Novel spring support structure for fracturing pump

Abstract

The utility model relates to the technical field of petroleum and natural gas drilling equipment and engineering, in particular to a novel spring support structure for a fracturing pump, which comprises a pump head body, an inner cavity is arranged on the pump head body, a spring support is mounted in the inner cavity, a support pin groove is arranged on the spring support, and a support pin is mounted in the support pin groove. One end of the support pin is fixedly connected into the support pin groove, the other end of the support pin extends to the outer side of the spring support along the support pin groove, a pin used for fixing the support pin penetrates through the support pin, compared with a traditional spring support, a common claw-shaped structure is omitted, the support pin groove is formed, and therefore the size of a blank is reduced, the machining difficulty is lowered, and the machining cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum and natural gas drilling equipment and engineering technical field especially relates to a new type spring support structure for fracturing pump. BACKGROUND

[0002] The fracturing pump mainly refers to the reciprocating pump for injecting fracturing fluid to the oilfield production system, and the spring support for the fracturing pump has multiple functions such as energy conversion and transmission, pressure control and smooth flow, vibration and noise reduction and equipment protection, and fixation and support, which together ensure the smooth operation of the fracturing operation and the safe and stable operation of the equipment.

[0003] The commonly used spring support of the small fracturing pump is subjected to the upward thrust generated by the spring expansion and the lateral thrust generated by the plunger movement, is longitudinally constrained through the lateral slot in the pump head body cavity, and is circumferentially rotated and axially moved forward and backward by the claw-shaped structure protruding from the front end and constrained by the suction gland. The spring support structure of this structure is relatively complex, has a large processing difficulty, and is prone to cause the wear of the suction gland.

[0004] Therefore, it is necessary to provide a new type spring support structure for the fracturing pump to overcome the defects of the complex structure and large processing difficulty of the existing spring support structure for the fracturing pump. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problems of the complex structure and large processing difficulty of the existing spring support structure for the fracturing pump, and provides a new type spring support structure for the fracturing pump.

[0006] The technical scheme of the utility model is:

[0007] A new type spring support structure for the fracturing pump comprises a pump head body, an inner cavity is formed in the pump head body, a spring support is installed in the inner cavity, a support pin slot is formed in the spring support, a support pin is installed in the support pin slot, one end of the support pin is fixedly connected in the support pin slot, the other end of the support pin extends to the outer side of the spring support along the support pin slot, and a pin for fixing the support pin is penetrated through the support pin.

[0008] Further, a lateral slot for placing the spring support is formed in the side surface of the inner cavity.

[0009] Further, a vertical slot is formed in one side of the lateral slot, and the support pin extending to the outer side of the spring support is installed in the vertical slot.

[0010] Further, the inner cavity comprises a horizontal cavity and a vertical cavity which are cross-penetrated in a cross type, the suction gland is arranged at one end of the horizontal cavity, the plunger is arranged at the other end of the horizontal cavity, and the spring support is arranged in the vertical cavity.

[0011] Further, the spring support does not contact the suction gland.

[0012] Further, the bracket pin slot is an open groove at one end.

[0013] Further, the pin includes a first pin at the fixed end of the bracket pin and the bracket pin slot, and a second pin at the middle of the bracket pin.

[0014] Further, both ends of the pin penetrate the spring bracket.

[0015] Further, the overall shape of the spring bracket is arc-shaped.

[0016] The novel spring bracket structure for fracturing pump of the utility model installs the spring bracket in the inner cavity of the pump head body, because the bracket pin slot is arranged on the spring bracket, the bracket pin is installed in the bracket pin slot, one end of the bracket pin is fixedly connected in the bracket pin slot, the other end of the bracket pin extends to the outside of the spring bracket along the bracket pin slot, and the pin is arranged to fix the bracket pin on the spring bracket, so that the claw-shaped structure of the general spring bracket is saved, the blank area of the spring bracket is reduced by arranging the bracket pin slot, the processing cost is lower, compared with the traditional one, the general claw-shaped structure of the spring bracket is saved, the bracket pin slot is arranged, so that the blank volume is reduced, the processing difficulty is reduced, and the processing cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the spring bracket of the utility model;

[0018] Figure 2 It is a sectional view of the pump head body of the fracturing pump of the utility model;

[0019] Figure 3 It is a local enlarged view of A in the utility model; Figure 2

[0020] Reference signs: 1, pump head body; 2, inner cavity; 3, spring bracket; 4, bracket pin slot; 5, bracket pin; 6, pin; 7, vertical slot; 8, horizontal slot; 9, suction cover; 10, plunger. DETAILED DESCRIPTION

[0021] In order to make the technical means, technical features, utility model purposes and technical effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0022] Example one:

[0023] For example Figure 1 and Figure 2 ​As shown, the embodiment provides a new spring support structure for fracturing pump, which comprises a pump head body 1, the pump head body 1 is provided with an inner cavity 2, a spring support 3 is installed in the inner cavity 2, the overall shape of the spring support 3 is arc-shaped, the arc-shaped spring support 3 can effectively disperse stress and reduce the risk of damage of the spring support 3 caused by stress concentration. The spring support 3 is provided with a support pin slot 4, a support pin 5 is installed in the support pin slot 4, one end of the support pin 5 is fixedly connected in the support pin slot 4, the other end of the support pin 5 extends to the outside of the spring support 3 along the support pin slot 4, and a pin 6 for fixing the support pin 5 is penetrated through the support pin 5. The pawl-shaped structure of the traditional spring support 3 is replaced by installing the support pin 5 through the support pin slot 4, so that the blank area of the spring support 3 is reduced and the processing cost is lower; and the support pin 5 is fixed on the spring support 3 through the pin 6, the two ends of the pin 6 penetrate the spring support 3, so that the support pin 5 can be detachably installed in the support pin slot 4, and the later disassembly and maintenance are facilitated.

[0024] As shown in the drawings, Figure 2 The inner cavity 2 comprises a horizontal cavity and a vertical cavity which are penetrated through each other, one end of the horizontal cavity is provided with a suction gland 9, the other end of the horizontal cavity is provided with a plunger 10, the spring support 3 is located in the vertical cavity, and the spring support 3 does not contact the suction gland 9 and does not cause abrasion to the suction gland 9.

[0025] As shown in the drawings, Figure 3 The side of the inner cavity 2 is provided with a horizontal groove 8 for placing the spring support 3, the horizontal groove 8 is used for placing the spring support 3 to constrain the longitudinal movement of the spring support 3 caused by the spring thrust. One side of the horizontal groove 8 is provided with a vertical groove 7, and the support pin 5 extending to the outside of the spring support 3 is installed in the vertical groove 7 through a screw. The spring support 3 is limited by the vertical groove 7 to prevent the overall rotation of the spring support 3, and the abrasion of the suction gland 9 caused by the constraint of the spring support 3 by the suction gland 9 is avoided, and the service life of the suction gland 9 is improved.

[0026] As shown in the drawings, Figure 1 The support pin slot 4 is a groove with an open end. The support pin 5 can extend out of the open end of the support pin slot 4 and protrude outside the spring support 3, so as to facilitate the fixation of the whole spring support 3. The pin 6 comprises a first pin and a second pin, the first pin is located at the fixed end of the support pin 5 and the support pin slot 4, and the second pin is located at the middle part of the support pin 5. The first pin and the second pin simultaneously fix the support pin 5 in the support pin slot 4, which can avoid the rotation of the support pin 5 relative to the spring support 3 and affect the normal use of the spring support 3.

[0027] To sum up, only the preferred embodiments of the present application are described above, which are not used to limit the implementation range of the present application. Any equivalent changes and modifications made according to the content of the patent application of the present application shall belong to the technical scope of the present application.

Claims

1. A novel spring support structure for a fracturing pump, comprising a pump head body (1), an inner cavity (2) formed on the pump head body (1), and a spring support (3) installed within the inner cavity (2), characterized in that: The spring bracket (3) has a bracket pin groove (4), a bracket pin (5) is installed in the bracket pin groove (4), one end of the bracket pin (5) is fixedly connected in the bracket pin groove (4), and the other end of the bracket pin (5) extends along the bracket pin groove (4) to the outside of the spring bracket (3). A pin (6) for fixing it passes through the bracket pin (5).

2. The novel spring support structure for fracturing pumps according to claim 1, characterized in that: The inner cavity (2) has a transverse groove (8) on its side for placing the spring bracket (3).

3. The novel spring support structure for fracturing pumps according to claim 2, characterized in that: A vertical groove (7) is provided on one side of the horizontal groove (8), and a bracket pin (5) extending to the outside of the spring bracket (3) is installed in the vertical groove (7).

4. The novel spring support structure for fracturing pumps according to claim 1, characterized in that: The inner cavity (2) includes a horizontal cavity and a vertical cavity that are cross-shaped and interpenetrating each other. One end of the horizontal cavity is provided with a suction cap (9), and the other end of the horizontal cavity is provided with a plunger (10). The spring bracket (3) is located in the vertical cavity.

5. The novel spring support structure for fracturing pumps according to claim 4, characterized in that: The spring support (3) does not contact the suction cap (9).

6. The novel spring support structure for fracturing pumps according to claim 1, characterized in that: The bracket pin groove (4) is a groove with one end open.

7. The novel spring support structure for fracturing pumps according to claim 1, characterized in that: The pin (6) includes a first pin and a second pin. The first pin is located at the fixed end of the bracket pin (5) and the bracket pin groove (4), and the second pin is located in the middle of the bracket pin (5).

8. The novel spring support structure for fracturing pumps according to claim 1, characterized in that: Both ends of the pin (6) penetrate the spring bracket (3).

9. The novel spring support structure for fracturing pumps according to claim 1, characterized in that: The overall shape of the spring bracket (3) is arc-shaped.

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