booster

Abstract

The application relates to the field of power transmission technology, and particularly discloses a force amplifier, which comprises a driving crankshaft, a driven crankshaft, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first lever, a second lever and a lever base; two crank pins of the driving crankshaft are rotationally connected with the first connecting rod and the second connecting rod respectively; two crank pins of the driven crankshaft are rotationally connected with the third connecting rod and the fourth connecting rod respectively; and the first connecting rod is rotationally connected with the first lever at an end portion. In the application, the driving crankshaft-connecting rod-lever-driven crankshaft pure mechanical structure is adopted to stably realize input torque amplification at a fixed magnification, so that large torque output can be obtained without relying on a speed reduction gear box, a hydraulic system or increasing input power. Under the same load working condition, the power configuration of a driving motor can be significantly reduced, electric energy consumption can be reduced, and energy utilization rate can be improved. The rigid connection of the crankshaft, the connecting rod and the lever is adopted in the mechanism, transmission clearance is small, response is fast, and power transmission is direct without lag.

Description

Technical Field

[0001] This invention relates to the field of power transmission technology, and more particularly to power boosters. Background Technology

[0002] In existing power transmission equipment, conventional crankshaft connecting rod mechanisms can only convert rotary motion into linear motion and cannot amplify torque during power transmission. When the equipment requires high torque output, it usually relies on increasing the input power, adding a multi-stage reduction gearbox or a hydraulic booster system.

[0003] This approach has significant drawbacks: the gearbox has a complex structure, numerous parts, high assembly precision requirements, significant wear during operation, substantial energy loss, and high maintenance costs; the hydraulic system suffers from leakage, oil temperature rise, response lag, and poor stability; simply increasing the input power significantly increases energy consumption, which does not meet the development requirements of energy conservation and efficiency. Existing mechanisms cannot stably achieve torque amplification with a purely mechanical structure without significantly increasing the input power or relying on complex reduction or hydraulic systems. Therefore, to solve these problems, a torque multiplier mechanism has been proposed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a power-boosting mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The power booster includes a driving crankshaft, a driven crankshaft, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first lever, a second lever, and a lever base;

[0007] The two crank pins of the drive crankshaft are rotatably connected to the first connecting rod and the second connecting rod, respectively.

[0008] The two crank pins of the driven crankshaft are rotatably connected to the third and fourth connecting rods, respectively.

[0009] The end of the first link is rotatably connected to the first lever, and the end of the first lever is rotatably connected to the third link;

[0010] The end of the second link is rotatably connected to the second lever, and the end of the second lever is rotatably connected to the fourth link;

[0011] The first and second levers rotate together and are connected to the lever base.

[0012] Preferably, the two crank pins of the drive crankshaft are positioned 180° opposite each other, with one moving to its highest point while the other moves to its lowest point.

[0013] Preferably, the two crank pins of the driven crankshaft are positioned 180° opposite each other, with one moving to its highest point while the other moves to its lowest point.

[0014] Preferably, the lever base is a fixed support member that maintains a fixed position during use.

[0015] Preferably, the fulcrum of the first lever is the rotational connection point with the lever base, and the lever arm length from the fulcrum to the end of the first connecting rod is twice the lever arm length from the fulcrum to the end of the third connecting rod.

[0016] Preferably, the fulcrum of the second lever is the rotational connection point with the lever base, and the lever arm length from the fulcrum to the end of the second link is twice the lever arm length from the fulcrum to the end of the fourth link.

[0017] Preferably, the first link, the first lever, and the third link constitute a set of force-amplifying transmission units.

[0018] Preferably, the second link, the second lever, and the fourth link constitute another set of force-amplifying transmission units.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention utilizes a purely mechanical structure of active crankshaft-connecting rod-lever-driven crankshaft to stably amplify input torque at a fixed ratio, achieving high torque output without relying on a reduction gearbox, hydraulic system, or increasing input power. Under the same load conditions, it can significantly reduce the power configuration of the drive motor, reduce energy consumption, and improve energy utilization. The mechanism employs a rigid connection of crankshaft, connecting rod, and lever, resulting in small transmission clearance, fast response, and direct power transmission without lag, avoiding problems such as hydraulic leakage, oil temperature drift, and gear wear, thus greatly improving operational stability and reliability. The overall structure has fewer parts, a compact layout, and low assembly difficulty, eliminating the need for high-precision complex machining, reducing manufacturing costs and subsequent maintenance expenses. It exhibits significant efficiency advantages in low-speed, high-torque scenarios, balancing energy saving, stability, and economy, making it suitable for various applications such as industrial drives, mobile machinery, and power output devices.

[0021] 2. This invention employs dual-set power-amplifying transmission units, which effectively counteract the eccentric loads and vibrations generated by a single-sided mechanism, reducing operating noise and extending the overall service life of the machine. The two sets of units work synchronously and synergistically, providing uniform and continuous output torque and ensuring smooth rotation of the driven crankshaft. Both the lever fulcrum and connecting rod connections utilize revolute joints, resulting in low friction loss, high transmission efficiency, and stable long-term performance. The mechanism boasts strong adaptability; the driving crankshaft can directly connect to power sources such as motors and engines, while the driven crankshaft can directly drive loads such as wheels and working machines, eliminating the need for intermediate conversion mechanisms and simplifying the entire system. Attached Figure Description

[0022] Figure 1 This is a first-view structural schematic diagram of the booster proposed in this invention;

[0023] Figure 2 This is a structural schematic diagram of the booster proposed in this invention from a second perspective.

[0024] In the diagram: 1. Driving crankshaft; 2. Driven crankshaft; 3. First connecting rod; 4. Second connecting rod; 5. Third connecting rod; 6. Fourth connecting rod; 7. First lever; 8. Second lever; 9. Lever base. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] Reference Figure 1-2 The power booster includes a driving crankshaft 1, a driven crankshaft 2, a first connecting rod 3, a second connecting rod 4, a third connecting rod 5, a fourth connecting rod 6, a first lever 7, a second lever 8, and a lever base 9;

[0028] The two crank pins of the drive crankshaft 1 are rotatably connected to the first connecting rod 3 and the second connecting rod 4, respectively.

[0029] The two crank pins of the driven crankshaft 2 are rotatably connected to the third connecting rod 5 and the fourth connecting rod 6, respectively.

[0030] The end of the first link 3 is rotatably connected to the first lever 7, and the end of the first lever 7 is rotatably connected to the third link 5;

[0031] The end of the second link 4 is rotatably connected to the second lever 8, and the end of the second lever 8 is rotatably connected to the fourth link 6;

[0032] The first lever 7 and the second lever 8 are connected to the lever base 9 for rotation.

[0033] As a technical optimization of the present invention, the two crank pins of the active crankshaft 1 are positioned 180° opposite each other, and when one moves to the highest point, the other moves to the lowest point.

[0034] As a technical optimization of the present invention, the two crank pins of the driven crankshaft 2 are positioned 180° opposite each other, and when one moves to the highest point, the other moves to the lowest point.

[0035] As a technical optimization of the present invention, the lever base 9 is a fixed support member that keeps its position fixed during use.

[0036] As a technical optimization of the present invention, the fulcrum of the first lever 7 is the rotational connection point with the lever base 9, and the lever arm length from the fulcrum to the end of the first connecting rod 3 is twice the lever arm length from the fulcrum to the end of the third connecting rod 5.

[0037] As a technical optimization of the present invention, the fulcrum of the second lever 8 is the rotational connection point with the lever base 9, and the lever arm length from the fulcrum to the end of the second connecting rod 4 is twice the lever arm length from the fulcrum to the end of the fourth connecting rod 6.

[0038] As a technical optimization of the present invention, the first link 3, the first lever 7, and the third link 5 constitute a set of force-increasing transmission units.

[0039] As a technical optimization of the present invention, the second link 4, the second lever 8, and the fourth link 6 constitute another set of force-enhancing transmission units.

[0040] This torque multiplier is based on a crankshaft connecting rod mechanism and lever amplification principle. It inputs rotational power through the driving crankshaft 1, which is transmitted via connecting rods to drive the lever to oscillate around a fixed fulcrum. The connecting rod on the other side then drives the driven crankshaft 2 to rotate, thus amplifying the torque output. In use, the lever base 9 remains fixed, serving as a stable support fulcrum for the first lever 7 and the second lever 8. The driving crankshaft 1 is connected to an external power source such as a motor, which drives its continuous rotation. The driven crankshaft 2 is connected to external loads such as tires or a working machine, outputting the amplified torque.

[0041] When the driving crankshaft 1 rotates, its two crank pins, which are 180° opposite each other, perform synchronous counter-clockwise circular motions: when one crank pin reaches its highest point, the other crank pin reaches its lowest point. When the left crank pin of the driving crankshaft 1 rotates upward, it drives the first connecting rod 3 to move upward. The first connecting rod 3 pulls the first lever 7 to swing upward with the connection point of the lever base 9 as the fulcrum. Since the lever arm from the fulcrum of the first lever 7 to the end of the first connecting rod 3 is twice the lever arm from the fulcrum to the end of the third connecting rod 5, according to the lever principle, the right end of the first lever 7 moves downward with a greater torque, pushing the third connecting rod 5 downward and driving the left crank pin of the driven crankshaft 2 to rotate downward.

[0042] At the same time, the right crank pin of the driving crankshaft 1 rotates downward, pushing the second connecting rod 4 to move downward. The second connecting rod 4 pushes the second lever 8 to swing downward with the connection point of the lever base 9 as the fulcrum. The lever arm from the fulcrum of the second lever 8 to the end of the second connecting rod 4 is also twice the lever arm from the fulcrum to the end of the fourth connecting rod 6. The right end of the second lever 8 moves upward with a greater torque, pulling the fourth connecting rod 6 to move upward, driving the right crank pin of the driven crankshaft 2 to rotate upward.

[0043] The driving crankshaft 1 rotates continuously, and the two crank pins move up and down alternately, driving the first connecting rod 3 and the second connecting rod 4 to push and pull the first lever 7 and the second lever 8 to swing around the fulcrum. The first lever 7 and the second lever 8 amplify the torque input from the driving crankshaft 1 with a fixed force multiplier, and then transmit it to the driven crankshaft 2 through the third connecting rod 5 and the fourth connecting rod 6. The two crank pins of the driven crankshaft 2 are subjected to force alternately, forming a continuous and uniform rotational driving force to ensure that the output torque is stable and without fluctuations.

[0044] Throughout the process, the power transmission path is clear: the driving crankshaft 1 rotates → the first connecting rod 3 / second connecting rod 4 reciprocates linearly → the first lever 7 / second lever 8 oscillates around the fulcrum to amplify force → the third connecting rod 5 / fourth connecting rod 6 reciprocates linearly → the driven crankshaft 2 rotates to output power. The lever base 9 remains fixed, providing stable support for the lever and ensuring that the lever arm length remains constant and the force amplification ratio is constant. The mechanism achieves torque amplification in a purely mechanical manner, with no energy conversion loss and high transmission efficiency.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A power-boosting machine, characterized in that, It includes a driving crankshaft (1), a driven crankshaft (2), a first connecting rod (3), a second connecting rod (4), a third connecting rod (5), a fourth connecting rod (6), a first lever (7), a second lever (8), and a lever base (9); The two crank pins of the drive crankshaft (1) are rotatably connected to the first connecting rod (3) and the second connecting rod (4), respectively. The two crank pins of the driven crankshaft (2) are respectively rotatably connected to the third connecting rod (5) and the fourth connecting rod (6); The end of the first link (3) is rotatably connected to the first lever (7), and the end of the first lever (7) is rotatably connected to the third link (5); The end of the second link (4) is rotatably connected to the second lever (8), and the end of the second lever (8) is rotatably connected to the fourth link (6); The first lever (7) and the second lever (8) rotate together and are connected to the lever base (9).

2. The booster according to claim 1, characterized in that, The two crank pins of the active crankshaft (1) are positioned 180° opposite each other, with one moving to the highest point while the other moves to the lowest point.

3. The booster motor according to claim 1, characterized in that, The two crank pins of the driven crankshaft (2) are positioned 180° apart, with one moving to the highest point while the other moves to the lowest point.

4. The booster according to claim 1, characterized in that, The lever base (9) is a fixed support component that maintains a fixed position during use.

5. The booster motor according to claim 1, characterized in that, The fulcrum of the first lever (7) is the rotational connection point with the lever base (9), and the lever arm length from the fulcrum to the end of the first link (3) is twice the lever arm length from the fulcrum to the end of the third link (5).

6. The booster according to claim 1, characterized in that, The fulcrum of the second lever (8) is the rotational connection point with the lever base (9), and the lever arm length from the fulcrum to the end of the second link (4) is twice the lever arm length from the fulcrum to the end of the fourth link (6).

7. The booster according to claim 1, characterized in that, The first link (3), the first lever (7), and the third link (5) constitute a set of force-increasing transmission units.

8. The booster motor according to claim 1, characterized in that, The second link (4), the second lever (8), and the fourth link (6) constitute another set of force-increasing transmission units.

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