Driving device of gear hobbing machine

Abstract

The utility model belongs to the field of gear hobbing driving, and particularly relates to a driving device of a gear hobbing machine, which is used for processing gear blanks and comprises a base, a driving motor, a gear box and a hobbing cutter structure, a cavity is arranged in the base, the driving motor and the gear box are both positioned in the cavity, and the gear box comprises a first transmission shaft, a driving gear and a driven gear. The driving end of the driving motor is connected to the first transmission shaft, a second transmission shaft parallel to the first transmission shaft is further arranged in the gear box, one end of the second transmission shaft is provided with a connecting gear in meshed connection with the driven gear, and the other end of the second transmission shaft is provided with a transmission shaft. And a hob structure is arranged at the other end so as to drive the hob structure to machine the gear blank. And the driving motor and the gear box are arranged in the cavity of the base, so that the overall size of the equipment is obviously reduced, and the production space is saved.

Description

Technical Field

[0001] This utility model belongs to the field of gear hobbing drive, and particularly relates to a drive device for a gear hobbing machine. Background Art

[0002] In the machinery manufacturing industry, gears are the core components of transmission systems, and their machining accuracy and efficiency directly affect the performance and reliability of the entire mechanical system. Gear hobbing machines, as one of the main pieces of equipment for gear machining, achieve precise machining of gear teeth through the relative motion of the hob and the gear blank. Traditional gear hobbing machine drive units are often complex in structure, occupy a large area, and, due to their long transmission chains, are prone to reduced transmission efficiency and precision loss. Furthermore, traditional designs often externalize the drive motor and gearbox, which not only increases the overall size of the equipment but also makes maintenance and upkeep relatively difficult. Utility Model Content

[0003] The purpose of this invention is to provide a drive device for a gear hobbing machine, which aims to solve the above problems.

[0004] To achieve the above objectives, this utility model provides a drive device for a gear hobbing machine for processing gear blanks. The device includes a base, a drive motor, a gearbox, and a hobbing cutter structure. The base has a cavity, within which the drive motor and gearbox are located. The gearbox includes a first drive shaft, a main gear, and a driven gear. The main gear and driven gear are respectively connected to the front and rear ends of the drive shaft and rotate synchronously with it. The drive end of the drive motor is connected to the first drive shaft. The gearbox also contains a second drive shaft parallel to the first drive shaft. One end of the second drive shaft has a connecting gear that meshes with the driven gear, and the other end has a hobbing cutter structure to drive the hobbing cutter structure to process the gear blank.

[0005] Furthermore, the drive end of the drive motor is positioned downwards and connected to a pair of gears to rotate synchronously. The pair gear meshes with the main gear, and by rotating the first transmission shaft, it transmits power to the second transmission shaft to drive the hobbing structure to rotate.

[0006] Furthermore, the cavity is provided with a radially inwardly limiting support portion, which surrounds a laterally arranged convergent shell. The first drive shaft extends into one end of the convergent shell and extends out from the other end.

[0007] Furthermore, the first drive shaft is also provided with a transversely arranged movable cavity, with one end of a threaded rod disposed in the movable cavity and the other end extending out of the movable cavity, moving toward or away from the main gear.

[0008] Furthermore, the inner wall of the active cavity is also provided with a corresponding threaded groove, which is threadedly connected to the threaded rod to drive the threaded rod to move closer to or further away from the main gear.

[0009] Furthermore, a first bearing housing that can be rotated is provided between the connecting gear and the base, and a second bearing housing that can be rotated is provided in the middle of the second transmission shaft.

[0010] Furthermore, the hobbing cutter structure includes several rotating blades and abutment plates disposed at both ends of the rotating blades; the rotation blades are driven by a drive motor to transmit power to a second drive shaft, thereby enabling the rotating blades to perform cutting action.

[0011] The above-mentioned technical solutions in the drive device of the gear hobbing machine provided in this embodiment of the utility model have at least the following technical effects:

[0012] First, the gear blank to be processed is placed on the worktable of the gear hobbing machine, and its position is adjusted to ensure correct alignment with the hob structure. The drive motor is started, and the motor drives the main gear and driven gear to rotate synchronously via the first transmission shaft. The driven gear, through meshing, drives the second transmission shaft and its connecting gear at the end to rotate. The rotation of the second transmission shaft further drives the hob structure to rotate, realizing the gear hobbing process on the gear blank. During processing, the speed and direction of the drive motor can be precisely adjusted through the control system to meet the processing requirements of different gears. By integrating the drive motor and gearbox within the base cavity, the overall size of the equipment is significantly reduced, saving production space. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 The internal drive device of the gear hobbing machine provided in the embodiment of this utility model Figure 1 .

[0015] Figure 2 The internal drive device of the gear hobbing machine provided in the embodiment of this utility model Figure 2 .

[0016] Explanation of key figure labels:

[0017] 100, base; 110, drive motor; 120, cavity;

[0018] 200. Gearbox; 210. First drive shaft; 220. Main gear; 230. Driven gear; 231. Second drive shaft; 240. Connecting gear; 250. Secondary gear; 260. Support part; 270. Converging shell; 280. Movable cavity; 290. Threaded rod;

[0019] 300, threaded groove; 310, first bearing housing; 320, second bearing housing; 330, hobbing cutter structure; 340, rotating blade; 341, abutment plate. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below, with examples of the embodiments shown in the appendix. Figures 1-2 As shown in the figure, the same or similar reference numerals throughout denote the same or similar elements or elements having the same or similar functions. The following is illustrated with reference to the appendix. Figures 1-2 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0024] In this embodiment of the utility model, a drive device for a gear hobbing machine is provided for processing gear blanks. It includes a base 100, a drive motor 110, a gearbox 200, and a hobbing cutter structure 330. The base 100 has a cavity 120. The drive motor 110 and the gearbox 200 are both located in the cavity 120. The gearbox 200 includes a first drive shaft 210, a main gear 220, and a driven gear 230. The main gear 220 and the driven gear 230 are respectively connected to the front end and the rear end of the drive shaft and rotate synchronously with the drive shaft. The drive end of the drive motor 110 is connected to the first drive shaft 210. The gearbox 200 also has a second drive shaft 231 arranged parallel to the first drive shaft 210. One end of the second drive shaft 231 has a connecting gear 240 that meshes with the driven gear 230, and the other end has a hobbing cutter structure 330 to drive the hobbing cutter structure 330 to process the gear blank.

[0025] Specifically, the gear blank to be processed is placed on the worktable of the gear hobbing machine, and its position is adjusted to ensure correct alignment with the hobbing cutter structure 330. The drive motor 110 is started, and the motor drives the main gear 220 and the driven gear 230 to rotate synchronously via the first transmission shaft 210. The driven gear 230, through meshing, drives the second transmission shaft 231 and its connecting gear 240 at its end to rotate. The rotation of the second transmission shaft 231 further drives the hobbing cutter structure 330 to rotate, realizing the gear hobbing process on the gear blank. During processing, the speed and direction of the drive motor 110 can be precisely adjusted through the control system to meet the processing requirements of different gears. By integrating the drive motor 110 and gearbox 200 within the cavity 120 of the base 100, the overall volume of the equipment is significantly reduced, saving production space.

[0026] In another embodiment of the invention, the drive end of the drive motor 110 is positioned downwards and connected to a secondary gear 250 to rotate synchronously. The secondary gear 250 meshes with the main gear 220, and drives the first transmission shaft 210 to transmit power to the second transmission shaft 231, thereby driving the hobbing cutter structure 330 to rotate. Specifically, although the secondary gear 250 is added as a transmission stage, the direct meshing between the secondary gear 250 and the main gear 220, along with the precise design and machining of the entire transmission chain, ensures that the transmission efficiency will not be significantly reduced. In some cases, even higher transmission efficiency can be achieved by optimizing gear parameters. Furthermore, by introducing the secondary gear 250 as an intermediate transmission stage, the load during the transmission process can be effectively distributed, reducing the wear of individual gears and improving the stability and durability of the entire transmission system.

[0027] In another embodiment of the utility model, a radially inwardly limiting support portion 260 is provided within the cavity 120. The support portion 260 surrounds a laterally arranged converging shell 270. A first drive shaft 210 extends into one end of the converging shell 270 and extends out from the other end. A laterally arranged movable cavity 280 is also provided within the first drive shaft 210. One end of a threaded rod 290 is disposed within the movable cavity 280, and the other end extends out of the movable cavity 280, moving closer to or further away from the main gear 220. A corresponding threaded groove 300 is also provided on the inner wall of the movable cavity 280. The threaded groove 300 is threadedly connected to the threaded rod 290 to drive the threaded rod 290 to move closer to or further away from the main gear 220. Specifically, the converging shell 270 serves to guide and support the first drive shaft 210. One end of the first drive shaft 210 extends into the converging shell 270 and extends out from the other end, realizing the transmission of power. After the threaded rod 290 is rotated to the desired position, the tight fit between its thread and the threaded groove 300 serves to fix it, preventing the drive shaft from shifting or shaking during transmission. The main function of the threaded rod 290 is that the inner wall of the movable cavity 280 has a threaded groove 300 that matches the threaded rod 290. When the threaded rod 290 rotates under the action of an external force, it will move linearly along the threaded groove 300 toward the main gear 220, thereby achieving adjustment to move closer to or away from the main gear 220.

[0028] In another embodiment of the invention, a rotatable first bearing seat 310 is provided between the connecting gear 240 and the base 100, and a rotatable second bearing seat 320 is provided at the middle of the second transmission shaft 231. Specifically, this support not only reduces swaying and vibration during transmission but also improves transmission stability. Furthermore, it reduces friction and resistance during transmission. This helps to improve transmission efficiency and reduce energy loss.

[0029] In another embodiment of the utility model, the hobbing cutter structure 330 includes a plurality of rotating blades 340 and abutment plates 341 disposed at both ends of the rotating blades 340. Driven by the drive motor 110, the rotation is transmitted to the second drive shaft 231, enabling the rotating blades 340 to perform cutting actions. Specifically, the design of the rotating blades 340 makes the cutting process more efficient. Compared with traditional cutting methods, the rotating blades 340 can cut materials faster, thereby improving production efficiency. The design of the abutment plates 341 ensures the stability and accuracy of the rotating blades 340. During the cutting process, the abutment plates 341 prevent the rotating blades 340 from shifting or wobbling, thereby ensuring the precision and consistency of the cutting.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drive device for a gear hobbing machine, used for machining gear blanks, characterized in that, The device includes a base, a drive motor, a gearbox, and a hobbing cutter structure. The base has a cavity, and the drive motor and the gearbox are both located within the cavity. The gearbox includes a first drive shaft, a main gear, and a driven gear. The main gear and the driven gear are respectively connected to the front and rear ends of the drive shaft and rotate synchronously with the drive shaft. The drive end of the drive motor is connected to the first drive shaft. The gearbox also has a second drive shaft arranged parallel to the first drive shaft. One end of the second drive shaft has a connecting gear that meshes with the driven gear, and the other end has a hobbing cutter structure to drive the hobbing cutter structure to process the gear blank.

2. The drive device for the gear hobbing machine according to claim 1, characterized in that, The drive end of the drive motor is positioned downwards and is connected to a pair of gears to rotate synchronously. The pair gear meshes with the main gear and drives the first transmission shaft to transmit power to the second transmission shaft, thereby driving the hobbing structure to rotate.

3. The drive device for the gear hobbing machine according to claim 1, characterized in that, The cavity is provided with a radially inwardly limiting support portion, which surrounds a laterally arranged convergent shell. The first drive shaft extends into one end of the convergent shell and extends out from the other end.

4. The drive device for the gear hobbing machine according to claim 3, characterized in that, The first drive shaft is also provided with a transversely arranged movable cavity. One end of a threaded rod is disposed in the movable cavity, and the other end extends out of the movable cavity and moves toward or away from the main gear.

5. The drive device for the gear hobbing machine according to claim 4, characterized in that, The inner wall of the movable cavity is also provided with a corresponding threaded groove, which is threadedly connected to the threaded rod to drive the threaded rod to move closer to or further away from the main gear.

6. The drive device for the gear hobbing machine according to claim 1, characterized in that, A first bearing seat that can be rotated is provided between the connecting gear and the base, and a second bearing seat that can be rotated is provided in the middle of the second transmission shaft.

7. The drive device for the gear hobbing machine according to claim 1, characterized in that, The hobbing cutter structure includes a plurality of rotating blades and abutment plates disposed at both ends of the rotating blades; the drive motor drives the second drive shaft, thereby enabling the rotating blades to perform cutting action.

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