SU1398966A1 - No-anvil steam-air hammer - Google Patents

Abstract

The invention relates to mechanical engineering, namely to the construction equipment of forging and stamping equipment. The goal is to reduce labor intensity by reducing fluid leaks. A vertical steam-free Hammer contains a frame installed on the foundation with a working cylinder in its upper part and a hydraulic communication unit of the upper I and lower women in 1 bar. The upper cylinder is connected to the stem of the working cylinder and to the side plungers of the hydraulic assembly, and the lower one is connected to the central plunger of the hydraulic hydraulic assembly. The cross-section of this rod Q is equal to the total area of the side and central plungers. This ensures a decrease in stresses in the elements of the hydraulic system during the post-impact period. 1 il .. (L

Description

The invention relates to the field of engineering, namely to the design of forging and stamping equipment.

The purpose of the invention is to reduce the labor intensity of manufacturing and operating a hydraulic communication unit and improve the efficiency of the hammer by reducing fluid leakage.

The drawing shows a diagram of a smooth vertical hammer.

A vertical steam-free air hammer contains a frame 1, a drive 2, a top 3 woman 3 and a bottom woman 4, which are kinematically connected between

a nodraBLIC system consisting of a middle cylinder 5 and side cylinders 6 located in the housing 7 of the hydraulic communication unit and connected by channels 8,

The side plungers 9 are connected to the upper female by shock absorbers 10. In the bottom part of the housing of the hydraulic communication unit supported by the shoulders on the hammer frame, cylinder 11 is provided with a supporting rod 12. It is mounted on the base 13.

Hammer works as follows.

00 CD 00 F 05

When the energy carrier is injected into the upper, cavity of the working cylinder-2 of the top of Oab 3 and its associated side walls, the rods 9 are mixed downwards. The pressure that the lateral pistons 9 create in the lateral cylinders 6 displaces the liquid. the bone in the middle cylinder 5, as a result of which the lower baba 4 moves upwards before the impact with the upper baba 3, when the upper baba 3 moves downwards, and the Š1 of the trimmer 4 upwards in the housing 7 of the hydraulic communication unit, besides - Foamy inertia force of the bottom woman 4.

After the impact of the upper and lower women, the bottom 4 and some women (side plungers 9 under the action of

three stocks. Consequently, the leakage of a fluid that is prolordionally perimeter is also halved.

Thus, the proposed smooth vertical steam-air hammer is more economical to operate, less labor-intensive to manufacture.

The deviation of the cross-sectional area of the additional support rod by more than 10% of the nominal value in the direction of decreasing undesirable, and upward is unacceptable. In the first case, it increases. .- ..

In the second case, the load on the shoulders ja can occur. detachment of the body from the frame and moving it up along the axes of the plungers of the women, because in

inertial forces simultaneously moving 2D pressure in these cases

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thirty

35

downward, compressing the fluid in the housing 7 and increasing its pressure. Then miyiiDKe ry 9 moves up and the pressure in the housing 7 decreases. This change in pressure occurs in very small periods of time, i.e. dynamically, and causes mechanical oscillations in the hydraulic communication unit. But now the mechanical oscillations do not extend to the entire body of the hydrostatic assembly, but only to the rod 12, which is located in its bottom part. This is due to the fact that the side and central plungers, creating pressure on the body of the hydraulic communication unit, are acted upon.

reactive forces of compressed fluid, stre

You can push them out of the case upwards. And since the cross-sectional area

rod 12 is equal to the sum of the areas of the two side and central gushunzher, then it is exactly the same force, but in the opposite direction. This force presses the rotary stem to foundation 13, In the case itself, the pressure of the compressed fluid is uranium in any two opposite directions, and the case finds (in a state of rest, therefore, the shoulders perceive only their own weight and fluid filling its cavity - O

The perimeter of the seal of one supporting rod is almost two times less

versus total perimeter

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thirty

35

.

- ABOUT

40

45

inside the body stanon tsl-; Sheni mi in the vertical direction.

The economic effect of the implementer of the invention is achieved by reducing the labor intensity of manufacturing and operating the hydraulic communication unit and reducing the leakage of fluid.

Claims (1)

Invention Formula A non-striking vertical steam-air hammer containing a frame installed on the foundation with a working cy- tine in its upper part. the working cylinder and with the lateral plungers of the hydraulic communication unit, and the lower cylinder with the central plunger mounted in the bottom part of the hydraulic communication center with the central plunger an additional cylinder with a support rod, considered as its lower end with a foundation that differs in that, in order to reduce the laboriousness of manufacturing and operating a hydraulic communication unit and increase the efficiency of the hammer by reducing fluid leakage, the support rod is made with a cross-sectional area equal to the total area of the two side and central plungers. //