Novel combined tool suitable for repairing cylinder diameter of reciprocating compressor cylinder

Abstract

The utility model discloses a novel combination tool suitable for reciprocating compressor cylinder diameter repair, which comprises a fixing frame, an adjusting mechanism is arranged on the fixing frame, a motor seat is arranged on one side of the fixing frame, a linear driving motor is arranged on the motor seat, a screw rod is arranged at the driving end of the linear driving motor, and a screw rod is arranged at the driving end of the screw rod. One end of the screw rod is rotationally connected with the fixing frame, a pair of guide rails is arranged on the two sides of the screw rod, and the two ends of the pair of guide rails are connected with the motor base and the fixing frame respectively. The device is composed of a fixing frame, an adjusting mechanism, a linear driving motor, a lead screw, a guide rail, a movable base, a boring assembly or a honing assembly and the like, the whole device is convenient to transfer, tools can be delivered to all compressor operation sites in advance before an owner plans to overhaul a compressor, geographical limitation is avoided, and the flexibility of repairing work is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of reciprocating compressor repair tools, specifically a novel combination tool suitable for repairing the cylinder diameter of a reciprocating compressor. Background Technology

[0002] In the petrochemical industry, reciprocating compressors are key pieces of equipment, and cylinder bore wear is a common problem. Once the cylinder bore wears down, the current conventional repair method is to remove the cylinder and return it to the manufacturer. This process involves multiple steps, including cylinder disassembly, transportation, repair at the manufacturer, re-transportation, and reassembly, and has many drawbacks:

[0003] Geographical limitations and lack of flexibility: Repairs rely on equipment such as boring machines, lathes, or honing machines that are fixed at the manufacturing plant. This equipment cannot be moved to the owner's site, which means that the repair work must be carried out at the manufacturing plant, thus limiting the flexibility of the repair work.

[0004] Long repair cycle: The operation of multiple stages prolongs the entire repair cycle, seriously affecting the owner's normal production and operation activities, and thus causing the owner significant economic losses.

[0005] High repair costs: In addition to the cost of the repair itself, there are additional costs involved, such as cylinder disassembly, two transportations, and reassembly, resulting in high overall repair costs.

[0006] Therefore, developing a technology and tools that can repair the cylinder bore at the compressor owner's site without disassembling the cylinder is of great practical significance. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a novel combination tool suitable for repairing the cylinder diameter of reciprocating compressors, solving the problem that existing compressor repairs require shutdown and disassembly, which is time-consuming and labor-intensive.

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: A novel combination tool suitable for repairing the cylinder diameter of a reciprocating compressor, comprising a fixed frame, an adjustment mechanism on the fixed frame, a motor base on one side of the fixed frame, a linear drive motor on the motor base, a lead screw mounted on the drive end of the linear drive motor, one end of the lead screw being rotatably connected to the fixed frame, a pair of guide rails on both sides of the lead screw, the two ends of the pair of guide rails being respectively connected to the motor base and the fixed frame, and a movable seat slidably mounted on the pair of guide rails and screwed to the lead screw, wherein a boring component or a honing component can be mounted on the movable seat.

[0009] Preferably, the adjustment mechanism includes a pair of elongated holes arranged longitudinally on the fixed frame, a first connecting frame is provided on one side of the pair of elongated holes, a second connecting frame connected to the fixed frame is provided below the first connecting frame, and a plurality of bolt holes are provided on both sides of the first connecting frame and the second connecting frame. The bolt holes on one side of the first connecting frame are connected to the elongated holes by bolts, and the bolt holes on the other side are connected to the cylinder by bolts.

[0010] Preferably, the boring assembly includes a first rotary motor and a support rod. The first rotary motor is mounted on the movable base. A boring bar is movably mounted on the support rod. One end of the boring bar is connected to the drive end of the first rotary motor. A boring bar holder is provided on the boring bar, and a boring tool is provided on the boring bar holder.

[0011] Preferably, the support rod is provided with a support seat, which is located at the cylinder packing hole position.

[0012] Preferably, the honing assembly includes a second rotary motor mounted on the movable base, a honing rod mounted on the second rotary motor, a hinge compensation mechanism at one end of the honing rod, and a honing head mounted at one end of the hinge compensation mechanism.

[0013] Preferably, the hinge compensation mechanism is composed of multiple universal joints that are hinged sequentially.

[0014] Preferably, the abrasive of the honing head is made of polytetrafluoroethylene.

[0015] Beneficial effects

[0016] This utility model provides a novel combination tool suitable for repairing the cylinder bore of a reciprocating compressor, which has the following beneficial effects:

[0017] The novel combination tool provided by this invention has a simple structure, consisting of a fixed frame, an adjustment mechanism, a linear drive motor, a lead screw, a guide rail, a moving base, and boring or honing components. The whole tool is easy to transport, and can be shipped to the compressor operation site in advance before the owner plans to repair the compressor, thus eliminating geographical limitations and greatly improving the flexibility of repair work.

[0018] The traditional repair process has been optimized, eliminating the need to disassemble the cylinder and transport it back and forth. The repair can be carried out directly on-site using this combination tool. The drive mechanism enables precise movement of the boring or honing components, quickly completing the boring and honing repair of the cylinder diameter. This effectively shortens the repair cycle of the compressor cylinder diameter, allowing the compressor to return to normal operation more quickly and improving the owner's direct economic benefits.

[0019] The adjustment mechanism, connected by bolts through a long slot, a first connecting bracket, and a second connecting bracket, allows for adjustment of the center coordinates of the boring bar or honing head, ensuring that the form and position tolerances of the cylinder diameter remain almost unchanged after repair. In the boring assembly, the support rod and support seat mate at the cylinder packing hole position, providing effective support for the boring bar, improving its working stability, and ensuring the surface finish of the cylinder diameter after boring. The hinge compensation mechanism in the honing assembly consists of multiple sequentially hinged universal joints, ensuring that the honing head moves with the shape of the cylinder diameter's inner wall without altering its form and position tolerances. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention when a boring assembly is used.

[0021] Figure 2 This is a cross-sectional view of the present invention when a boring assembly is used.

[0022] Figure 3 This is a schematic diagram of the structure of the present invention when a honing assembly is used.

[0023] Figure 4 This is a cross-sectional view of the structure of the present invention when the honing assembly is used.

[0024] In the diagram: 1. Fixed frame; 2. Linear drive motor; 3. Lead screw; 4. Guide rail; 5. Moving seat; 6. Long slot; 7. First connecting frame; 8. Second connecting frame; 9. First rotary motor; 10. Support rod; 11. Boring tool bar; 12. Boring tool holder; 13. Second rotary motor; 14. Hinge compensation mechanism; 15. Support seat; 16. Honing head. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-4This utility model provides a technical solution: a novel combination tool suitable for repairing the cylinder diameter of a reciprocating compressor, including a fixed frame 1, an adjustment mechanism on the fixed frame 1, a motor base on one side of the fixed frame 1, a linear drive motor 2 on the motor base, a lead screw 3 mounted on the drive end of the linear drive motor 2, one end of the lead screw 3 being rotatably connected to the fixed frame 1, a pair of guide rails 4 on both sides of the lead screw 3, the two ends of the pair of guide rails 4 being connected to the motor base and the fixed frame 1 respectively, and a movable seat 5 slidably mounted on the pair of guide rails 4 and screwed to the lead screw 3, the movable seat 5 being able to be equipped with a boring component or a honing component.

[0027] By adopting the above technical solution, the fixed frame 1 provides a support structure for the entire tool, the adjustment mechanism is used to connect the fixed frame 1 to the cylinder and adjust its position, the linear drive motor 2 is mounted on the motor base and drives the lead screw 3 to rotate, the lead screw 3 is screwed to the moving seat 5 so that the moving seat 5 can move linearly along the guide rail 4, and boring components or honing components can be installed on the moving seat 5 according to the repair needs.

[0028] In this embodiment, the adjustment mechanism includes a pair of elongated holes 6 arranged longitudinally on the fixed frame 1. A first connecting frame 7 is provided on one side of the pair of elongated holes 6. A second connecting frame 8 connected to the fixed frame 1 is provided below the first connecting frame 7. Several bolt holes are provided on both sides of the first connecting frame 7 and the second connecting frame 8. The bolt holes on one side of the first connecting frame 7 are connected to the elongated holes 6 by bolts, and the bolt holes on the other side are connected to the cylinder by bolts.

[0029] By adopting the above technical solution, the relative position of the first connecting frame 7 and the fixed frame 1 can be adjusted using the elongated hole 6. Then, the first connecting frame 7 and the second connecting frame 8 are connected to the cylinder via bolt holes on the other side, achieving a stable connection between the fixed frame 1 and the cylinder. Furthermore, the center coordinates of the boring or honing components can be adjusted, making the tool suitable for various cylinder sizes and enhancing its versatility. Simultaneously, by adjusting the center coordinates, the dimensional and positional tolerances of the repaired cylinder diameter are ensured to meet requirements, improving repair accuracy.

[0030] In this embodiment, the boring assembly includes a first rotary motor 9 and a support rod 10. The first rotary motor 9 is mounted on the movable seat 5. A boring bar 11 is movably mounted on the support rod 10. One end of the boring bar 11 is connected to the drive end of the first rotary motor 9. A boring bar holder 12 is provided on the boring bar 11, and a boring tool is provided on the boring bar holder 12.

[0031] By adopting the above technical solution, the first rotary motor 9 of the boring assembly is mounted on the movable base 5, driving the boring bar 11 to rotate. The boring bar holder 12 on the boring bar 11 fixes the boring tool. With the cooperation of the first rotary motor 9 and the linear drive motor 2, the boring tool rotates while moving forward linearly to bore the cylinder diameter.

[0032] In this embodiment, the support rod 10 is provided with a support seat 15, which is located at the cylinder packing hole position.

[0033] By adopting the above technical solution, a support seat 15 is set at the position of the cylinder packing hole, which cooperates with the support rod 10 to support the boring bar 11 and enhance the stability of the boring bar 11 during operation.

[0034] In this embodiment, the honing assembly includes a second rotary motor 13 mounted on the movable seat 5. The second rotary motor 13 is provided with a honing rod. One end of the honing rod is provided with a hinge compensation mechanism 14, and one end of the hinge compensation mechanism 14 is equipped with a honing head 16.

[0035] By adopting the above technical solution, the second rotary motor 13 of the honing assembly is installed on the movable seat 5 to drive the honing rod to rotate. One end of the honing rod is connected to the honing head 16 through the hinge compensation mechanism 14. The linear drive motor 2 drives the movable seat 5, so that the honing head 16 rotates on its own axis and moves back and forth in a linear motion to hone the cylinder diameter surface.

[0036] In this embodiment, the hinge compensation mechanism 14 is further configured to consist of multiple universal joints that are hinged sequentially.

[0037] By adopting the above technical solution, the chain compensation mechanism is composed of multiple universal joints that are hinged in sequence. It can flexibly adapt to changes in the shape of the inner wall of the cylinder diameter, ensuring that the honing head 16 always has good contact with the inner wall of the cylinder diameter during the honing process, and does not change the form and position tolerance of the cylinder diameter.

[0038] In this embodiment, the abrasive of the honing head 16 is made of polytetrafluoroethylene.

[0039] By adopting the above technical solution, the honing head 16 uses polytetrafluoroethylene abrasive. Compared with traditional oilstones, when honing in a horizontally placed cylinder, it will not damage the cylinder diameter surface due to particle shedding. Although the grinding time may be longer, the safety and reliability are higher.

[0040] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process.

[0041] Example: Before compressor overhaul, the new combination tool is transported to the site in advance. According to the cylinder specifications, the bolt connection method of the adjustment mechanism is used to connect and fix the fixed frame 1 to the cylinder through the long strip hole 6 on the fixed frame 1 and the bolt holes of the first and second connecting frames 8, so as to ensure that the linear drive motor 2, lead screw 3, guide rail 4 and motor base and other drive mechanisms are firmly installed.

[0042] The boring assembly is installed on the moving seat 5. The support seat 15 and the support rod 10 are installed at the cylinder filling hole position to provide support for the boring bar 11 and ensure the stability of the boring bar 11 during the boring process. The first rotary motor 9 drives the boring bar 11 to rotate, and at the same time the linear drive motor 2 drives the lead screw 3, so that the moving seat 5 drives the boring bar 11 to rotate and move forward linearly along the guide rail 4, removing the pits and grooves of the cylinder bore wear, so that the cylinder bore is rounded.

[0043] After boring, the honing assembly is installed on the movable base 5. The second rotary motor 13 is started to rotate the honing rod. The linear drive motor 2 drives the movable base 5 through the lead screw 3. Under the control of limit switches, control cabinet and other electrical components, the honing head 16 rotates on its own axis and moves back and forth in a linear motion. The hinge compensation mechanism 14 is composed of multiple universal joints that are hinged in sequence to ensure that the honing head 16 moves with the shape of the inner wall of the cylinder diameter, honing the surface of the bored cylinder diameter to achieve the surface roughness required by the design drawings. Since the honing head 16 uses polytetrafluoroethylene abrasive, it can ensure safety and reliability when honing a horizontally placed cylinder.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel combination tool suitable for repairing the cylinder bore of a reciprocating compressor, characterized in that, The device includes a fixed frame (1), an adjustment mechanism, a motor base on one side of the fixed frame (1), a linear drive motor (2) on the motor base, a lead screw (3) on the drive end of the linear drive motor (2), one end of the lead screw (3) being rotatably connected to the fixed frame (1), a pair of guide rails (4) on both sides of the lead screw (3), the two ends of the pair of guide rails (4) being connected to the motor base and the fixed frame (1) respectively, and a movable seat (5) slidably connected to the lead screw (3) on the pair of guide rails (4), and a boring component or a honing component can be installed on the movable seat (5).

2. A novel combination tool for repairing the cylinder diameter of a reciprocating compressor according to claim 1, characterized in that, The adjustment mechanism includes a pair of elongated holes (6) arranged longitudinally on the fixed frame (1). A first connecting frame (7) is provided on one side of the pair of elongated holes (6). A second connecting frame (8) connected to the fixed frame (1) is provided below the first connecting frame (7). Several bolt holes are provided on both sides of the first connecting frame (7) and the second connecting frame (8). The bolt holes on one side of the first connecting frame (7) are connected to the elongated holes (6) by bolts, and the bolt holes on the other side are connected to the cylinder by bolts.

3. A novel combination tool for repairing the cylinder diameter of a reciprocating compressor according to claim 2, characterized in that, The boring assembly includes a first rotary motor (9) and a support rod (10). The first rotary motor (9) is mounted on the movable seat (5). A boring bar (11) is movably mounted on the support rod (10). One end of the boring bar (11) is connected to the drive end of the first rotary motor (9). A boring bar holder (12) is provided on the boring bar (11), and a boring tool is provided on the boring bar holder (12).

4. A novel combination tool for repairing the cylinder diameter of a reciprocating compressor according to claim 3, characterized in that, The support rod (10) is provided with a support seat (15), which is located at the cylinder packing hole position.

5. A novel combination tool for repairing the cylinder diameter of a reciprocating compressor according to claim 2, characterized in that, The honing assembly includes a second rotary motor (13) mounted on the movable base (5), a honing rod on the second rotary motor (13), a hinge compensation mechanism (14) at one end of the honing rod, and a honing head (16) mounted at one end of the hinge compensation mechanism (14).

6. A novel combination tool for repairing the cylinder diameter of a reciprocating compressor according to claim 5, characterized in that, The hinge compensation mechanism (14) is composed of multiple universal joints that are hinged sequentially.

7. A novel combination tool for repairing the cylinder diameter of a reciprocating compressor according to claim 5, characterized in that, The abrasive of the honing head (16) is made of polytetrafluoroethylene.

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