Disassembling tool special for oil pump bearing and using method

Abstract

The invention relates to the technical field of oil pump bearing disassembly and assembly, in particular to a special disassembly tool for an oil pump bearing and a using method, the special disassembly tool comprises a transverse plate and a middle ejector rod in threaded connection with the transverse plate, the middle ejector rod is used for abutting against a center shaft of an oil pump, and detachable side rods are further arranged on the two sides of the transverse plate. The side rod is clamped between the inner ring and the outer ring of the bearing. The circular plate on the side rod is directly inserted and clamped between the inner ring and the outer ring of the bearing, so that the position of the bearing is firmly locked, shaking and separation of the inner ring and the outer ring are avoided, the bearing can be directly driven to integrally move, and rapid and safe disassembly is achieved. Compared with a traditional method, the problems of slippage and separation of the inner ring and the outer ring are avoided, and the whole operation is simpler, more convenient and more reliable. In addition, due to the design of universality and durability of the tool, the tool can adapt to various working environments, the downtime of equipment is shortened, and therefore an efficient and stable solution is provided for maintenance and replacement of the oil pump bearing.

Description

Technical Field

[0001] The invention relates to the technical field of oil pump bearing disassembly and assembly, and in particular to a special disassembly tool for an oil pump bearing and a use method thereof. Background Art

[0002] In modern industry, the maintenance and replacement of oil pump bearings is an important part of ensuring the normal operation of equipment. Especially in coal-fired thermal power generating units, the bearings of oil pumps are often damaged due to long-term operation, resulting in equipment shutdown and affecting production efficiency. Our factory's large and small machines, back pressure machine lubricating oil pumps, EH oil pumps, high and low bypass oil pumps are all vertical pumps with the pump body in the oil tank. If the oil pump bearing is damaged, it is necessary to stop the system and pump to replace the oil pump bearing. Usually, it is necessary to shut down and lift out the entire oil pump, which is not only time-consuming and labor-intensive, but may also cause additional damage to the equipment.

[0003] In the existing oil pump bearing disassembly practice, the use of a claw tool is a common method for disassembling bearings. This method involves hooking the claw on the wide surface of the outer ring of the bearing, and then turning the screw to push the rotating body downward, thereby pulling off the bearing stuck on the claw. However, this method has some problems and challenges: (1) Clamping reliability issues: When the claw is clamped on the outermost side of the bearing, it is easy to loosen during the force application process, which may lead to disassembly failure. This situation may be due to insufficient clamping force due to the design of the claw or the damage state of the bearing. (2) Risk of bearing damage: If the bearing is already damaged, using a claw tool may only pull out the outer ring of the bearing, while the inner ring still remains on the equipment, which requires additional steps to remove the inner ring, increasing the workload and complexity. Summary of the invention

[0004] In view of the above problems existing in the existing special disassembly tools for oil pump bearings, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a special disassembly tool for oil pump bearings, which aims to avoid the brute force disassembly in traditional methods and the problem of claw disassembly, reduce the risk of damage to equipment and bearings, and improve disassembly efficiency and safety.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a special disassembly tool for oil pump bearings, comprising a horizontal plate and a middle push rod screwed on the horizontal plate, the middle push rod is used to push against the central axis of the oil pump, and detachable side rods are also arranged on both sides of the horizontal plate, and the side rods are clamped between the inner and outer rings of the bearing.

[0007] As a preferred solution of the special disassembly tool for oil pump bearings of the present invention, two opening grooves are symmetrically arranged on the transverse plate, and the two side rods correspond to the two opening grooves respectively.

[0008] As a preferred solution of the special disassembly tool for oil pump bearings described in the present invention, each of the side rods is composed of a threaded section, a regular polygonal column section, a smooth rod section, a thin rod section and a circular plate from top to bottom, wherein the circular plate is used to be clamped in the bearing groove between the inner ring and the outer ring of the bearing.

[0009] As a preferred solution of the special disassembly tool for oil pump bearings described in the present invention, each of the regular polygonal column sections of the side rod has a regular polygonal cross section, the inner end of the open groove is set to be a polygon, and the two parts match each other.

[0010] As a preferred solution of the special disassembly tool for oil pump bearings of the present invention, the outer wall of the middle push rod is provided with threads, the center of the cross plate is provided with a screw hole, and the middle push rod is screwed into the screw hole.

[0011] As a preferred solution of the special disassembly tool for oil pump bearings of the present invention, the length of the middle push rod is greater than or equal to the length of the two side rods.

[0012] As a preferred solution of the special disassembly tool for oil pump bearings described in the present invention, the upper end of the middle push rod is set as a force-applying end, which includes a straight groove, a cross groove, a regular polygon, a through hole and the like.

[0013] As a preferred solution of the special disassembly tool for oil pump bearings of the present invention, a gasket and a nut are arranged at the upper end of each side rod, and the nut is threadedly connected to the threaded section.

[0014] In order to solve the above technical problems, the present invention provides the following technical solutions: a method for using a special disassembly tool for an oil pump bearing, comprising the special disassembly tool for an oil pump bearing, and,

[0015] First, put the gasket on the side rod, then screw the nut on the side rod, and slide the side rod into the open slot;

[0016] First, align the middle push rod with the center axis of the oil pump, and insert the round plates of the two side rods between the inner and outer rings of the bearing;

[0017] Turn the middle push rod to push the oil pump downward, otherwise the bearing will be separated from the oil pump.

[0018] As a preferred solution of the special disassembly tool for oil pump bearings described in the present invention, the circular plate on the side rod is first aligned with the gap between the inner and outer rings of the bearing and inserted, and then the side plate is rotated to clamp the circular plate in the bearing groove between the inner and outer rings of the bearing.

[0019] Beneficial effects of the present invention: Through its innovative design, it provides significant improvements in improving disassembly efficiency, simplifying operation procedures, enhancing operation safety and improving work quality. The circular plate on the side rod of the tool is directly inserted and clamped between the inner and outer rings of the bearing, which not only firmly locks the bearing position and avoids the shaking and separation of the inner and outer rings, but also can directly drive the overall movement of the bearing to achieve fast and safe disassembly. Compared with traditional methods, this design avoids the problems of slippage and separation of the inner and outer rings, making the entire operation simpler and more reliable. In addition, the versatility and durability of the tool enable it to adapt to various working environments, reduce maintenance costs, and reduce equipment downtime, thereby providing an efficient and stable solution for the maintenance and replacement of oil pump bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the special disassembly tool for oil pump bearings of the present invention.

[0022] Figure 2 It is a front view structural schematic diagram of the special disassembly tool for oil pump bearings of the present invention.

[0023] Figure 3 It is a partial structural schematic diagram of the special disassembly tool for oil pump bearings of the present invention.

[0024] Figure 4 It is a schematic diagram of the force-applying end structure of a slotted shape of the present invention.

[0025] Figure 5 It is a schematic diagram of the force-applying end structure of the cross groove of the present invention.

[0026] Figure 6 It is a schematic diagram of the force-applying end structure of the through hole shape of the present invention.

[0027] In the figure:

[0028] 100, horizontal plate; 101, opening slot; 102, screw hole;

[0029] 200, middle push rod; 201, force application end;

[0030] 300, side rod; 301, threaded section; 302, regular polygonal column section; 303, smooth rod section; 304, thin rod section; 305, circular plate; 306, gasket; 307, nut. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0035] Example 1

[0036] Reference Figure 1-Figure 3 , which is the first embodiment of the present invention, provides a special disassembly tool for oil pump bearings, including a cross plate 100 and a middle push rod 200 screwed on the cross plate 100, the middle push rod 200 is used to push against the central axis of the oil pump, and detachable side rods 300 are also provided on both sides of the cross plate 100, and the side rods 300 are stuck between the inner and outer rings of the bearing.

[0037] The patented special disassembly tool for oil pump bearings realizes an efficient, safe and stable bearing disassembly process through its unique design. Specifically: the circular plate 305 of the side rod 300 is precisely inserted between the inner ring and the outer ring of the bearing and rotated to fit into the bearing groove. This design brings two main advantages: Position locking and enhanced stability: The insertion and clamping action of the circular plate 305 effectively locks the position of the inner ring and the outer ring of the bearing, preventing them from shaking and disengaging from each other. This locking mechanism ensures the stability of the bearing during the disassembly process and avoids disassembly failure or equipment damage caused by movement or misalignment of the bearing ring. Overall movement and firm clamping: By clamping the circular plate 305 between the inner ring and the outer ring of the bearing, the tool can directly drive the overall movement of the bearing to achieve extraction from the oil pump. Compared with the traditional clamping of the claw from the outside, this internal clamping method is more secure, avoids the problem of slippage and separation of the inner ring and the outer ring, and ensures the continuity and reliability of the disassembly process.

[0038] The effects of this patent can be summarized as follows: Improve disassembly efficiency: The design of the tool allows for quick positioning and disassembly of bearings, significantly reducing the time required for oil pump bearing replacement. Easy operation: The simplified operating steps make the tool easy to use and reduce the reliance on professional skills. Enhanced safety: Reduced direct impact and knocking on the oil pump and bearings, reducing the risk of equipment damage and operator injury. Improved stability and reliability: Precise component fit and locking mechanism ensure stability during disassembly. Reduced equipment downtime: Due to the simplification of the disassembly process, the downtime of the equipment is significantly shortened. Reduced maintenance costs: Reduced the need for professional tools and professionals, reducing the cost of maintenance and repair. Improved tool durability: The structural design takes durability into account, allowing the tool to withstand repeated use. Improved work quality: Through precise positioning and fixation, the tool ensures uniformity and balance of bearing disassembly. Overall, the patented special disassembly tool for oil pump bearings provides significant improvements in improving work efficiency, simplifying operating procedures, enhancing safety and adaptability through its innovative design, providing an efficient and reliable solution for the maintenance and replacement of oil pump bearings.

[0039] First, the circular plate 305 of the side rod 300 is inserted between the inner and outer rings of the bearing, and then rotated and clamped between the inner and outer rings of the bearing. On the one hand, the position of the inner and outer rings of the bearing can be locked to avoid shaking between the two, thereby avoiding the inner and outer rings from separating from each other; on the other hand, the circular plate 305 is clamped between the inner and outer rings of the bearing, so that the entire bearing can be directly driven to move together and be pulled out of the oil pump together. This method is more secure than clamping from the outside with claws, and there will be no slipping or separation of the inner and outer rings. The whole operation is simple and the effect is better.

[0040] Among them, the threaded section 301 is located at the upper end of the side rod 300, and cooperates with the gasket 306 and the nut 307, so that the side rod 300 can be firmly stuck on the cross plate 100. This design allows the side rod 300 to slide on the cross plate 100 to adjust the position, but it is fastened by the nut 307 in the final position to ensure that the cross plate 100 can drive the side rod 300 to move outward synchronously during the disassembly process. The regular polygon column section 302 is located below the threaded section 301, and matches the shape of the inner end of the open groove 101 on the cross plate 100, further ensuring the positioning of the side rod 300 on the cross plate 100 and the angle locking. The light rod section 303 provides an appropriate length and diameter to adapt to different disassembly scenarios and torque requirements. The thin rod section 304 is set to be located in the gap between the inner and outer rings of the bearing when the circular plate 305 is stuck in the bearing groove of the inner and outer rings of the bearing, and cooperates with the overall rotation of the side rod 300. The circular plate 305 is located at the lower end of the side rod 300 and is the part that directly contacts the bearing. It can rotate and be stuck in the bearing groove between the inner ring and the outer ring of the bearing to provide necessary support and fixation for disassembly.

[0041] The design of the middle push rod 200 is also critical. Its outer wall is provided with threads, and it can be screwed into the screw hole 102 in the center of the cross plate 100 through the threads. This threaded connection method not only ensures a firm connection between the middle push rod 200 and the cross plate 100, but also allows the middle push rod 200 to be adjusted or disassembled when necessary. When the middle push rod 200 is aligned with the central axis of the oil pump and rotated, the circular plate 305 on the side rod 300 will tightly clamp the bearing, so that the entire bearing can be smoothly removed from the oil pump.

[0042] In general, the design of this oil pump bearing removal tool fully considers the stability, operation convenience and adaptability during the removal process. Through the precise matching of the side rod 300 and the middle push rod 200, and the stable positioning of the round plate 305 in the bearing groove, the tool can efficiently complete the bearing removal work while ensuring safety.

[0043] Two opening slots 101 are symmetrically arranged on the horizontal plate 100, and the two side bars 300 correspond to the two opening slots 101. The regular polygon column section 302 of each side bar 300 has a regular polygonal cross section, and the inner end of the opening slot 101 is set to a polygon, and the two parts match each other.

[0044] The two open slots 101 symmetrically arranged on the cross plate 100 correspond one-to-one with the two side rods 300, ensuring the balance of the tool and further ensuring the balance during disassembly. The regular polygonal column section 302 of the side rod 300 cooperates with the polygonal shape of the inner end of the open slot 101, providing a stable embedding and locking to prevent the side rod 300 from rotating or shifting during operation. When using a special disassembly tool for oil pump bearings, we follow a simple and effective procedure to ensure that the bearing can be safely and stably removed from the oil pump. The following is a clear and logical description of this process: the order of initial assembly, positioning of the side rod 300, clamping of the round plate 305, locking of the side rod 300, and completion of disassembly. The details are as follows:

[0045] First, the washer 306 is sleeved on the side rod 300. The function of the washer 306 is to provide protection for the side rod 300 and ensure good contact between the side rod 300 and the oil pump bearing during the disassembly process. Next, the nut 307 is tightened on the side rod 300, which provides the necessary fixing force for the side rod 300 to ensure that the side rod 300 will not loosen during subsequent operations. Then, the side rod 300 slides in along the open groove 101 on the cross plate 100, but will not immediately slide to the innermost side and lock. This step is to facilitate the rotation of the side rod 300 in the next operation. The circular plate 305 on the side rod 300 is precisely aligned with the gap between the inner and outer rings of the bearing and inserted therein. By rotating the side plate, the circular plate 305 is clamped in the bearing groove, providing a stable support point for disassembly. After the circular plate 305 is successfully clamped in the bearing groove, the side rod 300 will be slid to the innermost side of the open groove 101 and locked at an angle.

[0046] This design simplifies the operation process. The rotation angle of the side rod 300 and the circular plate 305 can be locked by simply sliding the side rod 300. The locking mechanism ensures that the circular plate 305 will not rotate during the disassembly process and remains in a state of being horizontally stuck between the inner and outer rings of the bearing. Once the positions of the side rod 300 and the circular plate 305 are fixed, the bearing can be disassembled. By applying force to the side rod 300 at the same time, the bearing can be pulled out of the oil pump as a whole, achieving efficient and safe disassembly. The advantage of this design lies in its simplicity and reliability. Through precise positioning and firm fixation, the tool ensures the stability and safety of the disassembly process and reduces the potential risk of damage to the oil pump and the bearing. In addition, the simplified operating steps also improve work efficiency, making the entire disassembly process more efficient.

[0047] When designing the special disassembly tool for oil pump bearings, we paid special attention to the length design of the middle push rod 200 to ensure that it can meet the requirements of efficient and safe disassembly. The length of the middle push rod 200 is carefully set to be greater than or equal to the length of the two side rods 300. The logic behind this design choice is to ensure that the middle push rod 200 can effectively support the central shaft (rotor) of the oil pump, thereby providing the necessary support and force application points during the disassembly process.

[0048] When the oil pump bearing needs to be replaced, the role of the middle push rod 200 is to separate the bearing from the oil pump. To achieve this goal, the middle push rod 200 must be able to fully contact the center axis of the oil pump and exert sufficient force to push the bearing to separate. If the length of the middle push rod 200 is insufficient, it will not be able to fully contact the center axis, resulting in the inability to effectively transmit the required force, thereby failing to successfully remove the bearing. In addition, the insufficient length of the middle push rod 200 may also cause instability during operation and potential equipment damage. Therefore, by designing the length of the middle push rod 200 to be greater than or equal to the length of the two side rods 300, we ensure that the middle push rod 200 can provide stable and uniform force transmission throughout the disassembly process. This design not only improves the disassembly efficiency and reduces the equipment downtime, but also enhances the safety of operation and reduces the risk of accidents caused by improper operation. In addition, this design also makes the tool more adaptable and can adapt to oil pumps of different types and specifications, thereby improving the versatility and applicability of the tool.

[0049] Example 2

[0050] Reference Figure 1-Figure 6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that the upper end of the middle push rod 200 is set as a force-applying end 201, which includes a straight groove, a cross groove, a regular polygon, a through hole and the like.

[0051] In order to improve the operating convenience and efficiency of the special removal tool for oil pump bearings, we have carefully designed the force end 201 of the tool to ensure that users can easily use it with various tools. The following is a clear explanation of the design details of the force end 201 and how these designs improve the operating effect:

[0052] Design of force end 201

[0053] 1. Slotted or cross slot: The force-applying end 201 is designed in the form of a slotted or cross slot, which allows the user to easily insert a common screwdriver into the slot. Once the screwdriver is inserted into the slot, the user can rotate the middle push rod 200 by turning the screwdriver, thereby applying force to the oil pump bearing for disassembly. The advantage of this design is its versatility, because the screwdriver is a standard tool in most tool boxes, and the user does not need to purchase additional special tools.

[0054] 2. Regular polygon or through hole: Another design is to design the force-applying end 201 in the form of a regular polygon or a through hole, so that it can be used in conjunction with a wrench or a lever tool. The user can clamp the opening of the wrench on the regular polygon, or insert one end of the lever into the through hole, and then use the leverage of the wrench or lever to rotate the middle push rod 200. This design provides a greater force-applying advantage, allowing the user to save more effort when rotating the middle push rod 200, and is particularly suitable for disassembly work that requires a large torque.

[0055] 3. Combination design: In order to provide maximum flexibility and applicability, the force-applying end 201 can also be designed as a combination of various forms such as a slot, a cross slot, a regular polygon or a through hole. This combination design allows the user to choose the most appropriate tool and force-applying method according to specific disassembly requirements and site conditions. For example, the user may choose to use a screwdriver in some cases, and choose to use a wrench or lever in other cases where a larger torque is required.

[0056] With these designs, users can easily select and use the tools at hand, without having to purchase and carry additional tools for each specific task. Whether using a screwdriver, wrench or lever, these force-applying end 201 designs are designed to reduce the force required by the user during the disassembly process and improve work efficiency. The combined design enables the tool to adapt to different working environments and disassembly needs, providing greater flexibility. By providing a stable force application point and reducing the risk of slippage, these designs help reduce possible accidents during operation. In summary, these design improvements of the force-applying end 201 make the special disassembly tool for oil pump bearings more user-friendly and improve the efficiency and safety of disassembly work.

[0057] The remaining structures are the same as those of Example 1.

[0058] Example 3

[0059] Reference Figure 1-Figure 6 , which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: a method for using a special disassembly tool for an oil pump bearing, comprising the special disassembly tool for an oil pump bearing, and firstly sleeve a gasket 306 on the side rod 300, then screw a nut 307 on the side rod 300, and slide the side rod 300 along the opening groove 101; firstly align the middle push rod 200 with the central axis of the oil pump, align the circular plate 305 on the side rod 300 with the gap between the inner and outer rings of the bearing, and insert it, then rotate the side plate, and clamp the circular plate 305 in the bearing groove between the inner and outer rings of the bearing; firstly slide the side rod 300 into the inner end of the opening groove 101 and lock the angle, rotate the middle push rod 200, push the oil pump downward, and vice versa, detach the bearing from the oil pump.

[0060] This method describes the use process of a special disassembly tool for oil pump bearings, aiming to provide an efficient and safe bearing disassembly method to reduce equipment downtime and reduce operating risks.

[0061] Tool assembly: a set of special disassembly tools for oil pump bearings, including a side rod 300, a middle push rod 200, a gasket 306, a nut 307 and a side plate.

[0062] Steps:

[0063] 1. Prepare tools and equipment: 1.1. Check the oil pump equipment and confirm that the bearing needs to be replaced. 1.2. Ensure that the special removal tools for the oil pump bearing are intact.

[0064] 2. Assemble the side bar 300: 2.1. Put the gasket 306 on the side bar 300, and ensure that the gasket 306 is in the correct position and will not fall off during operation. 2.2. Tighten the nut 307 on the threaded section 301 on the side bar 300, and ensure that the nut 307 is tightened and will not loosen during operation.

[0065] 3. Position the side rod 300: 3.1. Slide the side rod 300 along the open groove 101 of the oil pump bearing until the round plate 305 of the side rod 300 is aligned with the gap between the inner and outer rings of the bearing. At this time, the gasket 306 and the nut 307 need to be located above the cross plate 100. 3.2. Ensure that the round plate 305 of the side rod 300 is fully inserted into the bearing groove between the inner and outer rings of the bearing.

[0066] 4. Fix the side bar 300: Slide the side bar 300 into the inner end of the open slot 101 and lock its angle to fix the side bar 300, ensuring that the side bar 300 does not move during operation.

[0067] 5. Position the middle push rod 200: Align the middle push rod 200 with the central axis of the oil pump, and ensure that the middle push rod 200 is coaxial with the oil pump shaft to avoid damage to the shaft during operation.

[0068] 6. Clamp the bearing: rotate the side plate so that the circular plate 305 on the side rod 300 rotates and clamps in the bearing groove between the inner and outer rings of the bearing, providing stable support for the disassembly process.

[0069] 7. Disassemble the bearing: Rotate the middle push rod 200 degrees, and use the push force of the push rod to push the oil pump downward to separate the bearing from the oil pump.

[0070] 8. Complete disassembly: Once the bearing is completely out of the oil pump, stop turning the middle push rod 200 and remove the tool from the oil pump.

[0071] 9. Inspection and cleaning: After the bearing is completely disengaged, check the contact surface between the bearing and the oil pump to ensure that there is no damage or residue. Clean the contact surface between the oil pump and the new bearing to prepare for the installation of the new bearing.

[0072] Effect description (1) Improved efficiency: By using special tools, the bearing disassembly process is faster and equipment downtime is reduced. (2) Operational safety: The design of the tool reduces the risk of damage to the oil pump shaft and other components, and improves the safety of operation. (3) Reduced labor intensity: The use of tools simplifies the disassembly process and reduces the labor intensity of operators. (4) Improved accuracy: The precise positioning and fixing mechanism ensures smooth disassembly of the bearing and reduces damage to the bearing. By following the above steps, the special disassembly tool for oil pump bearings can be effectively used to achieve fast and safe bearing replacement, thereby improving the efficiency and quality of maintenance work.

[0073] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only several embodiments are described in detail in this disclosure, it should be easily understood by the personnel referring to this disclosure that many modifications are possible (for example, the size, scale, structure, shape and ratio of various elements, and parameter values ​​(for example, temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method step can be changed or reordered according to the alternative embodiment. Any "device plus function" clause is intended to cover the structure of the execution of the function described in this article, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiment. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0074] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A special disassembly tool for oil pump bearings, characterized by: The invention comprises a transverse plate (100) and a middle push rod (200) screwed on the transverse plate (100), wherein the middle push rod (200) is used to push against the central axis of the oil pump, and detachable side rods (300) are also arranged on both sides of the transverse plate (100), and the side rods (300) are clamped between the inner and outer rings of the bearing.

2. The special disassembly tool for oil pump bearing according to claim 1, characterized in that: Two opening slots (101) are symmetrically arranged on the transverse plate (100), and the two side rods (300) correspond to the two opening slots (101) respectively.

3. The special disassembly tool for oil pump bearing according to claim 2, characterized in that: Each of the side rods (300) comprises, from top to bottom, a threaded section (301), a regular polygonal column section (302), a smooth rod section (303), a thin rod section (304) and a circular plate (305), wherein the circular plate (305) is used to be clamped in a bearing groove between an inner ring and an outer ring of a bearing.

4. The special disassembly tool for oil pump bearing according to claim 3, characterized in that: The cross section of the regular polygon column section (302) of each side rod (300) is a regular polygon, and the inner end of the opening groove (101) is set to be a polygon, and the two parts are matched.

5. The special disassembly tool for oil pump bearing according to claim 4, characterized in that: The outer wall of the middle push rod (200) is provided with a thread, and a screw hole (102) is provided at the center of the cross plate (100), and the middle push rod (200) is screwed into the screw hole (102).

6. The special disassembly tool for oil pump bearing according to claim 5, characterized in that: The length of the middle top rod (200) is greater than or equal to the length of the two side rods (300).

7. The special disassembly tool for oil pump bearing according to claim 6, characterized in that: The upper end of the middle push rod (200) is arranged as a force-applying end (201), which includes a plurality of forms such as a straight groove, a cross groove, a regular polygon, and a through hole.

8. The special disassembly tool for oil pump bearing according to claim 7, characterized in that: A washer (306) and a nut (307) are provided at the upper end of each side rod (300), and the nut (307) is screwed to the threaded section (301).

9. A method for using a special disassembly tool for an oil pump bearing, characterized in that: The invention comprises a special disassembly tool for oil pump bearings according to any one of claims 1 to 8, and First, put the gasket on the side rod, then screw the nut on the side rod, and slide the side rod into the open slot; First, align the middle push rod with the center axis of the oil pump, and insert the round plates of the two side rods between the inner and outer rings of the bearing; Turn the middle push rod to push the oil pump downward, otherwise the bearing will be separated from the oil pump.

10. The method for using the special disassembly tool for oil pump bearings according to claim 9, characterized in that: First, align the circular plate on the side rod with the gap between the inner and outer rings of the bearing and insert it, then rotate the side plate to clamp the circular plate in the bearing groove between the inner and outer rings of the bearing.

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