CN104563914A

CN104563914A - Hook-type elevator

Info

Publication number: CN104563914A
Application number: CN201510061210.6A
Authority: CN
Inventors: 郭威; 陈光华; 贾瑞; 孙友宏; 王元; 孙中谨
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2015-02-06
Filing date: 2015-02-06
Publication date: 2015-04-29
Anticipated expiration: 2035-02-06
Also published as: CN104563914B

Abstract

The invention discloses a hook-type elevator which comprises an elevator main body, hooks, a lifting ring and a hoop, wherein the upper part of the elevator main body is provided with a solid column, and the lower part of the elevator main body is provided with a cylinder; an upper flange is arranged at the upper part of the cylinder, four square holes are uniformly distributed in the lower part of the cylinder, a lower flange is arranged below the square holes, and rib plates are welded on both sides of each square hole; the hooks are embedded in the square holes and are mounted on the rib plates through hinge pins, and a dill can be clamped and released by rotating the hooks; a connection sleeve is welded at the lower end of the lifting ring, and the solid column is arranged on the connection sleeve in a sleeving manner; the solid column is sleeved by a thrust ball bearing, a spring and a thick gasket in sequence, and the thrust ball bearing, the spring and the thick gasket are fixed by tightening the gasket and a nut; and the hoop is in threaded connection with the upper flange, and the working state that a drilling tool is clamped by the hooks can be locked so long as the hoop is screwed to a lower extreme position. The hook-type elevator can be automatically separated from the drilling tool on a tower when being used for lifting the drilling tool, and can prevent accidental falling of a faucet top hanger to reduce aloft work load and potential safety hazards.

Description

hook-type elevator

Technical field

The invention belongs to rig field of tool in engineering machinery, relate to a kind of device of landing drilling tool in drilling machine construction process, be specifically related to a kind of hook-type elevator.

Background technology

Elevator is in drilling machine construction process, is used for carrying a kind of instrument hanging drilling tool time lifting drilling tool (mainly drilling rod).By the difference of extracting mode, elevator is divided into sliding ring type elevator, hand-scrubbing type elevator and tiltedly takes off formula elevator etc.Wherein with the manual dislodging elevator technology relative maturity that sliding ring type elevator is representative, but carry and draw in drilling tool process, need workman to set out when being separated with drilling tool, inevitably need operation on workman's tower.Tiltedly de-formula elevator can realize tower departs from drilling tool automatically, but easily landing occurs when drilling tool is not suspended to, and during lifting water tap, existence and the fire hose crown hang the risk automatically disengaged.

Summary of the invention

The object of this invention is to provide one to be automatically separated with drilling tool on tower, prevent the fire hose crown from hanging the hook-type elevator come off.

The present invention includes drop handle, elevator main body, hook, spring, thrust ball bearing and garter spring, elevator body top is divided into solid post, bottom is divided into cylinder, cylinder top is provided with upper flange, uniform four square openings in cylinder bottom, set flange below square opening, each square opening both sides are all welded with floor; Hook is three grades of stairsteppings, to be embedded in square opening and to be supported by lower flange, hook and floor by pinned connection and can around bearing pin ° within the scope of rotate, the cavity that hook could stretch into and stretch out elevator main body realizes that card is got, unfreezing drilling tool; Garter spring is arranged on upper flange by screw thread, and garter spring can turn in the axial direction, the path that when garter spring is in lower limit position, hook capable of blocking rotates around bearing pin, the duty of lockable hook; Drop handle bottom is welded with coupling sleeve, and coupling sleeve is enclosed within solid post; Thrust ball bearing, spring, thick washer to be sleeved on successively in solid post and to be seated on the interior step of coupling sleeve, thrust ball bearing, spring and thick washer to be tightened be fixed on solid post by packing ring and nut; Time unloaded, initial tension of spring is greater than elevator self gravitation, and carry spring when drawing drilling tool and compressed, thick washer is seated on the step of the coupling sleeve second level, by the spring that compresses can drilling tool upwards play time promote elevator main body and hook is up, prevent unexpected unfreezing.

When the present invention uses, tool joint is connected to after on drilling rod, start to carry and draw work, first, turn-knob garter spring is up, abdicates the rotating channel of hook, tool joint is made to stretch into cavity, the simultaneously Rotary hanging hook of elevator main body, make hook snap in the annular groove of tool joint, so far, elevator achieves card and gets drilling tool; Then, operation hoist engine promotes drop handle, and spring is compressed, and thick washer is seated on the step of the coupling sleeve second level, and so far, the load that elevator is subject to is delivered to coupling sleeve by thick washer, and drilling rod can be carried smoothly to be drawn; Finally, carry after drawing drilling tool to precalculated position, fix drilling tool, operation hoist engine makes elevator lean on gravity descending, thick washer is separated with coupling sleeve second level step, spring recovers former length, and continue descending then tool joint and promote hook rotation, hook blocks annular groove, operation hoist engine makes the up and drilling rod connecting of elevator, depart from, so far, elevator achieves and being automatically separated of tool joint.

Carrying in the embodiment hanging fire hose crown extension, first, turn-knob garter spring is up, abdicate the rotating channel of hook, make the fire hose crown hang the cavity stretching into elevator main body, simultaneously Rotary hanging hook, make hook snap in the annular groove of fire hose crown extension, so far, elevator achieves card water intaking tap top and hangs; Then, knob garter spring comes downwards to lower limit position, the operating position of locking hook, and operation hoist engine loosens wire rope, and so far, elevator achieves carries extension water tap.

Compared with prior art, the invention has the beneficial effects as follows: elevator automatically can be separated with drilling tool on tower, and can prevent the fire hose crown from hanging accidental, reduce workload and the potential safety hazard of work high above the ground.

Accompanying drawing explanation

Fig. 1 is the sectional structure schematic diagram of hook-type elevator of the present invention.

Fig. 2 is that A-A in Fig. 1 is to sectional view.

Fig. 3 is using state schematic diagram of the present invention.

Fig. 4 is that B-B in Fig. 3 is to sectional view.

In figure: 1-drop handle, 1a-coupling sleeve, 2-elevator main body, 2a-solid post, 2b-upper flange, 2c-cylinder, 2d-floor, 2e-square opening, 2f-lower flange, 3-links up with, 4-nut, 5-packing ring, 6-thick washer, 7-spring, 8-thrust ball bearing, 9-garter spring, 10-bearing pin, 11-tool joint, 11a-annular groove.

Detailed description of the invention

As depicted in figs. 1 and 2, the present invention includes drop handle 1, elevator main body 2, hook 3, spring 7, thrust ball bearing 8 and garter spring 9, elevator main body 2 top is divided into solid post 2a, bottom is divided into cylinder 2c, cylinder 2c top is provided with upper flange 2b, uniform four the square opening 2e in cylinder 2c bottom, set flange 2f below square opening 2e, each square opening 2e both sides are all welded with floor 2d; Hook 3 is three grades of stairsteppings, to be embedded in square opening 2e and to be supported by lower flange 2f, and hook 3 and floor 2d are connected by bearing pin 10 and also can rotate within the scope of 90 ° around bearing pin 10, links up with 3 cavitys that can stretch into and stretch out elevator main body 2 and realizes that card is got, unfreezing drilling tool; Garter spring 9 is arranged on upper flange 2b by screw thread, and garter spring 9 can turn in the axial direction, the path that when garter spring 9 is in lower limit position, hook 3 capable of blocking rotates around bearing pin 10, the duty of lockable hook 3; Drop handle 1 bottom is welded with coupling sleeve 1a, and coupling sleeve 1a is enclosed within solid post 2a; Thrust ball bearing 8, spring 7, thick washer 6 to be sleeved on successively on solid post 2a and to be seated on the interior step of coupling sleeve 1a, thrust ball bearing 8, spring 7 and thick washer 6 to be tightened be fixed on solid post 2a by packing ring 5 and nut 4; Time unloaded, spring 7 pretightning force is greater than elevator self gravitation, carry spring 7 when drawing drilling tool to be compressed, thick washer 6 is seated on the step of the coupling sleeve 1a second level, by the spring 7 that compresses can drilling tool upwards play time promote elevator main body 2 and hook 3 is up, prevent unexpected unfreezing.

As shown in Figure 3 and Figure 4, when the present invention uses, tool joint 11 is connected to after on drilling rod, starts to carry and draw work, first, turn-knob garter spring 9 is up, abdicate the rotating channel of hook 3, make tool joint 11 stretch into cavity, the simultaneously Rotary hanging hook 3 of elevator main body 2, make hook 3 snap in the annular groove 11a of tool joint 11, so far, elevator achieves card and gets drilling tool; Then, operation hoist engine promotes drop handle 2, and spring 7 is compressed, and thick washer 6 is seated on the step of the coupling sleeve 1a second level, and so far, the load that elevator is subject to is delivered to coupling sleeve 1a by thick washer 6, and drilling rod can be carried smoothly to be drawn; Finally, carry after drawing drilling tool to precalculated position, fix drilling tool, operation hoist engine makes elevator lean on gravity descending, thick washer 6 is separated with coupling sleeve 1a second level step, spring 7 recovers former length, continues descending, and tool joint 11 promotes hook 3 and rotates, and hook 3 blocks annular groove 11a, operation hoist engine makes the up and drilling rod connecting of elevator, 11 depart from, and so far, elevator achieves and being automatically separated of tool joint 11.

Carrying in the embodiment hanging fire hose crown extension, first, turn-knob garter spring 9 is up, abdicate the rotating channel of hook 3, make the fire hose crown hang the cavity stretching into elevator main body 2, simultaneously Rotary hanging hook 3, make hook 3 snap in the annular groove of fire hose crown extension, so far, elevator achieves card water intaking tap top and hangs; Then, knob garter spring 9 comes downwards to lower limit position, the operating position of locking hook 3, and operation hoist engine loosens wire rope, and so far, elevator achieves carries extension water tap.

Claims

1. a hook-type elevator, it is characterized in that: include drop handle (1), elevator main body (2), hook (3), spring (7), thrust ball bearing (8) and garter spring (9), elevator main body (2) top is divided into solid post (2a), bottom is divided into cylinder (2c), cylinder (2c) top is provided with upper flange (2b), uniform four square openings (2e) in cylinder (2c) bottom, flange (2f) is set in square opening (2e) below, and each square opening (2e) both sides are all welded with floor (2d); Hook (3) is three grades of stairsteppings, to be embedded in square opening (2e) and to be supported by lower flange (2f), hook (3) and floor (2d) are connected by bearing pin (10) and also can rotate within the scope of 90 ° around bearing pin (10), link up with the cavity that (3) can stretch into and stretch out elevator main body (2) and realize that card is got, unfreezing drilling tool; Garter spring (9) is arranged on upper flange (2b) by screw thread, and garter spring (9) can turn in the axial direction, the path that when garter spring (9) is in lower limit position, hook capable of blocking (3) rotates around bearing pin (10), the duty of lockable hook (3); Drop handle (1) bottom is welded with coupling sleeve (1a), and coupling sleeve (1a) is enclosed within solid post (2a); The solid post (2a) that thrust ball bearing (8), spring (7), thick washer (6) is sleeved on successively goes up and is seated on the interior step of coupling sleeve (1a), thrust ball bearing (8), spring (7) and thick washer (6) to be tightened be fixed on solid post (2a) by packing ring (5) and nut (4); Time unloaded, spring (7) pretightning force is greater than elevator self gravitation, carry spring when drawing drilling tool (7) to be compressed, thick washer (6) is seated on the step of coupling sleeve (1a) second level, by the spring (7) that compresses can drilling tool upwards play time promote elevator main body (2) and link up with (3) up.