welded on the tool handle again, and the existing tool bit is short in service cycle and high in maintenance frequency.

Disclosure of Invention

The invention mainly aims to provide a deburring cutter head, which can solve the problems of short service cycle and high maintenance frequency of the cutter head in the prior art.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the invention, a deburring tool bit is proposed, comprising:

the mounting part is a groove body with an opening at one end, at least two through holes are arranged on the groove wall at intervals, and a connecting structure is arranged at the groove bottom and is used for being connected with a rotating shaft of the air motor;

The cutter body is strip-shaped, penetrates through the through hole and is in sliding connection with the through hole, a first end of the cutter body can extend out of the outer surface of the groove wall for a preset distance to cut burrs when the mounting portion rotates, and a second end of the cutter body is opposite to the first end of the cutter body and is provided with a step for limiting the second end of the cutter body to pass through the through hole;

The number of the cutter bodies is less than or equal to that of the through holes.

The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.

Optionally, in the deburring tool bit, the mounting portion is cylindrical, and a circular notch is formed in one end of the mounting portion to form a groove structure;

The connecting structure arranged at the bottom of the groove is a connecting hole, or the connecting structure is a quick connector.

Optionally, in the deburring tool bit, the number of the through holes is 2 to 6, and the through holes are uniformly distributed on a groove wall of the mounting portion at intervals;

the number of the cutter bodies is the same as that of the through holes.

Optionally, the deburring tool described above, wherein the number of said through holes is 4.

optionally, the deburring tool bit further includes: the elastic component is connected with the second end of each cutter body respectively;

When the mounting portion rotates, the cutter body is pulled by centrifugal force to deform the elastic component and move towards the outer part of the groove wall of the mounting portion, the cutter body extends out of the outer surface of the groove wall for a preset distance and is in a working state of cutting burrs, when the mounting portion stops rotating, the elastic component pulls the cutter body to return to an initial position, and the first end of the cutter body is flush with the outer surface of the groove wall of the mounting portion.

Optionally, in the deburring tool bit, the elastic member is an annular spring connected to all the tool bodies;

Or the elastic components are springs with the same number as the cutter bodies, and each spring is connected with two adjacent cutter bodies.

optionally, in the deburring tool bit, the cross section of the tool body is rectangular or circular, and the shape of the through hole is matched with the shape of the cross section of the tool body.

Optionally, in the deburring tool bit, a convex rib extending along the length direction of the tool body is arranged on the side surface of the tool body;

the inner wall of the through hole is provided with a sliding groove along the through direction of the through hole, and the sliding groove is in sliding connection with the convex rib in a matched mode.

Optionally, in the deburring tool bit, the number of the convex ribs is multiple, and the multiple convex ribs are uniformly distributed on the side surface of the tool body at intervals;

The quantity of spout with the quantity of protruding muscle is the same, just the spout is also evenly spaced distribution in the inner wall of through-hole.

optionally, the first end of the cutter body is wedge-shaped, or the first end of the cutter body is arc-shaped.

by means of the technical scheme, the deburring tool bit at least has the following advantages:

The deburring cutter head provided by the embodiment of the invention comprises a mounting part and a cutter body, wherein the mounting part is of a groove body structure, and a through hole which is connected with the cutter body in a sliding manner is arranged on the groove wall of the groove body, so that the cutter body can continuously extend out of the through hole of the mounting part. Like this when the installation department with pneumatic motor be connected and stretch into the sand control screen pipe in carry out burring during operation, when the installation department rotates, the cutter body can keep stretching out the state of installation department cell wall under the effect of centrifugal force, and then can the pivoted get rid of the burr of sand control screen pipe inner wall, and along with operating time's extension, when the first end that is used for getting rid of the burr of cutter body takes place wearing and tearing, the cutter body can stretch out the certain distance of compensation under the effect of centrifugal force, guarantee that the first end of cutter body stretches out the installation department cell wall and predetermine the distance, can realize automatic compensation's function promptly, need not to change and weld the blade again like prior art, the life cycle of burring tool bit has been improved, make the bulk utilization of tool bit high, the maintenance frequency of burring.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of a deburring tool bit provided by an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a deburring tool bit provided in accordance with an embodiment of the present invention;

FIG. 3 is a schematic illustration of another deburring tool tip provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of another deburring tool tip provided in accordance with an embodiment of the present invention;

Fig. 5 is a schematic view of another deburring tool bit according to an embodiment of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the deburring tool bit according to the present invention, its specific embodiments, structures, features and effects will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As shown in fig. 1 and 2, an embodiment of the present invention provides a deburring tool 10 including: a mounting part 1 and a cutter body 2; the mounting part 1 is a groove body with an opening at one end, at least two through holes 11 are arranged on the groove wall at intervals, and a connecting structure 12 is arranged at the groove bottom and is used for being connected with a rotating shaft of the air motor; the cutter body 2 is strip-shaped, penetrates through the through hole 11 and is in sliding connection with the through hole 11, a first end of the cutter body 2 can extend out of the outer surface of the groove wall for a preset distance to cut burrs when the mounting portion 1 rotates, and a second end of the cutter body 2 is opposite to the first end of the cutter body 2 and is provided with a step 21 for limiting the second end of the cutter body 2 from passing through the through hole 11; wherein, the number of the cutter bodies 2 is less than or equal to the number of the through holes 11.

Specifically, the deburring tool bit 10 provided by the embodiment of the invention is a component which is used for being installed on an air motor, then extending into a sand control screen pipe under the driving of the air motor, and rotating to remove burrs on the inner wall of the sand control screen pipe under the driving of the air motor, and is a consumable part, so that the component needs to have durability.

The mounting portion 1 is a member for mounting the cutter body 2 and connecting with the air motor, and is preferably made of a metal material having a certain strength, such as a steel material, particularly a steel material having wear resistance. The groove wall and the groove bottom of the mounting part 1 of the groove body structure need to have certain thickness, so that the groove wall has certain strength after the groove wall is provided with the through hole 11, the sufficient supporting force can be provided for the cutter body 2 after the cutter body 2 is connected in the through hole 11, and the thickness of the groove wall can be obtained by calculation according to the stress condition in specific work.

wherein, the through-hole 11 that is located on the cell wall of installation department 1 needs with the cross sectional shape looks adaptation of cutter body 2, and sliding connection between the two is clearance fit, and the clearance is the better less, as long as can guarantee the two relative slip can, avoid too big clearance to make the burring tool bit 10 rotate the during operation, produce between cutter body 2 and the through-hole 11 and collide with. The connecting structure 12 at the bottom of the mounting portion 1 may be any structure capable of connecting with the rotating shaft of the air motor, such as a threaded hole, a through hole, or a quick coupling, such as a quick coupling that connects by means of a snap-fit connection.

the cutter body 2 is a structure for removing burrs on the inner wall of the sand control screen pipe, and is preferably made of wear-resistant hard alloy, and the specific composition parameters of the wear-resistant alloy are not specifically limited in the invention. The cutter body 2 is the bar to make the cutter body 2 can wear to establish in the through-hole 11 of installation department 1 cell wall, the step 21 of cutter body 2 second end is for spacing cutter body 2, avoids cutter body 2 to stretch out completely from through-hole 11, perhaps also can set up the second end of cutter body 2 to the cross-sectional area that the cross-sectional area is greater than the first end.

the deburring tool bit 10 provided by the embodiment of the invention is composed of a mounting part 1 and a tool body 2, wherein the mounting part 1 is in a groove structure, and a through hole 11 connected with the tool body 2 in a sliding manner is arranged on the groove wall of the groove body, so that the tool body 2 can continuously extend out of the through hole 11 of the mounting part 1. Like this when installation department 1 is connected with pneumatic motor and stretches into in the sand control screen pipe and carry out burring during operation, when installation department 1 rotates, cutter body 2 can keep stretching out the state of installation department 1 cell wall under the effect of centrifugal force, and then can the pivoted burr of getting rid of the sand control screen pipe inner wall, and along with operating time's extension, when the first end that is used for getting rid of the burr of cutter body 2 takes place wearing and tearing, cutter body 2 can stretch out certain distance of compensation under the effect of centrifugal force, guarantee that the first end of cutter body 2 stretches out installation department 1 cell wall and predetermines the distance, can realize automatic compensation's function, need not to change again and weld the blade like prior art, the life cycle of burring tool bit 10 has been improved, make the overall utilization ratio of burring tool bit high, the maintenance frequency has been reduced, and then can improve.

in a specific embodiment, as shown in fig. 1 and 2, the mounting portion 1 has a cylindrical shape, and one end of the mounting portion is provided with a circular notch to form a groove structure.

Specifically, the overall shape of the mounting part 1 is set to be cylindrical, so as to form an approximately disc-shaped groove structure, and the mounting part has the following advantages: on one hand, the groove wall is convenient to be provided with a through hole 11, and the cutter body 2 is convenient to extend into the groove through the notch and penetrate into the through hole 11; the cylindrical structure of on the other hand is convenient for stretch into in the sand control screen pipe, and the appearance profile that forms when rotating simultaneously is circular, can be with the inner wall adaptation of sand control screen pipe. In addition, the shape of the mounting part 1 can be a polygonal column, but the distance that the cutter body 2 extends out of the outer surface of the groove wall is lengthened at the moment, so that the first end of the cutter body 2 is located at the outermost edge of the outer shape profile of the mounting part 1 when the mounting part 1 rotates, and the cutter body 2 can be used for cutting burrs on the inner wall of the sand control screen pipe.

as shown in fig. 1 and 2, in an implementation, the number of the through holes 11 is 2-6, and the through holes 11 are uniformly distributed on the groove wall of the mounting portion 1 at intervals; the number of the cutter bodies 2 is the same as that of the through holes 11.

Specifically, when the deburring function is realized, the number of the cutter bodies 2 is only required to be larger than 1, namely the number of the cutter bodies 2 can be smaller than that of the through holes 11, at the moment, the motor is driven to drive the mounting part 1 to rotate, the burrs on the inner wall of the sand control screen pipe can be removed by the first end extending out of the outer surface of the groove wall of the mounting part 1, but at the moment, the center of the whole deburring cutter head 10 deviates from the center of the mounting part 1, so that the deburring cutter head 10 generates large noise when rotating and rotates unstably. The number of the through holes 11 is set to be 2-6, the number of the cutter bodies 2 is equal to that of the through holes 11, and the through holes 11 are further evenly distributed on the groove wall of the mounting part 1 at intervals, so that the formed deburring cutter head 10 is of an axisymmetric structure, noise generated when the deburring cutter head 10 rotates can be effectively reduced, and the rotation is stable.

In the embodiment, in which the preferred number of through holes 11 is 4, the preferred mounting portion 1 is cylindrical in shape, while the number of the adapted tool bodies 2 is 4, as shown in fig. 1 and 2.

As shown in fig. 5, in a specific implementation, the deburring tool bit 10 provided by the embodiment of the present invention further includes: the elastic component 3 is connected with the second end of each cutter body 2 respectively; when the mounting portion 1 rotates, the cutter body 2 is pulled by centrifugal force, the elastic component 3 deforms and moves towards the outer portion of the groove wall of the mounting portion 1, the cutter body 2 extends out of the outer surface of the groove wall for a preset distance and is in a working state of cutting burrs, when the mounting portion 1 stops rotating, the elastic component 3 pulls the cutter body 2 to return to an initial position, and the first end of the cutter body 2 is flush with the outer surface of the groove wall of the mounting portion 1.

Specifically, through the setting of elastomeric element 3, can make cutter body 2 keep not stretching out the state of 1 cell wall surface of installation department when installation department 1 does not rotate, the burring tool bit 10 of being convenient for stretches into the sand control screen pipe, need not the manual work and send cutter body 2 back to installation department 1 after, stretch into the sand control screen pipe with burring tool bit 10, improve work efficiency. The elastic force of the elastic member 3 may be specifically set according to the centrifugal force generated by the rotation of the deburring tool bit 10 during operation.

Further, the elastic component 3 is an annular spring connected with all the cutter bodies 2; or, the elastic components 3 are springs with the same number as the cutter bodies 2, and each spring is connected with two adjacent cutter bodies 2.

Specifically, the annular spring can be connected with the cutter body 2 by welding or by binding an iron wire, and the spring in the same single form can also be connected with the cutter body 2 by welding or by binding an iron wire.

in an embodiment, as shown in fig. 2 and 4, wherein the cross-section of the tool body 2 is rectangular or circular, the shape of the through hole 11 is adapted to the cross-sectional shape of the tool body 2.

Specifically, the cross section of the cutter body 2 may not be specifically limited, as long as the cutter body 2 can generate a cutting force when rotating along with the mounting portion 1, and has a certain strength to remove burrs on the inner wall of the sand control screen pipe, wherein the cross section of the cutter body 2 is preferably rectangular or circular, so as to facilitate the machining of the cutter body 2.

When the cutter body 2 is used for removing burrs through cutting force generated by a rotating mode, the main part for cutting the burrs is the first end of the cutter body 2, so that the first end of the cutter body 2 can be arranged in a wedge shape or an arc shape according to use requirements. Alternatively, the first end of the cutter body 2 may be ground to a desired configuration as required for a particular cutting burr.

As shown in fig. 3-5, in the embodiment, the side surface of the cutter body 2 is provided with a rib 22 extending along the length direction of the cutter body 2; the inner wall of the through hole 11 is provided with a sliding groove (not shown in the figure) along the through direction of the through hole 11, and the sliding groove is in sliding connection with the convex rib 22 in a matching manner.

specifically, protruding muscle 22 that cutter body 2 side set up to and the spout that the inner wall of through-hole 11 set up, make cutter body 2 have guide structure when sliding relative through-hole 11, can increase simultaneously between cutter body 2 and the through-hole 11 sliding connection's cooperation precision, avoid cutter body 2 to produce great rocking relative through-hole 11, make burring tool bit 10 when the rotation cutting burr, reduce colliding with of cutter body 2 and through-hole 11 inner wall, prolong the life-span of cutter body 2.

further, in order to further increase the matching precision between the cutter body 2 and the through hole 11 and reduce the shaking between the cutter body and the through hole, the number of the convex ribs 22 may be multiple, and the multiple convex ribs 22 are uniformly distributed on the side surface of the cutter body 2 at intervals; the number of the sliding grooves is the same as that of the convex ribs 22, and the sliding grooves are uniformly distributed on the inner wall of the through hole 11 at intervals. For example, the number of ribs 22 may be 4, and the number of runners may be 4.

In addition, the rib 22 disposed on the side surface of the cutter body 2 may be a groove, and the sliding groove disposed on the inner wall of the through hole 11 may be a protrusion structure, so that the cutter body 2 and the through hole 11 may be matched in a guiding manner.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.