Motor driving mechanism with disc type torsion damper

Abstract

The utility model relates to the technical field of motor damping, and discloses a motor driving mechanism with a disc type torsion damper, which comprises a motor, a transmission shaft and a gear box, one end of the transmission shaft is connected with the output end of the motor, and the other end of the transmission shaft is connected with the gear box so as to transmit power of the motor to the gear box; the shock absorber is installed at the output end of the motor, and one end of the transmission shaft is connected with the output end of the motor through the shock absorber to achieve torsional shock absorption; the damper comprises a damping disc assembly and a connecting shaft, the damping disc assembly is connected with the output end of the motor, and the motor can drive the damping disc assembly to rotate; the connecting shaft is coaxially connected with the damping disc assembly, the connecting shaft is connected with one end of the transmission shaft, and the damping disc assembly can drive the connecting shaft to rotate so that the transmission shaft can rotate and transmit to the gearbox. The shock absorber can reduce torque fluctuation, so that impact force borne by the gear box is greatly reduced, abrasion and failure rate of the gear box are reduced, and the service life of the gear box is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor damping technical field especially relates to a motor drive mechanism with disc type torsional damper. BACKGROUND

[0002] As an important part of modern transportation, electric vehicles, whose core power source - motor drive mechanism determines the performance of electric vehicles. With the improvement of environmental awareness and the progress of science and technology, electric vehicles become the key to promote the green transformation of the automobile industry. The motor drive mechanism of electric vehicles converts electrical energy into mechanical energy efficiently, directly drives the gear box, and then transmits power to the wheels to realize the running of the vehicle. In this process, the torque output by the motor is one of the key parameters, which is directly related to the acceleration performance, climbing ability and driving stability of the vehicle. However, in practical application, the torque output by the motor often fluctuates, which not only affects the driving experience of electric vehicles, but also easily causes adverse effects on the gear box.

[0003] When the torque output by the motor fluctuates, the teeth of the gear will be subjected to periodic uneven stress and impact force, resulting in a large noise during the operation of the gear box, and in severe cases, it may even cause early wear or damage to the gear, thereby shortening the service life of the gear and increasing the maintenance cost of the vehicle. In addition, torque fluctuation may also cause other damage to the power transmission system of electric vehicles, such as accelerated bearing wear and seal failure, further affecting the overall performance and safety of the vehicle. SUMMARY

[0004] The purpose of the utility model is to provide a motor drive mechanism with disc type torsional damper to solve the problem that the fluctuation of the torque output by the traditional motor easily damages the gear box.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A motor drive mechanism with disc type torsional damper, comprising: a motor, a transmission shaft and a gear box, one end of the transmission shaft is connected with the output end of the motor, the other end is connected with the gear box, so as to transmit the power of the motor to the gear box; a damper, the damper is installed on the output end of the motor, one end of the transmission shaft is connected with the output end of the motor through the damper, so as to realize torsional damping; the damper comprises a damping disc assembly and a connecting shaft, the damping disc assembly is connected with the output end of the motor, and the motor can drive the damping disc assembly to rotate; the connecting shaft is coaxially connected with the damping disc assembly, and the connecting shaft is connected with one end of the transmission shaft, so that the damping disc assembly can drive the connecting shaft to rotate, so that the transmission shaft rotates and drives the gear box.

[0007] According to the above technical means, the damping disc assembly is directly connected with the motor output end, can rotate with the motor, and is used for absorbing and dispersing torque fluctuation.

[0008] In the utility model, since the shock absorber can reduce torque fluctuation, the impact force borne by the gears and bearings and other components in the gear box is greatly reduced, the wear and failure rate of the gear box are reduced, and the service life is significantly prolonged.

[0009] Further, the damping disc assembly comprises a driving disc, a driven disc and a spring, the driving disc is connected with the motor output end, and the motor can drive the driving disc to rotate; the driven disc is coaxially arranged with the driving disc, and the driven disc is connected with the driving disc through the spring, and the spring is used for buffering the impact force between the driven disc and the driving disc.

[0010] According to the above technical means, the driving disc is directly connected with the motor output end, and the direct transmission of power can be ensured. The driven disc is connected with the driving disc through the spring, and a flexible connection system is formed. When the torque output by the motor fluctuates, the spring can absorb the fluctuation and reduce the direct impact force on the driven disc, so that efficient torsional damping is realized. At the same time, the buffering effect of the spring can reduce the vibration and noise in the transmission system, improve the stability and reliability of the whole system, and prolong the service life of the driving disc and the driven disc.

[0011] Further, the number of the springs is multiple, each spring is annularly distributed on the driving disc, so that each spring can be driven to rotate when the driving disc rotates; the axis of each spring is tangent to the rotation direction, and each spring abuts against the driven disc, so that each spring can drive the driven disc to rotate in the rotation process of the driving disc.

[0012] According to the above technical means, the annular distribution of the multiple springs enables the damping disc assembly to absorb and disperse energy from multiple directions when torque fluctuation is borne, improves the uniformity and efficiency of damping, and makes the rotation of the driven disc more stable. Since the axis of the spring is tangent to the rotation direction, the spring can more effectively absorb and transmit torque when the driving disc rotates, reduce the system vibration and noise caused by torque fluctuation, and improve the stability of the whole motor driving mechanism.

[0013] Further, a plurality of first through holes are formed in the driving disc, and each first through hole is annularly distributed; each first through hole is matched with each spring, so that each spring can be installed in each first through hole.

[0014] According to the above technical means, the first through hole provides an accurate positioning point for the spring, ensuring that each spring can be accurately installed on the transmission disc, helping to maintain uniform spacing between the springs, preventing the spring from shifting or falling off during transmission, thereby enhancing the overall stability and reliability. At the same time, the utility model discloses a spring installed in the first through hole, forming a more secure connection between the transmission disc and the spring, which helps to enhance the structural rigidity of the transmission disc, allowing it to maintain a more stable shape and position when subjected to torque and vibration, thereby improving the durability and reliability of the entire transmission system.

[0015] Further, the driven disc is formed with a plurality of grooves, and each groove is annularly distributed along the rotation direction of the driven disc; each groove is matched with each spring, and the two ends of each spring can abut on the inner wall of each groove, so that during the rotation of the transmission disc, each spring is squeezed to drive the rotation of the driven disc.

[0016] According to the above technical means, the groove provides accurate positioning and guiding function for the spring. During transmission, the two ends of the spring can stably abut on the inner wall of the groove, ensuring that the spring can transmit torque along the predetermined path when being squeezed, so as to reduce friction and wear during transmission and improve transmission efficiency. The design of the groove provides more stable support for the spring. The two ends of the spring are limited in the groove, preventing the spring from moving laterally or falling off during transmission, which helps to maintain the elastic performance and transmission stability of the spring and prolong the service life of the spring.

[0017] Further, the number of driven discs is two, and the two driven discs are installed on the two sides of the transmission disc to cover the plurality of springs on the transmission disc.

[0018] According to the above technical means, the two driven discs cover the springs from the two sides of the transmission disc, providing comprehensive protection and support for the springs, preventing the springs from being disturbed and damaged by the external environment such as dust, moisture, vibration, etc. during transmission, thereby prolonging the service life of the springs. At the same time, the covering effect of the driven disc also enhances the support stability of the spring, reducing the deformation and failure of the spring due to uneven stress.

[0019] Further, the shock disc assembly further comprises a shaft sleeve, the shaft sleeve is installed on the driven disc and is coaxially connected with the driven disc; the shaft sleeve is used for sleeving on the connecting shaft, so that the driven disc can drive the connecting shaft to rotate during rotation.

[0020] According to the above technical means, the shaft sleeve serves as a connecting medium between the driven disc and the connecting shaft, ensuring coaxial connection between the two, to reduce vibration and noise generated during transmission and enhance the stability of transmission.

[0021] Further, the shaft sleeve is formed with an inner spline, and the connecting shaft is formed with an outer spline, the inner spline and the outer spline are matched to enable the driven disc to drive the connecting shaft to rotate.

[0022] According to the above technical means, the matching design of the inner spline and the outer spline ensures the close connection between the shaft sleeve and the connecting shaft, has good torsional resistance and shear strength, thereby enhancing the stability of the transmission connection.

[0023] Further, the shock absorber further comprises a cover and an end cover, the cover is spliced with the end cover to form a cavity, the shock absorber disc assembly and the connecting shaft are installed in the cavity, a second through hole is formed on the cover, the motor output end can pass through the second through hole and be connected with the shock absorber disc assembly, one end of the connecting shaft penetrates out of the end cover and is connected with one end of the transmission shaft.

[0024] According to the above technical means, the splicing design of the cover and the end cover can form a closed cavity, which provides good protection for the shock absorber disc assembly and the connecting shaft, prevents the invasion of external dust, moisture and other impurities.

[0025] Further, the shock absorber further comprises a motor connecting flange, the motor connecting flange is installed in the cavity, the shock absorber disc assembly is connected with the motor output end through the motor connecting flange, a first bearing is arranged on the motor connecting flange, a second bearing is arranged on the end cover, and the connecting shaft is connected with the first bearing and the second bearing at both ends.

[0026] According to the above technical means, the motor connecting flange serves as a connecting bridge between the motor output end and the shock absorber disc assembly, ensuring the stability and precision of the transmission. Through the flange connection, the vibration and noise caused by loose connection or misalignment can be reduced, and the performance of the whole transmission system can be improved.

[0027] The utility model realizes the beneficial effect:

[0028] The damping disc assembly is directly connected with the motor output end, can rotate together with the motor, and is used for absorbing and dispersing torque fluctuation.

[0029] In the utility model, the shock absorber can reduce torque fluctuation, the impact force borne by the gear and bearing and other components in the gear box is greatly reduced, the wear and failure rate of the gear box are reduced, and the service life is significantly prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the whole structure schematic view of the utility model;

[0031] Figure 2 It is the shock absorber structure schematic view of the utility model;

[0032] Figure 3 It is the structure schematic view of the transmission disc and one side driven disc of the utility model;

[0033] Figure 4 It is the structure schematic view of the transmission disc and two side driven discs of the utility model;

[0034] 1, motor;

[0035] 2, transmission shaft;

[0036] 3, gear box;

[0037] 4, shock absorber;41, damping disc assembly;411, transmission disc;4111, first through hole;412, driven disc;4121, recess;413, spring;414, shaft sleeve;42, connecting shaft;43, face shield;431, second through hole;44, end cover;45, cavity;46, motor connecting flange;47, first bearing;48, second bearing;

[0038] 5, first flange plate;

[0039] 6, second flange plate.

[0040] The drawings are only used for example description, and can not be understood as the limitation of the patent;In order to better illustrate the embodiment, some components in the drawings can be omitted, enlarged or reduced, and the size of the actual product is not represented;For those skilled in the art, it can be understood that some well-known structures and their description in the drawings can be omitted;The same or similar signs correspond to the same or similar components;The position relation described in the drawings is only used for example description, and can not be understood as the limitation of the patent. DETAILED DESCRIPTION

[0041] It should be noted that the embodiments and technical features in the present application can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as the explanation and illustration of the purpose, technical solutions and advantages of the present application, and should not be regarded as improper limitation on the present application.

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below with reference to the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0043] In the embodiments of the present application, the terms "first", "second" are only used for description purpose, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0044] In the embodiments of the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.

[0045] In the embodiments of the present application, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitation, the element limited by the sentence "including one" does not exclude the existence of other same elements in the process, method, article or device including the element.

[0046] The technical solutions of the embodiments will be described in detail below with reference to specific drawings.

[0047] As Figure 1 and Figure 2As shown, the motor driving mechanism with disc type torsional damper provided in the embodiment comprises a motor 1, a transmission shaft 2 and a gear box 3, one end of the transmission shaft 2 is connected with the output end of the motor 1, the other end is connected with the gear box 3, so as to transmit the power of the motor 1 to the gear box 3; a damper 4, the damper 4 is installed at the output end of the motor 1, one end of the transmission shaft 2 is connected with the output end of the motor 1 through the damper 4, so as to realize torsional damping; the damper 4 comprises a damping disc assembly 41 and a connecting shaft 42, the damping disc assembly 41 is connected with the output end of the motor 1, the motor 1 can drive the damping disc assembly 41 to rotate; the connecting shaft 42 is coaxially connected with the damping disc assembly 41, the connecting shaft 42 is connected with one end of the transmission shaft 2, the damping disc assembly 41 can drive the connecting shaft 42 to rotate, so as to make the transmission shaft 2 rotate and transmit to the gear box 3.

[0048] In the specific driving process, the motor 1 serves as a power source and provides rotary power. When the motor 1 receives a starting signal, the internal electromagnetic field starts to act, driving the rotor to rotate. The output end of the motor 1 starts to rotate accordingly, generating initial power output.

[0049] The output end of the motor 1 is directly connected with the damping disc assembly 41 of the damper 4. When the output end of the motor 1 starts to rotate, the damping disc assembly 41 also rotates. At this time, the damping and buffering components (such as elastic components, preferably springs 413 in the embodiment) in the damping disc assembly 41 are in an initial state, ready to absorb possible torque fluctuations. When the power output by the motor 1 is transmitted to the damping disc assembly 41, if there are torque fluctuations, these fluctuations will be absorbed and dispersed by the damping disc assembly. The deformation inside the damping disc assembly 41 can store and release energy, thereby reducing the impact of torque fluctuations and achieving the effect of torsional damping.

[0050] While absorbing and dispersing torque fluctuations, the damping disc assembly 41 continues to drive the connecting shaft 42 coaxially connected thereto to rotate. One end of the connecting shaft 42 is fixedly connected with the damping disc assembly 41, and the other end is connected with one end of the transmission shaft 2. When the connecting shaft 42 rotates, it drives the transmission shaft 2 to rotate together. One end of the transmission shaft 2 is connected with the output end of the motor 1, and the other end is connected with the gear box 3. The transmission shaft 2 is used to transmit the power of the motor 1 to the gear box 3. In the gear box 3, the power is transmitted through a series of gear transmissions and speed changes, and finally output to the required driving components such as wheels, transmission shafts, etc., to drive the entire mechanical system to operate.

[0051] According to the above technical means, the damping disc assembly 41 in the utility model is directly connected with the output end of the motor 1 and can rotate together with the motor 1, and is used to absorb and disperse torque fluctuations. The connecting shaft 42 is coaxially connected with the damping disc assembly 41, and the power after damping is stably transmitted to the transmission shaft 2, so that the power transmitted to the gear box 3 is more stable.

[0052] In this embodiment, the shock absorber 4 can reduce torque fluctuations, so the impact force on the gears and bearings inside the gearbox 3 is greatly reduced, reducing the wear and failure rate of the gearbox 3, significantly extending its service life.

[0053] In this embodiment, the transmission shaft 2 is connected to the connecting shaft 42 and the gearbox 3 through the first flange plate 5 and the second flange plate 6 respectively, to ensure the stability and continuity of power transmission, effectively preventing power transmission interruption caused by loose or broken connection.

[0054] Further, the shock absorber plate assembly 41 includes a driving plate 411, a driven plate 412 and a spring 413. The driving plate 411 is connected to the output end of the motor 1, and the motor 1 can drive the driving plate 411 to rotate. The driven plate 412 is coaxially arranged with the driving plate 411, and the driven plate 412 is connected to the driving plate 411 through the spring 413. The spring 413 is used to buffer the impact force between the driven plate 412 and the driving plate 411.

[0055] According to the above technical means, the driving plate 411 is directly connected to the output end of the motor 1, which can ensure the direct transmission of power. The driven plate 412 is connected to the driving plate 411 through the spring 413, forming a flexible connection system. When the torque output by the motor fluctuates, the spring 413 can absorb these fluctuations and reduce the direct impact force on the driven plate 412, thereby achieving efficient torsional damping. At the same time, the buffering effect of the spring 413 can reduce the vibration and noise in the transmission system, improve the stability and reliability of the entire system. The damping effect of the spring 413 reduces the direct impact and wear between the driving plate 411 and the driven plate 412, thereby prolonging the service life of these components.

[0056] In the specific damping process, when the motor 1 receives a start or run signal, the internal electromagnetic field begins to act, driving the rotor to rotate and thereby generating torque output. This torque is transmitted to the driving plate 411 in the shock absorber plate assembly 41 through the output end of the motor 1. When the torque fluctuation is transmitted to the driving plate 411, the driven plate 412 is connected to the driving plate 411 through the spring 413, and the spring 413 begins to play a buffering role. The elastic properties of the spring 413 can absorb and disperse the energy generated by the torque fluctuation, reducing the direct impact force on the driven plate 412. Under the buffering effect of the spring 413, the rotation of the driven plate 412 becomes relatively stable. Even if there is fluctuation in the torque on the driving plate 411, the driven plate 412 can maintain a relatively stable rotation state. The driven plate 412 is connected to the connecting shaft 42, so its stable rotation state can ensure that the power is smoothly transmitted to the transmission shaft 2. The transmission shaft 2 then transmits the power to the gearbox 3, completing the entire power transmission process.

[0057] During the continuous operation of the motor driving mechanism, the springs 413 in the damping disc assembly 41 can continuously absorb and dissipate the energy generated by the torque fluctuation, ensuring the stable rotation of the driven disc 412 and the transmission shaft 2.

[0058] Further, the plurality of springs 413 are annularly distributed on the transmission disc 411, so that the transmission disc 411 can drive the springs 413 to rotate when rotating; the axis of each spring 413 is tangent to the rotation direction, and each spring 413 abuts against the driven disc 412, so that the driven disc 412 can be driven to rotate by the springs 413 during the rotation of the transmission disc 411.

[0059] According to the above technical means, the annular distribution of the plurality of springs 413 enables the damping disc assembly 41 to absorb and dissipate energy from multiple directions when bearing the torque fluctuation, improving the uniformity and efficiency of damping and making the rotation of the driven disc 412 more stable. Since the axis of the spring 413 is tangent to the rotation direction, the spring 413 can more effectively absorb and transmit torque when the transmission disc 411 rotates, reducing system vibration and noise caused by torque fluctuation and improving the stability of the entire motor driving mechanism.

[0060] Further, the transmission disc 411 is formed with a plurality of first through holes 4111, and each first through hole 4111 is annularly distributed; each first through hole 4111 is matched with each spring 413, so that each spring 413 can be installed in each first through hole 4111.

[0061] According to the above technical means, the first through hole 4111 provides an accurate positioning point for the spring 413, ensuring that each spring 413 can be accurately installed on the transmission disc 411, which helps to maintain uniform spacing between the springs 413 and prevents the springs 413 from shifting or falling off during transmission, thereby enhancing the stability and reliability of the entire system. At the same time, by installing the spring 413 in the first through hole 4111, a more secure connection is formed between the transmission disc 411 and the spring 413, which helps to enhance the structural rigidity of the transmission disc 411, making it maintain a more stable shape and position when bearing torque and vibration, thereby improving the durability and reliability of the entire transmission system.

[0062] Further, the driven disc 412 is formed with a plurality of grooves 4121, and each groove 4121 is annularly distributed along the rotation direction of the driven disc 412; each groove 4121 is matched with each spring 413, and the two ends of each spring 413 can abut against the inner wall of each groove 4121, so that the driven disc 412 can be driven to rotate by the springs 413 during the rotation of the transmission disc 411.

[0063] According to the above technical means, the groove 4121 provides precise positioning and guiding function for the spring 413. During transmission, the two ends of the spring 413 can stably abut on the inner wall of the groove 4121, ensuring that the spring 413 can transmit torque along the predetermined path when being extruded, so as to reduce friction and wear during transmission and improve transmission efficiency. The design of the groove 4121 provides more stable support for the spring 413. The two ends of the spring 413 are limited in the groove 4121, preventing the spring 413 from moving laterally or falling off during transmission, which helps to maintain the elasticity of the spring 413 and the stability of the transmission, prolonging the service life of the spring 413.

[0064] During specific transmission, initially in the absence of external force, the spring 413 is in a natural state, and its two ends abut on the inner wall of the groove 4121 respectively. A certain gap is maintained between the transmission disc 411 and the driven disc 412, and there is no relative rotation. When the motor 1 acts on the transmission disc 411, the transmission disc 411 starts to rotate. Since the two ends of the spring 413 abut on the inner wall of the groove 4121 respectively, as the transmission disc 411 rotates, the spring 413 is extruded and starts to elastically deform.

[0065] The elastic deformation of the spring 413 generates a restoring force, which is transmitted to the driven disc 412 through the inner wall of the groove 4121. Since the spring 413 is uniformly distributed between the transmission disc 411 and the driven disc 412, the restoring force is also uniformly distributed, thereby achieving uniform transmission of torque. Under the action of the restoring force of the spring 413, the driven disc 412 starts to rotate.

[0066] The rotation direction of the driven disc 412 is the same as that of the transmission disc 411, and the rotation speed is determined by the degree of elastic deformation of the spring 413 and the size of the groove 4121. As the transmission disc 411 continues to rotate, the spring 413 is continuously extruded and restored, thereby continuously transmitting torque to the driven disc 412.

[0067] Further, the number of driven discs 412 is two, and the two driven discs 412 are respectively installed on both sides of the transmission disc 411 to cover the plurality of springs 413 on the transmission disc 411.

[0068] According to the above technical means, the two driven discs 412 respectively cover the springs 413 from both sides of the transmission disc 411, providing comprehensive protection and support for the springs 413, preventing the springs 413 from being disturbed and damaged by the external environment during transmission, such as dust, moisture, vibration, etc., thereby prolonging the service life of the springs 413. At the same time, the covering effect of the driven disc 412 also enhances the support stability of the spring 413, reducing the deformation and failure of the spring 413 due to uneven stress.

[0069] Further, the shock absorber 4 further comprises a face cover 43 and an end cover 44, the face cover 43 and the end cover 44 are spliced to form a cavity 45, the shock absorber disc assembly 41 and the connecting shaft 42 are installed in the cavity 45, the face cover 43 is provided with a second through hole 431, the output end of the motor 1 can pass through the second through hole 431 and be connected with the shock absorber disc assembly 41, and one end of the connecting shaft 42 penetrates out of the end cover 44 and is connected with one end of the transmission shaft 2.

[0070] According to the above technical means, the shaft sleeve 414 serves as a connecting medium between the driven disc 412 and the connecting shaft 42, ensuring coaxial connection between the two to reduce vibration and noise generated during transmission and enhance the stability of transmission.

[0071] Preferably, the shaft sleeve 414 is made of wear-resistant material, such as high-strength alloy or special plastic, so that the shaft sleeve 414 can resist wear and tear during long-term use, thereby optimizing the transmission efficiency of torque from the driven disc 412 to the connecting shaft 42. By reducing energy loss, the performance of the entire transmission system is improved.

[0072] Further, the shaft sleeve 414 is formed with internal splines, and the connecting shaft 42 is formed with external splines, the internal splines and the external splines are matched to enable the driven disc 412 to drive the connecting shaft 42 to rotate.

[0073] According to the above technical means, the matching design of the internal splines and the external splines ensures the close connection between the shaft sleeve 414 and the connecting shaft 42, with good torsional resistance and shear strength, thereby enhancing the stability of the transmission connection. At the same time, the spline connection can realize high-precision matching, reducing energy loss due to the matching gap, which helps to improve the precision and efficiency of transmission, so that the driven disc 412 can more accurately drive the connecting shaft 42 to rotate.

[0074] Further, the shock absorber 4 further comprises a face cover 43 and an end cover 44, the face cover 43 and the end cover 44 are spliced to form a cavity 45, the shock absorber disc assembly 41 and the connecting shaft 42 are installed in the cavity 45, the face cover 43 is provided with a second through hole 431, the output end of the motor 1 can pass through the second through hole 431 and be connected with the shock absorber disc assembly 41, and one end of the connecting shaft 42 penetrates out of the end cover 44 and is connected with one end of the transmission shaft 2.

[0075] According to the above technical means, the splicing design of the face cover 43 and the end cover 44 can form a closed cavity 45, which provides good protection for the shock absorber disc assembly 41 and the connecting shaft 42, preventing the intrusion of external dust, moisture and other impurities. At the same time, the second through hole 431 formed on the face cover 43 allows the output end of the motor 1 to pass through directly and be connected with the shock absorber disc assembly 41, improving the overall adaptability and flexibility, so that the motor 1 can be conveniently integrated with the shock absorber 4 to form a compact and efficient transmission system.

[0076] Further, the shock absorber 4 further comprises a motor connecting flange 46 installed in the cavity 45, and the shock disc assembly 41 is connected with the output end of the motor 1 through the motor connecting flange 46; the motor connecting flange 46 is provided with a first bearing 47, the end cover 44 is provided with a second bearing 48, and the connecting shaft 42 is connected with the first bearing 47 and the second bearing 48 at both ends.

[0077] According to the above technical means, the motor connecting flange 46 serves as a connecting bridge between the output end of the motor 1 and the shock disc assembly 41, ensuring the stability and precision of transmission. Through flange connection, vibration and noise caused by loose connection or misalignment can be reduced, and the performance of the entire transmission system can be improved. At the same time, the first bearing 47 and the second bearing 48 provide reliable support and carrying capacity for the connecting shaft 42 to withstand the radial and axial loads generated during transmission, preventing damage or failure caused by overload.

[0078] The above-mentioned sequence numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments. The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent flow transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A motor drive mechanism with a disc-type torsional damper, characterized in that, include: The motor (1), drive shaft (2) and gearbox (3) are provided. One end of the drive shaft (2) is connected to the output end of the motor (1), and the other end is connected to the gearbox (3) to transmit the power of the motor (1) to the gearbox (3). Shock absorber (4), the shock absorber (4) is installed at the output end of the motor (1), and one end of the transmission shaft (2) is connected to the output end of the motor (1) through the shock absorber (4) to achieve torsional shock absorption; The shock absorber (4) includes a shock absorber assembly (41) and a connecting shaft (42). The shock absorber assembly (41) is connected to the output end of the motor (1), and the motor (1) can drive the shock absorber assembly (41) to rotate. The connecting shaft (42) is coaxially connected to the shock absorber assembly (41) and is connected to one end of the transmission shaft (2). The shock absorber assembly (41) can drive the connecting shaft (42) to rotate, so that the transmission shaft (2) rotates and is transmitted to the gearbox (3).

2. The motor drive mechanism with a disc-type torsional damper according to claim 1, characterized in that, The shock absorber assembly (41) includes a transmission disc (411), a driven disc (412), and a spring (413). The transmission disc (411) is connected to the output end of the motor (1), and the motor (1) can drive the transmission disc (411) to rotate. The driven disc (412) is coaxially arranged with the transmission disc (411), and the driven disc (412) is connected to the transmission disc (411) through the spring (413). The spring (413) is used to buffer the impact force between the driven disc (412) and the transmission disc (411).

3. A motor drive mechanism with a disc-type torsional damper according to claim 2, characterized in that, There are multiple springs (413), and each spring (413) is arranged in a ring on the transmission disk (411) so that when the transmission disk (411) rotates, it can drive each spring (413) to rotate; the axis of each spring (413) is tangent to the direction of rotation, and each spring (413) abuts against the driven disk (412) so that when the transmission disk (411) rotates, the compression of each spring (413) can drive the driven disk (412) to rotate.

4. A motor drive mechanism with a disc-type torsional damper according to claim 3, characterized in that, The transmission disk (411) has a plurality of first through holes (4111) formed thereon, and each first through hole (4111) is arranged in a ring; each first through hole (4111) is adapted to each spring (413) so that each spring (413) can be installed in each first through hole (4111).

5. A motor drive mechanism with a disc-type torsional damper according to claim 3, characterized in that, The driven disk (412) has a plurality of grooves (4121) formed thereon, and each groove (4121) is arranged in a ring along the rotation direction of the driven disk (412). Each groove (4121) is adapted to each spring (413), and the two ends of each spring (413) can respectively abut against the inner wall of each groove (4121), so that during the rotation of the transmission disk (411), the compression of each spring (413) can drive the driven disk (412) to rotate.

6. A motor drive mechanism with a disc-type torsional damper according to claim 5, characterized in that, There are two driven discs (412), which are respectively installed on both sides of the transmission disc (411) to cover the multiple springs (413) on the transmission disc (411).

7. A motor drive mechanism with a disc-type torsional damper according to claim 2, characterized in that, The shock absorber assembly (41) further includes a bushing (414), which is mounted on the driven disk (412) and coaxially connected with the driven disk (412). The bushing (414) is used to be sleeved on the connecting shaft (42) so that the driven disk (412) can drive the connecting shaft (42) to rotate during rotation.

8. A motor drive mechanism with a disc-type torsional damper according to claim 7, characterized in that, An internal spline is formed on the bushing (414), and an external spline is formed on the connecting shaft (42). The internal spline and the external spline are adapted to each other so that the driven disk (412) can drive the connecting shaft (42) to rotate.

9. A motor drive mechanism with a disc-type torsional damper according to claim 1, characterized in that, The shock absorber (4) also includes a face mask (43) and an end cap (44), the face mask (43) and the end cap (44) being spliced ​​together to form a cavity (45); the shock absorber assembly (41) and the connecting shaft (42) are installed in the cavity (45); a second through hole (431) is formed on the face mask (43), the output end of the motor (1) can pass through the second through hole (431) and connect to the shock absorber assembly (41); one end of the connecting shaft (42) extends through the end cap (44) and is connected to one end of the transmission shaft (2).

10. A motor drive mechanism with a disc-type torsional damper according to claim 9, characterized in that, The shock absorber (4) also includes a motor connection flange (46), which is installed inside the cavity (45). The shock absorber assembly (41) is connected to the output end of the motor (1) through the motor connection flange (46). A first bearing (47) is provided on the motor connection flange (46), and a second bearing (48) is provided on the end cover (44). Both ends of the connecting shaft (42) are connected to the first bearing (47) and the second bearing (48).

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