Stroke-adjustable reciprocating motion mechanism

Abstract

The stroke-adjustable reciprocating mechanism comprises a driving rod, a rocker arm, a driven rod and a straight rod, the driving rod is controlled to rotate through a driving motor connected to one end, the other end of the driving rod drives the rocker arm to rotate, the rocker arm rotates with the bottom end as the center, one end of the driven rod is pulled by the upper portion of the rocker arm, and the other end of the driven rod is rotationally connected with the straight rod. And the straight rod penetrates through and slides in the fixed seat. The other end of the driving rod slides on the lower portion of the sliding way, and one end of the driven rod slides on the upper portion of the sliding way. A fixed gear motor is arranged at the top of the rocker arm and connected with the lead screw, the driving rod is a connecting rod with a rotating joint, the connecting rod is rotationally connected with the lower portion of the rocker arm, and a rotatable nut is arranged at one end of the driven rod and rotationally connected with the lead screw. The number of the fixing seats is two. The reciprocating mechanism has the advantages that the reciprocating stroke is variable when the reciprocating mechanism operates, the reciprocating stroke can be steplessly adjusted at any time, convenience is improved for the automation field, and the more energy-saving effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of reciprocating motion mechanisms with adjustable stroke, in particular to a reciprocating motion mechanism with adjustable stroke. Background Art

[0002] With the increasing demand in the field of automation, the reciprocating stroke of traditional reciprocating mechanisms is fixed and cannot be adjusted. To adjust the reciprocating stroke, the machine must be shut down. This has defects and there is an urgent need to develop a reciprocating motion mechanism with stepless adjustable stroke. Summary of the Invention

[0003] The purpose of the present invention is to provide a reciprocating motion mechanism with adjustable stroke to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The present invention provides a reciprocating motion mechanism with adjustable stroke, comprising a driving rod, a rocker arm, a driven rod, and a linear rod. The driving rod is controlled to rotate by a driving motor connected to one end, and the other end drives the rocker arm to rotate. The rocker arm rotates with the bottom end as the center. One end of the driven rod is pulled by the upper part of the rocker arm, and the other end is rotationally connected to the linear rod. The linear rod slides in a fixed seat.

[0006] As an improvement, the rocker arm is provided with a slide, the other end of the driving rod slides on the lower part of the slide, and one end of the driven rod slides on the upper part of the slide.

[0007] As an improvement, a fixed reduction motor is provided at the top of the rocker arm, the reduction motor is connected to the screw rod, the driving rod is a connecting rod with a rotating joint, the connecting rod is rotatably connected to the lower part of the rocker arm, and a rotatable nut is provided at one end of the driven rod, and the nut is rotatably connected to the screw rod.

[0008] As an improvement, there are two fixing seats.

[0009] The advantages of the present invention over the prior art are that the reciprocating stroke of the reciprocating mechanism is variable during operation, and the reciprocating stroke can be infinitely adjusted at any time, thereby improving convenience in the automation field and achieving a more energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings listed below are only some structural schematic diagrams of the present invention, not all of them.

[0011] Figure 1 This is a schematic diagram of the structure of a reciprocating motion mechanism with adjustable stroke of the present invention. Figure 1 .

[0012] Figure 2 This is a schematic diagram of the structure of a reciprocating motion mechanism with adjustable stroke of the present invention. Figure 2 .

[0013] Reference numerals:

[0014] Driving rod 1; rocker arm 2; driven rod 3; straight rod 4; fixed seat 5; slide 6; reduction motor 7; screw rod 8; nut 9. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0016] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0017] Furthermore, the use of terms such as "first," "second," and "third" is intended solely to distinguish descriptions and should not be construed as indicating or implying relative importance. The use of terms such as "horizontal," "vertical," and "overhanging" does not necessarily imply that a component must be absolutely horizontal or overhanging; rather, a slight tilt is permitted. For example, "horizontal" simply refers to a direction that is more horizontal than "vertical," not to implying that the structure must be perfectly horizontal; rather, a slight tilt is permitted.

[0018] In the description of the embodiments of the present invention, if the terms "multiple" or "several" appear, they represent at least two.

[0019] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0020] This embodiment combines the attached Figures 1 to 2 , a reciprocating motion mechanism with adjustable stroke is described in detail.

[0021] This embodiment provides a reciprocating motion mechanism with adjustable stroke, including a driving rod 1, a rocker arm 2, a driven rod 3, and a linear rod 4. The driving rod 1 is controlled to rotate by a driving motor connected to one end, and the other end drives the rocker arm 2 to rotate. The rocker arm 2 rotates with the bottom end as the center. One end of the driven rod 3 is pulled by the upper part of the rocker arm 2, and the other end is rotationally connected to the linear rod 4. The linear rod 4 slides in the fixed seat 5.

[0022] The rocker arm 2 is provided with a slideway 6 , the other end of the driving rod 1 slides on the lower part of the slideway 6 , and one end of the driven rod 3 slides on the upper part of the slideway 6 .

[0023] A fixed reduction motor 7 is provided at the top of the rocker arm 2, and the reduction motor 7 is connected to the screw rod 8. The driving rod 1 is a connecting rod with a rotating joint, and the connecting rod is rotatably connected to the lower part of the rocker arm 2. A rotatable nut 9 is provided at one end of the driven rod 3, and the nut 9 is rotatably connected to the screw rod 8.

[0024] There are two fixing seats 5.

[0025] In the specific implementation, there are two implementation structures, namely Figure 1 、 Figure 2 .

[0026] Figure 1 When the structure is implemented, the driving motor drives the driving rod 1 to rotate, the driving rod 1 pulls the rocker arm 2 to rotate, and the rocker arm 2 drives the driven rod 3 to rotate and move back and forth at the same time, realizing the reciprocating motion of the linear rod 4. Since one end of the driven rod 3 slides on the upper part of the slide 6, the reciprocating stroke of the linear rod 4 changes evenly and repeatedly within a certain range.

[0027] Figure 2 During implementation, the drive motor rotates drive rod 1, which in turn rotates rocker arm 2. Rocker arm 2 then rotates driven rod 3 and simultaneously moves back and forth, achieving reciprocating motion for linear rod 4. Because reduction motor 7 controls the rotation of lead screw 8, nut 9 moves on lead screw 8, causing the rotation radius of driven rod 3 to vary. The reciprocating stroke of linear rod 4 varies evenly and repeatedly within a certain range. The reciprocating stroke can be adjusted by activating reduction motor 7 during the reciprocating motion.

[0028] This reciprocating motion mechanism can be used for:

[0029] Medical treatments such as anal dilation or vaginal dilation can relieve patients' pain.

[0030] Solve different problems of adults due to endocrine disorders or physiological problems, etc.

[0031] The problem that the traditional reciprocating mechanism must be stopped before the travel distance of the reciprocating mechanism can be adjusted is solved.

[0032] Robotic arms, machine tools, medical, engines, aerospace, etc.

[0033] The above description of the present invention and its embodiments is non-limiting, and the actual scope of protection is not limited to this description. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed by this invention should be included in the scope of protection of this invention. Therefore, the scope of protection of this invention should be based on the scope of protection of the claims.

Claims

1. A reciprocating motion mechanism with adjustable stroke, characterized in that: The invention comprises a driving rod (1), a rocking arm (2), a driven rod (3), and a linear rod (4). The driving rod (1) is controlled to rotate by a driving motor connected at one end, and the other end drives the rocking arm (2) to rotate. The rocking arm (2) rotates with the bottom end as the center. One end of the driven rod (3) is pulled by the upper part of the rocking arm (2), and the other end is rotationally connected to the linear rod (4). The linear rod (4) is inserted into a fixed seat (5) and slides.

2. A stroke-adjustable reciprocating motion mechanism according to claim 1, characterized in that: The rocker arm (2) is provided with a slideway (6), the other end of the driving rod (1) slides on the lower part of the slideway (6), and one end of the driven rod (3) slides on the upper part of the slideway (6).

3. The stroke-adjustable reciprocating motion mechanism according to claim 1, characterized in that: A fixed reduction motor (7) is provided at the top of the rocker arm (2), and the reduction motor (7) is connected to a screw rod (8). The driving rod (1) is a connecting rod with a rotating joint, and the connecting rod is rotatably connected to the lower part of the rocker arm (2). A rotatable nut (9) is provided at one end of the driven rod (3), and the nut (9) is rotatably connected to the screw rod (8).

4. The stroke-adjustable reciprocating motion mechanism according to claim 1, characterized in that: There are two fixing seats (5).

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