An aircraft tire carcass building drum expansion device

Abstract

The utility model relates to the technical field of aviation tire body forming drum expansion, especially to an aviation tire body forming drum expansion device, which is provided with linkage mechanism and expansion mechanism, so that the movement of the middle tile is smoother during the expansion of the aviation tire body forming drum, the feeling of abruptness during expansion is reduced, and the processing quality is improved; the device comprises a limiting mechanism; it further comprises multiple sets of supporting mechanisms, multiple sets of expansion mechanisms, a pushing mechanism and multiple sets of linkage mechanisms, the multiple sets of supporting mechanisms are installed on the limiting mechanism, each set of supporting mechanism is provided with a set of expansion mechanism, the pushing mechanism is installed on the limiting mechanism, and the multiple sets of linkage mechanisms are installed on the limiting mechanism; the limiting mechanism is limited, the supporting mechanism is supported, the expansion mechanism is expanded, the pushing mechanism is pushed, and the linkage mechanism is linked.

Description

Technical Field

[0001] This utility model relates to the technical field of aircraft tire carcass forming drum expansion, and in particular to an aircraft tire carcass forming drum expansion device. Background Technology

[0002] The forming drum expansion device is a key piece of equipment in industrial fields such as tire manufacturing and rubber product molding. Its core function is to realize the radial expansion and contraction of the forming drum through mechanical structure to adapt to the molding needs of products of different specifications.

[0003] In existing aircraft tire carcass forming drum expansion devices, such as the tire forming drum disclosed in utility model patent application number 202022474661.1, the utility model has a sliding fit between the guide member of the middle bearing and the guide groove of the side bearing. At the same time, the guide member is embedded in the guide groove, which facilitates the transmission of radial force between the middle bearing and the side bearing. This makes the radial expansion and radial contraction of the middle bearing smoother, and the noise generated during the rotation of the entire tire forming drum is lower. It also reduces the requirements for the use of springs and reduces maintenance costs.

[0004] However, during the expansion process of the tire carcass forming drum, the unidirectional mechanical extrusion pushing the middle bearing can cause it to shift, reducing the processing quality. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an aircraft tire carcass forming drum expansion device, which, by setting a linkage mechanism and an expansion mechanism, makes the movement of the middle bearing smoother during the expansion process of the aircraft tire carcass forming drum, reduces the jerking sensation during expansion, and improves the processing quality.

[0006] This utility model discloses an expansion device for forming a tire carcass of an aircraft tire, including a limiting mechanism; it also includes multiple sets of support mechanisms, multiple sets of expansion mechanisms, a pushing mechanism, and multiple sets of linkage mechanisms. The multiple sets of support mechanisms are installed on the limiting mechanism, and each set of support mechanisms is equipped with a set of expansion mechanisms. The pushing mechanism is installed on the limiting mechanism, and the multiple sets of linkage mechanisms are installed on the limiting mechanism.

[0007] The limiting mechanism provides limitation, the supporting mechanism provides support, the expanding mechanism expands, the pushing mechanism pushes, and the linkage mechanism links. By limiting through the limiting mechanism, driving through the pushing mechanism, and linking through the pushing mechanism to transmit power to the supporting mechanism, the supporting mechanism drives the expanding mechanism. The expanding mechanism then shapes the tire, making the movement of the middle bearing smoother during the expansion of the tire body forming drum, reducing jerking during expansion, and improving processing quality.

[0008] Preferably, the limiting mechanism includes a rotating shaft frame and a limiting frame, with the limiting frame installed inside the rotating shaft frame; the rotating shaft frame works in conjunction with the limiting frame to limit the movement of the equipment.

[0009] Preferably, the support mechanism includes a sliding column and four sets of support rods. The sliding column is slidably mounted on the rotating shaft frame, and the four sets of support rods are rotatably mounted on the sliding column. The sliding column is moved by supporting it with the support rods.

[0010] Preferably, the expansion mechanism includes a middle tile, a first biting shovel, and a second biting shovel. The middle tile is mounted on a sliding column. The first biting shovel is rotatably mounted on the middle tile via a spiral spring. The second biting shovel is rotatably mounted on the middle tile via a spiral spring. Each set of the first biting shovel and the second biting shovel are provided with multiple sets of biting blocks, and the first biting shovel and the second biting shovel in each set are slidably engaged and limited. The middle tile is raised and lowered by the support of the sliding column. After the middle tile moves, the first biting shovel and the second biting shovel are connected and supported by the sliding limit engagement. At the same time, the first biting shovel and the second biting shovel mesh with each other to fill the gap after expansion.

[0011] Preferably, the pushing mechanism includes a pusher and a bearing. The pusher is slidably mounted in the rotating shaft frame and is rotatably connected to two sets of support rods. The bearing is mounted on the pusher. The pusher drives the support rods by driving the pusher. The bearing is connected to the output end of the hydraulic cylinder to facilitate the rotation of the equipment.

[0012] Preferably, the linkage mechanism includes a rack, a rack holder, and a double gear. The rack is mounted on a pusher, the rack holder is slidably mounted on a limiter, and the double gear is rotatably mounted in a rotating shaft frame, with the double gear meshing with both the rack and the rack holder. The rack is moved by the movement of the pusher, which in turn drives the rack to move. As the rack moves, it meshes with the double gear, causing the double gear to rotate. As the double gear rotates, it meshes with the rack holder, causing the rack holder to move and support the support rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by limiting the position through the limiting mechanism, driving through the pushing mechanism, and driving the support mechanism through the linkage mechanism in conjunction with the pushing mechanism, the support mechanism drives the expansion mechanism, and the expansion mechanism shapes the tire body. As a result, during the expansion process of the tire body forming drum, the movement of the middle tile can be smoother, reducing the jerking sensation during expansion and improving the processing quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a first frontal sectional isometric structural schematic diagram of this utility model;

[0016] Figure 3 This is a second frontal sectional isometric structural schematic diagram of this utility model;

[0017] Figure 4 This is a schematic diagram of the left-side cross-sectional axonometric structure of this utility model;

[0018] The attached diagram is labeled as follows: 1. Limiting mechanism; 11. Rotary shaft frame; 12. Limiting frame; 2. Supporting mechanism; 21. Sliding column; 22. Support rod; 3. Expansion mechanism; 31. Middle tile; 32. Engaging shovel one; 33. Engaging shovel two; 4. Pushing mechanism; 41. Push frame; 42. Bearing; 5. Linkage mechanism; 51. Rack; 52. Rack frame; 53. Double gear. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] Example 1

[0021] like Figures 1 to 4 As shown, an expansion device for forming a tire carcass includes a limiting mechanism 1, as well as multiple sets of support mechanisms 2, multiple sets of expansion mechanisms 3, a pushing mechanism 4, and multiple sets of linkage mechanisms 5. The multiple sets of support mechanisms 2 are installed on the limiting mechanism 1, and each set of support mechanisms 2 is equipped with a set of expansion mechanisms 3. The pushing mechanism 4 is installed on the limiting mechanism 1, and the multiple sets of linkage mechanisms 5 are installed on the limiting mechanism 1.

[0022] The limiting mechanism 1 limits the movement, the supporting mechanism 2 provides support, the expanding mechanism 3 expands, the pushing mechanism 4 pushes, and the linkage mechanism 5 performs linkage.

[0023] The limiting mechanism 1 includes a rotating shaft frame 11 and a limiting frame 12, with the limiting frame 12 installed inside the rotating shaft frame 11;

[0024] The support mechanism 2 includes a sliding column 21 and four sets of support rods 22. The sliding column 21 is slidably mounted on the rotating shaft frame 11, and the four sets of support rods 22 are rotatably mounted on the sliding column 21.

[0025] The expansion mechanism 3 includes a middle tile 31, a first biting shovel 32, and a second biting shovel 33. The middle tile 31 is mounted on the sliding column 21. The first biting shovel 32 is rotatably mounted on the middle tile 31 via a spiral spring. The second biting shovel 33 is rotatably mounted on the middle tile 31 via a spiral spring. Each set of the first biting shovel 32 and the second biting shovel 33 is provided with multiple sets of biting blocks, and the first biting shovel 32 and the second biting shovel 33 in each set are slidably engaged and limited.

[0026] The pushing mechanism 4 includes a push frame 41 and a bearing 42. The push frame 41 is slidably installed in the rotating shaft frame 11 and is rotatably connected to two sets of support rods 22. The bearing 42 is installed on the push frame 41.

[0027] The linkage mechanism 5 includes a rack 51, a rack frame 52, and a double gear 53. The rack 51 is mounted on the push frame 41, the rack frame 52 is slidably mounted on the limit frame 12, and the double gear 53 is rotatably mounted in the rotating shaft frame 11. The double gear 53 meshes with both the rack 51 and the rack frame 52.

[0028] The equipment is limited by the rotating shaft frame 11 and the limiting frame 12. The push frame 41 is driven to drive the support rod 22. The bearing 42 is connected to the output end of the hydraulic cylinder to facilitate the rotation of the equipment. The movement of the push frame 41 transmits power to the rack 51, causing the rack 51 to move. While the rack 51 moves, it meshes with the double gear 53, causing the double gear 53 to rotate. While the double gear 53 rotates, it meshes with the rack frame 52, causing the rack frame 52 to move and support the support rod 22. The support rod 22 supports the sliding column 21, causing the sliding column 21 to move. The sliding column 21 supports the middle bearing 31, causing the middle bearing 31 to rise and fall. After the middle bearing 31 moves, the first biting shovel 32 and the second biting shovel 33 are connected and supported by sliding limit cooperation. At the same time, the first biting shovel 32 and the second biting shovel 33 mesh with each other to fill the gap after expansion. Thus, during the expansion of the aircraft tire carcass forming drum, the movement of the middle bearing can be smoother, reducing the sense of jerking during expansion and improving the processing quality.

[0029] like Figures 1 to 4 As shown, this utility model discloses an expansion device for forming an aviation tire carcass. During operation, the device is limited by a rotating shaft frame 11 and a limiting frame 12. A pusher frame 41 drives a support rod 22. A bearing 42 connects to the output end of a hydraulic cylinder to facilitate rotation. The movement of the pusher frame 41 transmits power to a rack 51, causing it to move. Simultaneously, the rack 51 meshes with a double gear 53, causing it to rotate. The double gear 53, in turn, meshes with a rack frame 52, moving the rack frame 52 to support the support rod 22. The support rod 22 then supports a sliding column 21, causing it to move. The sliding column 21 supports a middle bearing 31, causing it to rise and fall. After the middle bearing 31 moves, the first and second biting shovels 32 and 33 are connected and supported through a sliding limiting mechanism. Simultaneously, the first and second biting shovels 32 and 33 mesh with each other to compensate for gaps after expansion.

[0030] The main function achieved by this utility model is: during the expansion process of the aircraft tire carcass forming drum, by setting up a linkage mechanism and an expansion mechanism, the movement of the middle bearing can be made smoother during the expansion process, reducing the jerking sensation during expansion and improving the processing quality.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An expansion device for an aircraft tire carcass forming drum, comprising a limiting mechanism (1); characterized in that, It also includes multiple sets of support mechanisms (2), multiple sets of expansion mechanisms (3), a driving mechanism (4) and multiple sets of linkage mechanisms (5). Multiple sets of support mechanisms (2) are installed on the limiting mechanism (1). Each set of support mechanisms (2) is equipped with a set of expansion mechanisms (3). The driving mechanism (4) is installed on the limiting mechanism (1). Multiple sets of linkage mechanisms (5) are installed on the limiting mechanism (1). The limiting mechanism (1) limits the position, the supporting mechanism (2) provides support, the expanding mechanism (3) expands the position, the pushing mechanism (4) pushes the position, and the linkage mechanism (5) links the positions.

2. The aircraft tire carcass forming drum expansion device as described in claim 1, characterized in that, The limiting mechanism (1) includes a rotating shaft frame (11) and a limiting frame (12), with the limiting frame (12) installed inside the rotating shaft frame (11).

3. The aircraft tire carcass forming drum expansion device as described in claim 2, characterized in that, The support mechanism (2) includes a sliding column (21) and four sets of support rods (22). The sliding column (21) is slidably mounted on the rotating shaft frame (11), and the four sets of support rods (22) are rotatably mounted on the sliding column (21).

4. The aircraft tire carcass forming drum expansion device as described in claim 3, characterized in that, The expansion mechanism (3) includes a middle tile (31), a first biting shovel (32) and a second biting shovel (33). The middle tile (31) is mounted on a sliding column (21). The first biting shovel (32) is rotatably mounted on the middle tile (31) by a spiral spring. The second biting shovel (33) is rotatably mounted on the middle tile (31) by a spiral spring. Each set of the first biting shovel (32) and the second biting shovel (33) is provided with multiple sets of biting blocks, and the first biting shovel (32) and the second biting shovel (33) between each set are slidably engaged and limited.

5. The aircraft tire carcass forming drum expansion device as described in claim 3, characterized in that, The pushing mechanism (4) includes a push frame (41) and a bearing (42). The push frame (41) is slidably installed in the rotating shaft frame (11), and the push frame (41) is rotatably connected to two sets of support rods (22). The bearing (42) is installed on the push frame (41).

6. The aircraft tire carcass forming drum expansion device as described in claim 5, characterized in that, The linkage mechanism (5) includes a rack (51), a rack frame (52), and a double gear (53). The rack (51) is mounted on the push frame (41), the rack frame (52) is slidably mounted on the limit frame (12), and the double gear (53) is rotatably mounted in the rotating shaft frame (11). The double gear (53) meshes with both the rack (51) and the rack frame (52).

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