Driving motor and reduction gearbox matching structure

Abstract

The utility model belongs to the technical field of connecting structures, and particularly relates to a driving motor and reduction gearbox matching structure. Comprising a reduction gearbox, a reduction gearbox driving gear shaft and a motor, a first-stage driven gear is arranged in the reduction gearbox, a gear is arranged at one end of the reduction gearbox driving gear shaft and meshed with the first-stage driven gear, an outer cone is arranged at the other end of the reduction gearbox driving gear shaft, a motor shaft is arranged on the motor, and the outer cone is meshed with the first-stage driven gear. An inner taper hole is formed in the motor shaft, and the outer cone is connected with the inner taper hole in a matched mode. The gear and the outer cone are respectively arranged at two ends of the reduction gearbox driving gear shaft, so that the design of the reduction gearbox driving gear shaft is simplified, the reduction gearbox can be conveniently connected with a motor through the reduction gearbox driving gear shaft, the matching design of bearings and splines of an input shaft of the reduction gearbox and an oil seal are reduced, and the space and the cost are favorably saved; and disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of connection structures, and particularly relates to a matching structure of a driving motor and a reduction box. Background Art

[0002] For the existing electric forklift drive system, the reduction box driving gear shaft adopts a hollow blind hole design, and one end is connected to the motor shaft external spline with an internal spline, and is fixed to the front and rear housings of the reduction box through bearings; an oil seal is installed on the front housing of the reduction box to play a sealing role.

[0003] However, this connection structure makes the assembly between the drive motor and the reduction box complicated and increases the material cost. Therefore, it is necessary to design a drive motor and reduction box matching structure to solve the above problems. Utility Model Content

[0004] In view of the above problems, the utility model provides a driving motor and a reduction box matching structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a driving motor and reduction box matching structure, comprising a reduction box, a reduction box driving gear shaft and a motor, the reduction box is provided with a first-stage passive gear, one end of the reduction box driving gear shaft is provided with a gear, the gear is meshed with the first-stage passive gear, the other end of the reduction box driving gear shaft is provided with an outer cone, the motor is provided with a motor shaft, the motor shaft is provided with an inner tapered hole, and the outer cone is matched and connected with the inner tapered hole.

[0006] Furthermore, the driving gear shaft of the reduction box adopts a cantilever structure.

[0007] Furthermore, the driving motor and reduction box matching structure also includes a bolt, a threaded hole is opened on the motor, and the bolt passes through the reduction box driving gear shaft and is inserted into the threaded hole.

[0008] Furthermore, an inner hole is formed at one end of the reduction gearbox driving gear shaft away from the motor, and a threaded structure is provided on the inner hole, and the threaded structure is used for assembling tooling.

[0009] Furthermore, the driving motor and reduction box matching structure also includes bolts, the reduction box front housing of the reduction box and the motor front end cover of the motor are connected through a stopper, and the reduction box front housing of the reduction box and the motor front end cover of the motor are connected through the bolts.

[0010] Furthermore, the driving motor and reduction box matching structure also includes an oil seal, and the oil seal is arranged between the motor front end cover of the motor and the motor shaft.

[0011] Furthermore, the driving motor and reduction box matching structure also includes an O-ring, and the O-ring is installed on the motor front end cover of the motor.

[0012] Technical effects and advantages of the utility model:

[0013] By respectively arranging gears and outer cones at both ends of the reduction box driving gear shaft, the design of the reduction box driving gear shaft is simplified, and the reduction box can be conveniently connected to the motor through the reduction box driving gear shaft, and the reduction box input shaft bearing, spline matching design and oil seal are reduced, which is conducive to saving space, saving costs, and facilitating disassembly and assembly.

[0014] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram showing the structure of the driving motor and the reduction gearbox matching structure of the embodiment of the utility model is shown;

[0017] Figure 2 A cross-sectional view of the matching structure of the drive motor and the reduction gearbox in an embodiment of the utility model is shown.

[0018] Figure numerals: 1. reduction box; 111. reduction box driving gear shaft; 1111. threaded structure; 1112. outer cone; 1113. gear; 13. bolt; 14. reduction box front housing; 15. stopper fit; 16. primary passive gear; 2. motor; 21. motor front end cover; 22. O-ring; 23. oil seal; 24. motor shaft; 241. threaded hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 and Figure 2 As shown, a driving motor and reduction box matching structure of an embodiment of the utility model includes a reduction box 1, a reduction box driving gear shaft 111 and a motor 2. The reduction box 1 is provided with a first-stage passive gear 16, one end of the reduction box driving gear shaft 111 is provided with a gear 1113, the gear 1113 is meshed with the first-stage passive gear 16, the other end of the reduction box driving gear shaft 111 is provided with an outer cone 1112, the motor 2 is provided with a motor shaft 24, the motor shaft 24 is provided with an inner tapered hole, and the outer cone 1112 is matched and connected with the inner tapered hole.

[0021] In this embodiment, a reduction box driving gear shaft 111 is provided, a gear 1113 is provided at one end of the reduction box driving gear shaft 111, and the gear 1113 is used to mesh with the primary passive gear 16 in the reduction box 1, so as to connect the reduction box 1 with the reduction box driving gear shaft 111. An outer cone 1112 is provided at the other end of the driving gear 1113, and the outer cone 1112 is used to cooperate and connect with the inner cone hole of the motor shaft 24 on the motor 2, so as to connect the motor 2 with the reduction box driving gear shaft 111.

[0022] Therefore, by respectively arranging gears 1113 and outer cones 1112 at both ends of the reduction box driving gear shaft 111, arranging a first-stage passive gear 16 in the reduction box 1, and opening an inner cone hole on the motor shaft 24 of the motor 2, the reduction box 1 can be conveniently connected to the motor 2 through the reduction box driving gear shaft 111, thereby simplifying the design of the reduction box driving gear shaft 111 of the reduction box 1, reducing the input shaft bearing, spline matching design and oil seal 23 of the reduction box 1, and being conducive to saving space, saving costs, and facilitating disassembly and assembly.

[0023] Optionally, the reduction box driving gear shaft 111 adopts a cantilever structure.

[0024] In this embodiment, before the reduction box 1 and the motor 2 are assembled, the reduction box driving gear shaft 111 is first installed on the motor shaft 24, and then the reduction box 1 and the motor 2 equipped with the reduction box driving gear shaft 111 are fixed by bolts 13, so that the reduction box driving gear shaft 111 has a cantilever structure, with fewer parts and simple installation, which is conducive to improving transmission efficiency.

[0025] Alternatively, if Figure 2 As shown, the driving motor and reduction box matching structure further includes a bolt 13 , a threaded hole 241 is provided on the motor 2 , and the bolt 13 passes through the reduction box driving gear shaft 111 and is inserted into the threaded hole 241 .

[0026] Specifically, the inner tapered hole is located at the front side of the threaded hole 241 .

[0027] In this embodiment, the outer cone 1112 of the reduction gear shaft 111 is matched with the inner cone hole of the motor shaft 24, and the bolt 13 is passed through the reduction gear shaft 111 until the end of the bolt 13 is inserted into the threaded hole 241, and the bolt 13 is threadedly connected to the threaded hole 241, so that the reduction gear shaft 111 and the motor shaft 24 are connected by the bolt 13, so that the reduction gear shaft 111 and the motor 2 can be quickly connected.

[0028] Alternatively, if Figure 2 As shown, an inner hole is formed at one end of the reduction gearbox driving gear shaft 111 away from the motor 2 , and a thread structure 1111 is provided on the inner hole. The thread structure 1111 is used for assembling tooling.

[0029] In this embodiment, an inner hole is opened on the reduction gear shaft 111 and a threaded structure 1111 is provided on the inner hole. The threaded structure 1111 can be used to assemble a tool, and the tool can be used to remove the reduction gear shaft 111 from the motor shaft 24, thereby facilitating the disassembly of the reduction gear 1 and the motor 2.

[0030] Alternatively, if Figure 2 As shown, the driving motor and reduction box matching structure also includes bolts 13, the reduction box front housing 14 of the reduction box 1 is connected to the motor front end cover 21 of the motor 2 via a stop fit 15, and the reduction box front housing 14 of the reduction box 1 is connected to the motor front end cover 21 of the motor 2 via the bolts 13.

[0031] In this embodiment, the stability of the connection between the reduction box 1 and the motor 2 can be improved by connecting the reduction box front housing 14 of the reduction box 1 and the motor front end cover 21 of the motor 2 through the stop fitting 15 and fixing them with bolts 13.

[0032] Alternatively, if Figure 2 As shown, the driving motor and reduction box matching structure further includes an oil seal 23 , and the oil seal 23 is arranged between the motor front end cover 21 of the motor 2 and the motor shaft 24 .

[0033] In this embodiment, by installing an oil seal 23 between the motor front end cover 21 and the motor shaft 24 of the motor 2, the oil in the cavity of the reduction gearbox 1 can be prevented from entering the interior of the motor 2, effectively avoiding damage to the motor 2 and ensuring the stability of the operation of the motor 2.

[0034] Alternatively, if Figure 2 As shown, the driving motor and reduction box matching structure further includes an O-ring 22 , and the O-ring 22 is installed on the motor front end cover 21 of the motor 2 .

[0035] In this embodiment, an O-ring 22 is installed on the motor front end cover 21 of the motor 2. On the one hand, it prevents the oil in the cavity of the reduction gearbox 1 from leaking out from the gap between the reduction gearbox front housing 14 of the reduction gearbox 1 and the motor front end cover 21 of the motor 2. On the other hand, it can also prevent external dust and water from entering the cavity of the reducer, thereby improving the protection level of the reducer and ensuring the stability of the reducer operation.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A driving motor and reduction box matching structure, characterized in that: The invention comprises a reduction box (1), a reduction box driving gear shaft (111) and a motor (2); the reduction box (1) is provided with a first-stage passive gear (16); one end of the reduction box driving gear shaft (111) is provided with a gear (1113), the gear (1113) meshes with the first-stage passive gear (16); the other end of the reduction box driving gear shaft (111) is provided with an outer cone (1112); the motor (2) is provided with a motor shaft (24), the motor shaft (24) is provided with an inner cone hole, and the outer cone (1112) is matched and connected with the inner cone hole.

2. The driving motor and reduction box matching structure according to claim 1 is characterized in that: The reduction box driving gear shaft (111) adopts a cantilever structure.

3. The driving motor and reduction box matching structure according to claim 1 is characterized in that: It also includes a bolt (13). A threaded hole (241) is provided on the motor (2). The bolt (13) passes through the reduction box driving gear shaft (111) and is inserted into the threaded hole (241).

4. The driving motor and reduction box matching structure according to claim 1 is characterized in that: The reduction box driving gear shaft (111) is provided with a thread structure (1111), and the thread structure (1111) is used for assembling tooling.

5. The driving motor and reduction box matching structure according to claim 1 is characterized in that: The invention also comprises bolts (13), wherein the reduction box front housing (14) of the reduction box (1) is connected to the motor front end cover (21) of the motor (2) via a stopper fit (15), and the reduction box front housing (14) of the reduction box (1) is connected to the motor front end cover (21) of the motor (2) via the bolts (13).

6. The driving motor and reduction box matching structure according to claim 1 is characterized in that: It also comprises an oil seal (23), and the oil seal (23) is arranged between the motor front end cover (21) of the motor (2) and the motor shaft (24).

7. The driving motor and reduction box matching structure according to claim 6 is characterized in that: It also includes an O-ring (22), wherein the O-ring (22) is mounted on the motor front end cover (21) of the motor (2).

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