DE9319008U1 - Drill stand with roller guide for diamond core drilling machines or similar - Google Patents

Description

Sheet: %

Fa. Ka.stner + Fleischer, Koblberg, 83564.Soyen Drill stand with roller guide for '

The innovation shows a drilling stand consisting of a drilling column, adjustable mounting bracket, motor support housing and internal precisely running roller guide.

The drilling column consists of a right-angled square tube with radii at the corners, which serve to axially guide the rollers.

A mounting bracket (10) is required to secure the device. In order to ensure that the drilling column is stable and plumb, the adjusting screws (11) at four corner points must be countersunk and screwed back to the lower edge of the bracket. This increases the support surface.

Turning handles ( 12 ) are provided for easy operation of the adjusting screws.

Guide housing with rollers, carrying handle and locking mechanism . &igr; ..

Conventional square tube guides had to be fitted with sliding plates or rollers on all four sides. In this version, specially developed rollers (3) are located on only two opposite sides. This saves the need for additional rollers. Two rollers (3) must be mounted opposite one another on an axle (4). The axles ( h ) are screwed to the outside in a divisible housing (2).

Sheet : $ Fa. Kastner + Fleischer ,, _t Koblberg ,· 83564 Soyen

The design of the rollers ( 3 ) achieves a very high load in the radial direction and a somewhat low load capacity in the axial direction.

The rollers ( 3 ) are supported from the inside by one or more ball bearings ( 6 ) - capable of bearing radial and axial loads. Because the corners of the rectangular tube ( 1 ) are provided with a radius, the axial load is transferred to the radius surfaces ( 7 )

This means that rolling occurs in the 89° area. At 90° flanks, excessive friction (wear) would occur on the outside of the pipe surfaces.

The four required radii ( 7 ) of the rollers ( 3 ) form a closed unit (bearing) around the square tube ( 1 ), whereby the radius surfaces ( 7 ) can be expanded variably depending on the load.

The entire system can be built in any pipe and roll size.

On the side (8) of the housing there is the possibility of installing motors or tools.

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For vertical holes, a locking mechanism (9) is necessary, and thus allows the motor support housing (2) to be secured at any height. The innovation is an adjustable wedge lock that can be pushed sideways into the gear rack. In order to prevent the locking mechanism from coming loose, it is held in the desired position by pre-tensioned spring washers.

Claims (2)

Protection claims 1. Drill stand of a core drilling machine comprising a mounting bracket with countersunk adjusting screws, a rectangular guide tube attached thereto with radii at the corners, a rack attached in the longitudinal direction, a housing that can be moved along the guide tube with internal guide rollers and a front adapter surface for attaching motor tools. Locking of the guide housing by means of a wedge bolt that can be inserted transversely to the rack characterized, that countersunk adjusting screws (11) are attached to the four corner points to ensure that the guide column (1) is vertically aligned - that a rectangular guide tube with radii (7) at the corners is provided on the console (10) - that at least eight cylindrical rollers (3) with an outwardly extending rim are formed in a two-part guide housing (2) - that the radius of the rollers (3) between the running surface and the rim is the same as the radii (7) at the guide column corners - that the rollers are guided by an internal radial and axial bearing (6) - that the four or more axles (4) each have two rollers (3), arranged opposite one another in pairs and several behind one another - that there is a flat surface (8) parallel to the rollers (3) and the guide tube for attaching motors and tools - that the wedge bolt (9) of the locking mechanism can be pushed into the toothing of the rack in order to to protect the housing (2) against spontaneous displacement. 2. Drill stand according to claim 1 , characterized in that that at least eight cylindrical rollers (3) with outwardly extending rims are formed in a two-part guide housing (2).