CN210686274U

CN210686274U - Special valve seat device of HQ pump

Info

Publication number: CN210686274U
Application number: CN201921271740.3U
Authority: CN
Inventors: 魏福芝; 韩华林; 薛嘉林
Original assignee: Shandong Yukos Petroleum Equipment Co ltd
Current assignee: Shandong Yukos Petroleum Equipment Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-06-05
Anticipated expiration: 2030-03-26

Abstract

The utility model provides a special valve seat device of HQ pump which characterized in that: the valve seat is arranged on an annular supporting seat, a bearing column used for supporting a valve body is arranged in the annular supporting seat, and ribs connected to the inner wall of the annular supporting seat are arranged on the outer wall of the bearing column; the valve seat with annular supporting seat installs in proper order in puller head lower part, puller head lower part be provided with rib complex slot, the slot opening part is provided with and is used for the interlock the draw-in groove of rib, puller head middle part surface is provided with and prevents the bulge loop of puller head slippage downwards, puller head upper portion is provided with the screw hole that is used for connecting the lead screw of drawing, the utility model provides a puller head can effectually avoid because long-time fluid impact wear causes the deformation and current mechanical operation inconvenient problem when leading to changing, conveniently dismantles and changes the valve seat of damage, the simplified operation flow.

Description

Special valve seat device of HQ pump

Technical Field

The utility model relates to an oil development apparatus field, concretely relates to special valve seat device of HQ pump.

Background

The valve body and the valve seat are important components of the pump, the function of the valve body and the valve seat is to control the opening and closing of the suction end and the discharge end of the pump, and the valve body and the valve seat are frequently impacted and worn by high-pressure fluid during working and are easy to damage, so that the valve body and the valve seat need to be frequently replaced.

The valve seat taking-out device adopted at present generally adopts the matching use of a pull claw and a pull rod, the pull claw is divided into two parts, and the two parts are locked and fixed by a connecting piece. The bottom of the two parts of the pull claw is tightly attached to and extends into the valve seat, the pull rod is screwed into the pull claw, the two parts of the pull claw expand, the outer wall of the pull claw is abutted to the inner wall of the valve seat, and the flanging of the pull claw is buckled on the end face of the bottom of the valve seat. The pull rod applies force to control the pull claw to pull out the valve seat.

However, the long-term fluid impact and abrasion of the valve seat can cause the lower surface and the inner wall of the valve seat to be corroded or deformed, so that the pulling device cannot be used.

Disclosure of Invention

An object of the utility model is to overcome not enough among the prior art, provide a special valve seat device of HQ pump, possess high-efficient swift, labour saving and time saving's advantage.

The utility model provides a special valve seat device of HQ pump which characterized in that: the valve seat is arranged on an annular supporting seat, a bearing column used for supporting a valve body is arranged in the annular supporting seat, and ribs connected to the inner wall of the annular supporting seat are arranged on the outer wall of the bearing column; the valve seat with the annular supporting seat is installed in puller head lower part in proper order, puller head lower part be provided with rib complex slot, the slot opening part is provided with and is used for the interlock the draw-in groove of rib, puller head middle part surface is provided with and prevents the bulge loop of puller head slippage downwards, puller head upper portion is provided with the screw hole that is used for connecting drawing the lead screw.

In order to further optimize the utility model discloses, can prefer following technical scheme for use:

preferably, the upper surface of the annular supporting seat is attached to the lower surface of the valve seat, and the inner diameter of the annular supporting seat is the same as that of the valve seat.

Preferably, the bearing column is a hollow cylinder, the rib is arranged on the central axis of the annular supporting seat, and a clamping block matched with the clamping groove is arranged on the rib.

Preferably, the fixture block is connected with the outer wall of the bearing column and the rib, the section of the fixture block is trapezoidal, the upper end face of the fixture block is lower than the upper end face of the bearing column, and the lower end face of the fixture block is flush with the lower end face of the bearing column.

Preferably, the puller head is of a tubular structure, the upper end of the groove extends to the convex ring, the lower end of the groove extends to the lower end face of the puller head, and the width of the groove is larger than that of the clamping block.

The beneficial effects of the utility model reside in that: the groove is formed in the puller head and matched with the rib, the clamping groove and the clamping block are meshed to enable the puller head to form a firm common stress body together with the valve seat and the annular supporting seat, the annular supporting seat and the valve seat are taken out through the tensile force of the external tension device acting on the drawing screw rod, the operation is convenient and fast, the problem of difficulty in taking out due to deformation is effectively solved, operation steps are simplified, and the work efficiency is improved.

Drawings

FIG. 1 is a cross-sectional view of the present novel valve seat assembly;

FIG. 2 is a top view of the annular support base shown in FIG. 1;

FIG. 3 is a front view of the puller head portion of FIG. 1;

FIG. 4 is a front cross-sectional view of the annular support seat of FIG. 1.

In the figure: the drawing machine comprises a drawing machine head 1, a ring-shaped supporting seat 2, a valve seat 3, a drawing screw rod 4, a groove 11, a clamping groove 12, a convex ring 13, a rib 21, a bearing column 22 and a clamping block 23.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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.

Example 1

As shown in fig. 1-3, the utility model provides a special valve seat device for HQ pump, including puller 1, annular supporting seat 2, valve seat 3, drawing lead screw 4, slot 11, draw-in groove 12, bulge loop 13, rib 21, bearing post 22, fixture block 23, valve seat 3 is installed on annular supporting seat 2, the inside of annular supporting seat 2 is provided with bearing post 22 for supporting the valve body, the outer wall of bearing post 22 is provided with rib 21 connected with the inner wall of annular supporting seat 2; the valve seat 3 and the annular supporting seat 2 are sequentially arranged at the lower part of the puller head 1, the lower part of the puller head 1 is provided with a groove 11 matched with the rib 21, the opening of the groove 11 is provided with a clamping groove 12 used for meshing the rib 21, the outer surface of the middle part of the puller head 1 is provided with a convex ring 13 for preventing downward slippage, the upper part of the puller head 1 is provided with a threaded hole used for connecting a drawing screw rod 4, the upper surface of the annular supporting seat 1 is attached to the lower surface of the valve seat 3, the inner diameter of the annular supporting seat 2 is the same as that of the valve seat 3, the bearing column 22 is a hollow cylinder, the hollow part is used for placing the lower part of the valve body, the rib 21 is arranged on the central axis of the annular supporting seat 2 and is connected with the outer surface of the bearing; the fixture block 23 is connected with the outer wall of the bearing column 22 and the rib 21, the section of the fixture block 23 is trapezoidal, the upper end surface of the fixture block 23 is lower than the upper end surface of the bearing column 22, the lower end surface of the fixture block 23 is flush with the lower end surface of the bearing column, and the maximum height of the fixture block 23 is smaller than that of the bearing column 22; the puller head 1 is of a tubular structure, the groove 11 is formed in the side wall of the puller head 1 and penetrates through the side wall of the puller head 1, the upper end of the groove 11 extends to the convex ring 13, the lower end of the groove extends to the lower end face of the puller head 1, the groove 11 is matched with the rib 21, and the width of the groove 12 is larger than that of the rib 21; the width of the convex ring 13 is larger than the width of the gap between the puller head 1 and the inner wall of the valve seat 3, the clamping groove 12 is matched with the clamping block 23 for use, the upper edge of the clamping groove 12 is flush with the upper edge of the clamping block 23, and the lower edge of the clamping groove 12 is flush with the lower edge of the bearing column 22.

The lower part of the puller head 1 is inserted into the apertures of the valve seat 3 and the annular supporting block 3, a threaded hole in the upper part of the puller head 1 is connected with a drawing screw rod 4 through matching with threads on the outer surface of the lower part of the drawing screw rod 4, the upper part of the drawing screw rod 4 is detachably connected with an external tension device, and the external tension device is preferably a hydraulic pump.

In actual operation, when the valve seat 3 needs to be taken out, the puller head 1 is rotated clockwise to enable the clamping block 23 to be meshed with the clamping groove 12, at the moment, the puller head 1, the annular supporting seat 2 and the valve seat 3 form a stress community, the puller head 1 is in threaded connection with the drawing screw rod 4, an external pressure device hydraulic pump provides an outward pulling force for the drawing screw rod 4, and the drawing screw rod 4 drives the puller head 1, the annular supporting block 2 and the stress community formed by the valve seat 3 to move upwards until the stress community leaves a pump cavity; the puller head 1 is rotated anticlockwise during replacement, the clamping block 23 is separated from the clamping groove 12, the annular supporting seat 2 and the valve seat 3 are sequentially taken down, the new valve seat 3 and the new annular supporting block 2 are replaced, the puller head 1 is sequentially installed on the puller head 1 after replacement is finished, the puller head 1 is rotated clockwise, a new stress body is formed, and the puller head 1 is installed in the pump cavity and reset in an anticlockwise rotation mode to start working.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a special valve seat device of HQ pump which characterized in that: the valve seat is arranged on an annular supporting seat, a bearing column used for supporting a valve body is arranged in the annular supporting seat, and ribs connected to the inner wall of the annular supporting seat are arranged on the outer wall of the bearing column; the valve seat with the annular supporting seat is installed in puller head lower part in proper order, puller head lower part be provided with rib complex slot, the slot opening part is provided with and is used for the interlock the draw-in groove of rib, puller head middle part surface is provided with and prevents the bulge loop of puller head slippage downwards, puller head upper portion is provided with the screw hole that is used for connecting drawing the lead screw.

2. The valve seat device special for the HQ pump according to claim 1, wherein: the annular supporting seat upper surface is laminated with the valve seat lower surface, annular supporting seat internal diameter is the same with the valve seat internal diameter.

3. The valve seat device special for the HQ pump according to claim 1, wherein: the bearing column is a hollow cylinder, the rib is arranged on the central axis of the annular supporting seat, and a clamping block matched with the clamping groove is arranged on the rib.

4. The valve seat device special for the HQ pump as claimed in claim 3, wherein: the fixture block is connected with the outer wall of the bearing column and the rib, the section of the fixture block is trapezoidal, the upper end face of the fixture block is lower than the upper end face of the bearing column, and the lower end face of the fixture block is flush with the lower end face of the bearing column.

5. The valve seat device special for the HQ pump as claimed in claim 3, wherein: the puller head is of a tubular structure, the upper end of the groove extends to the convex ring, the lower end of the groove extends to the lower end face of the puller head, and the width of the groove is larger than that of the clamping block.