CN218624179U - Combined sealing device for drilling machine - Google Patents
Combined sealing device for drilling machine Download PDFInfo
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- CN218624179U CN218624179U CN202222138051.3U CN202222138051U CN218624179U CN 218624179 U CN218624179 U CN 218624179U CN 202222138051 U CN202222138051 U CN 202222138051U CN 218624179 U CN218624179 U CN 218624179U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses a combined sealing device for a drilling machine, which comprises a central shaft, wherein the upper end of the central shaft is connected with a bearing embedding connecting end, a framework oil seal seat is arranged at the outer side of the central shaft, a first framework oil seal is arranged at the joint of the framework oil seal seat and the central shaft, and a second framework oil seal is arranged below the first framework oil seal; two O-shaped rings are arranged at the joint of the upper fixed ring and the framework oil seal seat; the rotating ring is installed below the upper fixed ring, the transmission seat is installed below the rotating ring, springs are connected to the upper end face and the lower end face of the transmission seat, and the water seal seat is installed below the framework oil seal seat. This a combination sealing device for rig compares with current device, through the mechanical seal mechanism who comprises O type circle, rotating ring, last stationary ring, ring holder, spring, driving seat anti-rotation pin and lower stationary ring can fix to compress tightly sealedly the junction of last stationary ring and skeleton oil blanket seat, play and prevent changeing and seal the effect of water.
Description
Technical Field
The utility model relates to a combined sealing technical field of rig specifically is a combined sealing device for rig.
Background
The drilling machine is a mechanical device which drives a drilling tool to drill underground to obtain real geological data in exploration or mineral resource (including solid ore, liquid ore, gas ore and the like) development. Also known as a drilling rig. The main function is to drive the drilling tool to break the rock at the bottom of the hole and to put in or put out the drilling tool in the hole. The device can be used for drilling rock cores, rock debris, gas samples, liquid samples and the like so as to find out the conditions of underground geology, mineral resources and the like, and the sealing device is sealed at the joint of the drilling machine so as to ensure the sealing property, so that the combined sealing device for the drilling machine is used.
The existing combined sealing device for the drilling machine mostly uses O-shaped ring sealing and rubber Y-shaped sealing in the sealing mode, and as the medium used in the drilling operation is water or cement paste which contains more fine sand, the rubber sealing ring which is sealed is easy to abrade; particularly, the rubber seal arranged at the lower end of the water seal seat is a main dynamic seal part, so that fine sand is easily embedded into the water seal seat in the sealing process to cause abrasion of a water seal, the sealing effect is poor, great waste is caused due to short service cycle and frequent replacement, and meanwhile, the engineering progress is delayed during replacement, so that the combined sealing device for the drilling machine is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a combined sealing device for a drilling machine, which aims to solve the problems that the prior combined sealing device for the drilling machine mostly uses sealing forms of O-shaped ring sealing and rubber Y-shaped sealing, and the medium used in drilling operation is water or cement paste which contains more fine sand and is easy to wear a sealed rubber sealing ring; particularly, the rubber seal arranged at the lower end of the water seal seat is a main dynamic seal part, so fine sand is easily embedded into the water seal seat in the sealing process to cause abrasion of the water seal, the sealing effect is poor, and the rubber seal not only causes great waste due to short service cycle and frequent replacement, but also greatly delays the engineering progress during replacement.
In order to achieve the above object, the utility model provides a following technical scheme: a composite seal for a drilling rig comprising:
the upper end of the middle shaft is connected with a bearing embedding connecting end, a framework oil seal seat is installed on the outer side of the middle shaft, a first framework oil seal is installed at the joint of the framework oil seal seat and the middle shaft, and a second framework oil seal is installed below the first framework oil seal;
the oil discharge port is arranged on one side of the outer wall of the framework oil seal seat;
the upper fixed ring is arranged below the inner part of the framework oil seal seat, and two O-shaped rings are arranged at the joint of the upper fixed ring and the framework oil seal seat;
the movable ring is arranged below the upper fixed ring, a transmission seat is arranged below the movable ring, springs are connected to the upper end face and the lower end face of the transmission seat, and a ring seat is connected to one side outside the springs;
the anti-rotation pin is arranged at the joint of the transmission seat and the middle shaft, and a lower fixed ring is arranged below the transmission seat;
and the water seal seat is arranged below the framework oil seal seat.
Preferably, the bearing embedding connecting end is fixedly connected with the middle shaft, and the middle shaft forms an elastic sealing structure with the framework oil seal seat through the first framework oil seal and the second framework oil seal.
Preferably, the upper fixed ring forms an elastic sealing structure with the framework oil seal seat through the two O-shaped rings, and a semi-surrounding structure is formed between the framework oil seal seat and the upper fixed ring.
Preferably, the structure of the transmission seat is in a ring sleeve shape with an upward opening and a downward opening, a tooth-shaped structure is arranged on the inner wall of the transmission seat, and the transmission seat is connected with the middle shaft through an anti-rotation pin.
Preferably, an annular compression cavity with an upward and downward opening is formed between the upper part and the lower part of the transmission seat and the middle shaft, and the movable ring is connected with the transmission seat in a clamping manner through a clamping groove.
Preferably, the movable ring forms an elastic telescopic structure through the ring seat and between the spring and the transmission seat, and the transmission seat forms an elastic telescopic structure through the spring and between the lower fixed ring.
Preferably, the water seal seat is further provided with:
the bearing block is arranged below the water seal seat, a positioning bearing is arranged at the joint of the bearing block and the water seal seat, and the water seal seat is movably connected with the bearing block through the positioning bearing.
Compared with the prior art, the utility model provides a combination sealing device for rig possesses following beneficial effect:
the utility model discloses a by O type circle, the rotating ring, go up the stationary ring, the ring seat, a spring, the mechanical seal mechanism that transmission seat anti-rotation pin and lower stationary ring constitute can fix the joint of going up stationary ring and skeleton oil blanket seat and compress tightly sealed, play the effect of preventing rotating and sealing up water, mechanical seal device's first grade is sealed and can effectively prevent grout fine sand, it is sealed effectual, seal through the second grade sealing mode of O type circle and first skeleton oil blanket and second skeleton oil blanket, can prolong the time of sealing, reduce sealing device's change frequency, waste is reduced, the work efficiency is improved, it seals for O type circle and rubber Y type to have avoided the most sealing forms of using of the combined seal device that present is used for the rig, because the medium that the operation of creeping into uses is water or, contain more fine sand in the grout, the sealed rubber seal ring of very easy wearing and tearing; particularly, the rubber seal arranged at the lower end of the water seal seat is a main dynamic seal part, so fine sand is easily embedded into the water seal seat in the sealing process to cause abrasion of the water seal, the sealing effect is poor, and the rubber seal not only causes great waste due to short service cycle and frequent replacement, but also greatly delays the engineering progress during replacement.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an exploded view of the present invention;
fig. 4 is an exploded view of the sealing device of the present invention;
fig. 5 is a schematic structural view of the transmission seat of the present invention.
In the figure: 1. a middle shaft; 2. a first framework oil seal; 3. a framework oil seal seat; 4. an oil discharge port; 5. a second framework oil seal; 6. an O-shaped ring; 7. a moving ring; 8. an upper stationary ring; 9. a ring seat; 10. a spring; 11. a transmission seat; 12. anti-rotation pins; 13. a lower stationary ring; 14. a water seal seat; 15. positioning the bearing; 16. a bearing seat; 17. the bearing inlays the link.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Referring to fig. 1, a composite seal for a drilling rig includes: the middle shaft 1, the upper end of the middle shaft 1 connects with the bearing inlay link end 17, the outside of the middle shaft 1 installs the skeleton oil seal seat 3, and the skeleton oil seal seat 3 installs the first skeleton oil seal 2 with the junction of the middle shaft 1, the inferior part of the first skeleton oil seal 2 installs the second skeleton oil seal 5; the oil discharge port 4 is arranged on one side of the outer wall of the framework oil seal seat 3; the bearing embedding connecting end 17 is fixedly connected with the middle shaft 1, and the middle shaft 1 forms an elastic sealing structure with the framework oil seal seat 3 through the first framework oil seal 2 and the second framework oil seal 5; the water seal seat 14 is arranged below the framework oil seal seat 3; the bearing seat 16 is arranged below the water seal seat 14, a positioning bearing 15 is arranged at the joint of the bearing seat 16 and the water seal seat 14, and the water seal seat 14 is movably connected with the bearing seat 16 through the positioning bearing 15; the bearing seat 16 and the positioning bearing 15 are connected together through eight connecting bolts distributed circumferentially.
Referring to fig. 2-4, a composite seal for a drilling rig includes: the upper fixed ring 8 is arranged below the inner part of the framework oil seal seat 3, and two O-shaped rings 6 are arranged at the joint of the upper fixed ring 8 and the framework oil seal seat 3; the upper fixed ring 8 forms an elastic sealing structure with the framework oil seal seat 3 through the two O-shaped rings 6, and a semi-surrounding structure is formed between the framework oil seal seat 3 and the upper fixed ring 8; go up the junction of stationary ring 8 and skeleton oil blanket seat 3 and fix to compress tightly sealed, can play the effect of preventing to rotate and sealing up water.
Referring to fig. 3-5, a composite seal for a drilling rig, comprising: the movable ring 7 is arranged below the upper fixed ring 8, the transmission seat 11 is arranged below the movable ring 7, the upper end surface and the lower end surface of the transmission seat 11 are both connected with springs 10, and one side outside the springs 10 is connected with a ring seat 9; an annular compression cavity with an upward opening and a downward opening is formed between the upper part and the lower part of the transmission seat 11 and the middle shaft 1, and the movable ring 7 is connected with the transmission seat 11 in a clamping manner through a clamping groove; the anti-rotation pin 12 is arranged at the joint of the transmission seat 11 and the middle shaft 1, and the lower fixed ring 13 is arranged below the transmission seat 11; the structure of the transmission seat 11 is in a ring sleeve shape with an upward opening and a downward opening, the inner wall of the transmission seat 11 is provided with a tooth-shaped structure, and the transmission seat 11 is connected with the middle shaft 1 through an anti-rotation pin 12; the movable ring 7 forms an elastic telescopic structure with the transmission seat 11 through the ring seat 9 and the spring 10, and the transmission seat 11 forms an elastic telescopic structure with the lower fixed ring 13 through the spring 10; the spring 10 can be freely adjusted in tightness by the water pressure during the operation of the drilling machine, so that the sealing effect of the contact surfaces of the movable ring 7, the upper fixed ring 8 and the lower fixed ring 13 during the rotation operation is achieved.
The working principle is as follows: when the combined sealing device for the drilling machine is used, firstly, the bearing embedding connecting end 17 above the middle shaft 1 is embedded in a power head shell, and the framework oil seal seat 3 is installed together with the power head shell through a mechanical sealing mechanism, wherein the mechanical sealing mechanism consists of an O-shaped ring 6, a movable ring 7, an upper fixed ring 8, a ring seat 9, a spring 10, a transmission seat 11 anti-rotation pin 12 and a lower fixed ring 13, so that the upper part of the mechanical sealing mechanism is fixedly connected with the framework oil seal seat 3, the lower end of the mechanical sealing mechanism is fixedly connected with a bearing seat 16, meanwhile, the water seal seat 14 is fixed below the framework oil seal seat 3 through a connecting device, the bearing seat 16 is fixed below the water seal seat 14 through a connecting device and a positioning bearing 15, and the bearing seat 16 and the positioning bearing 15 are connected together through eight circumferentially distributed connecting bolts; secondly, the joint of the upper fixed ring 8 and the framework oil seal seat 3 is fixed, pressed and sealed through the O-shaped ring 6, so that the effects of rotation prevention and water sealing can be achieved, the transmission seat 11 is guaranteed to synchronously rotate when the middle shaft 1 rotates through the anti-rotation pin 12, the oil discharge port 4 can discharge internal residual oil when needed, and meanwhile, the oil discharge port 4 is sealed through a thread plug when not in use; then, through a compression cavity formed between the upper part and the lower part of the transmission seat 11 and the middle shaft 1, the compression cavity can be mutually clamped with the movable ring 7 through four tooth-shaped structures to act on the synchronous operation of the movable ring 7 and the transmission seat 11, and the spring 10 can be freely adjusted in tightness through the water pressure during the operation of the drilling machine, so that the sealing effect of the contact surfaces of the movable ring 7, the upper fixed ring 8 and the lower fixed ring 13 during the rotating operation is achieved; finally, the movable ring 7 can be fixedly connected with the middle shaft 1 through four axial tooth-shaped structures distributed on the periphery of the lower portion of the movable ring 7, the O-shaped ring 6 arranged between the movable ring 7 and the ring seat 9 is used for sealing and locking, double sealing is carried out through the mechanical sealing device, the first framework oil seal 2, the second framework oil seal 5 and the O-shaped ring 6, the primary sealing of the mechanical sealing device can effectively prevent fine sand, the sealing effect is good, the service life is prolonged, meanwhile, if the first sealing fails, the O-shaped ring 6, the first framework oil seal 2 and the second framework oil seal 5 can be adopted for continuous sealing, the sealing time can be prolonged, the replacement frequency of the sealing device is reduced, waste is reduced, the working efficiency is improved, the sealing of the water seal seat 14 is effectively lengthened, and the working principle of the combined sealing device for the drilling machine is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A composite seal for a drilling rig, comprising:
the middle shaft is characterized by comprising a middle shaft (1), the upper end of the middle shaft (1) is connected with a bearing embedding connecting end (17), a framework oil seal seat (3) is installed on the outer side of the middle shaft (1), a first framework oil seal (2) is installed at the connecting position of the framework oil seal seat (3) and the middle shaft (1), and a second framework oil seal (5) is installed below the first framework oil seal (2);
the oil discharge port (4) is arranged on one side of the outer wall of the framework oil seal seat (3);
the upper fixed ring (8) is arranged below the inner part of the framework oil seal seat (3), and two O-shaped rings (6) are arranged at the joint of the upper fixed ring (8) and the framework oil seal seat (3);
the movable ring (7) is arranged below the upper fixed ring (8), a transmission seat (11) is arranged below the movable ring (7), springs (10) are connected to the upper end face and the lower end face of the transmission seat (11), and a ring seat (9) is connected to one side outside the springs (10);
the anti-rotation pin (12) is arranged at the joint of the transmission seat (11) and the middle shaft (1), and a lower fixed ring (13) is arranged below the transmission seat (11);
and the water seal seat (14) is arranged below the framework oil seal seat (3).
2. The combined sealing device for the drilling machine is characterized in that the bearing embedding connecting end (17) is fixedly connected with the middle shaft (1), and the middle shaft (1) forms an elastic sealing structure with the framework oil seal seat (3) through the first framework oil seal (2) and the second framework oil seal (5).
3. The combined sealing device for the drilling machine is characterized in that the upper fixed ring (8) forms an elastic sealing structure with the framework oil seal seat (3) through two O-rings (6), and a semi-surrounding structure is formed between the framework oil seal seat (3) and the upper fixed ring (8).
4. A combined sealing device for a drilling machine according to claim 1, characterized in that the structure of the driving seat (11) is a ring shape with an opening up and down, the inner wall of the driving seat (11) is provided with a tooth-shaped structure, and the driving seat (11) is connected with the middle shaft (1) through an anti-rotation pin (12).
5. The combined sealing device for the drilling machine is characterized in that annular compression cavities with upward and downward openings are formed between the upper portion and the lower portion of the transmission seat (11) and the middle shaft (1), and the movable ring (7) is connected with the transmission seat (11) in a clamping mode through a clamping groove in a clamping mode.
6. A combined sealing device for a drilling machine according to claim 1, characterized in that the movable ring (7) forms an elastic telescopic structure with the transmission seat (11) through the ring seat (9) and the spring (10), and the transmission seat (11) forms an elastic telescopic structure with the lower fixed ring (13) through the spring (10).
7. A combined sealing device for a drilling rig according to claim 1, characterised in that the water seal holder (14) is further provided with:
the bearing block (16) is installed below the water seal block (14), a positioning bearing (15) is installed at the joint of the bearing block (16) and the water seal block (14), and the water seal block (14) is movably connected with the bearing block (16) through the positioning bearing (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222138051.3U CN218624179U (en) | 2022-08-15 | 2022-08-15 | Combined sealing device for drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222138051.3U CN218624179U (en) | 2022-08-15 | 2022-08-15 | Combined sealing device for drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218624179U true CN218624179U (en) | 2023-03-14 |
Family
ID=85459117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222138051.3U Active CN218624179U (en) | 2022-08-15 | 2022-08-15 | Combined sealing device for drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218624179U (en) |
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2022
- 2022-08-15 CN CN202222138051.3U patent/CN218624179U/en active Active
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