CN215908377U - Sealing device and stake machine of guide arm - Google Patents
Sealing device and stake machine of guide arm Download PDFInfo
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- CN215908377U CN215908377U CN202121754288.3U CN202121754288U CN215908377U CN 215908377 U CN215908377 U CN 215908377U CN 202121754288 U CN202121754288 U CN 202121754288U CN 215908377 U CN215908377 U CN 215908377U
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- guide rod
- flange
- sealing
- sealing ring
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Abstract
The utility model relates to the technical field of engineering machinery, in particular to a sealing device of a guide rod and a pile machine. The sealing device of the guide rod comprises: the flange comprises two half flanges which are oppositely arranged, and each half flange is suitable for being matched with the outer guide rod and the inner guide rod of the guide rod and is fixed on the outer guide rod; the first sealing ring is arranged between the half flange and the outer guide rod; and the second sealing ring is arranged between the half flange and the inner guide rod and comprises two half sealing rings which are oppositely arranged, and the half flange and the half sealing rings are arranged in a staggered manner. The flange is fixed on the outer guide rod, the first sealing ring is arranged between the flange and the outer guide rod, the second sealing ring is arranged between the flange and the inner guide rod, slurry, sand and stone are prevented from entering the inner portion of the guide rod due to the arrangement of the first sealing ring and the second sealing ring, mechanical sealing is adopted among the flange, the outer guide rod and the inner guide rod, multi-working-condition construction is achieved, the flange and the second sealing ring are divided into two parts for assembly, assembly is convenient, assembly time is shortened, and construction efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, in particular to a sealing device of a guide rod and a pile machine.
Background
At present, guide rods of ultra-deep gravel piles mainly have the following two forms:
the first is to connect an extension guide rod on a guide rod, connect a butt-joint guide rod on the lower part of the guide rod to be extended, and after reconnecting a water pipe and a cable with the butt-joint guide rod respectively, install the extension guide rod on the other side of the butt-joint guide rod, and when lifting up the guide rod, the extension guide rod needs to be removed, and the extension guide rod needs to be repeatedly installed or removed, so the engineering quantity is large, and a separate hoisting device needs to be equipped; when the extension guide rod is installed or disassembled, water and electricity are required to be installed in a separated mode, and construction time is long; the guide rod position is moved repeatedly during the dismouting, can't ensure the straightness that hangs down of final gravel pile.
The second type is a telescopic guide rod, during the gradual extension or contraction of the telescopic guide rod, water is continuously injected into the telescopic guide rod, and pressure water is filled in the telescopic guide rod, so that the water pressure in the telescopic guide rod is always greater than the water pressure of a pile hole, the pressure water in the telescopic guide rod is forced to flow into slurry in the pile hole from a sleeve gap of the telescopic guide rod, the dynamic balance of the water pressure is realized, sand stones in the slurry are prevented from entering and being clamped in the sleeve gap, the telescopic guide rod is only suitable for water injection construction working conditions, the construction working conditions are limited, the actual construction is difficult, the sleeve gap is at different depths during the gradual extension or contraction of the telescopic guide rod, if the pressure in the sleeve is small, the sealing effect is avoided, and if the pressure in the sleeve is too large, the hole wall is easily damaged; the continuous water injection causes the construction pollution to be continuously increased.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a sealing device of a guide rod and a pile machine, and aims to solve the problem that construction conditions are limited due to the fact that the guide rod is sealed by water in the prior art.
To achieve the above object, the present invention provides a sealing device for a guide rod, comprising: the flange comprises two half flanges which are oppositely arranged, and each half flange is suitable for being matched with the outer guide rod and the inner guide rod of the guide rod and is fixed on the outer guide rod; the first sealing ring is arranged between the half flange and the outer guide rod; and the second sealing ring is arranged between the half flange and the inner guide rod and comprises two half sealing rings which are oppositely arranged, and the half flange and the half sealing rings are arranged in a staggered manner.
Optionally, the angle of misalignment of the half flange and the half seal ring is in the range of 30 ° to 150 °.
Optionally, the semi-o-ring is a skeletal o-ring.
Optionally, a first arc-shaped groove is formed in the inner surface of the lower end of the half flange, and a part of the half sealing ring is located in the first arc-shaped groove.
Optionally, the half-flange is fixed to the outer guide bar by fasteners.
Optionally, the inner surface of the upper end of the half flange is provided with a second arc-shaped groove for mounting the first sealing ring.
Optionally, the first sealing ring is an O-ring, and the longitudinal section of the groove wall surface of the second arc-shaped groove is semicircular.
Optionally, the upper end face of the half flange is an arc-shaped face inclined upward toward the outer guide rod.
Optionally, the lower end surface of the half flange is an arc surface inclined downward toward the outer guide rod.
The utility model also provides a pile machine, comprising: the sealing device of the guide rod.
The technical scheme of the utility model has the following advantages: the flange is fixed on the outer guide rod, a first sealing ring is arranged between the flange and the outer guide rod, a second sealing ring is arranged between the flange and the inner guide rod, and slurry, sand and stone can be prevented from entering the guide rod by the arrangement of the first sealing ring and the second sealing ring. The flange, the outer guide rod and the inner guide rod are mechanically sealed, multi-working-condition construction is achieved, the flange and the second sealing ring are divided into two parts to be assembled, the half flange and the half sealing ring are directly placed at positions needing to be installed during assembly, then the half flange is fixed on the outer guide rod, assembly is facilitated, assembly time is shortened, construction efficiency is improved, and the problem that assembly time is long due to the fact that the sealing ring and the flange are sleeved on the upper rod of the guide rod due to the fact that the guide rod is long is effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 shows a schematic cross-sectional view of the inventive sealing arrangement of a guide rod in cooperation with the guide rod.
Description of reference numerals:
10. a half flange; 20. a first seal ring; 30. a semi-seal ring; 40. an outer guide rod; 41. a sleeve; 42. an internal bond; 50. an inner guide rod; 60. and (5) fastening the screw.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the sealing device for a guide bar of the present embodiment includes: the flange comprises two half flanges 10 which are oppositely arranged, and each half flange 10 is suitable for being matched with an outer guide rod 40 and an inner guide rod 50 of a guide rod and is fixed on the outer guide rod 40; the first seal ring 20 is arranged between the half flange 10 and the outer guide rod 40; the second sealing ring is arranged between the half flange 10 and the inner guide rod 50, the second sealing ring comprises two half sealing rings 30 which are oppositely arranged, and the half flange 10 and the half sealing rings 30 are arranged in a staggered mode.
By applying the sealing device of the embodiment, the flange is fixed on the outer guide rod 40, the first sealing ring 20 is arranged between the flange and the outer guide rod 40, the second sealing ring is arranged between the flange and the inner guide rod 50, and the first sealing ring 20 and the second sealing ring are arranged to prevent mud, sand and stone from entering the inner part of the guide rod. Mechanical sealing is adopted between the flange and the outer guide rod 40 and between the flange and the inner guide rod 50, multi-working-condition construction is achieved, the flange and the second sealing ring are divided into two parts to be assembled, during assembly, the half flange 10 and the half sealing ring 30 are directly placed at the position needing to be installed, then the half flange 10 is fixed on the outer guide rod, assembly is facilitated, assembly time is shortened, construction efficiency is improved, and the problem that assembly time is long due to the fact that the sealing ring and the flange are sleeved on the guide rod upper rod due to the fact that the guide rod is long is effectively solved.
In the present embodiment, the angle at which the half flange 10 and the half seal ring 30 are staggered is in the range of 30 ° to 150 °, in other words, the angle between the contact surface of the two half flanges 10 that are in contact after assembly and the contact surface of the two half seal rings 30 that are in contact after assembly is in the range of 30 ° to 150 °. A gap may exist between the two half flanges, and the staggered angle between the half flange 10 and the half sealing ring 30 is set within the range of 30-150 degrees, so that sealing is enhanced. Preferably, the half-flanges 10 and the half-gaskets 30 are offset by an angle of 90 °, i.e. the contact surfaces of the two half-flanges 10 that come into contact after assembly are arranged perpendicular to the contact surfaces of the two half-gaskets 30 that come into contact after assembly.
In the present embodiment, the semi-seal ring 30 is a skeleton seal ring, and the skeleton of the skeleton seal ring plays a role of reinforcement and enables the seal ring to maintain shape and tension.
In this embodiment, the inner surface of the lower end of the half flange 10 is provided with a first arc-shaped groove in which a portion of the half seal ring 30 is located. In operation, the half flange 10 receives the exogenic action of mud pressure or grit, and the first arc wall will be crowded in the part of skeleton sealing washer, and then forms interference fit sealed, and is sealed effectual.
In this embodiment, the half-flange 10 is fixed to the outer guide bar 40 by fasteners, which is simple and convenient. Specifically, the fastener is fastening screw 60, and outer guide arm 40 is equipped with the screw hole with fastening screw 60 threaded connection, and half flange 10 is equipped with the ladder through-hole with fastening screw 60 complex, and the ladder through-hole includes outer hole section and hole section, and the aperture of hole section is less than the aperture of outer hole section, and fastening screw 60's screwhead is arranged in the outer hole section, avoids screw and mud grit to collide with, reduces screw fastening strength.
In this embodiment, the inner surface of the upper end of the half flange 10 is provided with a second arc-shaped groove for mounting the first sealing ring 20, and the second arc-shaped groove is used for mounting the first sealing ring 20. Preferably, the first sealing ring is an O-shaped sealing ring, and the longitudinal section of the wall surface of the second arc-shaped groove is semicircular, so that the first sealing ring 20 is tightly attached to the wall surface of the second arc-shaped groove, and the sealing performance is improved. It should be noted that the longitudinal direction means a direction along the axis of the guide bar. Of course, the first seal ring may be a seal ring having another shape, and is not limited thereto.
In this embodiment, the upper end surface of the half flange 10 is an arc surface inclined upward toward the outer guide rod 40, and can remove sand and mud carried by the outer guide rod, wherein the arc surface is half of a conical surface with a small top and a large bottom, and the half of the conical surface can also be referred to as a half conical surface. Preferably, the included angle between the generatrix of the arc-shaped surface and the axis of the outer guide rod is 45 degrees, so that mud, sand and stone can flow conveniently.
In this embodiment, the lower end surface of the half flange 10 is an arc surface which is inclined downward toward the outer guide rod 40, and can remove sand and mud brought up by the inner guide rod, wherein the arc surface is half of a conical surface which is small at the bottom and large at the top, and the half of the conical surface can also be called a half conical surface. Preferably, the included angle between the generatrix of the arc-shaped surface and the axis of the outer guide rod is 45 degrees, so that mud, sand and stone can flow conveniently.
In the embodiment, each half flange comprises an upper section and a lower section, the upper end surface of the upper section is a semi-conical surface with a small upper part and a big lower part, the included angle between the generatrix of the semi-conical surface and the axis of the outer guide rod is 45 degrees, an arc-shaped groove is arranged on the inner surface of the upper section, the arc-shaped groove is used for installing an O-shaped sealing ring to prevent mud sand stone from entering the guide rod, the lower section is provided with an outer surface and an inner surface which are connected, the outer surface of the lower section is a conical surface with a small lower part and a big upper part, the included angle between the generatrix of the outer surface of the lower section and the axis of the outer guide rod is 45 degrees, the inner surface of the lower section is provided with the arc-shaped groove, the arc-shaped groove is used for mounting the part of the framework sealing ring, mud sand stone is prevented from entering the guide rod, the inner surface of the upper section and the inner surface of the lower section are connected through a step surface, the inner surface of the upper section is matched with the lower end of the outer guide rod 40, the inner surface of the lower section is matched with the inner guide rod 50, the part of the framework sealing ring is matched with the step surface, and the upper surface of the framework sealing ring is contacted with the lower end of the outer guide rod 40.
The utility model also provides a pile machine, which comprises: the sealing device of the guide rod. The flange is fixed on the outer guide rod 40, a first sealing ring 20 is arranged between the flange and the outer guide rod 40, a second sealing ring is arranged between the flange and the inner guide rod 50, and slurry, sand and stone can be prevented from entering the inner portion of the guide rod through the arrangement of the first sealing ring 20 and the second sealing ring. Mechanical sealing is adopted among the flange, the outer guide rod 40 and the inner guide rod 50, and multi-working-condition construction is achieved.
In this embodiment, the guide rod includes an outer guide rod 40 and an inner guide rod 50 disposed in the outer guide rod 40, the guide rod is a double-layer guide rod, when the sealing device is assembled, an O-ring is mounted on the outside of the outer guide rod 40, the lower end of the outer guide rod 40 and the inner guide rod 50 are sealed by two semicircular skeleton seal rings, the two semicircular half flanges and fastening screws are used to fix the half flanges on the outer guide rod 40, and the two semicircular skeleton seal rings and the two semicircular half flanges are mounted in a staggered manner by 90 degrees.
In this embodiment, the outer guide rod 40 is provided with an annular groove for installing the first seal ring 20, and the longitudinal section of the wall surface of the annular groove is semicircular, so that the first seal ring 20 is tightly attached to the wall surface of the annular groove, and the sealing performance is improved.
In this embodiment, the outer guide rod 40 includes a sleeve 41 and an inner key 42 disposed on the inner wall of the sleeve 41, and the outer wall of the inner guide rod has an outer key matching with the inner key, and the inner key matches with the outer key to ensure that the outer guide rod and the inner guide rod cannot rotate relatively.
In this embodiment, the pile machine is a vibratory rock drill or the like.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
1. the sealing device of the guide rod comprises two half flanges, two skeleton sealing rings, an O-shaped sealing ring and a fastening screw, the O-shaped sealing ring is arranged between the half flanges and the outer guide rod 40, the skeleton sealing ring is arranged between the half flanges and the inner guide rod 50, and a multi-layer mechanical sealing structure is adopted between the half flanges and the guide rod, so that multi-working-condition construction is realized, and the sealing of the guide rod in construction under different working conditions is realized.
2. The semi-flange includes upper segment and hypomere, the up end of upper segment is the contained angle of the axis of big end down's conical surface and its generating line and outer guide arm for 45, be equipped with the arc wall on the internal surface of upper segment, this arc wall is used for installing O shape sealing washer, it is inside to avoid mud grit to get into the guide arm, the hypomere has surface and the internal surface that is connected, the surface of hypomere is the contained angle of the axis of little end up's conical surface and its generating line and outer guide arm for 45, be equipped with the arc wall on the internal surface of hypomere, this arc wall is used for the part of installation skeleton sealing washer, it is inside to avoid mud grit to get into the guide arm, the semi-flange receives the exogenic action of mud pressure or grit at work, the latter half of skeleton sealing washer will be crowded arc wall, and then form interference fit and seal.
3. The half flanges and the framework sealing ring are installed in a staggered mode by 90, and sealing is enhanced.
4. The O-shaped sealing ring and the framework sealing ring form a two-layer sealing structure, sealing of the guide rod is enhanced, the problems of rod clamping, rod taking, rod smashing and the like are solved, cleaning and sealing of the guide rod are achieved, and the service life of the sealing piece is prolonged through the framework sealing ring.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (10)
1. A seal for a guide rod, comprising:
the flange comprises two half flanges (10) which are oppositely arranged, and each half flange (10) is suitable for being matched with an outer guide rod (40) and an inner guide rod (50) of the guide rod and fixed on the outer guide rod (40);
a first seal ring (20) arranged between the half-flange (10) and the outer guide rod (40);
the second sealing ring is arranged between the half flange (10) and the inner guide rod (50), the second sealing ring comprises two half sealing rings (30) which are oppositely arranged, and the half flange (10) and the half sealing rings (30) are arranged in a staggered mode.
2. A sealing device according to claim 1, characterized in that the angle by which the half-flange (10) and the half-sealing ring (30) are staggered is in the range 30 ° to 150 °.
3. A sealing device according to claim 1, characterized in that the semi-sealing ring (30) is a skeletal sealing ring.
4. A sealing arrangement according to claim 1, characterized in that the inner surface of the lower end of the half-flange (10) is provided with a first arc-shaped groove in which part of the half-sealing ring (30) is located.
5. Sealing device according to claim 1, characterized in that the half-flange (10) is fixed to the outer guide bar (40) by means of fasteners.
6. A sealing arrangement according to any one of claims 1-5, characterized in that the inner surface of the upper end of the half-flange (10) is provided with a second arc-shaped groove for mounting the first sealing ring (20).
7. The seal of claim 6, wherein said first seal ring is an O-ring and said second arcuate groove has a semicircular longitudinal cross-section along a wall surface thereof.
8. Sealing device according to any one of claims 1 to 5, characterized in that the upper end face of the half-flange (10) is an arc-shaped face inclined upwards towards the outer guide bar (40).
9. Sealing device according to any one of claims 1 to 5, characterized in that the lower end face of the half-flange (10) is an arc-shaped face sloping downwards towards the outer guide bar (40).
10. A pile machine, comprising: a sealing arrangement for a guide rod as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121754288.3U CN215908377U (en) | 2021-07-29 | 2021-07-29 | Sealing device and stake machine of guide arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121754288.3U CN215908377U (en) | 2021-07-29 | 2021-07-29 | Sealing device and stake machine of guide arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215908377U true CN215908377U (en) | 2022-02-25 |
Family
ID=80290262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121754288.3U Active CN215908377U (en) | 2021-07-29 | 2021-07-29 | Sealing device and stake machine of guide arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215908377U (en) |
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2021
- 2021-07-29 CN CN202121754288.3U patent/CN215908377U/en active Active
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