Excess impact energy reduction device for dynamic tension-torsion shear testing

Abstract

The utility model relates to a mechanical property test technical field especially for a kind of excess impact energy reduction device for dynamic tension torsion shear test, by setting a kind of excess impact energy reduction device for dynamic tension torsion shear test, including fixed base, the top of the fixed base is provided with protection mechanism, the outer wall of the fixed base and below protection mechanism is equipped with mounting groove, the inside of the fixed base and below protection mechanism is fixedly connected with electric push rod, the outer wall of the fixed base is equipped with electronic button, the outer wall of the fixed base and below electronic button left side is fixedly connected with binding post, the fragment produced by impact is blocked using the protection tool in the device, solve the dynamic tension torsion shear test device of existing when testing, test piece is easy to break, the fragment produced by breakage is easy to splash everywhere, leading to the problem of poor safety of test personnel.

Description

Technical Field

[0001] This utility model relates to the field of mechanical performance testing technology, specifically to a device for reducing excess impact energy in dynamic tensile-torsional-shear testing. Background Technology

[0002] The dynamic tension-torsion-shear test device is a device for testing the mechanical properties of bolted joint specimens on aircraft under combined tension, torsion, and shear loads.

[0003] However, the existing dynamic tensile-torsion-shear test still has shortcomings. Specifically, during the test, the test piece is prone to breakage, and the resulting fragments are easily scattered, leading to poor safety for the test personnel. Utility Model Content

[0004] The purpose of this invention is to provide a device for reducing excess impact energy in dynamic tensile-torsional-shear tests, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A device for reducing excess impact energy in dynamic tensile-torsional-shear tests includes a fixed base, a protective mechanism on the top of the fixed base, an installation groove on the outer wall of the fixed base below the protective mechanism, an electric push rod fixedly connected inside the fixed base below the protective mechanism, an electronic button installed on the outer wall of the fixed base, and a terminal block fixedly connected to the left side of the electronic button on the outer wall of the fixed base.

[0006] As a preferred embodiment of this utility model, the protective mechanism includes a protective plate slidably connected inside the fixed base, a connecting sleeve fixedly connected inside the protective plate, a connecting seat slidably connected inside the connecting sleeve, a support plate fixedly connected to the outer wall of the connecting seat on the side away from the throttle plug, a buffer plate fixedly connected to the outer wall of the support plate, a throttle plug fixedly connected to the outer wall of the connecting seat inside the connecting sleeve, a throttle hole formed inside the connecting sleeve near the throttle plug, a reset plate fixedly slidably connected to the inside of the connecting sleeve near the throttle hole, an inner spring fixedly connected to the outer wall of the reset plate away from the throttle hole, and an outer spring fixedly connected to the outer wall of the connecting seat.

[0007] As a preferred embodiment of this utility model, the fixing base is made of stainless steel and has a ring structure design, and multiple sets of electric push rods are provided.

[0008] As a preferred embodiment of this utility model, the inner wall of the fixing base is fixedly connected with a protective rubber pad, the mounting groove is provided with four sets, and the connection method of the terminal block, electric push rod and electronic button is electrical connection.

[0009] Through the above technical solution, the protective rubber pad can protect the fixing base and prevent it from being damaged by fragments.

[0010] As a preferred embodiment of this utility model, the connecting seat and the support plate are both made of stainless steel. The connecting seat has a T-shaped structure design. The connecting seat passes through the connecting sleeve and extends to the outside of the protective plate. The inner spring and the connecting sleeve, as well as the outer spring and the protective plate, are all fixedly connected.

[0011] As a preferred embodiment of this utility model, the throttle plug and the reset plate are both made of ABS plastic, the throttle plug and the throttle orifice are both tapered structures, the support plate is an arc structure, the throttle plug and the connecting sleeve are connected by a sliding connection, and the connecting sleeve stores hydraulic oil.

[0012] Through the above technical solution, the arc-shaped support plate will deform when subjected to external force, thereby absorbing the kinetic energy of the impact. At the same time, after the external force disappears, the support plate will return to its original shape under its own elastic force.

[0013] As a preferred embodiment of this utility model, multiple sets of the connecting sleeve, connecting seat, support plate, buffer plate, throttle plug and reset plate are provided. The protective plate has a ring structure design, and the protective plate extends through and beyond the fixed seat. The buffer plate is made of silicone.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, an excess impact energy reduction device for dynamic tensile-torsional-shear testing is set up. The protective tool within this device blocks the impact-generated fragments. The fixing base is fixed to the outer wall of the dynamic tensile-torsional-shear testing device. The test piece is installed inside the device. An electronic button activates the electric push rod, which pushes the protective plate outwards. The rising protective plate covers the test piece inside the device, activating the dynamic tensile-torsional-shear testing device. The dynamic tensile-torsional-shear test examines the test piece. When the test piece breaks, the resulting fragments scatter in all directions. These fragments impact the buffer plate, which is made of silicone and deforms, absorbing some of the kinetic energy of the fragments. The impact causes the support plate and connecting seat to move inward. The support plate deforms to further absorb the kinetic energy of the fragments. The connecting seat drives the throttle plug to insert into the throttle orifice. The throttle plug entering the throttle orifice pushes the hydraulic oil inward along the orifice. As the throttle plug is no longer inserted into the throttle orifice, the flowable cross-sectional area in the throttle orifice gradually decreases. When the hydraulic oil flows in the throttle orifice with the flowable cross-sectional area gradually decreasing, it will generate a large oil pressure due to the throttling effect. The throttle plug stops moving under the resistance of the hydraulic oil with the gradually increasing oil pressure, thus blocking the splashed fragments. This solves the problem that the test piece is prone to breakage during the test of the existing dynamic tension-torsion-shear test device, and the fragments generated by the breakage are easy to splash around, resulting in poor safety for the test personnel. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This utility model Figure 2 Enlarged view of section B in the middle.

[0016] In the diagram: 1. Fixed base; 2. Protective mechanism; 3. Mounting slot; 4. Electric push rod; 5. Electronic button; 6. Terminal block; 201. Protective plate; 202. Connecting sleeve; 203. Connecting base; 204. Support plate; 205. Buffer plate; 206. Throttling plug; 207. Throttling orifice; 208. Reset plate; 209. Inner spring; 210. Outer spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0019] For examples, please refer to Figure 1-4 This utility model provides a technical solution: An excess impact energy reduction device for dynamic tensile, torsion and shear testing includes a fixed base 1, a protective mechanism 2 on the top of the fixed base 1, an installation groove 3 on the outer wall of the fixed base 1 below the protective mechanism 2, an electric push rod 4 fixedly connected inside the fixed base 1 below the protective mechanism 2, an electronic button 5 installed on the outer wall of the fixed base 1, and a terminal block 6 fixedly connected to the left side of the electronic button 5 on the outer wall of the fixed base 1.

[0020] The fixed base 1 is made of stainless steel and has a ring structure design. Multiple sets of electric push rods 4 are provided.

[0021] The inner wall of the fixed base 1 is fixedly connected with a protective rubber pad, which can protect the fixed base 1 and prevent it from being damaged by fragments. The mounting slot 3 is provided with four sets. The connection method of the terminal block 6, the electric push rod 4 and the electronic button 5 is electrical connection.

[0022] In this embodiment, reference Figure 2 , Figure 3 as well as Figure 4The protective mechanism 2 includes a protective plate 201 slidably connected inside the fixed base 1. A connecting sleeve 202 is fixedly connected inside the protective plate 201. A connecting base 203 is slidably connected inside the connecting sleeve 202. A support plate 204 is fixedly connected to the outer wall of the connecting base 203 on the side away from the throttle plug 206. A buffer plate 205 is fixedly connected to the outer wall of the support plate 204. A throttle plug 206 is fixedly connected to the outer wall of the connecting base 203 inside the connecting sleeve 202. A throttle hole 207 is opened inside the connecting sleeve 202 near the throttle plug 206. A reset plate 208 is slidably connected to the inner wall of the reset plate 208 away from the throttle hole 207. An inner spring 209 is fixedly connected to the outer wall of the reset plate 208 away from the throttle hole 207. An outer spring 210 is fixedly connected to the outer wall of the connecting base 203.

[0023] Both the connecting seat 203 and the support plate 204 are made of stainless steel. The connecting seat 203 has a T-shaped structure design. The connecting seat 203 passes through the connecting sleeve 202 and extends to the outside of the protective plate 201. The inner spring 209 is fixedly connected to the connecting sleeve 202 and the outer spring 210 is fixedly connected to the protective plate 201.

[0024] The throttle plug 206 and the reset plate 208 are both made of ABS plastic. The throttle plug 206 and the throttle orifice 207 are both tapered structures. The support plate 204 is an arc-shaped structure. When the arc-shaped support plate 204 is subjected to external force, it will deform to absorb the kinetic energy of the impact. After the external force disappears, the support plate 204 will return to its original shape under its own elastic force. The throttle plug 206 is connected to the connecting sleeve 202 by sliding connection. The connecting sleeve 202 stores hydraulic oil.

[0025] Multiple sets of connecting sleeve 202, connecting seat 203, support plate 204, buffer plate 205, throttle plug 206 and reset plate 208 are provided. The protective plate 201 has a ring structure design, and the protective plate 201 penetrates and extends to the outside of the fixed seat 1. The buffer plate 205 is made of silicone.

[0026] The working process of this utility model is as follows: When using the excess impact energy reduction device for dynamic tensile-torsional-shear testing designed in this scheme, the fixing base 1 is fixed to the outer wall of the dynamic tensile-torsional-shear testing device using bolts. The test piece is installed inside the dynamic tensile-torsional-shear testing device. Pressing the electronic button 5 activates the electric push rod 4, which pushes the protective plate 201 outwards. The rising protective plate 201 covers the test piece inside the dynamic tensile-torsional-shear testing device, activating the dynamic tensile-torsional-shear testing device. The dynamic tensile-torsional-shear test examines the test piece. When the test piece breaks, the resulting fragments will fly in all directions. These flying fragments will impact the buffer plate 205, which, made of silicone, will deform and absorb some of the kinetic energy of the fragments. The support plate 204 on the outer wall of the buffer plate 205 will also deform simultaneously and further absorb the kinetic energy of the fragments. Under the impact of the fragments, the buffer plate 205 will drive the support plate 204 and the connecting seat 203 to move inward. The connecting seat 203 will drive the throttle plug 206 to insert into the throttle hole 207. The throttle plug 206 entering the throttle hole 207 will push the hydraulic oil to flow inward along the throttle hole 207. As the throttle plug 206 is gradually inserted into the throttle hole 207, the flowable cross-sectional area in the throttle hole 207 gradually decreases. When the hydraulic oil flows in the throttle hole 207 with the flowable cross-sectional area gradually decreasing, it will generate a large oil pressure due to the throttling effect. The throttle plug 206 stops moving under the obstruction of the hydraulic oil with the gradually increasing oil pressure, thereby blocking the splashed fragments.

[0027] The electric push rod 4, electronic button 5, and terminal block 6 used in this utility model are all existing known electrical devices, and can all be purchased and used directly on the market. Their structure, circuit, and control principle are all existing known technologies. Therefore, the structure, circuit, and control principle of the electric push rod 4, electronic button 5, and terminal block 6 will not be described in detail here.

[0028] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for reducing excess impact energy in dynamic tensile-torsional-shear tests, comprising a fixed base (1), characterized in that: The top of the fixed base (1) is provided with a protective mechanism (2), and the outer wall of the fixed base (1) and below the protective mechanism (2) are provided with an installation groove (3). An electric push rod (4) is fixedly connected inside the fixed base (1) and below the protective mechanism (2). An electronic button (5) is installed on the outer wall of the fixed base (1), and a terminal block (6) is fixedly connected on the outer wall of the fixed base (1) and to the left of the electronic button (5).

2. The device for reducing excess impact energy in dynamic tensile-torsional-shear testing according to claim 1, characterized in that: The protective mechanism (2) includes a protective plate (201) slidably connected inside the fixed base (1). A connecting sleeve (202) is fixedly connected inside the protective plate (201). A connecting seat (203) is slidably connected inside the connecting sleeve (202). A support plate (204) is fixedly connected to the outer wall of the connecting seat (203) on the side away from the throttle plug (206). A buffer plate (205) is fixedly connected to the outer wall of the support plate (204). A throttle plug (206) is fixedly connected inside the cylinder (202). A throttle hole (207) is opened inside the connecting sleeve (202) near the throttle plug (206). A reset plate (208) is fixedly and slidably connected inside the connecting sleeve (202) near the throttle hole (207). An inner spring (209) is fixedly connected to the outer wall of the reset plate (208) away from the throttle hole (207). An outer spring (210) is fixedly connected to the outer wall of the connecting seat (203).

3. The device for reducing excess impact energy in dynamic tensile-torsional-shear testing according to claim 1, characterized in that: The fixed base (1) is made of stainless steel and has a ring structure design. The electric push rod (4) is provided in multiple sets.

4. The excess impact energy reduction device for dynamic tensile-torsional-shear testing according to claim 1, characterized in that: The inner wall of the fixed base (1) is fixedly connected with a protective rubber pad, and the mounting groove (3) is provided with four sets. The connection method of the terminal block (6), the electric push rod (4) and the electronic button (5) is electrical connection.

5. The excess impact energy reduction device for dynamic tensile-torsional-shear testing according to claim 2, characterized in that: The connecting seat (203) and the support plate (204) are both made of stainless steel. The connecting seat (203) has a T-shaped structure design. The connecting seat (203) passes through the connecting sleeve (202) and extends to the outside of the protective plate (201). The inner spring (209) is fixedly connected to the connecting sleeve (202) and the outer spring (210) is fixedly connected to the protective plate (201).

6. The excess impact energy reduction device for dynamic tensile-torsional-shear testing according to claim 2, characterized in that: The throttle plug (206) and reset plate (208) are both made of ABS plastic. The throttle plug (206) and throttle orifice (207) are both tapered structures. The support plate (204) is an arc-shaped structure. The throttle plug (206) and the connecting sleeve (202) are connected by a sliding connection. The connecting sleeve (202) stores hydraulic oil.

7. The device for reducing excess impact energy in dynamic tensile-torsional-shear testing according to claim 2, characterized in that: The connecting sleeve (202), connecting seat (203), support plate (204), buffer plate (205), throttle plug (206) and reset plate (208) are all provided in multiple sets. The protective plate (201) is a ring structure design. The protective plate (201) penetrates and extends to the outside of the fixed seat (1). The buffer plate (205) is made of silicone.

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