DE8506702U1 - Cone-spindle attachment - Google Patents

Description

- 2 cone spindle attachment

The innovation concerns a cone-spindle fastening for fastening moving spindles and cones, consisting of a cone, a spindle, cylindrical pins and an external fuse.

State of the art

For the fastening of the cone and spindle, two parts are generally used Rings and screw connections are used, which the cone in axial Maintain direction and are secured against loosening by a locking plate.

But there are also rigid arrangements of cone and spindle, as well as possible solutions with balls in the valve area.

The attachment should be designed so that the valve cone on the Spindle end is rotatably and securely attached, so that when the valve is closed or opened, a sliding movement between the cone and valve seat is avoided and thus the wear on the valve cone remains low. The valve cone should pass through sufficient Play with a given security have the opportunity to adjust when closing the valve seat to thereby the necessary To achieve tightness at the seat.

Disadvantages of the existing constructions are the high production costs, through high quality requirements and from that resulting complex manufacturing processes arise. The high quality requirements are necessary to enable the desired effect of a rotatable design between valve cone and spindle.

With the cone-spindle fastening with split ring and screw connection, a higher expenditure of time arises during assembly, especially if the tolerances are not adhered to during manufacture have been.

Description of the invention

The innovation is based on the task of a movable cone to be realized with relatively simple processing. In addition, there is easy assembly and disassembly of the cone, which is characterized by the fact that the fastening and securing are made from DIN parts or Zijkaufpi 1 s exist.

The simplicity of the design eliminates the need for high quality requirements on the production of the cone and the spindle, that is, the function does not depend on small tolerances, as with the conventional solution.

Furthermore, the innovation has the advantage that the users Assemble the cone-spindle attachment yourself with simple means and can dismantle. This means that costs can be reduced due to system downtimes. The fasteners (pins) can be purchased at short notice at any time. Besides, this is Variable security element (various security options). Overall, the operator becomes more independent.

In addition to the advantages mentioned above, the newly designed cone-spindle fastening offers the safety in terms of safety same requirements as the conventional solutions.

The results obtained through tensile tests make this clear.

Should the cone on the valve seat for some reason (e.g. icing) are stuck, it must be ensured that the connection between The cone and spindle have the necessary security against shearing. Should still exceed the permissible shear strength of the pins are exceeded when the valve is opened, the pins shear off and become wedged due to the screwing in of the spindle, between cone and spindle.

The pins thus provide an additional safeguard for the connection represent.

Description of execution

In the drawings, a taper-spindle attachment designed according to the new design is shown in variants and explained below:

Fiq.l. A newly designed cone-spindle attachment.

Fig. 2. A newly designed cone-spindle attachment, for example with a clamp as a backup.

Fig. 3. A cone-spindle attachment designed according to the innovation, with a bellows, which also serves as a backup.

Figure 1 shows a cone-spindle attachment for suspending rotatable or stationary spindles (1) and cones (3), which are held in the axial and radial directions by cylindrical pins (4) when the valve is opened or closed.

The cylindrical pins (4), which absorb radial and axial forces when the valve is opened, are secured with an external safety device (5) secured to prevent the cone (3) and spindle (1) from loosening and the pins (4) from being lost.

Figure 2 shows a special embodiment of the fuse (5) as a hose clamp (8). When using the clamp (5), a turning is required on the cone (3) to prevent the clamp (5) from loosening in the axial direction and thus preventing the pins (4) from falling out.

Figure 3 shows a simplified variant

If a bellows (6) is used, an external fuse can be for example as a clamp (5) can be omitted.

Their function is performed by the bellows (6) itself. It is guided, for example, on the cone neck (2) and welded to (7) to loosening in the axial direction and thus the pins falling out (4) prevent.

Claims (6)

Phoenix Armaturen-Werke
Bregel GmbH Frankfurt Protection claims Bracket for suspending parts that move relative to one another, For example, there is a cone and spindle in the fittings area of cone and spindle, characterized in that the spindle is secured to the cone by means of an external safety device is attached. 2. cone-spindle attachment according to claim 1, characterized ge mark chnet that on the cone body (3) mounting holes are attached. 3. cone-spindle attachment according to claim 1,2, characterized characterized in that the spindle (1) is attached to the cone (3) by means of cylindrical pins (4). 4. cone-spindle attachment according to claim 1,2,3, characterized gekennzei chnet that the pins against falling out be secured by attaching an external locking element. 5. cone-spindle attachment according to claim 1,3,4, characterized characterized in that the securing element is a sleeve, a resilient ring, a clamp, snap ring or Can be similar. 6. cone-spindle attachment according to claim 1, 2 and 4, characterized in that the securing of the pins can be done by means of a bellows.