FR2550750A3 - Chain body for tracks - Google Patents

Abstract

The guiding teeth are subjected to heavy wear and determine, consequently, the lifespan of the track. One shaping of the guiding tooth in two parts makes it possible to make it removable. For this, the root of the tooth 2 is connected in just one piece to the body of the chain 1 and the guiding tooth made in the shape of a throw-away wear piece is linked in a removable fashion to the root of the tooth. The linking types provided are screwings or weld beads.

Description

 Chain body for tracks.

 The present invention relates to a chain body for tracks, comprising removable guide teeth.

 German patent 1 186 764 discloses a removable guide tooth for a track body. This guide tooth is inserted and fixed in an opening in the chain body. To obtain a precise adjustment of the guide tooth in the opening, it is necessary to observe corresponding tolerances.

 The present invention relates to chain bodies with simple removable guide teeth.

 To achieve this objective, according to the invention, the chain body is connected in one piece to the base of the tooth, and the base of the tooth is removably connected to the guide tooth produced in the form of a piece of wear lost.

 Other advantageous variants will emerge from the following.

 Thus, it is expected that the base of the tooth has one or more wear caps, that the base of the tooth and the wear cap have conical guide surfaces and that a screw or a weld bead secures .

 Provision is also made for the base of the tooth to have, as a truncated tooth, a connection surface and to be connected to it by welding.

 The solution according to the invention makes it possible to considerably increase the life of the track by making it possible to replace the guide teeth exhibiting high wear, at a relatively reduced cost.

We will now describe examples of non-limiting embodiments of the invention, shown in the accompanying drawing,
Figure 1 is a cross section of a chain body guide tooth
Figure 2 shows the guide tooth of Figure 1, in section along line II-II
Figure 3 shows a guide tooth;
Figure 4 shows the guide tooth of Figure 3, in section along line IV-IV
Figures 5 to 7 show other guide wire
According to FIGS. 1 and 2, a chain body 1 is connected in one piece to a tooth base 2.

 A guide tooth is produced in the form of a wear cap 3 and is welded to the foot of the tooth, as indicated by the reference numeral 4.

 According to Figures 3 and 4, two wear caps 7, 8 are welded to a tooth base 6.

 According to FIG. 5, a tooth base is produced in the form of a truncated tooth 10 with a flat surface 11. A guide tooth 12 has surfaces 13 to form a groove for a weld bead 14.

 According to Figure 6, a guide tooth 17 is connected to the stump 10 by butt welding.

 According to FIG. 7, a guide tooth is produced in the form of a wear cap 20 and is connected to a tooth base 21 by a screw 22.

 The exemplary embodiments according to FIGS. 1 to 4 and 7 show conical guide surfaces 25 which allow rapid assembly during the placement of the guide teeth.

Claims (3)

 1. Chain body for tracks comprising removable guide teeth, characterized in that said track body (1) is connected in one piece to a tooth base (2, 6, 10, 21) and in that the tooth base (2, 6, 10, 21) is detachably connected to the guide tooth (3, 7, 8, 12, 17, 20) produced in the form of a lost wearing part.  2. Body according to claim 1 characterized in that the tooth foot (2, 6) comprises wear caps (3, 7, 8, 20), in that the tooth foot (2, 6), the wear caps (3, 7, 8, 20) have conical guide surfaces (25-), and in that a screw connection (22) or a weld bead (4,14) ensures the fixing.  3. Chain body according to claim 1, characterized in that the tooth base is produced in the form of a truncated tooth (10) having a connection surface (11), and in that the guide tooth (12 , 17) has a corresponding connection surface (15) and is connected to it by welding (13).