CN216111309U - Vertical sand pump for conveying drilling fluid - Google Patents

Abstract

The utility model belongs to the technical field of sand pump devices, and particularly relates to a vertical sand pump for conveying drilling fluid, which comprises a pump shell, wherein a funnel is arranged on the left side of the pump shell, a bolt is arranged on the funnel, the funnel is connected with the pump shell through a bolt, a water discharge plug is arranged below the pump shell, a water outlet pipe is arranged above the pump shell, a bolt is arranged on the water outlet pipe, the water outlet pipe is connected with the pump shell through a bolt, an impeller is arranged on the inner side of the pump shell, a shaft is arranged on the inner side of the impeller, a slotted nut is arranged on the left side of the shaft, a pump cover is arranged on the right side of the impeller, a water-proof bearing chamber is arranged on the right side of the pump cover, a bearing chamber is arranged on the right side of the water-proof bearing chamber, and a plurality of bearings are arranged on the shaft on the left inner side of the bearing chamber, the maintenance is inconvenient.

Description

Vertical sand pump for conveying drilling fluid

Technical Field

The utility model belongs to the technical field of sand pump devices, and particularly relates to a vertical sand pump for conveying drilling fluid.

Background

In the current drilling and exploration industry, drilling fluid is indispensable liquid, the drilling fluid can lubricate an underground drill bit, rock fragments are returned to the ground and are brought to the ground, the rock fragments are filtered and separated and then pressed into the ground for recycling, the drilling fluid is mixed liquid with large viscosity, high specific gravity and high particle content, a pump for conveying the drilling fluid is called a sand pump, the current sand pump has the condition that the drilling fluid enters a bearing due to poor sealing and the bearing is damaged, under the severe working condition, once the drilling fluid enters the bearing, the bearing is severely worn, the shaft is immediately damaged, the sand pump is stopped and leaked, and the construction period is delayed.

The utility model discloses a vertical sand pump with a double-end-face mechanical sealing structure, which comprises a double-end-face mechanical sealing structure, a sealing box assembly, a pumping sleeve structure and a cooling tank assembly, and aims to provide the vertical sand pump with the double-end-face mechanical sealing structure, overcome various defects and defects of the single-end-face mechanical sealing in the using process, improve the operation stability of the whole pump, enhance the adaptability to severe working condition conditions, prolong the service life and meet the use requirements.

However, the bearings, the shafts and the shaft sleeves in the prior art are lack of sealing devices, drilling fluid possibly enters the bearings in the using process to damage the bearings, particularly under severe working conditions, the bearings are severely abraded, the shafts are immediately damaged, finally the sand pump is shut down and leaked, the construction period is delayed, the size of the sand pump is too large, a large space is needed during installation, two layers of mechanical sealing structures need to be detached during maintenance, and the maintenance is inconvenient.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a vertical sand pump for conveying drilling fluid, which is used for solving the problems that the existing drilling fluid enters a bearing to damage the bearing, the size of the sand pump is overlarge, a large space is needed during installation, and the maintenance is inconvenient.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a vertical sand pump for conveying drilling fluid comprises a pump shell, wherein a funnel is arranged on the left side of the pump shell, a bolt is arranged on the funnel, the funnel is connected with a pump shell through a bolt, a water discharging plug is arranged below the pump shell, a water outlet pipe is arranged above the pump shell, the water outlet pipe is provided with a bolt and is connected with a pump shell bolt through the bolt, the inner side of the pump shell is provided with an impeller, a shaft is arranged at the inner side of the impeller, a slotted nut is arranged at the left side of the shaft, a pump cover is arranged at the right side of the impeller, a water-proof bearing chamber is arranged on the right side of the pump cover, a bearing chamber is arranged on the right side of the water-proof bearing chamber, a plurality of bearings are arranged on a shaft on the left inner side of the bearing chamber, a plurality of bearings are arranged on the shaft at the right inner side of the bearing chamber, a locking nut is arranged at the left side of each bearing, the bearing chamber left side terminal surface is equipped with first bearing gland, first bearing gland left side is equipped with the manger plate ring.

Further, a shaft sleeve is arranged on the shaft on the inner side of the first bearing cover, and an oil seal is arranged between the shaft sleeve and the first bearing cover.

The axle sleeve is in the outside of axle, provides the mounted position for the oil blanket, and the lubricating oil of bearing room inside can be sealed to the oil blanket, lets lubricating oil can not flow.

Further, a cotter pin is arranged on the left side of the shaft.

The split pin is arranged on the left side of the shaft and used for fixing the slotted nut and preventing the slotted nut from loosening.

Further, the bearing chamber left side is equipped with the bolt, the bearing chamber passes through the bolt and is connected with water proof bearing chamber, the bearing chamber right side is equipped with the motor support, the bearing chamber right side is equipped with a plurality of bolts, the bearing chamber passes through bolt and motor leg joint.

The bolt is used for fixing the bearing chamber and the water-proof bearing chamber to keep the bearing chamber and the water-proof bearing chamber relatively static, and the bolt is used for fixing the bearing chamber and the motor support to keep the bearing chamber and the motor support relatively static.

Further, a second bearing pressure cover is arranged on the right side of the bearing chamber, an oil seal is arranged on the inner side of the second bearing pressure cover, and a locking nut is arranged on the right side of the bearing.

The second bearing gland can fix the outer ring of the bearing and the bearing chamber, the locking nut can fix the inner ring of the bearing and the shaft, and the oil seal can seal lubricating oil on the inner side of the bearing chamber, so that the lubricating oil cannot flow out.

Further, the motor support is fixed on the base.

The base provides the mounted position for the motor support, and the motor support can fix the motor.

Compared with the prior art, the utility model has the following beneficial effects:

1. the waterproof bearing chamber and the water retaining ring are additionally arranged, so that drilling fluid can be effectively prevented from entering the bearing, and the normal operation of the bearing is guaranteed;

2. the structure of the sand pump is reasonably optimized, so that the whole structure is more refined, the structure is compact, the occupied area is small, and an overlarge installation position is not needed;

3. the pump shell and the pump cover of the pump are partially opened from the back of the impeller, so that the pump is convenient to overhaul, and the pump body, the suction pipeline and the discharge pipeline can be maintained without being disassembled during overhaul.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of a vertical sand pump for drilling fluid delivery of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

reference numerals in the drawings of the specification include:

the water discharging device comprises a water discharging plug 1, a pump shell 2, a bolt 3, a funnel 4, a cotter pin 5, a slotted nut 6, an impeller 7, a water outlet pipe 9, a water-resisting bearing chamber 10, a water-stopping ring 11, a first bearing cover 12, a shaft sleeve 13, a locking nut 14, a bearing 16, a bearing chamber 17, a second bearing cover 19, an oil seal 21, a motor support 22, a base 23, a shaft 25 and a pump cover 28.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1-3, the vertical sand pump for conveying drilling fluid of the present invention comprises a pump housing 2, a funnel 4 is arranged on the left side of the pump housing 2, a bolt 3 is arranged on the funnel 4, the funnel 4 is bolted with the pump housing 2 through the bolt 3, a water discharge plug 1 is arranged below the pump housing 2, a water outlet pipe 9 is arranged above the pump housing 2, the bolt 3 is arranged on the water outlet pipe 9, the water outlet pipe 9 is bolted with the pump housing 2 through the bolt 3, an impeller 7 is arranged on the inner side of the pump housing 2, a shaft 25 is arranged on the inner side of the impeller 7, a slotted nut 6 is arranged on the left side of the shaft 25, a pump cover 28 is arranged on the right side of the impeller 7, a water-proof bearing chamber 10 is arranged on the right side of the pump cover 28, a bearing chamber 17 is arranged on the right side of the water-proof bearing chamber 10, a plurality of bearings 16 are arranged on the shaft 25 on the left inner side of the bearing chamber 17, a plurality of bearings 16 are arranged on the shaft 25, a locking nut 14 is arranged on the left side of the bearing chamber 17, a first bearing cap 12 is arranged on the left end face of the bearing chamber, the left side of the first bearing cover 12 is provided with a water retaining ring 11. Specifically, the pump case 2 and the pump cover 28 form a whole pump structure, the funnel 4 is an inlet of drilling fluid, the funnel 4 is in bolted connection with the pump case 2 through the bolt 3, the water discharging plug 1 can discharge the drilling fluid in the pump case 2, the water outlet pipe 9 is an outlet of the drilling fluid, the water outlet pipe 9 is in bolted connection with the pump case 2 through the bolt 3, the impeller 7 is used for providing kinetic energy for the drilling fluid, the shaft 25 connects the motor with the impeller 7, the motor can drive the impeller 7 to rotate, the slotted nut 6 can fix the impeller 7 on the shaft 25, the water-proof bearing chamber 10 can isolate the drilling fluid and prevent the drilling fluid from entering the bearing chamber 17, the bearing 16 can enable the bearing chamber 17 and the shaft 25 to rotate relatively, sliding friction is changed into rolling friction, abrasion between the bearing chamber 17 and the shaft 25 is reduced, the locknut 14 can fix the inner ring of the bearing 16 with the shaft 25, the first bearing cover 12 can fix the outer ring of the bearing 16 with the bearing chamber 17, the water stop ring 11 prevents water from entering the bearing chamber 17 from the gap between the shaft 25 and the first bearing cap 12.

Example two:

as a further improvement of the previous embodiment, as shown in fig. 1-3, the present invention provides a vertical sand pump for conveying drilling fluid, which includes a pump housing 2, a funnel 4 is disposed on the left side of the pump housing 2, a bolt 3 is disposed on the funnel 4, the funnel 4 is bolted to the pump housing 2 via the bolt 3, a water discharge plug 1 is disposed below the pump housing 2, a water outlet pipe 9 is disposed above the pump housing 2, the bolt 3 is disposed on the water outlet pipe 9, the water outlet pipe 9 is bolted to the pump housing 2 via the bolt 3, an impeller 7 is disposed inside the pump housing 2, a shaft 25 is disposed inside the impeller 7, a slotted nut 6 is disposed on the left side of the shaft 25, a pump cover 28 is disposed on the right side of the impeller 7, a pump cover bearing chamber 10 is disposed on the right side of the pump cover 28, a bearing chamber 17 is disposed on the right side of the pump cover bearing chamber 10, a plurality of bearings 16 are disposed on the shaft 25 on the left inner side of the bearing chamber 17, a plurality of bearings 16 are disposed on the shaft 25, a lock nut 14 is disposed on the left side of the bearing chamber 16, the left end face of the bearing chamber 17 is provided with a first bearing cover 12, and the left side of the first bearing cover 12 is provided with a water retaining ring 11. Specifically, the pump case 2 and the pump cover 28 form a whole pump structure, the funnel 4 is an inlet of drilling fluid, the funnel 4 is in bolted connection with the pump case 2 through the bolt 3, the water discharging plug 1 can discharge the drilling fluid in the pump case 2, the water outlet pipe 9 is an outlet of the drilling fluid, the water outlet pipe 9 is in bolted connection with the pump case 2 through the bolt 3, the impeller 7 is used for providing kinetic energy for the drilling fluid, the shaft 25 connects the motor with the impeller 7, the motor can drive the impeller 7 to rotate, the slotted nut 6 can fix the impeller 7 on the shaft 25, the water-proof bearing chamber 10 can isolate the drilling fluid and prevent the drilling fluid from entering the bearing chamber 17, the bearing 16 can enable the bearing chamber 17 and the shaft 25 to rotate relatively, sliding friction is changed into rolling friction, abrasion between the bearing chamber 17 and the shaft 25 is reduced, the locknut 14 can fix the inner ring of the bearing 16 with the shaft 25, the first bearing cover 12 can fix the outer ring of the bearing 16 with the bearing chamber 17, the water stop ring 11 prevents water from entering the bearing chamber 17 from the gap between the shaft 25 and the first bearing cap 12.

A shaft sleeve 13 is arranged on the shaft 25 at the inner side of the first bearing cover 12, and an oil seal 21 is arranged between the shaft sleeve 13 and the first bearing cover 12. Specifically, the sleeve 13 is fitted around the outside of the shaft 25 to provide a mounting position for the oil seal 21, and the oil seal 21 can seal the lubricating oil inside the bearing chamber 17 so that the lubricating oil does not flow out.

A cotter pin 5 is provided to the left of the shaft 25. Specifically, a cotter 5 is provided on the left side of the shaft 25 for fixing the slotted nut 6 and preventing the slotted nut 6 from loosening.

The left side of the bearing chamber 17 is provided with a bolt 3, the bearing chamber 17 is connected with the waterproof bearing chamber 10 through the bolt 3, the right side of the bearing chamber 17 is provided with a motor support 22, the right side of the bearing chamber 17 is provided with a plurality of bolts 3, and the bearing chamber 17 is connected with the motor support 22 through the bolt 3. Specifically, the bolts 3 are used for fixing the bearing chamber 17 and the water-stop bearing chamber 10 and keeping the bearing chamber 17 and the water-stop bearing chamber 10 relatively stationary, and the bolts 3 are used for fixing the bearing chamber 17 and the motor bracket 22 and keeping the bearing chamber 17 and the motor bracket 22 relatively stationary.

The right side of the bearing chamber 17 is provided with a second bearing cover 19, the inner side of the second bearing cover 19 is provided with an oil seal 21, and the right side of the bearing 16 is provided with a locking nut 14. Specifically, the second bearing cover 19 can fix the outer ring of the bearing 16 to the bearing chamber 17, the lock nut 14 can fix the inner ring of the bearing 16 to the shaft 25, and the oil seal 21 can seal the lubricant inside the bearing chamber 17 and prevent the lubricant from flowing out.

The motor bracket 22 is fixed on the base 23. Specifically, the base 23 provides a mounting location for the motor bracket 22, and the motor bracket 22 can hold the motor.

Embodiment two to embodiment one, in embodiment two, the shaft sleeve 13 is sleeved on the outside of the shaft 25 to provide an installation position for the oil seal 21, the oil seal 21 can seal the lubricating oil inside the bearing chamber 17 to prevent the lubricating oil from flowing out, the cotter pin 5 is arranged on the left side of the shaft 25 to fix the slotted nut 6 and prevent the slotted nut 6 from loosening, the bolt 3 is used to fix the bearing chamber 17 and the water-stop bearing chamber 10 and keep the bearing chamber 17 and the water-stop bearing chamber 10 relatively stationary, the bolt 3 is used to fix the bearing chamber 17 and the motor bracket 22 and keep the bearing chamber 17 and the motor bracket 22 relatively stationary, the second bearing cover 19 can fix the outer ring of the bearing 16 and the bearing chamber 17, the lock nut 14 can fix the inner ring of the bearing 16 and the shaft 25, the oil seal 21 can seal the lubricating oil inside the bearing chamber 17 to prevent the lubricating oil from flowing out, the base 23 provides an installation position for the motor bracket 22, the motor bracket 22 can fix the motor.

The use method of the device comprises the following steps: open the motor, the axle 25 right-hand member is connected with the motor, therefore axle 25 follows the motor and rotates, the left impeller 7 of axle 25 also follows the rotation, drilling fluid flows into pump case 2 from funnel 4 in, under the rotation of impeller 7, drilling fluid obtains kinetic energy, flow out from outlet pipe 9, in the course of the work, water retaining ring 11 can prevent that water from getting into bearing room 17 in the gap between axle 25 and the primary shaft gland 12, when the sand pump need overhaul, at first open water drainage plug 1, discharge the drilling fluid in the pump case 2, then dismantle the bolt between water proof bearing room 10 and the pump case 2, alright detect inside the pump case 2, it is very convenient to dismantle.

The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the utility model in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the utility model may be embodied in practice with the teachings of the utility model. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims (6)

1. The utility model provides a drilling fluid is carried and is used vertical sand pump which characterized in that: the water-proof bearing pump comprises a pump shell (2), wherein a funnel (4) is arranged on the left side of the pump shell (2), a bolt (3) is arranged on the funnel (4), the funnel (4) is in bolted connection with the pump shell (2) through the bolt (3), a water drainage plug (1) is arranged below the pump shell (2), a water outlet pipe (9) is arranged above the pump shell (2), the bolt (3) is arranged on the water outlet pipe (9), the water outlet pipe (9) is in bolted connection with the pump shell (2) through the bolt (3), an impeller (7) is arranged on the inner side of the pump shell (2), a shaft (25) is arranged on the inner side of the impeller (7), a slotted nut (6) is arranged on the left side of the shaft (25), a pump cover (28) is arranged on the right side of the impeller (7), a water-proof bearing chamber (10) is arranged on the right side of the water-proof bearing chamber (10), a plurality of bearings (16) are arranged on the shaft (25) on the left inner side of the bearing chamber (17), the bearing chamber (17) is provided with a plurality of bearings (16) on the shaft (25) at the right inner side, the left side of the bearing (16) is provided with a locking nut (14), the left side end face of the bearing chamber (17) is provided with a first bearing cover (12), and the left side of the first bearing cover (12) is provided with a water retaining ring (11).

2. The vertical sand pump for conveying drilling fluid according to claim 1, wherein: and a shaft sleeve (13) is arranged on the shaft (25) at the inner side of the first bearing cover (12), and an oil seal (21) is arranged between the shaft sleeve (13) and the first bearing cover (12).

3. The vertical sand pump for drilling fluid delivery of claim 2, wherein: and a split pin (5) is arranged on the left side of the shaft (25).

4. The vertical sand pump for drilling fluid delivery of claim 3, wherein: bearing room (17) left side is equipped with bolt (3), bearing room (17) are connected with water proof bearing room (10) through bolt (3), bearing room (17) right side is equipped with motor support (22), bearing room (17) right side is equipped with a plurality of bolts (3), bearing room (17) are connected with motor support (22) through bolt (3).

5. The vertical sand pump for drilling fluid delivery of claim 4, wherein: bearing room (17) right side is equipped with second bearing gland (19), second bearing gland (19) inboard is equipped with oil blanket (21), bearing (16) right side is equipped with lock nut (14).

6. The vertical sand pump for drilling fluid delivery of claim 5, wherein: the motor support (22) is fixed on the base (23).

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