Anti-over-positioning winding drum connecting device

Abstract

The utility model discloses an anti-over-positioning winding drum connecting device. In order to solve the technical problem that extra radial force or bending moment can be generated in the rotating movement process due to the fact that an over-positioning phenomenon occurs in a winding drum and a speed reducer in the prior art, the device comprises a fixing part and a contact part, the fixing part is in a circular ring shape, a first connecting part is arranged on the fixing part, and a second connecting part is arranged on the contact part. The fixed part is provided with a first connecting part, the fixed part is fixedly connected with a winding drum through the first connecting part, the contact part is vertically connected with an inner ring of the fixed part, the contact part is in a cylindrical surface shape, a second connecting part is arranged on the inner surface of the contact part, and the contact part is connected with a speed reducer through the second connecting part. Relatively flexible installation is achieved by designing a specific connection mode between the winding drum and the speed reducer, compensation of assembly errors is facilitated, mechanical stress caused by non-concentricity is reduced, the winding drum can adapt to offset to a certain degree, and therefore stability and reliability of the whole system are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tower cranes, and in particular relates to an anti-over-positioning drum connection device. Background Art

[0002] Tower cranes are a type of lifting equipment widely used in construction, cargo loading and unloading, and other applications. They offer high lifting heights and a wide working range, enabling efficient vertical and horizontal transportation of construction materials and other heavy objects. Tower cranes use an electric motor to drive a winch to lift loads, and a luffing mechanism to adjust the boom angle and operating radius. Furthermore, a slewing mechanism allows the boom to rotate to the desired position, providing full coverage of the working area.

[0003] In existing technology, the reducer and drum are essential components of tower cranes. The reducer drives the drum, ensuring smooth lifting and lowering of loads. In the design of the reducer-drum connection, the connecting flange and reducer ring gear are combined into a single component. A self-aligning bearing is installed in the drum's left bearing seat to mitigate potential axis misalignment.

[0004] The existing technology has the following technical problems:

[0005] 1. Because the connecting flange and reducer ring gear are combined into one part, the relative position between the two is fixed once installed. If there are errors in the manufacturing process of the drum or reducer, or if perfect concentricity is not achieved during assembly, this rigid connection will lead to over-positioning, that is, there may be eccentricity between the drum and the reducer. When there is eccentricity, additional radial force or bending moment will be generated during the rotational movement. These forces will be directly transmitted to the bearings in the reducer, increasing their workload and accelerating the wear process of the bearings. It will also have an adverse effect on the seals inside and outside the reducer, reducing the sealing effect, increasing maintenance costs and potentially causing leakage problems.

[0006] 2. Since the drum and reducer are completely fixed, the self-aligning bearing cannot actually fully play its adjustment role. Utility Model Content

[0007] In view of the fact that the drum and reducer in the above-mentioned prior art may be over-positioned, resulting in additional radial force or bending moment during the rotational movement, these forces will be directly transmitted to the bearings in the reducer, increasing their workload, accelerating the wear process of the bearings, and adversely affecting the seals inside and outside the reducer, reducing the sealing effect, increasing maintenance costs and possibly causing leakage; and the technical problem that the self-aligning bearing cannot actually fully play its adjustment role because the drum and reducer are completely fixed, the utility model provides an anti-over-positioning drum connection device.

[0008] The technical solutions adopted in this utility model are as follows:

[0009] A device for connecting a reel to prevent over-positioning comprises: a fixing part and a contact part, wherein the fixing part is in the shape of a circular ring, a first connecting part is provided on the fixing part, and the reel is fixedly connected to the fixing part through the first connecting part, the contact part is vertically connected to the inner ring of the fixing part, the contact part is in the shape of a cylindrical surface, a second connecting part is provided on the inner surface of the contact part, and the reel is connected to the reducer through the second connecting part.

[0010] By adopting the above technical solution, the beneficial effects of the utility model are as follows: the utility model realizes relatively flexible installation through a specific connection method between the reel and the reducer, which helps to compensate for assembly errors, reduce mechanical stress caused by eccentricity, and can adapt to a certain degree of offset, thereby improving the stability and reliability of the overall system.

[0011] Furthermore, the first connecting portion is a first threaded hole, and the reel is provided with a second threaded hole at a position corresponding to the first threaded hole.

[0012] By adopting the above technical solution, the beneficial effects of the present invention are as follows: the present invention can provide a stable and reliable connection by using threaded holes in combination with fixing bolts, and is also easy to disassemble and maintain, thereby improving operational convenience.

[0013] Furthermore, there are multiple first threaded holes, and the multiple first threaded holes are evenly arranged on the fixing portion.

[0014] By adopting the above technical solution, the beneficial effects of the present invention are: the multiple evenly distributed first threaded holes of the present invention can better disperse the fixing force, making the connection more uniform and stable, reducing the pressure concentration phenomenon at a single connection point, and enhancing the overall rigidity and stability of the structure.

[0015] Furthermore, the plurality of first threaded holes are evenly arranged at points with the same radius and with the center of the fixing portion as the center of the circle.

[0016] By adopting the above technical solution, the beneficial effects of the present invention are as follows: the present invention ensures balanced force at each connection point through a circular layout, avoids local deformation or damage caused by uneven force, and further improves the safety factor and service life of the entire connection structure.

[0017] Furthermore, the second connecting portion is connected to the reducer by contact connection.

[0018] By adopting the above technical solution, the beneficial effects of the utility model are as follows: the utility model adopts contact connection rather than traditional rigid connection, allowing a certain relative movement between the reducer and the reel, which can absorb vibration and alleviate impact to a certain extent, and at the same time play the role of automatic centering to maintain the smooth operation of the transmission system.

[0019] Furthermore, the second connecting portion is a contact gear ring, and a spherical gear is provided at a corresponding position of the reducer.

[0020] By adopting the above technical solution, the beneficial effects of the utility model are as follows: the utility model not only ensures sufficient torque transmission capability through the cooperation between the contact ring gear and the spherical gear, but also can automatically adjust the centering when a small displacement occurs between the two, effectively solving the problem of non-concentricity caused by processing or assembly errors, reducing additional mechanical stress, and improving the working efficiency and durability of the equipment.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] 1. The utility model realizes relatively flexible installation through a specific connection method between the reel and the reducer, which helps to compensate for assembly errors, reduce mechanical stress caused by non-concentricity, and can adapt to a certain degree of offset, thereby improving the stability and reliability of the overall system.

[0023] 2. The utility model uses threaded holes in combination with fixing bolts to provide a stable and reliable connection, while also facilitating disassembly and maintenance, thereby improving operational convenience.

[0024] 3. The multiple evenly distributed first threaded holes of the present invention can better disperse the fixing force, making the connection more uniform and stable, reducing the pressure concentration phenomenon at a single connection point, and enhancing the overall rigidity and stability of the structure.

[0025] 4. The utility model ensures balanced force at each connection point through a circular layout, avoids local deformation or damage caused by uneven force, and further improves the safety factor and service life of the entire connection structure.

[0026] 5. The utility model adopts contact connection instead of traditional rigid connection, allowing a certain relative movement between the reducer and the drum, which can absorb vibration and alleviate impact to a certain extent, and at the same time play the role of automatic centering to maintain the smooth operation of the transmission system.

[0027] 6. The utility model not only ensures sufficient torque transmission capacity through the cooperation between the contact ring gear and the spherical gear, but also can automatically adjust the centering when a small displacement occurs between the two, effectively solving the problem of non-concentricity caused by processing or assembly errors, reducing additional mechanical stress, and improving the working efficiency and durability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort, among which:

[0029] Figure 1 This is a structural diagram of an anti-over-positioning reel connection device provided according to an embodiment of the present utility model;

[0030] Figure 2 yes Figure 1 Front view of ;

[0031] Figure 3 This is an overall schematic diagram of an anti-over-positioning reel connection device provided according to an embodiment of the present utility model;

[0032] Figure 4 yes Figure 3 Front view of ;

[0033] Reference numerals: 1. fixing portion; 101. first threaded hole; 2. contact portion; 201. contact gear ring; 3. reel. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0036] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0037] The features and performance of the present invention are further described in detail below with reference to the embodiments.

[0038] like Figure 1-Figure 4 As shown, an anti-over-positioning reel 3 connection device provided by an embodiment of the utility model includes: a fixing part 1 and a contact part 2, the fixing part 1 is annular, a first connection part is provided on the fixing part 1, and the first connection part is fixedly connected to the reel 3, the contact part 2 is vertically connected to the inner ring of the fixing part 1, the contact part 2 is cylindrical, and a second connection part is provided on the inner surface of the contact part 2, and the second connection part is connected to the reducer.

[0039] Among them, the utility model realizes relatively flexible installation through a specific connection method between the reel 3 and the reducer, which helps to compensate for assembly errors, reduce mechanical stress caused by eccentricity, and can adapt to a certain degree of offset, thereby improving the stability and reliability of the overall system.

[0040] Optionally, the first connecting portion is a first threaded hole 101 , and the reel 3 is provided with a second threaded hole at a position corresponding to the first threaded hole 101 .

[0041] In this embodiment, the connecting device is fixed to the reel 3 by passing a fixing bolt through the first threaded hole 101 and the second threaded hole.

[0042] Among them, the utility model uses a threaded hole in combination with a fixing bolt to provide a stable and reliable connection, while also facilitating disassembly and maintenance, thereby improving operational convenience.

[0043] Optionally, there are multiple first threaded holes 101 , and the multiple first threaded holes 101 are evenly arranged on the fixing portion 1 .

[0044] Among them, the multiple evenly distributed first threaded holes 101 of the present invention can better disperse the fixing force, making the connection more uniform and stable, reducing the pressure concentration phenomenon at a single connection point, and enhancing the overall rigidity and stability of the structure.

[0045] Optionally, the plurality of first threaded holes 101 are evenly arranged at points with the same radius and with the center of the fixing portion 1 as the center of the circle.

[0046] Among them, the utility model ensures balanced force at each connection point through a circular layout, avoids local deformation or damage caused by uneven force, and further improves the safety factor and service life of the entire connection structure.

[0047] Optionally, the second connecting portion is connected to the reducer by contact connection.

[0048] Among them, the utility model adopts contact connection rather than traditional rigid connection, allowing a certain relative movement between the reducer and the reel 3, which can absorb vibration and alleviate impact to a certain extent, and at the same time play the role of automatic centering to maintain the smooth operation of the transmission system.

[0049] Optionally, the second connecting portion is a contact gear ring 201, and a spherical gear is provided at a corresponding position of the reducer.

[0050] Among them, the utility model not only ensures sufficient torque transmission capability through the cooperation between the contact ring gear 201 and the spherical gear, but also can automatically adjust the centering when a small displacement occurs between the two, effectively solving the problem of non-concentricity caused by processing or assembly errors, reducing additional mechanical stress, and improving the working efficiency and durability of the equipment.

[0051] The anti-over-positioning reel connection device provided by this utility model is suitable for various reel devices that require a speed reducer to drive the reel, particularly in applications where smooth operation, reduced vibration, and extended service life are crucial. Examples include: industrial cranes: winches for lifting heavy objects; papermaking: reels in paper winding equipment; steelmaking: reels on steel plate winding lines; port machinery: winch systems in container loading and unloading equipment; and construction: winches in tower cranes and other construction machinery.

[0052] These application scenarios usually need to handle large loads and have strict requirements on equipment reliability and ease of maintenance.

[0053] How it works

[0054] Connection between the fixing part 1 and the reel 3:

[0055] The fixing portion 1 is designed as a circular ring structure with multiple first threaded holes 101 evenly distributed at the same radius around the center of the fixing portion 1. Second threaded holes are also provided at corresponding locations on the reel 3. Fixing bolts are passed through the first and second threaded holes to securely attach the fixing portion 1 to the reel 3. This multi-point fixing arrangement ensures connection stability and uniform force distribution, avoiding localized stress concentration.

[0056] Connection between contact part 2 and reducer:

[0057] The contact portion 2 is perpendicularly connected to the inner ring of the fixed portion 1 and is cylindrical in shape. Its inner surface is provided with a second connecting portion, designed in the form of a contact ring gear 201. A spherical gear is located in the corresponding position of the reducer. When the reducer output shaft rotates, the spherical gear meshes with the contact ring gear 201, transmitting torque.

[0058] Heart-regulating effect:

[0059] Because the contact ring gear 201 is cylindrical and the spherical gear of the reducer has a certain curvature, the contact between the two allows for angular deviation within a certain range. This means that even if there is slight misalignment or deviation between the drum 3 and the reducer, they can automatically adjust to a relatively ideal working state, thus acting similarly to a self-aligning bearing and reducing the additional stress caused by misalignment.

[0060] Lubrication and sealing:

[0061] Internal gears and contact surfaces are lubricated with grease to minimize friction between transmission components, improve efficiency, and protect parts from wear. O-rings are used at both ends to prevent lubricant leakage and block the ingress of foreign matter, ensuring a good working environment.

[0062] Overall stability:

[0063] The design of the entire connection mechanism allows for a certain degree of flexibility between the drum 3 and the reducer while still enabling efficient power transmission. This design can absorb and mitigate misalignment caused by machining errors or improper assembly, reducing system vibration, improving operational smoothness, and helping to extend the service life of the entire transmission system.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-over-positioning reel connection device, characterized in that: The invention comprises: a fixing part and a contact part, wherein the fixing part is in an annular shape, a first connecting part is provided on the fixing part, and the fixing part is fixedly connected to the reel through the first connecting part, the contact part is vertically connected to the inner ring of the fixing part, the contact part is in a cylindrical shape, a second connecting part is provided on the inner surface of the contact part, and the reducer is connected through the second connecting part.

2. The anti-over-positioning reel connection device according to claim 1, characterized in that: The first connecting portion is a first threaded hole, and the reel is provided with a second threaded hole at a position corresponding to the first threaded hole.

3. The anti-over-positioning reel connection device according to claim 2, characterized in that: There are multiple first threaded holes, and the multiple first threaded holes are evenly arranged on the fixing portion.

4. The anti-over-positioning reel connection device according to claim 3, characterized in that: The plurality of first threaded holes are evenly arranged at points with the same radius and with the center of the fixing portion as the center of the circle.

5. The anti-over-positioning reel connection device according to claim 1, characterized in that: The second connecting portion is connected to the reducer in a contact connection manner.

6. The anti-over-positioning reel connection device according to claim 5, characterized in that: The second connecting portion is a contact gear ring, and a spherical gear is provided at a corresponding position of the reducer.

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