HU183597B - Split nut movement particularly for actuating telescope - Google Patents

Abstract

The drive mechanism according to the invention is defined by a threaded spindle and associated split nut whose threaded insert can be displaced axially against the tension member relative to the tension member. The relative rotation of the threaded insert and the base plate is prevented by formal connections formed on the surface of one or both connecting parts. The motherboard is attached to a guided transmission element. The split nuts fixed to the elements to be transmitted are mounted on the part of the spindle designed for this purpose. Fastening points are provided for connecting the elements to each other. The structure can be operated both manually and by machine. Field of application: e.g. antennas or antennas, boat masts, tents or building frames, special lifters, etc. Figure 1 -1-

Description

BACKGROUND OF THE INVENTION The present invention is a split nut actuator adapted to move various elements, e.g. to extend the telescopic tubes integrated with it.

Manual or mechanical lifting devices are known which are generally capable of extending tubular or truss columns in a vertical direction. For example, various types of wire rope and hydraulic equipment. The disadvantage of these devices is especially when pushing vertical masts, antennas, poles. The construction of lattice columns, when carried horizontally, is very space-consuming and difficult to set up, since these are generally low-rigidity columns and therefore have significant deformation during lifting. In the case of vertical installation, the use of a complicated rack is required. Telescopic poles cannot be mounted on site in the case of wire rope movement and can therefore only be delivered assembled. For example, the weight of the mast or mast, and thus its extendable height, is extremely limited in manual transport. In the case of hydraulic actuation, the telescopic elements can be made of very high-precision, costly tubes, due to the loss of sealing the lifting can only be achieved by mechanical operation, and after locking the elements have to be recoiled.

It can be concluded from the above that the disadvantages listed greatly limit the applicability of these types.

SUMMARY OF THE INVENTION It is an object of the present invention to provide continuous movement of various elements (e.g., telescopes) (e.g., sliding and retracting in a vertical position), while being simple and reliable, lightweight, human or machine operated, moving to and from each other. fastening and dismounting to the actuator is easy to implement, requires no special expertise, provides transportability as an element, and does not affect the main dimensions of the actuated elements beyond strength requirements.

Usage: eg. antenna holders or antennas, masts, tents or building frames, special load carriers, etc.

The actuator of the present invention is defined by a threaded spindle and associated split nut whose threaded insert may be axially deflected relative to the socket (e.g., a spring). The relative rotation of the threaded insert and socket is prevented by shaped connections (eg pins) along the surface of one or both of the connecting parts. The socket is fixed to a guided conveyor (eg to be extended) (eg to a telescope). The split nuts fixed to the elements to be conveyed (e.g. extended) are threaded to a specially designed part of the drive spindle. Fastening points are provided for connecting the elements to each other. A new threaded insert is engaged such that, depending on the location of the threaded spindle thread, the threaded insert is retained relative to the socket or battery until it is engaged. In order to ensure trouble-free engagement, the required displacement of the threaded insert is greater than the thread pitch.

The drawing is a sectional view of an embodiment of the actuator according to the invention at the moment of connecting two consecutive telescope elements (exemplary).

The 1-thread spindle serves to feed the 2-thread inserts. The threaded insert 2 may move freely in the direction of the axis of the threaded spindle in the socket 5. The threaded insert 2 may move against the tension member 4 (e.g., coil spring) relative to the socket 5. The displacement allowed in one direction is limited by the shoulder of the socket 5 itself, while the other direction is limited by the disc 3, thereby adjusting the tensioning device 4. After setting, the 3 dials are secured. The rotation of the threaded insert relative to the socket 5 is prevented by means of closures 6 (e. G. Pins in the socket shown in the figure). Of the successive elements (telescopes in the figure), the upper element 7 is in the pre-disengaged position and the lower element 8 is in the pre-disengaged position. The connecting element 9 (pin in the figure) serves to connect successive elements.

The actuator according to the invention is operated as follows:

The first element to be transmitted, the upper element 7 shown in the figure, is located such that the threaded insert 2 is already engaged with the initial threads of the threaded spindle 1. Further elements, such as the threaded insert 2 of the lower element 8 in the figure, are threaded onto the core of the threaded spindle I machined. By rotating the threaded spindle 1 in the required direction, the threaded insert 2 of the upper element 7 approaches the end of the threaded spindle 1. When the fixing points (holes in the figure) on the upper and lower members 7 coincide, the feed must be stopped and the elements 7 and 8 must be secured to each other by closing the connecting elements 9 (inserting pins in the figure). As the spindle 1 is further rotated, the elements 7, 8 move together. When the threaded insert 2 of the lower element 8 arrives at the bearing thread of the threaded spindle 1, the threaded insert 2 is retarded relative to the lower element 8 to move the tensioning device 4 (coil spring shown) while the threaded spindle 1 and the threaded insert 2 its threads are not connected.

The tensioning device 4 (coil spring in the figure) is relieved when the threaded insert of the upper element 7 is disconnected from the threaded spindle 1 and the load is received by the lower element 8 through the element 7. The rotation of the elements 7 and 8 is prevented (depending on the area of use, smaller masts on masts with antennas, eg with harbor ropes).

The retraction process is similar to the previous one except that the direction of rotation of the threaded spindle 1 is reversed and the connecting elements 9 are opened after the successive elements are connected to the spindle.

For multiple items, the process is repeated for the number of items.

As you can see, the structure is very simple, it does not require more advanced manufacturing technology than that used in general mechanical engineering, and it is made up of few parts, so it has a low chance of failure. Its drive does not require any special type of energy, it can be easily disassembled and assembled in any environment, it can be used safely.

183,597

Area of use: eg. for telescopic antennas, masts, masts, because it provides a very simple, lightweight, space-saving construction solution.

Claims (4)

Patent claims A split nut drive device, characterized in that the threaded spindle (1) comprises a positionable threaded insert (2) and a corresponding female socket (5) which is connected in a manner allowing movement relative to the threaded insert (4). Embodiment according to claim 1, characterized in that the threaded insert (2) is axially displaceable relative to the socket (5) relative to the socket (5). 5 Embodiment according to claim 1 or 2, characterized in that the rotation between the threaded insert (2) and the socket (5) is formed on the connection surface (6) of one or both parts (for example, a pin). ) 10 are disposed in a preventive manner. Embodiment of the actuator as defined in any one of claims 1 and 3, characterized in that the split nuts are secured to pushed tubes and threaded to the machined size of the threaded spindle (1). 1 figure