SU1564270A1 - Hydraulic hammer - Google Patents

Abstract

The invention relates to construction machines, namely to hydraulic hammer designs, and can be used for sinking piles, foundation pyramids, tongue, loosening and compacting soils, etc. works The purpose of the invention is to increase the durability of the hammer by ensuring the sustainability of its operation. Hydrohammer contains shock part 1, in the cavity of which is placed the plunger 2, rigidly connected to the valve 3, made with the main 5 and an additional shut-off 6 elements. The locking element 6 is fixed on the lower end of the rod 7, which is spring-loaded relative to the impact part 1. Valve body 3 is placed in the headgear 10 and is spring-loaded relative to it. By eliminating the impact of the plunger on the closure element, the durability of the hammer is increased. The process of opening and closing the valve is elastic. The presence of an additional locking element reduces the opening force of the valve. The work of the hammer becomes smooth, stable. 1 il.

Description

The invention relates to construction machines, in particular to the design of hydraulically driven hammers, and can be used to sink piles, tongue, compact and loosen the soil, etc. works

The purpose of the invention is to increase the hammer durability by ensuring the sustainability of its operation.

The drawing shows the structural scheme of the hammer.

Hydrologist includes shock part

1, in the cavity of which the plunger is placed

2, rigidly connected to the valve 3. In the bore of the valve body 3 a spring-loaded spring 4 is placed on the locking element 5 with an additional locking element 6 located inside the main and serving to limit

 The shutter element doesn’t have a cover 7. The plunger 2 is threaded about, the lower end of which is connected to the additional locking element 6, and the upper one with the help of the spring 9 can interact with the impact part 1. The valve 3 is placed in the cap 10 and is spring-loaded relative to it. The pressure head 11 and the drain 12 of the line are connected to the valve body 3. Pressure pipe 11 through the holes 13 and 14 is connected with the cavity of the shock part 1, and through the hole 15 can be connected to the drain line 12.

Hydraulic hammer works as follows.

In the initial position, the shock part 1 is resting on the vocabulary 10. The additional locking element 6, and with it the locking element 5 under the action of the spring 9 is in the lower extreme position, i.e. the cavity of the shock part 1 is connected to the pressure line 11.

The energy carrier on the pressure line 11, the holes 13 and 14

five

0

five

0

0 5

0

five

enters the cavity of the impact part 1 .. Under the action of the energy carrier, the impact part rises, and the locking elements 5 and 6 are pressed against the seats. In the upper position, the impact part 1 acts on the thrust 8, lifts the additional locking element 6 up to the stop in the cover 7. In this case, the pressure line 11 and the cavity of the impact part 1 are previously connected to the drain line 12 by means of the holes 15.

The pressure in the cavity of the shock part 1 decreases, reducing the impact of a (aporny element 5. Moving further up by inertia, the shock part raises the locking element 5, increased the flow area at which the cavity of the shock part 1 and the pressure line 11 has already completely changed - cinches with the drain line 12. The pressure in the cavity of the shock part I and the pressure line 1 decreases to the pressure of the drain. As a result, the shock part 1 after a stop in the upper position under the action of gravity moves downward, striking the headgear 10 In the lower position, the impact part 1 with the help of springs 9, acting on the pull 8, moving the additional locking element 6 downwards and overcoming the force of the spring 4, returns the locking element 5 to the initial position, at which the pressure line 11 is again disconnected from the drain line 12 and connects to the cavity of the impact part 1, i.e. the cycle repeats.

Claims (1)

The hydraulic hammer has several advantages. The direct effect of the plunger on the locking element has been eliminated, since the thrust control valve operation is spring-loaded relative to the impact part. In addition, at the moment of impact, the valve closes by fitting the closure member on the conical seat. This will give JMOHCHOCI a longer life for the hydraulic power unit. The process of opening and closing the valve is carried out in an elastic manner, independent of the stroke position of the hammer part. This eliminates the stiffness of the impact of the locking element on the saddle and prevents its destruction. The presence of an additional locking element reduces the opening force of the valve. This eliminates peak pressure drops in the process of opening the valve. The work of the hammer becomes smooth and steady. Invention Formula Hydraulic hammer containing shock, working cylinder with a plunger, nronyiiif HHyii him i i, ionic with after. no p yt laijoiru shm,. j 4,1 ,, case, pan, pressure head and DRAIN magnetizer, head-piece, special designation, due to the fact that its longness of the hammer increases its stability ciu valve is an additional locking element placed inside the main and t mounted at the lower end, which is installed with limited movement along the valve and is spring-loaded with the upper end relative to the impact part, and the valve body is located on: o, olpik, spring-loaded relative to uui and rigidly connected to the plunger. Editor I. Casard Order 1143 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101 Compiler Y, Zabolotska Tehred L.OliynykKorrektor T.Paly Circulation 540 Subscription