CN210195999U - Plunger location structure and fracturing pump - Google Patents
Plunger location structure and fracturing pump Download PDFInfo
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- CN210195999U CN210195999U CN201921210254.0U CN201921210254U CN210195999U CN 210195999 U CN210195999 U CN 210195999U CN 201921210254 U CN201921210254 U CN 201921210254U CN 210195999 U CN210195999 U CN 210195999U
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Abstract
The utility model provides a plunger location structure and fracturing pump relates to oil machinery technical field, the utility model provides a plunger location structure, include: the power piece, the movable piece and the guide piece; the guide piece is used for limiting the moving piece in a first direction, the moving piece is connected to the guide piece in a sliding mode along a second direction, and the first direction is perpendicular to the second direction; the power piece is connected with the movable piece and has a movable allowance along a first direction relative to the movable piece; the utility model provides a technical problem that plunger location structure easily worn and torn among the prior art has been alleviated to plunger location structure.
Description
Technical Field
The utility model belongs to the technical field of the oil machinery technique and specifically relates to a plunger location structure and fracturing pump are related to.
Background
The fracturing pump is provided with a power end and a liquid end, wherein the power end is used for transmitting the energy of a power system to the liquid end, and the liquid end is used for converting mechanical energy into hydraulic energy to realize liquid conveying. Referring to fig. 1, the fracturing pump includes: the driving rod 1 ', the driven plunger 2' and the guide sleeve 3 ', the driving rod 1' is in transmission connection with the power system, the guide sleeve 3 'is sleeved with the driven plunger 2', and the driven plunger 2 'is in transmission connection with the driving rod 1'. The driving rod 1 ' drives the driven plunger 2 ' to reciprocate along the axial direction of the guide sleeve 3 ', the guide sleeve 3 ' limits the driven plunger 2 ' in the radial direction, and therefore the guide sleeve 3 ' and the driven plunger 2 ' are coaxial. A groove hole is formed in one end, facing the driven plunger 2 ', of the driving rod 1', and a shaft end portion 21 'inserted into the groove hole is formed in the driven plunger 2', so that the front ends of the driving rod 1 'and the driven plunger 2' are positioned. During the process that the driving rod 1 'drives the driven plunger 2' to move, the driving rod 1 'has radial force on the driven plunger 2', thereby increasing the abrasion between the driven plunger 2 'and the guide sleeve 3'.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a plunger location structure and fracturing pump to alleviate the technical problem of the easy wearing and tearing of plunger location structure in the prior art.
In a first aspect, the utility model provides a plunger location structure, include: the power piece, the movable piece and the guide piece; the guide piece is used for limiting the movable piece in a first direction, the movable piece is connected to the guide piece in a sliding mode along a second direction, and the first direction is perpendicular to the second direction; the power piece is connected with the movable piece, and the power piece has a movement allowance along the first direction relative to the movable piece.
With reference to the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein an end surface of the power member opposite to the movable member abuts against the movable member; the power piece with the moving part is connected axial locating part respectively, axial locating part is used for limiting the power piece for the axial displacement of moving part.
With reference to the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein the axial limiting member includes a fixed sleeve, and an inner side wall of the fixed sleeve is provided with a limiting groove; the power piece is provided with a first limiting portion, the moving piece is provided with a second limiting portion, and the first limiting portion and the second limiting portion are inserted into the limiting groove.
With reference to the second possible implementation manner of the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein a first gap extending circumferentially around the power member is provided between the fixing sleeve and the power member, so that the power member has a movement margin in the first direction relative to the fixing sleeve; and/or a second gap extending around the circumferential direction of the movable piece is arranged between the fixed sleeve and the movable piece, so that the movable piece has a movement allowance relative to the fixed sleeve along the first direction.
In combination with the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein an anti-abrasion member is disposed between the guide member and the moving member.
In combination with the fourth possible implementation manner of the first aspect, the utility model provides a fifth possible implementation manner of the first aspect, wherein the guide member includes a first guide sleeve and a second guide sleeve, the first guide sleeve and the second guide sleeve are coaxial, and the first guide sleeve and the second guide sleeve are respectively sleeved with the movable member.
In combination with the fifth possible implementation manner of the first aspect, the present invention provides a sixth possible implementation manner of the first aspect, wherein a first wear-resistant ring is disposed between the first guide sleeve and the moving member.
With reference to the fifth possible implementation manner of the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein a second wear-resistant ring is disposed between the second guide sleeve and the movable member.
In combination with the first aspect, the present invention provides an eighth possible implementation manner of the first aspect, wherein the guide member deviates from one side of the power member is provided with a sealing member, and the sealing member is sleeved on the moving member.
In a second aspect, the present invention provides a fracturing pump equipped with the plunger positioning structure provided by the first aspect.
The embodiment of the utility model provides a following beneficial effect has been brought: adopt the guide piece to be used for the spacing moving part in the first direction, and the moving part along second direction sliding connection in guide piece, first direction perpendicular to second direction, the moving part is connected to the power piece, and the power piece has the mode along the activity allowance of first direction for the moving part, it is spacing to carry out the first direction to the moving part through the guide piece, and by power piece drive moving part along second direction reciprocating motion, the power piece has the activity allowance along the first direction for the moving part, thereby can alleviate because of the power piece produces the effort along the first direction to the moving part and lead to the technical problem of moving part eccentric wear guide piece, and then can reduce wearing and tearing and maintenance cost.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a drive rod, a driven plunger, and a guide sleeve of a fracturing pump of the prior art;
fig. 2 is a schematic view of a plunger positioning structure provided in an embodiment of the present invention;
fig. 3 is an enlarged schematic view of position a in fig. 2.
Icon: 1' -a driving lever; 2' -a slave plunger; 21' -an axial end; 3' -a guide sleeve; 1-a power member; 101-a first gap; 11-a first stop; 2-a movable part; 201-a second gap; 21-a second limiting part; 3-a guide; 31-a first guide sleeve; 32-a second guide sleeve; 4-an axial stop; 41-a limiting groove; 5-an anti-wear piece; 51-a first wear ring; 52-a second wear ring; 53-a third wear ring; 6-sealing element.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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.
As shown in fig. 1, the fracturing pump includes: the driving rod 1 ', the driven plunger 2' and the guide sleeve 3 ', the driving rod 1' is in transmission connection with the power system, the guide sleeve 3 'is sleeved with the driven plunger 2', and the driven plunger 2 'is in transmission connection with the driving rod 1'. The driving rod 1 ' drives the driven plunger 2 ' to reciprocate along the axial direction of the guide sleeve 3 ', the guide sleeve 3 ' limits the driven plunger 2 ' in the radial direction, and therefore the guide sleeve 3 ' and the driven plunger 2 ' are coaxial. The driving rod 1 'and the driven plunger 2' are positioned at the seam allowance, and in the process that the driving rod 1 'drives the driven plunger 2' to move, due to the fact that the coaxiality of the driving rod 1 'and the driven plunger 2' is deviated, the driving rod 1 'has radial acting force on the driven plunger 2', and therefore abrasion between the driven plunger 2 'and the guide sleeve 3' is increased. The reciprocating motion of the driven plunger 2 ' causes the eccentric wear damage of the guide sleeve 3 ' and the sealing component connected with the guide sleeve 3 ', thereby shortening the service life of the fracturing pump and increasing the maintenance cost.
Example one
As shown in fig. 2, the embodiment of the present invention provides a plunger positioning structure, including: the power element 1, the movable element 2 and the guide element 3; the guide element 3 is used for limiting the movable element 2 in a first direction, the movable element 2 is connected to the guide element 3 in a sliding manner along a second direction, and the first direction is perpendicular to the second direction; the power member 1 is connected with the movable member 2, and the power member 1 has a movement margin along the first direction relative to the movable member 2.
Specifically, the power member 1 is configured as a power link, and the power link is used for transmission connection with a power system; the movable member 2 is configured as a plunger, and the movable member 2 is connected to the power member 1, and the plunger is pushed and pulled by the power member 1 to reciprocate along the guide member 3. The first direction is the radial direction of the moving member 2, and the second direction is the axial direction of the moving member 2. Radial movement allowance is formed between the power piece 1 and the moving piece 2, so that the power piece 1 can move radially relative to the moving piece 2, radial acting force generated by the power piece 1 on the moving piece 2 can be avoided, friction force between the guide piece 3 and the moving piece 2 can be reduced, abrasion of the guide piece 3 is reduced, and the service life of the plunger positioning structure is prolonged.
In some embodiments, the power member 1 is fixedly connected with a first flange, the movable member 2 is connected with a second flange, a plurality of slots are formed in the first flange and the second flange, the plurality of slots are arranged at intervals along the circumferential direction of the movable member 2, and the slots extend along the radial direction of the movable member 2; the bolt penetrates through the slotted hole and is connected with the nut, so that the first flange plate and the second flange plate are connected. When the power member 1 moves radially relative to the movable member 2, the bolt slides in the slot hole along the radial direction of the movable member 2, so that the first flange plate moves radially relative to the second flange plate, and even if the coaxiality of the power member 1 and the movable member 2 is deviated, the power member 1 cannot generate radial acting force on the movable member 2. The power member 1 abuts against the movable member 2 to push the movable member 2 to move along the guide member 3, and the power member 1 pulls the bolt to pull the movable member 2 to move along the guide member 3, so that the movable member 2 is driven by the power member 1 to reciprocate.
As shown in fig. 2 and 3, in the embodiment of the present invention, the end surface of the power member 1 opposite to the movable member 2 abuts; the power element 1 and the movable element 2 are respectively connected with an axial limiting element 4, and the axial limiting element 4 is used for limiting the axial movement of the power element 1 relative to the movable element 2.
Specifically, the end face of the power element 1 opposite to the moving element 2 is a plane perpendicular to the axis of the moving element 2, and when the power element 1 moves towards the direction opposite to the moving element 2, the power element 1 can push the moving element 2 to move along the guide element 3; when the power element 1 moves radially relative to the moving element 2, a small friction force is generated between the opposite end surfaces of the power element 1 and the moving element 2, and the friction force has little influence on the pressure between the moving element 2 and the guide element 3, so that the friction force can be ignored. The seam allowance location between the power element 1 and the moving element 2 is removed, when the power element 1 deviates radially relative to the moving element 2, the moving element 2 bears the radial acting force from the power element 1 and only has smaller friction force, so the pressure between the moving element 2 and the guide element 3 is not increased, and the abrasion of the reciprocating motion of the moving element 2 to the guide element 3 can be reduced.
Further, the axial limiting piece 4 comprises a fixed sleeve, and a limiting groove 41 is formed in the inner side wall of the fixed sleeve; the power member 1 is provided with a first limiting portion 11, the moving member 2 is provided with a second limiting portion 21, and the first limiting portion 11 and the second limiting portion 21 are inserted into the limiting groove 41.
Specifically, fixed cover includes first concatenation body and second concatenation body, and the cross sectional shape of the first concatenation body and the cross sectional shape of the second concatenation body are the semicircle ring, and the first concatenation body splices the body coupling with the second to form the cross-section and be annular fixed cover. The inside wall of fixed cover is equipped with spacing groove 41, and spacing groove 41 extends along the circumference of fixed cover. The first limiting part 11 is configured as a first convex ring coaxial with the power member 1, or the first limiting part 11 is configured as a plurality of first limiting blocks arranged at intervals along the circumferential direction of the power member 1; the second limiting portion 21 is configured as a second convex ring coaxial with the moving member 2, or the second limiting portion 21 is configured as a plurality of second limiting blocks arranged at intervals along the circumferential direction of the moving member 2. When assembling power component 1 and moving part 2, earlier with the relative terminal surface butt of power component 1 and moving part 2, reuse fixed cover establish the junction of first concatenation body and second concatenation body to make first spacing portion 11 and the spacing portion 21 of second all insert and locate the spacing groove 41, the lateral wall of spacing groove 41 can prevent first spacing portion 11 to deviate from the spacing portion 21 of second and remove, and then realize spacing the axial of power component 1 for moving part 2.
Further, the width dimension of the axial limiting groove 41 along the fixing sleeve decreases progressively from one end close to the axis of the fixing sleeve to one end deviating from the axis of the fixing sleeve, the first splicing body is connected with the second splicing body through a bolt, the bolt axis is perpendicular to the end face of the first splicing body opposite to the second splicing body, the distance between the first splicing body and the second splicing body is reduced, the first limiting part 11 and the second limiting part 21 are gradually inserted into the limiting groove 41, and the distance between the power part 1 and the moving part 2 is reduced under the extrusion action of the inner side wall of the limiting groove 41. The radial dimension that spacing groove 41 deviates from the one end correspondence of fixed cover axis is greater than the external diameter of first spacing portion 11, and the radial dimension that spacing groove 41 deviates from the one end correspondence of fixed cover axis is greater than the external diameter of spacing portion 21 of second to ensure that first spacing portion 11 has radial allowance of movement in spacing groove 41, spacing portion 21 of second has radial allowance of movement in spacing groove 41.
Further, a first gap 101 extending around the circumference of the power member 1 is formed between the fixing sleeve and the power member 1, so that the power member 1 has a moving allowance in the first direction relative to the fixing sleeve; and/or a second gap 201 extending around the circumference of the moving part 2 is provided between the fixed sleeve and the moving part 2, so that the moving part 2 has a moving allowance relative to the fixed sleeve along the first direction.
Specifically, a first gap 101 is formed between the fixed sleeve and the power element 1, the first gap 101 circumferentially surrounds the power element 1, when the power element 1 radially deviates relative to the moving element 2, the power element 1 radially moves relative to the fixed sleeve, and under the condition, the fixed sleeve can be radially fixed with the moving element 2; or, a second gap 201 is formed between the fixed sleeve and the moving element 2, the second gap 201 circumferentially surrounds the moving element 2, and when the power element 1 radially deviates relative to the moving element 2, the power element 1 drives the fixed sleeve to radially move relative to the moving element 2, under which condition the fixed sleeve can be radially fixed with the power element 1. In addition, a first gap 101 is formed between the fixed sleeve and the power element 1, and a second gap 201 is formed between the fixed sleeve and the movable element 2, when the power element 1 radially deviates relative to the movable element 2, radial movement margins generated by the first gap 101 and the second gap 201 are overlapped, and further the radial movement margin of the power element 1 relative to the movable element 2 is increased.
Furthermore, an anti-wear member 5 is arranged between the guide member 3 and the movable member 2. The guide member 3 may be configured as a slide rail, and the movable member 2 is connected to a slider adapted to the slide rail, so that the movable member 2 can slide along the slide rail. In this embodiment, the guiding element 3 is configured as a sleeve body, the sleeve body is provided with a guiding through hole for sleeving the movable element 2, and the movable element 2 can slide back and forth along the guiding through hole.
In some embodiments, the wear-proof member 5 is configured as a bushing inserted into the sleeve body, and the bushing is sleeved on the movable member 2, and the movable member 2 reciprocates to wear the bushing, so that maintenance can be performed only by replacing the bushing.
In this embodiment, the inner side wall of the sleeve body is provided with an annular groove, the wear-resistant member 5 is configured as a wear-resistant ring, and the wear-resistant ring is inserted into the annular groove. The inner diameter of the wear-resistant ring is smaller than that of the sleeve body, so that the moving part 2 and the wear-resistant ring generate friction in the reciprocating sliding process of the moving part 2, and the inner wall of the sleeve body is prevented from being worn by the wear-resistant ring.
Further, the guide member 3 includes a first guide sleeve 31 and a second guide sleeve 32, the first guide sleeve 31 and the second guide sleeve 32 are coaxial, and the first guide sleeve 31 and the second guide sleeve 32 are respectively sleeved on the movable member 2. Wherein, first uide bushing 31 and second uide bushing 32 are connected with the organism of fracturing pump respectively, carry out radial spacing through first uide bushing 31 and second uide bushing 32 to moving part 2 to ensure that moving part 2, first uide bushing 31 and second uide bushing 32 are coaxial, and moving part 2 can be followed the axial and reciprocated sliding.
Further, a first wear-resistant ring 51 is arranged between the first guide sleeve 31 and the movable member 2; the first guide sleeve 31 is sleeved with a first wear-resistant ring 51, and the first wear-resistant ring 51 is sleeved with the movable member 2. The inner side wall of the first guide sleeve 31 is provided with a first annular groove, the first wear-resistant ring 51 is inserted into the first annular groove, and the movable member 2 is sleeved with the first wear-resistant ring 51. In addition, the inner side wall of the first guide sleeve 31 is further provided with a third annular groove, the third wear-resistant ring 53 is inserted into the third annular groove, and the movable member 2 is sleeved with the third wear-resistant ring 53. A second wear-resistant ring 52 is arranged between the second guide sleeve 32 and the movable piece 2; the second guide sleeve 32 is sleeved with a second wear-resistant ring 52, and the second wear-resistant ring 52 is sleeved with the movable member 2. The first wear-resistant ring 51, the second wear-resistant ring 52, the third wear-resistant ring 53 and the movable element 2 are coaxial, and the movable element 2 is limited radially through the first wear-resistant ring 51, the second wear-resistant ring 52 and the third wear-resistant ring 53.
Further, one side of the guide element 3, which is far away from the power element 1, is abutted to the sealing element 6, and the movable element 2 is sleeved with the sealing element 6. Wherein, guide 3 has radial limiting displacement to moving part 2 to make moving part 2 deviate from the radial skew of one end of power piece 1 less, and then lie in that guide 3 deviates from the eccentric wear that the sealing member 6 of power piece 1 one side received moving part 2 less, be favorable to reducing the wearing and tearing of sealing member 6.
Example two
As shown in fig. 2, the fracturing pump provided by the embodiment of the present invention is provided with the plunger positioning structure provided by the first embodiment. The power member 1 is configured as a power link, the moving member 2 is configured as a plunger, the power link is in transmission connection with the power system and drives the moving member 2 to reciprocate along the guide member 3, and the technical effect of the fracturing pump is the same as that of the plunger positioning structure provided in the first embodiment, and therefore, the technical effect is not repeated herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A plunger positioning structure, comprising: the power piece (1), the moving piece (2) and the guide piece (3);
the guide piece (3) is used for limiting the movable piece (2) in a first direction, the movable piece (2) is connected to the guide piece (3) in a sliding mode in a second direction, and the first direction is perpendicular to the second direction;
the power piece (1) is connected with the movable piece (2), and the power piece (1) has a movement allowance along the first direction relative to the movable piece (2).
2. Plunger positioning structure according to claim 1, characterised in that the power element (1) abuts against the end face opposite to the moving element (2);
the power piece (1) and the moving piece (2) are respectively connected with an axial limiting piece (4), and the axial limiting piece (4) is used for limiting the axial movement of the power piece (1) relative to the moving piece (2).
3. The plunger positioning structure according to claim 2, wherein the axial stop (4) comprises a retaining sleeve, the inner side wall of which is provided with a stop groove (41);
the power piece (1) is provided with a first limiting portion (11), the moving piece (2) is provided with a second limiting portion (21), and the first limiting portion (11) and the second limiting portion (21) are inserted into the limiting groove (41).
4. A plunger positioning structure according to claim 3, characterized in that there is a first gap (101) between the harness and the power member (1) extending circumferentially around the power member (1) to allow a play of the power member (1) in the first direction with respect to the harness;
and/or a second gap (201) extending around the circumferential direction of the movable piece (2) is arranged between the fixed sleeve and the movable piece (2) so that the movable piece (2) has a movable allowance relative to the fixed sleeve along the first direction.
5. Plunger positioning structure according to claim 1, characterised in that an anti-wear element (5) is provided between the guide element (3) and the movable element (2).
6. The plunger positioning structure according to claim 5, characterized in that the guide member (3) comprises a first guide sleeve (31) and a second guide sleeve (32), the first guide sleeve (31) and the second guide sleeve (32) are coaxial, and the first guide sleeve (31) and the second guide sleeve (32) are respectively sleeved on the movable member (2).
7. The plunger positioning structure according to claim 6, characterized in that a first wear ring (51) is provided between the first guide sleeve (31) and the movable member (2).
8. The plunger positioning structure according to claim 6, characterized in that a second wear ring (52) is provided between the second guide sleeve (32) and the movable member (2).
9. Plunger positioning structure according to claim 1, characterized in that a sealing element (6) is arranged on the side of the guiding element (3) facing away from the power element (1), said sealing element (6) being arranged around the movable element (2).
10. A fracturing pump, characterized in that it is provided with a plunger positioning structure according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921210254.0U CN210195999U (en) | 2019-07-29 | 2019-07-29 | Plunger location structure and fracturing pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921210254.0U CN210195999U (en) | 2019-07-29 | 2019-07-29 | Plunger location structure and fracturing pump |
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| CN210195999U true CN210195999U (en) | 2020-03-27 |
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| CN201921210254.0U Active CN210195999U (en) | 2019-07-29 | 2019-07-29 | Plunger location structure and fracturing pump |
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| CN (1) | CN210195999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604449A (en) * | 2020-04-30 | 2020-09-01 | 徐云涛 | Forging forming method for cutting tooth with reinforcing rib |
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2019
- 2019-07-29 CN CN201921210254.0U patent/CN210195999U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604449A (en) * | 2020-04-30 | 2020-09-01 | 徐云涛 | Forging forming method for cutting tooth with reinforcing rib |
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