Gear box transmission device

Abstract

The utility model discloses a gearbox transmission device, which relates to the technical field of mechanical transmission equipment and comprises a first box body and a second box body, and a first blind hole is formed in one side, facing the first box body, of the second box body; the input shaft is rotationally connected to the first box body, and the output end of the input shaft is located in the first blind hole; the first output shaft is rotationally connected to the first box body, and the first output shaft is in transmission connection with the input shaft through a connecting piece; and the second output shaft is rotationally connected to the second box body, the second output shaft is in transmission connection with the output end of the input shaft through a magnetic gear assembly, and the magnetic gear assembly is in signal connection with the control module so that power output of the second output shaft can be interrupted or restarted. According to the gearbox transmission device, the technical problem of action limitation of an existing small-size gearbox is solved, and the technical effect that power output of the other output shaft is selectively cut off or connected according to requirements while continuous power output of one output shaft is kept is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission equipment, in particular to a gear box transmission device. Background Art

[0002] In traditional mechanical transmission, small gearboxes are widely used in various small mechanical devices due to their compact structure and efficient power transmission. However, these gearboxes generally have an inherent design limitation: their extremely limited internal space results in an extremely compact internal structure, which greatly restricts the installation and arrangement of complex transmission mechanisms (such as clutches and synchronizers) within the gearbox.

[0003] Specifically, the gears on the input and output shafts of traditional small-sized gearboxes are typically designed to be in continuous meshing to ensure uninterrupted power transmission. With this design, if power output to a particular output shaft needs to be cut off or re-established, this can only be achieved by stopping or restarting the input shaft. This operational approach is not only inflexible but also particularly difficult in certain operating conditions (e.g., maintaining continuous power output from one output shaft while simultaneously cutting off or re-establishing power output from another output shaft as needed).

[0004] For example, when switching between driving a machine and generating electricity, one power output shaft must be constantly driving the machine. While the other output shaft drives a generator, which doesn't need to be constantly generating electricity, the power connection to that output shaft should theoretically be selectively disconnected to reduce the load on the input shaft when not generating electricity. However, due to the limited internal space of a small gearbox, the necessary clutch or synchronizer cannot be installed to achieve this function, making it impossible to meet the requirements of this operating condition in practice.

[0005] Therefore, how to provide a gearbox transmission device that can continuously output power to one output shaft while flexibly cutting off or connecting the power output of another output shaft according to demand is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0006] The purpose of the utility model is to provide a gear box transmission device, which solves the technical problem of the limitation of the existing small-sized gear boxes.

[0007] To achieve the above objectives, the present invention provides a gearbox transmission device, comprising:

[0008] A first box body, wherein a notch is provided on one side of the first box body for mounting a second box body, and a first blind hole is provided on a side of the second box body facing the first box body;

[0009] an input shaft, rotatably connected to the first housing, wherein an output end of the input shaft is located in the first blind hole;

[0010] a first output shaft, rotatably connected to the first housing, the first output shaft being transmission-connected to the input shaft via a connecting member;

[0011] The second output shaft is rotatably connected to the second housing. The second output shaft is transmission-connected to the output end of the input shaft through a magnetic gear assembly. The magnetic gear assembly establishes a signal connection with the control module to be able to interrupt or restart the power output of the second output shaft.

[0012] Preferably, the magnetic gear assembly comprises:

[0013] A retaining member is assembled in the first blind hole, and a second blind hole and a third blind hole are symmetrically provided on both sides of the retaining member;

[0014] a first mounting bracket rotatably connected to the second blind hole, wherein a middle portion of the first mounting bracket is fixedly connected to an end portion of the second output shaft;

[0015] a second mounting bracket rotatably connected to the third blind hole, the second mounting bracket being fixedly connected to an end portion of the input shaft;

[0016] Excitation windings, wherein a plurality of the excitation windings are embedded on a side of the first mounting frame facing the second mounting frame;

[0017] Permanent magnets, a plurality of which are embedded on a side of the second mounting frame facing the first mounting frame;

[0018] A conductive slip ring is fixedly mounted on the outer wall of the second box body, the conductive slip ring is electrically connected to the power supply cable, and the center hole of the conductive slip ring is used for the second output shaft to pass through.

[0019] Preferably, the first mounting bracket and the second mounting bracket are both rotatably connected to the retaining member via bearings.

[0020] Preferably, a cooling cavity is provided on the wall of the second box body, and connection ports connected to both ends of the cooling cavity are provided on the second box body, and the connection ports are communicated with the cooling circulation water circuit.

[0021] Preferably, the input end of the input shaft, and the output ends of the first output shaft and the second output shaft are all provided with connecting flanges.

[0022] Preferably, the connecting member includes a first gear fixed to the input shaft and a second gear fixed to the first output shaft, and the first gear and the second gear are meshed with each other.

[0023] Preferably, the first box body and the second box body are connected by bolts.

[0024] Preferably, a sealing ring is provided between the first box body and the second box body.

[0025] Compared to the aforementioned background technology, the present invention provides a gearbox transmission device in which power is input from an input shaft and transmitted to a first output shaft via a connector, achieving direct power transmission. Simultaneously, power is also transmitted to a second output shaft via a magnetic gear assembly, achieving contactless power transmission. A control module controls the operating state of the magnetic gear assembly via signals based on user input, thereby interrupting or restarting power output from the second output shaft.

[0026] In summary, the gearbox transmission device provided in the present application can selectively cut off or connect the power output of another output shaft as needed while maintaining continuous power output of one output shaft, greatly improving the applicability and flexibility of small-size gearboxes. The control module adjusts the working state of the magnetic gear assembly, thereby improving the flexibility and controllability of the transmission device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0028] Figure 1 A schematic structural diagram of a gearbox transmission device provided in an embodiment of the present utility model;

[0029] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0030] Figure 3 This is a schematic structural diagram of the first mounting bracket provided in an embodiment of the present utility model.

[0031] in:

[0032] 1-first housing, 2-second housing, 3-input shaft, 4-first output shaft, 5-second output shaft, 6-magnetic gear assembly, 7-connecting flange;

[0033] 21-cooling channel, 22-connection port, 31-first gear, 41-second gear;

[0034] 61 - holder, 62 - second blind hole, 63 - third blind hole, 64 - first mounting bracket, 65 - second mounting bracket, 66 - excitation winding, 67 - permanent magnet, 68 - conductive slip ring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] See also Figure 1 The present application provides a gearbox transmission device, comprising a first box body 1, a notch for installing a second box body 2 being provided on one side of the first box body 1, and a first blind hole being provided on the side of the second box body 2 facing the first box body 1; an input shaft 3 being rotatably connected to the first box body 1, and an output end of the input shaft 3 being located in the first blind hole; a first output shaft 4 being rotatably connected to the first box body 1, and the first output shaft 4 and the input shaft 3 being transmission-connected via a connecting piece; a second output shaft 5 being rotatably connected to the second box body 2, and the second output shaft 5 being transmission-connected to the output end of the input shaft 3 via a magnetic gear assembly 6, and the magnetic gear assembly 6 establishing a signal connection with the control module so as to be able to interrupt or restart the power output of the second output shaft 5.

[0038] Specifically, a notch is provided on the left side of the first housing 1 for installing and fixing the second housing 2. The right side of the second housing 2 facing the first housing 1 is provided with a first blind hole, and the output end of the input shaft 3 extends into the first blind hole of the second housing 2.

[0039] The first output shaft 4 is also rotatably connected to the first housing and is connected to the input shaft 3 via a connecting piece to achieve direct power transmission.

[0040] The second output shaft 5 is rotatably connected to the second housing and is connected to the output end of the input shaft 3 via a magnetic gear assembly, thereby realizing contactless transmission of power.

[0041] The magnetic gear assembly 6 uses magnetic force to achieve contactless transmission of power and establishes a signal connection with the control module, allowing the control module to interrupt or restart the power output of the second output shaft 5 as needed.

[0042] Working principle:

[0043] Power is input from input shaft 3 and transmitted to first output shaft 4 through a connector, achieving direct power transmission. Simultaneously, power is also transmitted to second output shaft 5 via magnetic gear assembly 6, achieving contactless power transmission. The control module controls the operating state of magnetic gear assembly 6 via signals based on user input, thereby interrupting or restarting power output from second output shaft 5.

[0044] In summary, the gearbox transmission device provided in the present application can selectively cut off or connect the power output of another output shaft as needed while maintaining continuous power output of one output shaft, greatly improving the applicability and flexibility of small-size gearboxes. The control module adjusts the working state of the magnetic gear assembly, thereby improving the flexibility and controllability of the transmission device.

[0045] Based on the above embodiments, see Figure 2-Figure 3 The magnetic gear assembly 6 includes a retaining member 61, which is assembled in the first blind hole, and a second blind hole 62 and a third blind hole 63 are symmetrically provided on both sides of the retaining member 61; a first mounting bracket 64, which is rotatably connected in the second blind hole 62, and the middle part of the first mounting bracket 64 is fixedly connected to the end of the second output shaft 5; a second mounting bracket 65, which is rotatably connected in the third blind hole 63, and the second mounting bracket 65 is fixedly connected to the end of the input shaft 3, and a first mounting groove and a second mounting groove are correspondingly provided on the opposite sides of the first mounting bracket 64 and the second mounting bracket 65; an excitation winding 66, a plurality of excitation windings 66 are embedded in the side of the first mounting bracket 64 facing the second mounting bracket 65; a permanent magnet 67, a plurality of permanent magnets 67 are embedded in the side of the second mounting bracket 65 facing the first mounting bracket 64; a conductive slip ring 68, which is fixedly provided on the outer wall of the second box body 2, the conductive slip ring 68 is electrically connected to the power supply cable, and the center hole of the conductive slip ring 68 is for the second output shaft 5 to pass through.

[0046] Specifically, the retaining member 61 is assembled in the center of the first blind hole, and a second blind hole 62 and a third blind hole 63 are symmetrically provided on both sides of the retaining member 61. The first mounting bracket 64 is rotatably connected in the second blind hole 62, and its center is fixedly connected to the end of the second output shaft 5. The second mounting bracket 65 is rotatably connected in the third blind hole 63 and fixedly connected to the end of the input shaft 3. The retaining member 61 ensures the spacing between the first mounting bracket 64 and the second mounting bracket 65, as well as the stability of the posture during movement.

[0047] The conductive slip ring 68 is fixed to the outer wall of the second box body and is electrically connected to the power supply cable. The center hole thereof is for the second output shaft 5 to pass through, ensuring that the rotation of the second output shaft 5 is not affected while power is transmitted. The function of the conductive slip ring 68 is to provide the electric energy required by the excitation winding 66 and ensure the continuous transmission of electric energy during the rotation process.

[0048] Working Principle: When the input shaft 3 rotates, it drives the second mounting bracket 65 to rotate, which in turn drives the permanent magnet 67 to rotate. Simultaneously, the magnetic field generated by the energized excitation winding 66 interacts with the magnetic field of the permanent magnet 67, generating magnetic coupling. This magnetic coupling enables the first mounting bracket 64 (connected to the second output shaft 5) to rotate as the second mounting bracket 65 rotates, thereby achieving contactless power transmission. The control unit can control the operating state of the magnetic gear assembly 6 by adjusting the energized state of the excitation winding 66, thereby interrupting or restarting the power output of the second output shaft 5.

[0049] Based on the above embodiment, the multiple excitation windings 66 and the multiple permanent magnets 67 are arranged in a ring-shaped manner. The purpose of setting the excitation winding 66 is to adjust the transmission efficiency by adjusting the current, voltage and number of winding turns.

[0050] Specifically, when adjacent field windings and permanent magnets are arranged in this manner, the interaction between each field winding and its corresponding permanent magnet produces one unit of mechanical motion. Therefore, if input shaft 3 (connected to the permanent magnets) rotates one unit, the second output shaft 5 (connected to the field windings) also rotates one unit, achieving a 1:1 transmission ratio.

[0051] The transmission ratio can be adjusted by varying the number or arrangement of the field windings. For example, if only two adjacent field windings interact with a permanent magnet (i.e., the magnetic fields generated by two adjacent field windings when energized are in opposite directions, and there is only one permanent magnet with opposite polarity between them), the achievable transmission ratio might be 1:2. This means that for every two units of rotation of the input shaft 3, the second output shaft 5 rotates only one unit.

[0052] Based on the above embodiment, the first mounting frame 64 and the second mounting frame 65 are both rotatably connected to the retaining member 61 through bearings. That is, the first mounting frame 64 is rotatably connected to the second blind hole 62 of the retaining member 61 through bearings, which means that the first mounting frame 64 can rotate freely in the retaining member 61 while maintaining its fixed position relative to the retaining member 61 (that is, it will not move axially); the second mounting frame 65 is also rotatably connected to the third blind hole 63 of the retaining member 61 through bearings.

[0053] Based on the above embodiment, a cooling cavity 21 is provided on the wall of the second housing 2. A connection port 22 is provided on the second housing 2, connected to both ends of the cooling cavity 21. The connection port 22 is in communication with the cooling circulation water circuit. Specifically, there are two connection ports 22, correspondingly connected to the input and output ends of the cooling cavity 21, to achieve continuous cooling of the second housing 2 and avoid demagnetization of the permanent magnet 67 due to excessive temperature. The two connection ports 22 are respectively connected to corresponding parts of the cooling circulation water circuit, forming a closed coolant circulation system. The system generally includes a coolant pump, a radiator (or heat exchanger), pipes, and joints. Operation: After the coolant pump is started, coolant is drawn from the radiator and enters the cooling cavity 21 through the pipe and the connection port 22 at the input end. In the cooling cavity 21, the coolant absorbs heat from the second housing 2 and its internal components, then flows through the connection port 22 at the output end and returns to the radiator for heat dissipation. The coolant after heat dissipation is pumped out again by the coolant pump and re-enters the cooling cavity 21 for circulation, thereby preventing the permanent magnet 67 from being demagnetized due to excessive temperature.

[0054] Based on the above embodiment, the input end of the input shaft 3, the output ends of the first output shaft 4 and the second output shaft 5 are all provided with connecting flanges 7, which facilitates the connection of the input end of the input shaft 3, the output ends of the first output shaft 4 and the second output shaft 5 with the corresponding transmission components to maintain stable power transmission.

[0055] Based on the above embodiment, the connecting member includes a first gear 31 fixed to the input shaft 3 and a second gear 41 fixed to the first output shaft 4 , and the first gear 31 and the second gear 41 are meshed with each other.

[0056] That is to say, the first gear 31 is firmly fixed on the input shaft 3 , and key connection, spline connection, interference fit or threaded connection can be used to ensure the firmness and stability of the first gear 31 on the input shaft 3 .

[0057] The fixing of the second gear 41 is similar to that of the first gear 31 , and the second gear 41 is also firmly fixed on the first output shaft 4 .

[0058] The first gear 31 and the second gear 41 mesh together to transmit torque. When the input shaft 3 rotates due to an external driving force, the first gear 31 rotates accordingly. Because the first gear 31 and the second gear 41 are meshed with each other, the second gear 41 also rotates due to the torque. This torque is then transmitted from the input shaft 3 to the first output shaft 4 through the meshing of the first gear 31 and the second gear 41, causing the first output shaft 4 to rotate.

[0059] Other mechanical elements can also be used for meshing transmission, such as bevel gears, turbines, and worms to achieve transmission connection.

[0060] On the basis of the above embodiment, the first box body 1 and the second box body 2 are connected by bolts; a sealing ring is provided between the first box body 1 and the second box body 2.

[0061] Specifically, bolts are used to connect the first box body 1 and the second box body 2, so as to ensure that the connection between them is firm and reliable and can withstand a certain tension and pressure.

[0062] A sealing ring is provided between the first box body 1 and the second box body 2 to ensure the sealing of the second box body 2. The sealing ring is made of elastic material, such as rubber, plastic or metal, and can form a tight sealing surface between the two boxes.

[0063] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0064] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A gearbox transmission device, characterized in that: include: A first box body (1), wherein a notch for mounting a second box body (2) is provided on one side of the first box body (1), and a first blind hole is provided on a side of the second box body (2) facing the first box body (1); An input shaft (3) is rotatably connected to the first housing (1), and an output end of the input shaft (3) is located in the first blind hole; A first output shaft (4) is rotatably connected to the first housing (1), and the first output shaft (4) is transmission-connected to the input shaft (3) via a connecting member; The second output shaft (5) is rotatably connected to the second housing (2). The second output shaft (5) is transmission-connected to the output end of the input shaft (3) via a magnetic gear assembly (6). The magnetic gear assembly (6) establishes a signal connection with the control module so as to be able to interrupt or restart the power output of the second output shaft (5).

2. The gearbox transmission device according to claim 1, characterized in that: The magnetic gear assembly (6) comprises: A retaining member (61) is assembled in the first blind hole, and a second blind hole (62) and a third blind hole (63) are symmetrically provided on both sides of the retaining member (61); A first mounting bracket (64) is rotatably connected to the second blind hole (62), and a middle portion of the first mounting bracket (64) is fixedly connected to an end portion of the second output shaft (5); A second mounting bracket (65) is rotatably connected to the third blind hole (63), and the second mounting bracket (65) is fixedly connected to the end of the input shaft (3); Excitation windings (66), a plurality of the excitation windings (66) are embedded in a side of the first mounting frame (64) facing the second mounting frame (65); Permanent magnets (67), a plurality of the permanent magnets (67) are embedded in a side of the second mounting frame (65) facing the first mounting frame (64); A conductive slip ring (68) is fixedly mounted on the outer wall of the second box body (2); the conductive slip ring (68) is electrically connected to the power supply cable; and a central hole of the conductive slip ring (68) is provided for the second output shaft (5) to pass through.

3. The gearbox transmission device according to claim 2, characterized in that: The first mounting frame (64) and the second mounting frame (65) are both rotatably connected to the retaining member (61) via bearings.

4. The gearbox transmission device according to claim 3, characterized in that: A cooling cavity (21) is provided on the wall of the second box body (2), and a connecting port (22) connected to both ends of the cooling cavity (21) is provided on the second box body (2), and the connecting port (22) is communicated with a cooling circulation water circuit.

5. The gearbox transmission device according to claim 1, characterized in that: The input end of the input shaft (3), the output ends of the first output shaft (4) and the second output shaft (5) are all provided with connecting flanges (7).

6. The gearbox transmission device according to claim 1, characterized in that: The connecting member comprises a first gear (31) fixed to the input shaft (3) and a second gear (41) fixed to the first output shaft (4), and the first gear (31) and the second gear (41) are meshed with each other.

7. The gearbox transmission device according to claim 6, characterized in that: The first box body (1) and the second box body (2) are connected by bolts.

8. The gearbox transmission device according to claim 7, characterized in that: A sealing ring is provided between the first box body (1) and the second box body (2).

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