一种担架应力测试装置

Abstract

本实用新型属于担架应力测试装置领域，具体的说是一种担架应力测试装置，包括操作台，所述操作台表面固定连接支架，所述支架侧面设置数显屏，所述支架顶面固定连接电动推杆组，所述电动推杆组底端贯穿支架底面并固定连接压力传感器，所述压力传感器底面固定连接推块组件，所述推块组件包括固定连接于压力传感器底面的槽板，所述槽板底面滑动连接推块，所述槽板和推块顶面开设贯穿的限位孔，所述限位孔内插接限位杆；通过模块化推块组件的可滑动拆装设计，实现不同形状推块的快速更换，直接适配担架的管材曲面、布面接缝等异形部位的针对性施压需求，解决了传统装置加载头单一导致的应力测试盲区问题。

Claims

1. A stretcher stress testing device, characterized by: The system includes an operating table (1), a bracket (2) fixedly connected to the surface of the operating table (1), a digital display screen on the side of the bracket (2), an electric push rod assembly (3) fixedly connected to the top surface of the bracket (2), a pressure sensor (4) fixedly connected to the bottom end of the electric push rod assembly (3) through the bottom surface of the bracket (2), a push block assembly (5) fixedly connected to the bottom surface of the pressure sensor (4), two support plates (6) fixedly connected to the top surface of the operating table (1) in an axisymmetric manner, and two positioning components (7) fixedly connected to the top surface of each support plate (6) in an axisymmetric manner. The push block assembly (5) includes a groove plate (51) fixedly connected to the bottom surface of the pressure sensor (4), a push block (52) slidably connected to the bottom surface of the groove plate (51), and a through limiting hole opened on the top surface of the groove plate (51) and the push block (52), and a limiting rod (53) inserted into the limiting hole. The positioning component (7) includes a base (71) fixedly connected to the top surface of the support plate (6). The side of the base (71) is connected to the top plate (72) via a hinge. A threaded hole is opened at one end of the base (71) and the top plate (72). A screw rod (73) is threadedly connected to the threaded hole. A screw hole is opened on the top surface of the top plate (72). A screw rod (74) is threadedly connected to the screw hole. A bearing (75) is sleeved at the bottom end of the screw rod (74). A pressure plate (76) is fixedly connected to the bottom surface of the bearing (75). A rubber pad (77) is fixedly connected to the bottom surface of the pressure plate (76).

2. The stretcher stress testing device of claim 1, wherein: The push block (52) can be horizontally slidably mounted on the bottom surface of the groove plate (51) along the length direction of the groove plate (51). The push block (52) can slide off the groove plate (51) by releasing the constraint of the limiting rod (53), and can be replaced with push blocks of different shapes or sizes to adapt to the stress detection requirements of different test parts.

3. The stretcher stress testing device of claim 1, wherein: The bottom end of the screw rod (74) above the pressure plate (76) is rotatably connected to the pressure plate (76) by sleeved bearing (75), so that the pressure plate (76) can maintain its vertical pressing action without rotation during the rotation and descent of the screw rod (74).

4. The stretcher stress testing device of claim 1, wherein: The rubber pad (77) fits tightly against and completely covers the entire bottom area of ​​the pressure plate (76) to increase the contact friction coefficient with the part of the stretcher that is clamped and to provide uniform pressure distribution protection.

5. The stretcher stress testing device of claim 1, wherein: The electric push rod assembly (3) can drive the pressure sensor (4) and push block assembly (5) connected to its bottom end to perform vertical extension and retraction within a set stroke, so as to apply a controllable vertical force to a specific part of the stretcher placed on the support plate (6) and positioning assembly (7).

6. The stretcher stress testing device of claim 1, wherein: The digital display screen on the side of the bracket (2) receives and continuously displays the pressure value changes sensed by the pressure sensor (4) during the test in real time through an electrical signal connection.

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