Highly stable petroleum production equipment support ring

Abstract

The utility model discloses high -efficient stable petroleum exploitation equipment support ring, it includes segmented main bearing ring body, radial buffer subassembly and axial limiting structure, main bearing ring body is by three sections arc base body with ladder butt joint face mosaic connection, built -in dowel and elastic alloy pad layer, radial buffer subassembly contains I -shaped elastic support rib, titanium alloy floating bushing and pressure balance cavity with air -permeable micropore, axial limiting structure includes annular baffle, positioning boss and toothed thread locking snap ring. The present application can adapt to the complex working condition in the well and provide stable support.

Description

Technical Field

[0001] This utility model relates to the technical field of oil extraction machinery parts, and in particular to a support ring for high-efficiency and stable oil extraction equipment. Background Technology

[0002] During downhole operations, oil extraction equipment relies on support structures to position and secure critical components, ensuring the stability and safety of the equipment. Support rings, as a crucial component, are typically used to connect and stabilize tubing or downhole tools, and their structural design directly impacts the equipment's load-bearing capacity and service life under complex operating conditions. In practical applications, support rings must withstand multiple loads from formation pressure, fluid erosion, and mechanical vibration, while also adapting to high-temperature, high-pressure, and corrosive environments.

[0003] Existing support rings mostly adopt an integral metal ring structure, installed on the outer wall of the tubing string via interference fit or threaded connection. While this type of structure possesses a certain strength, under long-term alternating loads, local stress concentration is quite pronounced, easily leading to structural fatigue or decreased sealing performance. Furthermore, existing support rings have limited self-adjustment capability in response to downhole radial displacement or minor deformation, potentially affecting the overall stability of the equipment and consequently restricting mining efficiency and operational safety. Utility Model Content

[0004] The purpose of this utility model is to provide a high-efficiency and stable support ring for oil extraction equipment, which solves the problems mentioned in the background art.

[0005] This utility model is achieved as follows: a high-efficiency and stable support ring for oil extraction equipment includes a main load-bearing ring body, a radial buffer assembly, and an axial limiting structure, wherein:

[0006] The main bearing ring has a segmented structure, consisting of three arc-shaped base segments connected end to end to form a complete ring shape. Each arc-shaped base segment has stepped mating surfaces at both ends. Adjacent arc-shaped base segments interlock with each other through an interlocking method. Metal pins are installed inside the interlocking area for fixation. The two ends of the pins are respectively sunk into blind holes pre-set at the ends of the arc-shaped base segments. The bottom of the blind holes is filled with an elastic alloy pad to absorb the slight displacement generated when the pins are under force. A continuous wavy groove is opened in the middle of the outer wall of each arc-shaped base segment along the circumference. The groove cross-section is semi-circular, and its depth accounts for one-third of the thickness of the arc-shaped base segment. The surface of the groove is covered with a corrosion-resistant coating. The coating material is formed by thermal spraying of nickel-based alloy, and the thickness is controlled between fifty and eighty micrometers.

[0007] The radial buffer assembly is disposed within the inner ring of the main bearing ring and includes elastic support ribs, a floating bushing, and a pressure balancing cavity. The elastic support ribs are evenly distributed circumferentially along the inner wall of the main bearing ring, numbering twelve. One end of each elastic support rib is welded and fixed to the inner wall of the arc-shaped base, and the other end extends towards the central axis and connects to the outer edge of the floating bushing. The cross-section of the elastic support rib is I-shaped, and its web thickness decreases linearly along its length, gradually transitioning from 5 mm at the root to 2.5 mm at the end. The floating bushing is a ring-shaped thin-walled structure made of [material missing]. The high-strength titanium alloy sheet is stamped and formed, with its inner diameter slightly larger than the outer diameter of the supported column, leaving a gap of 0.3 mm to 0.8 mm between them. The outer edge of the floating bushing and the end of the elastic support rib are metallurgically bonded by laser cladding. The pressure balance chamber is located in the gap area between two adjacent elastic support ribs. The chamber is enclosed by the back of the floating bushing, the side of the elastic support rib, and the inner wall of the arc-shaped base. The top of the chamber is provided with ventilating micropores with a diameter of 0.5 mm, which are evenly distributed on the upper edge of the chamber to balance the pressure difference between the inside and outside.

[0008] The axial limiting structure is located on both ends of the main bearing ring and includes annular flanges, positioning bosses, and locking rings. The annular flanges are integrally formed on the axial ends of each arc-shaped base segment. The flange height is eight millimeters, its outer diameter is the same as the outer diameter of the main bearing ring, and its inner diameter is three millimeters smaller than the outer diameter of the floating bushing, forming a physical block against the axial movement of the floating bushing. The positioning bosses are located inside the annular flanges. The bosses have a trapezoidal cross-section, with an upper base width of four millimeters, a lower base width of six millimeters, and a height of five millimeters. They are arranged at 90-degree intervals along the circumference, corresponding to each arc-shaped base segment. Two positioning bosses are provided, with their top surfaces contacting the end faces of the floating bushings. A polytetrafluoroethylene (PTFE) patch, 0.5 mm thick, is provided in the contact area and fixed with a high-temperature adhesive. The locking ring is fitted onto the outside of the main bearing ring. The locking ring is composed of two semi-circular steel rings joined together. The inner wall of the steel rings has raised teeth that match the wavy grooves on the outer wall of the main bearing ring. The depth of the teeth is the same as the depth of the grooves. Through holes are provided at both ends of the locking ring. High-strength bolts are passed through these through holes to tighten the two semi-circular steel rings, ensuring the locking ring fits tightly against the outer wall of the main bearing ring and restricting its radial expansion deformation.

[0009] Optionally, a temperature sensing wire is embedded inside the arc-shaped base of the main bearing ring. The sensing wire is arranged in a serpentine pattern along the length of the arc-shaped base, with both ends leading out to the sealing joints on the outside of the ring. The sensing wire is made of nickel-chromium alloy and is covered with an insulating ceramic layer. The ceramic layer is then covered with a stainless steel sheath. Thermally conductive silicone grease is filled between the sheath and the arc-shaped base to ensure accurate temperature signal transmission.

[0010] Optionally, a reinforcing rib is added at the connection between the elastic support rib and the floating bushing. The rib is 3.5 mm thick and 10 mm high. One rib is set every 20 mm along the length of the elastic support rib. One side of the rib is welded to the web of the elastic support rib, and the other side is fused to the outer wall of the floating bushing to improve the bending stiffness of the connection.

[0011] Optionally, the pressure balancing chamber is filled with a damping gel, which is a mixture of silicone oil and silica particles in a volume ratio of nine to one. The gel is semi-solid at room temperature and undergoes a shear thickening effect when subjected to instantaneous impact load, thereby improving the buffer response speed.

[0012] Optionally, the outer edge of the annular retaining edge is provided with an annular guide groove. The guide groove has a rectangular cross-section, a width of 5 mm, and a depth of 4 mm. The bottom of the groove is provided with several radial guide grooves, each 1 mm wide and 2 mm deep, extending to the outer wall of the main bearing ring. These grooves are used to guide the downhole fluid to bypass the retaining edge and reduce the direct scouring of the retaining edge by the fluid.

[0013] Optionally, the positioning boss has a grease injection port on its side. The injection port is a tapered channel with the small end facing inward and the large end facing outward. The end of the channel leads to the back of the polytetrafluoroethylene patch. It is equipped with a plug-type sealing cap to facilitate the periodic replenishment of solid grease.

[0014] Optionally, the outer surface of the locking ring is provided with anti-slip texture, which is a cross-grid pattern with a grid side length of three millimeters and a depth of 0.8 millimeters, to enhance the grip stability of the operator during manual installation.

[0015] Optionally, the bottom of the wavy groove on the outer wall of the main bearing ring is provided with a stress relief notch. The notch is semi-circular with a diameter of 1.5 mm, and is provided every 50 mm along the groove direction to alleviate the stress concentration phenomenon at the root of the groove.

[0016] Optionally, the inner wall of the floating bushing is provided with a spiral guide rib. The guide rib has a triangular cross-section, a height of 0.6 mm, a pitch of 30 mm, and a spiral direction consistent with the mainstream direction of the downhole fluid, thereby reducing fluid resistance and suppressing eddy formation.

[0017] Optionally, the area where the root of the elastic support rib connects to the arc-shaped base is rounded with a radius of 8 mm, and the area is shot-peened to strengthen it, with the surface roughness controlled within Ra 0.4 micrometers to improve fatigue strength.

[0018] This utility model provides a high-efficiency and stable support ring for oil extraction equipment, which has the following beneficial effects:

[0019] This highly efficient and stable oil extraction equipment support ring, through a segmented main load-bearing ring body combined with an interlocking pin structure, effectively disperses the concentrated stress of the entire ring body under alternating loads, avoiding crack initiation caused by long-term peak load on a single location. The radial buffer assembly composed of elastic support ribs and floating bushings provides flexible support when the tubing undergoes slight radial displacement, while the damping gel in the pressure balance chamber achieves dynamic energy absorption, significantly reducing the vibration transmission amplitude. The annular flange and positioning boss in the axial limiting structure work together to constrain the axial movement range of the floating bushing, and the locking ring suppresses external expansion deformation, ensuring that the support ring maintains geometric stability under high-pressure environments. The detailed design of each component, such as wave-shaped grooves, stress relief notches, and spiral guide ridges, further optimizes the hydrodynamic characteristics and local mechanical properties, extends the service life of the support ring under combined conditions of corrosive media and high-frequency vibration, and improves the operational reliability of the oil extraction equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the segmented connection structure of the main bearing ring of this utility model;

[0022] Figure 3 This is a partial cross-sectional view of the radial buffer assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the unfolded floating bushing of this utility model;

[0024] Figure 5 This is an enlarged structural diagram of the arc-shaped base portion of this utility model;

[0025] Figure 6 This is a schematic diagram of the elastic support rib structure of this utility model;

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Main bearing ring; 2. Arc-shaped base; 3. Stepped mating surface; 4. Metal pin; 5. Blind hole; 6. Elastic alloy pad; 7. Wavy groove; 8. Corrosion-resistant coating; 9. Elastic support rib; 10. Floating bushing; 11. Pressure balance chamber; 12. Breathable micropores; 13. Annular flange; 14. Positioning boss; 15. Locking ring; 16. PTFE patch; 17. Raised tooth pattern; 18. High-strength bolt; 19. Temperature sensing wire; 20. Sealing joint; 21. Reinforcing rib; 22. Damping gel; 23. Annular guide groove; 24. Drainage groove; 25. Grease injection port; 26. Plug-type sealing cap; 27. Anti-slip texture; 28. Stress relief notch; 29. ​​Spiral guide ridge; 30. Rounded transition area; 31. Shot peening reinforcement layer; 32. I-shaped web; 33. Laser cladding bonding area. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1 to 6 This invention provides a high-efficiency and stable support ring for oil extraction equipment. This support ring is used in high-temperature, high-pressure, and corrosive downhole environments to provide radial and axial dual constraints on the production tubing or other downhole tools. It also accommodates minor displacements caused by vibration or thermal expansion and contraction of the tubing, maintaining the overall structural geometric stability. Its core structure consists of three parts working together: a main load-bearing ring 1, a radial buffer assembly, and an axial limiting structure. The components are mechanically interlocked, welded, and bolted to achieve a balance of rigidity and flexibility in their mechanical response.

[0030] The main bearing ring 1 is a segmented circular ring structure, consisting of three independently formed arc-shaped bases 2 connected end to end to form a complete closed loop. Each arc-shaped base 2 has stepped mating surfaces 3 machined at both ends. Adjacent arc-shaped bases 2 are nested and interlocked through these stepped mating surfaces 3 to form a circumferentially continuous and gapless annular contour. Inside the interlocking area, a metal pin 4 is radially inserted. The two ends of the metal pin 4 are respectively sunk into pre-set blind holes 5 at the ends of the arc-shaped bases 2. The bottom of the blind holes 5 is filled with an elastic alloy pad 6. This pad is made of nickel-titanium shape memory alloy sheet with a thickness of 1.2 mm. It undergoes reversible deformation under pressure, absorbing the axial movement energy of the metal pin 4 caused by alternating loads. A wavy groove 7 is formed along the circumference in the middle of the outer wall of each arc-shaped substrate 2. The groove has a semi-circular cross-section and a depth of one-third of the total thickness of the arc-shaped substrate 2, i.e., 6.7 mm. The surface of the groove is covered with a corrosion-resistant coating 8, which is formed by plasma thermal spraying of nickel-based alloy powder. The coating thickness is controlled at 60 micrometers. After spraying, laser remelting is performed to improve the density and bonding strength. Stress relief notches 28 are provided at the bottom of the wavy groove 7 every 50 mm. The notches are semi-circular and 1.5 mm in diameter, which are used to alleviate the tendency of crack initiation at the root of the groove under cyclic bending stress.

[0031] The radial buffer assembly is located in the inner ring region of the main load-bearing ring 1, and includes twelve elastic support ribs 9, a floating bushing 10, and pressure balancing chambers 11 distributed between adjacent elastic support ribs 9. The elastic support ribs 9 are evenly distributed circumferentially along the inner wall of the main load-bearing ring 1. One end of each elastic support rib 9 is fully penetrated and connected to the inner wall of the arc-shaped base 2 by argon arc welding, while the other end extends towards the central axis and is fixed to the outer edge of the floating bushing 10. The cross-section of the elastic support rib 9 is I-shaped, with the thickness of its web 32 decreasing linearly from 5 mm at the root to 2.5 mm at the end, while the flange width remains constant at 8 mm. This gradual design makes the elastic support rib 9 exhibit nonlinear stiffness characteristics under radial compression, with compliant deformation in the low-load stage and a sharp increase in stiffness in the high-load stage. The floating bushing 10 is an annular thin-walled component, formed by multiple deep-drawing processes from high-strength titanium alloy sheet, with a wall thickness of 0.8 mm and an inner diameter that is 0.5 mm larger than the outer diameter of the supported column, leaving an appropriate gap to accommodate the eccentric movement of the column. The outer edge of the floating bushing 10 and the end of the elastic support rib 9 are metallurgically connected by a laser cladding bonding area 33. The cladding material is cobalt-based high-temperature alloy powder, and the cladding layer thickness is 0.3 mm. Metallographic testing shows that the connection interface has no porosity or inclusion defects. The pressure balancing chamber 11 is located in the space enclosed by the sides of two adjacent elastic support ribs 9, the back of the floating bushing 10, and the inner wall of the arc-shaped base 2. The chamber is 12 mm high, and its width varies between 10 and 15 mm depending on its position. The top edge of the chamber has uniformly distributed permeable micropores 12, with a diameter of 0.5 mm, and six micropores per chamber. These micropores are used to connect the internal and external air pressures and prevent negative pressure adsorption within the chamber from causing the floating bushing 10 to fail to adhere. The pressure balancing chamber 11 is filled with a damping gel 22, which is prepared by mixing methyl silicone oil and nano-silica particles in a volume ratio of 9:1. Under static conditions, it is a paste-like semi-solid. When subjected to transient impact loads, the internal particle network structure of the gel undergoes shear reorganization, and the viscosity increases sharply, thereby rapidly dissipating kinetic energy.

[0032] The axial limiting structure is configured on both ends of the main bearing ring 1, including annular flanges 13, positioning bosses 14, and locking rings 15. The annular flanges 13 are integrally forged at the axial ends of each arc-shaped base 2, with a flange height of eight millimeters, an outer diameter consistent with the outer diameter of the main bearing ring 1, and an inner diameter three millimeters smaller than the outer diameter of the floating bushing 10, forming a hard limiting boundary for the axial displacement of the floating bushing 10. Positioning bosses 14 are located inside the annular flanges 13, with a trapezoidal cross-section, a top base width of four millimeters, a bottom base width of six millimeters, and a height of five millimeters. One boss is arranged every ninety degrees circumferentially, with two positioning bosses 14 corresponding to each arc-shaped base 2, for a total of six. The top surface of the positioning bosses 14 is in direct contact with the end face of the floating bushing 10. A polytetrafluoroethylene patch 16 is adhered to the contact surface, with a patch thickness of 0.5 millimeters, fixed using a modified epoxy resin high-temperature curing adhesive to reduce the coefficient of friction and isolate metal-to-metal wear. A grease injection port 25 is provided on the side of the positioning boss 14. The injection port is a tapered channel, with the smaller end (0.8 mm in diameter) facing the back of the PTFE patch 16 and the larger end (3.5 mm in diameter) facing outward. An external plug-type sealing cap 26 is fitted for periodic injection of solid grease to replenish the lubricating medium. The locking ring 15 is composed of two semi-circular steel rings joined together. The inner wall of the steel rings is machined with raised teeth 17 that match the contour of the wavy groove 7 on the outer wall of the main bearing ring 1. The tooth depth is 6.7 mm, consistent with the groove depth, ensuring tight engagement and no slippage. Through holes are provided at both ends of the locking ring 15. High-strength bolts 18 pass through these through holes to tighten the two semi-circular steel rings, applying a preload torque of 120 Nm, so that the locking ring 15 completely fits against the outer wall of the main bearing ring 1, suppressing radial expansion deformation that may occur under high pressure. The outer surface of the locking ring 15 is machined with anti-slip texture 27. The texture is in the form of a cross grid, with a grid side length of three millimeters and a recess depth of 0.8 millimeters, which enhances the reliability of the grip when the on-site installer operates it by hand.

[0033] A temperature sensing wire 19 is embedded inside the arc-shaped base 2 of the main bearing ring 1. The sensing wire is arranged in a serpentine pattern along the length of the arc-shaped base 2, with a turning interval of 25 mm. Both ends of the sensing wire are led out to the sealing joint 20 on the outside of the ring. The temperature sensing wire 19 is made of nickel-chromium alloy wire with a diameter of 0.3 mm. It is covered with an insulating ceramic layer with a thickness of 0.2 mm, and then covered with a stainless steel sheath with an outer diameter of 1.2 mm. The space between the sheath and the inner cavity of the arc-shaped base 2 is filled with thermally conductive silicone grease. The thermal conductivity of the silicone grease is greater than 2 watts per meter Kelvin, ensuring that the downhole temperature fluctuation signal is accurately transmitted to the surface monitoring system.

[0034] A reinforcing rib 21 is added to the connection area between the elastic support rib 9 and the floating bushing 10. The rib is 3.5 mm thick and 10 mm high, and is installed every 20 mm along the length of the elastic support rib 9. One side of the rib is connected to the web 32 of the elastic support rib 9 by pulsed MIG welding, and the other side is seamlessly fused to the outer wall of the floating bushing 10 by electron beam welding, which significantly improves the resistance to combined bending and torsional loads in this transition area. The connection between the root of the elastic support rib 9 and the arc-shaped base 2 is a rounded transition area 30 with a radius of 8 mm. This area is treated with a shot peening reinforcement layer 31 with a shot particle size of 0.3 mm, a coverage of 300%, a surface roughness Ra value controlled at 0.35 micrometers, and a residual compressive stress layer depth of 0.5 mm, which effectively delays the fatigue crack propagation rate.

[0035] An annular guide groove 23 is formed on the outer edge of the annular retaining edge 13. The guide groove has a rectangular cross-section, with a width of 5 mm and a depth of 4 mm. Radial guide channels 24 are distributed along the bottom of the groove, with a width of 1 mm and a depth of 2 mm, extending to the outer wall of the main bearing ring 1 and terminating therein. These guide channels guide high-speed downhole fluid around the retaining edge and directly into the affected area, reducing the local erosion rate. A spiral guide rib 29 is machined on the inner wall of the floating bushing 10. The guide rib has an isosceles triangular cross-section, a height of 0.6 mm, a base width of 0.8 mm, and a pitch of 30 mm. The spiral direction is consistent with the flow direction of the main downhole fluid, reducing the probability of fluid separation vortex formation and lowering pressure drop loss.

[0036] The assembly process is as follows: First, the three arc-shaped base sections 2 are arranged in sequence, and the stepped mating surfaces 3 are aligned using a special fixture. Metal pins 4 are inserted and the elastic alloy pads 6 are pressed in. Then, twelve elastic support ribs 9 are welded sequentially to the designated positions on the inner wall of the arc-shaped base section 2. Next, floating bushings 10 are fitted onto the free ends of the elastic support ribs 9, and the laser cladding equipment is activated to complete the forming of the joint area 33. Then, damping gel 22 is injected into the pressure balance chamber 11. After it has initially set, the annular retaining edge 13 and positioning boss 14 are installed, polytetrafluoroethylene patches 16 are attached, and the grease injection port 25 is sealed. Finally, the locking ring 15 is fitted onto the outside of the main bearing ring 1, high-strength bolts 18 are screwed in, and the specified torque is applied to complete the overall assembly. The temperature sensing wire 19 is pre-installed before the arc-shaped base section 2 is forged and is formed synchronously with the main structure. Both ends are led out through sealing joints 20 and connected to the data acquisition module.

[0037] During downhole operations, the main bearing ring 1 bears the main axial and circumferential loads. The segmented structure, combined with the metal pins 4 and the elastic alloy pads 6, disperses the peak stress. When the tubing experiences radial sway, the floating bushing 10 causes the elastic support ribs 9 to deform elastically. The gradually varying thickness design of the I-shaped web 32 allows its stiffness to adaptively adjust with the amount of deformation. The damping gel 22 in the pressure balance chamber 11 simultaneously undergoes a shear thickening effect to absorb vibration energy. Axial movement is limited by the dual-level limiting mechanism formed by the annular flange 13 and the positioning boss 14. The PTFE patch 16 provides a low-friction sliding interface. The locking ring 15 continuously applies radial constraint force to counteract the ring expansion trend caused by internal pressure. The wave-shaped groove 7 and the spiral guide rib 29 optimize the flow field distribution. The annular guide groove 23 and the drainage groove 24 guide the fluid path. The stress release notch 28 weakens the stress concentration effect. The shot peening reinforcement layer 31 and the reinforcing ribs 21 comprehensively improve the fatigue life of key components. The entire structure maintains dynamic stability under complex working conditions, ensuring the long-term reliable operation of the oil production equipment.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency and stable support ring for oil extraction equipment, characterized in that, It includes a main bearing ring (1), a radial buffer assembly, and an axial limiting structure, wherein: The main bearing ring (1) is a segmented structure, consisting of three arc-shaped bases (2) connected end to end to form a complete ring. Each arc-shaped base (2) has stepped mating surfaces (3) at both ends. Adjacent arc-shaped bases (2) are interlocked through the stepped mating surfaces (3). Metal pins (4) are fixed through the interlocking area. The two ends of the metal pins (4) are sunk into blind holes (5) at the ends of the arc-shaped bases (2). The bottom of the blind holes (5) is filled with an elastic alloy pad (6). A wavy groove (7) is opened in the middle of the outer side wall of each arc-shaped base (2) along the circumference. The groove (7) has a semi-circular cross section and is covered with a corrosion-resistant coating (8). The radial buffer assembly is located in the inner ring of the main bearing ring (1), including twelve elastic support ribs (9), floating bushings (10) and pressure balance chamber (11). One end of the elastic support rib (9) is welded to the inner wall of the arc-shaped base (2), and the other end is connected to the outer edge of the floating bushing (10). The inner diameter of the floating bushing (10) is larger than the outer diameter of the supported column, and a gap is reserved between them. The pressure balance chamber (11) is formed by the back of the adjacent elastic support ribs (9), the floating bushing (10) and the inner wall of the arc-shaped base (2). The top of the chamber is provided with a breathable micropore (12). The axial limiting structure is located on both ends of the main bearing ring (1), including annular flange (13), positioning boss (14) and locking ring (15). The annular flange (13) is integrally formed on the axial end of the arc-shaped base (2). The positioning boss (14) is located on the inner side of the annular flange (13). The locking ring (15) is fitted on the outer side of the main bearing ring (1). Its inner wall is provided with raised teeth (17) that match the wave-shaped groove (7). Both ends are tightened by high-strength bolts (18).

2. The high-efficiency and stable oil extraction equipment support ring according to claim 1, characterized in that: The arc-shaped substrate (2) is embedded with a temperature sensing wire (19). The temperature sensing wire (19) is arranged in a serpentine pattern along the length of the arc-shaped substrate (2), and both ends are led out to the sealing joint (20) on the outside of the ring. The temperature sensing wire (19) is covered with an insulating ceramic layer and a stainless steel sheath. Thermally conductive silicone grease is filled between the sheath and the arc-shaped substrate (2).

3. The high-efficiency and stable oil extraction equipment support ring according to claim 1, characterized in that: The connection between the elastic support rib (9) and the floating bushing (10) is provided with a reinforcing rib plate (21). The reinforcing rib plate (21) is 3.5 mm thick and 10 mm high. It is set every 20 mm along the length of the elastic support rib (9). One side is welded to the web plate (32) of the elastic support rib (9), and the other side is fused to the outer wall of the floating bushing (10).

4. The high-efficiency and stable oil extraction equipment support ring according to claim 1, characterized in that: The pressure balance chamber (11) is filled with damping gel (22), which is made by mixing silicone oil and silica particles in a volume ratio of nine to one.

5. The high-efficiency and stable oil extraction equipment support ring according to claim 1, characterized in that: The outer edge of the annular baffle (13) is provided with an annular guide groove (23). The cross section of the annular guide groove (23) is rectangular, and the bottom of the groove is provided with several radial guide grooves (24). The guide grooves (24) extend to the outer wall of the main bearing ring (1).

6. The high-efficiency and stable oil extraction equipment support ring according to claim 1, characterized in that: The positioning boss (14) has a grease injection port (25) on its side. The grease injection port (25) is a tapered channel and is equipped with a plug-type sealing cap (26) on the outside.

7. The high-efficiency and stable oil extraction equipment support ring according to claim 1, characterized in that: The outer surface of the locking ring (15) is provided with anti-slip texture (27), which is a cross grid with a grid side length of three millimeters and a depth of 0.8 millimeters.

8. The high-efficiency and stable oil extraction equipment support ring according to claim 1, characterized in that: The bottom of the wavy groove (7) is provided with a stress relief notch (28), which is semi-circular with a diameter of 1.5 mm, and is provided every 50 mm along the groove (7).

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