CN105672871A

CN105672871A - All-hydraulic drill power head with rear-mounted floating-ring

Info

Publication number: CN105672871A
Application number: CN201610214400.1A
Authority: CN
Inventors: 彭腊梅; 刘伟; 邓代传; 田小军; 杨英男
Original assignee: Shaanxi Tai He Science And Technology Ltd
Current assignee: Shaanxi Tai He Science And Technology Ltd
Priority date: 2016-04-07
Filing date: 2016-04-07
Publication date: 2016-06-15

Abstract

The invention relates to an all-hydraulic drill power head with a rear-mounted floating-ring, comprising a hydraulic chuck, a power head case body, a main shaft, a floating-ring body, a main shaft end cover, bolts, rotary seal rings and bearings, wherein the hydraulic chuck is connected with the power head case body, a plurality of rotary seal rings and bearings are arranged between the floating-ring body and the main shaft end cover; the floating-ring body, rotary seal rings and bearings form the rear-mounted floating-ring; the rear-mounted floating-ring is connected with the power head case body; and the main shaft end cover is arranged at the rear end of the main shaft and fixedly connected with the main shaft through the bolts. The all-hydraulic drill power head with the rear-mounted floating-ring is simple in structure, is convenient and quick in mounting and replacing the floating-ring without damaging the factory mounting states of other parts of the power head, improves the manufacturing yield of the case bodies and reduces the production cost.

Description

One joins the rear-mounted all hydraulic drive rig power head of oil jacket

Technical field

The present invention relates to coal mine gallery drilling field, specifically one joins the rear-mounted all hydraulic drive rig power head of oil jacket.

Background technology

During the work of full-hydraulic power head drill oild chuck, the oil jacket of joining based on floating-ring seal principle is generally adopted hydraulic oil oilhole on main shaft is delivered to chuck to realize the clamping of drilling rod and unclamp. Join oil jacket should and main shaft between have relatively high speed rotation, realize pressurize again and join oil, therefore processing and the matching requirements of joining oil jacket are higher, growth along with the working time, join oil jacket and engender following two situation: 1, join the abrasion of oil jacket inner sleeve and cause that the gap between itself and main shaft becomes larger, hydraulic system is revealed and is increased, and rig delivery efficiency reduces; 2, join that gap between oil jacket and main shaft is too small or the two axiality difference causes joining oil jacket inner sleeve and main shaft bonding. Therefore, more change oil jacket and even change the unique channel being to recover rig revolution Clamping Circuit with main shaft in the lump.

The oil jacket of joining of all hydraulic drive rig power head of present stage is arranged in power head box, other parts pulled down oild chuck, filter, fuel inlet fitting successively and be associated with main shaft are needed when more changing oil jacket, pull down from main shaft again and join oil jacket, multiple person cooperational is needed to complete, workload is big, and destroy the original installment state of the internal each parts of drill power head, it is also possible to the damage of parts can be caused.

Therefore, solve to join oil jacket and change the problem wasted time and energy it is necessary to design a kind of novel all hydraulic drive rig power head structure, it is achieved join the quick-replaceable of oil jacket.

Summary of the invention

It is an object of the invention to for deficiency of the prior art, one is provided to join the rear-mounted all hydraulic drive rig power head of oil jacket, to solve above-mentioned technical problem, its simple in construction, install that more to change oil jacket convenient and swift, and do not destroy the installment state of dispatching from the factory of unit head miscellaneous part.

For achieving the above object, the invention discloses following technical scheme:

One joins the rear-mounted all hydraulic drive rig power head of oil jacket, including oild chuck, power head box, main shaft, join oil jacket body, main shaft end cap, bolt, rotating seal ring and bearing, described oild chuck is connected with power head box, described joining is provided with multiple rotating seal ring and bearing between oil jacket body and main shaft end cap, described oil jacket body, rotating seal ring and the bearing composition of joining rear-mounted joins oil jacket, described rear-mounted oil jacket of joining is connected with power head box, main shaft end cap is set in rear-end of spindle, is bolted to connection between described main shaft end cap and main shaft.

One disclosed by the invention joins the rear-mounted all hydraulic drive rig power head of oil jacket, has the advantages that

1. joining oil jacket is rear-mounted structure, and hydraulic oil enters main shaft oilhole by joining the oilhole of oil jacket and main shaft end cap, is finally reached oild chuck, it is achieved the clamping of drilling rod and unclamping.When needing more to change oil jacket, it is only necessary to main shaft end cap is removed, can taking out and join oil jacket, it is not necessary to successively oild chuck and unit head and interior section assembly all being pulled down, thus realizing the purpose of quick change.

2. main shaft end cap is set in rear-end of spindle, the rotary motion of main shaft passes to main shaft end cap, main shaft end cap and join between oil jacket body generation relative rotary motion, when rotatory sealing was lost efficacy, have only to more change oil jacket or join oil jacket body and main shaft end cap, without changing main-spindle, decrease workload and saved maintenance cost simultaneously.

3. join oil jacket and be positioned at the outside of power head box, simplify the structure of power head box, improve the yield rate that casing manufactures, reduce production cost.

4. selecting rotating seal ring to prevent hydraulic oil from releasing, sealing property is reliable, changes convenient and swift.

Accompanying drawing explanation

Fig. 1 is present configuration schematic diagram;

Fig. 2 is existing all hydraulic drive rig power head body structure schematic diagram;

Description of reference numerals:

1. oild chuck, 2. power head box, 3. main shaft, 4. join oil jacket body, 5. main shaft end cap, 6. bolt, 7. rotating seal ring, 8. bearing.

9. oild chuck, 10. power head box, 11. filters, 12. fuel inlet fittings, 13. join oil jacket body, 14. bearings, 15. main shaft end caps, 16. main shafts.

Detailed description of the invention

Below in conjunction with embodiment and with reference to accompanying drawing, the invention will be further described.

As shown in Figure 2, existing all hydraulic drive rig power head body structure, existing oil jacket body 13 of joining is positioned at the inside of all hydraulic drive rig power head casing 10, hydraulic oil enters in the oilhole joining oil jacket body 13 and main shaft 16 by filter 11 and fuel inlet fitting 12, it is eventually fed oild chuck 9, realize the clamping of drilling rod and unclamp, when joining oil jacket body 13 or joining oil jacket body 13 and main shaft 16 lost efficacy when needing to change simultaneously, first oild chuck 9 entirety must be pulled down, then right side main shaft end cap 15 is pulled down successively, bearing 14, filter 11, the miscellaneous part that fuel inlet fitting 12 and main shaft left end are connected, could by main shaft 16 with join oil jacket body 13 entirety and take out and be replaced.

Refer to Fig. 1. one of the present invention joins the rear-mounted all hydraulic drive rig power head of oil jacket, including oild chuck 1, power head box 2, main shaft 3, join oil jacket body 4, main shaft end cap 5, bolt 6, rotating seal ring 7 and bearing 8, described oild chuck 1 is connected with power head box 2, described joining is provided with multiple rotating seal ring 7 and bearing 8 between oil jacket body 4 and main shaft end cap 5, when joining oil jacket body 4 and main shaft end cap 5 rotates against, bearing 8 is used for bearing the radial load of main shaft 3, rotating seal ring 7 can avoid hydraulic oil to release from both sides, the effectively pressure of protection oilhole mesohigh oil, in main shaft 3 rear end, main shaft end cap 5 is set, it is connected by bolt 6 is fixing between described main shaft end cap 5 and main shaft 3, described join oil jacket body 4, rotating seal ring 7 and bearing 8 form rear-mounted joins oil jacket, described rear-mounted oil jacket of joining is connected with power head box 2, rear-mounted join oil jacket and to be not arranged in power head box 2 internal, but at the rear side of power head box 2, when joining oil jacket body 4 and losing efficacy, as long as pulling down main shaft end cap 5 can be replaced. the present invention is relative to existing all hydraulic drive rig power head body structure, it is necessary to when more changing oil jacket, facilitates taking-up to join oil jacket, it is not necessary to oild chuck and unit head and interior section assembly are all pulled down successively, thus realizing the purpose of quick change.

The above is only the preferred embodiment of the present invention, is not intended to limit; Should be understood that, although the present invention being described in detail with reference to the various embodiments described above, it will be understood by those within the art that, the technical scheme described in the various embodiments described above still can be modified by it, or wherein some or all of technical characteristic carries out equivalent replacement; And these amendments and replacement, do not make the essence of corresponding technical scheme depart from the scope of various embodiments of the present invention technical scheme.

Claims

1. join the rear-mounted all hydraulic drive rig power head of oil jacket for one kind, including oild chuck, power head box, main shaft, join oil jacket body, main shaft end cap, bolt, rotating seal ring and bearing, it is characterized in that, described oild chuck is connected with power head box, described joining is provided with multiple rotating seal ring and bearing between oil jacket body and main shaft end cap, described join oil jacket body, rotating seal ring and bearing composition rear-mounted join oil jacket, described rear-mounted oil jacket of joining is connected with power head box, in rear-end of spindle, main shaft end cap is set, it is bolted to connection between described main shaft end cap and main shaft.