CN2462063Y

CN2462063Y - Hand-held electrical, pneumatic rock drill

Info

Publication number: CN2462063Y
Application number: CN 00244798
Authority: CN
Inventors: 李学东; 敖忠裕
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-27
Filing date: 2000-10-27
Publication date: 2001-11-28
Anticipated expiration: 2010-10-27

Abstract

The driving tooth 3 of the motor shaft 2 of the motor 1 of the utility model is meshed with three planet teeth 4, and the outer edges of the planet teeth 4 are meshed with an inner tooth sleeve 5 of a flange casing 11. A set of spiral lift sleeve pairs 6 are inserted in the inner tooth sleeve 5, and both ends of the arm of a vertical rotary arm 7 are placed on the surface of the guide rail of the spiral lift sleeve pairs 6. The vertical rotary arm 7 is connected with the center shaft 8 of the rotary arm, a straight tooth 9 and the sliding sleeve 10 of the straight tooth are arranged outside the center shaft 8 of the rotary arm, a piston 15 which is provided with a piston ring 16 is installed outside the middle part of the center shaft 8 of the rotary arm, and the other end of the center shaft 8 of the rotary arm is contacted with a drilling rod 19. A three-way valve 17 of a casing 14 is communicated with the middle neck part and the small neck part of the casing 14 through holes. The utility model has the advantages of simple structure, compact structure, convenient manufacture, convenient installation, low cost, convenient use, large impact force, energy resource saving, etc., and noise can be reduced effectively.

Description

Hand-held electricity, gas hammer drill

The utility model relates to the hammer drill that a kind of mine excavation industry and building, highway, bridge foundation jewel hole use, and especially shows it is hand-held electricity, gas hammer drill.

To the digging or the drilling of ragstone, adopt hand-held drifter to have two kinds, air rock drill and diesel rock frill at present.The air rock drill disadvantage is power consumption, and general minimum hammer drill also needs the 15KW air compressor machine, 2.5 meters of gas production ³/ minute more than could drive a hammer drill, big even want 30KW internal combustion air compressor machine to drive, noise is big, in order to keep the great power needs of hammer drill, generally all use the assembly of large-sized diesel air compressor machine to close in the construction simultaneously, more cause noise and oil consumption to increase, particularly urban construction is subjected to great restriction, and diesel rock frill, it is big to exist volume, complex structure, power is little, perishable, the life-span is short, and common engineering does not all adopt.In the patent disclosure of number of patent application 98109766 " a kind of hammer drill ", still have above-mentioned deficiency.

The purpose of this utility model provides a kind of simple in structure, utilizes motor to rotatablely move and becomes rectilinear motion, makes the compressed air in the plunger shaft compress and rotate in the backhaul process, then the hand-held electricity of abrupt release sinker bar, gas hammer drill.

The purpose of this utility model be realize like this include the electric electromechanics arbor, drilling rod, the pricker card, it is characterized in that flange shell one end connects motor, the other end connects shell, the motor shaft of motor passes cylindrical circular flange shell center driving tooth is installed, driving tooth and three planet teeth engagements that are installed at the bottom of the flange thimble, the outer rim of three planet teeth and the tooth engagement that is contained in the internal tooth casing in flange shell one end, the other end of internal tooth casing to middle part inwall is embedded with the spiral lift cover pair of 180 ° of one group of symmetrical reverse mutually, be placed with the arm two ends of the vertical pivoted arm that is the T type on the guide pass of spiral lift cover pair, vertical pivoted arm connects the pivoted arm central axis, one end of pivoted arm central axis has straight-tooth outward, straight-tooth inserts and is fixed in the straight-tooth sliding sleeve of shell, the straight-tooth sliding sleeve has plane bearing outward, plane bearing one end face contacts with the end face of internal tooth casing, the other end is placed on the bottom, big neck the inner of T-shaped shell, one end of straight-tooth sliding sleeve is pushed down the oil sealing support that has sealing ring in the middle neck that is embedded in shell, the piston of band piston ring is installed outside the middle part of pivoted arm central axis, the other end contacts with drilling rod, device has three way cock outside the middle part of shell, three way cock is respectively with neck is porose communicates and little neck is porose communicates in the shell, and head with holes spool is arranged between the little neck inwall of shell and the pivoted arm central axis.

Its operating principle of the utility model is, at first connect power supply and air compressor, during motor energising rotation, driving tooth is also along with rotation, and drive planet tooth and internal tooth casing rotation, be placed on the internal tooth casing inwall and be embedded with that vertical pivoted arm also slides on the secondary guide pass of spiral lift cover, the pivoted arm central axis that has straight-tooth, piston that the other end of vertical pivoted arm connects also up moves thereupon, and this just finishes first drawback movement; When pivoted arm central axis drive piston up moves, the air that is transported by air compressor is through three way cock, in the shell in the porose inflow piston of the neck compression chamber, along with piston up moves, by means of neck place in the piston outer arm can, stop air feed, at this moment piston up moves, piston compression chamber compressed air further compresses, its pressure rises sharply to several times, when sliding into the top dead centre of spiral lift cover pair on the vertical pivoted arm, and compression ratio maximum in the plunger shaft, the energy of savings is also maximum, vertical pivoted arm dropped down suddenly by the moment of top dead centre, and compressed air discharges suddenly, with vertical pivoted arm, the pivoted arm central axis, piston one is got impatient poly-to the impact of drilling rod afterbody, and this just finishes second stroke movement; When the pivoted arm central axis that straight-tooth is arranged that simultaneously vertical pivoted arm connects up moves, insert in the fixing straight-tooth sliding sleeve straight-tooth also along with on move, when vertical pivoted arm reaches top dead centre, the lower end of straight-tooth breaks away from the restriction of straight-tooth sliding sleeve and rotates forward, vertical pivoted arm moment landing downwards suddenly this moment, be subjected to the secondary rotation of spiral lift cover, turn over to insert again behind the tooth position and fix in the straight-tooth sliding sleeve of the second tooth position, whenever make a round trip, promptly rotate a tooth, make drilling rod not stop conversion drill bit internal position, this just finishes the 3rd gyration; Shell is equipped with the three way cock configuration outward supplies with the certain compressed air of the interior injection of neck inner carrier compression chamber in the shell, supply with simultaneously in the little neck of shell, through the hole of head axle, the centre bore of passing to drilling rod blows down landwaste to drill bit, the assurance engineer operation is carried out smoothly, and Here it is finishes the 4th distribution campaign.Above-mentioned motion repeats, and goes round and begins again and carries out.

Owing to adopt technique scheme, the utlity model has simple and compact for structurely, fabrication and installation are convenient, and cheap, easy to use, impact force is big, and can effectively reduce characteristics such as noise and energy conservation.

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the utility model sectional structure schematic diagram;

Fig. 2 is the A-A view structure schematic diagram of Fig. 1;

Fig. 3 is the B-B view structure schematic diagram of Fig. 1.

Among the figure: 1-motor 2-motor shaft 3-driving tooth 4-planet tooth 5-internal tooth casing 6-spiral lift is overlapped the vertical pivoted arm 8-of secondary 7-pivoted arm central axis 9-straight-tooth 10-straight-tooth sliding sleeve 11-flange shell 12-plane bearing 13-oil sealing support 14-shell 15-piston 16-piston ring 17-three way cock 18-head axle 19-drilling rod 20-pricker card

As shown in Figure 1, on the motor shaft 2 of motor 1 driving tooth 3 is arranged, driving

tooth

3 and 4 engagements of planet tooth, internal tooth casing 5 engagements in the flange shell 11 that planet tooth 4 outer rims and motor 1 are connected with, internal tooth casing 5 inwalls are embedded with the spiral lift cover secondary 6 of 180 ° of a pair of symmetrical reverse, place vertical pivoted arm 7 on the guide pass of spiral lift cover secondary 6, vertical pivoted arm 7 connects pivoted arm central axis 8, straight-tooth 9 is arranged outside the pivoted arm central axis 8, straight-tooth 9 inserts and is fixed in the straight-tooth sliding sleeve 10 of shell 14, outside the straight sliding sleeve 10 that hangs down plane bearing 12 is arranged, plane bearing 12 respectively with the end face of internal tooth casing 5 and shell 14 big necks in end in contact, in the middle neck of shell 14 oil sealing support 13 is arranged, the middle part of pivoted arm central axis 8 is equipped with the piston 15 of band piston ring 16, the other end contacts with drilling rod 19, and shell 14 devices have three way cock 17, three way cock 17 respectively with shell 14 in porose the communicating of the porose and little neck of neck, head axle 18 and drilling rod 19 are arranged in the shell 14 little necks, and there is pricker card 20 shell 14 little neck outer ends.

Fig. 2, motor shaft 2 have driving

tooth

3 and 4 engagements of planet tooth, the internal tooth casing engagement in planet tooth 4 and the flange shell 11.

Fig. 3, vertical pivoted arm 7 connects pivoted arm central axis 8, outside the pivoted arm central axis 8 straight-tooth 9 and straight-tooth sliding sleeve 10 is arranged, and internal tooth casing 5 is arranged in the flange shell 11.

Claims

1. hand-held, the gas hammer drill, include motor (1), motor shaft (2), drilling rod (19), pricker card (20, it is characterized in that flange shell (11) one ends connect motor (1), the other end connects shell (14), the motor shaft (2) of motor (1) passes cylindrical circular flange shell (11) center driving tooth (3) is installed, driving tooth (3) and three planet teeth (4) engagement that is installed in flange shell (11) the tube end, the outer rim of three planet teeth (4) and the tooth engagement that is contained in the internal tooth casing (5) in flange shell (11) one ends, the other end of internal tooth casing (5) to middle part inwall is embedded with the spiral lift cover secondary (6) of 180 ° of one group of symmetrical reverse mutually, be placed with the arm two ends of the vertical pivoted arm (7) that is the T type on the guide pass of spiral lift cover secondary (6), vertical pivoted arm (7) connects pivoted arm central axis (8), one end of pivoted arm central axis (8) has straight-tooth (9) outward, straight-tooth (9) inserts and is fixed in the straight-tooth sliding sleeve (10) of shell (14), plane bearing (12) is arranged outside the straight-tooth sliding sleeve (10), plane bearing (12) one end faces contact with the end face of internal tooth casing (5), the other end is placed on the bottom, big neck the inner of T-shaped shell (14), one end of straight-tooth sliding sleeve (10) is pushed down the oil sealing support (13) that has sealing ring in the middle neck that is embedded in shell (14), the piston (15) of band piston ring (16) is installed outside the middle part of pivoted arm central axis (8), the other end contacts with drilling rod (19), device has three way cock (17) outside the middle part of shell (14), three way cock (17) communicates with little neck is porose with porose the communicating of the middle neck of shell (14) respectively, and head axle (18) with holes is arranged between little neck inwall of shell (14) and the pivoted arm central axis (8).