EA028917B1 - Electromechanical perforator of percussion-rotary action - Google Patents

Abstract

The object of the invention is to increase reliability and impact energy of the proposed electromechanical perforator. The invention is aimed at improvement of the operational performance of the perforator, the percussion-rotary action of which is based on the use of S. Abdraimov's leverage impact mechanism of variable structure with a leverage rotary mechanism, where the rotary mechanism includes a crank-and-rocker and ratchet mechanisms. The task is solved by the fact that in the design of the electromechanical perforator two crank-and-rocker mechanisms with different kinematic parameters ensure operation of impact and rotary mechanisms. The coordinated movement of the elements of the impact and rotary mechanisms serves as a condition for achieving required technical and operational parameters of the perforator. Due to high efficiency of the crank-and-rocker impact mechanism of variable structure, the energy of a single impact increases.

Description

DESCRIPTION OF THE INVENTION TO THE EURASIAN PATENT

(45) Date of publication and issuance of the patent 2018.01.31

(21) Application Number

201501118

(22) Filing date

2015.11.23

(51) Ιπί. C1. Β25Ώ16 / 00 (2006.01) 25Ώ 11/06 (2006.01) 21Β 6/06 (2006.01)

(54) ELECTROMECHANICAL PUNCH OF SHOCK-AND-ROTARY ACTION

(43) 2017.05.31 (56) I8-A1-20130161043

(96) EAPO / COP / 201500006 (COP) 2015.11.23 C "sh" 79484

(71) (72) (73) Applicant, inventor and patent holder:

ABDRAIMOV EMIL SAMUDINOVICH; ABIDOV ABDYKADYR OMAROVICH;

ABYTOV ALMASBEK AHUNZHANOVICH; ISMANOV OMURBEK MARIPZHANOVICH (KS)

(57) The objective of the invention is to increase the reliability and impact energy of the proposed electromechanical perforator. The invention is aimed at improving the technical and operational parameters of the perforator, the impact-rotational action of which is based on the use of a lever impact mechanism of variable structure C. Abdraimov with a lever action mechanism, where the action mechanism includes a crank-beam and ratchet mechanisms. The task is solved by the fact that in the design of an electromechanical perforator two crank-beam mechanisms with different kinematic parameters ensure the operation of the percussion and turning mechanisms. The coordinated movement of the elements of the percussion and turning mechanisms serves as a condition for achieving the required technical and operational parameters of the perforator. Due to the high efficiency of the flange mechanism of a variable structure, the energy of a single impact increases.

028917 Β1

028917 Β1

028917

The rotary perforator is designed for drilling and drilling holes, punching furrows in concrete, masonry and other materials. The puncher is widely applied both to construction and to other metalwork and repair work.

Shock-turning action is implemented by the joint work of the shock and turning mechanisms.

Known electromechanical percussion punching action with a cam impact mechanism of variable structure (D.M. Yarunov "Cams of variable structure" - Irkutsk. Irkutsk State University, 1986, 160 p.).

In addition, the industry widely produces perforators with compression-vacuum impact and rotational mechanisms.

The compression-vacuum impact mechanism includes a crank mechanism consisting of a crank, a connecting rod, a cylinder in which the piston and the head moves (Dobronravov S.S. Construction Machinery and Equipment: A Handbook for building, special universities and engineering. technical workers. "M .: Higher School., 1991, p. 418, 419).

The disadvantage of these devices is a relatively complex structure, low reliability due to the low resource life of the springs present in the design of the cam punch, and low efficiency due to the rapid wear of the sealing surfaces of the vacuum-compression perforator.

In the proposed perforator, the hammering action implements a lever mechanism of variable structure. The prototype for the lever shock mechanism of variable structure can serve as patent No. 1353 КS "Manual rammer with the mechanism of variable structure", Bull. № 4 dated 04.29.2011

The objective of the invention is to increase the reliability and impact energy of the proposed electromechanical perforator.

The invention is aimed at improving the technical and operational performance of the punch, the impact-turning action of which is based on the use of a lever shock mechanism of variable structure with a lever-turn mechanism, where the turn mechanism includes a crank-shaft and ratchet mechanisms.

FIG. Figures 1 and 2 show the kinematic and constructive schemes of an electromechanical perforator, in which the operation of a lever shock mechanism of variable structure together with a lever rotary mechanism creates a shock-rotary action. The design of the electromechanical perforator has the following components and mechanisms: a drilling tool, a universal collector motor, a gearbox, a shock unit, an axle box, a turning mechanism. The impact unit is a hinged four-link mechanism of Samudin Abdraimov’s crooked-shaft type variable mechanism with the largest connecting rod, where the rotational motion of the armature of the engine 1 is transmitted through gears 2, 4 and the bevel gear 5 of the impactor. The rotational movement of the crank gear 6 through the crank 7 is converted into swinging movement of the rocker arm – striker 8. The rocker arm 8 max accelerates forward, making a working stroke, and strikes the end of the waveguide 9 at the time of alignment of the links in one line; then moves back to the rearmost position, idling. The shock wave passing through the waveguide 9, is transmitted to the drilling tool 10 and from it to the processed medium.

Percussion knot punch works in conjunction with a rotary mechanism (Fig. 1 and 2) as follows. In the gearbox gear 4 interacts with the gear 11, which by means of the keyed connection rotates the crank shaft 12 of the crank-and-beam steering mechanism. The rotation of the crank shaft 12 by means of the connecting rod 13 is converted into rolling of the rocker arm 14, which is also the body of the ratchet mechanism, inside which the pawns are mounted, which act through the barrel on the rotation of the drilling tool. When rolling back the rocker arms 14, the dogs do not act on the barrel, so the drilling tool does not rotate.

The parameters of the crank-beam mechanism of rotation are selected so that the ratchet mechanism rotates the drilling tool 10 at the technologically necessary angle. Moreover, the gearing of the gears 4 and 11 is adjusted so that the stroke of the ratchet mechanism occurs when the rocker-striker 8 moves back after the collision with the waveguide 9, making idle. This setting of the joint operation of the mechanisms of impact and rotation allows you to distribute the load on the universal collector motor perforator.

Claims (2)

CLAIM 1. Electromechanical percussion rotary hammer drill consisting of a drilling tool, a universal collector motor, a gear reducer, a percussion mechanism of variable structure and a rotary mechanism including a crank-beam and ratchet mechanisms, characterized in that the rotary mechanism contains a rotatable gear of the gear reducer crank shaft, whose rotation by means of a connecting rod is converted into rolling of the rocker arm, which is also the body of the ratchet. 2. The puncher according to claim 1, characterized in that the gearing gear reducer is made so that - 1 028917 the rotary mechanism begins to affect the drilling tool immediately after the impact of the yoke on the waveguide and ceases to act when the yoke is in the rearmost position, completing the idle.