Material piezoelectric experiment device

Abstract

The utility model relates to the technical field of material physical experiments, in particular to a material piezoelectric experiment device which comprises a workbench, a fixing frame is fixedly connected to the upper end of the workbench, a connecting rod is connected to the fixing frame in a sliding mode, and an impact head and a pull block are arranged at the two ends of the connecting rod respectively. According to the piezoelectric material clamping device, the rocking handle is rotated to drive the middle shaft to rotate and drive the second bevel gear to rotate, the first bevel gear is in meshed connection with the second bevel gear to further drive the rotating shaft to rotate, the rotating shaft is rotated to drive the connecting piece to rotate, and therefore the piezoelectric material can be clamped through the clamping component. And through the cooperation of the ratchet wheel and the pawl, the middle shaft is prevented from rotating reversely, the clamping plates are prevented from loosening, the piezoelectric material is prevented from loosening, and the test effect is prevented from being affected, when the ratchet wheel and the pawl are unlocked, the torsion spring drives the rotating shaft to rotate, the clamping plates are rapidly separated, and the piezoelectric material is convenient to take.

Description

Technical Field

[0001] The utility model relates to the technical field of material physics experiments, in particular to a material piezoelectric experiment device. Background Art

[0002] Piezoelectric materials are a special type of material that has piezoelectric effect. The piezoelectric effect refers to the phenomenon that when mechanical stress or electric field is applied, the material will produce uneven charge distribution, thereby generating a voltage difference. Piezoelectric materials are widely used in electronic equipment, sensors, transducers and other fields.

[0003] Piezoelectric materials need to be impacted or squeezed to detect the materials. For example, China Patent Publication No. "CN206524059U" discloses a new type of material physics piezoelectric experimental device, which can clearly assist in demonstrating the characteristics of piezoelectric materials in the classroom. The experiment is simple and easy to operate. Rectangular holes and square grooves are provided on the support plate; the support seat is connected to the base, the support plate is connected to the base, and the support plate is located at the upper end of the base, the balance fixing rod is connected to the connecting seat, and the balance fixing rod is connected to the nut.

[0004] Most existing piezoelectric experimental devices do not have clamping components, and the experimental object cannot be fixed during the experiment. When the experimental object shifts, inaccurate experimental data may result. Utility Model Content

[0005] The utility model aims to solve the problem that the prior art lacks a clamping component and proposes a material piezoelectric experimental device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A material piezoelectric experimental device is designed, comprising a workbench, a fixing frame is fixedly connected to the upper end of the workbench, a connecting rod is slidably connected to the fixing frame, an impact head and a pulling block are respectively arranged at both ends of the connecting rod, a clamping component is arranged at the upper end of the workbench, the clamping component is used to clamp the piezoelectric material, the clamping component is driven by a driving assembly, and a fixing mechanism is arranged at the upper end of the fixing frame;

[0008] A limit block is arranged on the surface of the connecting rod, and two ends of the limit block are fixedly connected with a balance rod, and the balance rod is slidably connected with a fixing frame. A spring is arranged on the surface of the connecting rod, and the spring is located between the limit block and the fixing frame.

[0009] Furthermore, the clamping component includes a placing table, which is fixedly connected to the workbench, and two sliding grooves are provided at the upper end of the placing table. A clamp is slidably connected in the sliding grooves, and a rotating shaft is rotatably connected to the lower end of the placing table. A connecting piece is fixedly connected to the surface of the rotating shaft, and connecting rods are pinned at both ends of the connecting piece, and one end of the connecting rod is pinned to the lower end of the clamp.

[0010] Furthermore, the driving assembly includes a bevel gear 1, which is fixedly connected to one end of the rotating shaft, a central axis is rotatably connected to the placement table, a bevel gear 2 is fixedly connected to the central axis, the bevel gear 1 is meshingly connected with the bevel gear 2, one end of the central axis passes through the placement table, and a crank is provided at the end.

[0011] Furthermore, a ratchet is fixedly connected to the central axis, a pawl is rotatably connected to one side of the placement table, the pawl is engaged with the ratchet, a torsion spring is provided on the surface of the rotating shaft, and both ends of the torsion spring are fixedly connected to the connecting piece and the placement table respectively.

[0012] Furthermore, the fixing mechanism includes a mounting frame, a plug rod is slidably connected inside the mounting frame, a slot is provided on the surface of the connecting rod, one end of the plug rod is inserted into the slot, and a pressure spring is fixedly connected inside the mounting frame.

[0013] Furthermore, a thread is provided on the surface of the connecting rod, a nut is threadedly connected to the thread, and an upper end of the nut is in conflict with the spring.

[0014] The utility model proposes a material piezoelectric experimental device, which has the beneficial effect that: in the utility model, the central axis is rotated by turning the crank, and the bevel gear two is driven to rotate, and the bevel gear one is meshed and connected with the bevel gear two, thereby driving the rotating shaft to rotate, and the connecting member is driven to rotate by rotating the rotating shaft, thereby driving the two clamps to move toward each other, thereby clamping the piezoelectric material, and the cooperation of the ratchet and the pawl can prevent the central axis from reversing, and the clamps from loosening, thereby preventing the piezoelectric material from loosening and affecting the test effect. When the ratchet and the pawl are unlocked, the torsion spring drives the rotating shaft to rotate, so that the clamps are quickly disengaged, and the piezoelectric material is convenient to take. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic cross-sectional view of the clamping assembly of the utility model;

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the fixing mechanism of the utility model.

[0018] In the figure: 1. workbench; 11. fixing frame; 12. connecting rod; 121. limit block; 122. balance rod; 123. spring; 124. thread; 125. nut; 13. impact head; 14. pull block; 2. clamping part; 21. placing table; 22. splint; 23. rotating shaft; 24. connecting piece; 25. connecting rod; 3. driving assembly; 31. bevel gear 1; 32. middle shaft; 33. bevel gear 2; 34. crank handle; 35. ratchet; 36. pawl; 37. torsion spring; 4. fixing mechanism; 41. mounting frame; 42. plug rod; 43. slot; 44. pressure spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3 A material piezoelectric experimental device comprises a workbench 1, the upper end of the workbench 1 is fixedly connected with a fixing frame 11, the fixing frame 11 is slidably connected with a connecting rod 12, the two ends of the connecting rod 12 are respectively provided with an impact head 13 and a pull block 14, the upper end of the workbench 1 is provided with a clamping component 2, the clamping component 2 is used to clamp the piezoelectric material, the clamping component 2 is driven by a driving component 3, and the upper end of the fixing frame 11 is provided with a fixing mechanism 4. In the utility model, the clamping component 2 can be controlled and adjusted by the driving component 3 to ensure accurate adjustment of the clamping force and position of the piezoelectric material, so as to maintain the stability of the experimental object and avoid accidental displacement during the experiment;

[0021] A limit block 121 is provided on the surface of the connecting rod 12, and balance rods 122 are fixedly connected to both ends of the limit block 121. The balance rod 122 is slidably connected to the fixing frame 11. A spring 123 is provided on the surface of the connecting rod 12, and the spring 123 is located between the limit block 121 and the fixing frame 11. In the utility model, the connecting rod 12 is driven to move by pulling the pull block 14, and then the impact head 13 is driven to move. The connecting rod 12 is fixed by the fixing mechanism 4. After the fixing mechanism 4 is unlocked, the elastic force of the spring 123 pushes the connecting rod 12 to move downward. Subsequently, the impact head 13 collides with the piezoelectric material and is measured by an electrical measuring device. This electrical measuring device is a prior art and will not be described in detail here.

[0022] Furthermore, the clamping component 2 includes a placing table 21, which is fixedly connected to the workbench 1. Two sliding grooves are provided at the upper end of the placing table 21, and a clamping plate 22 is slidably connected in the sliding groove. The lower end of the placing table 21 is rotatably connected to a rotating shaft 23, and a connecting member 24 is fixedly connected to the surface of the rotating shaft 23. The two ends of the connecting member 24 are pinned with connecting rods 25, and one end of the connecting rod 25 is pinned to the lower end of the clamping plate 22. In the utility model, the connecting member 24 is driven to rotate by rotating the rotating shaft 23, and then the two clamping plates 22 are driven to move toward each other, thereby clamping the piezoelectric material to prevent the piezoelectric material from accidentally shifting during the experiment.

[0023] Furthermore, the driving assembly 3 includes a bevel gear 1 31, which is fixedly connected to one end of the rotating shaft 23. A central axis 32 is rotatably connected to the placement table 21, and a bevel gear 2 33 is fixedly connected to the central axis 32. The bevel gear 1 31 is meshingly connected with the bevel gear 2 33. One end of the central axis 32 passes through the placement table 21 and is provided with a crank 34 at the end. In the utility model, the central axis 32 is rotated by rotating the crank 34, and the bevel gear 2 33 is rotated, and the rotating shaft 23 is driven to rotate by the meshing connection between the bevel gear 1 31 and the bevel gear 2 33.

[0024] In addition, a ratchet 35 is fixedly connected to the central axis 32, and a pawl 36 is rotatably connected to one side of the placement table 21. The pawl 36 is engaged with the ratchet 35. A torsion spring 37 is provided on the surface of the rotating shaft 23, and the two ends of the torsion spring 37 are respectively fixedly connected to the connecting piece 24 and the placement table 21. In the utility model, the cooperation of the ratchet 35 and the pawl 36 can prevent the central axis 32 from reversing, and the splint 22 from loosening, thereby preventing the piezoelectric material from loosening and affecting the test effect. When the ratchet 35 and the pawl 36 are unlocked, the torsion spring 37 drives the rotating shaft 23 to rotate, so that the splint 22 is quickly disengaged, which is convenient for taking the piezoelectric material.

[0025] Among them, the fixing mechanism 4 includes a mounting frame 41, in which an insertion rod 42 is slidably connected, and a card slot 43 is provided on the surface of the connecting rod 12. One end of the insertion rod 42 is inserted into the card slot 43, and a pressure spring 44 is fixedly connected in the mounting frame 41. In the utility model, the connecting rod 12 is fixed by clamping the insertion rod 42 and the card slot 43. The insertion rod 42 is pulled to separate it from the card slot 43. At this time, the elastic force of the spring 123 pushes the connecting rod 12 to move downward, and then the impact head 13 collides with the piezoelectric material and is measured by the electrical measuring device.

[0026] In addition, a thread 124 is provided on the surface of the connecting rod 12, and a nut 125 is threadedly connected to the thread 124. The upper end of the nut 125 is in conflict with the spring 123. In the utility model, the elastic force of the spring 123 is adjusted by rotating the nut 125, so that the piezoelectric material can present different detection effects under the action of different forces, thereby enhancing the flexibility and accuracy of the test.

[0027] Working method: When working, the piezoelectric material is placed on the placement table 21, and the central shaft 32 is rotated by turning the crank 34, and the bevel gear 2 33 is driven to rotate. The bevel gear 1 31 is meshed and connected with the bevel gear 2 33, thereby driving the rotating shaft 23 to rotate, and the connecting member 24 is driven to rotate by rotating the rotating shaft 23, thereby driving the two clamping plates 22 to move toward each other, thereby clamping the piezoelectric material, and the ratchet 35 and the pawl 36 are used to prevent the central shaft 32 from reversing, and the clamping plate 22 from loosening, thereby preventing the piezoelectric material from loosening and affecting the test effect. Then, by pulling the insertion rod 42, it is separated from the card slot 43. At this time, the elastic force of the spring 123 pushes the connecting rod 12 to move downward. Then, the impact head 13 collides with the piezoelectric material and is measured by the electrical measuring device. By rotating the nut 125 to adjust the elastic force of the spring 123, the piezoelectric material can present different detection effects under the action of different forces, thereby enhancing the flexibility and accuracy of the test. When the ratchet 35 and the pawl 36 are unlocked, the torsion spring 37 drives the rotating shaft 23 to rotate, so that the splint 22 is quickly disengaged, which is convenient for taking the piezoelectric material.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A material piezoelectric experimental device, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is fixedly connected to a fixing frame (11), the fixing frame (11) is slidably connected to a connecting rod (12), both ends of the connecting rod (12) are respectively provided with an impact head (13) and a pulling block (14), the upper end of the workbench (1) is provided with a clamping component (2), the clamping component (2) is used to clamp the piezoelectric material, the clamping component (2) is driven by a driving component (3), and the upper end of the fixing frame (11) is provided with a fixing mechanism (4); A limit block (121) is provided on the surface of the connecting rod (12), two ends of the limit block (121) are fixedly connected to a balance rod (122), the balance rod (122) is slidably connected to a fixing frame (11), and a spring (123) is provided on the surface of the connecting rod (12), and the spring (123) is located between the limit block (121) and the fixing frame (11).

2. A material piezoelectric experimental device according to claim 1, characterized in that: The clamping component (2) includes a placing table (21), the placing table (21) is fixedly connected to the workbench (1), the upper end of the placing table (21) is provided with two sliding grooves, a clamping plate (22) is slidably connected in the sliding grooves, the lower end of the placing table (21) is rotatably connected to a rotating shaft (23), the surface of the rotating shaft (23) is fixedly connected to a connecting member (24), the two ends of the connecting member (24) are pin-connected with connecting rods (25), and one end of the connecting rod (25) is pin-connected to the lower end of the clamping plate (22).

3. A material piezoelectric experimental device according to claim 2, characterized in that: The driving assembly (3) comprises a bevel gear 1 (31), the bevel gear 1 (31) being fixedly connected to one end of a rotating shaft (23), a central shaft (32) being rotatably connected to the placement platform (21), a bevel gear 2 (33) being fixedly connected to the central shaft (32), the bevel gear 1 (31) being meshingly connected to the bevel gear 2 (33), one end of the central shaft (32) passing through the placement platform (21), and a crank handle (34) being arranged at the end.

4. A material piezoelectric experimental device according to claim 3, characterized in that: A ratchet (35) is fixedly connected to the central axis (32), a pawl (36) is rotatably connected to one side of the placement platform (21), the pawl (36) is engaged with the ratchet (35), a torsion spring (37) is provided on the surface of the rotating shaft (23), and two ends of the torsion spring (37) are respectively fixedly connected to the connecting piece (24) and the placement platform (21).

5. A material piezoelectric experimental device according to claim 1, characterized in that: The fixing mechanism (4) comprises a mounting frame (41), an insert rod (42) is slidably connected inside the mounting frame (41), a slot (43) is provided on the surface of the connecting rod (12), one end of the insert rod (42) is inserted into the slot (43), and a pressure spring (44) is fixedly connected inside the mounting frame (41).

6. A material piezoelectric experimental device according to claim 1, characterized in that: The surface of the connecting rod (12) is provided with a thread (124), a nut (125) is threadedly connected to the thread (124), and the upper end of the nut (125) is in conflict with the spring (123).

Images