Variable torque and speed motor drive structure

Abstract

This utility model relates to the field of motor transmission technology, specifically a motor transmission structure with variable torque and speed. It mainly includes a motor body, a rotating connecting shaft connected to the top of the motor body, a rotating connecting rod at the top of the rotating connecting shaft, an internal gear with an external gear connected to its inner side, and a docking positioning component with a plug-in block connected to its bottom end and a docking cylinder with a limit block on its inner side. This variable torque and speed motor transmission structure uses internal and external gears of different sizes for meshing connection. When the motor body rotates at a fixed speed, the speed and torque can be changed by switching the assembly positions of the internal and external gears. This convenient switching method is suitable for various products, thereby improving the efficiency of the transmission structure.

Description

Technical Field

[0001] This utility model relates to the field of motor transmission technology, specifically a motor transmission structure with variable torque and speed. Background Technology

[0002] In many industrial applications, mechanical equipment, and transportation vehicles, motors are often required to flexibly adjust their output torque and speed according to different working scenarios and task requirements, thus necessitating the use of motor transmission structures for connection.

[0003] Existing motor drive structures often have limitations in torque and speed adjustment. Some motors adjust speed by changing the power supply frequency, but the torque adjustment range is limited and difficult to control precisely. Others use mechanical speed change devices, which can change speed and torque to some extent, but they are complex in structure, bulky, and inefficient, and it is difficult to achieve continuous and stepless adjustment. They are not suitable for some simple products with simple structure and simple process, which affects the efficiency of the transmission structure. Optimization and improvement are needed. Utility Model Content

[0004] The purpose of this invention is to provide a motor transmission structure with variable torque and speed, in order to solve the problem mentioned in the background art that existing motor transmission mechanisms rely on gearboxes and programs to achieve torque / speed changes, which are not suitable for products with simple structures.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a motor transmission structure with variable torque and speed, comprising: a motor body, a first rotating connecting shaft connected to the top end of the motor body, a second rotating connecting rod provided at the top end of the first rotating connecting shaft, and further comprising a replacement adjustment component and a docking positioning component.

[0006] The replacement adjustment component is located at the top of the rotating connecting shaft. The replacement adjustment component includes an internal gear, and an external gear is connected to the inner side of the internal gear. The replacement adjustment component is used for speed adjustment of the transmission structure.

[0007] The docking positioning component is located at the bottom end of the rotating connecting rod 2. The docking positioning component includes a plug block, the bottom end of which is connected to a docking cylinder. A limit block is provided on the inner side of the docking cylinder. The docking positioning component is used for docking positioning when the transmission structure is replaced.

[0008] Preferably, the internal gear is fixedly connected to the top end of the rotating connecting shaft, and a positioning screw is connected to the inner side of the rotating connecting shaft.

[0009] Preferably, the inner side of the rotating connecting shaft is provided with a threaded hole for threaded connection with the positioning screw, and both ends of the outer side of the rotating connecting shaft are fixedly connected with a push-in protrusion.

[0010] Preferably, the bottom end of the rotating connecting rod 2 is fixedly connected to a plug block, and both outer ends of the plug block are fixedly connected to a push-in protrusion 2.

[0011] Preferably, the docking cylinder is fixedly connected to the bottom end of the internal gear, and an insertion stop block is fixedly connected to the inner wall of the docking cylinder.

[0012] Preferably, the limiting block is slidably connected to the inner side of the insertion block, and the inner side of the insertion block is provided with an adjustment groove that is slidably connected to the limiting block.

[0013] Preferably, the inner side of the limiting block is connected to an elastic connector, and the elastic connector is fixedly connected to the insertion stop block.

[0014] Preferably, the inner side of the external gear is provided with a slot that is adapted to the insertion block.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention uses internal and external gears of different sizes to mesh and connect. When the motor body rotates at a fixed speed, the speed and torque can be changed by switching the assembly positions of the internal and external gears. This convenient switching method is applicable to various products, thereby improving the efficiency of the transmission structure.

[0017] When replacing the internal and external gears, it is necessary to connect them through the plug-in block and the docking cylinder, and then screw in the positioning screws for fixation. During docking and positioning, the pre-positioning and fixing are achieved by setting the second push-in protrusion to dock with the limit block, which improves installation efficiency, ensures that the transmission structure can be easily replaced, and improves the efficiency of use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of another embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the partially separated three-dimensional structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the partial separation three-dimensional structure of the docking and positioning component of this utility model.

[0022] In the diagram: 1. Motor body; 2. Rotary connecting shaft one; 3. Internal gear; 4. Rotary connecting rod two; 5. External gear; 6. Positioning screw; 7. Threaded connection hole; 8. Push-in protrusion one; 9. Insertion block; 10. Push-in protrusion two; 11. Connecting cylinder; 12. Insertion stop block; 13. Adjusting groove; 14. Elastic connector; 15. Limiting block. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] like Figure 1 - Figure 4 As shown, this application provides a motor transmission structure with variable torque and speed, including: a motor body 1, a rotating connecting shaft 2 connected to the top end of the motor body 1, and a rotating connecting rod 4 provided at the top end of the rotating connecting shaft 2;

[0026] A replacement adjustment assembly is provided at the top of the rotating connecting shaft 2. The replacement adjustment assembly includes an internal gear 3, and an external gear 5 is connected to the inner side of the internal gear 3. The replacement adjustment assembly is used for speed adjustment of the transmission structure.

[0027] Specifically, such as Figure 1 As shown, the internal gear 3 is fixedly connected to the top of the rotating connecting shaft 2. The inner side of the rotating connecting shaft 2 is connected to a positioning screw 6, which is used to position the internal gear 3 or the external gear 5.

[0028] Specifically, such as Figure 3 As shown, the inner side of the rotating connecting shaft 2 is provided with a threaded hole 7 that is threaded to the positioning screw 6. The threaded hole 7 is adapted to the positioning screw 6 for stable connection. Both ends of the outer side of the rotating connecting shaft 2 are fixedly connected with a push-in protrusion 8. The push-in protrusion 8 is inserted into the inner side of the external gear 5 or the docking cylinder 11 for positioning.

[0029] Specifically, such as Figure 3 As shown, the inner side of the external gear 5 is provided with a slot that is compatible with the plug-in block 9. The internal structure of the external gear 5 is the same as that of the docking cylinder 11, and it can be adapted to the plug-in installation of the rotating connecting rod 2 4 and the rotating connecting shaft 1 2.

[0030] The bottom end of the rotating connecting rod 2 4 is provided with a docking positioning component, which includes a plug block 9. The bottom end of the plug block 9 is connected to a docking cylinder 11. A limit block 15 is provided on the inner side of the docking cylinder 11. The docking positioning component is used for docking positioning when the transmission structure is replaced.

[0031] Specifically, such as Figure 3 As shown, the bottom end of the rotating connecting rod 2 4 is fixedly connected to the plug block 9, and the two outer ends of the plug block 9 are fixedly connected to the push-in protrusion 2 10. The structural dimensions of the plug block 9 and the push-in protrusion 2 10 are the same as those of the rotating connecting shaft 1 2 and the push-in protrusion 1 8, and can be freely adapted to install the internal gear 3 and the external gear 5.

[0032] Specifically, such as Figure 4 As shown, the docking cylinder 11 is fixedly connected to the bottom end of the internal gear 3, and the inner wall of the docking cylinder 11 is fixedly connected to the insertion stop 12. The insertion stop 12 is set to limit the insertion of the insertion block 9.

[0033] Specifically, such as Figure 4 As shown, the limiting block 15 is slidably connected to the inner side of the insertion stop block 12. The inner side of the insertion stop block 12 is provided with an adjustment groove 13 that is slidably connected to the limiting block 15. The inner side of the limiting block 15 is connected to an elastic connector 14. The elastic connector 14 is fixedly connected to the insertion stop block 12. Through the adjustable pressing of the limiting block 15, it is used to pre-fix the insertion protrusion 2 10 or insertion protrusion 1 8 after insertion.

[0034] In this embodiment: by setting internal gears 3 and external gears 5 of different sizes to mesh and connect, when the motor body 1 rotates at a fixed speed, the speed and torque can be changed by switching the assembly positions of internal gears 3 and external gears 5. The convenient replacement method is applicable to various products. When replacing internal gears 3 and external gears 5, it is necessary to connect them through plug-in block 9 and docking cylinder 11, and then screw in positioning screws 6 for fixation. During docking and positioning, pre-positioning and fixing are achieved by setting the insertion protrusion 2 10 and the limiting block 15 to connect, which facilitates the improvement of installation stability.

[0035] Specifically, this solution involves the following: When the motor body 1 drives the rotating connecting rod 2 4 and the crushing device at the top via a transmission structure, internal gears 3 and external gears 5 of different sizes are meshed together. The positions of the internal gears 3 and external gears 5 can be adjusted according to the required speed in the operating environment. When the motor body 1 rotates at a fixed speed, the internal gear 3 can be mounted on the rotating connecting shaft 2, and its rotation drives the external gear 5 and the rotating connecting rod 2 4 at the top. Alternatively, the external gear 5 can be mounted on the rotating connecting shaft 2, and its rotation drives the internal gear 3 and the rotating connecting rod 2 4 at the top, thus achieving rotation. The change in speed and torque, and the convenient replacement method are applicable to various products. When replacing the internal gear 3 and the external gear 5, the inner sides of the internal gear 3 and the external gear 5 are provided with the same pre-positioning structure. Taking the installation of the plug-in block 9 and the docking cylinder 11 as an example, the plug-in block 9 and the docking cylinder 11 need to be docked. Then, the second push-in protrusion 10 on the outer side of the plug-in block 9 is pressed down, pushing the limit block 15 to slide inside the adjustment groove 13 and pressing the elastic connector 14, so that the limit block 15 is stuck on the outer side of the second push-in protrusion 10 to form a snap-fit, achieving the effect of pre-positioning. Then, the positioning screw 6 is screwed in for fixation, which facilitates the improvement of installation stability and the convenience of installation and replacement.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A motor drive structure with variable torque and speed, comprising: The motor body (1) has a rotating connecting shaft (2) connected to its top end, and a rotating connecting rod (4) is provided at the top end of the rotating connecting shaft (2). The motor body (1) is characterized by further comprising: Replacement adjustment component, the replacement adjustment component is set at the top of the rotating connecting shaft (2), the replacement adjustment component includes an internal gear (3), the inner side of the internal gear (3) is connected to an external gear (5), the replacement adjustment component is used for speed adjustment of the transmission structure; The docking positioning component is located at the bottom end of the rotating connecting rod (4). The docking positioning component includes a plug block (9). The bottom end of the plug block (9) is connected to a docking cylinder (11). A limit block (15) is provided on the inner side of the docking cylinder (11). The docking positioning component is used for docking positioning when the transmission structure is replaced.

2. The variable torque and speed motor transmission structure according to claim 1, characterized in that, The internal gear (3) is fixedly connected to the top end of the rotating connecting shaft (2), and a positioning screw (6) is connected to the inner side of the rotating connecting shaft (2).

3. The variable torque and speed motor transmission structure according to claim 1, characterized in that, The inner side of the rotating connecting shaft (2) is provided with a threaded hole (7) that is threadedly connected to the positioning screw (6), and both ends of the outer side of the rotating connecting shaft (2) are fixedly connected with a push-in protrusion (8).

4. The variable torque and speed motor transmission structure according to claim 1, characterized in that, The bottom end of the rotating connecting rod 2 (4) is fixedly connected to a plug block (9), and both outer ends of the plug block (9) are fixedly connected to a push-in protrusion 2 (10).

5. The variable torque and speed motor transmission structure according to claim 2, characterized in that, The docking cylinder (11) is fixedly connected to the bottom end of the internal gear (3), and the inner wall of the docking cylinder (11) is fixedly connected to the insertion stop block (12).

6. The variable torque and speed motor transmission structure according to claim 5, characterized in that, The limiting block (15) is slidably connected to the inner side of the plug-in block (12), and the inner side of the plug-in block (12) is provided with an adjustment groove (13) that is slidably connected to the limiting block (15).

7. The variable torque and speed motor transmission structure according to claim 6, characterized in that, The inner side of the limiting block (15) is connected to an elastic connector (14), and the elastic connector (14) is fixedly connected to the plug-in stop block (12).

8. The variable torque and speed motor transmission structure according to claim 1, characterized in that, The inner side of the external gear (5) is provided with a slot that is compatible with the plug block (9).

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