CN2507987Y - Middle and small drilling machine - Google Patents

Abstract

A middle and small sized drill is improved and realized on the basis of the drills of the prior art, and the key point lies in that a host machine moving mechanism is arranged, a clutch of the utility model is a clutch of a cone-shaped clutch mechanism, and a windlass of the utility model is a windlass of a single contracting brake plate-type clutch mechanism. The utility model has reasonable design, the host machine can move conveniently, the clutch has large transmission power, and the windlass has stable and safe slinging, which is beneficial for extending the application area of the drill on the aspect of drilling apertures and the requirement on the terrane.

Description

A kind of middle-size and small-size rig

Technical field: the utility model relates to a kind of rig.

Background technology: in the prior art, middle-size and small-size rig main frame does not all have travel mechanism mostly, can only creep into the aperture less than 200 millimeters well, when aperture during greater than 200 millimeters, owing to limited by drill configuration, and can't realize changing big drill bit and extract the operation of heavy caliber core barrel.Therefore limited the range of application of middle-size and small-size rig.Its clutch generally all is a plate clutch.This plate clutch transmission power is less, be mainly used in creeping into of small-bore, middle intensity rock stratum, and when being used for larger caliber or creeping into than hard formation, then often occur skidding, generating heat, particularly when shock loading, skid, the heating meeting is more serious so that friction plate damages, and seriously causes speed of application to reduce greatly.Its hoist engine generally all be the planet gear type structure, and the two ends periphery of reel is all established band-type brake.This hoist engine is complex structure not only, the cost height, and can only be used for the lifting of drilling tool in the more small-bore and following rock stratum of the intensity drilling process, when rig creeps into larger aperture or during than hard formation, the crane capacity of this hoist engine is then obviously not enough, the clutch heating of partly skidding occurs, and promotes shakiness, even hoisting heavy downslide, poor stability can appear.

Technology contents: the purpose of this utility model is to provide for overcoming the above-mentioned defective of existing in prior technology that a kind of main frame can move, the clutch transmission power is big, and the hoist engine crane capacity is strong, the middle-size and small-size rig that stability and safety is good.The utility model is to improve realization on the basis of existing technology, and it comprises clutch and hoist engine, and its main points are to be provided with main frame travel mechanism on the frame underframe.This travel mechanism can be provided with below the borer frame underframe is longer than frame underframe and bottom girder correspondingly, establishes a power transmission shaft between two foundation beams, respectively adorns a gear in two foundation beam inboards on this power transmission shaft, corresponding said gear installing tooth bar on the frame underframe; A sprocket cassette is installed in the corresponding power transmission shaft of bottom girder one side position; Establish two sprocket wheels that connected by chain in this sprocket cassette, wherein a sprocket wheel is loaded on sprocket cassette top, and axle head is established a handwheel in the sprocket cassette outside, and the another sprocket wheel is loaded on an end of above-mentioned said power transmission shaft.Its clutch.Its clutch is to adopt conical clutch mechanism, and the brake rim inner surface that promptly is connected with powered pulley is a taper seat, and inboard passive drum is connected with main shaft key, and its outside is corresponding with the brake rim internal conical surface, and is provided with the friction band; Establish spring base in the passive drum, tension spring is housed, the outer end of passive drum is established bearing and castellated pushing mechanism successively.Its hoist engine, its band-type brake are one group, and only the end periphery at reel is provided with, clutch is the disc type clutch, simultaneously establishes clutch lever in the reel end cap outside, and interlocks with the screw rod of clutch, the clutch lever outside is established bearing and castellated pushing mechanism successively on the elevator arbor.

The utility model is reasonable in design, and the first can realize easily that main frame moves, and then when realizing creeping into more than 200 millimeters wellhole, changes big drill bit and extract large aperture core barrel operation; It two is that the clutch transmission power is big, the non-slip heating of friction plate; It three is that the hoist engine crane capacity is strong, and stability and safety is good, helps enlarging rig in the range of application of creeping into aspect aperture and the suitable rock stratum.

Description of drawings:

Fig. 1 is a front view of the present utility model.

Fig. 2 is the backsight sectional view of clutch of the present utility model.

Fig. 3 is that the master of hoist engine of the present utility model looks sectional view.

Fig. 4 is that sectional view is looked on a main frame of the present utility model travel mechanism left side.

The specific embodiment: according to shown in Figure 1,1 is main frame travel mechanism among the figure, the 2nd, and clutch, the 3rd, hoist engine.Main frame travel mechanism 1 as shown in Figure 4.24 is underframe of borer frame among the figure, be provided with below this underframe and be longer than underframe and bottom girder correspondingly 28,28 on two foundation beams are established a power transmission shaft 29, respectively adorn a gear 27 in the inboard of two foundation beams 28 on this power transmission shaft, and corresponding said gear 27 is equipped with tooth bar 26 on the frame underframe 24; The corresponding power transmission shaft of bottom girder 28 1 sides 29 positions are provided with a sprocket cassette 21, be provided with two sprocket wheels 22,23 that connected by chain in this sprocket cassette, its middle sprocket 22 is located at the top of sprocket cassette 21, its axle head is equipped with a handwheel 20 in the sprocket cassette outside, and another sprocket wheel 23 is loaded on an end of said power transmission shaft 29.Rotate handwheel 20, can pass through sprocket wheel 22 successively, chain and sprocket wheel 23, power transmission shaft 29, gear 27 and tooth bar 26 drive frame underframe 24 and slide along bottom girder 28, thereby realize that the rig main frame moves.In drilling process, when needs are changed big drill bit or carried the heavy caliber core barrel, but reversing handle retreats main frame, get out of the way well head, change the operation of big drill bit or extraction heavy caliber core barrel, end of operation, the forward rotation handwheel passes main frame to former allocation again, continues to creep into operation.

Its clutch 2 as shown in Figure 2,4 is powered pulley among the figure, the brake rim 7 of clutch is connected with powered pulley 4, inner face is a taper seat, inboard passive drum 9 is connected with main shaft 12 keys, and its outside is corresponding with the internal conical surface of brake rim 7, and is provided with to rub and is with 8; Be provided with spring base 5 in the passive drum 9, tension spring 6 is housed, the outer end of passive drum 9 is provided with bearing 10 and castellated pushing mechanism 11 successively.Clutch of the present utility model promotes passive drum 9 outer moving by the tensile force that gives of tension spring 6, make friction on the passive drum be with 8 to combine closely with brake rim 7, realize the combination of clutch, thereby powered pulley 4 successively by brake rim 7, friction with 8, passive drum 9 and with the connecting key of main shaft 12, give main shaft 9 with transmission of power.When needs separate, handle the handle of castellated pushing mechanism 11, castellated pushing mechanism 11, and by the passive drum 9 of bearing 10 promotions, overcome the tensile force that gives of tension spring 6, make passive drum 9, and the drive friction is with 8 axially to move inwards, separate with brake rim, thus the separation of realization the utility model clutch.

Its hoist engine 3 as shown in Figure 3,17 is reels among the figure, the left end periphery of reel is established one group of band-type brake 16, establishes disc type clutch 18 in the reel left end, has four driven friction alternate with active friction plate; Clutch lever 15 is established in the left end cap of reel 17 outside, and interlocks with the screw rod of clutch 18, in the left side of clutch lever 3, is provided with bearing 14 and castellated pushing mechanism 13 on the elevator arbor 19 successively.This hoist engine, its clutch 6 promotes its gland by the compaction forces of giving of its tension spring, and its driven friction and active friction plate are compressed, and realizes combination, and elevator arbor 19 drives reel 17 and rotates, and can implement lifting this moment.The handle of handling castellated pushing mechanism 13 promotes clutch lever 15 by bearing 14, under the effect of clutch lever 15, the screw rod of clutch 18 overcomes the tension force of its tension spring and does axially outwards to move, spurring its platen simultaneously moves to left, make its active and passive friction plate lose pressure and separate, reel 17 can dally, and then by self gravitation descended by the lifting thing this moment, adopts band-type brake 4 to control the speed of decline.

Claims (2)

1, a kind of middle-size and small-size rig comprises clutch (2) and hoist engine (3), it is characterized in that:

A, be provided with main frame travel mechanism (1);

B, clutch are conical clutch mechanism, the brake rim (7) that is connected with powered pulley (4), inner face is a taper seat, inboard passive drum (9) connects with main shaft (12) key, its outside is corresponding with brake rim (7) internal conical surface, and is provided with friction band (8), is provided with spring base (5) in the passive drum (9), tension spring (6) is housed, and passive drum (9) outer end is provided with bearing (10) and castellated pushing mechanism (11) successively;

The band-type brake of c, hoist engine (16) is one group, clutch (18) is the disc type clutch, the end cap peripheral hardware clutch lever (15) of reel (17), and interlock with the screw rod of clutch (18), clutch lever (15) outside is established bearing (14) and castellated pushing mechanism (13) successively on the elevator arbor (19).

2, rig according to claim 1, it is characterized in that said main frame travel mechanism is that underframe and bottom girder (28) correspondingly are longer than in setting below frame underframe (24), adorn a power transmission shaft (29) between two foundation beams, in the inboard of two foundation beams (28) gear (27) is housed respectively on this power transmission shaft, frame underframe (24) is gone up corresponding said gear (27) tooth bar (26) is housed; The bottom girder corresponding power transmission shafts of (28) one sides (29) position is provided with sprocket cassette (21), be provided with two sprocket wheels (22 that connect by chain in this sprocket cassette, 23), a sprocket wheel (22) wherein is located at the top of sprocket cassette (21), axle head is provided with a handwheel (20) in the sprocket cassette outside, and another sprocket wheel (23) is loaded on an end of said power transmission shaft (29).

Images