Transmission assembly assembling interference checking device

Abstract

The utility model discloses a transmission assembly assembling interference checking device, which comprises a matching block, a gear simulation piece and a connecting block, the matching block comprises a cylindrical hole matching part, the front end of the hole matching part is connected with an end face matching part, and the circumferential contour of the end face matching part extends to the outer side of the hole matching part. A flat end face perpendicular to the hole matching part is arranged on one side close to the hole matching part, a groove is formed in the center of the rear end of the hole matching part, one end of the connecting block is contained in the groove, the matching block and the connecting block can be fixed through a fastener, and the other end of the connecting block is fixedly connected with a gear simulation piece. The outline of the gear simulation piece is consistent with the size of the gear. According to the utility model, whether gear assembly interference or insufficient safety clearance occurs when the transmission assembly is assembled can be checked in advance, so that the waste of manpower, material resources, raw materials and production cycle during repair is avoided, and the economic cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of assembly technology of aviation, aerospace engines, and gas turbine components, and in particular to a transmission component assembly interference inspection device. Background Technology

[0002] The transmission housing serves to support and enclose various transmission components, such as gears, shafts, and bearings, ensuring their proper motion and precision. However, during the assembly of these components, factors such as localized enlargement of the housing casting's inner cavity, inconsistent roughing datum conditions in the transmission housing machining, and inconsistent thickness of the assembly adjustment shims can lead to gear assembly interference or insufficient clearance between the gears and the housing's inner wall. After machining the transmission housing components, surface bluing and sealing treatments are required, and problems like gear interference or insufficient clearance may only be discovered after assembly is complete. Rework at this point necessitates repeating these processes, wasting manpower and materials, significantly extending the delivery cycle, and increasing delivery risks. Therefore, it is crucial to conduct pre-assembly checks for assembly interference after component machining and to rework problematic components in advance. Utility Model Content

[0003] To address the problem of gear interference or insufficient safety clearance between gears and the inner wall of the housing during the assembly of transmission housing components, this utility model provides a transmission component assembly interference inspection device.

[0004] The technical solution adopted by this utility model is a transmission component assembly interference inspection device, including a mating block, a gear simulation component, and a connecting block. The mating block includes a cylindrical hole mating part, the front end of which is connected to an end face mating part. The circumferential contour of the end face mating part extends to the outside of the hole mating part, and a flat end face perpendicular to the hole mating part is provided on the side near the hole mating part. A groove is provided at the center of the rear end of the hole mating part, which accommodates one end of the connecting block. The mating block and the connecting block can be fixed by fasteners. The other end of the connecting block is fixedly connected to the gear simulation component, and the outer contour of the gear simulation component is consistent with the size of the gear.

[0005] Furthermore, the center of the mating block is provided with a countersunk hole, and a connecting screw is installed in the countersunk hole to connect the connecting block.

[0006] Furthermore, the end face mating part is a frustum coaxial with the hole mating part.

[0007] Furthermore, the connecting block is a cylindrical rod.

[0008] Furthermore, the connecting block is connected to the gear simulation component via fasteners.

[0009] Compared with the prior art, this utility model has the following advantages:

[0010] 1. Compared to the method of discovering whether there is interference only after formal assembly, the present invention can check whether there is interference in the gear part before the formal assembly of the component. It has a certain degree of foresight and can realize the predictability and fault tolerance of gear interference in the assembly process of transmission housing components.

[0011] 2. It can check in advance whether there will be gear assembly interference or insufficient safety clearance during the assembly of transmission components, avoiding the waste of manpower, material resources and production cycle during rework, and saving economic costs.

[0012] 3. When any component of this utility model is worn, it can be disassembled individually for repair or replacement, making the operation simple.

[0013] 4. The device dimensions can be adjusted according to the part dimensions and assembly relationships, making the device highly flexible. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention;

[0015] Figure 2 yes Figure 1 Sectional view along the AA direction.

[0016] In the diagram: 1. Mating block; 11. Hole mating part; 12. End face mating part; 2. Gear simulation part; 3. Connecting block; 4. Connecting screw. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a transmission component assembly interference inspection device of this utility model.

[0018] like Figure 1 and Figure 2 As shown, a transmission component assembly interference inspection device includes a mating block 1, a gear simulation component 2, and a connecting block 3. The mating block 1 includes a cylindrical hole mating portion 11, the front end of which is connected to an end face mating portion 12. The circumferential contour of the end face mating portion 12 extends to the outside of the hole mating portion 11, and a flat end face perpendicular to the hole mating portion 11 is provided on the side near the hole mating portion 11. A groove is provided at the center of the rear end of the hole mating portion 11, which accommodates one end of the connecting block 3. The mating block 1 and the connecting block 3 can be fixed by fasteners. The other end of the connecting block 3 is fixedly connected to the gear simulation component 2, and the outer contour of the gear simulation component 2 is consistent with the size of the gear.

[0019] Mating block 1 is a mating block for the end face and hole of the part, with dimensions similar to the corresponding dimensions of the part, used for assembly and mating with the part. The dimensions of gear simulation component 2 are consistent with the dimensions of the gear, and the gear simulation component 2 reflects the state of the gear during assembly. Connecting block 3 is located between mating block 1 and gear simulation component 2, used to connect the two and form a corresponding height dimension.

[0020] In this embodiment, the end face mating part 12 is a frustum coaxial with the hole mating part 11. The connecting block 3 is a cylindrical rod. The center of the mating block 1 has a countersunk hole, and a connecting screw 4 is installed in the countersunk hole to thread the connecting block 3. The connecting screw 4 is used to connect and fix the various components during assembly to ensure dimensional accuracy. The connecting block 3 is also connected to the gear simulation part 2 by fasteners.

[0021] In use, first unscrew the connecting screw 4, then assemble the mating block 1 into the hole of the transmission housing part, ensuring that the end faces fit together. The gear simulation part 2 and the connecting block 3 are in a fixed connection state. After the mating block 1 is assembled, insert the gear simulation part 2 and the connecting block 3 from the inner cavity. If the mating surfaces of the connecting block 3 and the mating block 1 cannot fit together, it means that there is an interference phenomenon. If the mating surfaces of the connecting block 3 and the mating block 1 fit tightly together, tighten the connecting screw 4 to complete the fixation, and then push the gear simulation part 2 forward until it fits against the inner wall of the part. At this time, the distance between the mating surface of the mating block 1 and the end face of the part is the minimum gap between the gear and the inner wall after assembly. This distance is used as the basis for whether to rework the part.

[0022] This utility model specifies a service life, requiring only periodic checks of each component for damage, or replacement of components after a certain period, thus ensuring safe and reliable use of the device and effectively reducing replacement and maintenance costs. For parts of different sizes, simply changing the size of the device is sufficient to meet the inspection needs of those parts.

[0023] This utility model discloses a transmission component assembly interference inspection device. After part processing is completed and before surface treatment and assembly, it can perform gear interference checks on the transmission housing parts. If interference or insufficient safety clearance is detected, rework can be carried out in advance. After rework, subsequent surface treatment, sealing, and assembly processes can be performed normally to complete the final component delivery. This utility model can save 100,000 yuan in costs for transmission housing component assembly.

[0024] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A transmission component assembly interference inspection device, characterized in that, The assembly includes a mating block (1), a gear simulation component (2), and a connecting block (3). The mating block (1) includes a cylindrical hole mating part (11). The front end of the hole mating part (11) is connected to an end face mating part (12). The circumferential contour of the end face mating part (12) extends to the outside of the hole mating part (11), and a flat end face perpendicular to the hole mating part (11) is provided on the side near the hole mating part (11). The rear end center of the hole mating part (11) is provided with a groove, which accommodates one end of the connecting block (3). The mating block (1) and the connecting block (3) can be fixed by fasteners. The other end of the connecting block (3) is fixedly connected to the gear simulation component (2). The outer contour of the gear simulation component (2) is consistent with the size of the gear.

2. The transmission component assembly interference inspection device according to claim 1, characterized in that, The center of the mating block (1) is provided with a countersunk hole, and the connecting screw (4) is installed in the countersunk hole to thread the connecting block (3).

3. The transmission component assembly interference inspection device according to claim 1, characterized in that, The end face mating part (12) is a frustum coaxial with the hole mating part (11).

4. The transmission component assembly interference inspection device according to claim 3, characterized in that, The connecting block (3) is a cylindrical rod.

5. The transmission component assembly interference inspection device according to any one of claims 1 to 4, characterized in that, The connecting block (3) is connected to the gear simulation piece (2) by fasteners.

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