A mounting tool for a middle bearing of a stirring shaft of a reaction kettle

Abstract

The utility model provides a kind of installation tool for the intermediate bearing of reaction kettle stirring shaft, comprising: body, the body has connecting portion and holding portion, when using, the connecting portion passes through the perforation of reaction kettle and is located inside the reaction kettle, and the holding portion is located outside the reaction kettle;Connecting piece is used to fasten or unscrew intermediate bearing, and the connecting piece is connected with the connecting portion of the body.The utility model provides an installation tool for the intermediate bearing of reaction kettle stirring shaft, the body is set to strip shape, and connecting piece is installed at the front end of body, when it is necessary to install or disassemble intermediate bearing, the front end of body is inserted into reaction kettle, only after intermediate bearing is moved to position, installation tool is used to install, so that intermediate bearing is positioned accurately and cannot be inclined, and stirring shaft also cannot expand with the inner wall of reaction kettle when using, loss is reduced, and the service life of stirring shaft and reaction kettle is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mechanical tooling technology, and in particular to an installation tool for an intermediate bearing of a reactor stirring shaft. Background Technology

[0002] The stirring shaft of the ultra-high pressure polymerization reactor is relatively long. During operation, the stirring shaft may vibrate, which can cause mechanical stress, potentially damaging the equipment, affecting the reaction process, and even disrupting continuous production. Furthermore, prolonged vibration can lead to metal fatigue, causing fractures or even serious accidents. In terms of energy consumption, vibration increases the load on the motor, leading to higher energy consumption. This, in turn, increases maintenance frequency, production interruptions, and reduces efficiency.

[0003] Therefore, the stirring shaft was fixed in sections to prevent damage to the equipment caused by its swinging motion during operation. The sectioned fixing involves installing an intermediate bearing on the stirring shaft, with the outer side of the intermediate bearing secured to the inner wall of the reactor via a support rod. To facilitate the removal and installation of the stirring shaft, the length of the support rod needs to be adjustable. Since the reactor is enclosed, the support rod cannot be controlled electrically or pneumatically. Currently, the intermediate bearing is adjusted directly and then moved from top to bottom. During this movement, the intermediate bearing may tilt, leading to improper positioning or misalignment of the intermediate bearing on the stirring shaft, causing the stirring shaft to collide with the inner wall of the ultra-high pressure polymerization reactor and resulting in damage. Summary of the Invention

[0004] This invention provides an installation tool for the intermediate bearing of a reactor stirring shaft, to solve the technical problem of improper positioning or locking misalignment of the intermediate bearing in existing stirring shafts.

[0005] This utility model provides an installation tool for an intermediate bearing of a reactor stirring shaft, comprising:

[0006] The body has a connecting part and a holding part. In use, the connecting part passes through the perforation of the reactor and is located inside the reactor, while the holding part is located outside the reactor.

[0007] A connector for fastening or loosening the intermediate bearing, the connector being connected to the connecting part of the body.

[0008] In one embodiment of the present invention, a support portion is provided between the holding portion and the connecting portion of the main body, and a support member for supporting the main body is provided on the outer sleeve of the support portion, the outer diameter of the support member being matched with the diameter of the through hole.

[0009] In one embodiment of the present invention, the support member and the support portion are in clearance fit, and the support portion is provided with a limiting member for limiting the support member.

[0010] In one embodiment of the present invention, the limiting member is sleeved on the body, and the limiting member is provided on both sides of the support member.

[0011] In one embodiment of the present invention, a locking hole is provided on the limiting member along the radial direction of the limiting member, and a bolt passes through the locking hole to connect with the supporting part.

[0012] In one embodiment of this utility model, the outer diameter of the limiting member is smaller than the outer diameter of the supporting member.

[0013] In one embodiment of this utility model, the limiting member is a clamp sleeved on the outside of the support portion.

[0014] In one embodiment of this utility model, the holding part is provided with a handle.

[0015] In one embodiment of this utility model, the handle is integrally formed with the body.

[0016] In one embodiment of this utility model, the main body is a telescopic rod.

[0017] The beneficial effects of this utility model are as follows: The utility model proposes an installation tool for an intermediate bearing of a reactor stirring shaft. The main body is designed as a long strip, and a connector is installed at the front end of the main body. When it is necessary to install or remove the intermediate bearing, the front end of the main body extends into the reactor. Only after the intermediate bearing is moved into place is the installation tool used for installation. This ensures that the intermediate bearing is accurately positioned and will not tilt. The stirring shaft will not expand against the inner wall of the reactor during use, reducing losses and extending the service life of the stirring shaft and the reactor. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0019] In the attached diagram:

[0020] Figure 1 A schematic diagram of the structure of the installation tool for the intermediate bearing of the stirring shaft of a reactor provided in this utility model example.

[0021] The attached figures are labeled as follows:

[0022] Body 1, connecting part 11, holding part 12, supporting part 13, connecting piece 2, supporting piece 3, limiting piece 4, handle 5. Detailed Implementation

[0023] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0026] Please see Figure 1 This utility model provides an installation tool for an intermediate bearing of a reactor stirring shaft, comprising a body 1 and a connector 2. The body 1 has a connecting part 11 and a holding part 12. The connecting part 11 has a slender rod-like structure and can pass through a pre-drilled hole in the side wall of the reactor. The holding part 12 is arranged opposite to the connecting part 11. In use, the holding part 12 is located outside the reactor, making it convenient for the operator to grip and apply force.

[0027] Connector 2 is connected to connector 11. The connection between connector 2 and connector 11 can be achieved by bolts, welding, or by a threaded hole in connector 11 and an external thread on connector 2. The end of connector 2 furthest from connector 11 is a fastening head. The structure of the fastening head matches the type of the intermediate bearing fixing bolt and can be used to tighten or loosen the bolt; for example, it can be a sleeve. The installation tool provided in this application has a simple structure and is easy to operate. It can complete the installation and fixing of the intermediate bearing without directly entering the reactor, significantly improving installation efficiency and ensuring operational safety.

[0028] A support portion 13 is provided between the holding portion 12 and the connecting portion 11 of the main body 1. The holding portion 12, the support portion 13 and the connecting portion 11 are integrally formed. The support portion 13 is covered with a support member 3 for supporting the main body 1. The outer diameter of the support member 3 matches the diameter of the through hole.

[0029] In some embodiments, the support 13 is cylindrical and can rotate together with the body 1, and the outer contour of the support 3 matches the perforations provided on the side wall of the reactor. The support 3 can also be semi-circular, with an arc-shaped support channel provided on it.

[0030] In some embodiments, the inner diameter of the support member 3 is clearance-fitted with the outer contour of the support portion 13, so that the support member 3 remains stationary during the rotation of the body 1, thereby providing stable and reliable radial support for the rotating body 1 through the stationary support member 3. To further prevent the support member 3 from moving axially along the support portion 13 during operation, a limiting member 4 is provided on the support portion 13 for limiting the support member 3. The limiting member 4 is fixedly connected to the support portion 13, which can effectively constrain the axial degree of freedom of the support member 3, ensuring that it always performs the support function in the predetermined position, and ensuring the safety and stability of the entire installation process.

[0031] The limiting member 4 can be a boss provided outside the support part 13, or it can be a limiting screw inserted into the support part 13. The limiting member 4 can also be sleeved outside the support part 13, as long as it can axially limit the support part 13. For example, the limiting member 4 can be a snap ring, a lock nut, or a shaft retaining ring.

[0032] In some embodiments, limiting members 4 are provided on both sides of the support member 3 along the axial direction of the body 1. The limiting members 4 are fixedly connected to the support part 13 and rotate together with the body 1. The limiting members 4 and the support member 3 are clearance-fitted, which makes a small gap exist between the rotating limiting members 4 and the stationary support member 3. This effectively prevents the support member 3 from axially moving, while ensuring that the body 1 and the limiting members 4 can rotate freely. The support member 3 remains stationary under the constraint of the reactor perforation, thereby continuously providing stable radial support.

[0033] In some embodiments, since the support member 3 needs to remain stationary to provide stable support, while the limiting member 4 rotates with the body 1, to avoid interference or friction between the rotating limiting member 4 and the reactor wall, the outer diameter of the limiting member 4 is smaller than the outer diameter of the support member 13. In other words, the outer contour of the limiting member 4 should be more inward relative to the outer contour of the support member 13, that is, the outer contour of the limiting member 4 should be closer to the central axis of the body 1 than the outer contour of the support member 13. When the installation tool is in working condition, only the outer wall of the stationary support member 3 contacts the perforated inner wall of the reactor and provides support.

[0034] The support component 3 can be made of rigid plastic, which can both support the main body 1 and provide a certain degree of elasticity, preventing scratches on the perforated surface of the reactor. For example, it can be made of polytetrafluoroethylene.

[0035] In some embodiments, the fixed connection between the limiting member 4 and the support portion 13 can be achieved in various ways. A locking hole can be provided on the limiting member 4, through which a bolt passes to connect with the support portion 13, thereby fixing the limiting member 4. The locking hole is arranged radially along the limiting member 4. Alternatively, the limiting member 4 can be designed as a clamp, directly fitted onto the outside of the support portion 13. The clamp can be designed as an elastic open retaining ring, such as an E-type retaining ring, or as a non-elastic sleeve that needs to be locked with bolts. The clamp, through its own structural characteristics or locking force, grips the support portion 13, thereby achieving efficient axial limiting of the support member 3.

[0036] In some embodiments, a handle 5 is installed on the gripping part 12 to facilitate rotation of the main body 1. The connection between the handle 5 and the gripping part 12 is flexible and varied; it can be a threaded connection for easy disassembly and replacement, or it can be manufactured using a one-piece molding process to achieve higher structural strength and connection reliability. The handle 5 is perpendicular to the gripping part 12, and after being connected to the main body 1, it forms a T-shape. This design allows the operator to apply force with both hands, significantly increasing torque output, improving the efficiency and accuracy of bearing installation, and also helping to maintain the stability of the tool during operation and reduce operator fatigue.

[0037] In some embodiments, the body 1 is a telescopic rod, which is typically composed of multiple rod sections connected by nesting through threads, pin holes, or clamps, allowing for flexible adjustment and reliable locking of the overall length. This enhances the versatility and adaptability of the installation tool, enabling it to match reactors of different depths, capacities, and specifications by adjusting its length, effectively solving the compatibility issues of specialized tools caused by differences in equipment dimensions. Operators can complete the installation of intermediate bearings for the stirring shafts of various reactors using only a single tool, significantly reducing equipment maintenance costs and improving installation efficiency and operational convenience.

[0038] By embedding and supporting the support member 3 within the perforation of the reactor, this component effectively transmits the telescopic rod and its operating torque to the reactor, thus providing stable radial and axial support throughout the installation process. This design not only ensures the overall rigidity of the installation tool in its extended state, effectively preventing swaying and vibration during operation, but also reduces the burden on operators by bearing the load of the reactor wall, while ensuring the installation alignment accuracy of the intermediate bearing of the stirring shaft, ultimately achieving safe, efficient, and precise installation operations.

[0039] Multiple fastening positions are provided at the intermediate bearing outside the stirring shaft of the reactor. When fastening, multiple installation tools can be inserted into the corresponding fastening positions to fasten the intermediate bearing from multiple directions at the same time, which can ensure the accurate positioning of the intermediate bearing.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An installation tool for an intermediate bearing of a reactor stirring shaft, characterized in that, include: The body has a connecting part and a holding part. In use, the connecting part passes through the perforation of the reactor and is located inside the reactor, while the holding part is located outside the reactor. A connector for fastening or loosening the intermediate bearing, the connector being connected to the connecting part of the body.

2. The installation tool for the intermediate bearing of the reactor stirring shaft according to claim 1, characterized in that: A support portion is provided between the gripping portion and the connecting portion. The support portion is covered with a support member for supporting the main body. The outer diameter of the support member matches the diameter of the perforation.

3. The installation tool for the intermediate bearing of the reactor stirring shaft according to claim 2, characterized in that: The support member is clearance-fitted with the support portion, and the support portion is provided with a limiting member for limiting the position of the support member.

4. The installation tool for the intermediate bearing of the reactor stirring shaft according to claim 3, characterized in that: The limiting member is sleeved on the body, and the limiting member is provided on both sides of the support member.

5. The installation tool for the intermediate bearing of the reactor stirring shaft according to claim 3, characterized in that: The limiting member has a locking hole along its radial direction, and the bolt passes through the locking hole to connect with the support part.

6. The installation tool for the intermediate bearing of the reactor stirring shaft according to claim 4, characterized in that: The outer diameter of the limiting member is smaller than the outer diameter of the supporting member.

7. The installation tool for the intermediate bearing of the reactor stirring shaft according to claim 4, characterized in that: The limiting component is a clamp sleeved on the outside of the support part.

8. The installation tool for the intermediate bearing of the reactor stirring shaft according to any one of claims 1-7, characterized in that: The gripping part is provided with a handle.

9. The installation tool for the intermediate bearing of the reactor stirring shaft according to claim 8, characterized in that: The handle is integrally formed with the body.

10. The installation tool for the intermediate bearing of the reactor stirring shaft according to claim 1, characterized in that: The main body is a telescopic rod.

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