CN2200517Y

CN2200517Y - Electric tool

Info

Publication number: CN2200517Y
Application number: CN 94205659
Authority: CN
Inventors: 范姜渭川; 薛学位
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-30
Filing date: 1994-03-30
Publication date: 1995-06-14
Anticipated expiration: 2004-03-30

Abstract

The utility model relates to an electric tool for drilling holes which belongs to the improvement of the structure of the existing device with control functions of drilling and hammering. The utility model is composed of an adjusting ring, a fluted disc, a shaft sleeve, a thrust bearing, a spring, a clamping body, etc. The drilling function and the hammering function are controlled and realized through whether convex teeth arranged on the back end of the clamping body falls into a groove arranged on the front end face of the ring sleeve. Compared with the prior art, the utility model has the advantages of novel design, simple structure, reasonable structure, convenient use, low cost, etc.

Description

Electric tool

The utility model is a kind of electric tool that is applicable to boring, and it relates to controlling the improvement on the apparatus structure that bores and hammer into shape these two kinds of functions.

At present, the version that has the function of brill in the electric tool can be referring to shown in the accompanying drawing 1, it mainly is made up of motor 11, power transmission shaft 10, driving sleeve 12, is equipped with in addition to adjust ring 13, liner 14, torque spring 15 and pad 16 to reach the purpose of the torsion of adjusting power transmission shaft 10 on power transmission shaft 10.When brill hits very hard object, need when boring, to increase the impact of drill bit, now, the existing electric tool that integrates these two kinds of functions, but its complex structure, difficulty of processing is big, the cost height needs torsion is controlled by different devices with impacting branch, so use inconvenience.

The purpose of this utility model is to design at above-mentioned deficiency and provides a kind of and novel will bore and hammer into shape this two kinds of control device that function is integrated in one, and it is simple in structure, and is reasonable in design, easy to use.

The purpose of this utility model reaches by following measure, this electric work instrument, it comprises power transmission shaft, motor and the driving sleeve and the packing ring that constitute by driving gear set, parts such as torque spring, in addition, also being set with a control on the power transmission shaft bores, the device of two kinds of functions of hammer, it is characterized in that: this device is by adjusting ring, fluted disc, axle sleeve, thrust bearing, parts such as spring and fastening convex side are formed and all are set on the power transmission shaft, wherein adjust ring inside one link is arranged, there is the rank shape tooth of sectional-regulated torsion the rear end of link, liner is connected with a joggle with it, its front end has a ring set, the front end anchor ring of ring set has corresponding groove and scallop hole, with fastening convex side, spring, thrust bearing, fluted disc and axle sleeve are set on the power transmission shaft successively, the fastening convex side rear end face has double wedge, can and adjusting rotation adjustment between the ring makes it fall into groove on the ring set, both ends of the spring supports respectively on the inner flange that terminates in fastening convex side and on the end face of thrust bearing, fluted disc is mounted on the front end face of link, is processed with several teeth groove on the front end face of fluted disc.It passes hole on it by screw and passes scallop hole again and be fixedly connected on the driving sleeve, the other end of thrust bearing is supported and is terminated on the flange of axle sleeve inside, and the rear end face of axle sleeve 5 has some slip teeth correspondingly with the teeth groove on the fluted disc to coincide, at last, the external screw thread of protecgulum screws with the fixed conveyor axle with the internal thread of adjusting the ring front end and is installed on the position of adjusting each parts in the ring.

The drawing of accompanying drawing is described as follows:

Fig. 1 is the structural representation of existing electric tool;

Fig. 2 is the utility model Design Plans;

Fig. 3 is the utility model STRUCTURE DECOMPOSITION schematic diagram;

Fig. 4 is the utility model structure cut-away view;

Fig. 5 is the structural representation of the utility model adjustment ring;

Fig. 6 implements the position view of impact function for the utility model;

The utility model is described in further detail below with reference to drawings and Examples.

Shown in accompanying

drawing

2,3, comprise power transmission shaft 20 in the utility model structure, assemblies such as the driving sleeve 22 of motor 21 and interior dress driving gear set, packing ring 25, torque spring 24, liner 23, in addition, also fixedly mount on the power transmission shaft 20 and one integrate brill, impact the control device and the front end anchor clamps 27 of two kinds of functions.Technical characterictic of the present utility model is that this control device is made up of parts such as adjusting ring 3, fluted disc 4, axle sleeve 5, thrust bearing 6, spring 7, fastening convex side 8 and protecgulum 9, and they are that axle sleeve is adorned thereon with power transmission shaft 20 all.

Structure of the present utility model and installation site are referring to shown in the accompanying

drawing

3,4,5, adjusting ring 3 is a hollow cylinder, there is link 30 its inside, the rear end of link has the rank shape tooth 35 of sectional-regulated torsion to be connected with a joggle with liner 23, its front end has a ring set 31, power transmission shaft 20 can be passed in the centre, and the front end anchor ring of ring set 31 has corresponding trapezoidal groove 32 and the scallop hole 33 that be.Fastening convex side 8, spring 7, thrust bearing 6, fluted disc 4 and axle sleeve 5 are set on the power transmission shaft 20 successively, wherein, fastening convex side 8 rear end faces have double wedge 82, can and adjusting rotation adjustment between the ring makes it fall into groove 32 on the ring set 31, spring 7 two ends are supported respectively on the inner flange 80 that terminates in fastening convex side 8 and on the end face of thrust bearing 6, fluted disc 4 is mounted on the front end face of link, is processed with several teeth groove 41 on the front end face of fluted disc 4.It passes hole 42 on it by screw 28 and passes scallop hole 33 again and be fixedly connected on the driving sleeve 22, the other end of thrust bearing 6 is supported and is terminated on the flange 51 of axle sleeve 5 inside, and the rear end face of axle sleeve 5 has some slip teeth 50 correspondingly with the teeth groove 41 on the fluted disc 4 to coincide, at last, the external screw thread of protecgulum 9 screws with fixed conveyor axle 20 with the internal thread of adjusting the ring front end and is installed on the position of adjusting each parts in the ring.There is dry hole 91 at protecgulum and the screw thread place that adjusts between the ring 3, can screw in anti-loose for screw 92.In addition, fastening convex side 8 outsides have the chute 43 on the centre bore sidewall of some slide blocks 81 and fluted disc 4 to be meshed to fix the position between two parts.

Below will sketch transmission agency of the present utility model, 1. when the double wedge 82 of fastening convex side 8 rear ends is resisted against on the front end face of the ring set 31 of adjusting ring 3, and making fluted disc 4 and axle sleeve 5 be the relative separation state, electric work tool drive shaft 20 only can rotate and was the function of use of brill this moment.Shown in accompanying drawing 6, when adjustment ring 3 rotates to the acrotorque position, the double wedge 82 of fastening convex side 8 rear ends will fall into the groove 32 of ring set 31 front end faces of adjusting ring 3, fastening convex side 8 is then moved because of the pressure of spring 7, drive axle sleeve 5 and move after also corresponding, and make 41 corresponding being abutted against of teeth groove of slip teeth 50 and fluted disc 4 front end faces on it, when power transmission shaft 20 rotates, drive the slip teeth 50 slippage vibration on the teeth groove 41 on fluted disc 4 front end faces on the axle sleeve 5, make power transmission shaft 20 produce impulsive force.

The utility model compared with prior art has modern design, simple and reasonable for structure, easy to use, the advantage such as cost is lower.

Claims

1, a kind of electric work instrument that is used to hole, it comprises power transmission shaft 20, parts such as motor 21 and the driving sleeve 22 that constitutes by driving gear set and packing ring 25, torque spring 24, in addition, also be set with a control on the power transmission shaft 20 and bore, hammer into shape the device of two kinds of functions, it is characterized in that:

This device is by adjusting ring 3, fluted disc 4, axle sleeve 5, thrust bearing 6, parts such as spring 7 and fastening convex side 8 are formed and all are set on the power transmission shaft 20, wherein adjust ring 3 inside one link 30 is arranged, there is the rank shape tooth 35 of sectional-regulated torsion the rear end of link, liner 23 is connected with a joggle with it, its front end has a ring set 31, the front end anchor ring of ring set 31 has corresponding groove 32 and scallop hole 33, with fastening convex side 8, spring 7, thrust bearing 6, fluted disc 4 and axle sleeve 5 are set on the power transmission shaft 20 successively, fastening convex side 8 rear end faces have double wedge 82, can and adjusting rotation adjustment between the ring makes it fall into groove 32 on the ring set 31, spring 7 two ends are supported respectively on the inner flange 80 that terminates in fastening convex side 8 and on the end face of thrust bearing 6, fluted disc 4 is mounted on the front end face of link, is processed with several teeth groove 41 on the front end face of fluted disc 4.It passes hole 42 on it by screw 28 and passes scallop hole 33 again and be fixedly connected on the driving sleeve 22, the other end of thrust bearing 6 is supported and is terminated on the flange 51 of axle sleeve 5 inside, and the rear end face of axle sleeve 5 has some slip teeth 50 correspondingly with the teeth groove 41 on the fluted disc 4 to coincide, at last, the external screw thread of protecgulum 9 screws with fixed conveyor axle 20 with the internal thread of adjusting the ring front end and is installed on the position of adjusting each parts in the ring.

2, electric tool according to claim 1 is characterized in that: fastening convex side 8 outsides have the chute 43 on the centre bore sidewall of some slide blocks 81 and fluted disc 4 to be meshed to fix the position between two parts.

3, electric tool according to claim 1 is characterized in that 32 liang of walls of ring set 31 front end face grooves all are skewed.

4, electric tool according to claim 1 is characterized in that there is perforate 91 at protecgulum 9 and the screw thread place that adjusts between the ring 3, can screw in anti-loose for screw 92.