CN203463008U - Power head structure for horizontal directional drilling machine - Google Patents
Power head structure for horizontal directional drilling machine Download PDFInfo
- Publication number
- CN203463008U CN203463008U CN201320532466.7U CN201320532466U CN203463008U CN 203463008 U CN203463008 U CN 203463008U CN 201320532466 U CN201320532466 U CN 201320532466U CN 203463008 U CN203463008 U CN 203463008U
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- connecting axle
- power head
- drilling machine
- main spindle
- directional drilling
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Abstract
The utility model discloses a power head structure for a horizontal directional drilling machine and belongs to the technical field of the horizontal directional drilling machine. On the basis of an original structure, a cover (9) is additionally arranged; the cover (9) is arranged on the outer side of a power head spindle (16); the front end of the cover (9) is arranged at the rear end of a power head box (15); a circular mounting hole is formed in a center position of a rear base plate; and a connecting shaft (18), a V-shaped combined sealing ring (19), a pressing flange (10) and a central spindle (8) are also arranged in the cover (9) and are mounted between a slush pump input connector (4) and the power head spindle (16) in sequence. The power head structure for the horizontal directional drilling machine can ensure the front-and-back sliding of the power head spindle (16) relative to the power head box (15), and meanwhile, the position of the slush pump input connector (4) is fixed, so that smooth slush conveying in a slush input hose (3) arranged on the connector is ensured, the bending and even breaking phenomena caused by untimely moving in the original structure are avoided and the construction progress is ensured.
Description
Technical field
The utility model relates to a kind of swivel joint, and particularly a kind of horizontal directional drilling machine power head structure, belongs to 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 installation constructions such as water supply, electric power, coal gas, oil.In drilling machine construction process, in order reaching, to support hole wall, lubricated drilling rod, suspension drilling cuttings, to reduce the objects such as 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, slush pump input adapter is fixedly mounted on the rear portion of dynamic head main spindle, mud input flexible pipe is arranged on 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 unit head casing, and then driven rotary joint moves forward and backward with dynamic head main spindle, drive the mud input flexible pipe being arranged on swivel joint to move forward and backward simultaneously.Said structure can reduce the wearing and tearing of drill rod thread, but in 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 unit head main axle moving, and the phenomenon that 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 existing for above-mentioned prior art, the utility model provides a kind of horizontal directional drilling machine power head structure, still can be with respect to when sliding before and after 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 utility model proposes a kind of horizontal directional drilling machine power head structure, comprise mud input flexible pipe, slush pump input adapter and dynamic head main spindle, mud input flexible pipe is arranged on the rear end of slush pump input adapter side by side by bolt II and packing ring II and packing ring I, dynamic head main spindle front end inserts in unit head casing;
On the basis of said structure, in this device, also increased cover body, cover body is arranged on 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 circular mounting hole; In cover body, be also provided with connecting axle and mandrel; Wherein, connecting axle is stepped hollow shaft, and front end inserts in dynamic head main spindle, and connecting axle external surface is welded with installing plate, by installing plate, is fixed on 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 seals by being arranged on V-type combined seal ring and the connecting axle of connecting axle posterior medial, and V-type combined seal ring is fixed by being fixed on the supported flange of 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 I in groove.
Slush pump input adapter front end external surface is welded with mounting flange, and mandrel front end external surface is welded with it corresponding companion flange, and bolt I and packing ring I are arranged on after unit head casing on base plate through the bolt hole of mounting flange and companion flange successively.
Cover body front end external surface is welded with mounting flange, and mounting flange is fixed on unit head box back by bolt IV and packing ring IV.
The part external surface that connecting axle is inserted into dynamic head main spindle has a circle groove, is provided with O type circle II in groove.
Contrast traditional power head structure, in the utility model, be provided with a cover body, cover body front end is fixed on unit head box back, rear base plate has circular mounting hole, slush pump input adapter front end is fixed on cover body by circular mounting hole, and mud input flexible pipe is arranged on the rear end of slush pump input adapter side by side, simultaneously, the utility model has changed the annexation between dynamic head main spindle and slush pump input adapter: in dynamic head main spindle rear end, fixed a connecting axle, at slush pump input adapter front end, connected a mandrel, 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 being arranged in the internal recess of connecting axle rear end, and insertion portion distance is greater than dynamic head main spindle range, while guaranteeing that dynamic head main spindle slides in front and back and between slush pump input adapter, form a mud input channel that sealing is good, thereby ensureing dynamic head main spindle with respect to when sliding before and after unit head casing, slush pump input adapter position remains fixing, the same maintenance in mud input flexible pipe position being arranged on joint is fixing, avoided the phenomenon fractureing even because of the mobile bending occurring 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.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, bolt I; 2, packing ring I; 3, mud input flexible pipe; 4, slush pump input adapter; 5, bolt II; 6, packing ring II; 7, O type circle I; 8, mandrel; 9, cover body; 10, supported flange; 11, bolt III; 12, packing ring III; 13, bolt IV; 14, packing ring IV; 15, unit head casing; 16, dynamic head main spindle; 17, O type circle II; 18, connecting axle; 19, V-type combined seal ring; 20, bolt V; 21, packing ring V.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
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 circular mounting hole; In cover body 9, be also provided with connecting axle 18 and mandrel 8; 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 being arranged on the V-type combined seal ring 19 and connecting axle 18 sealings of connecting axle 18 posterior medials, and V-type combined seal ring 19 is fixed by being fixed on the supported flange 10 of 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 utility model, further improve, slush pump input adapter 4 front ends and mandrel 8 rear end interference part external surfaces have a circle groove, in groove, be provided with O type circle I 7, further guarantee slush pump input adapter 4 and the sealing that mandrel 8 is connected, guarantee that mud input is smooth and easy.
As the utility model, further improve, slush pump input adapter 4 front end external surfaces are welded with mounting flange, mandrel 8 front end external surfaces are welded with corresponding with it companion flange, and bolt II 5 and packing ring II 6 are arranged on the rear base plate of unit head casing 15 through the bolt hole of mounting flange and companion flange successively.Employing flange connects, and is convenient to dismounting and the maintenance of structure, for construction has been saved the time.
As the utility model, further improve, cover body 9 front end external surfaces are welded with mounting flange, and mounting flange is fixed on unit head casing 15 rear ends by bolt IV 13 and packing ring IV 14, is convenient to dismounting and the maintenance of structure, for construction has been saved the time.
As the utility model, further improve, the part external surface that connecting axle 18 is inserted into dynamic head main spindle 16 has a circle groove, in groove, be provided with O type circle II 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 input is smooth and easy.
In the course of work, slush pump input adapter 4, mandrel 8 and mud input flexible pipe 3 positions are fixed; The partial-length that inserts connecting axles 18 due to mandrel 8 front ends is 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 slush pump input adapter, through mandrel 8, connecting axle 18, is input in dynamic head main spindle.
Now the actuating unit that uses the dynamic structure of transmission and the utility model proposes is arranged on respectively in the horizontal directional drilling machine of same model, and uses simultaneously in identical building site, the contrast of mud input flexible pipe repair:
| ? | 2-3 month | 4-6 month | 7-12 month | 1-1.5 year | 1.5-2 year |
| Original structure | 0 | 1 | 2 | 3 | 3 |
| Structure of the present utility model | 0 | 0 | 0 | 0 | 0 |
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 utility model | 0 | 0 | 0 | 0 | 0 |
In sum, contrast traditional power head structure, the utility model 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 fractureing even because of the mobile bending occurring 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 circular mounting hole;
In cover body (9), be also provided with connecting axle (18) and mandrel (8); 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 being arranged on the V-type combined seal ring (19) and connecting axle (18) sealing of connecting axle (18) posterior medial, and V-type combined seal ring (19) is fixed by being fixed on the supported flange (10) of 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, on slush pump input adapter (4) periphery, have a circle groove, in groove, be provided with 0 type circle I (7).
3. 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 external surface is welded with mounting flange, described mandrel (8) back end outer surface is welded with corresponding with it companion flange, and packing ring II for mounting flange and companion flange (6) and bolt II (5) are arranged on the rear base plate of unit head casing (15).
4. according to a kind of horizontal directional drilling machine power head structure described in claim 1,2 or 3, it is characterized in that, described cover body (9) front end external surface is welded with mounting flange, and mounting flange is fixed on unit head casing (15) rear end by bolt IV (13) and packing ring IV (14).
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 0 type circle II (17) in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532466.7U CN203463008U (en) | 2013-08-29 | 2013-08-29 | Power head structure for horizontal directional drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532466.7U CN203463008U (en) | 2013-08-29 | 2013-08-29 | Power head structure for horizontal directional drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463008U true CN203463008U (en) | 2014-03-05 |
Family
ID=50175380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320532466.7U Withdrawn - After Issue CN203463008U (en) | 2013-08-29 | 2013-08-29 | Power head structure for horizontal directional drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463008U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437706A (en) * | 2013-08-29 | 2013-12-11 | 徐州徐工基础工程机械有限公司 | Power head structure for horizontal directional drilling machine |
| CN104633335A (en) * | 2015-01-30 | 2015-05-20 | 无锡市曙光高强度紧固件有限公司 | Hexagon bolt for pipe flange |
-
2013
- 2013-08-29 CN CN201320532466.7U patent/CN203463008U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437706A (en) * | 2013-08-29 | 2013-12-11 | 徐州徐工基础工程机械有限公司 | Power head structure for horizontal directional drilling machine |
| CN103437706B (en) * | 2013-08-29 | 2016-06-22 | 徐州徐工基础工程机械有限公司 | A kind of horizontal directional drilling machine power head structure |
| CN104633335A (en) * | 2015-01-30 | 2015-05-20 | 无锡市曙光高强度紧固件有限公司 | Hexagon bolt for pipe flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20160622 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20160622 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |