CN103437706A - Power head structure for horizontal directional drilling machine - Google Patents
Power head structure for horizontal directional drilling machine Download PDFInfo
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- CN103437706A CN103437706A CN2013103837047A CN201310383704A CN103437706A CN 103437706 A CN103437706 A CN 103437706A CN 2013103837047 A CN2013103837047 A CN 2013103837047A CN 201310383704 A CN201310383704 A CN 201310383704A CN 103437706 A CN103437706 A CN 103437706A
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- cover body
- power head
- connecting axle
- head main
- main spindle
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Abstract
The invention discloses a power head structure for a horizontal directional drilling machine, and belongs to the technical field of horizontal directional drilling machines. On the basis of an original structure, a cover body (9) is additionally arranged, the cover body (9) is arranged on the outer side of a power head main shaft (16), the front end of the cover body (9) is installed at the rear end of a power head box body (15), the center of a rear base plate is provided with a circular installation hole, meanwhile, a connecting shaft (18), a V-type combined sealing ring (19), a pressing flange (10) and a central spindle (8) are further arranged in the cover body (9), and the connecting shaft (18), the V-type combined sealing ring (19), the pressing flange (10) and the central spindle (8) are sequentially installed between a slime pump input connector (4) and the power head main shaft (16). According to the power head structure, the power head main shaft (16) is guaranteed to slide in a front-and-back mode relative to the power head box body (15), meanwhile, the position of the slime pump input connector (4) is fixed, slime in a slime input soft pipe (3) installed on the slime pump input connector (4) is guaranteed to be smoothly delivered, the phenomena of buckling and even breaking caused by non-timely movement in the original structure are avoided, and the construction progress is ensured.
Description
Technical field
The present invention relates to a kind of swivel joint, particularly a kind of horizontal directional drilling machine power head structure, belong to the horizontal directional drilling machine technical field.
Background technology
Horizontal directional drilling machine is a kind of under the condition of excavating earth surface face not, lays the construction machinery of multiple subsurface utility (pipeline, cable etc.), is widely used in the pipe installations constructions such as water supply, electric power, coal gas, oil.In the drilling machine construction process, in order to reach purposes such as supporting hole wall, lubricated drilling rod, suspension drilling cuttings, reduction construction resistance, need ceaselessly to slurry conveyed in drilling rod to drill bit, and as the critical piece of slurry transportation, can mud input flexible pipe inside keep clear, and is one of horizontal directional drilling machine key factor that whether can work.
In the structure of the horizontal directional drilling machine of most, the slush pump input adapter is fixedly mounted on the rear portion of dynamic head main spindle, mud input flexible pipe is arranged on the slush pump input adapter, dynamic head main spindle power adopts relocation mechanism to install, be that dynamic head main spindle can be with respect to sliding before and after the unit head casing, and then the driven rotary joint moves forward and backward with dynamic head main spindle, drive the mud input flexible pipe be arranged on swivel joint simultaneously and move forward and backward.Said structure can reduce the wearing and tearing of drill rod thread, but in the subsurface picture more complicated, when the demand of mud is larger, it is comparatively thick that mud input flexible pipe need be made, and the gravity of mud in pipe causes mud input flexible pipe to there will be due to can not be in time with the unit head main axle moving, and the phenomenon that the generation bending fractures even, hinder the timely conveying of mud, cause horizontal directional drilling machine to run well, affect construction speed.
Summary of the invention
The problem existed for above-mentioned prior art, the invention provides a kind of horizontal directional drilling machine power head structure, still can be with respect to when sliding before and after the unit head casing at dynamic head main spindle, fixing slush pump input adapter, guarantee to be arranged on joint in mud input flexible pipe slurry transportation unobstructed, thereby guarantee construction speed.
To achieve these goals, the present invention proposes a kind of horizontal directional drilling machine power head structure, comprises mud input flexible pipe, slush pump input adapter and dynamic head main spindle, and mud input flexible pipe passes through bolt
and packing ring
and packing ring
be arranged on side by side the rear end of slush pump input adapter, the dynamic head main spindle front end inserts in the unit head casing;
On the basis of said structure, also increased cover body in this device, cover body is arranged on the dynamic head main spindle outside, and the rear base plate center that front end is arranged on unit head casing (rear end, cover body) has the circular mounting hole; Also be provided with connecting axle and mandrel in cover body; Wherein, connecting axle is stepped hollow shaft, and front end inserts in dynamic head main spindle, and the connecting axle external surface is welded with installing plate, by installing plate, is fixed on the dynamic head main spindle rear end; Inside, connecting axle rear portion has groove; Mandrel is hollow shaft, front end inserts in connecting axle through base plate installing hole after cover body, the large 8-12cm of Length Ratio dynamic head main spindle range of insertion portion, mandrel is by the V-type combined seal ring and the connecting axle sealing that are arranged on the connecting axle posterior medial, and the V-type combined seal ring is fixed by the supported flange that is fixed on the connecting axle rear end; Slush pump input adapter front end and core back-end are fixed on plate outer surface after cover body successively, form sealing.Slush pump input adapter front end and core rear end interference part external surface have a circle groove, are provided with O type circle in groove
.
Slush pump input adapter front end external surface is welded with mounting flange, and mandrel front end external surface is welded with corresponding with it companion flange, bolt
and packing ring
through the bolt hole of mounting flange and companion flange, be arranged on after the unit head casing on base plate successively.
Cover body front end external surface is welded with mounting flange, and mounting flange passes through bolt
and packing ring
be fixed on the unit head box back.
The part external surface that connecting axle is inserted into dynamic head main spindle has a circle groove, is provided with O type circle in groove
.
Contrast traditional power head structure, be provided with a cover body in the present invention, the cover body front end is fixed on the unit head box back, rear base plate has the circular mounting hole, slush pump input adapter front end is fixed on cover body by the circular mounting hole, and mud input flexible pipe is arranged on the rear end of slush pump input adapter side by side, simultaneously, the present invention has changed the annexation between dynamic head main spindle and slush pump input adapter: in the dynamic head main spindle rear end, fixed a connecting axle, connected a mandrel at slush pump input adapter front end, core back-end is fixed on cover body equally, front end is inserted in connecting axle, and form a sealing with the V-type combined seal ring be arranged in the interior grooves of connecting axle rear end, and the insertion portion distance is greater than the dynamic head main spindle range, form a mud input channel that sealing is good while guaranteeing that dynamic head main spindle slides in front and back and between the slush pump input adapter, thereby ensureing dynamic head main spindle with respect to when sliding before and after the unit head casing, slush pump input adapter position remains fixing, the same maintenance in mud input flexible pipe position be arranged on joint is fixing, avoided the phenomenon fractureed even because of the mobile bending occurred not in time in original structure, thereby it is unobstructed to have guaranteed to be arranged in mud on joint input flexible pipe slurry transportation, , guarantee its construction speed.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, bolt
; 2, packing ring
; 3, mud input flexible pipe; 4, slush pump input adapter; 5, bolt
; 6, packing ring
; 7, O type circle
; 8, mandrel; 9, cover body; 10, supported flange; 11, bolt
; 12, packing ring
; 13, bolt
; 14, packing ring
; 15, unit head casing; 16, dynamic head main spindle; 17, O type circle
; 18, connecting axle; 19, V-type combined seal ring; 20, bolt
; 21, packing ring
.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of horizontal directional drilling machine power head structure, comprise mud input flexible pipe 3, slush pump input adapter 4 and dynamic head main spindle 16, mud input flexible pipe 3 is arranged on the rear end of slush pump input adapter 4 side by side, and dynamic head main spindle 16 front ends insert in unit head casing 15; On the basis of said structure, also comprise cover body 9,
Cover body 9 is arranged on dynamic head main spindle 16 outsides, and front end is arranged on unit head casing 15 rear ends, and the rear base plate center of cover body 9 has the circular mounting hole; Also be provided with connecting axle 18 and mandrel 8 in cover body 9; Wherein, connecting axle 18 is stepped hollow shaft, and front end inserts in dynamic head main spindle 16, and connecting axle 18 external surfaces are welded with installing plate, by installing plate, are fixed on dynamic head main spindle 16 rear ends; Connecting axle 18 inside, rear portion have groove; Mandrel 8 is hollow shaft, front end inserts in connecting axle 18 through the rear base plate installing hole of cover body 9, the large 8-12cm of Length Ratio dynamic head main spindle 16 range of insertion portion, mandrel 8 is by the V-type combined seal ring 19 and connecting axle 18 sealings that are arranged on connecting axle 18 posterior medials, and V-type combined seal ring 19 is fixing by the supported flange 10 that is fixed on connecting axle 18 rear ends; Slush pump input adapter 4 front ends and mandrel 8 rear ends are fixed on the rear plate outer surface of cover body 9 successively, form sealing.
As the present invention, further improve, slush pump input adapter 4 front ends and mandrel 8 rear end interference part external surfaces have a circle groove, are provided with O type circle in groove
7, further guarantee slush pump input adapter 4 and the sealing that mandrel 8 is connected, guarantee that the mud input is smooth and easy.
As the present invention, further improve, slush pump input adapter 4 front end external surfaces are welded with mounting flange, and mandrel 8 front end external surfaces are welded with corresponding with it companion flange, bolt
5 and packing ring
6 bolts hole that pass successively mounting flange and companion flange are arranged on the rear base plate of unit head casing 15.The employing flange connects, and is convenient to dismounting and the maintenance of structure, for the time has been saved in construction.
As the present invention, further improve, cover body 9 front end external surfaces are welded with mounting flange, and mounting flange passes through bolt
13 and packing ring
14 are fixed on unit head casing 15 rear ends, are convenient to dismounting and the maintenance of structure, for the time has been saved in construction.
As the present invention, further improve, the part external surface that connecting axle 18 is inserted into dynamic head main spindle 16 has a circle groove, is provided with O type circle in groove
17, further strengthen the sealing of structure, while guaranteeing to slide in dynamic head main spindle 16 front and back, further guarantee dynamic head main spindle 1 and the sealing that connecting axle 18 is connected, guarantee that mud inputs smooth and easy.
In the course of work, slush pump input adapter 4, mandrel 8 and mud input flexible pipe 3 positions are fixed; Because mandrel 8 front ends insert the partial-length of connecting axle 18 than the large 8-12cm of dynamic head main spindle 16 range, therefore, when dynamic head main spindle 16 slides before and after in unit head casing 15, mandrel 8 and connecting axle 18 form an input channel all the time, mud is inputted flexible pipe 3 by mud and is entered from the slush pump input adapter, through mandrel 8, connecting axle 18, is input in dynamic head main spindle.
Now will use the dynamic structure of transmission and the actuating unit of the present invention's proposition to be arranged on respectively in the horizontal directional drilling machine of same model, and use simultaneously in identical building site, the contrast of mud input flexible pipe repair:
Mud input flexible pipe is changed the contrast of situation:
| ? | 2-3 month | 4-6 month | 7-12 month | 1-1.5 year | 1.5-2 year |
| Original structure | 0 | 1 | 1 | 1 | 1 |
| Structure of the present invention | 0 | 0 | 0 | 0 | 0 |
In sum, contrast traditional power head structure, the present invention is when having ensured that dynamic head main spindle 16 slides with respect to unit head casing 15 front and back, slush pump input adapter 4 positions are fixed, guaranteed to be arranged in mud on joint input flexible pipe 3 slurry transportation unobstructed, avoid the phenomenon fractureed even because of the mobile bending occurred not in time in original structure, guaranteed its construction speed.
Claims (5)
1. a horizontal directional drilling machine power head structure, comprise mud input flexible pipe (3), slush pump input adapter (4) and dynamic head main spindle (16), described mud input flexible pipe (3) is arranged on the rear end of slush pump input adapter (4) side by side, and described dynamic head main spindle (16) front end inserts in unit head casing (15);
It is characterized in that, also comprise cover body (9), described cover body (9) is arranged on dynamic head main spindle (16) outside, and front end is arranged on unit head casing (15) rear end, and the rear base plate center of cover body (9) has the circular mounting hole;
Also be provided with connecting axle (18) and mandrel (8) in cover body (9); Wherein, described connecting axle (18) is stepped hollow shaft, and front end inserts in dynamic head main spindle (16), and connecting axle (18) external surface is welded with installing plate, by installing plate, is fixed on dynamic head main spindle (16) rear end; Connecting axle (18) inside, rear portion has groove; Described mandrel (8) is hollow shaft, front end inserts in connecting axle (18) through base plate installing hole after cover body (9), the large 8-12cm of Length Ratio dynamic head main spindle (16) range of insertion portion, mandrel (8) is by the V-type combined seal ring (19) and connecting axle (18) sealing that are arranged on connecting axle (18) posterior medial, and V-type combined seal ring (19) is fixing by the supported flange (10) that is fixed on connecting axle (18) rear end; Described slush pump input adapter (4) front end and mandrel (8) rear end are fixed on the rear plate outer surface of cover body (9) successively, form sealing.
2. a kind of horizontal directional drilling machine power head structure according to claim 1, it is characterized in that, described slush pump input adapter (4) front end and mandrel (8) rear end interference fit, have a circle groove on slush pump input adapter (4) periphery, is provided with O type circle in groove
(7).
3. a kind of horizontal directional drilling machine power head structure according to claim 1, it is characterized in that, described mud 6 pump input adapter (4) front end external surfaces are welded with mounting flange, described mandrel (8) back end outer surface is welded with corresponding with it companion flange, mounting flange and companion flange packing ring
and bolt (6)
(5) be arranged on the rear base plate of unit head casing (15).
4. according to claim 1,2 or 3 described a kind of horizontal directional drilling machine power head structures, it is characterized in that, described cover body (9) front end external surface is welded with mounting flange, and mounting flange passes through bolt
and packing ring (13)
(14) be fixed on unit head casing (15) rear end.
5. a kind of horizontal directional drilling machine power head structure according to claim 1, is characterized in that, its external surface of part that described connecting axle (18) is inserted into dynamic head main spindle (16) has a circle groove, is provided with O type circle in groove
(17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310383704.7A CN103437706B (en) | 2013-08-29 | 2013-08-29 | A kind of horizontal directional drilling machine power head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310383704.7A CN103437706B (en) | 2013-08-29 | 2013-08-29 | A kind of horizontal directional drilling machine power head structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103437706A true CN103437706A (en) | 2013-12-11 |
| CN103437706B CN103437706B (en) | 2016-06-22 |
Family
ID=49691412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310383704.7A Active CN103437706B (en) | 2013-08-29 | 2013-08-29 | A kind of horizontal directional drilling machine power head structure |
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| Country | Link |
|---|---|
| CN (1) | CN103437706B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275395A (en) * | 2015-11-17 | 2016-01-27 | 恒天九五重工有限公司 | Power head structure for horizontal directional drill |
| CN108561069A (en) * | 2018-01-08 | 2018-09-21 | 王本勋 | A kind of road surface punch device |
| CN112502649A (en) * | 2020-12-16 | 2021-03-16 | 中煤地第二勘探局集团有限责任公司 | Audio frequency environmental protection rig unit head send thick liquid device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10110585A (en) * | 1996-10-07 | 1998-04-28 | Daiwa Kiko Kk | Swivel device in excavator |
| CN102226374A (en) * | 2011-06-10 | 2011-10-26 | 湖南文理学院 | Rotary power head of coaxial transmission drilling machine |
| CN203114160U (en) * | 2013-01-21 | 2013-08-07 | 中煤科工集团西安研究院 | Underground coal mine directional drilling machine big through hole power head with braking function |
| CN203129945U (en) * | 2012-12-29 | 2013-08-14 | 陈海斌 | Power head of drilling machine |
| CN203463008U (en) * | 2013-08-29 | 2014-03-05 | 徐州徐工基础工程机械有限公司 | Power head structure for horizontal directional drilling machine |
-
2013
- 2013-08-29 CN CN201310383704.7A patent/CN103437706B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10110585A (en) * | 1996-10-07 | 1998-04-28 | Daiwa Kiko Kk | Swivel device in excavator |
| CN102226374A (en) * | 2011-06-10 | 2011-10-26 | 湖南文理学院 | Rotary power head of coaxial transmission drilling machine |
| CN203129945U (en) * | 2012-12-29 | 2013-08-14 | 陈海斌 | Power head of drilling machine |
| CN203114160U (en) * | 2013-01-21 | 2013-08-07 | 中煤科工集团西安研究院 | Underground coal mine directional drilling machine big through hole power head with braking function |
| CN203463008U (en) * | 2013-08-29 | 2014-03-05 | 徐州徐工基础工程机械有限公司 | Power head structure for horizontal directional drilling machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275395A (en) * | 2015-11-17 | 2016-01-27 | 恒天九五重工有限公司 | Power head structure for horizontal directional drill |
| CN108561069A (en) * | 2018-01-08 | 2018-09-21 | 王本勋 | A kind of road surface punch device |
| CN112502649A (en) * | 2020-12-16 | 2021-03-16 | 中煤地第二勘探局集团有限责任公司 | Audio frequency environmental protection rig unit head send thick liquid device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103437706B (en) | 2016-06-22 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |