CN213898876U - Tap subassembly for geological exploration - Google Patents

Abstract

The utility model provides a tap assembly for geological exploration, which comprises a core pipe, wherein one end of the core pipe is connected with a slurry inlet joint, and the other end of the core pipe is connected with a slurry outlet joint through a shell; the shell is rotatably connected with the core pipe through a bearing piece, and a first sealing ring is arranged on the contact surface of the inner wall of the shell and the outer wall of the core pipe. The core tube is sleeved with a gland, and the gland is in threaded connection with the shell and used for axially positioning the bearing piece. The one end that the gland was kept away from to the bearing spare is equipped with the retaining ring, and the retaining ring is installed in the mounting groove that is located core pipe for carry out axial positioning to the bearing spare. The slurry outlet joint, the shell and the gland are in reverse thread fit. The utility model discloses replace original mechanical seal with the sealing washer, solved rigidity mechanical seal because vibrations cause sealed face crackle, lead to the technical problem of sealed face damage, the in-service use is effectual, and the sealing washer need not be changed in continuous long-term operation, has improved the efficiency of construction, simultaneously greatly reduced the cost.

Description

Tap subassembly for geological exploration

Technical Field

The utility model relates to a tap technical field for the engineering driller specifically is a tap subassembly for geological exploration.

Background

The high-pressure water tap mainly plays a role in conveying high-pressure cement paste in the drilling machine, when the high-pressure water tap works, the high-pressure cement paste is conveyed to the core part of a drill rod of the drilling machine through the high-pressure water tap, and the drill rod is rotated to enable the high-pressure cement paste to continuously cut a peripheral soft soil layer. And slowly lifting the drill rod at a constant speed when the slurry is poured until the drill rod reaches the ground. The construction is repeated continuously, so that continuous cement columns can be formed in soil layers or rock layers to improve the bearing capacity of the soft foundation.

Among the prior art, high pressure faucet's sealing member adopts normal running fit's mechanical seal structure, include the sleeve that cup joints with rotary joint, with sleeve rigid seal connection's seal cover, the contact surface of sleeve, seal cover is sealed face, and in the work progress, two contact surfaces closely laminate and reach rotary seal's effect, but because the reason of vibrations, the binding surface produces slight gap, leads to the impurity of aquatic to get into sealed face to destroy sealed face. In addition to the large pressure experienced by the housing and the high speed rotation of the sleeve, the faucet seal wears very quickly, has a short life, and requires frequent replacement.

The contact surface of sleeve, seal cover all adopts the alloy ring, processes into mirror surface structure, and is not only with high costs, and because the outside shell of high pressure tap all adopts fixed connection's mode, the shell end is the fastening moreover for it is very big to dismantle the degree of difficulty when changing casing accessory, needs to spend a large amount of time to dismantle the accessory that is worn and torn, and the accessory that changes again seriously influences the efficiency of construction.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tap subassembly for geological exploration has solved current tap mechanical seal structure and has caused the serious technical problem of sealing member wearing and tearing.

The utility model adopts the technical scheme as follows:

a water tap assembly for geological exploration comprises a core pipe, wherein one end of the core pipe is connected with a slurry inlet joint, and the other end of the core pipe is connected with a slurry outlet joint through a shell; the shell is rotatably connected with the core pipe through a bearing piece, and a first sealing ring is arranged on the contact surface of the inner wall of the shell and the outer wall of the core pipe.

The core tube is sleeved with a gland, and the gland is in threaded connection with the shell and used for axially positioning the bearing piece.

The bearing piece is kept away from the one end of gland is equipped with the retaining ring, the retaining ring is installed and is located in the mounting groove on the core pipe, be used for right the bearing piece carries out axial positioning.

The shell is in threaded connection with the slurry outlet joint, and second sealing rings are arranged on circumferential end faces in mutual contact.

The slurry outlet joint, the shell and the gland are in reverse thread fit.

And a side water inlet joint is arranged on the circumferential side surface of the core pipe.

And a matched plug is arranged at the opening of the side water inlet joint.

And a third sealing ring and a fourth sealing ring are respectively arranged at the joint of the core pipe and the side water inlet joint and the joint of the slurry inlet joint.

The bearing part adopts a deep groove ball bearing.

The mud inlet joint adopts a male joint, and the mud outlet joint adopts a reducer union.

The utility model has the advantages as follows:

the utility model discloses replace current mechanical seal with the sealing washer structure, solved rigidity mechanical seal because vibrations cause sealed face crackle, lead to the problem of sealed face damage, the in-service use is effectual, and the sealing washer need not be changed in continuous long-term operation, has improved the efficiency of construction, simultaneously greatly reduced the cost.

The utility model discloses the casing is rotatory in the course of the work, and the core pipe is quiescent condition, and the reliability is high.

The utility model discloses a tap is convenient for overhaul and is maintained, unscrews the gland and can change the sealing washer, and easy operation is efficient.

The utility model discloses be anti-tooth screw-thread fit between mud outlet joint, casing and the gland, it is tighter to rotate more, and the reliability is high.

The utility model discloses the setting sets up the side inlet connector on the core pipe and is fit for all-round multi-angle use, avoids the inlet tube excessively crooked.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a main sectional view of the present invention.

Fig. 3 is a schematic view of a conventional faucet structure.

In the figure: 1. a slurry inlet joint; 2. a core tube; 3. a fourth seal ring; 4. a third seal ring; 5. a plug; 6. a side inlet joint; 7. a gland; 8. a space ring; 9. a bearing member; 10. a retainer ring; 11. a housing; 12. a second seal ring; 13. a first seal ring; 14. a slurry outlet connection; 15. sealing sleeves; 16. a sleeve; 17. a housing; 18. a connecting head.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 2, the geological exploration faucet assembly of the present embodiment includes a core pipe 2, one end of the core pipe 2 is connected to a slurry inlet joint 1, and the other end is connected to a slurry outlet joint 14 through a housing 11;

the mud inlet joint 1, the core pipe 2 and the mud outlet joint 14 form a channel for transporting mud inside.

The shell 11 is rotatably connected with the core tube 2 through a bearing piece 9, and a first sealing ring 13 is arranged on the contact surface of the inner wall of the shell 11 and the outer wall of the core tube 2.

In one embodiment, a plurality of first seal rings 13 are provided at intervals in the axial direction along the contact surface between the inner wall of the housing 11 and the outer wall of the core tube 2, and as shown in fig. 1, a hydraulic pressure O-ring rubber seal is used for each of the three first seal rings 13.

The three first sealing rings 13 can effectively prevent mud from entering the bearing piece 9 to cause bearing damage.

Specifically, the outer wall of the circumference of the core tube 2 is provided with a mounting groove for mounting the first sealing ring 13.

The core tube 2 is sleeved with a gland 7, and the gland 7 is in threaded connection with the shell 11 and used for axially positioning the bearing piece 9.

Specifically, the outer side of the circumference of the shell 11 is lathed with external threads which are matched with the internal threads of the inner wall of the gland 7.

One end of the bearing piece 9, which is far away from the gland 7, is provided with a retainer ring 10, and the retainer ring 10 is installed in an installation groove on the core tube 2 and used for axially positioning the bearing piece 9.

Specifically, the gland 7 and the retainer ring 10 axially restrain the bearing member 9 on the outer diameter of the core tube 2, preventing the bearing member 9 from axially moving.

As an embodiment, the bearing member 9 is a deep groove ball bearing.

Specifically, two groups of deep groove ball bearings are arranged at intervals, and the middle of the deep groove ball bearings is positioned through a spacer ring 8.

The housing 11 is screwed to a slurry outlet connection 14 and is provided with a second sealing ring 12 at the circumferential end faces that are in contact with each other.

Specifically, the outer circumferential side of the housing 11 is externally threaded to mate with an internal thread on the inner wall of the slurry outlet fitting 14.

In one embodiment, the second seal ring 12 is a hydraulic pneumatic O-ring rubber seal.

In one embodiment, the slurry outlet connection 14, the housing 11 and the gland 7 are all in a reverse threaded fit.

The circumferential side surface of the core pipe 2 is provided with a side water inlet joint 6, and the opening of the side water inlet joint 6 is provided with a matched plug 5.

The side inlet joint 6 is suitable for use in all directions and at multiple angles, and can not cause the water inlet pipe to be excessively bent.

And a third sealing ring 4 and a fourth sealing ring 3 are respectively arranged at the joint of the core pipe 2 and the side water inlet joint 6 and the joint of the core pipe and the slurry inlet joint 1.

In one embodiment, the third seal ring 4 is a combined seal ring, and the fourth seal ring 3 is a nylon seal ring.

In one embodiment, the slurry inlet joint 1 is a male joint, and the slurry outlet joint 14 is a reducer joint.

In the water tap assembly for geological exploration, when the water tap assembly works, slurry pumped by a slurry pump enters from a slurry inlet joint 1, passes through a core pipe 2, and enters a drill rod from a slurry outlet joint 14 (the slurry outlet joint 14 can be changed according to the specification of the drill rod), in the using process, the drill rod rotates to drive a gland 7, a spacer ring 8, a bearing piece 9 and a shell 11 to rotate together, other components are in a static state, and three first sealing rings 13 arranged on the core pipe 2 can effectively prevent the bearing from being damaged due to the fact that the slurry enters the bearing. The slurry outlet joint 14, the shell 11 and the gland 7 are in reverse thread fit, and the tighter the slurry outlet joint rotates.

When first sealing washer 13 needs to be changed, only need with gland 7 unscrew can, easy operation, it is efficient.

As shown in fig. 3, which is a schematic view of an existing faucet structure, a sealing member in the drawing generally adopts a mechanical sealing structure with a rotation fit, and includes a sleeve 16 sleeved with a rotary joint and a sealing sleeve 15 rigidly and sealingly connected with the sleeve 16, contact surfaces of the sleeve 16 and the sealing sleeve 15 are sealing surfaces, and in a construction process, the sleeve 16 rotates along with a connector 18, so that two contact surfaces of the sleeve 16 and the sealing sleeve 15 are tightly attached to achieve a rotary sealing effect, but due to vibration, a fine gap is generated on the attachment surface, so that impurities in water enter the sealing surface, and the sealing surface is damaged. Coupled with the large pressure experienced by the housing 17 and the high speed rotation of the sleeve 16, the faucet seal wears very quickly and has a short life and requires frequent replacement.

The sleeve 16 and the sealing sleeve 15 are consumable materials, the contact surface is processed into a mirror surface structure by adopting an alloy ring, the cost is high, and a single worker cannot replace the consumable materials on the basis without using a special tool, so the installation is laborious. And because the outer shell 17 of high pressure tap all adopts fixed connection's mode, the shell 17 end is fastening for it is very big to dismantle the degree of difficulty when changing shell 17 accessory, needs to spend a large amount of time to dismantle the accessory that is worn and torn, changes the accessory of renewal again, seriously influences the efficiency of construction.

The tap subassembly for geological exploration of this embodiment replaces original mechanical seal (alloy ring) with O type circle is sealed, greatly reduced the cost, avoided vibrations to cause the problem that the crackle leads to sealed face to damage, the in-service use effect is fine, and continuous operation 1500 hours need not change O type circle. When needing to be changed, can twist off gland 7, easy operation. In addition, the shell 11 and the core tube 2 of the embodiment are rotatably connected, and in the working process, the shell 11 rotates, and the core tube 2 is in a static state, so that the reliability is high.

Claims (10)

1. The water faucet assembly for geological exploration is characterized by comprising a core pipe (2), wherein one end of the core pipe (2) is connected with a slurry inlet connector (1), and the other end of the core pipe is connected with a slurry outlet connector (14) through a shell (11); casing (11) through bearing spare (9) with core pipe (2) rotate to be connected, casing (11) inner wall with be equipped with first sealing washer (13) on the contact surface of core pipe (2) outer wall.

2. Tap assembly for geological exploration, according to claim 1, characterized in that said core tube (2) is sheathed with a gland (7), said gland (7) being screwed with said housing (11) for axially positioning said bearing member (9).

3. Tap assembly for geological exploration, according to claim 2, characterized in that the end of said bearing member (9) remote from said gland (7) is provided with a collar (10), said collar (10) being mounted in a mounting groove on said core tube (2) for axial positioning of said bearing member (9).

4. Tap assembly for geological exploration, according to claim 2, characterized in that said housing (11) is threaded with said mud outlet joint (14) and is provided with a second sealing ring (12) at the circumferential end faces in mutual contact.

5. Tap assembly for geological exploration, according to claim 4, characterized in that said mud outlet joint (14), said housing (11) and said gland (7) are all counter-threaded.

6. A tap assembly for geological exploration, according to claim 1, characterized in that on the circumferential side of said core tube (2) there is provided a side entry nozzle joint (6).

7. The geological exploration faucet assembly according to claim 6, characterized in that a mating plug (5) is provided at the opening of said side entry nipple (6).

8. The geological exploration water tap assembly according to claim 6, characterized in that the junction of said core tube (2) and said side inlet joint (6) and said slurry inlet joint (1) are provided with a third sealing ring (4) and a fourth sealing ring (3), respectively.

9. Tap assembly for geological exploration, according to one of claims 1 to 8, characterized in that said bearing means (9) are deep groove ball bearings.

10. The geological exploration faucet assembly according to claim 9, characterized in that said mud inlet connection (1) is a male connection and said mud outlet connection (14) is a reducer connection.

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