Structure of explosion-proof motor gear shaft direct connection reduction gearbox

Abstract

The utility model discloses a kind of structure of explosion-proof motor gear shaft direct connection reduction gearbox, including reduction gearbox, motor, axle center and reduction gearbox cover, the reduction gearbox cover one side is connected with the reduction gearbox, the other side is connected with the motor, installation structure is provided in the motor and the reduction gearbox cover, the axle center is connected with the motor and the reduction gearbox by the installation structure.The structure of explosion-proof motor gear shaft direct connection reduction gearbox proposed in the utility model cancels the connection between self-provided shaft and motor output shaft, connects motor and reduction gearbox together directly, shortens the overall size of motor, reduces the weight of complete machine, also better guarantee the concentricity of motor and reduction gearbox.Not only greatly increase the service life of motor, reduce the frequency of customer to replace motor, also maximumly save cost for customer.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to the structure of a direct-drive gearbox for an explosion-proof motor. Background Technology

[0002] Currently, explosion-proof motors and gearboxes on the market generally use the traditional connection method of "mounting flange + self-matched shaft". However, this model has many drawbacks, causing multiple problems for customers. In terms of production costs, the additional components such as flanges and self-matched shafts not only increase the customer's initial procurement expenses, but also increase the labor and time costs of assembly, resulting in a higher initial investment for the customer. In terms of operational accuracy, the multi-component combination structure makes it difficult to accurately control the concentricity of the motor and gearbox. Concentricity deviations will cause additional losses during equipment operation and affect operational stability. A more prominent problem lies in the maintenance pain points after long-term use. The connection between the motor output shaft and the self-matched shaft is prone to wear and rust due to friction and environmental factors. This not only further exacerbates the problem of operational instability, but also significantly shortens the motor's lifespan, forcing customers to frequently stop and replace the motor. This increases subsequent maintenance costs, interrupts the production process, seriously affects overall production efficiency, and causes many inconveniences to the customer's daily operations.

[0003] Therefore, it is necessary to improve existing technologies. Utility Model Content

[0004] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, one objective of the present invention is to propose a structure for a direct-drive gearbox for an explosion-proof motor, which directly connects the motor and the gearbox together.

[0005] The above objective is achieved through the following technical solution:

[0006] A structure for an explosion-proof motor gearbox with direct gear shaft connection includes a gearbox, a motor, a shaft, and a gearbox cover. One side of the gearbox cover is connected to the gearbox, and the other side is connected to the motor. An installation structure is provided inside the motor and the gearbox cover. The shaft connects the motor and the gearbox through the installation structure.

[0007] In some embodiments, the mounting structure includes a first limiting hole and a second limiting hole. The first limiting hole is disposed on the gearbox cover, and the second limiting hole is disposed on the motor at a height adapted to the first limiting hole. A bearing is disposed on the shaft, and the shaft is mounted between the first limiting hole and the second limiting hole through the bearing and passes through the first limiting hole into the gearbox.

[0008] In some embodiments, the gearbox includes a gearbox housing, a gear assembly, and an output shaft. The gearbox housing is connected to the gearbox cover. The gear assembly is disposed within the gearbox housing and the gearbox cover. An insertion port is provided on the gearbox housing, and a limiting seat is provided on the gearbox cover. The output shaft passes through the insertion port and is limited on the limiting seat. A fixing ring is fitted on the output shaft to fix the output shaft within the insertion port. The output shaft is meshed with the gear assembly. A helical gear is provided at one end of the shaft that passes through the first limiting hole, and the helical gear is meshed with the gear assembly.

[0009] In some embodiments, the motor includes a motor housing, a motor end cover, and an explosion-proof junction box. One end of the motor housing is connected to the motor end cover, and the other end is connected to the gearbox cover. The explosion-proof junction box is provided on one side of the motor housing. A shaft connection cover is provided at the connection between the motor housing and the motor end cover, and the second limiting hole is provided on the shaft connection cover.

[0010] In some embodiments, a first snap-fit ​​ring is provided on one side of the gearbox cover, a second snap-fit ​​ring is provided on the shaft connecting cover, one end of the motor housing is snapped onto the outside of the first snap-fit ​​ring, and the other end is snapped onto the outside of the second snap-fit ​​ring and fixed by screws.

[0011] In some embodiments, the gearbox cover is provided with screw holes, and the gearbox housing is provided with connecting holes adapted to the screw holes. Screws pass through the screw holes and the connecting holes to fix the gearbox cover and the gearbox housing together.

[0012] In some embodiments, a first mounting hole is provided on the motor housing at the connection point with the explosion-proof junction box, and a second mounting hole is provided on the explosion-proof junction box. Screws connect the first mounting hole and the second mounting hole, thereby connecting the motor housing and the explosion-proof junction box together.

[0013] In some embodiments, the explosion-proof junction box is provided with an explosion-proof wiring cover.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] This utility model proposes a structure for a direct-drive gearbox for an explosion-proof motor. It eliminates the connection between the self-matching shaft and the motor output shaft, directly connecting the motor and gearbox together. This shortens the overall size of the motor, reduces the overall weight, and better ensures the concentricity of the motor and gearbox. This not only significantly increases the motor's service life and reduces the frequency of motor replacements for customers, but also maximizes cost savings for them. Attached Figure Description

[0016] Figure 1 This is a connection diagram of the motor and gearbox in the existing technology;

[0017] Figure 2 This is a three-dimensional schematic diagram of the direct connection between the explosion-proof motor gear shaft and the reduction gearbox in the embodiment;

[0018] Figure 3 This is an internal structural diagram of the explosion-proof motor gearbox directly connected to the gear shaft in the embodiment;

[0019] Figure 4 This is an exploded view of the structure of the explosion-proof motor gear shaft directly connected to the reduction gearbox in the embodiment;

[0020] Figure 5 This is a three-dimensional schematic diagram of the axis in the embodiment;

[0021] Figure 6 This is a three-dimensional schematic diagram of the gearbox housing in the embodiment;

[0022] Figure 7 This is a three-dimensional schematic diagram of the gearbox cover in the embodiment. Figure 1 ;

[0023] Figure 8 This is a three-dimensional schematic diagram of the gearbox cover in the embodiment. Figure 2 .

[0024] In the diagram: 1. Gearbox; 11. Gearbox housing; 111. Insertion port; 112. Retaining ring; 113. Connecting hole; 12. Gear assembly; 13. Output shaft; 2. Motor; 21. Motor housing; 211. First mounting hole; 22. Motor end cover; 23. Explosion-proof junction box; 231. Second mounting hole; 24. Explosion-proof junction cover; 3. Shaft; 31. Helical gear; 4. Gearbox cover; 41. Limit seat; 42. First snap-fit ​​ring; 43. Screw hole; 44. First limit hole; 5. Mounting structure; 6. Shaft connecting cover; 61. Second snap-fit ​​ring; 62. Second limit hole; 7. Bearing. Detailed Implementation

[0025] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0026] like Figure 1As shown, in existing technologies, the motor and gearbox are connected via a mounting flange and a self-matched shaft assembly. This method is costly, and the concentricity of the motor and gearbox cannot be well guaranteed. Moreover, over time, the output shaft of the motor and the self-matched shaft are prone to wear and rust, significantly shortening the motor's lifespan.

[0027] like Figures 2 to 8 The present embodiment provides a structure for a direct-drive gearbox for an explosion-proof motor, including a gearbox 1, a motor 2, a shaft 3, and a gearbox cover 4. One side of the gearbox cover 4 is connected to the gearbox 1, and the other side is connected to the motor 2. An installation structure 5 is provided inside the motor 2 and the gearbox cover 4. The shaft 3 connects the motor 2 and the gearbox 1 through the installation structure 5.

[0028] This utility model proposes a structure for a direct-drive gearbox for an explosion-proof motor. It eliminates the connection between the self-matching shaft and the motor output shaft, directly connecting the motor and gearbox together. This shortens the overall size of the motor, reduces the overall weight, and better ensures the concentricity of the motor and gearbox. This not only significantly increases the motor's service life and reduces the frequency of motor replacements for customers, but also maximizes cost savings for them.

[0029] Specifically, the mounting structure 5 includes a first limiting hole 44 and a second limiting hole 62. The first limiting hole 44 is disposed on the gearbox cover 4, and the second limiting hole 62 is disposed on the motor 2 at a height adapted to the first limiting hole 44. A bearing 7 is disposed on the shaft 3, and the shaft 3 is mounted between the first limiting hole 44 and the second limiting hole 62 through the bearing 7 and passes through the first limiting hole 44 into the gearbox 1. The mounting structure 5 allows for a transmission connection between the motor 2 and the gearbox 1 via the shaft 3.

[0030] Furthermore, the gearbox 1 includes a gearbox housing 11, a gear assembly 12, and an output shaft 13. The gearbox housing 11 is connected to the gearbox cover 4. The gear assembly 12 is disposed within the gearbox housing 11 and the gearbox cover 4. An insertion port 111 is provided on the gearbox housing 11, and a limiting seat 41 is provided on the gearbox cover 4. The output shaft 13 passes through the insertion port 111 and is limited by the limiting seat 41. A retaining ring 112 is fitted on the output shaft 13 to fix the output shaft 13 within the insertion port 111. The output shaft 13 is meshed with the gear assembly 12. A helical gear 31 is provided at one end of the shaft 3 that passes through the first limiting hole 44, and the helical gear 31 meshes with the gear assembly 12. The helical gear 31 enables power transmission between the shaft 3 and the gear assembly 12 through meshing. This simple connection greatly reduces the use of spare parts.

[0031] Furthermore, the motor 2 includes a motor housing 21, a motor end cover 22, and an explosion-proof junction box 23. One end of the motor housing 21 is connected to the motor end cover 22, and the other end is connected to the gearbox cover 4. The explosion-proof junction box 23 is provided on one side of the motor housing 21. A shaft connection cover 6 is provided at the connection between the motor housing 21 and the motor end cover 22, and the second limiting hole 62 is provided on the shaft connection cover 6. The shaft connection cover 6 provides support for the shaft 3, ensuring that both ends of the shaft 3 are in a horizontal position, thereby enabling the helical gear 31 to connect more smoothly with the gear assembly 12 and reducing wear.

[0032] Preferably, a first retaining ring 42 is provided on one side of the gearbox cover 4, and a second retaining ring 61 is provided on the shaft connecting cover 6. One end of the motor housing 21 is engaged with the first retaining ring 42, and the other end is engaged with the second retaining ring 61 and fixed by screws. This makes the connection between the gearbox cover 4, the shaft connecting cover 6, and the motor housing 21 more snug.

[0033] Furthermore, the gearbox cover 4 is provided with screw holes 43, and the gearbox housing 11 is provided with connecting holes 113 that are adapted to the screw holes 43. Screws pass through the screw holes 43 and the connecting holes 113 to fix the gearbox cover 4 and the gearbox housing 11 together. This strengthens the connection between the gearbox cover 4 and the gearbox housing 11, making the gearbox structure more stable.

[0034] Furthermore, a first mounting hole 211 is provided on the motor housing 21 at the connection point with the explosion-proof junction box 23, and a second mounting hole 231 is provided on the explosion-proof junction box 23. Screws connect the first mounting hole 211 and the second mounting hole 231, thereby connecting the motor housing 21 and the explosion-proof junction box 23 together. This simplifies the assembly of the motor housing 21 and the explosion-proof junction box 23.

[0035] Furthermore, the explosion-proof junction box 23 is equipped with an explosion-proof wiring cover 24. Customers can disassemble and install the explosion-proof wiring cover 24 as needed, which facilitates equipment maintenance.

[0036] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A structure for a direct-drive gearbox for an explosion-proof motor, characterized in that: It includes a gearbox (1), a motor (2), a shaft (3) and a gearbox cover (4). One side of the gearbox cover (4) is connected to the gearbox (1) and the other side is connected to the motor (2). An installation structure (5) is provided inside the motor (2) and the gearbox cover (4). The shaft (3) connects the motor (2) and the gearbox (1) through the installation structure (5).

2. The structure of the explosion-proof motor gearbox with direct gear shaft connection according to claim 1, characterized in that: The mounting structure (5) includes a first limiting hole (44) and a second limiting hole (62). The first limiting hole (44) is provided on the gearbox cover (4). The second limiting hole (62) is provided on the motor (2) at a height that matches the first limiting hole (44). A bearing (7) is provided on the shaft (3). The shaft (3) is mounted between the first limiting hole (44) and the second limiting hole (62) through the bearing (7) and passes through the first limiting hole (44) into the gearbox (1).

3. The structure of the explosion-proof motor gearbox with direct gear shaft connection according to claim 2, characterized in that: The gearbox (1) includes a gearbox housing (11), a gear assembly (12), and an output shaft (13). The gearbox housing (11) is connected to the gearbox cover (4). The gear assembly (12) is disposed inside the gearbox housing (11) and the gearbox cover (4). An insertion port (111) is provided on the gearbox housing (11). A limiting seat (41) is provided on the gearbox cover (4). The output shaft (13) passes through the insertion port (111) and is limited on the limiting seat (41). A fixing ring (112) is sleeved on the output shaft (13) to fix the output shaft (13) inside the insertion port (111). The output shaft (13) is meshed with the gear assembly (12). A helical gear (31) is provided at one end of the shaft (3) that passes through the first limiting hole (44). The helical gear (31) is meshed with the gear assembly (12).

4. The structure of the explosion-proof motor gearbox with direct gear shaft connection according to claim 3, characterized in that: The motor (2) includes a motor housing (21), a motor end cover (22) and an explosion-proof junction box (23). One end of the motor housing (21) is connected to the motor end cover (22), and the other end is connected to the gearbox cover (4). The explosion-proof junction box (23) is provided on one side of the motor housing (21). A shaft connection cover (6) is provided at the connection between the motor housing (21) and the motor end cover (22). The second limiting hole (62) is provided on the shaft connection cover (6).

5. The structure of an explosion-proof motor gearbox with direct gear shaft connection according to claim 4, characterized in that: A first snap ring (42) is provided on one side of the gearbox cover (4), and a second snap ring (61) is provided on the shaft connection cover (6). One end of the motor housing (21) is snapped to the outside of the first snap ring (42), and the other end is snapped to the outside of the second snap ring (61) and fixed by screws.

6. The structure of an explosion-proof motor gearbox with direct gear shaft connection according to claim 5, characterized in that: The gearbox cover (4) is provided with screw holes (43), and the gearbox housing (11) is provided with connecting holes (113) that are adapted to the screw holes (43). The screws pass through the screw holes (43) and the connecting holes (113) to fix the gearbox cover (4) and the gearbox housing (11) together.

7. The structure of an explosion-proof motor gearbox with direct gear shaft connection according to claim 6, characterized in that: A first mounting hole (211) is provided on the motor housing (21) at the connection point with the explosion-proof junction box (23), and a second mounting hole (231) is provided on the explosion-proof junction box (23). Screws connect the first mounting hole (211) and the second mounting hole (231), thereby connecting the motor housing (21) and the explosion-proof junction box (23) together.

8. The structure of an explosion-proof motor gearbox with direct gear shaft connection according to claim 7, characterized in that: The explosion-proof junction box (23) is provided with an explosion-proof junction cover (24).

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