Electronic tension testing machine for oval rubber pad detection

Abstract

The utility model discloses an electronic tension tester for oval rubber pad detection, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a mounting shell, a transmission assembly is arranged in the mounting shell, the top of the mounting shell is fixedly connected with two support frames, and the tops of the two support frames are jointly and fixedly connected with a top plate. Through the arrangement of the transmission assembly, the bidirectional lead screw, the fluted disc, the rack and the like, the first motor runs and drives the bidirectional lead screw to rotate after being transmitted by the transmission assembly, so that the first moving plate and the second moving plate can drive the two first chucks to move, and an oval rubber pad is longitudinally stretched; a second motor drives a fluted disc to rotate and is in meshing transmission with two racks, so that two second chucks can transversely move to carry out a transverse tensile test on the oval rubber pad, and compared with the prior art, the longitudinal tensile test, the transverse tensile test and the combined tensile test on the oval rubber pad can be met, and the device is more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic tensile testing machines, in particular to an electronic tensile testing machine for detecting elliptical rubber pads. Background Art

[0002] The tensile testing machine is a mechanical force testing machine used to perform static load, stretching, compression, bending, shearing, peeling and other mechanical property tests on materials. It is suitable for various physical and mechanical property tests of plastic plates, pipes, special-shaped materials, plastic films, rubber, wires and cables, etc. It is an indispensable testing equipment for material development, physical property testing, teaching research, quality control, etc. The rubber pad tensile test mainly tests its elasticity, strength, ductility and fracture properties.

[0003] When a tensile test is performed on an elliptical rubber pad, the test data obtained by stretching in only a single direction is not accurate. The elliptical rubber pad needs to be stretched longitudinally, transversely, and longitudinally and transversely simultaneously. However, the tensile testing machine in the prior art can only perform a tensile test in a single direction on strip or belt-shaped items, which cannot meet the test requirements of simultaneous longitudinal and transverse stretching. Utility Model Content

[0004] The technical problem to be solved by the utility model is that when a tensile test is performed on an elliptical rubber pad, the test data obtained by stretching in only a single direction is not accurate. The elliptical rubber pad needs to be stretched longitudinally, transversely, and longitudinally and transversely at the same time. However, the tensile testing machine in the prior art can only perform a tensile test in a single direction on strip or belt-shaped articles, and cannot meet the test requirements of simultaneous longitudinal and transverse stretching.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an electronic tensile testing machine for detecting an elliptical rubber pad, comprising a bottom plate, a mounting shell fixedly connected to the top of the bottom plate, a transmission assembly arranged inside the mounting shell, two support frames fixedly connected to the top of the mounting shell, a top plate fixedly connected to the top of the two support frames, two bidirectional screw rods rotatably connected between the top of the mounting shell and the bottom of the top plate, a first movable plate and a second movable plate threadedly connected to the outside of the two bidirectional screw rods, the outer side walls of the first movable plate and the second movable plate are slidably connected to the inner side walls of the two support frames, and a first chuck for clamping the elliptical rubber pad is fixedly installed on the bottom of the first movable plate and the top of the second movable plate;

[0006] A mounting plate is fixedly connected between one side of the opposite surfaces of the two support frames, two second chucks are arranged on one side of the surface of the mounting plate, two slide grooves are penetrated through one side of the surface of the mounting plate, one side of the surface of the two second chucks are fixedly connected with a slider, one end of the two sliders penetrates the slide groove and extends to the other side of the surface of the mounting plate and is fixedly connected with two limit plates, and the two sliders are respectively slidably connected to the inner side walls of the two slide grooves, two racks are fixedly connected to one side of the opposite surfaces of the two limit plates, and a protective shell is fixedly connected to the other side of the surface of the mounting plate, the two racks are respectively slidably connected to the inner top and inner bottom of the protective shell, a toothed disc is arranged between the two racks, and the toothed discs are respectively meshed with the two racks.

[0007] Preferably, the transmission assembly includes a rotating shaft, both ends of the rotating shaft are rotatably connected to both sides of the inner surface of the mounting shell, the outer sleeve of the rotating shaft is fixedly connected to two first bevel gears, the inner top of the mounting shell is rotatably connected to two second bevel gears, the two first bevel gears are respectively meshed with the two second bevel gears, and the bottom ends of the two bidirectional screw rods extend through the interior of the mounting shell and are respectively fixedly connected to the tops of the two second bevel gears.

[0008] Preferably, a first motor is fixedly mounted on one side of the surface of the mounting shell, an output end of the first motor extends through the interior of the mounting shell and is fixedly connected to one end of the rotating shaft, and the output end of the first motor drives the rotating shaft to rotate.

[0009] Preferably, a second motor is fixedly mounted on one side of the surface of the protective shell, an output end of the second motor extends through the interior of the protective shell and is fixedly connected to one side of the surface of the gear disk, and the second motor drives the gear disk to rotate.

[0010] Preferably, the thread directions of the two bidirectional screw rods are opposite.

[0011] Preferably, the two first chucks and the two second chucks are pneumatic double-jaw clamps.

[0012] Preferably, a plurality of fixing holes are provided around the top of the bottom plate for fixing the bottom plate.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model is provided with components such as a transmission assembly, a bidirectional screw rod, a toothed disc and a rack. The first motor drives the bidirectional screw rod to rotate after being transmitted by the transmission assembly, so that the first movable plate and the second movable plate drive the two first chucks to move, and the elliptical rubber pad is longitudinally stretched. The second motor drives the toothed disc to rotate and mesh with the two racks to drive the two second chucks to move laterally to perform a transverse tensile test on the elliptical rubber pad. Compared with the prior art, the utility model can meet the requirements of longitudinal, transverse and combined tensile tests on the elliptical rubber pad, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a first-view stereoscopic diagram of an electronic tensile testing machine for testing elliptical rubber pads according to the utility model;

[0016] Figure 2 This is a second perspective stereogram of an electronic tensile testing machine for testing elliptical rubber pads according to the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the support frame position of an electronic tensile testing machine for testing elliptical rubber pads of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the protective shell position of an electronic tensile testing machine for testing elliptical rubber pads of the utility model;

[0019] Figure 5 The utility model is a schematic diagram of the internal structure of the installation shell position of an electronic tensile testing machine for detecting elliptical rubber pads.

[0020] In the figure: 1, bottom plate; 101, fixing hole; 2, mounting shell; 3, support frame; 4, top plate; 5, bidirectional screw; 6, first movable plate; 7, second movable plate; 8, first chuck; 9, second chuck; 10, mounting plate; 11, slide groove; 12, slider; 13, limit plate; 14, rack; 15, protective shell; 16, gear disc; 17, rotating shaft; 18, first bevel gear; 19, second bevel gear; 20, first motor; 21, second motor. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0022] See also Figures 1 to 4, an electronic tensile testing machine for detecting an elliptical rubber pad, comprising a bottom plate 1, a mounting shell 2 is fixedly connected to the top of the bottom plate 1, a transmission assembly is arranged inside the mounting shell 2, two support frames 3 are fixedly connected to the top of the mounting shell 2, a top plate 4 is fixedly connected to the top of the two support frames 3, two bidirectional screw rods 5 are rotatably connected between the top of the mounting shell 2 and the bottom of the top plate 4, a first movable plate 6 and a second movable plate 7 are threadedly connected to the outside of the two bidirectional screw rods 5, the outer side walls of the first movable plate 6 and the second movable plate 7 are slidably connected to the inner side walls of the two support frames 3, and a first chuck 8 for clamping the elliptical rubber pad is fixedly installed at the bottom of the first movable plate 6 and the top of the second movable plate 7;

[0023] A mounting plate 10 is fixedly connected between the opposite surfaces of the two support frames 3, two second chucks 9 are arranged on one side of the surface of the mounting plate 10, two slide grooves 11 are penetrated through one side of the surface of the mounting plate 10, and sliders 12 are fixedly connected to one side of the surfaces of the two second chucks 9. One end of the two sliders 12 penetrates the slide groove 11 and extends to the other side of the surface of the mounting plate 10, and two limit plates 13 are fixedly connected, and the two sliders 12 are respectively slidably connected to the inner side walls of the two slide grooves 11, two racks 14 are fixedly connected to the opposite surfaces of the two limit plates 13, and a protective shell 15 is fixedly connected to the other side of the surface of the mounting plate 10, the two racks 14 are respectively slidably connected to the inner top and inner bottom of the protective shell 15, a toothed disc 16 is arranged between the two racks 14, and the toothed disc 16 is respectively meshed with the two racks 14.

[0024] like Figures 1 to 5 As shown, a plurality of fixing holes 101 are provided around the top of the bottom plate 1 for fixing the bottom plate 1. The two first chucks 8 and the two second chucks 9 are both pneumatic double-claw clamps. The thread directions of the two bidirectional screw rods 5 are opposite. A second motor 21 is fixedly mounted on one side of the surface of the protective shell 15. The output end of the second motor 21 extends through the inside of the protective shell 15 and is fixedly connected to one side of the surface of the toothed disc 16. The second motor 21 drives the toothed disc 16 to rotate. The transmission assembly includes a rotating shaft 17. Both ends of the rotating shaft 17 are rotatably connected to both sides of the inner surface of the mounting shell 2. Two first bevel gears 18 are fixedly connected to the outer sleeve, and two second bevel gears 19 are rotatably connected to the inner top of the mounting shell 2. The two first bevel gears 18 are respectively meshed with the two second bevel gears 19. The bottom ends of the two bidirectional screw rods 5 extend through the interior of the mounting shell 2 and are respectively fixedly connected to the tops of the two second bevel gears 19. A first motor 20 is fixedly installed on one side of the surface of the mounting shell 2. The output end of the first motor 20 extends through the interior of the mounting shell 2 and is fixedly connected to one end of the rotating shaft 17. The output end of the first motor 20 drives the rotating shaft 17 to rotate.

[0025] When the utility model is in use, when it is necessary to perform longitudinal stretching on the elliptical rubber pad, the two first chucks 8 are used to clamp and fix the upper and lower ends of the elliptical rubber pad, the first motor 20 runs to drive the rotating shaft 17 to rotate, the rotating shaft 17 drives the two first bevel gears 18 to rotate, the two first bevel gears 18 are respectively meshed with the two second bevel gears 19 for transmission, driving the two second bevel gears 19 to rotate, the two second bevel gears 19 drive the two bidirectional screw rods 5 to rotate, at this time, the first movable plate 6 and the second movable plate 7 which are sleeved and threadedly connected to the outside of the two bidirectional screw rods 5 move in opposite directions with the rotation of the bidirectional screw rods 5, driving the two first chucks 8 to perform a longitudinal stretching test on the elliptical rubber pad, and when it is necessary to perform a transverse stretching test on the elliptical rubber pad, the two second chucks 9 are used to tighten the elliptical rubber pad. The left and right ends of the circular rubber pad are clamped and fixed, and the second motor 21 drives the toothed disc 16 to rotate, and the toothed disc 16 is meshed with the two racks 14 for transmission, and the two racks 14 drive the two limit plates 13 to move in opposite directions, and the limit plates 13 drive the two second chucks 9 to move in opposite directions through the slider 12, and a transverse tensile test is performed on the elliptical rubber pad. When it is necessary to perform transverse and longitudinal tensile tests on the elliptical rubber pad at the same time, the two first chucks 8 are used to clamp and fix the upper and lower ends of the elliptical rubber pad, and then the two second chucks 9 are used to clamp and fix the left and right ends, and then the first motor 20 and the second motor 21 are operated at the same time. Compared with the prior art, the elliptical rubber pad can be subjected to transverse, longitudinal or longitudinal and transverse tensile tests at the same time, which is more practical.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electronic tensile testing machine for testing an elliptical rubber pad, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a mounting shell (2), a transmission assembly is arranged inside the mounting shell (2), the top of the mounting shell (2) is fixedly connected to two support frames (3), the tops of the two support frames (3) are commonly fixedly connected to a top plate (4), two bidirectional screw rods (5) are rotatably connected between the top of the mounting shell (2) and the bottom of the top plate (4), the outsides of the two bidirectional screw rods (5) are commonly sleeved with a first movable plate (6) and a second movable plate (7) through threads, the outer side walls of the first movable plate (6) and the second movable plate (7) are slidably connected to the inner side walls of the two support frames (3), and the bottom of the first movable plate (6) and the top of the second movable plate (7) are both fixedly installed with a first chuck (8) for clamping an elliptical rubber pad; A mounting plate (10) is fixedly connected between the opposite surfaces of the two support frames (3), two second chucks (9) are arranged on one side of the surface of the mounting plate (10), two slide grooves (11) are penetrated through one side of the surface of the mounting plate (10), and a slider (12) is fixedly connected to one side of the surface of the two second chucks (9), one end of the two sliders (12) penetrates the slide groove (11) and extends to the other side of the surface of the mounting plate (10) and is fixedly connected to two limit plates (13), and the two sliders (12) are respectively slidably connected to the inner side walls of the two slide grooves (11), two racks (14) are fixedly connected to the opposite surfaces of the two limit plates (13), and a protective shell (15) is fixedly connected to the other side of the surface of the mounting plate (10), the two racks (14) are respectively slidably connected to the inner top and inner bottom of the protective shell (15), a toothed disc (16) is arranged between the two racks (14), and the toothed disc (16) is respectively meshed with the two racks (14).

2. The electronic tensile testing machine for detecting an elliptical rubber pad according to claim 1, characterized in that: The transmission assembly comprises a rotating shaft (17), the two ends of the rotating shaft (17) are rotatably connected to the two sides of the inner surface of the mounting shell (2), the outer sleeve of the rotating shaft (17) is fixedly connected to two first bevel gears (18), the inner top of the mounting shell (2) is rotatably connected to two second bevel gears (19), the two first bevel gears (18) are respectively meshed and connected with the two second bevel gears (19), and the bottom ends of the two bidirectional screw rods (5) extend through the interior of the mounting shell (2) and are respectively fixedly connected to the tops of the two second bevel gears (19).

3. The electronic tensile testing machine for detecting an elliptical rubber pad according to claim 2, characterized in that: A first motor (20) is fixedly mounted on one side of the surface of the mounting shell (2); an output end of the first motor (20) extends through the interior of the mounting shell (2) and is fixedly connected to one end of the rotating shaft (17).

4. The electronic tensile testing machine for detecting an elliptical rubber pad according to claim 1, characterized in that: A second motor (21) is fixedly mounted on one side of the surface of the protective shell (15); an output end of the second motor (21) extends through the interior of the protective shell (15) and is fixedly connected to one side of the surface of the toothed disc (16).

5. The electronic tensile testing machine for detecting an elliptical rubber pad according to claim 1, characterized in that: The thread directions of the two bidirectional screw rods (5) are opposite.

6. The electronic tensile testing machine for testing an elliptical rubber pad according to claim 1, characterized in that: The two first clamps (8) and the two second clamps (9) are both pneumatic double-claw clamps.

7. The electronic tensile testing machine for testing an elliptical rubber pad according to claim 1, characterized in that: A plurality of fixing holes (101) are provided around the top of the bottom plate (1).

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