A reinforced structure of a motor casing and a front box of a reduction gearbox

Abstract

The utility model discloses a motor casing and deceleration box front box body reinforcing structure, including motor part and deceleration box part, the deceleration box part outer wall is equipped with detachable connecting frame, the detachable connecting frame with lock structure that motor part is established between the motor part is equipped with, through the structure setting of the utility model, have following's advantage, the strength is improved obviously: through detachable connecting frame establishes the additional connection of motor casing and deceleration box output shaft shell, avoids the deceleration box front box body and appears the problem of crack because stress concentration, prolongs product life. The integrated connecting structure enhances the overall rigidity, optimizes the vibration transmission path, improves the structural modal performance, significantly reduces the noise in the process of equipment operation, improves user experience. Assembly and maintenance are convenient: detachable connecting frame adopts bolt connection and sets up assembly mode, not only assembly positioning is accurate, but also is convenient for the dismantling of later maintenance, overhaul, reduces operation and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of motor and reducer connection structure, and in particular to a reinforcing structure for motor housing and reducer front housing. Background Technology

[0002] In products such as electric drive assemblies and generator assemblies that rely on the coordinated operation of motors and gearboxes, the connection structure between the motor housing and the front housing of the gearbox is a core element in ensuring stable power transmission and preventing component damage. Currently, the mainstream design on the market adopts a split structure, where the motor housing and the front housing of the gearbox are two independent components, and during the production and assembly stage, they are directly connected and fixed at their edges only by bolts.

[0003] However, this traditional connection method has significant technical defects: First, the connection points are only concentrated at the edges of the two parts, resulting in insufficient overall structural rigidity. During vehicle operation or equipment operation, the front housing of the gearbox is prone to cracking due to local stress concentration caused by vibration and torque transmission, which seriously affects the service life of the product and may even cause safety hazards. Second, the split connection results in poor structural modal performance, unstable vibration transmission path, and easy generation of obvious noise during operation, reducing the user experience.

[0004] To address the aforementioned issues, there is an urgent need in this field for a reinforced structure that can enhance the connection stability between the motor housing and the front housing of the gearbox, improve structural strength, and mitigate modal and noise degradation. However, there is currently no effective solution for this requirement in the existing technology. Therefore, developing a novel reinforced structure has significant practical application value.

[0005] Therefore, the existing technology of motor and reducer connection structure needs further improvement. Utility Model Content

[0006] The purpose of this utility model is to provide a reinforcing structure for the motor housing and the front housing of the gearbox, in order to overcome the defects of the existing technology, such as insufficient strength of the connection structure between the motor housing and the front housing of the gearbox, easy cracking, poor modality, and obvious noise, and to provide a reinforcing structure for the motor housing and the front housing of the gearbox.

[0007] To achieve the above objectives, the present invention adopts the following solution: A reinforcing structure for a motor housing and a gearbox front housing includes a motor part and a gearbox part. A detachable connecting frame is installed on the outer wall of the gearbox part, and a locking structure for fixing the motor part is provided between the detachable connecting frame and the motor part.

[0008] Furthermore, a connecting base is provided between the motor part and the gearbox part.

[0009] Furthermore, the motor portion includes a motor housing disposed on one side of the connecting base, and the motor housing is provided with a motor mounting slot.

[0010] Furthermore, the gearbox portion includes a gearbox output shaft housing disposed on the other side of the connecting base, and a gearbox output shaft housing having a gearbox assembly mounting groove inside.

[0011] Furthermore, the detachable connecting frame includes an assembly ring that can be fitted onto the outer wall of the gearbox output shaft housing, and the gearbox output shaft housing is provided with a support plane for limiting the height of the assembly ring.

[0012] Furthermore, the locking structure includes multiple threaded holes on the motor housing and multiple bolt holes on the mounting ring, with bolts inserted into the bolt holes and threadedly connected to a corresponding threaded hole.

[0013] Furthermore, the number of threaded holes is the same as the number of bolt holes.

[0014] In summary, the advantages of this utility model over the prior art are: This invention addresses the shortcomings of existing motor-reducer connection structures. Through its structural design, it offers the following advantages: Significantly enhanced strength: The detachable connecting frame establishes an additional connection between the motor housing and the reducer output shaft housing, preventing stress concentration and cracking of the reducer's front housing, thus extending product lifespan. The integrated connection structure enhances overall rigidity, optimizes vibration transmission paths, improves structural modal performance, significantly reduces noise during equipment operation, and enhances the user experience. Convenient assembly and maintenance: The detachable connecting frame uses bolted connections and a sleeve assembly method, ensuring precise assembly positioning and facilitating disassembly for later maintenance and repair, reducing operating costs. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model; Figure 2 This is the front view of the present invention; Figure 3 This utility model Figure 2 Sectional view along line AA; Figure 4 This is a schematic diagram of the bottom structure of the gearbox part of this utility model. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4 This utility model provides a reinforcing structure for a motor housing and a gearbox front housing, including a motor part 1 and a gearbox part 2. The characteristic is that a detachable connecting frame 3 is installed on the outer wall of the gearbox part 2, and a locking structure 4 for fixing the motor part 1 is provided between the detachable connecting frame 3 and the motor part 1. Using the connecting base 100 as a carrier, the motor housing 101 of the motor part 1 and the gearbox output shaft housing 201 of the gearbox part 2 are respectively installed on both sides of the connecting base 100 to achieve initial positioning of the two; at the same time, the bottom of the motor housing 101 is connected to the front housing of the gearbox by bolts to form a basic connection relationship, providing a benchmark for subsequent reinforcement.

[0018] The mounting ring 301 of the detachable connecting frame 3 is fitted onto the outer wall of the gearbox output shaft housing 201. The axial displacement of the mounting ring 301 is restricted by the support plane 302 on the gearbox output shaft housing 201, ensuring that the detachable connecting frame 3 is accurately assembled, avoiding loosening of the connection due to vibration, and establishing a direct connection between the motor part 1 and the output end of the gearbox part 2.

[0019] By using bolts 402 of locking structure 4, which pass through symmetrical bolt holes 401 on the mounting ring 301 and engage with symmetrical threaded holes on the motor housing 101, the detachable connecting frame 3 rigidly connects the motor housing 101 and the gearbox output shaft housing 201 into one unit. The symmetrically distributed bolt holes 401 and threaded holes ensure balanced force distribution, avoid local stress concentration, and further enhance the overall structural rigidity. The basic bolt connection + detachable connecting frame 3 reinforces and disperses the vibration and torque stress during vehicle or equipment operation, preventing the front housing of the gearbox from cracking; at the same time, the integrated rigid connection optimizes the structural modes, reduces energy loss and noise generation during vibration transmission, and ultimately achieves the core objectives of strength improvement and noise reduction.

[0020] A connecting base 100 is also provided between the motor part 1 and the gearbox part 2 of this utility model.

[0021] The motor part 1 of this utility model includes a motor housing 101 disposed on one side of the connecting base 100, and a motor mounting groove 102 is provided on the motor housing 101.

[0022] The gearbox portion 2 of this utility model includes a gearbox output shaft housing 201 disposed on the other side of the connecting base 100, and a gearbox output shaft housing 201 is provided with a gearbox assembly mounting groove 202.

[0023] The detachable connecting frame 3 of this utility model includes a mounting ring 301 that can be fitted onto the outer wall of the gearbox output shaft housing 201. The gearbox output shaft housing 201 is provided with a support plane 302 for limiting the height of the mounting ring 301.

[0024] The locking structure 4 of this utility model includes multiple threaded holes on the motor housing 101, and multiple bolt holes 401 on the mounting ring 301. Bolts 402 are inserted into the bolt holes 401 and are threadedly connected to a corresponding threaded hole.

[0025] The present invention has two threaded holes arranged symmetrically on the left and right, and two bolt holes 401 arranged symmetrically on the left and right. The number of threaded holes and bolt holes 401 are the same.

[0026] The gearbox output shaft housing 201 and the mounting ring 301 of the present invention are interference fit. The interference fit assembly relationship can be small clearance assembly, transition assembly, or interference fit.

[0027] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reinforcing structure for a motor housing and a gearbox front housing, comprising a motor portion (1) and a gearbox portion (2), characterized in that: The outer wall of the gearbox (2) is equipped with a detachable connecting frame (3), and a locking structure (4) for fixing the motor part (1) is provided between the detachable connecting frame (3) and the motor part (1).

2. The reinforcing structure for the motor housing and the front housing of the gearbox according to claim 1, characterized in that: A connecting base (100) is also provided between the motor part (1) and the gearbox part (2).

3. The reinforcing structure for the motor housing and the front housing of the gearbox according to claim 2, characterized in that: The motor part (1) includes a motor housing (101) disposed on one side of the connecting base (100), and a motor mounting groove (102) is provided on the motor housing (101).

4. The reinforcing structure for the motor housing and the front housing of the gearbox according to claim 3, characterized in that: The gearbox part (2) includes a gearbox output shaft housing (201) disposed on the other side of the connecting base (100), and a gearbox output shaft housing (201) is provided with a gearbox assembly mounting groove (202).

5. The reinforcing structure for the motor housing and the front housing of the gearbox according to claim 4, characterized in that: The detachable connecting frame (3) includes a mounting ring (301) that can be fitted onto the outer wall of the gearbox output shaft housing (201), and a support plane (302) is provided on the gearbox output shaft housing (201) to limit the height of the mounting ring (301).

6. The reinforcing structure for the motor housing and the front housing of the gearbox according to claim 5, characterized in that: The locking structure (4) includes multiple threaded holes on the motor housing (101) and multiple bolt holes (401) on the mounting ring (301). Bolts (402) are inserted into the bolt holes (401) and are threadedly connected to a corresponding threaded hole.

7. The reinforcing structure for the motor housing and the front housing of the gearbox according to claim 6, characterized in that: The number of threaded holes is the same as the number of bolt holes (401).

8. The reinforcing structure for the motor housing and the front housing of the gearbox according to claim 7, characterized in that: The gearbox output shaft housing (201) and the mounting ring (301) are fitted with an interference fit, a transition fit, or a small clearance fit.

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