DE2002945C - Coupling element for the upper and lower rams of a counter-blow hammer - Google Patents

Description

which now the individual steel bands of the coupling element are driven apart, but what by releasable clamps 14, 15, which press the steel strips tightly against each other by means of screws will. The terminals 14, 15 shown in the embodiment of the invention are each through formed a pair of profile bars. In order to prevent the clamps from sliding on the steel straps between the clamps and the steel bands each rubber inserts 16,17 arranged.

For this purpose L sheet drawings

Claims (1)

1 2 a case that is increased by the pressing force of the roller Claim: have to take up stung. It was only the suggestion that the steel belts of the coupling element for the upper and lower bracing element should pass through when a counterblow hammer is closed, in which the coupling pulley formed by the adjacent steel belts between the clamping point on the lower brace and the steel belts lying on top of one another ei. «Replacing the steel winding element from a clamping point on the upper rod brought a significant improvement over a pulley to the clamping point on the arm, through which the swinging of the individual steel belts under the lower rod is guided, characterized by the fact that the hammer is prevented from working Adjacent steel bars. However, the disadvantage of this design is that the connection between the rod and the steel belts causes the tensile strength of the coupling point (13) on the lower frame to weaken when the bars are closed. 4) and the deflection elements, so that, in order to increase life Roll (11) resulting area at least in one, to achieve a permanent cross-sectional enlargement, preferably in two to three places by means of releasable 15 is necessary. Another disadvantage of this solution rer clamps (14, IS) are held together. must be seen in the fact that it must already be taken into account when designing the hammer. Existing hammers can n _u : .with greater effort and greater costs correspondingly to be built. The invention is therefore based on the object of eliminating these deficiencies and a coupling element to create that in a simple way; e and The invention relates to a coupling element for a significant increase in the at low cost the upper and lower bears of a counter-blow hammer, as guaranteed, with above all already where that before. Adjacent steel strips operable counterblow hammer without difficultly formed The coupling element is provided with these coupling elements by its clamping elements on the upper ram via a pulley to unite. tension point is made on the lower ram. Starting from a coupling element for the Since with the usual counter-hammer, only the upper and lower ram of a counter-hammer is driven, the counter-movement is the type described at the beginning, the invention soldered that of the lower-hammers with the help of a pulley task in that the steel ledges lying against one another, connecting the upper ram with the lower ram, straps of the coupling element reached in one of the coupling elements. This coupling-closed beam between the clamping point on the element usually consists of around twenty to 35 lower beams and the area resulting in the deflection roller of thirty steel strips lying next to one another. Work stoppages often occur at at least one, preferably at two to three places where such belt-coupled counterparts are operated. Keeping the individual steel straps together, as one or more steel straps break. The clamps result in greater flexural strength - in addition to the cost of new straps, there is a 4 ° speed of a coupling element and also prevents the loss of work caused by the breakage through undesired movements, so that a significantly noticeable, so that an increase in the life tend to have a longer service life. The steel belt service life of these steel belts is also of great importance - they can no longer be driven apart. It has therefore been proposed that no dust can settle between them and that the individual steel belts should be lubricated. Breakage 45 the risk of breakage is significantly reduced. It shows itself to be preventive and to increase the service life. In Jcr, therefore, that with the solution according to the invention all practice has shown that advantages of a tie rod connection can be achieved with this measure no significant extension of life can without their disadvantages occurring,
can be achieved permanently. In the drawing, a counter-blow hammer is shown in the steel belts when striking together the 5 ° partial section with an embodiment of the invented bear between the pulley and the clamping element according to the invention,
put apart on the lower bear, see that the dust whirled up in the guides 2, 3 provided in frame 1 during impact in the intermediate slides of the upper and lower bear. On the main part 4 space of the driven apart steel belts and 6 of the lower and upper bear are each long. This dust forms in connection with the 55 dies 5 and 7 respectively. The upper bear 6 becomes a real "grinding paste" as a lubricant. It is pneumatically driven via pressure lines 8, 9, so there are break points which do not lead to the highest coupling element 10 through deflecting stresses on the steel belts. roll 11 from the spring-loaded clamping point 12 of the In recognition of these facts, the upper bear has already been hit to the corresponding clamping point 13, one with a certain advance 60 of the lower bear. The coupling element 10 is formed from a tension force against the steel belts by rolling a plurality of steel belts, of which there are to be provided, only three of which are indicated because of the lifting of the individual steel belts. In the character intended to prevent each other in order to increase the lifespan, the bears are shown in an open position. Will now increase the steel belts. The constructive guidance of such rollers, driven by the pressure lines 8, is, however, with a relatively high 65 and moves downwards, so is connected by means of the coupling costs without the need for an essential advancement element 10 that slides over the deflection roller 11 is achieved because, in order to lift the steel, the lower ram 4 moves against the upper ram, to prevent hands from each other, the steel belts.