CN211978650U - Dielectric elastomer cam type tensile power generation test bed - Google Patents

Abstract

The utility model discloses a dielectric elastomer cam-type tensile electricity generation test bench. The mechanical structure of the device comprises a motor, a shaft coupling, a force closed cam, a driving rod, an acrylic tube, an acrylic plate, a guide rail, a dielectric elastomer film, a pulley and the like. The test table is fixed on the supporting bottom plate, and the guide rail is fixed on the test table; the stepping motor is fixed on the supporting base plate through the mounting bracket, the motor shaft is connected with the force-closed cam through the coupler, the force-closed cam mechanism converts the rotary motion of the stepping motor into linear motion through the driving rod, and the sliding block can synchronously drive the acrylic tube to move through the driving rod, so that the dielectric elastomer film is driven to periodically move along the direction of the guide rail to generate electric energy. The test bed can realize local irregular deformation of the dielectric elastomer, improves the controllability of a simulation process, can install different cams according to required deformation rules to meet test requirements, and has the advantages of simple mechanism, convenience in installation, low maintenance cost, high controllability and the like.

Description

Dielectric elastomer cam type tensile power generation test bed

Technical Field

The utility model belongs to the technical field of electromechanics, a tensile electricity generation test bench is related to, in particular to dielectric elastomer cam-type tensile electricity generation test bench.

Background

The dielectric elastomer material is an EAP material based on the maxwell effect formed by impregnating compliant electrode materials (e.g., carbon or graphite, etc.) into the upper and lower surfaces of a matrix of elastomer material (e.g., acrylic, silicone, etc.). The electrical principle is that large capacitance initial charge is injected onto the dielectric elastomer film electrode in an extended state, and the elastic stress of the dielectric elastomer material resists the electric field force during contraction (small capacitance), thereby improving the electric energy.

At present, chinese patent publication No. CN 207992101U discloses a circular table type tensile power generation test device for dielectric elastomers, which includes a motor, a crank, a connecting rod, a slider, an acrylic tube, a guide rail, a dielectric elastomer film, and the like. The test bed is fixed on the supporting base plate, the guide rail is fixedly installed on the test bed, the motor is fixed on the supporting base plate through the motor installation support, and the slider is driven to move by the slider-crank mechanism. The working length of the crank can be adjusted by a bolt through the T-shaped groove. The dielectric elastomer film is adjustable in initial position by a bearing mount. The rotary motion of the motor can be converted into reciprocating linear motion of the acrylic tube driving the central part of the dielectric elastomer film through the device, so that the dielectric elastomer film is stretched in a circular truncated cone mode, and the size and the capacitance value of the dielectric elastomer film are changed to generate power. The device can realize the even big deformation of dielectric elastomer, has improved the reliability of work efficiency and test, and dielectric elastomer is not fragile, has simple structure, simple to operate, maintenance cost low grade advantage.

However, this solution has the following drawbacks: the dielectric elastomer circular table type stretching power generation experimental device is single in motion mode, mostly moves in a regular reciprocating mode, and lacks certain simulation capability for complex natural environments.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tensile electricity generation test bench of dielectric elastomer cam-type can simulate the tensile of dielectric elastomer membrane in natural environment through this test bench, increases experimental credibility.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a mechanical structure of a dielectric elastomer cam type tension power generation test bed comprises a motor, a coupler, a force-closed cam, a driving rod, a sliding block 1, a fastening screw M2, an acrylic tube, an acrylic plate, a support 2, a support 1, a guide rail, a test table, a supporting base plate, a bolt M8, a dielectric elastomer film, a sliding block 2, a bolt M6, a motor mounting support and a pulley; the test table is fixed on the supporting bottom plate, and the guide rail is fixed on the test table; the motor is fixed on the supporting bottom plate through a motor mounting bracket, and a motor shaft is connected with the force-closed cam through a coupler; the pulley is arranged at the tail end of the driving rod and placed in a track on the inner side of the force-closed cam, the two sliding blocks 1 are fixed on the driving rod through bolts M8, the bracket 1 is fixedly arranged on the sliding blocks 1, and the acrylic tube is fixed on the bracket 1 through a fastening screw M2; the sliding block 2 is fixed on the guide rail through a bolt M6, the bracket 2 is fixedly arranged on two sides of the sliding block 2 and used for supporting an acrylic tube, the acrylic plate is fixedly arranged on the sliding block 2, and a dielectric elastomer film is clamped in the acrylic plate; the sliding blocks 1 and 2 are both arranged on the guide rail, and the sliding block 2 is positioned between the two sliding blocks 1. The rotary motion of the motor can be converted into the axial motion of the acrylic tube driving the designated part of the dielectric elastomer film through the test bed, so that the deformation of the dielectric elastomer film is realized, and electric energy is generated.

The dielectric elastomer cam type tensile power generation test bed is characterized in that the two sliding blocks 1 can synchronously drive the acrylic tube to perform periodic motion along the direction of the guide rail through the driving rods, and the acrylic tube is arranged in the positive direction and the negative direction, so that the film can deform in two directions, and the dielectric elastomer film can perform flexible periodic motion to research the power generation condition of the film under more situations.

The dielectric elastomer cam type tensile power generation test bed is characterized in that a force-closed cam mechanism is adopted, the rotary motion of a motor is converted into linear motion through a driving rod, and the motion trail can be adjusted by replacing a cam model.

The dielectric elastomer cam type tension power generation test bed is characterized in that the position of a sliding block 1 fixed on a driving rod can be adjusted on the driving rod through a bolt M7 to adapt to the positions of the sliding block under different movements, and meanwhile, a bracket 1 fixed on the sliding block 1 can adjust the initial position of an acrylic tube through a fastening screw M2 to achieve adjustment of a movement track.

The utility model has the advantages that: the test bed can realize local irregular deformation of the dielectric elastomer, improves the controllability of a simulation process, can install different cams according to required deformation rules to meet test requirements, and has the advantages of simple mechanism, convenience in installation, low maintenance cost, high controllability and the like.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a left side view of the present invention;

the present invention will be described in further detail with reference to the accompanying drawings.

Detailed Description

Referring to fig. 1-4, the utility model discloses dielectric elastomer cam-type tensile electricity generation test bench, including motor (1), shaft coupling (2), power enclosed type cam (3), actuating lever (4), slider 1(5), fastening screw M2(6), ya keli pipe (7), ya keli board (8), support 2(9), support 1(10), guide rail (11), test table (12), supporting baseplate (13), bolt M8(14), dielectric elastomer membrane (15), slider 2(16), bolt M6(17), motor installing support (18), pulley (19).

The test table (12) is fixed on the supporting bottom plate (13), and the guide rail (11) is fixed on the test table (12); the motor (1) is fixed on the supporting base plate (13) through a motor mounting bracket (18), and a motor shaft is connected with the force-closed cam (3) through a coupler (2); the pulley (19) is arranged at the tail end of the driving rod (4) and is placed in a track on the inner side of the force closed cam (3), two sliding blocks (1) (5) are fixed on the driving rod (4) through bolts M8(14), a bracket (1) (10) is fixedly arranged on the sliding blocks (1) (5), and the acrylic tube (7) is fixed on the bracket (1) (10) through a fastening screw M2 (6); the sliding block 2(16) is fixed on the guide rail (11) through a bolt M6(17), the bracket 2(9) is fixedly arranged at two sides of the sliding block 2(16) and used for supporting the acrylic tube (7), the acrylic plate (8) is fixedly arranged on the sliding block 2(16), and the dielectric elastomer film (15) is clamped in the acrylic plate (8); the sliding blocks 1(5) and 2(16) are both arranged on the guide rail (11), and the sliding blocks 2(16) are positioned between the two sliding blocks 1 (5). The driving rod (4) makes linear motion on the guide rail (11) through the force closed cam (3) to drive the two sliders (1), (5) fixed on the driving rod (4) to make periodic linear motion, so that the acrylic tubes (7) fixed on the brackets (1), (10) of the sliders (1), (5) also move together, thereby deforming the dielectric elastomer film (15) and generating electric energy.

When the device works, firstly, the dielectric elastomer cam type tensile power generation test bed is fixed on a horizontal table top, a power supply is switched on, a switch is switched on, a motor (1) rotates, a force closed type cam (3) performs rotary motion through a coupler (2), the force closed type cam (3) enables a driving rod (4) to generate periodic linear motion along the direction of a guide rail (11), two sliders 1(5) fixed on the driving rod (4) are driven to perform periodic linear motion, and a sub-gram force tube (7) fixed on a support 1(10) of the sliders 1(5) moves together, so that a dielectric elastomer film (15) is deformed, and the size and the capacitance of the dielectric elastomer film (15) are changed.

Claims (3)

1. A dielectric elastomer cam type tension power generation test bed is characterized by comprising a motor (1), a coupler (2), a force closed type cam (3), a driving rod (4), a first sliding block (5), a fastening screw M2(6), an acrylic tube (7), an acrylic plate (8), a second support (9), a first support (10), a guide rail (11), a test table (12), a supporting base plate (13), a bolt M8(14), a dielectric elastomer film (15), a second sliding block (16), a bolt M6(17), a motor mounting support (18) and a pulley (19); the test table (12) is fixed on the supporting bottom plate (13), and the guide rail (11) is fixed on the test table (12); the motor (1) is fixed on the supporting base plate (13) through a motor mounting bracket (18), and a motor shaft is connected with the force-closed cam (3) through a coupler (2); the pulley (19) is installed at the tail end of the driving rod (4) and placed in a track on the inner side of the force closed cam (3), the two first sliding blocks (5) are fixed on the driving rod (4) through bolts M8(14), the first support (10) is installed and fixed on the first sliding blocks (5), and the acrylic tube (7) is fixed on the first support (10) through fastening screws M2 (6); a second sliding block (16) is fixed on the guide rail (11) through a bolt M6(17), a second bracket (9) is fixedly installed on two sides of the second sliding block (16) and used for supporting the acrylic tube (7), an acrylic plate (8) is fixedly installed on the second sliding block (16), and a dielectric elastomer film (15) is clamped in the acrylic plate (8); the first sliding block (5) and the second sliding block (16) are both arranged on the guide rail (11), and the second sliding block (16) is positioned between the first sliding blocks (5); the cam (3) adopts a force closed mechanism, and the cam (3) is replaceable.

2. The dielectric elastomer cam type tension power generation test bed as claimed in claim 1, wherein the two first sliding blocks (5) can synchronously drive the acrylic tubes (7) at two ends of the dielectric elastomer film (15) to perform periodic motion along the direction of the guide rail (11) through the driving rod (4).

3. The cam type tension power generation test bed for the dielectric elastomer according to claim 1, wherein the first sliding block (5) fixed on the driving rod (4) can be adjusted in position on the driving rod (4) through a bolt M8(14) to adapt to the position of the sliding block under different movements, and the first bracket (10) fixed on the first sliding block (5) can be adjusted in initial position of the acrylic tube (7) through a fastening screw M2(6) to realize adjustment of the movement track.

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