Novel mother board tool for longitudinally-arranged large-volume hybrid gearbox test bench

Abstract

The utility model discloses a novel mother board tool used for a longitudinally-arranged large-volume hybrid gearbox test bench, which comprises a mother board, a first fixing hole and a second fixing hole are formed around a middle shaft hole of the mother board, the mother board is rectangular, a protruding arc-shaped part is arranged on the long edge of the bottom of the mother board, and the first fixing hole and the second fixing hole are formed in the periphery of the middle shaft hole of the mother board. A concave groove is formed in one side of the edge of the arc-shaped part of the mother board, and vertically distributed mounting holes are formed in the side parts of the mother board. Compared with an integrated mother board tool, the mother board tool has the advantages that the structure of the lower portion of the mother board tool is reduced, interference with a gearbox is avoided, and universality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hybrid transmission testing, in particular to a novel master plate tooling for a longitudinally-mounted large-volume hybrid transmission test bench. Background Art

[0002] Conventional transverse or single-speed ratio hybrid transmissions are usually small in volume. The existing general master plate toolings for transmission test benches are all straight-through integrated types, and only hole positions for passing through the engine shaft and the output half shaft are provided on the master plate. However, the existing master plate toolings are not universal for more and more longitudinally-mounted multi-gear large-volume hybrid transmissions. Due to the longitudinal and multi-gear structures of this type of hybrid transmission, the transmission is often large in volume, and the protrusions at the lower differential and generator housing parts will exceed the engine joint surface, resulting in interference between the existing straight-through integrated master plate tooling and the lower half of the longitudinally-mounted multi-gear large-volume hybrid transmission during installation. In order to avoid the protruding differential and generator housing, it is often necessary to damage the interference position of the general master plate tooling to adapt to the transmission. This has the following disadvantages: (1) The existing master plate after being damaged for the installation of one hybrid transmission may not be applicable to another hybrid transmission, lacking universality; (2) Damaging the existing master plate will increase the tooling cost of the test project; (3) Arbitrarily opening holes on the master plate damages the structural strength and stiffness of the master plate and cannot meet the initial design requirements in terms of structural strength and stiffness. Therefore, a master plate tooling with a reduced lower structure compared to the integrated master plate tooling, without interference with the transmission, and high universality is needed. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art, and aims to provide a novel master plate tooling with a reduced lower structure compared to the integrated master plate tooling, without interference with the transmission, and high universality.

[0004] To achieve the above purpose, the technical solution of the utility model is realized as follows:

[0005] A novel master plate tooling for a longitudinally-mounted large-volume hybrid transmission test bench includes a master plate. The master plate is provided with a first fixing hole and a second fixing hole around the central shaft hole. The master plate is rectangular, and the long side at the bottom of the master plate is provided with a protruding arc-shaped part. One side of the edge of the arc-shaped part of the master plate is provided with a concave groove, and the side parts of the master plate are all provided with vertically distributed mounting holes.

[0006] Further, the mounting holes on the side parts of the master plate are all provided with two rows.

[0007] Further, the thickness of the master plate is not less than 30 cm.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] Compared with the integrated motherboard tooling, the lower structure of the present utility model is removed, and an arc-shaped part and a groove are provided at the bottom edge, which solves the problem of installation interference of the original motherboard tooling. After the modification, it not only meets the test requirements but also retains the original tooling strength and stiffness requirements. At the same time, after the modification, the versatility of the motherboard tooling is satisfied, and it can be used for testing of different types of large and small volume hybrid gearboxes, saving tooling materials and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic structural diagram of the present utility model.

[0011] Description of the reference numerals:

[0012] 1 - Motherboard, 2 - Mounting hole, 3 - Arc-shaped part, 4 - Groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0014] As Figure 1 shown, a new type of motherboard tooling for a longitudinally-mounted large volume hybrid gearbox test bench includes a motherboard 1. The motherboard 1 is provided with a first fixing hole 5 and a second fixing hole 6 around the central shaft hole. The motherboard 1 is rectangular. A protruding arc-shaped part 3 is provided on the long side of the bottom of the motherboard 1. An inward concave groove 4 is provided on one side of the edge of the arc-shaped part 3 of the motherboard 1. Mounting holes 2 vertically distributed are provided on the sides of the motherboard 1.

[0015] Among them, two rows of mounting holes 2 are provided on the sides of the motherboard 1. The mounting holes 2 are used to connect the bench brackets. Vertically arranged and set in two rows, it increases the versatility of the motherboard 1 and can be used for testing of different types of large and small volume hybrid gearboxes, saving tooling materials and time costs.

[0016] Among them, the thickness of the motherboard 1 is not less than 30 cm. The lower structure of the motherboard 1 is removed compared with the integrated motherboard tooling, and the overall structure is appropriately thickened to meet the strength and stiffness requirements of the tooling.

[0017] Compared with the integrated motherboard tooling, the lower structure of the present utility model is removed. The first fixing hole 5 is used to connect with the bearing seat, and the second fixing hole 6 is used to connect with the connecting ring. An arc-shaped part 3 and a groove 4 are provided at the bottom edge. The arc-shaped part 3 can match the connecting ring of the hybrid gearbox, and the setting of the groove 4 can avoid the differential of the measured part, solving the problem of installation interference of the original integrated motherboard tooling. After the modification, it not only meets the test requirements but also retains the original tooling strength and stiffness requirements. At the same time, after the modification, the versatility of the motherboard 1 is satisfied, and it can be used for testing of different types of large and small volume hybrid gearboxes, saving tooling materials and time costs.

[0018] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A new master plate tooling for a longitudinally-mounted large-volume hybrid transmission test bench, comprising a master plate (1). The master plate (1) is provided with a first fixing hole (5) and a second fixing hole (6) around the central shaft hole. It is characterized in that: The motherboard (1) is rectangular. A convex arc-shaped portion (3) is provided on the long side at the bottom of the motherboard (1). A concave groove (4) is formed on one side of the edge of the arc-shaped portion (3) of the motherboard (1). Vertical distribution mounting holes (2) are provided on the sides of the motherboard (1).

2. The novel mother board tooling for the longitudinal large-volume hybrid transmission test bench according to claim 1, characterized in that: Two rows of mounting holes (2) are provided on the sides of the motherboard (1).

3. A new master plate tooling for a longitudinally-mounted large-volume hybrid transmission test bench according to claim 1, characterized in that: The thickness of the motherboard (1) is not less than 30 cm.

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