A turning gear for an air compressor

Abstract

The utility model discloses a kind of turning gear tools of air compressor, including two arc snap rings of symmetrical arrangement, two arc snap rings both ends are formed circular snap ring by bolt connection, wherein the middle of each arc snap ring is threadedly connected with limiting top pin, and the outer wall of arc snap ring on the both sides of limiting top pin is fixedly provided with handle. The utility model realizes radial fixation by arc snap ring tightly embracing coupling outer wall, limiting top pin is inserted into keyway and is tightly contacted bottom to realize circumferential positioning, double fixation ensures firm and reliable connection, effectively avoids the thread damage and deformation caused by traditional prying bolt mode, protects the structural integrity of coupling, prolongs equipment service life;Top pin and keyway cooperation prevent skidding, significantly improve the operation safety;Symmetrical handle makes force uniform and saves effort, so that turning operation is simple and efficient.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically to a turning tool for an air compressor. Background Technology

[0002] An air compressor is a device that compresses air. The compressed air is mainly used for fuel atomization and combustion, material dispersion and conveying, equipment purging, and driving pneumatic equipment. To ensure the continuity and reliability of equipment operation, a backup air compressor is usually provided. When the main air compressor fails or needs maintenance, the backup air compressor can be put into operation in time. However, because the backup air compressor has been out of use for a long time, its internal rotating parts, such as rotors and bearings, may experience problems such as uneven distribution of lubricating oil, local deformation due to stress, or slight adhesion due to long-term static placement. This can lead to the risk of jamming, increased vibration, or even damage when the equipment is started in an emergency. To avoid such problems, it is necessary to perform a manual rotation operation on the backup air compressor. This involves manually or with the aid of tools slowly rotating the compressor's main shaft to ensure that the rotor system is evenly stressed, maintain lubrication, and prevent component deformation and corrosion.

[0003] Currently, the common practice on-site is to directly pry the connecting bolts on the air compressor coupling with a steel chisel to achieve rotational rotation. While this method is simple and direct, it has many drawbacks. Because the steel chisel and the bolts are in point or line contact, the threads of the coupling bolts are easily damaged, the heads are worn, or they are deformed during the application of force. Long-term use will not only reduce the mechanical strength of the bolts and affect the reliability of the coupling connection, but may also lead to the need to replace the entire coupling assembly due to bolt damage, increasing maintenance costs and downtime. At the same time, using a steel chisel to pry is time-consuming and labor-intensive, requiring a high level of skill from the operator. Improper force can easily cause personnel to slip or tools to come out, leading to safety accidents. It is also difficult to ensure the uniformity and consistency of the rotation angle each time, affecting the rotational rotation effect. In addition, this method lacks a dedicated positioning and anti-slip structure, and there is a risk of tool slippage and equipment damage during operation. Summary of the Invention

[0004] In view of the shortcomings of existing turning gears that rely on steel chisels to pry bolts, which are prone to damage to equipment, laborious, unsafe, and prone to non-standard operation, this utility model provides a turning gear tool that is labor-saving, safe, easy to operate, does not easily damage the compressor, and is convenient to use.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A turning tool for an air compressor includes two symmetrically arranged arc-shaped retaining rings. Both ends of the two arc-shaped retaining rings are connected by bolts to form circular retaining rings. Each arc-shaped retaining ring has a limit screw threaded to its middle, and handles are fixedly provided on the outer walls of the arc-shaped retaining rings on both sides of the limit screw.

[0006] To use, align the two arc-shaped retaining rings and fit them onto the outer wall of the air compressor coupling, then insert the end of the set screw into the keyway of the coupling. Tighten the arc-shaped retaining rings with bolts to form a circular retaining ring. Next, move the limiting set screw so that its end abuts against the bottom of the keyway, and then fix the limiting set screw to achieve circumferential fixation of the coupling's side. The connection is now complete. After that, hold both handles with both hands and rotate them simultaneously to drive the coupling to rotate and complete the rotation. After rotation, loosen the bolts to remove the tool.

[0007] Furthermore, the arc-shaped retaining ring has a set screw hole in the middle, and the set screw hole has an internal thread; the set screw has an external thread that mates with the internal thread. In use, by rotating the limiting set screw, its external thread mates with the internal thread of the set screw hole in the middle of the arc-shaped retaining ring, driving the set screw to move axially until the end of the set screw is inserted into the keyway of the coupling and abuts against the bottom, achieving precise circumferential positioning and reliable locking; this structure achieves smooth feeding and precise adjustment of the limiting set screw through thread engagement, ensuring a tight fit between the set screw and the keyway, effectively preventing tool loosening or slippage during rotation, enhancing the stability and safety of the connection, while the self-locking characteristic of the thread makes the set screw less likely to retract under force, ensuring the reliability of the rotation process.

[0008] Furthermore, the set screw hole has a diameter of 12mm and is internally tapped with M10 threads; the set screw is made of M10×50mm high-strength bolt. The 12mm diameter set screw hole with M10 threads, when used with the set screw made of M10×50mm high-strength bolt, ensures smooth installation and a secure connection. The M10 thread provides sufficient engagement strength, reliable axial adjustment force, and self-locking performance. The 50mm length ensures ample stroke, facilitating the set screw's insertion into the keyway and tightening. The high-strength material can withstand the turning reaction force, is not easily deformed or stripped, ensures reliable limit positioning, and improves the overall safety and durability of the tool.

[0009] Furthermore, the end of the set screw is also provided with a spherical connecting block. During use, rotating the limiting set screw moves the spherical connecting block at its end, causing the spherical connecting block to abut against the bottom of the coupling keyway. Self-adaptive fit is achieved through spherical contact. The spherical connecting block forms point contact with the bottom of the keyway and has multi-directional adjustment capabilities, automatically adapting to minor dimensional deviations or installation angle errors in the keyway. This ensures uniform force on the set screw, effectively avoiding keyway damage caused by localized stress concentration, while also ensuring reliable tightening of the limiting set screw at different angles, improving connection stability.

[0010] Furthermore, a silicone sleeve is fitted around the outer side of the spherical connecting block. During use, the silicone sleeve, along with the spherical connecting block, abuts against the keyway of the coupling, relying on its elasticity to achieve a tight fit and provide cushioning. The silicone sleeve enhances the friction between the set screw and the keyway, preventing slippage, avoiding direct metal-to-metal contact that could damage the keyway, protecting the coupling surface, and is also oil-resistant and wear-resistant, adapting to the field environment, and improving the safety and durability of the tool.

[0011] Furthermore, the arc radius of the arc-shaped retaining ring matches the outer circumference of the air compressor coupling, and the arc angle is 180°. This 180° arc radius ensures that the two retaining rings, when engaged, can completely fit against the outer wall of the coupling, increasing the contact area, improving clamping force and connection stability. This ensures that the tool is not easily loosened or shifted after installation, that the force is evenly distributed, effectively preventing slippage, and facilitating quick on-site alignment and installation, thus improving the reliability of manual rotation operations.

[0012] Furthermore, the arc-shaped retaining ring is made of 5mm thick high-strength steel plate, and each end of the arc-shaped retaining ring has two 8mm diameter bolt holes with a hole spacing of 30mm, which facilitates the positioning and connection of the two arc-shaped retaining rings. The arc-shaped retaining ring, made of 5mm thick high-strength steel plate, has sufficient strength and rigidity to withstand the torque and impact force during turning, and is not easily deformed or damaged. The two 8mm diameter bolt holes at each end facilitate symmetrical connection of the two bolts, improving installation stability and positioning accuracy, preventing loosening, ensuring a firm connection between the two retaining rings, and making the overall structure reliable, durable, and suitable for frequent use.

[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. This utility model achieves radial fixation by using an arc-shaped retaining ring to clamp the outer wall of the coupling, and circumferential positioning by inserting a limiting set screw into the keyway and pressing against the bottom. This double fixation ensures a firm and reliable connection, effectively avoiding thread damage and deformation caused by traditional prying bolts, protecting the structural integrity of the coupling, and extending the service life of the equipment. The fit between the set screw and the keyway prevents slippage, significantly improving operational safety. The symmetrically arranged handles ensure even and effortless force application, making the rotation operation simple and efficient.

[0014] 2. This utility model achieves radial fixation by fitting an arc-shaped retaining ring against the outer wall of the coupling, and achieves circumferential locking by using a limiting set screw, a spherical connecting block, and a silicone sleeve inserted into the keyway. The dual positioning ensures a firm connection and prevents slippage. The thread adjustment is precise and reliable, and the silicone sleeve protects the keyway and enhances friction. The overall structure has high strength, uniform stress distribution, and is easy and safe to operate, effectively avoiding damage to the equipment and improving the efficiency and standardization of the rotating gear. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a turning tool for an air compressor according to this utility model.

[0016] Figure 2 This is a schematic diagram of the specific structure of the fiber top screw of the turning tool for an air compressor according to this utility model.

[0017] Attached image labels: Arc-shaped retaining ring-1, limit screw-2, ball-shaped connecting block-21, handle-3, air compressor coupling-4, keyway-41. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Example 1: A turning tool for an air compressor includes two symmetrically arranged arc-shaped retaining rings 1. Both ends of the two arc-shaped retaining rings 1 are connected by bolts to form circular retaining rings. Each arc-shaped retaining ring 1 has a limiting screw 2 threadedly connected to its middle, and handles 3 are fixedly provided on the outer walls of the arc-shaped retaining rings 1 on both sides of the limiting screw 2.

[0020] In use, align the two arc-shaped retaining rings 1 and fit them onto the outer wall of the air compressor coupling 4, and insert the end of the limiting screw 2 into the keyway 41 of the air compressor coupling 4. Then, tighten the arc-shaped retaining rings 1 with bolts to form a circular retaining ring. Next, move the limiting screw 2 so that its end abuts against the bottom of the keyway 41, and then fix the limiting screw 2 to achieve circumferential fixation of the side of the air compressor coupling 4. The connection is now complete. After that, hold the two handles 3 with both hands and rotate them simultaneously to drive the air compressor coupling 4 to rotate and complete the rotation. After the rotation is completed, loosen the bolts to remove the tool.

[0021] Example 2: Unlike Example 1, the arc-shaped retaining ring 1 has a set screw hole in the middle with an internal thread; the limiting set screw 2 has an external thread that mates with the internal thread. In use, rotating the limiting set screw 2 causes its external thread to engage with the internal thread of the set screw hole in the middle of the arc-shaped retaining ring 1, moving the limiting set screw 2 axially until its end inserts into the keyway 41 of the air compressor coupling 4 and abuts against the bottom, achieving precise circumferential positioning and reliable locking. This structure achieves smooth feeding and precise adjustment of the limiting set screw 2 through threaded engagement, ensuring a tight fit between the limiting set screw 2 and the keyway 41, effectively preventing tool loosening or slippage during rotation, enhancing connection stability and safety. Simultaneously, the self-locking characteristic of the thread makes the limiting set screw 2 less prone to retraction under force, ensuring the reliability of the rotation process.

[0022] The arc radius of the arc-shaped retainer 1 matches the outer radius of the air compressor coupling 4, and the arc angle is 180°. This 180° arc radius ensures that the two arc-shaped retainers 1, when engaged, can completely fit against the outer wall of the air compressor coupling 4, increasing the contact area, improving clamping force and connection stability. This ensures that the tool is not easily loosened or shifted after installation, that the force is evenly distributed, effectively preventing slippage, and facilitating quick on-site alignment and installation, thus improving the reliability of manual rotation operations.

[0023] The arc-shaped retaining ring 1 is made of 5mm thick high-strength steel plate, and each end of the arc-shaped retaining ring 1 has two 8mm diameter bolt holes with a hole spacing of 30mm, which facilitates the positioning and connection of the two arc-shaped retaining rings 1. The arc-shaped retaining ring 1 is made of 5mm thick high-strength steel plate, which has sufficient strength and rigidity to withstand the torque and impact force during turning, and is not easily deformed or damaged; the two 8mm diameter bolt holes at each end facilitate the symmetrical connection of the two bolts, improve the stability and positioning accuracy of the installation, prevent loosening, ensure that the two arc-shaped retaining rings 1 are firmly connected, and make the overall structure reliable, durable and suitable for frequent use.

[0024] Example 3: The difference from Example 2 is that the diameter of the set screw hole is 12mm, with an internal M10 thread; the limiting set screw 2 is made of a high-strength M10×50mm bolt. The 12mm diameter set screw hole, with an internal M10 thread, mates smoothly with the limiting set screw 2 made of an M10×50mm high-strength bolt, ensuring a secure connection. The M10 thread provides sufficient engagement strength, reliable axial adjustment force, and self-locking performance. The 50mm length ensures ample stroke, facilitating the insertion and tightening of the limiting set screw 2 into the keyway 41. The high-strength material can withstand the turning reaction force, preventing deformation or stripping, ensuring reliable limiting and improving the overall safety and durability of the tool.

[0025] The limiting screw 2 is also provided with a spherical connecting block 21 at its end. In use, rotating the limiting screw 2 moves the spherical connecting block 21 at its end, so that the spherical connecting block 21 abuts against the bottom of the keyway 41 of the air compressor coupling 4. Self-adaptive fit is achieved through spherical contact. The spherical connecting block 21 and the bottom of the keyway 41 form point contact and have multi-directional adjustment capability. It can automatically adapt to the small dimensional deviations or installation angle errors of the keyway 41, ensuring that the limiting screw 2 is subjected to uniform force, effectively avoiding damage to the keyway 41 caused by local stress concentration, and ensuring that the limiting screw 2 can be reliably tightened at different angles, thus improving the stability of the connection.

[0026] A silicone sleeve is also fitted on the outside of the spherical connecting block 21. During use, the silicone sleeve, together with the spherical connecting block 21, abuts against the keyway 41 of the air compressor coupling 4, relying on its elasticity to achieve a tight fit and provide cushioning; the silicone sleeve enhances the friction between the limiting screw 2 and the keyway 41, preventing slippage, avoiding direct metal contact that could damage the keyway 41, protecting the surface of the air compressor coupling 4, and is also oil-resistant and wear-resistant, adaptable to the on-site environment, and improving the safety and durability of the tool.

[0027] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A turning tool for an air compressor, characterized in that: It includes two symmetrically arranged arc-shaped retaining rings (1), both ends of which are connected by bolts to form a circular retaining ring. Each arc-shaped retaining ring (1) has a limit screw (2) threaded in the middle, and the outer wall of the arc-shaped retaining ring (1) on both sides of the limit screw (2) is fixedly provided with a handle (3).

2. A turning gear for an air compressor as defined in claim 1, wherein: The arc-shaped retaining ring (1) has a set screw hole in the middle, and the set screw hole has an internal thread; the limiting set screw (2) has an external thread that mates with the internal thread.

3. A turning gear for an air compressor as defined in claim 2 wherein: The diameter of the set screw hole is 12mm, and it is internally tapped with M10 thread; the limiting set screw (2) is a high-strength bolt of M10×50mm.

4. A turning gear for an air compressor as claimed in either of claims 2 or 3 wherein: The end of the limiting screw (2) is also provided with a spherical connecting block (21).

5. The turning tool for an air compressor as described in claim 4, characterized in that: The spherical connecting block (21) is also fitted with a silicone sleeve on its outer side.

6. The turning tool for an air compressor as described in claim 1, characterized in that: The arc radius of the arc-shaped retaining ring (1) matches the outer circumference of the air compressor coupling (4), and the arc is 180°.

7. The turning tool for an air compressor as described in claim 1, characterized in that: The arc-shaped retaining ring (1) is made of high-strength steel plate with a thickness of 5mm, and two bolt holes with a diameter of 8mm are reserved at both ends of the arc-shaped retaining ring (1), with a hole spacing of 30mm, which facilitates the positioning and connection of the two arc-shaped retaining rings (1).

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