SU1657584A1 - Hydraulic hammer - Google Patents

Abstract

The invention relates to mining. The purpose of the invention is to increase the efficiency of the hydraulic hammer (Q by additional beneficial use of a part of the energy of the fluid flow during the working cycle. For this, T includes the lower spline 1 and the upper 16 adapters and the hollow cylindrical body 17, inside of which is a spring valve (K) B) 4 with spring 5 and anvil 3. In the striker (B) there is a through axial channel,

Description

The invention relates to mining, namely to direct impact hydrostatic machines, which are widely used in drilling geological prospecting wells.

The purpose of the invention is to increase the efficiency of the hydraulic hammer through the additional beneficial use of a portion of the energy of the fluid flow during the working cycle.

Figure 1 shows the hydraulic hammer, a longitudinal section; figure 2 - section aa in figure 1; on fig.Z - section B in figure 1.

The hydraulic hammer includes a splined adapter 1 and a splined sleeve 2, which together form a freely detachable splined coupling, an anvil 3, a hammer 4 with a spring 5, side channels 6, a hammer 7, a spring 8, a rod 9 of the hammer with a drainage channel 10, middle adapter 11 with the cuff 12, the valve 13 with the channels 14 and the spring 15, the upper adapter 16 and the housing 17.

Hydraulic hammer works as follows.

The hydraulic hammer is installed as part of the drill bit over the rock-breaking tool (for core drilling - over the core set) and in the initial position is in a suspended state, i.e. rock tool does not come into contact with the bottom of a well. In this case, the spline adapter 1 together with the head 4 goes down and forms a gap between the end of the rod 9 and the valve 13. When flushing fluid is supplied to the well, it passes freely through this slot and channels 6 and 14 to the bottom of the well. In order to turn on the hydraulic hammer, it is necessary to put a drilling rig at the bottom. As a result of this, the spline adapter 1, together with the brisk head, rises upwards, the articulation of the rod end occurs.

9 with a valve 13. The flow of fluid overlaps with the formation of a hydraulic impact pressure, which creates a force to move the rod 9 with the striker 4 and the valve 13 down. The striker accelerates with simultaneous compression of the power springs of the striker 5 and the valve 15 to return the striker and the valve to its original position. Acceleration of the striker continues on the Si segment to those

until valve 13 resists the middle adapter 11. Subsequently, the movement of the striker against the stop along the anvil 3 occurs by inertia with the loss of kinetic energy for additional compression of the striker spring

by S2.

The back of the bike and the valve is made under the force of compressed springs 5 and 15. At the top position, the articulation of the striker shaft 9 and the valve 13 occurs with an instantaneous stopping of the striker 4. At the moment of stopping the striker 4, the striking mass of the striker 4 and the striker 7 separate. upward movement, and transmits its kinetic energy to spring 8. There is a relative motion of the striker 4 and the striker 7. The secondary and subsequent strikes of the striker 4 on the anvil 3 are accompanied by an additional imposition of kinetic energy

drummer 7 with a speed of relative motion at the moment the drummer 7 reaches the stop in the striker 4. After the strike, the striker 4 and the drummer 7 again return to their original upper position, and the operation of the hydraulic hammer is repeated.

Claims (1)

The use of the proposed hydraulic hammer improves the efficiency of the hydraulic hammer and expands the field of application of percussion and rotational percussion drilling. Claims of the invention Hydraulics, including hollow cylindrical body, upper and lower splined adapter, spring loaded with channels for the passage of flushing fluid, a valve, a spring-loaded striker with a hollow rod in its upper part and an anvil, characterized in that, in order to increase the efficiency of the hydraulic hammer by additional beneficial use of part of the energy of the fluid flow during the working cycle, the hydraulic hammer is equipped with the striker is made through axial channel, communicating with the cavity of the rod, and the additional drummer is placed with the possibility of axial limited movement in the axial channel of the striker, while in the upper position it is spring-loaded relative to the rod, and in the lower position its movement is limited by a saddle made in the striker. FIG. 2 Bv Fig.Z