CN212155123U

CN212155123U - Clamp and fracturing pump

Info

Publication number: CN212155123U
Application number: CN202020883488.8U
Authority: CN
Inventors: 刘小鹏; 赵洪波
Original assignee: Sany Petroleum Intelligent Equipment Co Ltd
Current assignee: Sany Petroleum Intelligent Equipment Co Ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-12-15
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses a clamp and fracturing pump relates to and can dismantle fastener technical field. This clamp includes first clamp body and second clamp body and the coupling assembling that can involutory each other, the both ends of first clamp body and the both ends of second clamp body correspond through coupling assembling respectively and connect, be formed with the holding chamber between involutory first clamp body and second clamp body, it is fixed by the clamp to arrange the holding chamber in by the tip of connecting piece, one side of keeping away from the second clamp body at first clamp body sets up dismantlement portion, make first clamp body can be connected through dismantlement portion and external drive, exert the drive power of keeping away from by the connecting piece direction to first clamp body through external drive, make first clamp body with by the connecting piece separation. Above-mentioned clamp simple structure, it is convenient to dismantle, can effectively use manpower sparingly and time, and the fracturing pump of using this clamp is torn open and is examined and maintain conveniently, and production efficiency is high.

Description

Clamp and fracturing pump

Technical Field

The utility model relates to a can dismantle fastener technical field particularly, relate to a clamp and fracturing pump.

Background

At present, a reciprocating horizontal multi-pulling mode is generally adopted by fracturing pumps at home and abroad, the fracturing pump generally consists of a power end and a hydraulic end, the power end is used for transferring the energy of a power system to the hydraulic end, and the hydraulic end is used for conveying liquid and converting mechanical energy into hydraulic energy.

The plunger at the hydraulic end of the fracturing pump does high-speed reciprocating motion in the cavity at the hydraulic end, the existing plunger is rigidly fixed with the small connecting rod at the power end, the hoop is a fastener for fixing the plunger and the small connecting rod, and the hoop needs to be frequently disassembled in the disassembly and inspection maintenance process of the fracturing pump. In the prior art, in order to ensure that the small connecting rod is reliably connected with the plunger, the inner connecting surface of the hoop is usually designed into a conical surface, the hoop is not easy to loosen after the plunger and the small connecting rod are pressed, and the hoop, the plunger and the small connecting rod are in a locked state. When the clamp is disassembled, the clamp is separated from the plunger and the small connecting rod by adopting a manual knocking method, the disassembling method not only consumes manpower, but also wastes time, and the disassembly and inspection maintenance efficiency of the fracturing pump is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamp and fracturing pump to solve prior art, the clamp with by connecting piece "locking" back, need the manual work to strike could make the clamp with by the connecting piece separation, consume manpower and time, and then influence production efficiency's technical problem.

The embodiment of the utility model is realized like this:

a clamp comprises a first clamp body, a second clamp body and a connecting assembly, wherein the first clamp body and the second clamp body can be mutually involutory; two ends of the first clamp body and two ends of the second clamp body are correspondingly connected through the connecting components respectively, and an accommodating cavity is formed between the first clamp body and the second clamp body which are closed together and used for fixing a connected piece; first clamp body is kept away from one side of second clamp body is equipped with dismantlement portion, dismantlement portion be used for with external drive connection with driven with by the connecting piece separation.

The utility model discloses in the embodiment of preferred, above-mentioned screw hole of dismantling the portion for seting up on first clamp body, screw hole and external driven power take off's screw thread match are connected.

The utility model discloses in the embodiment of preferred, above-mentioned dismantlement portion is the blind hole of seting up on first clamp body, is equipped with the draw-in groove on the blind hole lateral wall, and external driven power take off end is used for stretching into in the blind hole, and the convex part cooperation card of power take off end lateral wall goes into the draw-in groove internal fixation.

The utility model discloses in the embodiment of the preferred, above-mentioned dismantlement portion is the cylinder boss that the center was equipped with the screw thread through-hole, and the screw thread through-hole link up cylinder boss both sides bottom surface, and the fixed setting in one side of second clamp body is kept away from to the bottom surface of cylinder boss and first clamp body, and the screw thread through-hole is connected with external driven power take off's screw thread cooperation.

In a preferred embodiment of the present invention, the first band body includes a first fixing portion and first extending portions respectively connected to two ends of the first fixing portion, the second band body includes a second fixing portion and second extending portions respectively connected to two ends of the second fixing portion, the connecting assembly includes a first connecting hole respectively disposed on the first extending portion and a second connecting hole disposed on the second extending portion, and a connecting member sequentially passing through the first connecting hole and the second connecting hole; the disassembling part is arranged on the first fixing part.

In the preferred embodiment of the present invention, the inner surface of the first fixing portion and the inner surface of the second fixing portion are circumferentially provided with a groove, the first clamp body and the second clamp body are closed to each other, and the grooves of the first fixing portion and the second fixing portion are communicated to form an annular groove.

In a preferred embodiment of the present invention, the cross section of the groove of the first fixing portion and the second fixing portion is trapezoidal.

In a preferred embodiment of the present invention, the end surface of the first connecting hole is a plane, and the end surface of the second connecting hole is a plane.

In a preferred embodiment of the present invention, the first connecting hole is a through hole, the second connecting hole is a threaded hole, the connecting member is a screw, and the screw passes through the through hole and is in threaded connection with the threaded hole; or the first connecting hole and the second connecting hole are through holes, the connecting piece is a bolt and a nut which are matched with each other, and the bolt is fixedly connected through the nut after sequentially penetrating through the through holes.

A fracturing pump comprises a power end and a liquid end which are connected with each other, and a clamp, wherein the clamp is clamped between the power end and the liquid end.

The utility model discloses beneficial effect includes:

the clamp surface of prior art does not have the position that can be connected with external drive, even will increase external force and dismantle it, also does not have firm mode and can act on the clamp, consequently, just adopts the mode of artifical striking. And the embodiment of the utility model provides a clamp has set up dismantlement portion on first clamp body, and this dismantlement portion can conveniently realize stably being connected with external drive, exerts the drive power of keeping away from by the connecting piece direction to the clamp body through external drive, makes the clamp body with by the connecting piece separation. The embodiment of the utility model provides a clamp simple structure dismantles the convenience, uses manpower sparingly and time, has effectively solved among the prior art clamp and by the difficult technical problem who dismantles behind connecting piece "locking". Use the embodiment of the utility model provides a fracturing pump of clamp is torn open and is examined and maintain the convenience, need not consume too much manpower, has effectively saved the time of tearing open and examining and maintaining.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view illustrating a three-dimensional structure of a hoop according to the present invention;

fig. 2 is a main sectional view of a clamp according to the present invention;

fig. 3 is one schematic view of a working mode of a clamp with a threaded hole as a detachable portion in the clamp according to the present invention;

fig. 4 is a second schematic view of the operation mode of the clamp according to the present invention, in which the detachable portion is a threaded hole;

fig. 5 is a schematic view of a working mode of a clamp according to the present invention, in which the detachable portion is a blind hole;

fig. 6 is a second schematic view of the working mode of the clamp according to the present invention, in which the detachable portion is a blind hole;

fig. 7 is a schematic view of a working mode of a clamp according to the present invention, in which the detachable portion is a cylindrical boss;

fig. 8 is a second schematic view of the working mode of the clamp according to the present invention, in which the disassembly portion is a cylindrical boss.

Icon: 100-a clamp; 110-a first clip body; 111-a detachment section; 1111-card slot; 1112-a cylindrical boss; 1113-threaded through hole; 112-a first fixed part; 113-a first extension; 120-a second clip body; 122-a second fixed part; 123-a second extension; 130-a connection assembly; 131-a first connection hole; 132-a second connection hole; 140-a groove; 200-external drive; 210-a convex part; 300-a power end; 400-fluid end.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally 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.

Referring to fig. 1 and fig. 2, the present embodiment provides a clamp 100, which includes a first clamp body 110 and a second clamp body 120 that can be folded together, and a connecting assembly 130; the two ends of the first clamp body 110 and the two ends of the second clamp body 120 are correspondingly connected through the connecting assembly 130, and an accommodating cavity is formed between the involutory first clamp body 110 and the involutory second clamp body 120 and is used for accommodating two connected parts which need to be connected together. After the two connected members are placed in the receiving cavities, the first and

second band bodies

110 and 120 are connected together by the connecting member 130, so that the two connected members are clamped by the first and

second band bodies

110 and 120. Referring to fig. 3 and 4 in combination, when it is desired to disassemble the clip 100, a technician first removes the connecting assembly 130 that connects the first clip body 110 and the second clip body 120. However, since the first and

second band bodies

110 and 120 are in interference connection with the connected member, even if the connection assembly 130 is removed due to long clamping, the first and

second band bodies

110 and 120 cannot be automatically separated from the connected member. In the prior art, the first clamp body 110 and the second clamp body 120 are usually separated from the connected member by manual knocking, but when the first clamp body 110 and the second clamp body 120 are mutually combined, the first clamp body 110 and the second clamp body 120 can only be dropped by knocking the side surfaces of the first clamp body 110 and the second clamp body 120, which is time-consuming and labor-consuming, and can seriously affect the removal efficiency of the clamp 100. Therefore, a detaching portion 111 is provided on a side of the first band body 110 away from the second band body 120, and the detaching portion 111 is used for connecting with the external driver 200 to be driven and separated from the connected member. The external connection driver 200 is connected to the detaching part 111 to separate the first band body 110 from the two connected members, thereby completing the detachment of the band 100.

It should be noted that the first band body 110 and the second band body 120 can be mutually folded, and a receiving cavity is formed between the pair and the back. The cross section of the accommodating cavity can be circular or polygonal, and is mainly determined by the specific shape of the connecting end of the connected piece. Since the connected end is generally cylindrical, the receiving cavity is generally circular in cross-section. The first clamp body 110 and the second clamp body 120 may have the same or different profiles and accommodating spaces; the quantity of clamp body can be two, also can be three or more, and its accommodation space can form the holding chamber jointly after all clamp bodies are involuted. The removal portion 111 may be provided on the first band body 110 alone, may be provided on the second band body 120 alone, or may be provided on both the first band body 110 and the second band body 120. Preferably, the detaching portion 111 is integrally formed with the first or

second band body

110 or 120 to satisfy strength required for detachment.

Above-mentioned clamp 100 simple structure, it is convenient to dismantle, uses manpower sparingly and time, has effectively solved among the prior art clamp and by the difficult technical problem of dismantling behind the connecting piece "locking". Be applied to fracturing pump with above-mentioned clamp 100 for connect power end 300 and the hydraulic end 400 in the fracturing pump, then this fracturing pump is torn open and is examined and maintain the convenience, need not consume too much manpower, can effectively save the time of tearing open and examining and maintaining of fracturing pump.

In any of the above technical solutions, referring to fig. 3 and 4, optionally, the detaching portion 111 is a threaded hole formed in the first clamp body 110, and the threaded hole is connected with a thread of a power output end of the external drive 200 in a matching manner.

The detaching portion 111 is a threaded hole formed in the first band body 110, and correspondingly, a screw thread matched with the power output end of the external driver 200 is formed in the power output end. When the clamp 100 needs to be disassembled, the power output end of the external drive 200 extends into the threaded hole, the external drive 200 is rotated, after the thread of the power output end of the external drive 200 is screwed into the threaded hole for a certain distance, the position of the external drive 200 in the radial direction of the first clamp body 110 is kept motionless, and only rotation is performed, at the moment, the internal thread and the external thread continue to be screwed, the external drive 200 can apply pulling force to the first clamp body 110 to keep away from the connected piece, and the first clamp body 110 is separated from the connected piece. Of course, the screw thread of the power output end of the external driver 200 can also be directly screwed into the threaded hole, and after it is determined that the external driver 200 and the first clamp body 110 are stably connected, the external driver 200 is directly applied with a pulling force in the direction away from the connected piece, so that the first clamp body 110 is separated from the connected piece.

In any of the above technical solutions, optionally, referring to fig. 5 and fig. 6, the detaching portion 111 is a blind hole formed in the first band body 110, a clamping groove 1111 is formed in a side wall of the blind hole, a power output end of the external drive 200 is used for extending into the blind hole, and the convex portion 210 of the side wall of the power output end is clamped into the clamping groove 1111 for fixation.

The detaching portion 111 is not limited to one structure, and the detaching portion 111 may be a blind hole formed in the first band body 110, and a locking groove 1111 may be formed in a side wall of the blind hole. At this time, the two support arms of the external drive 200 can rotate relatively, and the end of the support arm is provided with a convex portion 210 for being clamped with the clamping groove 1111. Two support arms with external drive 200 stretch into the blind hole, make the terminal convex part 210 of support arm just block in the draw-in groove 1111, then, exert the pulling force of keeping away from by the connecting piece side to external drive 200, and then make first clamp body 110 with by the connecting piece separation. Of course, the detachable portion 111 may be a through hole having a side wall with a slot 1111.

When the thickness between the inner surface and the outer surface of the first band body 110 is small, the strength of the first band body 110 is seriously reduced by directly punching the first band body 110, and a large force cannot be applied to a place where the detachable portion 111 is connected to the external driver 200. Therefore, in any of the above technical solutions, optionally, referring to fig. 7 and fig. 8, the detaching portion 111 is a cylindrical boss 1112 with a threaded through hole 1113 at the center, the threaded through hole 1113 penetrates through bottom surfaces of two sides of the cylindrical boss 1112, a bottom surface of the cylindrical boss 1112 is fixedly disposed on a side of the first clip body 110 away from the second clip body 120, and the threaded through hole 1113 is connected to a thread of a power output end of the external drive 200 in a matching manner.

The cylindrical boss 1112 can increase the matching length between the detachable portion 111 and the external driver 200, and when the thickness between the inner surface and the outer surface of the first clamp body 110 is small, the connecting portion of the detachable portion 111 and the external driver 200 can bear large acting force.

In any of the above technical solutions, optionally, referring to fig. 1 and 2, the first band body 110 includes a first fixing portion 112 and first extending portions 113 respectively connected to two ends of the first fixing portion, the second band body 120 includes a second fixing portion 122 and second extending portions 123 respectively connected to two ends of the second fixing portion, the connecting assembly 130 includes a first connecting hole 131 respectively disposed on the first extending portion 113 and a second connecting hole 132 disposed on the second extending portion 123, and a connecting member sequentially passing through the first connecting hole 131 and the second connecting hole 132; the detaching portion 111 is disposed on the first fixing portion 112.

In order to stabilize the axial connection between the connected components and prevent the connected components from moving axially along the band 100 after being stressed, in any of the above technical solutions, optionally, referring to fig. 1 to 3, a groove 140 is respectively circumferentially provided on an inner surface of the first fixing portion 112 and an inner surface of the second fixing portion 122, the first band body 110 and the second band body 120 are abutted, and the grooves 140 of the first fixing portion 112 and the second fixing portion 122 are communicated to form a ring groove.

It should be noted that the shape of the groove 140 is matched with the connecting end of the connected member, so that the connecting end of the connected member is just placed in the groove 140 and fixed in the axial direction of the clip 100.

In any of the above technical solutions, referring to fig. 3 and 5, the cross section of the groove 140 of the first fixing portion 112 and the second fixing portion 122 is a trapezoid.

The inner connecting surface of the clip 100 is a conical surface, so that the connected piece can be better pressed, and the connected piece is not easy to loosen.

In any of the above technical solutions, optionally, an end surface of the first connection hole 131 is a plane, and an end surface of the second connection hole 132 is a plane.

Set up the terminal surface of first connecting hole 131 and second connecting hole 132 into the plane, can make the connecting piece and the better in close contact with of first clamp body 110 and second clamp body 120, increase and close tight dynamics, make the difficult pine of connecting piece take off.

In any of the above technical solutions, optionally, the first connection hole 131 is a through hole, the second connection hole 132 is a threaded hole, the connection member is a screw, and the screw penetrates through the through hole and is in threaded connection with the threaded hole; or, the first connection hole 131 and the second connection hole 132 are through holes, the connection member is a bolt and a nut that are engaged with each other, and the bolt is fixedly connected through the nut after sequentially passing through the through holes.

The first clamp body 110 and the second clamp body 120 can be connected through screws, and nuts are not needed for screw connection, so that the structure is simple and compact; of course, the first clamp body 110 and the second clamp body 120 can be connected by bolts, the machining precision requirements of the first connecting hole 131 and the second connecting hole 132 by the bolts are low, and the first clamp body and the second clamp body are convenient to detach.

The working principle of the clamp 100 is as follows: the clip 100 includes first and

second clip bodies

110, 120 that are mutually engageable and a connection assembly 130. When two connected pieces need to be connected, the two connected pieces are respectively placed into the accommodating cavities formed between the first clamp body 110 and the second clamp body 120, and then the first clamp body 110 and the second clamp body 120 are fixed by the connecting assembly 130, so that the connected pieces are clamped. When the clamp 100 needs to be disassembled, the connecting assembly 130 is disassembled, the external drive 200 is used for being connected with the disassembling part 111 on the first clamp body 110, the driving force far away from the connected piece is provided for the first clamp body 110, the first clamp body 110 is separated from the connected piece, then the second clamp body 120 is knocked manually, the second clamp body 120 is also separated from the connected piece, and the clamp 100 is disassembled. This clamp 100 simple structure, convenient to detach can effectively use manpower sparingly, improves and dismantles efficiency.

The present embodiment also provides a frac pump that includes a power end 300 and a fluid end 400 that are connected to each other, and a clamp 100 as described above, wherein the clamp 100 is clamped between the power end 300 and the fluid end 400. The clamp 100 used by the fracturing pump is simple in structure and convenient to detach, and does not need too much manpower and time to detach, inspect and maintain.

In the foregoing explanation of the clamp 100, the operation manner, the operation principle, and the like of the clamp 100 when the clamp is installed on a fracturing pump have been described in detail, and are not described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a clamp, its characterized in that includes first clamp body and second clamp body and the coupling assembling that can close each other, the both ends of first clamp body with the both ends of second clamp body are passed through respectively coupling assembling corresponds the connection, closing first clamp body with be formed with the holding chamber between the second clamp body for to being fixed by the connecting piece, first clamp body is kept away from one side of second clamp body is equipped with dismantlement portion, dismantlement portion be used for with external drive connection in order to receive the drive with by the connecting piece separation.

2. The clamp of claim 1, wherein the removal portion is a threaded hole formed in the first clamp body, the threaded hole being configured to mate with threads of the power take-off of the external drive.

3. The clamp according to claim 1, wherein the detaching portion is a blind hole formed in the first clamp body, a clamping groove is formed in a side wall of the blind hole, the power output end of the external drive is used for extending into the blind hole, and a convex portion of the side wall of the power output end is clamped into the clamping groove in a matching manner to be fixed.

4. The clamp according to claim 1, wherein the detaching portion is a cylindrical boss with a threaded through hole at the center, the threaded through hole penetrates through bottom surfaces of two sides of the cylindrical boss, the bottom surface of the cylindrical boss and one side of the first clamp body, which is far away from the second clamp body, are fixedly arranged, and the threaded through hole is connected with a thread of a power output end of the external drive in a matching manner.

5. The clamp of claim 1, wherein the first clamp body includes a first fixing portion and first extension portions connected to both ends of the first fixing portion, respectively, the second clamp body includes a second fixing portion and second extension portions connected to both ends of the second fixing portion, respectively, the connection assembly includes a first connection hole provided on the first extension portion and a second connection hole provided on the second extension portion, respectively, and a connection member sequentially passing through the first connection hole and the second connection hole; the disassembling part is arranged on the first fixing part.

6. The clamp of claim 5, wherein the inner surface of the first securing portion and the inner surface of the second securing portion are each circumferentially provided with a groove, the first clamp body and the second clamp body are mated, and the grooves of the first securing portion and the second securing portion are in communication to form an annular groove.

7. The clamp of claim 6, wherein the grooves of the first and second securing portions are trapezoidal in cross-section.

8. Clamp according to claim 5, wherein the end surface of the first connection hole is plane and the end surface of the second connection hole is plane.

9. The clamp of claim 8, wherein the first attachment hole is a through hole, the second attachment hole is a threaded hole, and the attachment member is a screw threaded through the through hole to threadably engage the threaded hole; or, the first connecting hole and the second connecting hole are both the through holes, the connecting piece is a bolt and a nut which are matched with each other, and the bolt is fixedly connected through the nut after sequentially penetrating through the through holes.

10. A fracturing pump comprising a power end and a fluid end connected to each other, and a clamp according to any of claims 1 to 9, said clamp being clamped between said power end and said fluid end.