DD142070A1 - DEVICE FOR ASSEMBLING SUBSEQUENTLY DISCONNECTED TUBE PIPES IN PIPE CARRIERS - Google Patents

Abstract

The invention relates to a device for contraction successively laid concrete bell socket pipes for sewers. The aim and object of the invention is to improve the working conditions of the workers in the laying of concrete bell socket pipes and to reduce the effort. This is achieved in that the device consists of a front and a rear abutment, which are connected by means of Zuorgane. The front abutment is designed as a clamping device, which is attached at any point to the already laid pipe. By means of an eccentric a gleichmaessiger contact pressure is achieved on the pipe jacket.

Description

3 -4-

title

Apparatus for contraction of successively laid bell cup pipes in pipe trenches

Field of use ' .

The invention relates to a device for contraction successively laid bell cup pipes in pipe trenches. The device can be mounted at any point of the previously laid pipe and automatically tensioned depending on the introduced tensile forces of the traction device. The application of the invention is particularly advantageous for laying large-sized concrete bell socket pipes in civil engineering for drainage pipes.

characteristics

In the construction of sewers increasingly bell socket pipes are used. These are tubes with one bell-shaped end on one end and a spigot on the other side. When laying these pipes, the spigot of the following pipe is inserted with the interposition of a sealing ring in the bell end by means of mechanical tension or pressure devices while the following tube is contracted with the previously laid pipe. For the contraction of such pipes, a device is already known, which consists of a Zugbock, train lines and drawbar. In this device

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the traction ropes are guided by the Zugbock, which mounted as a front abutment on already laid pipe through the pipe interior to the Zugtraverse, which is arranged at the end of the pipe to be laid. By suitable mechanisms, such as hydraulic devices or hoists the pipe to be laid is contracted with the previously laid pipe. Published information 5-78 of the VE Tiefbaukombinat Cottbus "A disadvantage of this device is that in the production of longer pipes long traction cables are required, which have a high elasticity. It is difficult to communicate the workers at both ends of the pipeline. The risk of accidents due to longer pull cables increases. The application of laser measuring instruments is hampered because the laser beams are preferably conducted through the tube interior. Another contraction device consists of a front and rear abutment and a pulling device of an endless rope. The rear abutment is formed from a U - shaped frame, the legs of which are placed behind the sleeve on the already laid pipe. The front abutment is attached to the front of the pipe to be laid. The traction cables' are guided over rollers from the rear to the front abutment side of the tubes. By a traction device, the traction cables are operated and pulled together the newly laid pipe with the already laid pipe. Published in. € # Äür * 2408978. This device has the disadvantage that the two abutments have a high weight and the long endless pull rope is subjected to strains. Moving the front abutment is complicated.

Object of the invention

The aim of the invention is to eliminate the disadvantages of known devices as well as to improve the working conditions of the working people and to reduce the manual effort.

Presentation of the essence of the invention - task

The invention has for its object to provide a device for contraction successively relocated bell cup pipes in pipe trenches, composed with the relatively easy to reduce the physical effort and reduce the construction time large-sized pipes for sewers and tightly laid · can.

Features of the invention

The device for contraction of bell socket tubes is characterized in that the front. Abutment is designed as Spannvofrichtung consisting of an anchor rope with cable closure and an eccentric. The eccentric according to the invention consists of a base plate with brake pad, which is fixedly connected to an anchor block on which an eccentric lever is rotatably mounted.

The operation of the new device is that after laying a tube, the anchor rope of the tensioning device placed anywhere on the already laid pipe and means.the cable closure is connected to a ring. At the level of the tube axis, the anchor plates with eccentric are placed on both sides under the tensioning cable. By this suspension of the anchor plates shifting under the tensioning cable is prevented. After laying the designed as a tensioning device front abutment the traction cables are mounted in the eccentric and laterally guided the tubes to the rear abutment and connected to the traverse.

By means of a pulling device which acts on the pressure bar of the rear abutment, the drawing process is triggered. The resulting tensile forces are transmitted via the tension elements on the Sxzentereinrichtung and thereby on the anchor rope. The resulting contact pressure is transmitted evenly through the anchor rope on the anchor plates and on the tube shell of the tube. With increasing increase of traction in

the tension elements increases the contact pressure of the anchor plates and the eccentric causes an increase in the tensile forces in the anchor rope which in turn generates ring pressure forces on the pipe jacket of the already laid pipe depending on it. The forces acting on the pipe jacket of the pipe anchor forces are greater ^ than the pressure required for pipe insertion.

embodiment

The invention will be described in more detail with reference to an embodiment. , ,

In the drawings show:

Pig. 1, the device according to the invention in side view of already laid bell cup pipes in a pipe trench

Fig. 3 is a plan view of the eccentric device

Referring to Fig. 1, the bell socket tube are sequentially laid in a pipe trench to make a pipeline. When installing the bell sleeve pipes is moved so that applied to an already laid pipe 10 by means of a hoist, a new pipe 11 with a corresponding distance to the already laid pipe 10 on the trench sole 13 and centered. By means of the device according to the invention, the tube 11 is then inserted into the laid tube 10. The device according to the invention consists of a front abutment 1, a rear abutment 2 and a trolley with drawbar 3 and pressure bar 4 * The front abutment 1 is connected to the rear abutment 2 by means of traction elements 5. The front abutment T consists according to the invention of an anchor rope 8 and two Exsentervorrichtungen · The eccentric device consists of a base plate 6 which has a brake pad 16 on its underside «The base plate 6 is provided with a

Anchor 15 connected to the one eccentric lever 7 is rotatably mounted. The puncture mode of the contraction device according to the invention is the following:

After the newly laid tube 11 was introduced into the trench, the anchor rope 8 is placed around the threaded tube 10 at any point and connected to the cable closure 9 into a ring. At the level of the tube axis 12 v / earth the eccentric devices are hung under the anchor rope 8 on both sides. After attaching the tension elements 5 -. preferably ropes -, in the eccentric lever 7 and in conjunction with the abutment on the trolley with drawbar 3 can be started with the drawing process.

The induced by the traction device 3 tensile forces are transmitted to the eccentric lever 7 via the tension members 5 and tension by the eccentric effect the anchor rope 8. This creates a contact pressure, which is transmitted via the eccentric lever 7 and the anchor plates 8 on the tube shell of the tube. *

With increasing increase of the tensile forces in the tension members 5, the contact pressure of the base plates 6 increases on the pipe jacket. At the same time, the eccentric lever 7 causes an increase in the tensile forces in the anchor rope 8, which in turn generate ring pressure forces on the tube jacket, as a result of which a deformation of the tube is prevented.

Claims (1)

claim Apparatus for contraction successively laid bell cup pipes in trench from a mounted on the "already installed pipe front abutment and attached to the pipe to be rear abutment and a connected to the abutment pulling device characterized in that the front abutment (1) is designed as a clamping device and an anchor rope (8) with a cable closure (9) and two eccentric devices Device according to item 1, characterized in that the eccentric device has a base plate (6) with anchor block (15) on which an eccentric lever (7) is rotatably mounted, and in that the base plate (6) is provided on its underside with a brake lining (16) is. Dazu_j * L_ $ a drawings