RU2029059C1 - Assembly of core catchers - Google Patents

Abstract

FIELD: mining. SUBSTANCE: assembly of core catchers is made in form of body 1 with shoe 2. Holder 3 is located inside body 1. Mounted in recesses of holder 3 are toggles pressed by springs. Upper part of holder 3 has conical seat 6 in which conical ring 7 of collet core catcher 8 is installed. Collar 9 of holder 3 limits lift of holder in body in body. Connected to top of body 1 is adapter 10. EFFECT: higher reliability and efficiency of core catchers assembly due to combined operation, of core catchers, increased yield of core, and reduced labor input in their manufacture. 2 dwg

Description

 The invention relates to mining, in particular to devices for tearing and holding the core - layout of core-breakers.

 Known core drill arrangements containing a lever core cutter, including a holder with rotary levers, and a collet core cutter located below it, including a conical ring mounted in the conical seat of the shoe [1].

 The disadvantages of such core-breaker arrangements are the lack of interaction between both core-breakers with each other during operation, excessive costs for manufacturing parts framing spaced core-breakers. In addition, the location of the levers above the collet does not facilitate their work, especially in difficult to select rocks.

 Known adopted for the prototype arrangement of core openers containing a lever core arrester, comprising a clip with rotary levers and a collet core opener located above it, including a cone ring mounted in the cone seat of the shoe [2].

 This embodiment provides better operation of the levers, which are closed under the collet, which has already "bit" the core. However, such a design does not eliminate the first two drawbacks.

 The purpose of the invention is to increase the reliability and efficiency of the arrangement of core-breakers due to the joint work of core-breakers, increase core yield and reduce the complexity of manufacturing.

 This goal is achieved by the fact that in the arrangement of core-breakers containing a lever core cutter, including a clip with levers and a collet core cutter located above it, including a conical ring mounted in a conical seat, the tapered saddle is made in the clip of a lever core cutter.

 Comparative analysis with the prototype shows that the claimed technical solution is characterized in that the cone seat is made in the holder of a lever core cutter. Thus, the claimed technical solution meets the criterion of "novelty."

 Comparison of the claimed technical solution not only with the prototype, but also with other known solutions in this technical field did not reveal signs that distinguish the claimed technical solution from the prototype, which allows us to conclude that the criterion of "significant differences".

 A distinctive feature of the claimed technical solution, which consists in the fact that the conical seat is made in the holder of the lever core cutter, ensures the joint operation of both core cutters, because at the beginning of drilling, when the core starts to fit into the layout, the lever core cutter also helps to raise the collet core cutter, and at the end of drilling , when the core is torn off, the collet chipper, having bit the core, facilitates closing of the levers. The location of core-breakers on each other reduces the length of the framing parts and reduces the complexity of manufacturing the layout of core-breakers.

 In FIG. 1 shows the proposed arrangement of core breakers; in FIG. 2 is a section AA in FIG. 1.

 The core-breaker arrangement is made in the form of a casing 1 with a shoe 2. Inside the casing 1 there is a cage 3, in the grooves of which are mounted levers 5 pressed by springs. In the upper part of the casing 3 there is a conical seat 6, in which a conical ring 7 of the collet core-breaker 8 is installed. Burt 9 on the clip 3 limits the rise of the clip 3 in the housing 1. On top of the housing 1 is attached an adapter 10.

 Kernorevatel works as follows. When the core enters the core breaker arrangement, the holder 3 rises, raising the collet core breaker 8, which then rises to the stop in the adapter 10. The levers 5 are rotated from horizontal to vertical position. Burt 9 on the clip 3 limits its stroke in order to allow the collet 8 to rise and open. When the tool is separated from the face, i.e. when the layout is lifted, the collet core cutter 8 is mounted in its conical ring 7 in the conical seat 6 of the cage 3, and the levers 5 are rotated by the action of the springs 4, overlap the core-receiving cavity section and bring the core to the surface.

 According to the proposed technical solution, an arrangement of core breakers for core with a diameter of 80 mm was developed.

 Technical advantages of the proposed arrangement of core cutters are an increase in core yield, an increase in the reliability of work, and a decrease in the complexity of manufacturing.

 The socially useful advantages of the proposed technical solution are the reduction of terms and the cost of exploring new deposits.

Claims (1)

 COMPOSITION OF CORNATORS, comprising a lever core cutter in the form of a cage with rotary levers and a collet core cutter located in the form of a conical ring mounted in a conical saddle located above it with the possibility of limited axial movement, characterized in that, in order to increase reliability and work efficiency due to the joint work of core core cutters , increasing the core output and reducing the complexity of manufacturing, the cone seat is made in the holder of the lever core core above its rotary levers, the holder of the core core Vatel is mounted for limited axial movement, wherein the axial stroke of the ring cone collet core catcher exceeds the axial displacement of the cage single control core catcher.

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