CN2068142U - Punching grabbing drilling machine - Google Patents

Abstract

The utility model discloses a punching grabbing drilling machine, mainly composed of a hauling machine, a tower frame, a hook device hung on the tower frame, and an impact claw awl head in the open and close type. The ropes of the hauling machine are connected with the impact claw awl head, after passing round the tower frame. For decreasing the resistance of impacting and clawing of the awl head, and improving the bearing capacity of the hook device, the longitudinal contour of the awl head and awl lobe petal of the drilling machine is designed as circular arc-shaped. The point angle of the awl of the awl petal is 45-60 DEG; the hook device is composed of an inner ring, an outer ring, and a pin board hinged on the outer rib of the inner ring. The both ends of the pin board are respectively extended into a groove hole on the cylinder wall of the inner and outer rings, when the inner and outer rings relatively displace, the pin board turns towards inside or outside, and therefore, the hanging and doffing of the hook is realized.

Description

Punching grabbing drilling machine

The utility model relates to a kind of drilling equipment, particularly a kind of have can open and close dashing of conehead and grab the formula trepan.

Chinese patent CN88206586.6 discloses a kind of dashing and has grabbed the formula trepan, and it mainly comprises hoist engine, pylon, hangs autocoupler, splicing cover and Impact claw awl head to be opened/closed on pylon.Be provided with automatic on/off mechanism coiling on the conehead, after the hoist engine rope is walked around the fixed pulley on pylon top and splicing cover and joined, be wrapped in again on the upper and lower dish assembly pulley of conehead.When rope loosened, the upper and lower dish pulley of conehead was close relatively, the conehead closure, when drawing on the rope, two assembly pulleys relatively away from, conehead opens, thereby can carry out percussion drilling and the work of grasping stone, soil.Hook device, splicing cover and switching mechanism three cooperate can make closed conehead hang on hook device, and opens it.But the awl lobe of this rig has only pintongs, and point angle is bigger; And vertical outline line of awl lobe is a straight line, thus creep into and the resistance when grabbing soil bigger, particularly when bore diameter greatly the time, the influence of this resistance is more obvious, and operating efficiency is greatly reduced.In addition, the hook device of this rig is to utilize the opening and closing of L shaped hook to realize hanging, breaking off relations, and its reliability is relatively poor, supporting capacity is less, thereby has also limited the bore diameter of this rig, generally only is about one meter.

The purpose of this utility model is that above-mentioned existing rig is improved, and it is higher to make it operating efficiency, and can bore the big wellhole more than two meters.

For achieving the above object, the utility model has been done following improvement to above-mentioned existing rig: the first, improve the geometry that conehead is bored lobe, and reduce to dash the resistance when grabbing.Its vertical profile of awl lobe after the improvement, promptly the profile of vertical section is a circular arc, the point angle of each awl lobe is 45 °～60 °.The second, change the structure of hook device, improve its supporting capacity and security reliability, the hook device that is provided is by inner ring, the outer ring that slides up and down of inner ring and being installed on the outer muscle of inner ring, and the composition of the pin plate between inside and outside circle relatively.Have slotted eye on the wherein inside and outside circle barrel, the pin plate two ends are stretched into respectively in the slotted eye of inside and outside circle.In addition, pin plate deviation of gravity center bearing pin and rely on inner ring one side.The inner ring of this hook device is motionless during work, and when the outer ring moved down by gravity, its slotted eye upper edge drove the outside upset of pin plate and leaves inner ring, thereby can realize breaking off relations; When moving on the outer ring, the constraint to pin plate has been removed in its slotted eye upper edge, and pin plate overturns inwards under eccentric action of gravity and stretches in the inner ring, thereby can realize hook.

Below in conjunction with accompanying drawing content of the present utility model is illustrated.

Fig. 1 is overall structure figure of the present utility model.

Fig. 2 is the sectional side elevation of awl lobe.

Fig. 3 is that the A of Fig. 2 is to partial view.

Fig. 4 is the structure chart of hook device.

Fig. 5 is the structure chart of snubber.

As shown in Figure 1: pylon 1 adopts man-like shelf, conehead 2 by last dish 3, lower wall 4, be hinged on awl lobe 5 on the lower wall, on coil assembly pulley 6, lower wall assembly pulley 7, counterweight 8 and connect and go up dish 3 and form with the connecting rod 9 of awl lobe 5.On the last dish 3 automatic on/off mechanism 10 is housed, autocoupler 11 is hung on the pylon certain altitude.The fixed pulley 13 of walking around cat head from the wire rope 12 of hoist engine and lower end are that the splicing cover 14 of inverted T-shaped links to each other, and pass then on the upper and lower dish assembly pulley 6,7 that switching mechanism 10 is wrapped in conehead 2.When wire rope 12 loosens, lower wall 4 under action of gravity relatively on dish 3 descend, awl lobe 5 opens; Otherwise it is opposite.Structure such as Fig. 2, shown in Figure 3 of awl lobe 5: the lobe leaf 15 of awl lobe 5 is the hyperbolic cambered surface.The level and the vertical cross section profile that are it are circular arc, and the lobe blade tip is welded with 65Mn steel plate lobe point 16, and point angle θ is 52 °.In order to make pit shaft beat to such an extent that circle is straight more, be provided with 6 awl lobes on the conehead altogether.

Fig. 4 has provided two kinds of duties of hook device 11.Outer ring 18 is enclosed within outside the inner ring 17, and pin plate 19 is trapezoidal, is hinged on by bearing pin on the outer muscle of inner ring 17, and its center of gravity departs from bearing pin inwards.All have slotted eye 20,21 on the Internal and external cycle barrel, the outer end of pin plate 19 is stretched in the outer ring slotted eye 21, and the inner end can be passed inner ring slotted eye 20 and stretches in the inner ring.The process of hanging, breaking off relations is as follows: conehead grasps stone, soil back by rope hoisting.When the Xiang Duan of the switching mechanism on the conehead 10 does not run into hook device outer ring 18, conehead cup 22 is upwards crossed pin plate 19, after rising to certain distance (several centimetres approximately), the top of switching mechanism 10 drives on the outer ring 18 and moves, pin plate 19 overturns inwards by gravity, its inner end extend in the inner ring 17, and is supported in the lower edge (shown in Fig. 4 left side) of inner ring slotted eye 20.Slowly put down conehead this moment, and conehead cup 22 can be hung on the pin plate 19.Before the unhook, conehead has descended and has opened, and outer ring 18 has been left on its top.Make cup 22 risings some distance as long as conehead is mentioned a little this moment, and then outer ring 18 glides by gravity, and the upper edge of its slotted eye 21 drives pin plate 19 to turn up (shown in Fig. 4 the right), and cup 22 can descend, and realization is broken off relations.

Behind the conehead percussion drilling, held by earth sometimes and increase resistance when promoting, influence operating efficiency.For this reason, a snubber 23 can be adorned, as shown in Figure 5 between fixed pulley 13 and pylon top.Snubber 23 is by being fixed on spring base 24, the compression spring 25 on the pylon and placing the T oblique crank Z 26 of spring 25 to form.Fixed pulley 13 is installed in the lower end of T oblique crank Z 26.When conehead did not contact earth, spring 25 was compressed; When conehead impacts the end in a flash, spring 25 drives fixed pulleys 13 and gos up, and gives awl first instantaneous rise power, is equivalent to loosening power of awl lobe of going deep in the earth.Resistance when promoting is reduced.

The utility model the resistance when creeping into and grasping is reduced, thereby operating efficiency is higher owing to improved the geometry of cone lobe. Owing to adopted pin plate formula hook device, not only increased security, and improved bearing capacity, thereby can increase conehead weight, amplify, creep into larger-diameter wellhole.

Claims (2)

1, a kind of dashing grabbed the formula trepan, comprise hoist engine, pylon 1, hang autocoupler 11, splicing cover 14 and Impact claw awl head to be opened/closed 2 on pylon, be provided with automatic on/off mechanism 10 on the dish 3 on the conehead, after the fixed pulley 13 that the hoist engine rope is walked around the pylon top joins with splicing cover 14, be wrapped in again on the upper and lower dish assembly pulley 6,7 of conehead, the awl lobe 5 that it is characterized in that said conehead 2, its vertical profile is a circular arc, the point angle θ of awl lobe 5 is 45 °～60 °.Said hook device 11 is by inner ring 17, the outer ring 18 that slides up and down of inner ring and being installed on the inner ring 17 outer muscle relatively, and the pin plate between inside and outside circle 19 is formed, have slotted eye 20,21 on inside and outside circle 17,18 barrels, pin plate 19 two ends are stretched into respectively in the slotted eye 20,21, pin plate 19 deviation of gravity center bearing pins and rely on inner ring 17 1 sides.

2, as claimed in claim 1 dashing grabbed the formula trepan, it is characterized in that said awl lobe 5 has six.

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