CN102606066A

CN102606066A - Impacter

Info

Publication number: CN102606066A
Application number: CN2012100952369A
Authority: CN
Inventors: 董全文; 葛东辉; 李淑梅; 张飞
Original assignee: XUANHUA SUPERMAN DTH MACHINERY CO Ltd
Current assignee: XUANHUA SUPERMAN DTH MACHINERY CO Ltd
Priority date: 2012-03-31
Filing date: 2012-03-31
Publication date: 2012-07-25

Abstract

The invention discloses an impacter, which relates to the technical field of drilling equipment for engineering construction of mines, railways, transportation, hydroelectricity and the like. The impacter comprises a drill bit, an air distribution rod, a piston, a front joint, a rear joint, an outer sleeve and a guide sleeve. The front joint is connected with one end of the outer sleeve by the aid of a steel wire barrel, the guide sleeve is connected with the other end of the outer sleeve by the aid of a steel wire barrel, the front joint is connected with the other end of the guide sleeve by the aid of a steel wire barrel, the drill bit is connected with the front joint through a retainer ring and a limiting steel ball, and the rear end of the air distribution rod is fixedly connected with the rear joint by the aid of a lock nut of the air distribution rod. The impacter has the advantages that the service life of the impacter is prolonged while maintenance cost of the impacter is reduced by changing a connecting way of connectors; manufacturing cost of the impacter is reduced by changing an inner hole structure of the outer sleeve; and the impacter can be effectively shortened in length to be convenient for operation in narrow spaces, and application range of the impacter is widened.

Description

Impactor

Technical field

The present invention relates to mine, railway, traffic, water power, etc. the rig technical field of engineering construction.

Background technology

Present employed wind pressure impactor is for there being valve twin-tub type, and its outer tube and cylinder form interior outer shell, and valve actuating mechanism has valve block, sends into the compressed air of impactor through drilling rod and alternately delivers to piston front and back air chamber respectively through the valve block displacement; Make reciprocating motion of the pistons impact bore bit, impact energy is imposed on rock, there are some disadvantages in this type of impactor; The one, because complex structure, the parts that need do mutual motion are many, and air consumption is big, and energy consumption is high; Inefficiency, the 2nd, valve block acts frequently, and damages easily; Thereby the fault of causing, the 3rd, the scope of application is little, can only under low blast scope, use; For overcoming the above problems; Low blast down-the-hole air hammer in a kind of valveless single cylinder type appears in the market; It comprises outer tube, bore bit, front connector, back joint, non retern valve and distribution bar and valve seat, can effectively reduce air consumption and energy consumption, prolongs impactor application life; But because the outer tube endoporus is a shoulder hole, difficulty of processing is bigger in application process for it; The distribution bar is installed in the outer tube end through supporting base, and back joint is connected with outer tube again, outer tube front end installed inside fairlead, front connector and bore bit; Impactor length is longer, is inappropriate in narrow space, carrying out operation, and existing impactor front connector all is connected with outer tube through screw thread with the back joint; And impactor itself receives frequent impact in the course of the work, and the nipple shock resistance is relatively poor, and in case thread damage occurs; Promptly need change corresponding component, maintenance cost is higher.

Summary of the invention

The technical problem that the present invention will solve provides a kind of impactor, adopts steel-wire screw-socket to connect the parts that are threaded, improves the impact resistance of connecting portion, prolongs each parts application life; Reduce the impactor maintenance cost, the cancellation supporting base, the fairlead two ends are connected with front connector with outer tube respectively, shorten impactor length; Enlarge its scope of application, be particularly useful for than narrow space, and simple in structure; Alleviate overall weight, easy to operate, cost is low.

For solving the problems of the technologies described above, the technical scheme that the present invention taked is: a kind of impactor comprises bore bit, distribution bar and piston; Also comprise front connector, back joint, outer tube and fairlead; Said front connector is connected with outer tube one end by means of steel-wire screw-socket, and said fairlead is connected by means of the other end of steel-wire screw-socket and outer tube, and said front connector is connected by means of the other end of steel-wire screw-socket and said fairlead; Said bore bit is connected with said front connector with spacing steel ball by means of back-up ring; Said distribution rod rear end is fixedly connected with the back joint by means of the distribution lever lock is female.

Said back joint endoporus is the ladder screw thread, and itself and outer tube link are provided with inside snap ring, and said distribution bar passes the snap ring setting and is connected with joint screw thread by means of the distribution lever lock mother with back joint inner hole thread cooperation.

Said piston comprises gas distribution section and hits bar that gas distribution section is made as one with the strike bar and said strike bar open end cooperates with said fairlead slipper seal.

Said outer tube endoporus is the through hole of unified diameter.

Said outer tube outer wall is provided with the dismounting bayonet socket.

Beneficial effect of the present invention is following:

(1) between joint and the outer tube of back, adopt steel-wire screw-socket to be connected between fairlead and the outer tube and between front connector and the fairlead; Because impactor is frequently received impact in the course of the work, connecting portion damages easily, adopts steel-wire screw-socket to connect; Can directly change steel-wire screw-socket after damaging appears in connecting portion gets final product; Avoid the integral replacing parts, improve on the one hand impactor application life, can also reduce the impactor maintenance cost on the one hand in addition;

(2) the outer tube endoporus adopts the through hole of same diameter, abandons existing stepped endoporus, is convenient to processing and manufacturing, reduces the impactor manufacturing cost;

(3) the direct and back joint matching and fixing of distribution bar is cancelled original supporting base, and then joint is connected with outer tube by means of fairlead, shortens impactor length, is convenient to operation in small space, enlarging application range;

(4) bore bit is spacing through back-up ring and steel ball realization, cancels original card pricker ring, shortens bore bit length, also shortens the impactor entire length to a certain extent.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a piston structure sketch map of the present invention;

Fig. 3 is that the A-A of Fig. 2 is to view;

Fig. 4 is a distribution bar structural representation;

Fig. 5 outer sleeve structure sketch map;

Fig. 6 is that the A-A of Fig. 5 is to view;

Fig. 7 is that the B-B of Fig. 5 is to view;

Fig. 8 is the fairlead structural representation;

Fig. 9 is the bore bit structural representation;

In the accompanying drawings: 1, back joint; 2, the distribution lever lock is female; 3, support ring; 4, distribution bar; 5, piston; 6, fairlead; 7, front connector; 8, spacing steel ball; 9, bore bit; 10, back-up ring; 11, guide pad; 12, steel-wire screw-socket; 13, outer tube; 14, dismounting bayonet socket; 15, hole; 16, preceding air chamber air distribution hole; 17, groove; 18, rear gas chamber's air distribution hole; 19, gas distribution section; 20, hit bar; 21, air flue; 22, nozzle; 23, long slot bore; 24, slotted hole.

The specific embodiment

In sum, the present invention relates to a kind of impactor (referring to Fig. 1), bore bit 9 (referring to Fig. 9), distribution bar 4 (referring to Fig. 4) and piston 5 (referring to Fig. 2); Its key improvements is: also comprise front connector 7, back joint 1, outer tube 13 (referring to Fig. 5,6 and 7) and fairlead 6 (referring to Fig. 8); Said back joint 1 is connected with outer tube 13 1 ends by means of steel-wire screw-socket 12, and said fairlead 6 is connected with outer tube 13 other ends by means of steel-wire screw-socket 12, and said front connector 7 is connected with said fairlead 6 other ends by means of steel-wire screw-socket 12; Said bore bit 9 is connected with said front connector 7 with spacing steel ball 8 by means of back-up ring 10; Said distribution bar 4 rear ends are fixedly connected with back joint 1 by means of distribution lever lock female 2.Adopt steel-wire screw-socket to be connected between back joint and the outer tube, between fairlead and the outer tube and between front connector and the fairlead; Because impactor is frequently impacted in the course of the work, connecting portion damages easily, adopts steel-wire screw-socket to connect; Can directly change steel-wire screw-socket after damaging appears in connecting portion gets final product; Avoid the integral replacing parts, improve on the one hand impactor application life, can also reduce the impactor maintenance cost on the one hand in addition; Bore bit is realized spacing through back-up ring and steel ball, cancel original card pricker ring, shortens bore bit length, also shortens the impactor entire length to a certain extent.

Said back joint 1 endoporus is the ladder screw thread, and its and outer tube 13 links are provided with inside snap ring, and said distribution bar 4 passes the snap ring setting and is connected with joint screw thread by means of the distribution lever lock mother who cooperates with back joint 1 inner hole thread 2; Direct and the back joint matching and fixing of distribution bar is cancelled original supporting base, and then joint is connected with outer tube by means of fairlead, shortens impactor length, is convenient to operation in small space, enlarging application range.

Said piston 5 comprises gas distribution section 19 and hits bar 20 that gas distribution section 19 is made as one with strike bar 20 and said strike bar 20 open ends cooperate with said fairlead 6 slipper seals.

Said outer tube 13 endoporus are the through hole of unified diameter; The outer tube endoporus adopts the through hole of same diameter, abandons existing stepped endoporus, and is simple in structure, is convenient to processing and manufacturing, reduces the impactor manufacturing cost.

Said outer tube 13 outer walls are provided with the dismounting bayonet socket, are convenient to dismounting and maintenance.

The present invention mainly is made up of front connector 7, back joint 1, outer tube 13, distribution bar 4, piston 5, spacing steel ball 8, fairlead 6 and bore bit 9; Its innovative point is that back joint 1 is connected with outer tube 13 through steel-wire screw-socket 12; Outer tube 13 other ends are connected with fairlead 6 through steel-wire screw-socket 12 equally; Fairlead 6 other ends are connected with front connector 7, and bore bit 9 is contained in the front connector 7, limit it through spacing steel ball 8 and move within the specific limits; Distribution bar 4 is positioned at outer tube 13 inside, and distribution bar 4 is directly installed on the joint 1 of back; Adopt preceding air chamber air distribution hole 16 and rear gas chamber's air distribution hole 18 and groove 17 distributions on distribution bar 4 and the piston 5, the strike bar 20 of piston 5 and 15 distributions of hole radially on fairlead 6 and the fairlead 6.Mainly be supporting seat and the cylinder of having cancelled original structure, be located at fairlead the outside of outer tube simultaneously, distribution is mainly accomplished by distribution bar, piston and fairlead; Shortened the intermediate links of calming the anger, practiced thrift air-flow, the pressure limit of adaptation is wider; Can normally in the pressure limit of 0.5 ~ 2.1Mpa effectively work, reduced the loss of calming the anger, simplify the structure; Improve target efficiency, shortened the impactor overall length, be adapted at construction in narrow and small tunnel and the engineering trade.

In concrete application process; Compressed air gets in the hole of back joint 1 and is contained in spacing distribution bar 4 inside of back joint 1 usefulness distribution lever lock mother 2; Through distribution bar 4 radially at least 3 long slot bores 23 of right-hand member get into gas distribution section 19 inside of pistons 5, the preceding air chamber air distribution hole 16 on the elongated slot 17 that distributes through piston 5 right-hand members gets into outer tubes 13 inside, the strike bar 20 of piston 5 has sealed the hole 15 on the fairlead 6 simultaneously; Air chamber before compressed air gets into; Promote piston 5 to left movement, when piston 5 moves to inner right-hand member cannelure and distribution bar 4 radially during at least 3 long slot bores 23 UNICOMs of right-hand member, the rear gas chamber air distribution hole 18 entering impactor rear gas chamber driven plunger of compressed air on piston left end elongated slot move right; Hit bar front end impact bore bit 9 and carry out back and forth movement;, hit bar 20 and temporarily throws off, during at piston 5 so that calming the anger through hole 15 discharge outer tube cavity of resorptions with the hole 15 on the fairlead 6 to left movement; This calms the anger provides row's landwaste air quantity by 15 entering bore bits, 9 inside, hole, till piston 5 hits bars and its sealing.Length in the impactor motion process on the distribution bar 21 is blown nozzle 22 and is constantly being calmed the anger through the work of the inner participation discharge of piston 5 central through holes entering bore bit landwaste by its hole 24 discharges.

Claims

1. an impactor comprises bore bit (9), distribution bar (4) and piston (5); It is characterized in that: also comprise front connector (7), back joint (1), outer tube (13) and fairlead (6); Said back joint (1) is connected with outer tube (13) one ends by means of steel-wire screw-socket (12); Said fairlead (6) is connected with the other end of outer tube (13) by means of steel-wire screw-socket (12), and said front connector (7) is connected with the other end of said fairlead (6) by means of steel-wire screw-socket (12); Said bore bit (9) is connected with said front connector (7) with spacing steel ball (8) by means of back-up ring (10); Said distribution bar (4) rear end is fixedly connected with back joint (1) by means of distribution lever lock female (2).

2. impactor according to claim 1; It is characterized in that: said back joint (1) endoporus is the ladder screw thread; Itself and outer tube (13) link are provided with inside snap ring, and said distribution bar (4) passes the snap ring setting and is connected with joint screw thread by means of the distribution lever lock female (2) with back joint (1) inner hole thread cooperation.

3. impactor according to claim 1 and 2; It is characterized in that: said piston (5) comprises gas distribution section (19) and hits bar (20) that gas distribution section (19) is made as one with strike bar (20) and said strike bar (20) open end cooperates with said fairlead (6) slipper seal.

4. impactor according to claim 3 is characterized in that: said outer tube (13) endoporus is the through hole of unified diameter.

5. impactor according to claim 4 is characterized in that: said outer tube (13) outer wall is provided with the dismounting bayonet socket.