Bimetal cylinder sleeve

Abstract

The utility model is suitable for the technical field of cylinder sleeves, and provides a bimetal cylinder sleeve which comprises an outer barrel. The inner cylinder is mounted in the outer cylinder in a sliding manner; the connecting cylinder is detachably mounted on the inner cylinder; the groove is formed in the inner cylinder, a silica gel ring used for improving the sealing performance is fixed in the groove, and the silica gel ring is in contact with the inner wall of the outer cylinder; the shock pad is fixed in the outer cylinder and can be in contact with the inner cylinder; the limiting assembly is arranged on the inner cylinder and used for stabilizing the connecting cylinder; and the protection structure is arranged on the outer cylinder and is used for assisting equipment cooling. According to the scheme, the double-metal cylinder sleeve is good in cooling effect, gaps generated due to expansion caused by too high temperature are effectively prevented, and the operation stability of equipment is improved.

Description

Technical Field

[0001] This utility model belongs to the field of cylinder liner technology, and particularly relates to a bimetallic cylinder liner. Background Technology

[0002] Bimetallic cylinder liners are one of the main wear parts of the hydraulic end of mud pumps. The piston reciprocates in its bore to generate high pressure, first drawing mud into the cylinder, and then pumping the mud into the oil well under high pressure to consolidate the oil well. Existing bimetallic cylinder liners have poor stability during installation and a relatively simple structure. If the heat generated during use is not dissipated in time, it will reduce the service life of the equipment. Utility Model Content

[0003] This invention provides a bimetallic cylinder liner, which aims to solve the problems mentioned in the background art, such as poor stability during installation, simple structure, and reduced equipment lifespan due to the failure to dissipate heat in a timely manner.

[0004] To solve the above problems, this utility model is implemented as follows: a bimetallic cylinder liner, comprising: an outer cylinder; an inner cylinder slidably installed inside the outer cylinder; a connecting cylinder detachably installed on the inner cylinder; a groove provided on the inner cylinder, in which a silicone ring for increasing sealing is fixed, the silicone ring contacting the inner wall of the outer cylinder; a shock-absorbing pad fixed inside the outer cylinder and capable of contacting the inner cylinder; a limiting component provided on the inner cylinder for stabilizing the connecting cylinder; and a protective structure provided on the outer cylinder for assisting equipment cooling.

[0005] Preferably, the limiting component includes a pin threaded onto the inner cylinder, an adjustment port provided on the pin for providing an operating point, and a limiting port provided on the connecting cylinder. The pin can extend into the limiting port for stably connecting the inner cylinder and the connecting cylinder.

[0006] Preferably, the protective structure includes a protective shell fitted over the outer cylinder for impact resistance, an assembly recess on the protective shell for assisting in the assembly of the cylinder liner, and a cooling chamber inside the protective shell for allowing the flow of cooling water.

[0007] Preferably, the protective shell is provided with a liquid inlet for water intake and a liquid outlet for water discharge. Both the liquid inlet and the liquid outlet are provided with threads for connecting to the liquid cooling system. Both the liquid inlet and the liquid outlet are threadedly installed with plugs for sealing the protective shell.

[0008] Preferably, both the inner wall of the outer cylinder and the outer wall of the inner cylinder are provided with wear-resistant coatings to increase wear resistance, and the two wear-resistant coatings slide in contact. The inner wall of the inner cylinder is provided with an anti-corrosion coating to increase corrosion resistance.

[0009] Preferably, a support ring for increasing the strength of the connecting cylinder is welded to the inner wall of the connecting cylinder, the support ring and the limiting port are located on the same Y axis, and the connecting cylinder can extend into the outer cylinder.

[0010] Preferably, the outer walls of both the outer cylinder and the protective shell are coated with anti-rust paint, and the inner wall of the outer cylinder is coated with machine oil for lubrication and rust prevention.

[0011] Compared with related technologies, the bimetallic cylinder liner provided by this utility model has the following beneficial effects:

[0012] Compared with existing technologies, the bimetallic cylinder liner provided in this solution achieves the goal of enhancing the overall strength, stability, and durability of the cylinder liner through optimized structural design. The bimetallic cylinder liner design improves pumping efficiency, while the application of silicone rings and wear-resistant coatings enhances sealing and wear resistance, effectively preventing mud leakage and extending equipment life. The addition of shock-absorbing pads reduces noise and vibration, improving operational stability. Limiting components ensure stable installation of the connecting cylinder, improving equipment safety and reliability. The protective structure and its cooling system effectively reduce the equipment's operating temperature, preventing overheating damage. The support ring design enhances the strength of the connecting cylinder, making it more stable and reliable. The use of anti-rust paint and machine oil further protects the outer and inner walls of the equipment, improving the overall performance and appearance of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main cross-sectional structure of a bimetallic cylinder liner provided by this utility model;

[0014] Figure 2 for Figure 1 An enlarged structural diagram of part A shown in the figure;

[0015] Figure 3 This is a side view of the outer cylinder structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the main structure of the connecting cylinder in this utility model.

[0017] Reference numerals: 1. Outer cylinder; 2. Inner cylinder; 3. Connecting cylinder; 4. Silicone ring; 5. Shock-absorbing pad; 6. Protective shell; 7. Assembly notch; 8. Cooling chamber; 9. Pin; 10. Adjustment port; 11. Limiting port; 12. Wear-resistant coating; 13. Anti-corrosion coating; 14. Liquid inlet; 15. Liquid outlet; 16. Support ring. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] This utility model embodiment provides a bimetallic cylinder liner, such as Figures 1-4 As shown, the bimetallic cylinder liner includes: an outer cylinder 1; an inner cylinder 2 slidably mounted inside the outer cylinder 1; a connecting cylinder 3 detachably mounted on the inner cylinder 2; a groove provided on the inner cylinder 2, in which a silicone ring 4 for increasing sealing is fixed, the silicone ring 4 contacting the inner wall of the outer cylinder 1; a shock-absorbing pad 5 fixed inside the outer cylinder 1 and capable of contacting the inner cylinder 2; a limiting component provided on the inner cylinder 2 for stabilizing the connecting cylinder 3; and a protective structure provided on the outer cylinder 1 for auxiliary equipment cooling.

[0021] In this embodiment, the outer cylinder 1 serves as the outer structure of the bimetallic cylinder liner, providing support and protection, enhancing the overall strength and stability of the cylinder liner. The slurry intake and discharge process takes place inside the inner cylinder 2, where the piston reciprocates, generating high pressure to achieve the slurry pumping function. The connecting cylinder 3 connects the inner cylinder 2 to other components, such as the piston rod, facilitating installation, disassembly, and maintenance, and improving the equipment's flexibility. The silicone ring 4 increases the sealing between the inner cylinder 2 and the outer cylinder 1, preventing slurry leakage, improving pumping efficiency, and extending the equipment's service life. The shock-absorbing pad 5 reduces vibration and impact on the inner cylinder 2 during reciprocating motion, lowering noise, protecting the equipment structure, and improving operational stability. The limiting component ensures the stable installation of the connecting cylinder 3 on the inner cylinder 2, preventing loosening or detachment, and improving the equipment's safety and reliability.

[0022] In a further preferred embodiment of the present invention, the limiting component includes a pin 9 threadedly mounted on the inner cylinder 2, an adjustment port 10 provided on the pin 9 for providing an operating point, and a limiting port 11 provided on the connecting cylinder 3. The pin 9 can extend into the limiting port 11 for stably connecting the inner cylinder 2 and the connecting cylinder 3.

[0023] In this embodiment, the pin 9 is fixed to the inner cylinder 2 by a threaded connection. Its position can be adjusted as needed, providing a reliable connection method. This allows the pin 9 to be firmly installed on the inner cylinder 2, while also facilitating disassembly and maintenance. The adjustment port 10 provides an operating point for the operator to easily grasp and rotate the pin 9, making the adjustment of the pin 9 more convenient and quick, and improving the efficiency of installation and disassembly. The limiting port 11 cooperates with the pin 9. When the pin 9 extends into the limiting port 11, it can stably connect the inner cylinder 2 and the connecting cylinder 3. Through the cooperation of the pin 9 and the limiting port 11, a firm connection between the inner cylinder 2 and the connecting cylinder 3 is achieved, preventing the connecting cylinder 3 from loosening or falling off during movement, and improving the safety and stability of the equipment.

[0024] In a further preferred embodiment of the present invention, the protective structure includes a protective shell 6 sleeved on the outer cylinder 1 for impact resistance, an assembly recess 7 provided on the protective shell 6 for assisting in the assembly of the cylinder liner, and a cooling chamber 8 provided inside the protective shell 6 to allow the flow of cooling water.

[0025] In this embodiment, the protective shell 6 serves as the outer protective layer of the outer cylinder 1, capable of withstanding external impacts and collisions, protecting the internal structure from damage, enhancing the overall impact resistance of the cylinder liner, and improving the durability and reliability of the equipment in harsh working environments. The assembly notch 7 provides positioning points and operating space for the cylinder liner installation, enabling the cylinder liner to be accurately and conveniently installed in the designated position, simplifying the cylinder liner assembly process, improving assembly efficiency, and ensuring the stability and accuracy of the cylinder liner during installation. The cooling chamber 8 is a cavity inside the protective shell 6, allowing cooling water to circulate within it. The water circulation removes the heat generated during equipment operation, effectively reducing the equipment's operating temperature, preventing equipment damage or performance degradation due to overheating, extending the equipment's service life, and improving work efficiency.

[0026] In a further preferred embodiment of the present invention, the protective shell 6 is provided with a liquid inlet 14 for water inlet and a liquid outlet 15 for water outlet. Both the liquid inlet 14 and the liquid outlet 15 are provided with threads for connecting to the liquid cooling system. Both the liquid inlet 14 and the liquid outlet 15 are threadedly installed with plugs for sealing the protective shell 6.

[0027] In this embodiment, the liquid inlet 14 serves as the inlet of the cooling system, allowing cooling water or other cooling liquids to enter the cooling chamber 8 inside the protective shell 6. The liquid inlet 14 is provided with threads for connecting the liquid cooling system, facilitating a reliable connection with an external cooling system. Introducing cooling liquid through the liquid inlet 14 can effectively reduce the operating temperature of the equipment, prevent overheating, and improve the stability and service life of the equipment. The liquid outlet 15 serves as the outlet of the cooling system, allowing the cooling liquid that has absorbed heat to be discharged from inside the protective shell 6. The liquid outlet 15 is also provided with threads for connecting the liquid cooling system, ensuring a tight connection with an external cooling system. The absorbed heat is discharged through the liquid outlet 15, maintaining the continuous and effective operation of the cooling system and further reducing the operating temperature of the equipment. When the cooling system is not needed, the liquid inlet 14 and the liquid outlet 15 can be sealed by installing a plug with threads to prevent external impurities from entering the protective shell 6. The liquid cooling system consists of a tank for storing cooling liquid, a pump for drawing cooling liquid, and a pipe for circulating cooling liquid.

[0028] In a further preferred embodiment of the present invention, both the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2 are provided with wear-resistant coatings 12 for increasing wear resistance, and the two wear-resistant coatings 12 are in sliding contact. The inner wall of the inner cylinder 2 is provided with an anti-corrosion coating 13 for increasing corrosion resistance.

[0029] In this embodiment, the wear-resistant coating 12 covers the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2. When the two slide relative to each other, the wear-resistant coating 12 is in direct contact, which reduces wear. The wear-resistant coating 12 significantly improves the wear resistance between the outer cylinder 1 and the inner cylinder 2, extends their service life, and reduces equipment failure and maintenance costs caused by wear. During the operation of the mud pump, relative sliding will occur between the outer cylinder 1 and the inner cylinder 2. The sliding contact of the wear-resistant coating 12 ensures the smoothness of this movement. The sliding contact design reduces frictional resistance, improves the working efficiency of the pump, and further protects the base materials of the outer cylinder 1 and the inner cylinder 2 from wear. The anti-corrosion coating 13 enhances the anti-corrosion performance of the inner cylinder 2, improves its resistance to corrosive components in the mud, extends the service life of the inner cylinder 2, and ensures the stable operation of the mud pump.

[0030] In a further preferred embodiment of the present invention, a support ring 16 for increasing the strength of the connecting cylinder 3 is welded on the inner wall of the connecting cylinder 3. The support ring 16 and the limiting port 11 are located on the same Y-axis, and the connecting cylinder 3 can extend into the outer cylinder 1.

[0031] In this embodiment, the support ring 16, as part of the internal structure of the connecting cylinder 3, is firmly fixed to the inner wall of the connecting cylinder 3 by welding to enhance the overall strength of the connecting cylinder 3. The design of the support ring 16 takes into account the principles of structural mechanics, and its shape and position have been optimized to ensure that stress can be effectively dispersed and transmitted when subjected to external forces. The addition of the support ring 16 significantly improves the mechanical properties of the connecting cylinder 3, such as compressive and bending resistance, making the connecting cylinder 3 more stable and reliable when subjected to various forces during the operation of the mud pump, and extending its service life. The coaxial design of the support ring 16 and the limiting port 11 ensures the stability and accuracy of the connection, making the mud pump run more smoothly and reducing failures and wear caused by unstable connection. The extended design of the connecting cylinder 3 improves the integration and space utilization of the mud pump, enabling the equipment to perform greater functions in a limited space, while simplifying the installation process and reducing maintenance costs.

[0032] In a further preferred embodiment of this utility model, the outer walls of both the outer cylinder 1 and the protective shell 6 are coated with anti-rust paint, and the inner wall of the outer cylinder 1 is coated with machine oil for lubrication and rust prevention.

[0033] In this embodiment, anti-rust paint, as a special coating, is evenly sprayed onto the outer walls of the outer cylinder 1 and the protective shell 6 to form a dense protective film. This protective film can effectively isolate air and moisture, prevent the outer cylinder 1 and the protective shell 6 from corrosion, thereby extending their service life. At the same time, the anti-rust paint also has a certain aesthetic effect, improving the overall appearance of the equipment. As a lubricant, machine oil is applied to the inner wall of the outer cylinder 1 to form a lubricating film. This lubricating film can reduce the friction between the outer cylinder 1 and the inner cylinder 2 (or other parts in contact with it), reduce wear, and improve the operating efficiency of the equipment. At the same time, machine oil also has a certain anti-rust effect, which can further protect the inner wall of the outer cylinder 1 from corrosion.

[0034] In summary, compared with related technologies, this device, through optimized structural design, achieves the overall goal of enhancing the strength, stability, and durability of the cylinder liner. The bimetallic cylinder liner design improves pumping efficiency. The application of silicone ring 4 and wear-resistant coating 12 enhances sealing and wear resistance, effectively preventing mud leakage and extending equipment life. The addition of shock-absorbing pad 5 reduces noise and vibration, improving operational stability. The limiting components ensure stable installation of connecting cylinder 3, improving equipment safety and reliability. The protective structure and its cooling system effectively reduce the equipment's operating temperature, preventing overheating damage. The design of support ring 16 enhances the strength of connecting cylinder 3, making it more stable and reliable. The use of anti-rust paint and machine oil further protects the outer and inner walls of the equipment, improving the overall performance and appearance of the equipment.

[0035] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A bimetallic cylinder liner, characterized in that, include: outer cylinder; An inner cylinder that is slidably installed inside the outer cylinder; A connecting cylinder that can be detachably installed on the inner cylinder; A groove is provided on the inner cylinder, and a silicone ring for increasing sealing is fixed in the groove. The silicone ring is in contact with the inner wall of the outer cylinder. A shock-absorbing pad fixed inside the outer cylinder and capable of contacting the inner cylinder; A limiting component is provided on the inner cylinder to stabilize the connecting cylinder; A protective structure installed on the outer cylinder to assist in cooling the equipment.

2. The bimetallic cylinder liner as described in claim 1, characterized in that, The limiting component includes a pin threaded onto the inner cylinder, an adjustment port provided on the pin for providing an operating point, and a limiting port provided on the connecting cylinder. The pin can extend into the limiting port for stably connecting the inner cylinder and the connecting cylinder.

3. The bimetallic cylinder liner as described in claim 1, characterized in that, The protective structure includes a protective shell fitted over the outer cylinder for impact resistance, an assembly recess on the protective shell for assisting in the assembly of the cylinder liner, and a cooling chamber inside the protective shell for allowing the flow of cooling water.

4. The bimetallic cylinder liner as described in claim 3, characterized in that, The protective shell is provided with a liquid inlet for water intake and a liquid outlet for water discharge. Both the liquid inlet and the liquid outlet are provided with threads for connecting to the liquid cooling system. Both the liquid inlet and the liquid outlet are threaded with plugs for sealing the protective shell.

5. The bimetallic cylinder liner as described in claim 1, characterized in that, Both the inner wall of the outer cylinder and the outer wall of the inner cylinder are provided with wear-resistant coatings to increase wear resistance, and the two wear-resistant coatings slide in contact. The inner wall of the inner cylinder is provided with an anti-corrosion coating to increase corrosion resistance.

6. The bimetallic cylinder liner as described in claim 2, characterized in that, A support ring for increasing the strength of the connecting cylinder is welded to the inner wall of the connecting cylinder. The support ring and the limiting port are located on the same Y-axis. The connecting cylinder can extend into the outer cylinder.

7. The bimetallic cylinder liner as described in claim 3, characterized in that, The outer cylinder and the outer wall of the protective shell are both coated with anti-rust paint, and the inner wall of the outer cylinder is coated with machine oil for lubrication and rust prevention.

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