CN211647972U - Rotary joint for horizontal directional drilling machine and horizontal directional drilling machine - Google Patents
Rotary joint for horizontal directional drilling machine and horizontal directional drilling machine Download PDFInfo
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- CN211647972U CN211647972U CN202020247977.4U CN202020247977U CN211647972U CN 211647972 U CN211647972 U CN 211647972U CN 202020247977 U CN202020247977 U CN 202020247977U CN 211647972 U CN211647972 U CN 211647972U
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- rotating shaft
- drilling machine
- end cover
- directional drilling
- shell
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Abstract
The utility model discloses a rotary joint for a horizontal directional drilling machine and the horizontal directional drilling machine, wherein the rotary joint comprises a rotary shaft and a fixed shaft, the rotary shaft is connected with a power head, the fixed shaft is connected with a conveying hose, and the rotary joint rotates along with the power head to realize the conveying of slurry media; the tail end of the rotating shaft is inserted into the shell, and the shell and the rotating shaft are supported through the bearing, so that the coaxiality of the shell and the rotating shaft is ensured; two sides of the shell form a closed space through an end cover and a sealing piece I so as to prevent impurities from entering; the fixed shaft is inserted into the tail end of the rotating shaft and then connected to the end cover, and a sealing piece II is arranged between the rotating shaft and the fixed shaft to prevent impurities from entering. The utility model ensures the coaxiality of the rotating shaft and the fixed shaft in the working process by adding the bearing, thereby avoiding abrasion; in addition, the sealing element is added, so that the condition that the bearing is not externally corroded due to the entering of impurities such as slurry is further ensured.
Description
Technical Field
The utility model relates to a directional rig technical field of level specifically is a directional rig of level is with rotary joint.
Background
In the existing horizontal directional drilling machine, when a common rotary joint is installed, due to the fact that no external force is used for supporting, the rotary shaft and the fixed shaft cannot be coaxial, the sealing ring just achieving the sealing effect in the rotary use process is not uniformly stressed, inevitable abrasion is caused, the sealing performance of the whole structure is affected, the service life of the horizontal directional drilling machine is shortened, the cost is increased, maintenance personnel are frequently arranged for maintenance, and the labor cost is increased.
Disclosure of Invention
In order to overcome the defect that exists among the above-mentioned prior art, the utility model provides a level is rotary joint for directional rig ensures coaxially, improves life, reduces use cost.
The utility model adopts the technical proposal that:
a rotary joint for a horizontal directional drilling machine comprises a rotary shaft and a fixed shaft, wherein the rotary shaft is connected to a power head, the fixed shaft is connected with a conveying hose, and the rotary joint rotates along with the power head to convey a slurry medium; the tail end of the rotating shaft is inserted into the shell, and the shell and the rotating shaft are supported through the bearing, so that the coaxiality of the shell and the rotating shaft is ensured; two sides of the shell form a closed space through an end cover and a sealing piece I so as to prevent impurities from entering; the fixed shaft is inserted into the tail end of the rotating shaft and then connected to the end cover, and a sealing piece II is arranged between the rotating shaft and the fixed shaft to prevent impurities from entering.
Further, the end cover comprises an end cover I and an end cover II; the end cover I is fixed on the rear axial face of the shell through a bolt I, and the end cover II is fixed on the front axial face of the shell through a bolt II.
Furthermore, the fixed shaft is connected with the end cover I, the fixed shaft and the end cover I share the bolt I, and the bolt I penetrates through the fixed shaft and the end cover I and then is screwed on the shell.
Further, the sealing element I is a sealing ring I and a sealing ring II; sealing washer I is installed between end cover I and rotation axis, sealing washer II is installed between end cover II and rotation axis.
Further, the sealing element II is a spacer bush and a water seal; the spacer bush and the water seal are placed between the rotating shaft and the fixed shaft and are compressed through the fastening part.
Further, the fastening parts are a pressure plate and a compression screw; the convex part of the pressing plate is abutted to the position of the sealing element II, the pressing plate is fixed on the tail end axial surface of the rotating shaft through a pressing screw, and the sealing element II is pressed tightly through adjusting the pressing screw.
Furthermore, the fixed shaft is provided with an observation window, and the compression screw is adjusted by a wrench through the observation window.
Furthermore, a grease nipple is arranged on the shell and used for filling grease into the shell to ensure the lubrication of the bearing.
Furthermore, a grease channel is arranged on the rotating shaft, and grease is injected into the sealing element II through an oil injection port in the fixed shaft.
Furthermore, a flange is arranged on the radial surface of the rotating shaft, a preset distance is reserved between the flange and the front end of the rotating shaft, and the flange is fixed at the rear end of the power head through a plurality of groups of bolts.
The horizontal directional drilling machine is provided with the rotary joint.
The utility model discloses beneficial effect:
the utility model ensures the coaxiality of the rotating shaft and the fixed shaft in the working process through the increase of the bearing, thereby avoiding abrasion and ensuring the sealing performance of the whole structure; in addition, increased water seal and spacer, increased overall structure's waterproof nature and leakproofness, further guaranteed that the bearing can not take place the condition of outside corruption because of the entering of impurity such as mud, further improved life, the cost is reduced.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of a rotary joint structure of the present invention;
fig. 2 is a cross-sectional view of the rotary joint of the present invention.
In the figure: 1-rotating shaft, 2-shell, 3-grease nozzle, 4-end cover I, 5-pressing plate, 6-compression screw, 7-fixed shaft, 8-sealing ring I, 9-spacer bush, 10-water seal, 11-bearing, 12-end cover II, 13-sealing ring II.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention.
The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the rotary joint for the horizontal directional drilling machine comprises a rotary shaft 1 and a fixed shaft 7, wherein the rotary shaft 1 is connected to a power head, the fixed shaft 7 is connected with a conveying hose, and the rotary joint rotates along with the power head to convey a slurry medium; the tail end of the rotating shaft 1 is inserted into the shell 2, and the shell 2 and the rotating shaft 1 are supported through the bearing 11, so that the coaxiality of the shell 2 and the rotating shaft 1 is ensured; two sides of the shell 2 form a closed space through an end cover and a sealing piece I to prevent impurities from entering; the fixed shaft 7 is inserted into the rear end of the rotating shaft 1 and then coupled to the end cap, and a sealing member II is provided between the rotating shaft 1 and the fixed shaft 7 to prevent the entry of foreign materials.
A preferred embodiment of the above embodiment is given below with respect to the end cap and seal i:
with continued reference to FIG. 2, the end cap includes end cap I4 and end cap II 12; end cover I4 is fixed on the back axial face of casing 2 through bolt I, and end cover II 12 is fixed on the preceding axial face of casing 2 through bolt II. The fixed shaft 7 is connected with the end cover I4, the fixed shaft 7 and the end cover I4 share a bolt I, and the bolt I penetrates through the fixed shaft 7 and the end cover I4 and then is screwed on the shell 2.
The sealing element I is a sealing ring I8 and a sealing ring II 13; sealing washer I8 is installed between end cover I4 and rotation axis 1, and sealing washer II 13 is installed between end cover II 12 and rotation axis 1.
A preferred embodiment of the above embodiment with respect to seal ii is given below:
the sealing piece II is a spacer bush 9 and a water seal 10; the spacer 9 and the water seal 10 are placed between the rotating shaft 1 and the stationary shaft 7 and are pressed by a fastening member.
Further scheme: the fastening components are a pressure plate 5 and a compression screw 6; the bulge of the pressure plate 5 abuts against the sealing element II, the pressure plate 5 is fixed on the tail end axial surface of the rotating shaft 1 through a compression screw 6, and the sealing element II is compressed through adjusting the compression screw 6.
The more recent scheme is as follows: the fixed shaft 7 is provided with an observation window, and the compression screw 6 is adjusted by a wrench through the observation window.
The preferred scheme is as follows: the casing 2 is provided with a grease nipple for filling the casing 2 with grease to ensure the lubrication of the bearing 11.
The rotating shaft 1 is provided with a grease channel, and grease is injected into the sealing element II through an oil injection port on the fixed shaft 7.
Continuing to refer to fig. 2, a flange is arranged on the radial surface of the rotating shaft 1, a preset distance is reserved between the flange and the front end of the rotating shaft 1, and the flange is fixed at the rear end of the power head through a plurality of groups of bolts.
It should be noted that the above is a detailed description of the specific implementation of the present invention, but the present invention is not limited to the above-described specific embodiments, which are only examples, and any equivalent modifications and substitutions of the rotary joint are within the scope of the present invention for those skilled in the art.
In conclusion, the rotary joint is fixed at the rear end of the power head and floats together with the power head, and the rotary joint is mainly used for conveying slurry media. The rotating shaft 1 is connected to a power head through a bolt and rotates along with the power head, the shell 2 and the rotating shaft 1 are supported through a bearing 11, the coaxiality between the shell 2 and the rotating shaft 1 is guaranteed, the shell 2 is fixed by a limiting plate to limit free rotation and can only slide together with the rotating shaft 1, the two sides of the shell 2 form a closed space by an end cover I4, an end cover II 12, a seal I8 and a seal ring II 13, impurities such as slurry can be placed in the closed space, grease is filled into the shell 2 through a grease nipple 3 to guarantee lubrication of the bearing, a fixed shaft 7 is connected to the shell 2, a spacer 9 and a water seal 10 are placed between the rotating shaft 1 and the fixed shaft 7 to play a sealing role, the seal ring is pressed tightly through a pressing plate 5 and a pressing screw 6, and the seal ring can be adjusted by a spanner through an observation port on, have the butter way on the rotation axis 1, the oiling mouth on the accessible fixed axle 7 pours into the butter into the sealing washer into, reduces coefficient of friction, improves the sealing washer life-span.
The utility model also discloses a directional rig of level installs foretell rotary joint.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (11)
1. A rotary joint for a horizontal directional drilling machine comprises a rotary shaft and a fixed shaft, wherein the rotary shaft is connected to a power head, the fixed shaft is connected with a conveying hose, and the rotary joint rotates along with the power head to convey a slurry medium; the method is characterized in that:
the tail end of the rotating shaft is inserted into the shell, and the shell and the rotating shaft are supported through the bearing, so that the coaxiality of the shell and the rotating shaft is ensured;
two sides of the shell form a closed space through an end cover and a sealing piece I so as to prevent impurities from entering;
the fixed shaft is inserted into the tail end of the rotating shaft and then connected to the end cover, and a sealing piece II is arranged between the rotating shaft and the fixed shaft to prevent impurities from entering.
2. The swivel joint for a horizontal directional drilling machine according to claim 1, wherein: the end cover comprises an end cover I and an end cover II;
the end cover I is fixed on the rear axial face of the shell through a bolt I, and the end cover II is fixed on the front axial face of the shell through a bolt II.
3. The swivel joint for a horizontal directional drilling machine according to claim 2, wherein: the fixed shaft is connected with the end cover I, shares a bolt I with the end cover I, and is screwed on the shell after penetrating through the fixed shaft and the end cover I.
4. The swivel joint for a horizontal directional drilling machine according to claim 1, wherein: the sealing element I is a sealing ring I and a sealing ring II;
sealing washer I is installed between end cover I and rotation axis, sealing washer II is installed between end cover II and rotation axis.
5. The swivel joint for a horizontal directional drilling machine according to claim 1, wherein: the sealing element II is a spacer bush and a water seal;
the spacer bush and the water seal are placed between the rotating shaft and the fixed shaft and are compressed through the fastening part.
6. The swivel joint for a horizontal directional drilling machine according to claim 5, wherein: the fastening parts are pressure plates and compression screws;
the convex part of the pressing plate is abutted to the position of the sealing element II, the pressing plate is fixed on the tail end axial surface of the rotating shaft through a pressing screw, and the sealing element II is pressed tightly through adjusting the pressing screw.
7. The swivel joint for a horizontal directional drilling machine according to claim 6, wherein: the fixed shaft is provided with an observation window, and the compression screw is adjusted by a wrench through the observation window.
8. The swivel joint for a horizontal directional drilling machine according to claim 1, wherein: and the shell is provided with a grease nipple for filling grease into the shell to ensure the lubrication of the bearing.
9. The swivel joint for a horizontal directional drilling machine according to claim 1, wherein: and a grease channel is arranged on the rotating shaft, and grease is injected into the sealing element II through an oil injection port on the fixed shaft.
10. The swivel joint for a horizontal directional drilling machine according to claim 1, wherein: and a flange is arranged on the radial surface of the rotating shaft, a preset distance is reserved between the flange and the front end of the rotating shaft, and the flange is fixed at the rear end of the power head through a plurality of groups of bolts.
11. A horizontal directional drilling machine, characterized in that: a rotary joint according to any one of claims 1 to 10 is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020247977.4U CN211647972U (en) | 2020-03-04 | 2020-03-04 | Rotary joint for horizontal directional drilling machine and horizontal directional drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020247977.4U CN211647972U (en) | 2020-03-04 | 2020-03-04 | Rotary joint for horizontal directional drilling machine and horizontal directional drilling machine |
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| Publication Number | Publication Date |
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| CN211647972U true CN211647972U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020247977.4U Active CN211647972U (en) | 2020-03-04 | 2020-03-04 | Rotary joint for horizontal directional drilling machine and horizontal directional drilling machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476860A (en) * | 2022-03-09 | 2022-05-13 | 徐州徐工基础工程机械有限公司 | Multi-pipeline reel structure and groove cleaning machine |
-
2020
- 2020-03-04 CN CN202020247977.4U patent/CN211647972U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476860A (en) * | 2022-03-09 | 2022-05-13 | 徐州徐工基础工程机械有限公司 | Multi-pipeline reel structure and groove cleaning machine |
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