Power assembly

Abstract

The invention belongs to the field of mechanical transmission, and particularly relates to a power assembly which comprises a lower hood, an upper hood and a driving motor, the upper hood is mounted at the top of the lower hood, all parts of the power assembly adopt modular design and are assembled in key connection, bolt fixing and other modes, and during mounting, the parts can be assembled step by step according to the sequence from inside to outside; and fault parts can be quickly positioned and replaced during disassembly, so that the maintenance time is greatly shortened, and the maintenance cost is reduced. The power assembly outputs power in a linear reciprocating mode and can adapt to various industrial scenes. Material conveying, wherein a push plate is driven to achieve intermittent material pushing, and the device is suitable for production line sorting, storage carrying and other scenes; processing and manufacturing: connecting a punch, a riveting tool and the like, and completing periodic punching and assembling actions to meet automatic processing requirements; and other reciprocating motion equipment such as packaging machinery and small punching equipment can flexibly adapt to power requirements under different working conditions by adjusting parameters (such as eccentric distance and rotating speed) of the eccentric driving block.

Description

Technical Field

[0001] The present invention belongs to the field of mechanical transmission, in particular to a powertrain. Background Art

[0002] The powertrain is a crucial core module in mechanical equipment, primarily responsible for the generation, transmission, and conversion of power. Specifically, it acts like the "heart" and "blood vessels" of mechanical equipment. On the one hand, through a series of sophisticated designs and constructions, it transforms the raw motion generated by the power source (such as the engine or electric motor) into the motion required for the equipment's actual operation, such as converting rotational motion into linear motion. On the other hand, it also undertakes the task of rationally distributing and transmitting power to the various actuators, ensuring the stable and efficient operation of the mechanical equipment. However, current powertrains present significant challenges in practical application. Regarding motion conversion, the reliance on complex, multi-stage mechanisms to achieve diverse motion requirements results in lengthy transmission chains, numerous parts, and a time-consuming, strictly sequenced assembly process. Regarding maintenance, the non-modular structure necessitates complete disassembly for inspection, resulting in lengthy single maintenance efforts, significantly increasing downtime costs and significantly driving up long-term operational expenses.

[0003] To this end, the present invention provides a powertrain. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The transmission mechanism that this invention relates to is that the cam is connected with the transmission mechanism, and the cam is connected with the transmission mechanism, and the cam is connected with the transmission mechanism, and the cam is connected with the transmission mechanism.

[0006] Preferably, the driven assembly includes driven support blocks arranged at the top of one end of the driving shaft and the bottom of the other end. There are four driven support blocks, two driven support blocks are located on both sides of the top of one end of the driving shaft, and two driven support blocks are located on both sides of the bottom of the other end of the driving shaft. The side wall of one end of the driven support block is provided with a support shaft seat, and the driven support block is rotatably provided on the support shaft seat. The support shaft seats are respectively installed on the inner side walls of the lower hood and the upper hood, and the side wall of the other end of the driven support block is rotatably provided with a force-bearing wheel.

[0007] Preferably, a side frame is fixed to the side wall of the driven support block, a connecting rod is provided inside the side frame, a spring is wound around the outside of the connecting rod, a shaft connecting frame is fixed to the end of the connecting rod facing the driving shaft, the shaft connecting frame is clamped on the outside of the driving shaft, a guide shaft is fixed to one end of the shaft connecting frame, guide wheels are provided on both sides of the guide shaft, and the guide wheels are rotatably arranged on the inner side walls of the lower hood and the upper hood.

[0008] Preferably, the eccentric driving block rotates to push the force-bearing rotating wheel to drive the driven supporting block to rotate with the supporting shaft seat as the axis, and the driven supporting block drives the rotating shaft connecting frame to move by pulling the connecting rod.

[0009] Preferably, the eccentric driving block consists of a fixed section, a connecting section and a pushing section. The fixed section is mounted on the driving shaft, the connecting section is fixed to the bottom of the fixed section, and the pushing section is fixed to the bottom of the connecting section.

[0010] Preferably, the driving shaft drives the fixed section to rotate the pushing section, and the pushing section drives the force-bearing rotating wheel to drive the driven support block to rotate with the supporting shaft seat as the axis.

[0011] Preferably, the rotating shaft connecting frame consists of a connecting frame section A, a connecting frame section B, a connecting frame section C, a connecting frame section D and a connecting rod. The connecting frame section A is fixed to the end of the guide shaft, one end of the connecting frame section A is fixed with the connecting frame section B, one end of the connecting frame section B is fixed with the connecting frame section C, one end of the connecting frame section C is fixed with the connecting frame section D, the side wall of the connecting frame section C is fixed with a connecting rod, and the connecting rod is fixedly connected to the connecting rod.

[0012] Preferably, section A of the connecting frame is perpendicular to the guide shaft, section A of the connecting frame is perpendicular to section B of the connecting frame, section B of the connecting frame is perpendicular to section C of the connecting frame, section C of the connecting frame is perpendicular to section D of the connecting frame, and section C of the connecting frame is perpendicular to the connecting rod.

[0013] Preferably, the connecting frame section B, the connecting frame section C and the connecting frame section D form a frame that is arranged outside the driving shaft.

[0014] The beneficial effects of the present invention are as follows: 1. The powertrain of the present invention features modular components (such as the drive shaft assembly and driven support block assembly) that are assembled through key connections, bolt fixation, and other methods. During installation, components can be assembled step by step in an "inside-first, outside-later" sequence. During disassembly, faulty components can be quickly located and replaced, significantly shortening maintenance time and reducing maintenance costs.

[0015] The powertrain outputs power in a linear reciprocating manner and is adaptable to a variety of industrial scenarios: Material conveying: drives the push plate to achieve intermittent material pushing, suitable for production line sorting, warehousing and transportation, etc. Processing and manufacturing: connecting punches, riveting tools, etc., completing periodic stamping and assembly actions to meet the needs of automated processing; Other reciprocating motion equipment: such as packaging machinery, small stamping equipment, etc., can flexibly adapt to the power requirements of different working conditions by adjusting the eccentric drive block parameters (such as eccentricity, speed, etc.).

[0016] 2. The power assembly of the present invention connects the driving pulley and the driven pulley through a belt drive, utilizing the friction transmission characteristics. It is not only simple in structure and low in cost, but also can effectively reduce vibration transmission by buffering the impact load during motor startup and operation through the elasticity of the belt. When the system is overloaded, the belt slips to prevent damage to the motor and transmission components due to overload, thereby improving equipment safety. The driving shaft converts the rotational motion into the reciprocating linear motion of the shaft connecting frame through the eccentric drive block, and the motion form conversion can be achieved without the need for a complex transmission mechanism. The coordinated design of the eccentric drive block and the driven support block enables the rotational power to be stably converted into linear power, which is suitable for working conditions such as stamping and pushing that require reciprocating motion. It has high power transmission efficiency and sensitive response.

[0017] 3. In the powertrain of this invention, the shaft connecting frame cooperates with the guide wheel via a guide shaft to convert sliding friction into rolling friction, significantly reducing motion resistance, minimizing component wear, and extending service life. The precise guidance of the guide wheel ensures a stable reciprocating trajectory for the bridge frame, preventing deviation or jamming, and improving system operating accuracy. The spring's elastic reset mechanism forms a closed loop with the eccentric drive block: when the eccentric drive block pushes the bridge frame, it compresses the spring to store potential energy. After losing thrust, the spring releases this potential energy to reset the bridge frame. This maintains continuous reciprocating motion without the need for an additional power source, ensuring the continuity and stability of system operation. The lower and upper hoods form a closed housing, mounted with bolts and gaskets, effectively blocking the ingress of dust and debris, protecting internal transmission components (such as gears and bearings) from external contamination, and reducing the risk of wear. The drive motor is connected to the hood via a shock-absorbing pad, reducing vibration transmission to the entire device, reducing operating noise, and improving the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 The overall structure of the present invention Figure 1 ; Figure 2 The overall structure of the present invention Figure 2 ; Figure 3 It is a partial structural cross-sectional view of the present invention; Figure 4 It is a local structure in the present invention Figure 1 ; Figure 5 It is a front view structural cross-sectional view of the present invention; Figure 6 It is a local structure in the present invention Figure 2 ; Figure 7 It is a local structure in the present invention Figure 3 ; Figure 8 It is a structural diagram of the powertrain assembly in the present invention.

[0020] In the figure: 1. Lower hood; 2. Upper hood; 3. Driving motor; 31. Driving pulley; 32. Driven pulley; 4. Gear; 5. Driving shaft; 6. Eccentric driving block; 601. Fixed section; 602. Connecting section; 603. Pushing section; 7. Driven support block; 71. Forced pulley; 72. Support shaft seat; 8. Shaft connecting frame; 801. Connecting frame section A; 802. Connecting frame section B; 803. Connecting frame section C; 804. Connecting frame section D; 805. Connecting rod; 81. Guide shaft; 82. Guide pulley; 83. Connecting rod; 84. Side frame; 85. Spring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 8As shown, the power assembly of the embodiment of the present invention includes a lower hood 1, an upper hood 2 and a drive motor 3. The upper hood 2 is installed on the top of the lower hood 1, and the lower hood 1 and the upper hood 2 form an equipment shell. A drive motor 3 is installed at one end of the lower hood 1, and a drive pulley 31 is installed on the rotating shaft of the drive motor 3 facing the end of the lower hood 1. A driven pulley 32 is connected to the upper part of the drive pulley 31 through a belt. The driven pulley 32 is located in the middle position of one end of the shell formed by the lower hood 1 and the upper hood 2. A drive shaft 5 is rotatably provided in the middle position inside the shell formed by the lower hood 1 and the upper hood 2. One end of the drive shaft 5 protrudes from one end of the shell formed by the lower hood 1 and the upper hood 2 and is fixedly connected to the driven pulley 32. The other end of the drive shaft 5 protrudes from the other end of the shell formed by the lower hood 1 and the upper hood 2 and is fixed with two gears 4. An eccentric drive block 6 is installed in the middle position of the drive shaft 5, and two sets of driven components are respectively provided at the top of one end of the drive shaft 5 and the bottom of the other end.

[0023] The driven assembly includes a driven support block 7 arranged at the top of one end of the driving shaft 5 and the bottom of the other end. There are four driven support blocks 7, two driven support blocks 7 are located on both sides of the top of one end of the driving shaft 5, and two driven support blocks 7 are located on both sides of the bottom of the other end of the driving shaft 5. The side wall of one end of the driven support block 7 is provided with a support shaft seat 72, and the driven support block 7 is rotatably provided on the support shaft seat 72. The support shaft seat 72 is respectively installed on the inner side walls of the lower hood 1 and the upper hood 2, and the side wall of the other end of the driven support block 7 is rotatably provided with a force-bearing wheel 71.

[0024] A side frame 84 is fixed to the side wall of the driven support block 7, a connecting rod 83 is provided inside the side frame 84, a spring 85 is wound around the outside of the connecting rod 83, a shaft connecting frame 8 is fixed to the end of the connecting rod 83 facing the driving shaft 5, the shaft connecting frame 8 is clamped on the outside of the driving shaft 5, a guide shaft 81 is fixed to one end of the shaft connecting frame 8, guide wheels 82 are provided on both sides of the guide shaft 81, and the guide wheels 82 are rotatably provided on the inner side walls of the lower hood 1 and the upper hood 2.

[0025] The eccentric driving block 6 rotates to push the force-bearing rotating wheel 71 to drive the driven supporting block 7 to rotate around the supporting shaft seat 72 as the axis. The driven supporting block 7 drives the rotating shaft connecting frame 8 to move by pulling the connecting rod 83.

[0026] The eccentric driving block 6 consists of a fixed section 601 , a connecting section 602 and a pushing section 603 . The fixed section 601 is mounted on the driving shaft 5 . The connecting section 602 is fixed to the bottom of the fixed section 601 , and the pushing section 603 is fixed to the bottom of the connecting section 602 .

[0027] The driving shaft 5 drives the fixed section 601 to rotate the pushing section 603 , and the pushing section 603 drives the force-bearing rotating wheel 71 to drive the driven support block 7 to rotate around the supporting shaft seat 72 as the axis.

[0028] The rotating shaft connecting frame 8 is composed of a connecting frame section A 801, a connecting frame section B 802, a connecting frame section C 803, a connecting frame section D 804 and a connecting rod 805. The connecting frame section A 801 is fixed to the end of the guide shaft 81, one end of the connecting frame section A 801 is fixed to the connecting frame section B 802, one end of the connecting frame section B 802 is fixed to the connecting frame section C 803, one end of the connecting frame section C 803 is fixed to the connecting frame section D 804, and the side wall of the connecting frame section C 803 is fixed to the connecting rod 805, which is fixedly connected to the connecting rod 83.

[0029] The connecting frame section A 801 is perpendicular to the guide shaft 81 , the connecting frame section A 801 is perpendicular to the connecting frame section B 802 , the connecting frame section B 802 is perpendicular to the connecting frame section C 803 , the connecting frame section C 803 is perpendicular to the connecting frame section D 804 , and the connecting frame section C 803 is perpendicular to the connecting rod 805 .

[0030] The connecting frame section B 802 , the connecting frame section C 803 and the connecting frame section D 804 form a frame that is disposed outside the driving shaft 5 .

[0031] Specifically, the drive motor 3 serves as the power source. When powered on, the electromagnetic system within the motor causes the rotor to rotate at high speed, which in turn drives the drive pulley 31 at its end to rotate synchronously. The drive pulley 31 is connected to the driven pulley 32 via a belt, a common friction transmission method. The belt creates tension between the two pulleys. When the drive pulley 31 rotates, the friction between the belt and the pulleys drives the driven pulley 32 to rotate. This transmission method has the advantages of simple structure, low cost, vibration damping, and slippage in the event of overload, thus protecting the equipment.

[0032] The driven pulley 32 is fixedly connected to the driving shaft 5, so the rotation of the driven pulley 32 is directly transmitted to the driving shaft 5, causing the driving shaft 5 to start rotating, thereby completing the initial transmission of power.

[0033] As the drive shaft 5 rotates, the eccentric drive block 6 mounted on it also rotates. The eccentric drive block 6 is offset from the central axis of the drive shaft 5. During rotation, it contacts and propels the force-bearing wheels 71 at one end of the four driven support blocks 7. When the eccentric drive block 6 rotates to a specific position, it exerts radial thrust on the force-bearing wheels 71.

[0034] A force-bearing wheel 71 is mounted on the driven support block 7, which is rotatably mounted on a support shaft seat 72 secured to the inner sidewalls of the lower hood 1 and upper hood 2. Under the thrust of the eccentric drive block 6, the force-bearing wheel 71 drives the driven support block 7 to rotate about the support shaft seat 72. As the driven support block 7 rotates, it pulls on a connecting rod 83 secured to its sidewall.

[0035] The connecting rod 83 is wrapped with a spring 85. When the driven support block 7 pulls the connecting rod 83, the spring 85 contracts under pressure, storing elastic potential energy. This process converts the rotational motion of the driving shaft 5 into the swinging motion of the driven support block 7 and the linear movement of the connecting rod 83.

[0036] As the eccentric drive block 6 continues to rotate, when it passes the position where it applies thrust to the force-bearing runner 71, the thrust on the force-bearing runner 71 disappears. At this time, the previously compressed spring 85 releases the stored elastic potential energy to restore its original shape, generating a reverse thrust on the connecting rod 83.

[0037] The reverse thrust of the spring 85 pushes the connecting rod 83 to move in the opposite direction, thereby driving the shaft connecting frame 8 to reset. As the driving shaft 5 continues to rotate, the eccentric driving block 6 will continuously repeat the above-mentioned pushing and disengaging process, so that the shaft connecting frame 8 can achieve reciprocating movement.

[0038] A guide shaft 81 is fixed to one end of the shaft connecting frame 8, and guide wheels 82 are provided on both sides of the guide shaft 81. The guide wheels 82 are rotatably arranged on the inner side walls of the lower hood 1 and the upper hood 2. When the shaft connecting frame 8 moves back and forth, the guide shaft 81 moves accordingly.

[0039] The guide wheel 82 is in contact with the guide shaft 81. As the guide shaft 81 moves, the guide wheel 82 rotates due to friction. This rolling friction, compared to sliding friction, offers less frictional resistance, effectively reducing obstacles to the movement of the guide shaft 81. It also provides precise guidance for the movement of the guide shaft 81, ensuring more stable and smooth reciprocating movement of the shaft connector 8, and improving the reliability and stability of the entire powertrain.

[0040] Furthermore, as the main components of the equipment housing, the lower hood 1 and upper hood 2 must ensure their dimensional accuracy and structural strength during manufacturing. The lower hood 1 is usually fixed to the equipment foundation or mounting platform using bolts and other fasteners to ensure its stable position. The upper hood 2 is sealed and installed using gaskets and bolts through the corresponding mounting holes of the lower hood 1, forming a relatively closed internal space. This not only protects the internal transmission components from external factors such as dust and debris, but also reduces operating noise to a certain extent.

[0041] Drive motor 3 is mounted at one end of lower hood 1 and connected to it via a shock-absorbing pad or other device to reduce the transmission of vibration generated by the motor during operation to the entire device. The rotating shaft of drive motor 3 is secured to drive pulley 31 via a key connection or interference fit to ensure reliable power transmission.

[0042] The driven pulley 32 and the drive shaft 5 are fixedly connected using a key connection, shoulder positioning, and a locking nut to ensure that the two do not move relative to each other during rotation. The drive shaft 5 is mounted on the lower hood 1 and upper hood 2 via bearings. The bearings provide support and a low-friction environment for the drive shaft 5 to rotate smoothly.

[0043] The eccentric drive block 6, gear 4 and other components are fixed to the drive shaft 5 through appropriate installation processes, such as key connection, shrink fitting, etc., to ensure synchronous rotation with the drive shaft 5. Suitable bearings or sleeves are used between the driven support block 7 and the support shaft seat 72 to achieve flexible rotation. The support shaft seat 72 is firmly mounted on the inner wall of the lower hood 1 and the upper hood 2 by welding or bolting.

[0044] During the assembly process, all parts must first be cleaned and quality checked to ensure there are no burrs, bumps, or damage. Assembly should be carried out in the order of inside first, outside second, bottom first, top second. For example, the drive shaft 5 and its components should be installed first, followed by the driven support block 7 and other related components.

[0045] After assembly is complete, perform a preliminary manual cranking check to ensure that all components rotate flexibly and without any jamming. Then perform electrical connections, connecting the drive motor 3 to the power supply and control system.

[0046] Perform no-load commissioning, start the drive motor 3, and observe the rotation of the drive shaft 5 and various components to check for abnormal noise, vibration, and other issues. Use measuring instruments to monitor parameters such as the speed of the drive shaft 5 and the stroke of the eccentric drive block 6 pushing the driven support block 7. Adjust and optimize according to design requirements.

[0047] Carry out load debugging. After the powertrain is connected to the load equipment, start it again and test its performance under actual working conditions, such as whether the power output meets the requirements, the stress and wear conditions of each component, etc. Further adjustments and improvements are made based on the test results to ensure that the powertrain can operate stably and efficiently.

[0048] Furthermore, in this power assembly, the rotation of the drive shaft 5 pushes the force-bearing wheel 71 through the eccentric drive block 6, causing the driven support block 7 to swing, which in turn drives the shaft connecting frame 8 to achieve reciprocating motion, converting the rotational power of the drive shaft 5 into linear reciprocating power. This power conversion can be adapted to workpieces that require linear reciprocating motion, providing a power source for them, such as driving some linear reciprocating processing tools and conveying devices.

[0049] In some mechanical equipment, specific process actions require components to perform reciprocating linear motion. For example, in a material pushing scenario, the reciprocating movement of the shaft connector 8 can drive components such as the push plate to achieve intermittent material pushing. In a process like stamping, a punch can be connected to complete the periodic stamping action to meet the process requirements of production.

[0050] This reciprocating motion, combined with the rotation of the eccentric drive block 6 and the expansion and contraction of the spring 85, forms a cyclical motion system. The eccentric drive block 6 pushes the shaft connecting frame 8 to move, and the spring 85 resets it, and this cycle continues, ensuring the continuous and stable operation of the power assembly and enabling the entire device to operate uninterrupted according to the established working mode.

[0051] like Figure 8 As shown in the figure, a is the linked power rack, b is the fuel-saving engine, c is the transmission, and d is the diesel engine. The five machine installation combinations for the linked racks are: installing one doubles the power, installing two quadruples it, installing three quadruples it, installing four quadruples it, and so on.

[0052] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A power assembly comprising a lower hood (1), an upper hood (2) and a drive motor (3), characterized in that: An upper hood (2) is installed on the top of the lower hood (1), and the lower hood (1) and the upper hood (2) form an equipment housing. A driving motor (3) is installed at one end of the lower hood (1), and a driving pulley (31) is installed on the rotating shaft of the driving motor (3) facing the end of the lower hood (1). A driven pulley (32) is connected to the upper part of the driving pulley (31) through a belt. The driven pulley (32) is located in the middle of one end of the housing formed by the lower hood (1) and the upper hood (2). ) is rotatably provided with a driving shaft (5) in the middle position inside the housing, one end of the driving shaft (5) protrudes from one end of the housing formed by the lower hood (1) and the upper hood (2) and is fixedly connected to the driven pulley (32), the other end of the driving shaft (5) protrudes from the other end of the housing formed by the lower hood (1) and the upper hood (2) and is fixed with two gears (4), an eccentric driving block (6) is installed in the middle position of the driving shaft (5), and two sets of driven components are respectively provided at the top of one end and the bottom of the other end of the driving shaft (5).

2. The powertrain according to claim 1, characterized in that: The driven component includes a driven support block (7) arranged at the top of one end and the bottom of the other end of the driving shaft (5), and four driven support blocks (7) are provided, two of the driven support blocks (7) are located on both sides of the top of one end of the driving shaft (5), and two of the driven support blocks (7) are located on both sides of the bottom of the other end of the driving shaft (5). A support shaft seat (72) is provided on the side wall of one end of the driven support block (7), and the driven support block (7) is rotatably arranged on the support shaft seat (72). The support shaft seat (72) is respectively installed on the inner side walls of the lower hood (1) and the upper hood (2), and a force-bearing wheel (71) is rotatably provided on the side wall of the other end of the driven support block (7).

3. The powertrain according to claim 2, characterized in that: A side frame (84) is fixed to the side wall of the driven support block (7), a connecting rod (83) is provided inside the side frame (84), a spring (85) is wound around the outside of the connecting rod (83), a shaft connecting frame (8) is fixed to the end of the connecting rod (83) facing the driving shaft (5), the shaft connecting frame (8) is clamped on the outside of the driving shaft (5), a guide shaft (81) is fixed to one end of the shaft connecting frame (8), guide wheels (82) are provided on both sides of the guide shaft (81), and the guide wheels (82) are rotatably provided on the inner side walls of the lower hood (1) and the upper hood (2).

4. The powertrain according to claim 3, characterized in that: The eccentric driving block (6) rotates to push the force-bearing rotating wheel (71) to drive the driven support block (7) to rotate with the support shaft seat (72) as the axis. The driven support block (7) drives the rotating shaft connecting frame (8) to move by pulling the connecting rod (83).

5. The powertrain according to claim 4, characterized in that: The eccentric driving block (6) is composed of a fixed section (601), a connecting section (602) and a pushing section (603); the fixed section (601) is mounted on the driving shaft (5); the connecting section (602) is fixed to the bottom of the fixed section (601); and the pushing section (603) is fixed to the bottom of the connecting section (602).

6. The powertrain according to claim 5, characterized in that: The driving shaft (5) drives the fixed section (601) to rotate the pushing section (603), and the pushing section (603) drives the force-bearing rotating wheel (71) to drive the driven support block (7) to rotate with the support shaft seat (72) as the axis.

7. The powertrain according to claim 6, characterized in that: The rotating shaft connecting frame (8) is composed of a connecting frame section A (801), a connecting frame section B (802), a connecting frame section C (803), a connecting frame section D (804) and a connecting rod (805). The connecting frame section A (801) is fixed to the end of the guide shaft (81), one end of the connecting frame section A (801) is fixed with the connecting frame section B (802), one end of the connecting frame section B (802) is fixed with the connecting frame section C (803), one end of the connecting frame section C (803) is fixed with the connecting frame section D (804), and a connecting rod (805) is fixed to the side wall of the connecting frame section C (803), and the connecting rod (805) is fixedly connected to the connecting rod (83).

8. The powertrain according to claim 7, characterized in that: The connecting frame section A (801) is perpendicular to the guide shaft (81), the connecting frame section A (801) is perpendicular to the connecting frame section B (802), the connecting frame section B (802) is perpendicular to the connecting frame section C (803), the connecting frame section C (803) is perpendicular to the connecting frame section D (804), and the connecting frame section C (803) is perpendicular to the connecting rod (805).

9. The powertrain according to claim 8, characterized in that: The connecting frame section B (802), the connecting frame section C (803) and the connecting frame section D (804) form a frame which is arranged outside the driving shaft (5).

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