A gearbox power system device applied to oilfield fracturing work

Abstract

The utility model relates to the field of oilfield fracturing technology, specifically disclose a gearbox power system device for oilfield fracturing work, including gearbox body, its below setting only positioning chassis, the positioning chassis upper surface is provided with the recess, and the inner wall of positioning chassis recess is provided with the support sliding block, the upper surface of support sliding block is provided with 2 damping cavities, the inner wall of damping cavity is installed with the damping sliding block, the damping sliding block upper surface is fixedly connected with the positioning connecting rod. The gearbox power system device for oilfield fracturing work, compared with the limitation that traditional rubber pad can only resist longitudinal vibration, the device forms the longitudinal damping structure through the damping cavity, the damping sliding block, and is matched with the support sliding block side spring, the lateral buffering mechanism to form the transverse buffering system, can offset the longitudinal impact and transverse vibration in oilfield fracturing operation simultaneously, avoids the precision parts in the gearbox inside to be damaged because of vibration.

Description

Technical Field

[0001] This utility model relates to the field of oilfield fracturing technology, specifically to a gearbox power system device applied to oilfield fracturing operations. Background Technology

[0002] Hydraulic fracturing, also known as oilfield fracturing, is a core production enhancement technology for developing low-permeability oil and gas reservoirs. Its principle involves injecting high-pressure, high-viscosity fracturing fluid into the underground oil and gas layer, creating artificial fractures in the rock. These fractures can range in length from tens to hundreds of meters and in width from a few millimeters. Proppants such as silica sand and ceramsite are then used to fill the fractures, forming a long-term, stable fluid channel. This significantly reduces the resistance to oil and gas flowing from the rock pores to the wellbore, thus enabling economical exploitation of low- or non-producing wells. The gearbox used in oilfield fracturing is the "power transmission hub" of the core power equipment in fracturing operations. Its core function is to "regulate the speed" and "amplify the torque" of the engine output, precisely matching the stringent requirements of fracturing equipment for "high torque and a wide speed range." This ensures stable pressure output from the high-pressure pump unit and uniform mixing of fracturing fluid and proppant by the sand mixing truck during fracturing operations.

[0003] Due to the extreme environment of oilfield fracturing operations, and the fact that the equipment has much higher requirements for the "reliability, impact resistance, and load adaptability" of power transmission than in ordinary industrial scenarios, existing gearboxes mainly use rubber pad-type shock absorbers. However, shock absorbers can only resist longitudinal vibrations, not lateral vibrations, and they are in direct contact with the surrounding environment, which can easily cause corrosion damage. Utility Model Content

[0004] The purpose of this utility model is to provide a gearbox power system device for oilfield fracturing operations, in order to solve the problems mentioned in the background art, which mainly use rubber pad-type shock absorbers. However, the shock absorbers can only resist longitudinal vibrations and cannot resist lateral vibrations. Furthermore, the shock absorbers are in direct contact with the surrounding environment, which can easily cause corrosion and damage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gearbox power system device for oilfield fracturing operations, comprising a gearbox body with a positioning base frame below it. The upper surface of the positioning base frame has a groove, and the inner wall of the groove is provided with a support slider. The upper surface of the support slider frame has two damping cavities, and the inner wall of the damping cavities is fitted with damping sliders. A positioning connecting rod is fixedly connected to the upper surface of the damping slider. A sealing cover plate is provided on the upper surface of the support slider. A fluid guiding groove is provided on the inner wall of the support slider. A damping through hole is provided on the surface of the damping slider. Side limiting grooves are provided on the inner walls of both sides of the positioning base frame. Linkage sliders are fixedly connected to both sides of the positioning base frame. A guide block is fixedly connected to the outer surface of the linkage slider. A lateral buffer mechanism is provided on the bottom surface of the side limiting groove.

[0006] Preferably, the bottom surface of the support slider is provided with rollers, and the support slider is slidably connected to the positioning base frame, and the damping cavity is slidably connected to the damping slider.

[0007] By adopting the above technical solution, the roller at the bottom of the support slider is connected to the positioning base in a sliding manner, which can convert the sliding friction between the support slider and the positioning base into rolling friction, greatly reducing the frictional resistance when the two move relative to each other. When the gearbox is displaced by lateral vibration, it can reduce the wear of the support slider and the positioning base, extend the service life of the components, and at the same time ensure smoother lateral buffering action and avoid buffering failure due to excessive frictional resistance.

[0008] Preferably, the positioning link and the support slider are slidably connected, the upper ends of the two positioning links are fixedly connected to the gearbox body, and the fluid guide groove is connected to the damping cavity.

[0009] The above technical solution uses a positioning link with the upper end fixed to the gearbox body and the lower end slidably connected to the support slider. On the one hand, the sliding characteristics can provide a buffer space for the longitudinal displacement of the gearbox, avoiding the direct transmission of vibration caused by rigid connection. On the other hand, the symmetrical fixing structure of the double positioning link can accurately position the gearbox, preventing it from shifting or tilting during lateral or longitudinal movement, ensuring that the transmission shaft of the gearbox is aligned with the transmission shaft of other power components, and avoiding the reduction in transmission efficiency or component wear caused by misalignment.

[0010] Preferably, the inward opening width of the damping through hole gradually decreases at both ends, the side limiting groove and the guide block form a sliding connection, the linkage slider and the positioning base form a sliding connection, and a spring is connected between the side surface of the support slider and the positioning base.

[0011] Using the above technical solution, the linkage slider is slidably connected to the positioning base. The linkage slider is a key component for the transmission of lateral vibration. Its sliding cooperation with the positioning base can realize the transmission and dispersion of lateral force. When the gearbox is subjected to lateral vibration, the linkage slider drives the guide block to slide along the positioning base, thereby triggering the lateral buffer mechanism to form a complete lateral buffer link, preventing the vibration from being directly transmitted to the positioning base and the ground foundation.

[0012] Preferably, the lateral buffer mechanism includes a linkage column, which is fixedly connected to the lower surface of the guide block. A compression block is fixedly connected to the lower end of the linkage column. Two deceleration sliders are installed on the bottom surface of the side limiting groove, and a deceleration friction block is fixed on the upper surface of the deceleration slider.

[0013] Using the above technical solution, when the squeezing block slides with the linkage column, it will push the two deceleration sliders on both sides to move outward, so that the deceleration friction block contacts the inner wall of the side limit groove. The lateral vibration energy is dissipated through friction, forming a "contact friction buffer" to make up for the inadequacy of the spring buffer. It is suitable for medium and high intensity lateral vibration.

[0014] Preferably, both the linkage column and the compression block are slidably connected to the side limiting groove, and both sides of the compression block are arc-shaped.

[0015] By adopting the above technical solution, the arc-shaped surface can transform the "rigid collision" between the extrusion block and the deceleration slider into "smooth contact", reducing the impact wear when the two are in contact and extending the service life of the components. At the same time, the arc-shaped structure can make the extrusion block push the deceleration slider more smoothly, avoid jamming, and ensure continuous and stable buffering action.

[0016] Preferably, the deceleration slider and the side limiting groove are slidably connected, and a spring is connected between the deceleration slider and the side limiting groove. The lower side surface of the deceleration slider is inclined, and the two deceleration sliders are located on both sides of the guide block.

[0017] By adopting the above technical solution, the inclined surface can form a "complementary fit" with the arc-shaped surface of the extrusion block, reducing the resistance when the two come into contact, making the extrusion block push the deceleration slider more smoothly, while avoiding stress concentration caused by right-angle contact and reducing the risk of component damage.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the gearbox power system device applied to oilfield fracturing operations:

[0019] 1. Compared with the limitations of traditional rubber pads that can only resist longitudinal vibration, this device forms a transverse buffer system through a longitudinal damping structure consisting of a damping cavity and a damping slider, combined with a spring on the side of the supporting slider and a lateral buffer mechanism. It can simultaneously offset the longitudinal impact and transverse vibration in oilfield fracturing operations, prevent the precision components inside the gearbox from being damaged by vibration, and meet the requirement of "high impact resistance".

[0020] 2. The device uses a positioning base to encase the core shock-absorbing components, preventing them from direct contact with the external corrosive environment. At the same time, the support slider bottom rollers convert sliding friction into rolling friction, and the deceleration slider spring reset design reduces rigid collisions of components, significantly reducing wear and improving the overall durability of the device.

[0021] 3. The dual positioning linkage ensures that the gearbox body and other power components are aligned on the axis. The damping through-hole throttling effect stabilizes the damping effect. The bidirectional friction buffer of the lateral buffer mechanism prevents gearbox deviation. It can always maintain the accuracy of "speed regulation" and "torque amplification", ensuring stable pressure of the fracturing pump group and uniform fluid supply of the sand mixing truck, thereby improving mining efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the connection between the positioning base and the supporting slider of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the support slider and the positioning link of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the connection between the linkage slider and the guide block of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the damping slider and the positioning link of this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the damping slider and the damping through hole of this utility model;

[0027] Figure 6 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. Gearbox body; 2. Positioning base; 3. Support slider; 4. Damping cavity; 5. Damping slider; 6. Positioning link; 7. Sealing cover; 8. Fluid guide groove; 9. Damping through hole; 10. Side limiting groove; 11. Linkage slider; 12. Guide block; 13. Linkage column; 14. Extrusion block; 15. Deceleration slider; 16. Deceleration friction block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a gearbox power system device applied to oilfield fracturing operations, including a gearbox body 1, a positioning base 2, a support slider 3, a damping cavity 4, a damping slider 5, a positioning connecting rod 6, a sealing cover 7, a fluid guiding groove 8, a damping through hole 9, a side limiting groove 10, a linkage slider 11, a guide block 12, a linkage column 13, a squeezing block 14, a deceleration slider 15, and a deceleration friction block 16. The gearbox body 1 has only the positioning base 2 below it. The upper surface of the positioning base 2 has a groove, and the positioning base... The inner wall of the groove of the frame 2 is provided with a support slider 3, and the bottom surface of the support slider 3 is provided with a roller. The support slider 3 and the positioning base frame 2 are slidably connected. The damping cavity 4 and the damping slider 5 are slidably connected. When the gearbox body 1 is subjected to longitudinal vibration, the positioning connecting rod 6 is fixedly connected to drive the damping slider 5 to slide in the damping cavity 4. The damping medium flows through the damping through hole 9. Due to the tapered design at both ends of the through hole, throttling resistance is generated, which dissipates the vibration energy. At the same time, the liquid guide groove 8 realizes the circulation of the damping medium, ensuring that the damping effect is continuous and stable, and offsetting the longitudinal impact.

[0031] Two damping cavities 4 are formed on the upper surface of the support slider 3. A damping slider 5 is installed on the inner wall of the damping cavity 4. A positioning connecting rod 6 is fixedly connected to the upper surface of the damping slider 5. A sealing cover plate 7 is provided on the upper surface of the support slider 3. A fluid guiding groove 8 is formed on the inner wall of the support slider 3. A damping through hole 9 is formed on the surface of the damping slider 5. The positioning connecting rod 6 and the support slider 3 are slidably connected. The upper ends of the two positioning connecting rods 6 are fixedly connected to the gearbox body 1. The fluid guiding groove 8 is connected to the damping cavity 4. The opening width of the damping through hole 9 gradually decreases inward at both ends. The side limiting groove 10 and the guide block 12 are slidably connected. The linkage slider 11 and the positioning base 2 are slidably connected. A spring is connected between the side surface of the support slider 3 and the positioning base 2. When the gearbox body 1 is subjected to lateral vibration, it drives the support slider 3 to slide along the positioning base 2. The spring connected to the side of the support slider 3 is stretched or compressed. Through elastic deformation, it absorbs part of the lateral vibration energy, achieves preliminary buffering, and avoids the vibration from being directly transmitted to the positioning base 2.

[0032] The inner walls on both sides of the positioning base 2 are provided with side limiting grooves 10. The two sides of the positioning base 2 are fixedly connected with linkage sliders 11. The outer surface of the linkage sliders 11 is fixedly connected with guide blocks 12. The lateral buffer mechanism includes a linkage column 13, which is fixedly connected to the lower surface of the guide blocks 12. The lower end of the linkage column 13 is fixedly connected with a pressing block 14. Two deceleration sliders 15 are installed on the bottom surface of the side limiting groove 10. The upper surface of the deceleration sliders 15 is fixed with deceleration friction blocks 16. Lateral vibration drives the linkage sliders 11 to slide synchronously, causing the guide blocks 12 to move along the side limiting groove 10. Then, the linkage column 13 pushes the pressing block 14. The arc-shaped side of the pressing block 14 pushes the two deceleration sliders 15, so that the deceleration friction blocks 16 on them contact the inner wall of the side limiting groove 10. The remaining lateral vibration energy is further dissipated by friction, thus completing the deep buffer.

[0033] The bottom surface of the side limiting groove 10 is provided with a lateral buffer mechanism. The linkage column 13 and the pressing block 14 are both slidably connected to the side limiting groove 10. Both sides of the pressing block 14 are arc-shaped. The deceleration slider 15 is slidably connected to the side limiting groove 10, and a spring is connected between the deceleration slider 15 and the side limiting groove 10. The lower side surface of the deceleration slider 15 is inclined. The two deceleration sliders 15 are located on both sides of the guide block 12. After the vibration disappears, the spring on the side of the support slider 3 and the spring on the side of the deceleration slider 15 respectively drive the support slider 3 and the deceleration slider 15 to reset. The sliding guiding action of the positioning link 6 and the guide block 12 makes the gearbox body 1 return to the initial working position, ensuring the accuracy of subsequent power transmission.

[0034] Working principle: When using this gearbox power system device applied to oilfield fracturing operations, during longitudinal vibration, the gearbox body 1 drives the damping slider 5 to slide in the damping cavity 4 via the positioning link 6. The damping medium is throttled and dissipates energy through the gradually narrowing damping through hole 9, and the fluid guide groove 8 ensures the circulation of the medium. During lateral vibration, the springs on the side of the support slider 3 provide initial buffering, and then the linkage slider 11 and guide block 12 drive the linkage column 13, causing the squeezing block 14 to push the deceleration slider 15. The friction between the deceleration friction block 16 and the side limiting groove 10 dissipates energy. After the vibration disappears, each spring drives the support slider 3 and deceleration slider 15 to reset. The positioning link 6 and guide block 12 ensure that the gearbox 1 returns to its original position, increasing the overall practicality.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gearbox power system device for use in oilfield fracturing operations, comprising a gearbox body (1), with a positioning base (2) disposed below it, the upper surface of the positioning base (2) having a groove, and the inner wall of the groove of the positioning base (2) having a support slider (3), characterized in that: The upper surface of the support slider (3) is provided with two damping cavities (4), the inner wall of the damping cavity (4) is equipped with a damping slider (5), the upper surface of the damping slider (5) is fixedly connected with a positioning connecting rod (6), the upper surface of the support slider (3) is provided with a sealing cover plate (7), the inner wall of the support slider (3) is provided with a liquid guiding groove (8), the surface of the damping slider (5) is provided with a damping through hole (9), the inner walls on both sides of the positioning base (2) are provided with side limiting grooves (10), the two sides of the positioning base (2) are fixedly connected with a linkage slider (11), the outer surface of the linkage slider (11) is fixedly connected with a guide block (12), and the bottom surface of the side limiting groove (10) is provided with a lateral buffer mechanism.

2. The gearbox power system device for oilfield fracturing operations according to claim 1, characterized in that: The bottom surface of the support slider (3) is provided with rollers, and the support slider (3) and the positioning base (2) are slidably connected. The damping cavity (4) and the damping slider (5) are slidably connected.

3. The gearbox power system device for oilfield fracturing operations according to claim 1, characterized in that: The positioning link (6) and the support slider (3) are slidably connected. The upper ends of the two positioning links (6) are fixedly connected to the gearbox body (1). The fluid guide groove (8) is connected to the damping cavity (4).

4. The gearbox power system device for oilfield fracturing operations according to claim 1, characterized in that: The opening width of the damping through hole (9) gradually decreases inward at both ends. The side limiting groove (10) and the guide block (12) are slidably connected. The linkage slider (11) and the positioning base (2) are slidably connected. A spring is connected between the side surface of the support slider (3) and the positioning base (2).

5. A gearbox power system device for oilfield fracturing operations according to claim 1, characterized in that: The lateral buffer mechanism includes a linkage column (13), which is fixedly connected to the lower surface of the guide block (12). A pressing block (14) is fixedly connected to the lower end of the linkage column (13). Two deceleration sliders (15) are installed on the bottom surface of the side limiting groove (10), and a deceleration friction block (16) is fixed on the upper surface of the deceleration slider (15).

6. A gearbox power system device for oilfield fracturing operations according to claim 5, characterized in that: The linkage column (13) and the squeezing block (14) are both slidably connected to the side limiting groove (10), and both sides of the squeezing block (14) are arc-shaped.

7. A gearbox power system device for oilfield fracturing operations according to claim 5, characterized in that: The deceleration slider (15) and the side limiting groove (10) are slidably connected, and a spring is connected between the deceleration slider (15) and the side limiting groove (10). The lower side surface of the deceleration slider (15) is inclined, and the two deceleration sliders (15) are located on both sides of the guide block (12).

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