CN201050295Y - Punching device - Google Patents
Punching device Download PDFInfo
- Publication number
- CN201050295Y CN201050295Y CNU2007200530107U CN200720053010U CN201050295Y CN 201050295 Y CN201050295 Y CN 201050295Y CN U2007200530107 U CNU2007200530107 U CN U2007200530107U CN 200720053010 U CN200720053010 U CN 200720053010U CN 201050295 Y CN201050295 Y CN 201050295Y
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- piston
- hole
- outer shell
- face
- central
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- Expired - Fee Related
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Abstract
The utility model relates to a perforator belonging to a pneumatic tool of rock drilling machinery. A piston of the perforator is arranged the central section of the inner bore of an outer shell; the piston is connected with the outer shell flexibly. The back end of the central through hole of the piston is flexibly connected with the front end of a distribution block; the back end of the distribution is fixedly connected with a spring seat; the front end of the piston is flexibly connected with a drill bit through a tail pipe at the back end of the drill bit. The utility model adopts a distribution structure that is formed by the outer shell, the piston and the distribution block, and a non-inner casing structure( non-oriented sleeve structure); the size of the outer shell in axial direction can be shortened greatly; the thickness of the wall of the outer shell can be added properly, thereby the life time of the utility model can be extended; furthermore, the utility model has the advantages of simple structure, easy processing, low costs in production and use and high efficiency.
Description
Technical field
The utility model relates to the rock drilling machinery pneumatic tool, particularly pneumatic punch.
Background technology
The most form of structure that inner casing is arranged that adopt of the middle and high moving punch of calming the anger of the prior art, its piston, inner casing, spool, distribution seat etc. are installed in the elongated outer shell, the outer shell rear end is equipped with the back joint of flat position of spanner and jointed rod screw thread, and the outer shell front end is equipped with the front connector that is threaded.Its operating principle is that high-pressure blast enters punch through drilling rod, by the distribution effect of outer shell, distribution seat, inner casing, makes piston reciprocates hit drill bit.Waste gas after the work done is discharged from chisel edge, is used for deslagging.Leave the rock stratum of strike when drill bit after, drill bit stretches out forward, and high-pressure blast is directly discharged.After impactor work a period of time, because the wearing and tearing of part, the fit clearance between each part is increasing, causes impactor efficient more and more lower.The wall thickness of outer shell is more and more thinner owing to wear and tear, and causes fracture at last.Piston also fracture, chipping phenomenon occur because of fatigue strength reaches capacity.The external diameter of forward and backward joint also constantly reduces, thereby needs often to change the application life that forward and backward joint increases outer shell.The inner casing of impactor requires to guarantee higher cylindricity and finish when processing and manufacturing, and the processing of the endoporus of outer shell and inner casing processing genus thin wall and deep hole, and bigger difficulty is arranged in heat treatment and machine.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, the efficient height, and long service life, handling ease is made and the low punch of use cost.
Technical solution of the present utility model is the middle part that the piston of punch is located at the endoporus of outer shell, piston and outer shell flexibly connect, the front end of the rear end of the central through hole of piston and distribution seat flexibly connects, fixedly connected with spring base in the rear end of distribution seat, the front end of piston flexibly connects by the tail pipe and the drill bit of the rear end of drill bit.
Above-described back joint can be made up of transit joint, clamping sleeve, wear-resistant sleeve and back adapter body, wherein between the removable two scalariform boss that are fixed on the outside in the middle part of the adapter body of back of wear-resistant sleeve.
Piston of the present utility model can be columniform, it is axially arranged with central through hole, on forward and backward two sections faces of cylinder of piston, respectively be provided with forward and backward two sections axial notches that are not connected, groove on the leading portion face of cylinder is communicated with the front end face of piston, is provided with the radial direction through hole that communicates with central through hole in the groove on the back segment face of cylinder of piston.
Can be provided with a plurality of radial direction through hole that communicate with central through hole on the back segment cylinder of above-described piston, on the rear end face of piston, be provided with the axially extending bore that is connected of a plurality of corresponding and above-mentioned radial direction through hole.
Can only be provided with an annular groove on the casing wall at the middle part of the endoporus of outer shell of the present utility model.
Distribution seat of the present utility model can be provided with central through hole, and the cylindrical rear end face of its back segment is provided with a circular hole that is used for fixing spring base, and cylindrical front end face is provided with an annular groove, and the cylindrical face of cylinder is provided with the annular groove that is used to install O type circle; Its leading portion is a tubular structure, is provided with a plurality of axial grooves symmetrically in the position of the close front end face of the wall body of tubular structure.
The central hole of the close distribution seat front end face of the front end of the axial groove of above-described distribution seat can be provided with the axially extending bore of a diameter size less than the central through hole size.
The leading portion portion and the back segment portion of spring base of the present utility model can be respectively equipped with axial hole, are provided with an axially extending bore between at the bottom of the hole of two axial holes; Its center section part is provided with an annular boss, is provided with the through hole that axial hole a plurality of and back segment portion is communicated with at the annular boss and the front end face of the intermediate location of leading portion portion.
Operating principle of the present utility model is, utilize propulsive mechanism that the drill bit of punch front end is pressed on the rock stratum, open gas source switch, high-pressure air source enters the back joint of punch from drilling rod, enter the distribution seat by spool, spring base, come out from the axial groove of distribution seat, the annular groove on the casing wall of the radial hole by piston, axial notch, outer shell endoporus enters the front end of piston, piston be subjected to backward active force and operation backward.When piston ran to outer shell formation fitted seal backward, high-pressure air source no longer entered the front end of piston, and piston continues motion backward.Piston runs to its radial hole backward and communicates with the axial groove of distribution seat, at this moment high-pressure air source enters piston rear end from radial direction through hole, the axially extending bore that the axial groove of distribution seat comes out to enter piston, and piston is subjected to active force forward and does accelerated motion forward and hit drill bit.So constantly circulation, piston is constantly reciprocating.When propulsive mechanism was mentioned punch, drill bit stretched out, and piston also is close to the rear end face of drill bit simultaneously, and at this moment high-pressure air source is directly discharged through radial direction through hole, the axially extending bore of piston.The utility model utilizes the axial groove of radial direction through hole, axially extending bore, axial notch and the distribution seat of piston to replace inner casing to carry out distribution.This gas distribution structure shortens about 100mm the comparable common structure of outer shell, only need open on the casing wall of the endoporus of outer shell and cross the gas annular groove one.
The utility model has the advantages that simple in structure, low cost of manufacture; Outer shell shortens about 100mm than common structure, and difficulty of processing lowers; And owing to adopt the structure of no inner casing (fairlead), thereby the wall thickness of outer shell can increase more than the 2mm, improved the application life of punch greatly; Because the back joint has adopted wear-resistant sleeve, only need change wear-resistant sleeve when changing the back joint simultaneously, use cost reduces greatly; In addition, the piston stroke of the existing punch of the stroke ratio of piston is short, thereby the operating frequency height, and production efficiency improves greatly.
Description of drawings
Fig. 1 is an organigram of the present utility model;
Fig. 2 is an exploded view of the present utility model;
Fig. 3 is the organigram of piston of the present utility model;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is along the sectional drawing of B-B among Fig. 3;
Fig. 6 is along the sectional drawing of C-C among Fig. 3;
Fig. 7 is along the sectional drawing of D-D among Fig. 3;
Fig. 8 is the organigram of distribution seat of the present utility model;
Fig. 9 is the organigram of back of the present utility model joint;
Figure 10 is the organigram of spring base of the present utility model.
The specific embodiment
According to Fig. 1, shown in Figure 2, the utility model mainly is made up of back joint 1, spool 2, spring base 3, distribution seat 4, piston 5, outer shell 6, front connector 7, drill bit 8.Back joint 1 is connected with the internal thread of the rear end of outer shell 6 by the external screw thread of its front end.Little rectangular loop 17 is installed in the groove position of spool 2 rear ends, and little rectangular loop 17 rear ends are pressed in the bottom of the axial hole of back joint 1.Spring base 3 is installed in the front end of the back joint 1 in the endoporus of outer shell 6, and large rectangle circle 14 cooperates with spring base 3 rear end cylindricals, and back joint 1 compresses large rectangle circle 14 by packing ring 15 makes spring base 3, distribution seat 4 be fixed on outer shell 6 rear ends.Compression spring 16 is installed in the endoporus of the front end of spring base 3.The front end of spool 2 is inserted in the endoporus of rear end of spring base 3, and withstands on the rear end face of compression spring 16.The endoporus of the rear end of distribution seat 4 is installed with the front end of spring base 3 and is connected.The front end of distribution seat 4 is installed piston 5, and the front end matched in clearance of distribution seat 4 is inserted in the axial hole of piston 5 rear ends, and distribution seat 4 front end endoporus are equipped with stopper 12.The cylindrical of piston 5 is connected with the endoporus matched in clearance of outer shell 6.Front connector 7 is connected with the internal thread of outer shell 6 front ends by the external screw thread of its rear end.Drill bit 8 is connected with the internal spline of front connector 7 rear ends by the external splines at its middle part, and the axial location of drill bit 8 is to be stuck in front connector 7 location by two half-round clamping rings 9, and snap ring O type circle 10 is installed on two half-round clamping rings 9.The front end of piston 5 is connected by hard-wired tail pipe 11 matched in clearance in its centre bore and drill bit 8 rear ends.The tail pipe 11 of drill bit 8 is connected with the rear end endoporus interference fit of drill bit 8.
According to Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, piston 5 of the present utility model is one to be processed with the cylinder of central through hole, on forward and backward two sections faces of cylinder of piston 5, each is processed with two forward and backward two sections axial notches that are not connected 501,502 symmetrically, two grooves 501 on the leading portion face of cylinder are communicated with the front end face of piston 5, and two grooves 502 on the back segment face of cylinder are not communicated with the rear end face of piston 5.The position of the close rear end face between two grooves on the back segment face of cylinder of piston 5 is processed with two radial direction through hole that communicate with central through hole 503,504.Be processed with four radial direction through hole 505 that communicate with central through hole that are mutually 55 ° of angles with above-mentioned radial direction through hole 503,504 at the cylindrical middle part of the back segment of piston 5.On the same circumference on the rear end face of piston 5, be processed with the axially extending bore 506 that four corresponding respectively and above-mentioned four radial direction through hole 505 are connected.
According to shown in Figure 8, distribution seat 4 of the present utility model is processed with central through hole, and its back segment is a cylinder, is processed with a circular hole 401 that is used for mounting spring seat 3 at cylindrical rear end face.Be processed with an annular groove 405 at cylindrical front end face.Be processed with an annular groove 402 on the cylindrical face of cylinder, O type circle 13 is housed in the annular groove 402.The leading portion of distribution seat 4 is a tubular structure, is processed with four microscler axial grooves 403 that are communicated with central through hole symmetrically in the position of the close front end face of the wall body of tubular structure.Central hole at close distribution seat 4 front end faces of microscler axial groove 403 front ends is processed with the axially extending bore 404 of a diameter size less than the central through hole size, and this hole is connected with stopper 12 interference fit.
According to shown in Figure 9, back of the present utility model joint 1 is made up of transit joint 18, clamping sleeve 19, wear-resistant sleeve 20, back adapter body 21.Be processed with annular groove 23 on back adapter body 21 leading sections, be used to install O type circle 22.Wear-resistant sleeve 20 matched in clearance are installed between the two scalariform boss in the outside at adapter body 21 middle parts, back.Transit joint 18 is connected with the conical external screw thread of back adapter body 21 front ends by the conical internal thread of its front end, and by clamping sleeve 19 wear-resistant sleeve 20 is fixed.Back joint 1 will guarantee that wear-resistant sleeve 20 compresses back adapter body 21, and reserve certain clearance with outer shell 6 in assembling process, adopts during assembling to install pad additional and guarantee.
According to shown in Figure 10, spring base 3 leading portion portions of the present utility model and back segment portion are processed with axial hole 301,302 respectively, are processed with an axial small through hole 303 between at the bottom of the hole of two axial holes 301,302.Its center section part is processed with an annular boss, is processed with two through holes 304 that are communicated with the axial hole of back segment portion at the annular boss and the front end face of the intermediate location of leading portion portion.
Claims (8)
1. punch, comprise outer shell, be fixed on the outer shell rear end back joint, spring base, be located at spool between back joint and the spring base, be located at distribution seat, the piston at the rear portion of outer shell endoporus, the drill bit that is located at the front connector of outer shell front end, flexibly connects with front connector, it is characterized in that piston is located at the middle part of the endoporus of outer shell, piston and outer shell flexibly connect, the front end of the rear end of the central through hole of piston and distribution seat flexibly connects, fixedly connected with spring base in the rear end of distribution seat, the front end of piston flexibly connects by the tail pipe and the drill bit of the rear end of drill bit.
2. punch according to claim 1 is characterized in that the back joint is made up of transit joint, clamping sleeve, wear-resistant sleeve and back adapter body, wherein between the removable two scalariform boss that are fixed on the outside in the middle part of the adapter body of back of wear-resistant sleeve.
3. punch according to claim 1, it is characterized in that described piston is columniform, it is axially arranged with central through hole, on forward and backward two sections faces of cylinder of piston, respectively be provided with forward and backward two sections axial notches that are not connected, groove on the leading portion face of cylinder is communicated with the front end face of piston, is provided with the radial direction through hole that communicates with central through hole in the groove on the back segment face of cylinder of piston.
4. punch according to claim 3 is characterized in that the back segment cylinder of described piston is provided with a plurality of radial direction through hole that communicate with central through hole, is provided with the axially extending bore that is connected of a plurality of corresponding and above-mentioned radial direction through hole on the rear end face of piston.
5. punch according to claim 4 is characterized in that the casing wall at middle part of the endoporus of outer shell is provided with an annular groove.
6. punch according to claim 5, it is characterized in that the distribution seat is provided with central through hole, the cylindrical rear end face of its back segment is provided with a circular hole that is used for fixing spring base, and cylindrical front end face is provided with an annular groove, and the cylindrical face of cylinder is provided with an annular groove; Its leading portion is a tubular structure, is provided with a plurality of axial grooves symmetrically in the position of the close front end face of the wall body of tubular structure.
7. punch according to claim 6 is characterized in that the central hole of close distribution seat front end face of front end of the axial groove of distribution seat is provided with the axially extending bore of a diameter size less than the central through hole size.
8. according to claim 1 or 6 described punches, the leading portion portion and the back segment portion that it is characterized in that spring base are provided with axial hole respectively, between at the bottom of the hole of two axial holes, be provided with an axially extending bore, its center section part is provided with an annular boss, is provided with the through hole that axial hole a plurality of and back segment portion is communicated with at the annular boss and the front end face of the intermediate location of leading portion portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200530107U CN201050295Y (en) | 2007-06-19 | 2007-06-19 | Punching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200530107U CN201050295Y (en) | 2007-06-19 | 2007-06-19 | Punching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050295Y true CN201050295Y (en) | 2008-04-23 |
Family
ID=39336779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200530107U Expired - Fee Related CN201050295Y (en) | 2007-06-19 | 2007-06-19 | Punching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050295Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234621A (en) * | 2013-06-13 | 2014-12-24 | 张斌 | Rotary-valve hydraulic rock drill |
| CN111098264A (en) * | 2019-12-16 | 2020-05-05 | 廊坊百威钻具制造有限公司 | Hand-held pneumatic impactor |
-
2007
- 2007-06-19 CN CNU2007200530107U patent/CN201050295Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234621A (en) * | 2013-06-13 | 2014-12-24 | 张斌 | Rotary-valve hydraulic rock drill |
| CN111098264A (en) * | 2019-12-16 | 2020-05-05 | 廊坊百威钻具制造有限公司 | Hand-held pneumatic impactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 510520 Guangdong city of Guangzhou province Tianhe District Longdong Ke Mu Lang Ao tou Nan Jie Yi Xiang No. 3 first floor Patentee after: Guangzhou Tianzao Seiki Machinery Co., Ltd. Address before: 510520 party Ke Mu Lang Wu Cun, Guangdong city of Guangzhou province Tianhe District cave No. 47 Patentee before: Guangzhou Tianzao Seiki Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20150619 |
|
| EXPY | Termination of patent right or utility model |