An adjustable-pitch gearbox assembly equipment

Abstract

This invention provides an adjustable-pitch gearbox assembly device, comprising a main plate and two sets of adjusting rods. The main plate has a rotating section in the middle and fixed sections at both ends. A rotating rod is mounted within the rotating section on the main plate, and both sets of adjusting rods are sleeved on the rotating rod. Each of the two fixed sections contains a fixing component, which is slidably connected to the main plate and connected to one end of the two adjusting rods on the same side via two sets of linkage rods. A drive unit is mounted on the main plate, and a support platform for supporting the bottom of the gearbox is installed within the rotating section. The device drives the adjusting rods to rotate around the rotating rod. The change in angle between the adjusting rods causes the fixing components to move laterally along the main plate via the linkage rods, thus changing the spacing between the fixing components in the two sets of fixed sections. The gearbox is placed on the support platform and engaged between the fixing components. This device is suitable for positioning gearboxes of different specifications, solving the problem of low efficiency caused by the fixed-pitch positioning structure and the need to replace fixtures for model changes in traditional assembly equipment.

Description

Technical Field

[0001] This utility model belongs to the field of gearbox assembly technology, and more specifically, it relates to a gearbox assembly equipment with adjustable pitch. Background Technology

[0002] Gearbox assembly equipment is a specialized device used to install core gearbox components such as gears, shafts, bearings, and housings inside the gearbox. It effectively secures the gearbox, preventing shifting or shaking during assembly and ensuring the orderly execution of each component's assembly steps. However, gearboxes often come in different housing sizes. To ensure that key assembly references such as bearing seats and shaft holes are aligned with the equipment's actuators during assembly, the assembly equipment needs the ability to adjust the spacing of positioning structures. This ensures precise alignment and stable fixation of the gearbox components during assembly.

[0003] However, traditional assembly equipment often uses a fixed-spacing positioning structure, that is, a dedicated fixed fixture and support component is designed for a single model of gearbox. When different specifications of gearboxes need to be assembled, the old fixtures need to be disassembled manually, the new fixtures need to be replaced, and the positioning reference needs to be recalibrated. This not only increases the labor intensity of manual labor, but also leads to longer equipment downtime, complicated changeover operations, and a significant reduction in production efficiency, making it difficult to adapt to the production needs of small batches and multiple varieties of gearboxes. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an adjustable-spacing gearbox assembly equipment. This solves the technical problem that in the prior art, traditional assembly equipment uses a fixed-spacing positioning structure, which requires manual replacement of fixtures for calibration to adapt to different specifications of gearboxes, resulting in cumbersome changeovers, low efficiency, and difficulty in adapting to small-batch, multi-variety production.

[0005] The purpose and effectiveness of this utility model's adjustable-pitch gearbox assembly equipment are achieved through the following specific technical means:

[0006] An adjustable-pitch gearbox assembly device includes a main plate and two sets of adjusting rods. The middle section of the main plate is configured as a rotating part, and both ends are configured as fixed parts. A rotating rod is provided on the main plate and located inside the rotating part. Both sets of adjusting rods are sleeved on the rotating rod. Each of the two sets of fixed parts is provided with a fixing component. The fixing component is slidably connected to the main plate. The fixing component is connected to one end of the two sets of adjusting rods on the same side through two sets of linkage rods. The fixing component moves laterally along the main plate by changing the angle between the two sets of adjusting rods, and the spacing between the fixing components in the two sets of fixed parts changes accordingly. A driving part is provided on the main plate. A support platform for supporting the bottom of the gearbox is also provided in the rotating part. The gearbox is placed on the support platform and locked between the multiple sets of fixing components.

[0007] According to a preferred embodiment, the two sets of adjusting rods are distributed in a cross pattern, with the cross portion between them sleeved on the rotating rod, rotating about the rotating rod as the central axis; one set of adjusting rods has a slot on its top surface, and the other set of adjusting rods has a slot on its bottom surface, the two sets of adjusting rods are engaged with each other through the slots, and the top surfaces of the two sets of adjusting rods are parallel.

[0008] According to a preferred embodiment, a first rotating ring and a second rotating ring are provided inside the rotating part. The first rotating ring is mounted on one set of the adjusting rods, and the second rotating ring is mounted on the other set of the adjusting rods. The diameter of the first rotating ring is larger than the diameter of the second rotating ring.

[0009] According to a preferred embodiment, the drive unit includes a motor and a rotating gear. A mounting bracket is provided on the main body plate, and the motor is mounted on the mounting bracket. The first rotating ring is provided with an internal gear, and the second rotating ring is provided with an external gear. The rotating gear is mounted on the motor shaft end and is located between the first rotating ring and the second rotating ring, and meshes with the external gear and the internal gear respectively to realize the synchronous rotation of the two sets of adjusting rods.

[0010] According to a preferred embodiment, the fixing component includes a movable platform, a slide rail is provided in the fixing part, the movable platform is slidably connected to the slide rail, and connecting frames are provided at both ends of the bottom of the movable platform. One end of the linkage rod is connected to the adjusting rod, and the other end is connected to the connecting frame. The smaller the included angle between the two sets of adjusting rods, the farther the movable platform is from the rotating part, and the larger the distance between the fixing components in the two sets of fixing parts. The larger the included angle between the two sets of adjusting rods, the closer the movable platform is to the rotating part, and the smaller the distance between the fixing components in the two sets of fixing parts.

[0011] According to a preferred embodiment, the top of the mobile platform is symmetrically provided with contact portions, each contact portion including a rubber block. Two sets of mounting frames are provided on the mobile platform, the rubber blocks are locked in the mounting frames, and contact the gearbox through the rubber blocks.

[0012] According to a preferred embodiment, the fixing component further includes a cylinder, and a mounting plate is provided on the moving platform. The cylinder is mounted on the mounting plate, and a clamping block is provided at the cylinder shaft end. When the cylinder shaft end is in the retracted state, the clamping block is recessed on one side of the two sets of rubber blocks. When the cylinder shaft end is in the extended state, the clamping block is protruding on the other side of the two sets of rubber blocks and contacts the gearbox.

[0013] According to a preferred embodiment, the main body plate is provided with a detachable protective cover, and a movable horizontal plate is provided on the top of the protective cover. Two sets of limiting frames are provided on the movable horizontal plate, and multiple sets of movable wheels are provided at the bottom of the movable platform. The multiple sets of movable wheels are respectively locked in the limiting frames. The movable platform is slidably connected to the movable horizontal plate. Two sets of limiting structures are provided at the bottom of the movable platform and are connected to the movable horizontal plate through the limiting structures. The movable platform is also provided with a pre-clamping structure.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention solves the problem of poor adaptability of traditional assembly equipment's fixed-spacing positioning structure by using a collaborative structure of "two sets of adjusting rods + fixed components + linkage rods." With the rotating part of the main body plate as the core, two sets of adjusting rods are sleeved on the rotating rod to form a rotatable spacing adjustment base. The fixed component is connected to the adjusting rods via the linkage rod and slides with the main body plate. When the drive unit drives the adjusting rods to rotate around the rotating rod, the angle change between the two sets of adjusting rods is transmitted to the fixed component via the linkage rod, causing the fixed component to move synchronously laterally along the main body plate. This achieves the adjustment of the spacing between the fixed components within the two fixed parts—eliminating the need for manual disassembly and fixture replacement, as well as recalibrating the positioning reference. It can adapt to the housing dimensions of gearboxes of different specifications, effectively avoiding the problems of increased manual labor intensity, extended equipment downtime, and cumbersome changeover operations caused by fixture replacement in traditional equipment. It significantly improves the equipment's adaptability to small-batch, multi-variety gearbox production, while ensuring the positioning stability of the gearbox when placed on the support platform and clamped to the fixed component, providing a foundation for subsequent assembly accuracy.

[0016] Two sets of adjusting rods are cross-engaged through slots with parallel top surfaces. In conjunction with the meshing transmission of the first rotating ring, the second rotating ring, and the rotating gear, the adjusting rods can rotate synchronously and smoothly, ensuring consistent displacement during the adjustment of the spacing of the fixing components and avoiding positioning deviations caused by unilateral offset. At the same time, the sliding fit between the moving stage and the slide rail in the fixing components, and the flexible contact design of the rubber block, not only improve the smoothness of the movement of the fixing components, but also avoid damage to the housing caused by hard contact when clamping the gearbox. The cylinder-driven clamping block can further reinforce the initial positioning of the rubber block, forming a dual fixing effect of "flexible positioning + rigid clamping". Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a structural diagram of the fixed components after disassembly;

[0020] Figure 4 yes Figure 2 A magnified view of a portion of region a.

[0021] In the diagram, the correspondence between component names and their corresponding reference numerals is as follows:

[0022] 11. Main body plate; 12. Adjusting rod; 13. Rotating rod; 14. Linkage rod; 15. Support platform; 16. Slot; 17. First rotating ring; 18. Second rotating ring; 19. Motor; 21. Rotating gear; 22. Mounting frame; 23. Moving platform; 24. Slide rail; 25. Connecting frame; 26. Rubber block; 27. Mounting frame;

[0023] 28. Cylinder; 29. ​​Mounting plate; 31. Clamping block; 32. Protective cover; 33. Moving cross plate; 34. Limiting frame. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0025] Example:

[0026] like Figures 1 to 4As shown, this utility model provides an adjustable-pitch gearbox assembly device, including a main plate 11 and two sets of adjusting rods 12. The main plate 11 serves as the basic load-bearing structure of the device, providing an installation reference for each component. Its middle section is set as a rotating part to accommodate the rotating mechanism of the adjusting rods 12. At the same time, the two ends of the main plate 11 are set as fixed parts, with the rotating part located between the two sets of fixed parts. The fixing components are installed in the fixed parts, thereby effectively fixing the gearbox and ensuring the stable position of the gearbox during assembly. This prevents the gearbox from shifting or shaking due to external forces or assembly operations, and ensures that components such as gears, shafts, and bearings can be accurately aligned with the preset assembly position of the gearbox, providing a guarantee for the smooth progress of subsequent assembly processes.

[0027] A rotating rod 13 is provided on the main body plate 11 and located inside the rotating part, serving as the rotation center axis of the adjusting rod 12. Both sets of adjusting rods 12 are sleeved on the rotating rod 13 and can rotate freely around it. Each of the two sets of fixing parts is equipped with a fixing component for clamping gearbox housings of different specifications. The fixing component is slidably connected to the main body plate 11, allowing it to move laterally along the main body plate 11. The fixing component is connected to one end of each of the two sets of adjusting rods 12 on the same side via two sets of linkage rods 14, forming a linkage structure. When the adjusting rod 12 rotates, the fixing component... The gearbox moves laterally along the main body plate 11 by changing the angle between the two sets of adjusting rods 12, and the spacing between the fixing components in the two sets of fixing parts changes accordingly to accommodate gearboxes of different sizes. The main body plate 11 is provided with a drive unit to provide power for the rotation of the adjusting rods 12. The rotating part is also provided with a support platform 15 for supporting the bottom of the gearbox. The support platform 15 provides bottom support for the gearbox and prevents the gearbox from tilting due to gravity during assembly. The gearbox is placed on the support platform 15 and locked between multiple sets of fixing components to achieve stable positioning of the gearbox.

[0028] Two sets of adjusting rods 12 are arranged in a cross pattern. This arrangement allows the movements of the two sets of adjusting rods 12 to be interconnected, ensuring the synchronous movement of the fixed components. The intersection between the two sets is fitted onto the rotating rod 13, which rotates around the rotating rod 13 as the central axis, keeping the rotation trajectory of the adjusting rod 12 stable. One set of adjusting rods 12 has a slot 16 on its top surface, and the other set of adjusting rods 12 has a slot 16 on its bottom surface. The two sets of adjusting rods 12 are engaged with each other through the slots 16. The engagement of the slots 16 restricts the relative displacement of the two sets of adjusting rods 12 in the vertical direction, ensuring that they do not separate during rotation. At the same time, it keeps the top surfaces of the two sets of adjusting rods 12 parallel, providing a unified mounting plane for subsequent connection with the linkage rod 14, ensuring that the direction of force transmission is consistent.

[0029] like Figure 2 , Figure 4As shown, the rotating part is provided with a first rotating ring 17 and a second rotating ring 18. The first rotating ring 17 is mounted on one set of adjusting rods 12 and rotates synchronously with the set of adjusting rods 12. The second rotating ring 18 is mounted on another set of adjusting rods 12 and rotates synchronously with the other set of adjusting rods 12. The diameter of the first rotating ring 17 is larger than the diameter of the second rotating ring 18. This size difference allows the two sets of rotating rings to be distributed on the same axis without interfering with each other, providing a reasonable spatial layout for the gear transmission of the drive part and ensuring that power can be transmitted to the two sets of adjusting rods 12 respectively.

[0030] The drive unit includes a motor 19 and a rotating gear 21. The motor 19 serves as a power source, providing driving force for the entire adjustment mechanism. A mounting bracket 22 is provided on the main body plate 11, providing a stable mounting position for the motor 19 and ensuring that the motor 19 will not shake during operation. The motor 19 is mounted on the mounting bracket 22. The first rotating ring 17 is provided with an internal gear, and the second rotating ring 18 is provided with an external gear. The rotating gear 21 is mounted on the shaft end of the motor 19 and rotates synchronously with the output shaft of the motor 19. The rotating gear 21 is located between the first rotating ring 17 and the second rotating ring 18, and meshes with the external gear and the internal gear respectively. When the motor 19 is working, the rotating gear 21 simultaneously drives the first rotating ring 17 and the second rotating ring 18 to rotate in opposite directions, thereby realizing the synchronous rotation of the two sets of adjustment rods 12 and ensuring the coordination of the fixed component spacing adjustment.

[0031] like Figure 2 , Figure 3 As shown, the fixing assembly includes a movable platform 23, which serves as the main structure of the fixing assembly and is used to install the contact part and clamping mechanism. A slide rail 24 is provided inside the fixing part, providing guidance for the movement of the movable platform 23. The movable platform 23 is slidably connected to the slide rail 24, allowing the movable platform 23 to move smoothly along the slide rail 24 and reducing frictional resistance during movement. Connecting brackets 25 are provided at both ends of the bottom of the movable platform 23, connecting the linkage rod 14 to the movable platform 23. One end of the linkage rod 14 is connected to the adjusting rod. One end is connected to the other end, and the other end is connected to the connecting frame 25, forming a force transmission path. When the included angle between the two sets of adjusting rods 12 decreases, the adjusting rods 12 push the moving platform 23 to move away from the rotating part through the linkage rod 14, thereby increasing the distance between the fixed components in the two sets of fixed parts. When the included angle between the two sets of adjusting rods 12 increases, the adjusting rods 12 pull the moving platform 23 to move closer to the rotating part through the linkage rod 14, thereby decreasing the distance between the fixed components in the two sets of fixed parts, thus adapting to gearbox housings of different widths.

[0032] The top of the moving stage 23 is symmetrically provided with contact parts, which are used to contact the gearbox housing to achieve initial positioning. The contact parts include rubber blocks 26. The rubber blocks 26 have a certain degree of elasticity and can produce slight deformation when in contact with the gearbox, so as to avoid hard compression damage to the gearbox housing. The moving stage 23 is provided with two sets of mounting frames 27. The mounting frames 27 provide mounting positions for the rubber blocks 26 and restrict the displacement of the rubber blocks 26. The rubber blocks 26 are locked in the mounting frames 27 to ensure that the rubber blocks 26 will not fall off during operation, and the contact between the rubber blocks 26 and the gearbox improves the stability of the gearbox positioning.

[0033] The fixing assembly also includes a cylinder 28, which serves as a clamping power source and provides a stable clamping force. A mounting plate 29 is provided on the moving table 23, which provides mounting support for the cylinder 28. The cylinder 28 is mounted on the mounting plate 29 to ensure the stability of the cylinder 28 during operation. A clamping block 31 is provided at the shaft end of the cylinder 28, which directly contacts the gearbox to achieve the clamping action. When the shaft end of the cylinder 28 is in the retracted state, the clamping block 31 is recessed on one side of the two sets of rubber blocks 26 and will not affect the placement of the gearbox. When the shaft end of the cylinder 28 is in the extended state, the clamping block 31 protrudes from the other side of the two sets of rubber blocks 26 and contacts the gearbox, which, together with the rubber blocks 26, clamps the gearbox from both sides, further improving the stability of the gearbox during the assembly process.

[0034] The main body plate 11 is equipped with a detachable protective cover 32. The protective cover 32 can prevent external dust and debris from entering the equipment, reducing contamination and wear on internal components. It also serves as a safety protection, preventing operators from contacting rotating parts. The detachable design facilitates future maintenance and repair of the equipment. A movable cross plate 33 is provided on the top of the protective cover 32, providing auxiliary support for the movement of the moving platform 23. Two sets of limiting frames 34 are provided on the movable cross plate 33, which restrict the movement trajectory of the moving wheels. Multiple sets of moving wheels are provided at the bottom of the moving platform 23, which can reduce the contact between the moving platform 23 and the moving cross plate. Friction between plates 33; multiple sets of moving wheels are respectively locked in the limiting frame 34, so that the moving platform 23 can only move along the direction of the limiting frame 34, further ensuring the linearity of the movement of the moving platform 23. The moving platform 23 is slidably connected to the moving horizontal plate 33. Two sets of limiting structures are set at the bottom of the moving platform 23. The limiting structures can limit the maximum moving distance of the moving platform 23, prevent the moving platform 23 from falling off the slide rail 24 due to excessive movement, and connect to the moving horizontal plate 33 through the limiting structures; the moving platform 23 is also equipped with a pre-clamping structure. The pre-clamping structure can initially fix the gearbox before the cylinder 28 clamps it, which facilitates the smooth progress of the subsequent clamping action.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. An adjustable pitch gearbox assembly assembly apparatus characterized by: The system includes a main plate (11) and two sets of adjusting rods (12). The middle section of the main plate (11) is configured as a rotating part, and the two ends are configured as fixed parts. A rotating rod (13) is provided on the main plate (11) and located inside the rotating part. Both sets of adjusting rods (12) are sleeved on the rotating rods (13). Fixed components are provided in both sets of fixed parts. The fixed components are slidably connected to the main plate (11). The fixed components are connected to one end of the two sets of adjusting rods (12) on the same side through two sets of linkage rods (14). The fixed components move laterally along the main plate (11) through the angle change between the two sets of adjusting rods (12). The distance between the fixed components in the two sets of fixed parts changes accordingly. A driving part is provided on the main plate (11). A support platform (15) for supporting the bottom of the gearbox is also provided in the rotating part. The gearbox is placed on the support platform (15) and locked between multiple sets of fixed components.

2. An adjustable-pitch gearbox assembly rig according to claim 1, characterised in that: Two sets of adjusting rods (12) are distributed in a cross pattern, and the cross part between them is sleeved on the rotating rod (13) and rotates around the rotating rod (13) as the central axis; one set of adjusting rods (12) has a slot (16) on its top surface, and the other set of adjusting rods (12) has a slot (16) on its bottom surface. The two sets of adjusting rods (12) are engaged with each other through the slot (16), and the top surfaces of the two sets of adjusting rods (12) are parallel.

3. An adjustable-pitch gearbox assembly rig as claimed in claim 2, characterised in that: The rotating part is provided with a first rotating ring (17) and a second rotating ring (18). The first rotating ring (17) is installed on one set of the adjusting rods (12), and the second rotating ring (18) is installed on the other set of the adjusting rods (12). The diameter of the first rotating ring (17) is larger than the diameter of the second rotating ring (18).

4. The adjustable-pitch gearbox assembly equipment according to claim 3, characterized in that: The drive unit includes a motor (19) and a rotating gear (21). A mounting bracket (22) is provided on the main body plate (11). The motor (19) is mounted on the mounting bracket (22). The first rotating ring (17) is provided with an internal gear, and the second rotating ring (18) is provided with an external gear. The rotating gear (21) is mounted on the shaft end of the motor (19). The rotating gear (21) is located between the first rotating ring (17) and the second rotating ring (18), and meshes with the external gear and the internal gear respectively, so as to realize the synchronous rotation of the two sets of adjusting rods (12).

5. An adjustable-pitch gearbox assembly rig as claimed in claim 1, wherein: The fixing components include a movable platform (23), a slide rail (24) is provided in the fixing part, the movable platform (23) is slidably connected to the slide rail (24), and a connecting frame (25) is provided at both ends of the bottom of the movable platform (23). One end of the linkage rod (14) is connected to the adjusting rod (12), and the other end is connected to the connecting frame (25). The smaller the angle between the two sets of adjusting rods (12), the farther the movable platform (23) is from the rotating part, and the larger the distance between the fixing components in the two sets of fixing parts. The larger the angle between the two sets of adjusting rods (12), the closer the movable platform (23) is to the rotating part, and the smaller the distance between the fixing components in the two sets of fixing parts.

6. An adjustable-pitch gearbox assembly rig as claimed in claim 5, wherein: The top of the mobile platform (23) is symmetrically provided with contact parts, the contact parts include rubber blocks (26), and two sets of mounting frames (27) are provided on the mobile platform (23). The rubber blocks (26) are locked in the mounting frames (27) and contact the gearbox through the rubber blocks (26).

7. An adjustable-pitch gearbox assembly rig as claimed in claim 6, characterised in that: The fixing component also includes a cylinder (28), and a mounting plate (29) is provided on the moving platform (23). The cylinder (28) is mounted on the mounting plate (29), and a clamping block (31) is provided at the shaft end of the cylinder (28). When the shaft end of the cylinder (28) is in the retracted state, the clamping block (31) is recessed on one side of the two sets of rubber blocks (26). When the shaft end of the cylinder (28) is in the extended state, the clamping block (31) is protruding on the other side of the two sets of rubber blocks (26) and contacts the gearbox.

8. An adjustable-pitch gearbox assembly rig as claimed in claim 7, characterised in that: The main body plate (11) is provided with a detachable protective cover (32), and a movable horizontal plate (33) is provided on the top of the protective cover (32). Two sets of limiting frames (34) are provided on the movable horizontal plate (33). Multiple sets of moving wheels are provided at the bottom of the moving platform (23). The multiple sets of moving wheels are respectively locked in the limiting frames (34). The moving platform (23) is slidably connected to the movable horizontal plate (33). Two sets of limiting structures are provided at the bottom of the moving platform (23) and are connected to the movable horizontal plate (33) through the limiting structures. The moving platform (23) is also provided with a pre-clamping structure.

Images