DE8117087U1 - HIDGABLE ROD HEAD FOR THE GUIDE RODS OF A CONTROL AND RETURN DEVICE - Google Patents

Description

• * t II <I i

«· · Il 14 1« «

• · IICII * i

May 29, 1981 Qu / Bös Gw 8136

Utility model registration

of the company

Westfalia Ironworks Union, 46 70 Lünen

Hidable rod head for the guide rods of a control and return device

The invention relates to a hideable rod head for Guide rods of a control and return device of an underground Extraction facility.

In the case of underground extraction systems, a control and return device is connected between the extension and the conveyor. This control and return device is used to control the mining machine and to back the face conveyor or the Expansion. Such control and return devices are known and do not need to be explained in more detail.

In many cases it is desirable to measure the distance between the face conveyor and the extension and thus between the coal face and the top of the hanging cap to vary. By hiding rod heads that can be switched between guide rods and conveyor the distance expansion / conveyor can be changed slightly without affecting the walking distance of the rear device.

From DE-OS 25 34 3 25 of the applicant, a rod head is known which has connection eyes on the offset side for receiving the guide rods having. The connecting eyes are essentially bank right, tightly enclosing the guide rod Drilling. These holes are penetrated by vertical groups of holes that allow the guide rods to be hidden. On the coal joint side, this rod head has a swivel joint, with the aid of which the rod head is attached to the control cylinder bearing connector can be attached.

These concealable rod heads have proven themselves in principle, but in practice some disadvantages become apparent over time. Due to the brine underground water, the spring rods and the rod heads tend to corrode, making it impossible to hide the rod heads is very difficult to achieve. If the time intervals between the individual hiding places are too long, it can it can happen that the spring rods with the rod heads in such a way are rusty that hiding is completely impossible.

The object of the invention is to design a hideable rod head of the aforementioned type in such a way that hiding is problem-free between guide rods and rod head is easily possible even after longer intervals.

This object is achieved according to the invention in that the rod head Has longitudinal channels, the outer walls of the adjacent channels pointing away from one another over parts of their area as Laterally open pockets are formed.

In a further embodiment of the invention, the laterally open Pockets have a substantially rectangular shape, the top and bottom surfaces of which diverge from the center.

This measure eliminates unnecessary contact surfaces between the rod head and guide rods avoided and the rusting together effective prevented.

The locking between the rod head and the guide rod takes place via a bolt connection. The bolt is held by fork clamps secured, which is protected in recesses in the rod head lie. The use of protected fork clamps enables the connection to be released quickly without the need for expensive special tools .

jjj The connection of the rod head to the one carrying the control cylinder

'' The connecting part is made via a center behind the connecting rods

; - lying swivel joint. The swivel joint is secured by a bolt that

'Tangentially grips through the swivel joint bore, axially fixed.

i In a further embodiment of the invention, the rotary-I a joint fork head is provided in place. The fork head has inner guide surfaces which diverge towards the outside.

The invention is illustrated below with reference to the drawings Embodiments explained in more detail.

Show it:

Figure 1 shows the rod head according to the invention in side view

Figure 2 shows the rod head according to the invention in plan view

Figure 3 shows the rod head according to the invention according to section I-I of Figure 2

Figure 4 shows another embodiment of the invention Rod head in side view

FIG. 5 shows a plan view of the rod head according to FIG. 4.

The rod head 1 is located between the guide rods 2 and the attachment 3. The attachment 3 is attached to the face conveyor and carries a control cylinder for level control of a mining machine.

The rod head 1 is pushed with its longitudinal channels 4 over the guide rods 2 and through the bolt connection 5 'in the desired Locked position. Securing the bolt connection 5 'takes place via the fork clamp 6, which is inserted through holes 7 and is protected in recesses 8, 9 of the rod head 1.

The longitudinal channels 4 are formed over parts of their area as laterally open pockets 10, between which a web (21) runs. The pocket surfaces 11, 12, 13 are at right angles to one another. The upper and lower pocket surfaces 11, 13 run diverging in their outer area.

The connection of the rod head 1 to the attachment 3 takes place via a swivel joint. The swivel joint is axially fixed via a tangential bolt connection 14 running at right angles to the axis of rotation.

Figure 4 and Figure 5 show the connection of the rod head by means of Fork part 15. The inner surfaces 16, 17 of this fork part 15

run diverging towards auiien. The rod head is attached to the connecting part by a bolt 18, which is locked in the middle of the fork piece 15 attached to the conveyor.

summary

06/03/1981 Qu / Bös Gw 8136

The invention relates to a concealable rod head (1) of a control and return device of an underground mining device. The rod head (1) has longitudinal channels (4), the outer walls (19, 20) of the adjacent channels pointing away from one another over parts of their area as laterally open. Pockets (10) are formed (Figure 2).

Claims (13)

1111 * Il I # »lilt · May 29, 1981 Qu / Bös Gw 8136 protection claims 1. Hidable rod head for the guide rods of a control and return device of an underground mining facility, characterized in that the rod head (1) has longitudinal channels (4), the mutually facing outer walls (19, 20) of the adjacent channels over parts of their area as laterally open pockets (10) are formed. 2. Hidable rod head according to claim 1, characterized in that the rod head (1) is designed as a one-piece casting. f 3. hideaway rod head according to claim 1 and 2, characterized in that the lateral openings of the longitudinal channels I. (4) are designed as pockets (10), the surfaces of which B (11, 13) are divergent. {: 4. Hideable rod head according to one or more of the previous |; previous claims, characterized in that the r pockets (10) have the shape of a rectangle in the inner area. 5. Hidable rod head according to one or more of the preceding claims, characterized in that the longitudinal channels (4) designed as open pockets (10) have groups of holes (5) for a hideable bolt connection (5 ¹ ). 6. Hidable rod head according to one or more of the preceding claims, characterized in that the bolt connection (5 ¹ ) is secured by fork clamps (6). 7. Hidable rod head according to one or more of the preceding claims, characterized in that the fork clamps (6) are protected in recesses (8, 9) of the rod head (1). 8. Hidable rod head according to one or more of the preceding claims, characterized in that one end
of the rod head (1) is designed as a pivot bearing that
is in the middle in front of the longitudinal channels (4). 9. Hidable rod head according to one or more of the preceding claims, characterized in that the pivot bearing is secured axially by a tangentially, at right angles to the axis of rotation arranged bolt (14). 10. Hidable rod head according to one or more of the preceding claims, characterized in that one end
of the rod head (1) is fork-shaped. 11. Hidable rod head according to claim 10, characterized in that the inner fork surfaces (16, 17) to the outside
are formed diverging. 12. Hidable rod head according to one or more of the preceding claims, characterized in that a separating web (21) is arranged between the longitudinal channels (4). 13. Hidable rod head according to one or more of the preceding claims, characterized in that the longitudinal channels (4) are arranged parallel or diverging.