Slurry umbrella device for top drive driving
Technical Field
The utility model relates to a mud umbrella technical field especially relates to a be used for top to drive driven mud umbrella device.
Background
The top driving drilling device is a drilling device which directly drives a drilling tool to perform rotary drilling by using power from the top of a derrick and completes various drilling operations such as circulating drilling fluid, connecting an upright post, screwing up and unscrewing a button and reversely reaming.
The mud umbrella is usually adopted to prevent mud from entering the reduction gearbox, but the existing mud umbrella is not ideal in corrosion resistance, high temperature resistance, friction resistance and deformation resistance due to structural reasons, can not prevent well liquid from entering a box body of the reduction gearbox well, is short in replacement period, is difficult to maintain and the like, and greatly increases labor cost and the cost of the top-driving drilling device.
Therefore, there is a need to develop a mud-parachute device for top drive driving, which has better corrosion resistance, high temperature resistance, friction resistance and deformation resistance, improves the replacement cycle, reduces the cost of the top drive drilling device, and improves the economic efficiency of enterprises.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.
Therefore, the utility model provides a be used for top to drive driven mud umbrella device.
In view of this, the utility model provides a be used for top to drive driven mud umbrella device, mud umbrella device includes:
the umbrella comprises an umbrella body, wherein a main shaft hole and a special-shaped accommodating groove communicated with the first shaft hole are formed in the umbrella body, a first fixing hole is formed in the umbrella body, and a first fixing bolt is arranged in the first fixing hole;
the short wear-resistant sleeve is arranged in the special-shaped accommodating groove, the inner diameter of the short wear-resistant sleeve is the same as the size of the spindle hole, and the umbrella body is fixedly connected with the short wear-resistant sleeve through the first fixing bolt;
the upper sealing support is sleeved on the short wear-resistant sleeve in an externally sleeved mode, the upper sealing support is located in the special-shaped accommodating groove, a second fixing hole is formed in the upper sealing support, and a second fixing bolt is arranged in the second fixing hole;
the slurry umbrella device is sleeved on a main shaft of the reduction gearbox through the main shaft hole and the short wear-resistant sleeve, and the upper sealing support is fixedly connected with an upper transparent cover of the reduction gearbox through a second fixing bolt.
Further, the upper seal holder further comprises:
the first sealing groove is formed in the side wall, in contact with the umbrella body, of the upper sealing support, and a combined sealing ring is arranged in the first sealing groove.
Further, the upper seal holder further comprises:
the second sealing groove is arranged on the lower wall of the upper sealing bracket, which is contacted with the upper transparent cover;
the third sealing groove is arranged on the side wall of the upper sealing support, which is in contact with the upper transparent cover;
and O-shaped sealing rings are arranged in the second sealing groove and the third sealing groove.
Further, the mud umbrella device still includes:
the straight-through type oil filling cup is arranged on the umbrella body, and butter is filled into the cavity of the umbrella body and the upper sealing support through the straight-through type oil filling cup.
Furthermore, a rotating framework oil seal is arranged between the upper sealing support and the short wear-resistant sleeve.
Furthermore, a sealing gasket is arranged on the contact surface of the umbrella body and the short wear-resistant sleeve, a mounting hole is formed in the sealing gasket, and the mounting hole is matched with the first fixing bolt.
Furthermore, the umbrella body and the upper sealing support are both made of metal materials.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
the mud umbrella device of metal material has better corrosion resistance, high temperature resistance, antifriction, and umbrella body and last sealing support pass through fixing bolt fastening, increase the pressure between the part to improve the seal performance between the part, also be convenient for change, installation and clearance improve work efficiency, be equipped with three seal groove on the last sealing support, improve the leakproofness of mud umbrella device.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
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 for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic view of an installation of a mud saver apparatus according to an embodiment of the invention;
figure 2 shows a schematic view of an umbrella body according to an embodiment of the invention;
fig. 3 shows a schematic view of an upper seal holder according to an embodiment of the present invention;
fig. 4 shows a schematic view of a gasket according to an embodiment of the invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
the sealing structure comprises 1 first fixing bolt, 2 upper transparent covers, 3 straight-through type oil filling cups, 4 upper sealing supports, 401 second fixing holes, 402 first sealing grooves, 403 second sealing grooves, 404 third sealing grooves, 5 combined sealing rings, 6O-shaped sealing rings, 7 mounting holes, 8 sealing gaskets, 9 umbrella bodies, 901 spindle holes, 902 special-shaped accommodating grooves, 903 first fixing holes, 10 rotating framework oil seals, 11 second fixing bolts, 12 short wear-resistant sleeves and 13 spindles.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Examples
Fig. 1 shows a schematic view of an installation of a mud saver apparatus according to an embodiment of the invention; figure 2 shows a schematic view of an umbrella body according to an embodiment of the invention; fig. 3 shows a schematic view of an upper seal holder according to an embodiment of the present invention.
As shown in fig. 1 to 3, the present embodiment provides a mud-umbrella device for a top drive, the mud-umbrella device comprising:
the umbrella comprises an umbrella body 9, wherein a main shaft hole 901 and a special-shaped accommodating groove 902 communicated with the main shaft hole 901 are formed in the umbrella body 9, a first fixing hole 903 is formed in the umbrella body 9, and a first fixing bolt 1 is arranged in the first fixing hole 903;
the short wear-resistant sleeve 12 is arranged in the special-shaped accommodating groove 902, the inner diameter of the short wear-resistant sleeve 12 is the same as the size of the spindle hole 901, and the umbrella body 9 is fixedly connected with the short wear-resistant sleeve 12 through the first fixing bolt 1;
the upper sealing support 4 is sleeved on the short wear-resistant sleeve 12 in an externally sleeved mode, the upper sealing support 4 is located in the special-shaped accommodating groove 902, a second fixing hole 401 is formed in the upper sealing support 4, and a second fixing bolt 11 is arranged in the second fixing hole 401;
the slurry umbrella device is sleeved on a main shaft 13 of the reduction gearbox through a main shaft hole 901 and a short wear-resistant sleeve 12, and the upper sealing support 4 is fixedly connected with an upper transparent cover 2 of the reduction gearbox through a second fixing bolt 11.
The umbrella body 9 and the upper sealing support 4 are fastened through the fixing bolts, pressure between the components is increased, on one hand, the sealing performance between the components can be improved, on the other hand, replacement, installation and cleaning are facilitated, and the working efficiency is improved.
It should be noted that the plurality of first fixing holes 903 are uniformly formed in the umbrella body 9, the plurality of second fixing holes 401 are uniformly formed in the upper sealing support 4, and the plurality of fixing holes ensure uniform stress and no inclination during fastening, thereby improving the reliability of the slurry umbrella device.
Further, the upper seal holder 4 further includes:
the first sealing groove 402 is disposed on the sidewall of the upper sealing support 4 contacting the umbrella body 9, and a combined sealing ring 5 is disposed in the first sealing groove 402.
Further, the upper seal holder 4 further includes:
a second sealing groove 403, which is arranged on the lower wall of the upper sealing bracket 4 contacting with the upper transparent cover 2;
a third sealing groove 404 disposed on a sidewall of the upper sealing bracket 4 contacting the upper transparent cover 2;
o-rings 6 are disposed in the second and third seal grooves 403 and 404.
And the upper sealing support 4 is provided with three sealing grooves, so that the sealing property of the slurry umbrella device is improved.
It should be noted that, because the umbrella body 9 and the upper sealing support 4 have relative movement, and the combined sealing ring 5 is a rotary sealing satisfying the sealing condition, the O-shaped sealing ring 6 is used between two components which do not generate relative movement, thereby improving the sealing performance and saving the production cost.
Further, the mud umbrella device still includes:
the straight-through type oil filling cup 3 is arranged on the umbrella body 9, butter is filled into the cavity of the umbrella body 9 and the upper sealing bracket 4 through the straight-through type oil filling cup 3,
the straight-through type oil filling cup 3 can prevent mud from entering the cavity of the mud umbrella device, and the sealing performance of the mud umbrella device is improved.
Further, a rotating framework oil seal 10 is arranged between the upper sealing support 4 and the short wear-resistant sleeve 12.
The rotating framework oil seal 10 is mainly used in rotatable occasions, and has the advantages of strong reinforcing effect, stable quality, strong wear resistance and long service life.
Fig. 4 shows a schematic view of a gasket according to an embodiment of the invention.
As shown in fig. 4, a sealing gasket 8 is arranged on the contact surface of the umbrella body 9 and the short wear-resistant sleeve 12, a mounting hole 7 is arranged on the sealing gasket 8, and the mounting hole 7 is matched with the first fixing bolt 1.
Note that the packing 8 in this embodiment is an asbestos rubber packing, and prevents the slurry from entering the slurry umbrella device through the first fixing hole 903.
Further, the umbrella body 9 and the upper sealing support 4 are both made of metal.
The slurry umbrella device made of metal materials has better corrosion resistance, high temperature resistance and friction resistance.
Specifically, during installation, firstly, the combined seal ring 5, the two O-shaped seal rings 6 and the rotating framework oil seal 10 are coated with lubricating grease and then are installed at corresponding positions on the upper seal support 4, and all seal elements can not be scratched so as to ensure good sealing effect, the upper seal support 4 with the seal elements installed is penetrated through the main shaft 13, the seal elements can not be scratched during penetration, the upper seal support 4 is tightly attached to the upper transparent cover 2 and is fastened by the second fixing bolt 11, the upper seal support 4 is ensured to be uniform in hand and can not be inclined during fastening, the short wear-resistant sleeve 12 is sleeved on the main shaft 13 and is contacted with the rotating framework oil seal 10 on the upper seal support 4, the seal gasket 8 is penetrated through the main shaft 13 and is attached to the upper end of the short wear-resistant sleeve 12, and the first fixing hole 903 on the umbrella body 9 is ensured to be aligned with the short wear-resistant sleeve 12 and the installation hole 7, then the umbrella body 9 is penetrated from the upper end of the main shaft 13 and is fastened with the short wear-resistant sleeve 12 through the first fixing bolt 1, if the combined sealing ring 5 of the umbrella body 9 and the upper sealing support 4 is blocked, the umbrella body 9 is slightly knocked to be in contact with the short wear-resistant sleeve 12 and is fastened through the first fixing bolt 1, and finally the straight-through type oil filling cup 3 is screwed into the umbrella body 9 to complete the installation of the mud umbrella device.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.