Turnover assembly frame for small vertical gearbox

Abstract

The utility model relates to the technical field of vertical gear boxes, in particular to a turnover assembly frame for a small vertical gear box, which is used for realizing whole machine turnover and comprises a fixing mechanism for fixing the vertical gear box, the fixing mechanism comprises a fixing plate and a support frame, and the fixing plate is vertically connected to the end part of the support frame. A connecting and leveling mechanism used for installing and leveling the vertical gearbox is arranged on the supporting frame, and the vertical gearbox is detachably connected to the supporting frame through the connecting and leveling mechanism. By implementing the scheme, the assembling process of the vertical gearbox is optimized, and the overall assembling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of vertical gearbox technology, and more specifically to a flip assembly rack for a small vertical gearbox. Background Technology

[0002] In current marine propulsion systems, based on the transmission direction of the transmission components and the installation method of the vertical gearbox, marine vertical gearboxes are mainly divided into two categories: vertical and horizontal. The gear shaft system of a vertical gearbox is perpendicular to the mounting surface, and its two side surfaces are usually irregular in shape, making it impossible for a vertical gearbox to be stably placed horizontally on a plane.

[0003] For large vertical gearboxes, torque arms are often provided on both sides, allowing a dedicated tilting machine to clamp the gearbox and tilt the entire machine, or a crane or gantry crane to lift and tilt the gearbox. However, for small vertical gearboxes, tilting machines or cranes are too large, making them not only wasteful but also requiring more space to accommodate them, which is inconvenient.

[0004] The assembly steps for a small vertical gearbox are as follows: First, the vertical gearbox is adjusted to a horizontal position. However, in the horizontal position, the gearbox body has a raised plate around its circumference, which is currently leveled using shims, making complete leveling very difficult. After leveling, the bearings and rotor are installed in the horizontal position, and testing and adjustments are performed. Then, the rotor and bearings are fixed to the gearbox body using bearing caps or a cover. Next, the vertical gearbox is adjusted to a vertical position, leveled using shims, and then testing is performed, which can only be done in the vertical position. After the vertical testing is completed, it must be switched back to the horizontal position and leveled again. After passing the initial testing, internal components such as oil pipes are assembled, and a second testing is performed. The transport support is in a vertical position, and the vertical gearbox needs to be converted back to a vertical position.

[0005] As can be seen, during the assembly process, the vertical gearbox needs to be frequently flipped from a horizontal position to a vertical position and then back to a horizontal position (at least 4 times, and possibly 6-8 times). Furthermore, each conversion of the vertical gearbox from vertical to horizontal requires rearranging the hoisting process and then re-leveling with shims, making the overall operation cumbersome and inefficient.

[0006] Therefore, this application provides a novel flip assembly rack for small vertical gearboxes, which optimizes the assembly process and improves overall efficiency. Utility Model Content

[0007] The present invention aims to provide a flip assembly bracket for a small vertical gearbox, which solves the problems of cumbersome assembly and low efficiency of existing small vertical gearboxes.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a flip assembly frame for a small vertical gearbox, used to realize the flipping of the whole machine, including a fixing mechanism for fixing the vertical gearbox, the fixing mechanism including a fixing plate and a support frame, the fixing plate being vertically connected to the end of the support frame, the support frame being provided with a connecting leveling mechanism for installing and leveling the vertical gearbox, the vertical gearbox being detachably connected to the support frame through the connecting leveling mechanism.

[0009] The principle and advantages of this scheme are:

[0010] 1. Innovative flipping methods to overcome equipment compatibility challenges:

[0011] Traditional specialized tilting machines, cranes, or gantry cranes used for tilting large vertical gearboxes are ineffective because small vertical gearboxes have protruding plates on both sides that wrap around the gearbox body, lacking torque arms. In contrast, the tilting assembly frame in this solution uses a fixing mechanism consisting of a fixing plate vertically connected to the end of the support frame. This tightly secures the small vertical gearbox, overcoming the limitations of traditional large equipment for tilting small vertical gearboxes and completely solving the problem of poor equipment adaptability.

[0012] 2. Precise and efficient leveling, replacing the traditional pad block method:

[0013] In existing assembly processes, leveling a small vertical gearbox in a horizontal position using shims is extremely difficult. Therefore, this solution addresses this by incorporating a leveling mechanism on the support frame, allowing the vertical gearbox to be detachably connected to the support frame. Compared to traditional shim-based leveling, the leveling mechanism utilizes its precise adjustment mechanism to quickly adjust the gearbox to a horizontal position. Whether for initial positioning before flipping or recalibration after flipping, the leveling mechanism operates efficiently, significantly improving the efficiency and accuracy of leveling.

[0014] 3. Integrate functions and optimize the assembly process:

[0015] Traditional small vertical gearbox assembly requires frequent switching between horizontal and vertical positions, each requiring a complex re-arrangement of lifting procedures and time-consuming leveling with shims. This solution's tilting assembly frame integrates fixing, tilting, and leveling functions. During assembly, the gearbox is first secured to the tilting assembly frame using a fixing mechanism, and then leveled using a connecting leveling mechanism before assembly can begin. When a change of position is needed, the tilting assembly frame easily performs the tilting action, and after tilting, the connecting leveling mechanism quickly restores the gearbox to a horizontal position. The entire process eliminates the need to repeat the complex lifting and leveling procedures of traditional assembly, greatly simplifying the assembly steps, significantly improving assembly efficiency, and providing a strong guarantee for the efficient assembly of small vertical gearboxes.

[0016] 4. The compact structure of the flip-up assembly rack enables efficient use of space and resources:

[0017] Previously, large-scale flipping equipment was used to flip small vertical gearboxes, which was not only bulky and wasteful of resources, but also required a lot of space. This flipping assembly rack adopts a compact structural design, which can achieve the functions of flipping, fixing and leveling small vertical gearboxes while requiring very little space. In the limited space of the assembly workshop, there is no need to reserve a large area for large equipment, which effectively reduces space occupation. At the same time, it avoids the use of large equipment, reduces resource costs such as equipment purchase and maintenance, and achieves efficient use of both space and resources, which meets the needs of modern production for optimized resource allocation.

[0018] Furthermore, the connection and leveling mechanism includes mounting fasteners and jacking bolts. The mounting fasteners are used to fix the vertical gearbox on the support frame, and the jacking bolts are used for assembling and leveling the vertical gearbox.

[0019] Furthermore, the support frame includes two symmetrically arranged support beams, the cross-section of which is I-shaped, and a connecting plate is provided on the fixing plate, with both ends of the connecting plate fixed to the two support beams.

[0020] Furthermore, the web of the support beam is provided with lifting holes near the end for hoisting.

[0021] Furthermore, the end of the fixing plate is provided with a fixing groove for fixing and cooperating with hoisting.

[0022] Furthermore, a support rod is provided between the support beam and the fixed plate, and the support rod, the fixed plate, and the support beam form a triangular structure.

[0023] This solution also has the following beneficial effects:

[0024] 1. Precise and efficient leveling, simple operation: During the assembly of small vertical gearboxes, the height and angle of the gearbox can be finely adjusted by rotating the jacking bolts, achieving precise leveling. When the gearbox is placed horizontally for internal component installation, it can be quickly adjusted to a horizontal state, ensuring the accuracy of the installation of components such as bearings and rotors, avoiding assembly errors caused by uneven mounting surfaces, and improving assembly quality. Furthermore, workers only need to use ordinary tools to rotate the jacking bolts to complete the leveling, without requiring complex equipment or professional skills. Compared with traditional shim leveling, this significantly saves leveling time and improves assembly efficiency. When readjustment is required after a gearbox change of position, the operation can be completed quickly, adapting to the frequent leveling needs during assembly.

[0025] 2. Enhanced structural stability and ease of installation and connection: The support frame consists of two symmetrically arranged support beams with an I-shaped cross-section. The connecting plates on the fixed plate are fixed to the two support beams at both ends, greatly enhancing the load-bearing capacity and stability of the support frame. The I-shaped cross-section effectively distributes the weight of the small vertical gearbox, reducing the risk of deformation of the support beams when bearing the gearbox's weight. During frequent gearbox rotation, the entire rotation assembly frame structure remains stable, providing reliable support for the safe rotation and assembly of the gearbox.

[0026] 3. Convenient overall hoisting: Lifting holes are located near the ends of the support beam web. These holes allow for easy movement of the tilting assembly frame to different work areas or during initial installation, enabling the use of cranes or other equipment for hoisting and improving equipment handling efficiency. The lifting holes also allow for better control of the tilting assembly frame's posture during transport, ensuring safe transport and preventing damage from collisions. Furthermore, the fixing grooves at the ends of the fixing plates can be used to secure small vertical gearboxes, increasing their stability and preventing displacement during tilting. They can also be used in conjunction with hoisting equipment to further ensure the safety and accuracy of the hoisting process.

[0027] 4. Enhanced Overall Rigidity: The support rods installed between the support beam and the fixed plate form a triangular structure with the fixed plate and support beam. This triangular structure provides excellent stability and rigidity, effectively enhancing the structural strength of the entire tilting assembly rack. When tilting the small vertical gearbox, it better resists the torque and impact forces generated during tilting, preventing deformation or damage to the connection between the fixed plate and the support beam. This extends the service life of the tilting assembly rack, ensures stable operation of the equipment under frequent tilting operations, and provides a reliable structural foundation for the efficient assembly of small vertical gearboxes. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of an embodiment of the present utility model.

[0029] Figure 2 for Figure 1 Top view.

[0030] Figure 3 This is a horizontal view of the vertical gearbox according to an embodiment of the present invention.

[0031] Figure 4 This is a vertical state diagram of the vertical gearbox according to an embodiment of the present utility model. Detailed Implementation

[0032] The following detailed description illustrates the specific implementation method:

[0033] The reference numerals in the accompanying drawings include: fixed plate 1, support frame 2, support rod 3, vertical gearbox 4, fixed groove 11, support beam 21, connecting plate 22, lifting hole 23, box body 41, box cover 42, lifting bolt 43, and mounting bolt 44.

[0034] Example 1 is basically as shown in the attached document. Figure 1-4 As shown:

[0035] As attached Figure 1 As shown, a flip assembly frame for a small vertical gearbox is used to achieve the flipping of the entire machine. It includes a fixing mechanism, which includes a fixing plate 1 and a support frame 2. The support frame 2 includes two symmetrically arranged support beams 21. The fixing plate 1 is vertically connected to the ends of the two support beams 21. The vertical gearbox 4 is detachably connected to the support beams 21. A connecting plate 22 is also vertically provided on the fixing plate 1. The two ends of the connecting plate 22 are connected and fixed to the two support beams 21 to enhance the overall rigidity and stability of the structure.

[0036] The support frame 2 is equipped with a connecting and leveling mechanism for installing and leveling the vertical gearbox 4. The connecting and leveling mechanism includes mounting fasteners and lifting bolts 43. The mounting fasteners include mounting bolts 44 and matching washers and nuts. The vertical gearbox 4 is fixed to the support frame 2 by the mounting fasteners. The lifting bolts 43 are used for assembling and leveling the vertical gearbox 43. The mounting bolts 44 and the lifting bolts 43 are installed in opposite directions and are staggered in the plane.

[0037] The cross-section of the support beam 21 is I-shaped, and a lifting hole 23 for hoisting is provided at the end of its web away from the fixed plate 1. The bolt holes that cooperate with the lifting bolt 43 and the mounting bolt 44 are located on the upper flange. The support beam 21 adopts an I-shaped structure, which can ensure the lightest weight while meeting the structural strength required for the flip assembly frame, and can also significantly reduce production costs. The lifting hole 23 facilitates hoisting and improves the overall assembly efficiency.

[0038] A support rod 3 is provided between the support beam 21 and the fixed plate 1. The support rod 3, the fixed plate 1, and the support beam 21 form a stable triangular structure. The support rod 3 optimizes the overall structure and further enhances the structural stability.

[0039] The four corners of the fixing plate 1, avoiding the support beam 21 and support rod 3, are provided with fixing grooves 11 for temporary fixing. The fixing grooves 11 can also be used to cooperate with the lifting holes 23 for hoisting. The structure after the fixing plate 1 and the support frame 2 are connected is roughly U-shaped when viewed from above, as shown in the attached figure. Figure 2 As shown.

[0040] The specific structure of the vertical gearbox 4 will not be described in detail here. In this scheme, the vertical gearbox 4 is simplified to a cover 42 and a body 41. The cover 42 and the body 41 are symmetrically joined. Taking the body 41 as an example, see attached... Figure 4 As shown, threaded holes for mounting bolts 44 are provided on the protruding plates on both sides of the housing 41. The housing 41 is fixedly connected to the support frames 2 on both sides by mounting bolts 44, matching washers, and nuts. The same applies to the cover 42. If the assembly precision inside the vertical gearbox 4 is insufficient, the cover 42 or the housing 41 can be adjusted by lifting bolts 43 to further level the vertical gearbox on the datum of the assembly frame, so that the overall structure can meet higher precision requirements. Detailed implementation method:

[0042] As attached Figure 4 As shown, first, the housing 41 is hoisted onto the support beams 21 on both sides. The position of the housing 41 is adjusted, and the housing 41 is fixed using mounting bolts 44 and nuts. Then, a dial indicator is used in conjunction with the lifting bolts 43 to further level the housing 41. After leveling, the gantry crane is used to hook the lifting hole 23 to lift and rotate the assembly frame, so that the vertical gearbox 4 becomes a horizontal position. The horizontal position is shown in the attached figure. Figure 3 As shown. Then, the bearings and rotor are installed, and the coloring of the gears, sliding bearings, and some thrust bearings in the horizontal position is checked. The axial displacement adjustment is then completed according to the drawings. Finally, the rotor and bearings are fixed to the housing 41 using the bearing cap (a conventional structure, not shown in the figure).

[0043] The gantry crane hooks onto the lifting hole 23 of the support beam 21 and the fixing groove 11 of the fixing plate 1, lifting and flipping the assembly frame to change the vertical gearbox 4 from a horizontal to a vertical position, as shown in the attached figure. Figure 4As shown. The gear coloring and some other tests that can only be performed in a vertical position are inspected. Then, the gantry crane is used to lift and rotate the assembly frame to make the vertical gearbox 4 horizontal. Internal components such as internal oil pipes are assembled, and a second inspection is performed. After all installation and inspection are completed, the assembly frame is rotated back to a vertical position, and the gearbox cover 42 is lifted onto the two side support beams 21. The connection and fixation of the gearbox cover 42 and the gearbox body 41 are completed. The overall installation is shown in the attached figure. Figure 1 As shown, after the inspection is completed, remove all the mounting bolts 44 on the vertical gearbox 4, and then package the installed vertical gearbox 4 for shipment.

[0044] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A roll-over assembly jig for a small vertical gear box for enabling roll-over of the entire machine, characterized in that: The device includes a fixing mechanism for fixing a vertical gearbox. The fixing mechanism includes a fixing plate and a support frame. The fixing plate is vertically connected to the end of the support frame. The support frame is provided with a connecting leveling mechanism for installing and leveling the vertical gearbox. The vertical gearbox is detachably connected to the support frame through the connecting leveling mechanism.

2. A roll-over assembly jig for small vertical gearboxes according to claim 1, characterised in that: The connection and leveling mechanism includes mounting fasteners and jacking bolts. The mounting fasteners are used to fix the vertical gearbox on the support frame, and the jacking bolts are used for assembling and leveling the vertical gearbox.

3. A roll-over assembly jig for a small vertical gear box as claimed in claim 2, wherein: The support frame includes two symmetrically arranged support beams, the cross-section of which is I-shaped. A connecting plate is provided on the fixing plate, and the two ends of the connecting plate are fixed to the two support beams.

4. A roll-over assembly jig for a small vertical gear box as claimed in claim 3, wherein: The web of the support beam has lifting holes near its end for hoisting.

5. A roll-over assembly jig for a small vertical gear box as claimed in claim 4, wherein: The end of the fixing plate is provided with a fixing groove for fixing and cooperating with hoisting.

6. A roll-over assembly jig for a small vertical gear box as claimed in claim 5, wherein: A support rod is provided between the support beam and the fixed plate, and the support rod, the fixed plate, and the support beam form a triangular structure.

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