Novel bending device for air suspension bearing

Abstract

The utility model discloses a novel bending device of an air suspension bearing, which comprises a base, a lower module is fixedly arranged on the base, an upper module and a driving mechanism for controlling the upper module to ascend and descend are arranged at the upper end of the base, and a working space matched with the bending shape of a foil is formed between the upper module and the lower module. One end of the working space is a foil inlet end, a limiting mechanism with an adjustable limiting position is arranged at the other end of the working space, through the design of the adjustable limiting mechanism, the bending requirements of foils of different length specifications can be met, the universality is high, compared with a traditional fixed tool, the tool replacement frequency is reduced, and the equipment utilization rate is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field of suspension bearing bending equipment, and in particular to a novel bending device for air suspension bearings. Background Technology

[0002] In modern industry, air-bearing blowers are widely used in many key sectors such as wastewater treatment and pneumatic conveying due to their significant advantages such as high efficiency, energy saving, and low noise. During the operation of an air-bearing blower, the bearing, as a core component, supports the rotor to achieve high-speed and stable operation by forming an air film. Its performance directly determines the reliability and stability of the blower's operation.

[0003] The bearing needs to form a specific petal-shaped structure within the bearing housing, and this structure requires bending the bearing foil using a bending machine. For example, patent CN 209363365 U discloses a bending fixture for hydrodynamic bearings, including a mold base plate. The mold base plate is provided with support columns and vertical top plate guide columns. A vertically movable mold top plate is fitted onto the top plate guide columns. A first positioning plate is provided on the support columns, and a second positioning clamping plate is provided on the mold top plate. The first positioning plate has a stepped groove on the side facing the second positioning clamping plate, and a gap is left between the second positioning clamping plate and the mold top plate for the foil to pass through. The fixture is designed specifically for bending the foil of hydrodynamic air bearings. Through the stepped groove of the first positioning plate and the design of the mold top plate, the foil can be bent quickly, saving time, and achieving high precision and improved yield.

[0004] However, the aforementioned bending machine has significant limitations. The structural dimensions of components such as the positioning plate and clamping plate are relatively fixed, making it difficult to flexibly adjust for foils of different sizes. This results in poor versatility. In actual production, when dealing with air suspension bearing foils of various specifications, it is necessary to frequently change tooling or readjust the equipment, which not only increases production costs but also reduces production efficiency. Utility Model Content

[0005] Purpose of the invention: The purpose of this utility model is to provide a novel bending device for air suspension bearings. Through the design of an adjustable limiting mechanism, it can adapt to the bending requirements of foil sheets of different lengths and specifications, has strong versatility, and reduces the frequency of tooling changes compared with traditional fixed tooling, thus significantly improving equipment utilization.

[0006] Technical solution:

[0007] A novel bending device for an air suspension bearing includes a base, a lower module fixedly mounted on the base, an upper module and a drive mechanism for controlling the lifting and lowering of the upper module at the upper end of the base, and a working space matching the bending shape of a foil formed between the upper module and the lower module. One end of the working space is the foil inlet end, and the other end is provided with a limit mechanism with adjustable limit position.

[0008] Furthermore, the lower module includes a bending platform and a bending groove disposed in the middle of the bending platform, and the upper module includes a movable seat that is connected to the drive mechanism and a V-shaped bending head disposed at the lower end of the movable seat.

[0009] Furthermore, the drive mechanism includes a rotating handle connected to a gear, the gear meshing with a rack, and the rack being fixedly connected to the upper module.

[0010] Furthermore, the limiting mechanism includes a fixed block, which has a threaded groove and a sliding groove. The fixed block is slidably connected to a stop block through the sliding groove. The stop block is rotatably connected to a threaded rod, which is threadedly connected to the threaded groove. One end of the threaded rod is rotatably connected to the stop block, and the other end passes through the threaded groove and is fixedly connected to a control handle.

[0011] Furthermore, the stop extends to the upper end of the bending platform, and the lower end of the stop is flush with the surface of the bending platform, thus avoiding the movement path of the upper module.

[0012] Furthermore, the upper module is connected to a spring-back mechanism.

[0013] Furthermore, the spring-rebound mechanism includes a spring with one end fixedly connected to the movable seat, and the other end of the spring fixed to the base.

[0014] Furthermore, threaded holes are vertically opened at both ends of the movable seat, and threaded blocks are threadedly connected to the threaded holes. The lower end of the threaded blocks is fixedly connected to the spring.

[0015] Beneficial effects: This device, with its adjustable limit mechanism, can adapt to the bending requirements of foil sheets of different lengths and specifications. It is highly versatile and reduces the frequency of tooling changes compared to traditional fixed tooling, thus significantly improving equipment utilization. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is an enlarged view of the present invention;

[0019] Figure 4 This is an enlarged perspective view of the limiting mechanism of this utility model. Detailed Implementation

[0020] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figure 1-4 As shown, a novel bending device for an air suspension bearing includes a base 1, on which a lower module 2 is fixedly mounted. An upper module 3 and a drive mechanism 4 for controlling the lifting and lowering of the upper module are located at the upper end of the base. A working space is formed between the upper module 3 and the lower module 4 to match the bending shape of a foil 7. One end of the working space is the foil inlet end, and the other end is equipped with a limit mechanism 5 with adjustable position. The base serves as the fundamental support of the device, forming a stable bending structure by fixing the lower module and integrating the upper module. The design of the working space, through the geometric matching of the upper and lower modules, ensures uniform force during foil bending. The adjustable position of the limit mechanism, combined with the lifting and lowering control of the drive mechanism, enables adaptation to foils of different lengths.

[0023] In this embodiment, the lower module 2 includes a bending platform 21 and a bending groove 22 disposed in the middle of the bending platform, and the upper module 3 includes a movable seat 31 connected to the drive mechanism and a V-shaped bending head 32 disposed at the lower end of the movable seat. The bending platform and the bending groove form a fixed forming surface, and the V-shaped bending head cooperates with the bending groove through the pressure of the drive mechanism to progressively complete the bending of the foil. The V-shaped design makes the bending force distribution symmetrical and avoids stress concentration on one side.

[0024] In this embodiment, the drive mechanism 4 includes a rotating handle 41, which is connected to a gear. The gear meshes with a rack, which is fixedly connected to the upper module 3. Manually rotating the handle converts the rotational motion into linear lifting of the upper module through gear and rack transmission. The high transmission ratio of the gear and rack enables precise pressure control. The gear and rack transmission structure is a common transmission structure in the prior art and will not be described in detail here.

[0025] In this embodiment, the limiting mechanism 5 includes a fixed block 51, which has a threaded groove 511 and a sliding groove 512. A stop block 52 is slidably connected to the fixed block 51 via the sliding groove 512. A threaded rod 521 is rotatably connected to the stop block 52. The threaded rod 521 is threadedly connected to the threaded groove 511. One end of the threaded rod 521 is rotatably connected to the stop block 52, and the other end passes through the threaded groove 511 and is fixedly connected to a control handle 522. Rotating the control handle drives the threaded rod to move forward and backward within the threaded groove to move the stop block, causing it to move linearly along the sliding groove, achieving stepless position adjustment. The self-locking characteristic of the threaded pair ensures that the stop block does not deviate after positioning.

[0026] In this embodiment, the stop block 52 extends to the upper end of the bending platform 21, and the lower end of the stop block 52 is flush with the table surface of the bending platform 21. The stop block 52 avoids the movement path of the upper module 3. The stop block 52 extending to the upper end of the bending platform 21 prevents the bearing foil 7 from being inserted into the gap between the stop block 52 and the table surface of the bending platform 21.

[0027] In this embodiment, the upper module 3 is connected to a spring-loaded mechanism 6. The spring-loaded mechanism releases energy stored in a spring, automatically resetting the upper module after bending, thus avoiding springback errors caused by manual intervention.

[0028] In this embodiment, the rebound mechanism 6 includes a spring 61 with one end fixedly connected to the movable seat 31, and the other end of the spring fixed to the base. The two ends of the spring are respectively anchored between the movable seat and the base, and the automatic rebound of the upper module is achieved by compressing and storing energy and releasing elastic potential energy.

[0029] In this embodiment, threaded holes are vertically opened at both ends of the movable seat 31, and threaded blocks 62 are threadedly connected to the threaded holes. The lower end of the threaded blocks 62 is fixedly connected to the spring.

[0030] Working principle: By rotating the control handle 522 of the limiting mechanism, the threaded rod 521 is driven to move forward and backward within the threaded groove 511 of the fixed block 51, causing the stop block 52 to slide linearly along the slide groove 512. This adjustment process can precisely set the distance between the stop block 52 and the foil inlet end, thus adapting to foils of different lengths. The self-locking characteristic of the threaded pair ensures that the stop block remains stable under vibration or pressure after its position is fixed, providing a precise positioning reference for subsequent bending. The foil to be processed is pushed into the working space from the inlet end until its end contacts the stop block 52 to complete the positioning. The operator manually rotates the rotating handle 41 of the drive mechanism 4, and through the meshing transmission of gears and racks, the rotational motion is converted into the vertical downward movement of the upper module 3. The V-shaped bending head 32 then presses against the foil, forming a progressive extrusion with the bending groove 22 of the lower module 2. The V-shaped structure makes the bending force symmetrically distributed, and the foil gradually bends under the arc guidance of the bending groove 22. During the bending process, the moving seat 31 of the upper module 3 compresses the spring 61 of the springback mechanism 6, and the spring stores energy to counteract the material's rebound. When the rotating handle 41 is released, the spring releases its potential energy, pushing the upper module 3 to automatically return to its initial position.

[0031] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A novel bending device for air suspension bearings, characterized in that, Includes a base (1), on which a lower module (2) is fixedly mounted, and an upper module (3) and a drive mechanism (4) for controlling the lifting and lowering of the upper module are mounted on the upper end of the base. The upper module (3) and the lower module (2) form a working space that matches the bent shape of the foil. One end of the working space is the foil inlet end, and the other end is provided with a limit mechanism (5) with adjustable limit position.

2. The novel bending device for an air suspension bearing according to claim 1, characterized in that, The lower module (2) includes a bending platform (21) and a bending groove (22) disposed in the middle of the bending platform. The upper module (3) includes a movable seat (31) that is connected to the drive mechanism and a V-shaped bending head (32) disposed at the lower end of the movable seat.

3. The novel bending device for an air suspension bearing according to claim 1, characterized in that, The drive mechanism (4) includes a rotating handle (41), which is connected to a gear. The gear meshes with a rack, which is fixedly connected to the upper module (3).

4. The novel bending device for an air suspension bearing according to claim 1, characterized in that, The limiting mechanism (5) includes a fixed block (51), which has a threaded groove and a sliding groove. The fixed block (51) is slidably connected to a stop block (52) through the sliding groove. The stop block (52) is rotatably connected to a threaded rod (521). The threaded rod (521) is threadedly connected to the threaded groove. One end of the threaded rod (521) is rotatably connected to the stop block (52), and the other end passes through the threaded groove and is fixedly connected to a control handle (522).

5. A novel bending device for an air suspension bearing according to claim 4, characterized in that, The stop (52) extends to the upper end of the bending platform (21), and the lower end of the stop (52) is flush with the platform surface of the bending platform (21). The stop (52) avoids the movement path of the upper module (3).

6. A novel bending device for an air suspension bearing according to claim 1, characterized in that, The upper module (3) is connected to a spring-back mechanism (6).

7. A novel bending device for an air suspension bearing according to claim 6, characterized in that, The spring mechanism (6) includes a spring (61) with one end fixedly connected to the movable seat (31), and the other end of the spring is fixed to the base.

8. A novel bending device for an air suspension bearing according to claim 7, characterized in that, The movable base (31) has threaded holes at both ends, and threaded blocks (62) are threadedly connected to the threaded holes. The lower end of the threaded blocks (62) is fixedly connected to the spring.

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