A driving force amplification structure

Abstract

The present invention discloses a driving member force amplification structure, comprising a base, a driving member fixedly mounted on the base, a first transmission member, a lever, a second transmission member and a force output member, wherein the first transmission member is slidably mounted on the base and fixedly connected to the output end of the driving member, the force output member is slidably mounted on the base, the second transmission member is fixed to the force output member, the lever is rotatably mounted on the base, the two ends of the lever are respectively matched with the first transmission member and the second transmission member, the force arm between the rotation center of the lever and the first transmission member is greater than the force arm between the rotation center of the lever and the second transmission member, through the above design, the driving force of the driving member is amplified by the lever and then output through the force output member, thereby meeting the demand for large driving force of the equipment, while having a small size and light weight.

Description

Technical Field

[0001] The invention relates to a driving structure, and in particular to a driving member force amplification structure. Background Art

[0002] With the development of science and technology, mechanization and automation have been widely used in all walks of life in order to improve production efficiency.

[0003] Mechanical devices all have driving parts, which provide power for the mechanical devices. However, the maximum output force of the driving parts is fixed. When the driving force required by the device is greater than the maximum output force of the driving parts, the only way is to replace the driving parts with larger volume and weight. However, driving parts with larger volume and weight are not good for mechanisms that need to move at high speeds, which will cause the equipment to be too large, too heavy or inaccurately controlled. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a driving member force amplification structure that can provide a large output force that meets the requirements and has a small size and light weight.

[0005] One of the purposes of the present invention is achieved by the following technical solution:

[0006] A driving member force amplification structure includes a base, a driving member fixedly mounted on the base, a first transmission member, a lever, a second transmission member and a force output member, wherein the first transmission member is slidably mounted on the base and fixedly connected to the output end of the driving member, the force output member is slidably mounted on the base, the second transmission member is fixed to the force output member, the lever is rotatably mounted on the base, the two ends of the lever are respectively matched with the first transmission member and the second transmission member, and the force arm between the rotation center of the lever and the first transmission member is greater than the force arm between the rotation center of the lever and the second transmission member.

[0007] Furthermore, the driving member force amplification structure also includes two elastic connection components, each of the elastic connection components includes a connecting rod and an elastic member, the connecting rod is fixed to the lever, and two ends of the elastic member are respectively fixed to the connecting rod and the lever.

[0008] Furthermore, the connecting rod is parallel to the lever.

[0009] Furthermore, the elastic member is a spring.

[0010] Further, the first transmission member includes a first transmission block, and the first transmission block is located between the lever and the connecting rod.

[0011] Furthermore, the elastic connection assembly also includes a rotating wheel, which is rotatably mounted on the connecting rod and is in rolling contact with the first transmission block.

[0012] Furthermore, the second transmission member includes a second transmission block, and the second transmission block is located between the lever and the connecting rod.

[0013] Furthermore, the elastic connection assembly also includes a rotating wheel, which is rotatably mounted on the connecting rod and is in rolling contact with the first transmission block.

[0014] Furthermore, the driving member force amplification structure also includes two rollers, which are rotatably mounted on the lever and respectively contact the first transmission member and the second transmission member, so that the lever is in rolling contact with the first transmission member and the second transmission member.

[0015] Furthermore, the driving member force amplification structure also includes two positioning pins, which are respectively fixed to the base and located at the ends of the moving paths of the first transmission member and the force output member to prevent the first transmission member and the force output member from being separated from the base.

[0016] Compared with the prior art, the first transmission member of the force amplification structure of the driving member of the present invention is slidably installed on the base and fixedly connected to the output end of the driving member, the force output member is slidably installed on the base, the second transmission member is fixed to the force output member, and the lever is rotatably installed on the base. The two ends of the lever respectively cooperate with the first transmission member and the second transmission member. The force arm between the rotation center of the lever and the first transmission member is greater than the force arm between the rotation center of the lever and the second transmission member. Through the above design, the driving force of the driving member is amplified by the lever and then output through the force output member, which meets the demand for large driving force of the equipment while being small in size and light in weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the force amplification structure of the driving member of the present invention;

[0018] Figure 2 for Figure 1 A three-dimensional cross-sectional view of a driving member force amplification structure;

[0019] Figure 3 for Figure 2 Another three-dimensional diagram of the driving member force amplification structure;

[0020] Figure 4 for Figure 1 A schematic diagram of a partial structure of a driving member force amplification structure;

[0021] Figure 5 for Figure 4Another three-dimensional diagram of the driving force amplification structure.

[0022] In the figure: 10, base; 11, main body; 12, mounting plate; 13, first slide rail; 14, second slide rail; 20, driving member; 30, first transmission member; 31, first transmission block; 40, lever; 50, second transmission member; 51, second transmission block; 60, force output member; 70, roller; 80, elastic connecting component; 81, connecting rod; 82, elastic member; 83, rotating wheel; 90, positioning pin. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] Figures 1 to 5 The driving member force amplification structure of the present invention includes a base 10, a driving member 20, a first transmission member 30, a lever 40, a second transmission block 51, a force output member 60, a roller 70, an elastic connection component 80 and a positioning pin 90.

[0027] The base 10 includes a main body 11, a mounting plate 12, a first slide rail 13, and a second slide rail 14. The mounting plate 12 extends from the bottom of the main body 11 and is perpendicular to the main body 11. The first slide rail 13 and the second slide rail 14 are arranged on the main body 11. The first slide rail 13 and the second slide rail 14 are parallel to each other. The extension direction of the first slide rail 13 and the second slide rail 14 is perpendicular to the horizontal plane.

[0028] The driving member 20 is a voice coil motor and is fixedly mounted on the mounting plate 12 .

[0029] The first transmission member 30 includes a first transmission block 31. The first transmission member 30 is fixed to the output end of the driving member 20. The first transmission member 30 is slidably mounted on the first slide rail 13.

[0030] The lever 40 is rotatably mounted on the main body 11 of the base 10, and a rotation point is formed between the lever 40 and the main body 11. There are two rollers 70, which are rotatably mounted on both ends of the lever 40. One roller 70 contacts the first transmission block 31, so that the lever 40 and the first transmission member 30 are in rolling contact.

[0031] The force output member 60 is slidably mounted on the second slide rail 14 of the base 10. The second transmission member 50 is fixed to the force output member 60. The second transmission block 51 of the second transmission member 50 contacts the roller 70 mounted on the lever 40, so that the lever 40 and the second transmission member 50 are in rolling contact.

[0032] There are two elastic connection components 80. Each elastic connection component 80 includes a connecting rod 81, an elastic member 82, and a rotating wheel 83. The connecting rod 81 is fixed to the lever 40 and is parallel to the lever 40. The elastic member 82 is a spring. The rotating wheel 83 is rotatably mounted on the connecting rod 81. The two ends of the elastic member 82 are respectively fixed to the lever 40 and the connecting rod 81, so that the rotating wheel 83 and the roller 70 are kept in close contact with the first transmission block 31. At this time, the first transmission block 31 is located between the lever 40 and the connecting rod 81. The second transmission block 51 is located between the lever 40 and the connecting rod 81, and the rotating wheel 83 and the roller 70 are kept in close contact with the second transmission block 51. The arm of force between the first transmission block 31 and the rotation point of the lever 40 is greater than the arm of force between the second transmission block 51 and the rotation point of the lever 40.

[0033] The positioning pin 90 is fixed to the base 10 . There are two positioning pins 90 , which are respectively located at the ends of the moving paths of the first transmission member 30 and the power output member 60 to prevent the first transmission member 30 and the power output member 60 from being separated from the base 10 .

[0034] When the driving member force amplification structure is used, the driving member 20 outputs a driving force to drive the first transmission member 30 to slide relative to the base 10. The first transmission member 30 contacts the lever 40 through the first transmission block 31, so that the lever 40 rotates. The other end of the lever 40 contacts the second transmission block 51, so that the second transmission member 50 drives the force output member 60 to output a driving force.

[0035] Through the above design, the driving force of the driving member 20 is amplified by the lever 40 and then output through the force output member 60, which meets the large driving force requirement of the device while being small in size and light in weight.

[0036] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. A driving member force amplification structure, comprising a base and a driving member fixedly mounted on the base, characterized in that: The driving member force amplification structure also includes a first transmission member, a lever, a second transmission member and a force output member, the first transmission member is slidably mounted on the base and fixedly connected to the output end of the driving member, the force output member is slidably mounted on the base, the second transmission member is fixed to the force output member, the lever is rotatably mounted on the base, the two ends of the lever are respectively matched with the first transmission member and the second transmission member, and the force arm between the rotation center of the lever and the first transmission member is greater than the force arm between the rotation center of the lever and the second transmission member; The driving member force amplification structure further includes two elastic connection components, each of which includes a connecting rod and an elastic member, the connecting rod is fixed to the lever, and two ends of the elastic member are respectively fixed to the connecting rod and the lever; The first transmission member comprises a first transmission block, and the first transmission block is located between the lever and the connecting rod; The elastic connection assembly further comprises a rotating wheel, the rotating wheel is rotatably mounted on the connecting rod, and the rotating wheel is in rolling contact with the first transmission block; The driving member force amplification structure also includes two rollers, which are rotatably mounted on the lever and respectively contact the first transmission member and the second transmission member, so that the lever is in rolling contact with the first transmission member and the second transmission member.

2. The driving member force amplification structure according to claim 1, characterized in that: The connecting rod is parallel to the lever.

3. The driving member force amplification structure according to claim 1, characterized in that: The elastic member is a spring.

4. The driving member force amplification structure according to claim 1, characterized in that: The second transmission member includes a second transmission block, and the second transmission block is located between the lever and the connecting rod.

5. The driving member force amplification structure according to claim 4, characterized in that: The elastic connection assembly further comprises a rotating wheel, which is rotatably mounted on the connecting rod and is in rolling contact with the first transmission block.

6. The driving member force amplification structure according to claim 1, characterized in that: The driving member force amplification structure also includes two positioning pins, which are respectively fixed to the base. The two positioning pins are respectively located at the ends of the moving paths of the first transmission member and the force output member to prevent the first transmission member and the force output member from separating from the base.

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