CN201420501Y

CN201420501Y - Hydraulic rotary table

Info

Publication number: CN201420501Y
Application number: CN200920014406XU
Authority: CN
Inventors: 项风义; 张仁杰; 邓鲁宁; 吴国宏; 张龙江; 隋海
Original assignee: FUXIN CHIYU PETROLEUM MACHINERY Co Ltd
Current assignee: FUXIN CHIYU PETROLEUM MACHINERY Co Ltd
Priority date: 2009-06-08
Filing date: 2009-06-08
Publication date: 2010-03-10
Anticipated expiration: 2019-06-08

Abstract

The utility model relates to a hydraulic rotary table, belonging to the field of oilfield well repair machines, which comprises a shell (1), a worm (2), an oil filling screwed plug (3), an upper cover(4), an upper gland (13), a bearing I and a bearing II (14, 26), a caulking ring (15), an oil drain screwed plug (17), a protecting cover (18), a retaining collar (19), a lower gland (20), a worm wheel (5) and the like. A hollow shaft (21) is fixed by a flat key (22) in the worm wheel (5) driven by the worm (2) driven by a gear motor. A slip seat (9) is installed in the hollow shaft (21). A slip(10) is installed on the slip seat (9) and is fixed on the slip seat (9) by using a slip gland (8) and a bolt. The slip gland (8) is fixed on the hollow shaft (21) by using a screw. Compared with thedrilling rotary table and the major repair rotary table, the utility model has the advantages that the volume is small, the weight is light and the manufacturing cost is low; the hydraulic rotary table has normal and reverse rotation functions and the use is convenient; the safety is reliable; and the well repair expenses are saved.

Description

Hydraulic swivel head

Technical field

The utility model belongs to oil field well workover machinery, particularly a kind of hydraulic swivel head.

Background technology

At present, the oil field, home and abroad has only drilling well rotating disk and overhaul rotating disk, and its volume, power are big, need with the supporting use of offshore boring island, also needing to use rotating disk, purpose in recent years in the light maintenance operation is that the work of light maintenance ability is not just gone up overhaul facilities, can reduce workover cost.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned technical deficiency, provides that a kind of volume is little, in light weight, cost is low, saves the hydraulic swivel head of workover cost.

The technical scheme that the utility model technical solution problem adopts is: hydraulic swivel head comprises housing, worm screw, oiling plug, loam cake, upper press cover, bearing one, two, spacer ring, the plug of draining the oil, protective cover, baffle ring, lower cover, worm gear, rear end cap, drive end bearing bracket, hydraulic motor, being characterized in that gear motor drives in the worm gear that worm screw drives fixes a hollow shaft with flat key, slip spider is housed in the hollow shaft, be equipped with on the slip spider slips and with the slips gland be bolted on the slip spider, the slips gland is screwed on hollow shaft.

The beneficial effects of the utility model are: with the drilling well rotating disk with overhaul rotating disk specific volume is little, in light weight, cost is low; Can directly be contained on the well head, with the supporting use of light maintenance implement; Make workover rig provide hydraulic power source, need not be equipped with spcific power as power; Have the forward and backward function, easy to use; Have locking function when stopping boring, the tubing string reversing is safe and reliable when preventing to stop boring; The fluid motor-driven impact force is little, when producing bit bouncing equipment is not had injury; The throttle of control workover rig can be controlled the rotating speed of rotating disk, belongs to stepless speed regulation; Save workover cost.

Description of drawings

Embodiment specifies below in conjunction with accompanying drawing.

Fig. 1 is a hydraulic swivel head structure sectional view.

Fig. 2 is the A-A sectional view of Fig. 1.

Among the figure, the 1-housing; The 2-worm screw; 3-oiling plug; The 4-loam cake; The 5-worm gear; The 6-screw; The 7-dust cap; 8-slips gland; The 9-slip spider; The 10-slips; The 11-hydraulic motor; The 12-screw; The 13-upper press cover; 14-bearing one; The 15-spacer ring; The 16-oil ga(u)ge; The 17-plug of draining the oil; The 18-protective cover; The 19-baffle ring; The 20-lower cover; The 21-hollow shaft; The 22-flat key; The 23-rear end cap; The 24-hex nut; 25-adjusts gasket ring; 26-bearing two; The 27-drive end bearing bracket; The 28-spacer;

The specific embodiment

Embodiment, with reference to accompanying drawing 1,2, in hydraulic swivel head housing 1 side opening by rear end cap 23, drive end bearing bracket 27, bearing 2 26, support worm screw 2, hex bolts passes rear end cap 23 and drive end bearing bracket 27 holes are screwed into housing 1, and, be equipped with every magnetic 28 between drive end bearing bracket 27 and worm screw with the sealing ring sealing.Be equipped with in the rear end cap 23 and adjust that gasket ring 25 is supported by hex bolts and hex nut 24 and locking is pressed on the bearing 2 26 outer shroud end faces.Hydraulic motor 11 splined shafts insert worm screw 2.Be fixed on the drive end bearing bracket 27 with hex bolts in the splined hole, spend in the main aperture that disposes by loam cake 4, bearing 1, baffle ring 19, spacer ring 15, protective cover 18 support hollow shafts 21 with housing 1 side opening 90, hex bolts passes loam cake 4 holes and is screwed into housing 1, and screw 6 passes upper press cover 13 and lower cover 20 holes and is screwed into loam cake 4 and housing 1 envelope pressure seal ring in annular groove.Dust cap 7 bottom ring sets are threaded on the hollow shaft 21 at upper press cover 13 boss, and worm gear 5 is sleeved on the hollow shaft 21 and connects and worm screw 2 engagements with flat key 22.Aerial coupling is equipped with the slips 10 of polygon external surface and polygon endoporus in the polygon of the slip spider 9 of polygon external surface, the hole that hex bolts passes slips gland 8 is screwed into slip spider 9, slip spider 9 mates in the polygon endoporus on hollow shaft 21 tops of packing into, and screw 12 is screwed into hollow shaft 21.Oiling plug 3, oil ga(u)ge 16, the plug 17 of draining the oil are installed on the housing 1, and housing is shaped on screw on 1 bottom surface.

During hydraulic swivel head work, be fixed on the wellhead flange after being screwed into screw on housing 1 bottom surface with bolt, be connected with high-pressure hose between hydraulic control system and the hydraulic motor 11 that drives hydraulic swivel head, the drilling rod of the coupling of in slips 10, packing into, when operating hydraulically operated control system to the hydraulic motor 11 that drives hydraulic swivel head during for hydraulic oil, hydraulic motor 11 rotations drive worm screw 2 successively, worm gear 5, hollow shaft 21, slip spider 9, slips 10, the drilling rod rotation, drilling rod can axially be free to slide in slips 10, the suspension hook of handling suspension drilling rod can make drilling rod move up and down and finish feeding and control the pressure of the drill, and screw 12 can prevent that slip spider 9 from skidding off in hollow shaft 21.

Claims

1, a kind of hydraulic swivel head, comprise housing (1), worm screw (2), oiling plug (3), loam cake (4), upper press cover (13), bearing one, two (14,26), spacer ring (15), the plug (17) of draining the oil, protective cover (18), baffle ring (19), lower cover (20), worm gear (5), rear end cap (23), drive end bearing bracket (27), hydraulic motor (11), it is characterized in that gear motor drives in the worm gear (5) that worm screw (2) drives fixes a hollow shaft (21) with flat key (22), slip spider (9) is housed in the hollow shaft (21), slips (10) is housed on the slip spider (9) and with slips gland (8) be bolted on the slip spider (9), slips gland (8) is screwed on hollow shaft (21).