SU1448038A1 - Adaptor to drilling machine - Google Patents

Description

(21) 4091634 / 22-03. (22) 05.30.86 (46) 12.30.88. Bul Number 48

(71) Shakhty technological institute of consumer services

(72) Yu. E. Karaideev

(53) 622.233.52 (088.8)

(56) USSR Copyright Certificate No. 161016, cl. E 21 C 3.112, 1963.

USSR author's certificate number 619637. cl. E 21 C 3/08. 1977.

(54) ASSEMBLING TO THE DRILLING MACHINE

(57) The invention relates to the mining and construction industries. The purpose of the invention is to increase the safety of work and the reliability of the machine due to the automatic protection of the drive against overloads. The nozzle to the drilling machine includes a housing 1, in which the percussion mechanism is located in two cam coupling halves (PM) 2, 3. At the same time, PM 2 is spring-loaded 4, and PM 3 is connected to spindle 5 connected to tool 6. With spring-loaded PM 2 by means of an elastic element 7, an input shaft (BB) 8 is coupled. The shock mechanism is both a differential and a converter for the relative rotation of the BB 8 and the spindle 5 into shock pulses. The compression force of the PM 2 and 3 of the percussion mechanism is selected so that the percussion mechanism is activated at nominal load on tool 6. Then, when the nozzle operates in the mode with the percussion mechanism turned on, at any combination of rotation and shock, the torque on BB 8 will be limited to a nominal value. This provides automatic overload protection for the engine. 1 nl

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This invention relates to the mining and construction industry.

The purpose of the invention is to improve safety and increase the reliability of the drilling machine due to the automatic protection of the drive against overloads.

The drawing shows the proposed ny-sadka to the drilling machine.

The nozzle to the drilling machine includes case I, in which the percussion mechanism, made in the form of two cam-10 coupling half 2 and 3, is located, the coupling half 2 is spring-loaded 4, and the coupling half 3 is connected with. spindle 5, which in turn is connected with tool 6. By means of an elastic element 7, the input shaft 8 of the nozzle is connected with a spring-loaded cam half coupling 2. The input shaft 8 is connected by means of a Morse taper to the output drive shaft (not shown). The spindle 4 rests on the nozzle body 1 through rubber damping 6 at the same time yjiapiioe receives an axial force and a torque torque coinciding with the direction of rotation of the tool. Such a combined action of axial and rotary shock impulses significantly increases the efficiency of impact shear of fragile building materials, and, consequently, increases productivity in the development of these materials (for example, brick and concrete). The nozzle at this time operates in a mixed mode with the ratios of the rotation of the tool and the impacts on it, depending on the strength of the machine. material and the amount of free flow of the machine with a nozzle on the material.

The compression force of the coupling half 2 n 3 of the percussion mechanism is chosen so that the percussion mechanism switches on at nominal load on the tool 6. Then, when the nozzle operates in the mode with the percussion mechanism turned on, at any combination, the rotator 9 reduces the transmission of vibrations from 20 n and impacts to the input The shaft on the spindle to the housing and the packing will be limited to the nominal value of the drill bit on the drilling machine (excluding shock loads), which is as follows.

If the moment of resistance to rotation

provides an automatic transmission of the engine from overloads, which increases the value of the tool, at which 25 The reliability and the service life of the machine with the nozzle, as well as the range of diameters of the tool used. When maintaining with fragile materials of the nominal mode, which automatically installs after 1 axial axial force at the point of contact of the cams, is less than the force of the compressed spring 4, the cams are in engagement. The hammer-spindle system rotates as one with the speed of the input shaft 8, and

This also extends the range of diameters of the instrument used. Permanent maintenance during the work with fragile materials of nominal mode, automatically established after the first result, and the attachment works in a purely 30 percussive mechanism, improves the propulsive mode. If the moment of resistance to the rotation of the tool reaches a value at which the axial force at the point of the cam jaws compresses the spring 4 by an amount equal to the height of the jaws, the coupling halves 2 and 3 will come out of the engagement and 35 will be able to rotate relative to each other. Then, under the action of the spring 4, the half coupling 2 will apply to the coupling half 3, - associated with spindle 5, periodic shocks, the frequency of which depends on the distance from the spindle, which differs from those of the rotation speed of the input shaft 8 and that, in order to increase labor safety

And to increase the reliability of the machine by automatically protecting the drive against overloads, the nozzle is provided with an elastic element, through which the nozzle input shaft is coupled with a spring-loaded cam half coupling.

water content of the drilling machine with the proposed nozzle.

Claims (1)

Invention Formula The nozzle to the drilling machine, which includes the input shaft, the spindle with the tool, the cam impact mechanism, made in the form of two camshaft coupling, one of which is spring-loaded, and the second shaft 5. Thus, the impact mechanism is simultaneously a differential and a converter the relative rotation of the input shaft 8 and the spindle 5 into the shock pulses. In the collision of oblique 45 face cam planes tool 6 simultaneously receives yjiapiioe axial force and impact torque, which coincides with the direction of rotation of the tool. Such a combined action of axial and rotary shock impulses significantly increases the efficiency of impact shear of fragile building materials, and, consequently, increases productivity in the development of these materials (for example, brick and concrete). The nozzle at this time operates in a mixed mode with the ratios of the rotation of the tool and the impacts on it, depending on the strength of the machine. material and the amount of free flow of the machine with a nozzle on the material. The compression force of the coupling half 2 n 3 of the percussion mechanism is chosen so that the percussion mechanism switches on at nominal load on tool 6. Then, when the nozzle operates in the mode with the percussion mechanism on, at any combination of rotation and shock, the torque on the input shaft of the attachment will be limited to the nominal value (excluding shock loads) that provides an automatic engine overload against overloads, which increases the reliability and service life of the machine with a nozzle, as well as expands the range of diameters of the tool used. Constant maintenance during the work with brittle materials of nominal mode, automatically established after 1 in connection with the spindle, characterized in that, with the aim of improving the safety of labor water content of the drilling machine with the proposed nozzle. Invention Formula The nozzle to the drilling machine, including the input shaft, the spindle with the tool, the cam impact mechanism, made in the form of two cam half couplings, one of which is spring-loaded, and the second