CN2063575U - Rope core drill - Google Patents

Abstract

Disclosed is a rope core drill which is composed of a salvaging mechanism, a positioning mechanism, etc. The utility model is characterized in that a salvaging spearhead can rotate around an axial cord for 360 DEG and can be always positioned on the own axial cord; a fastening plate whose center part is provided with a circular hole and is provided with a compression spring forms a square bar shape; an elastic and fastening device, an inner tube joint, etc. are all arranged on a mandrel for guaranteeing concentricity; an adjusting cushion is used for adjusting the distance between a fastening spring base and a drill bit step which are positioned on the lower end of an inner tube. Therefore, the utility model which can not easily move upwards has the advantages of easy salvage, good single acting performance, uneasy long service life of a bearing, light weight, short length, etc.

Description

Rope core drill

The utility model belongs to the geological processing machinery field, is to be installed on the rig in order to extract rock core.

On the rig of used for geological prospecting, general cord coring drill breaks off relations when all having salvaging easily now; Interior pipe is gone up string; The single action performance is bad; Just a drilling tool is a more piece axle interlink, thereby concentricity is bad, and because of vibrations, loosening easily; The governor motion heaviness; From great; Shortcomings such as scale length.

The utility model is exactly the improvement of carrying out at the shortcoming of present general drilling tool, and purpose provides a kind of easy salvaging, and interior pipe is difficult for going up string, regulate easily, and from heavy and light, the cord coring drill that yardstick is short.

The purpose of this utility model can reach with following measure:

Dragging for the spearhead seat boss of having got on the bus, this boss hangs over again in the groove that draws cover in, so just can make and drag for spearhead around 360 ° of rotational, to drag for spearhead and always be on the axis in order to make again, be drilled with depression dragging for the spearhead bottom, in depression, add place kick again, place kick is under the compression spring action, so just make and drag for spearhead and always be on the axis.For pipe in making in creeping into not on string, the utility model is all side's of the making bar shapeds of 2 bullet card clamps, and is drilled with the hole, garden at square bar shaped middle part, puts a compression spring in the hole, withstands a bullet card shelves lower end to support clamp.In order to overcome because of the more piece axle connects the shortcoming of bringing, the utility model is adjusting device again, and spring clip device stops up notify device, single action bearing, and inner pipe joint, all is installed on the mandrel.Again because the inner pipe joint upper bearing damages easily, the utility model is given in addition bearing-shield of this bearing.In the utility model, adopt the spacer that is contained on the mandrel to regulate the distance of interior pipe lower end clip spring seat and drill bit step.And mandrel changed into hollow, so drilling tool can make therefrom vacancy circulation of flushing liquor when throwing in drilling rod, reduce buoyancy of water, helps drilling tool and descends.Drag for the spearhead axle simultaneously, draw sleeve in, the clamp axle changes garden cylindricality solid shafting entirely into.

Owing to done above improvement, make the utlity model has and salvage easily, single action is good, is difficult for string in creeping into, and bearing life is long, and is in light weight, and length dimension is little, and the inner and outer pipes length difference is little, and advantages such as easy are repaired in debugging.

Further introduce the utility model below by accompanying drawing

1 is to drag for spearhead among the figure; The 2nd, drag for the little axle of spearhead; The 3rd, drag for the spearhead seat; The 4th, place kick; The 5th, retainer spring; The 6th, the clamp spring; The 7th, clamp; The 8th, the little axle of clamp; The 9th, draw cover in; The 10th, draw the little axle of cover in; The 11st, mandrel; The 12nd, cushion rubber (cry again and stop up the device of notifying); The 13rd, sealing ring; The 14th, bearing-shield; The 15th, adjusting device; The 16th, inner pipe joint; The 17th, buffer spring; The 18th, lower bearing; The 19th, upper bearing (metal); The 20th, ball valve.

From accompanying drawing, can see, drag for spearhead 1 and be by dragging for the little axle 2 of spearhead and dragging for spearhead seat 3 and link to each other, dragging for spearhead 1 can do ± 90 ° of rotations around dragging for the little axle 2 of spearhead, convex ring is arranged dragging on the spearhead seat 3, this ring hangs over again on the Baltimore groove that draws cover 9 in, and therefore dragging for spearhead 1 can do 360 ° of rotations around its axis.Guaranteed the use flexibility and reliability like this.Simultaneously be drilled with the spill cave in the bottom of dragging for spearhead 1, place kick 4 is close in the depression under the support of retainer spring 5, therefore makes to drag for spearhead 1 and always remain on the longitudinal axis.

Bullet card clamp 7 is square bar shapeds, is drilled with the hole, garden at bullet card 7 middle parts, by compression spring 6 is arranged, under the effect of spring 6, makes two bullet cards be in open configuration in the hole, garden, therefore prevents from effectively to go here and there on interior pipe bit tool is in creeping into.

From accompanying drawing, can see, in the utility model,, stop up the device 12 single action persons that notify and hold 18,19 inner pipe joints 16 and all be contained on the mandrel 11 adjusting device 15 spring clip devices (this device comprises the little axle 8 of clamp 7, clamp spring 6, clamp).The drilling tool concentricity is improved.Simultaneously again bearing 19 is added protective cover 14, therefore make bearing 19 not easy to wear.

In the utility model, adjusting device 15 is made up of spacer, is the distance of pipe lower end clip spring seat and drill bit step in regulating with it.The best of adjusting device 15 is formed and is made up of the spacer of 5 different-thickness, and these several spacers can be contained in the top or the bottom of inner pipe joint 16, and its adjustable range is 0-21mm.

Can see that from accompanying drawing mandrel 11 is a hollow, ball valve 20 is equipped with in the mandrel bottom, so drilling tool is when throwing in boring, and flushing liquor can help drilling tool decline like this by the middle part circulation of mandrel 11.And when creeping into, flushing liquor is pushed down ball valve 20, makes flushing liquor from interior pipe outside, flows through in the gap of outer tube inside.

Drag for the little axle 2 of spearhead, the little axle 8 of clamp draws the little axle 10 of cover in, is garden post solid shafting entirely.

Claims (2)

1, the cord coring drill a kind of by salvaging mechanism, that detent mechanism etc. are formed is characterized by:

A: drag for spearhead 1 bottom and be drilled with depression, be placed with place kick 4 in the cave, place kick 4 is again under the support of retainer spring 5; Dragging on the spearhead seat 3 has convex ring, and hangs over and receive on the groove disturb cover 9;

B: clamp 7 sides of being bar shaped;

C: adjusting device 16, stop up the device 12 of notifying, single action bearing 18,19, inner pipe joint 16, spring clip device all are contained on the mandrel 11;

D: regulate interior distance of managing between lower end clip spring seat and drill bit step by adjusting device 16;

E: mandrel 11 is a hollow;

F: drag for the little axle 2 of spearhead, the little axle 8 of clamp, receipts are disturbed the little axle 10 of cover and are garden post solid shafting;

G: upper bearing (metal) 19 is added with guard shield 14.

2, cord coring drill as claimed in claim 1 is characterized by:

Clamp 7 middle parts are drilled with the hole, garden, are placed with compression spring 6 in its hole.