CN212318791U - Elastic valve seat for slurry pump - Google Patents

Abstract

The utility model relates to a slush pump accessory technical field, specifically speaking relates to elasticity disk seat for slush pump, including the disk seat body, the disk seat body includes the main valve seat body, is equipped with the seal groove on the lower extreme lateral wall of the main valve seat body, and the inboard upper end of the main valve seat body is fixed with the rubber circle through the glue adhesion, and this internal activity joint of disk seat has the valve body, and the bottom of disk seat body is equipped with the hydraulic cylinder, and the centre of hydraulic cylinder is equipped with the mounting groove, is fixed with through the glue adhesion on the inside wall of mounting groove with seal groove complex sealing. The elastic valve seat for the slurry pump can relieve the displacement generated when the valve body and the valve seat body are opened and closed, so that the contact stress and the abrasion between the valve body and the valve seat body are reduced; meanwhile, the valve seat body and the hydraulic cylinder can be connected tightly and stably, relative abrasion between the valve seat body and the hydraulic cylinder is reduced, and the service life of the valve seat body is prolonged.

Description

Elastic valve seat for slurry pump

Technical Field

The utility model relates to a slush pump accessory technical field, specifically speaking relates to elasticity disk seat for slush pump.

Background

A mud pump is a machine for delivering a washing fluid such as mud or water into a borehole during drilling, and is an important component of a drilling apparatus. According to statistics, about 80% of slurry pump valve bodies fail to reach the design life and fail in advance, and the maximum contact stress of the valve bodies and the valve seats occurs at the edge of the lowest part of the contact of the valve bodies and the valve seats. The maximum stress of the valve seat is the alternating stress applied to the valve seat when the valve body is opened and closed, and is the root of fatigue damage, the displacement of the valve body and the valve seat is about 1.2mm in work, and relative abrasion is generated, so that the valve seat or the valve body is ground out of a step; in addition, the valve seat is arranged in the hydraulic cylinder, when the valve body is opened and closed, the valve seat is stressed to extrude the hydraulic cylinder, and the degree of abrasion of the valve seat is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elasticity disk seat for mud pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

elastic valve seat for mud pump, including the disk seat body, the disk seat body includes the main valve seat body, be equipped with the seal groove on the lower extreme lateral wall of the main valve seat body, the inboard upper end of the main valve seat body is fixed with the rubber circle through the glue adhesion, this internal activity joint of disk seat has the valve body, the bottom of disk seat body is equipped with the hydraulic cylinder, the centre of hydraulic cylinder is equipped with the mounting groove, be fixed with through the glue adhesion on the inside wall of mounting groove with seal groove complex sealing washer.

Preferably, a stopper ring is integrally formed at a top end of the main valve seat body, and an outer diameter of the stopper ring is larger than an inner diameter of the mounting groove.

Preferably, the inboard lower extreme of the main valve seat body is connected with the registration arm through a plurality of connection pieces, the one end welded fastening of connection piece on the lower extreme inside wall of the main valve seat body, the other end welded fastening of connection piece is in on the lateral wall of registration arm.

Preferably, the valve body is matched with the size of the valve seat body.

Preferably, the valve body includes the valve body main part, the top integrated into one piece of valve body main part has last valve body pole, the bottom integrated into one piece of valve body main part has lower valve body pole, lower valve body pole with registration arm activity joint.

Preferably, the valve body main part outside cover is equipped with the valve circle, the valve circle with rubber circle contact.

Preferably, the mounting groove is matched with the size of the valve seat body.

Preferably, the cross-sectional shape of the seal ring is semicircular.

Preferably, an extension counter bore is arranged in the middle of the bottom surface of the mounting groove, the aperture of the extension counter bore is larger than or equal to the outer diameter of the lower valve body rod, and the lower valve body rod penetrates through the positioning pipe and then extends into the extension counter bore.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the elastic valve seat for the slurry pump, the hydrogenated nitrile rubber ring is additionally arranged in the sealing surface of the valve seat body, so that the displacement generated when the valve body and the valve seat body are opened and closed can be relieved, meanwhile, due to the elastic supporting effect of rubber, the contact stress between the valve body and the valve seat body is greatly reduced, the abrasion between the valve body and the valve seat body is slowed down, and the service lives of the valve body and the valve seat body are prolonged;

2. this elasticity disk seat for mud pump makes disk seat body and hydraulic cylinder be connected closely firmly through set up the seal groove and the sealing washer of mutually supporting between disk seat body and hydraulic cylinder, avoids disk seat body displacement, alleviates the relative wearing and tearing between disk seat body and the hydraulic cylinder, has further prolonged disk seat body's life.

Drawings

Fig. 1 is a schematic view of the overall structure of the utility model;

FIG. 2 is a schematic view of the whole half-section structure of the utility model;

FIG. 3 is a schematic structural view of a valve seat body of the utility model;

FIG. 4 is a schematic view of a half-section structure of a valve seat body in the utility model;

FIG. 5 is a schematic structural view of a valve body of the utility model;

FIG. 6 is a schematic view of a half-section structure of a valve body in the utility model;

fig. 7 is a schematic diagram of a half-section structure of the middle hydraulic cylinder of the utility model.

In the figure:

1. a valve seat body; 11. a main valve seat body; 111. a limiting ring; 112. a sealing groove; 12. a positioning tube; 121. connecting sheets; 13. a rubber ring;

2. a valve body; 21. a valve body main body; 211. an upper valve body stem; 212. a lower valve body stem; 22. a valve ring;

3. a hydraulic cylinder; 31. mounting grooves; 32. a seal ring; 33. extending the counterbore.

Detailed Description

The technical solution in the present invention will be clearly and completely described below with reference to the drawings in the present invention, and it is obvious that the described utility model is only a part of the utility model rather than the whole utility model. Based on utility model provides a, all other utility model that the ordinary skilled person in the art obtained under the prerequisite of not making creative work all belong to the utility model discloses the scope of protection.

In the description of the present invention, it is to be understood that the terms "middle", "upper", "lower", "top", "bottom", "inner", "outer", and the like, 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, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1-7, the present invention provides a technical solution:

elastic valve seat for mud pump, including disk seat body 1, disk seat body 1 includes the main valve seat body 11, be equipped with seal groove 112 on the lower extreme lateral wall of the main valve seat body 11, the inboard upper end of the main valve seat body 11 is fixed with rubber circle 13 through the glue adhesion, the activity joint has valve body 2 in the disk seat body 1, the bottom of disk seat body 1 is equipped with hydraulic cylinder 3, the centre of hydraulic cylinder 3 is equipped with mounting groove 31, be fixed with through the glue adhesion on the inside wall of mounting groove 31 with seal groove 112 complex sealing washer 32.

In this embodiment, the top end of the main valve seat 11 is integrally formed with the limiting ring 111, and the outer diameter of the limiting ring 111 is larger than the inner diameter of the mounting groove 31, so that the valve seat body 1 can be prevented from sinking into the mounting groove 31, and the extrusion and abrasion of the valve seat body 1 to the mounting groove 31 can be reduced.

Further, the inboard lower extreme of main valve seat body 11 is connected with registration arm 12 through a plurality of connection pieces 121, and the one end welded fastening of connection piece 121 is on the lower extreme inside wall of main valve seat body 11, and the other end welded fastening of connection piece 121 makes registration arm 12 durable firm on the lateral wall of registration arm 12, and registration arm 12 makes valve body 2 can be accurate joint in valve seat body 1 smoothly.

Specifically, the number of the connecting pieces 121 is at least two, and a gap is reserved between two adjacent connecting pieces 121, so that the gap can prevent the valve body 2 and the valve seat body 1 from being too tightly contacted, and the abrasion between the two parts is reduced.

In this embodiment, the valve body 2 is adapted to the valve seat body 1 in size.

Further, the valve body 2 includes a valve body main body 21, an upper valve body rod 211 is integrally formed at the top end of the valve body main body 21, a lower valve body rod 212 is integrally formed at the bottom end of the valve body main body 21, and the lower valve body rod 212 is movably clamped with the positioning tube 12.

Further, the valve ring 22 is sleeved on the outer side of the valve body main body 21, and the valve ring 22 is in contact with the rubber ring 13, so that the friction force between the valve body 2 and the valve seat body 1 can be increased, and the displacement between the valve seat body 1 and the valve body 2 is reduced.

In this embodiment, the mounting groove 31 is adapted to the size of the valve seat body 1.

Further, the cross-sectional shape of the packing 32 is semicircular, so that the valve seat body 1 can be more easily mounted in the mounting groove 31 or dismounted from the mounting groove 31.

Specifically, through the cooperation of the seal ring 32 and the seal groove 112, the sealing performance between the valve seat body 1 and the hydraulic cylinder 3 can be enhanced, and the displacement of the valve seat body 1 in the mounting groove 31 when the valve body 2 and the valve seat body 1 are closed is reduced, so that the abrasion between the valve seat body 1 and the hydraulic cylinder 3 is reduced.

Furthermore, an extension counter bore 33 is arranged in the middle of the bottom surface of the mounting groove 31, the aperture of the extension counter bore 33 is larger than or equal to the outer diameter of the lower valve body rod 212, and the lower valve body rod 212 penetrates through the positioning pipe 12 and then extends into the extension counter bore 33.

In addition, the rubber ring 13 and the sealing ring 32 are preferably made of hydrogenated nitrile rubber, the material of the rubber ring has good cold resistance, heat resistance, wear resistance and compression resistance, and can not deform permanently, so that the displacement generated when the valve body 2 and the valve seat body 1 are opened and closed can be effectively relieved, and meanwhile, due to the elastic supporting effect of the rubber, the contact stress between the valve body 2 and the valve seat body 1 is greatly relieved, and the abrasion of the valve body and the valve seat body is relieved.

The utility model discloses an elastic valve seat for mud pump is when using, at first install the mounting groove 31 of hydraulic cylinder 3 with disk seat body 1 in to ensure sealing washer 32 and seal groove 112 sealing contact, secondly say on hydraulic cylinder 3 installs the corresponding position of slush pump respectively together with disk seat body 1, valve body 2, when using, valve body 2 is closed with disk seat body 1, valve body 2 is preferred to contact with rubber circle 13, has alleviateed its wearing and tearing to disk seat body 1.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. The technical personnel of this trade should understand, the utility model does not receive the restriction of above-mentioned utility model, and what describe in above-mentioned utility model and the description only does the preferred example of the utility model to need not restrict the utility model, under the prerequisite that does not deviate from the spirit and scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the scope of the utility model that claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. Elastic valve seat for mud pump, its characterized in that: including disk seat body (1), disk seat body (1) includes the disk seat body (11), be equipped with seal groove (112) on the lower extreme lateral wall of the disk seat body (11), the inboard upper end of the disk seat body (11) is fixed with rubber circle (13) through the glue adhesion, the activity joint has valve body (2) in disk seat body (1), the bottom of disk seat body (1) is equipped with hydraulic cylinder (3), the centre of hydraulic cylinder (3) is equipped with mounting groove (31), be fixed with through the glue adhesion on the inside wall of mounting groove (31) with seal groove (112) complex sealing washer (32).

2. The resilient valve seat for a mud pump of claim 1, wherein: the top integrated into one piece of main valve seat body (11) has spacing circle (111), the external diameter of spacing circle (111) is greater than the internal diameter of mounting groove (31).

3. The resilient valve seat for a mud pump of claim 1, wherein: the inboard lower extreme of the main valve seat body (11) is connected with registration arm (12) through a plurality of connection pieces (121), the one end welded fastening of connection piece (121) on the lower extreme inside wall of the main valve seat body (11), the other end welded fastening of connection piece (121) on the lateral wall of registration arm (12).

4. The resilient valve seat for a mud pump of claim 1, wherein: the valve body (2) is matched with the valve seat body (1) in size.

5. The resilient valve seat for a mud pump of claim 3, wherein: valve body (2) include valve body main part (21), the top integrated into one piece of valve body main part (21) has last valve body pole (211), the bottom integrated into one piece of valve body main part (21) has lower valve body pole (212), lower valve body pole (212) with registration arm (12) activity joint.

6. The resilient valve seat for a mud pump of claim 5, wherein: the outside cover of valve body main part (21) is equipped with valve circle (22), valve circle (22) with rubber circle (13) contact.

7. The resilient valve seat for a mud pump of claim 1, wherein: the mounting groove (31) is matched with the valve seat body (1) in size.

8. The resilient valve seat for a mud pump of claim 1, wherein: the cross section of the sealing ring (32) is semicircular.

9. The resilient valve seat for a mud pump of claim 5, wherein: an extension counter bore (33) is arranged in the middle of the bottom surface of the mounting groove (31), the aperture of the extension counter bore (33) is larger than or equal to the outer diameter of the lower valve body rod (212), and the lower valve body rod (212) penetrates through the positioning pipe (12) and then extends into the extension counter bore (33).

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