Modularized collision impact test device and installation test method

Abstract

The invention relates to a modularized collision impact test device and an installation test method.The modularized collision impact test device comprises a supporting structure, a hammerhead connecting and supporting mechanism, a tool fixing mechanism and a hammerhead driving mechanism, the supporting structure comprises a top frame mechanism, and multiple sets of supporting holes are formed in the top frame mechanism; the hammerhead connecting and supporting mechanism comprises a first rotating rod rotationally connected to the first group of supporting holes and a hammerhead fixed to the first rotating rod, the tool fixing mechanism comprises a plate frame beam system, the plate frame beam system is rotationally connected to the second group of supporting holes through a second connecting piece, and a plurality of strain measuring pieces are attached to the plate frame beam system; the hammerhead driving mechanism comprises a rotating driving piece, and the rotating driving piece is powered on to drive the first rotating rod to rotate so as to drive the hammerhead to rotate upwards in the first direction and then rotate downwards in the second direction to impact the plate frame beam system. According to the invention, plate frame beam systems or hammerheads of different specifications can be subjected to collision impact tests of different heights and different distances, the accuracy is high, and the practicability is strong.

Description

Technical Field

[0001] The invention belongs to the technical field of ship engineering, and in particular relates to a modular collision impact test device and an installation test method. Background Art

[0002] Water transportation has become the main mode of transportation for international trade due to its advantages such as large volume and low cost. At present, water transportation has been vigorously developed. However, the complex and changeable marine environment affects the safety of water transportation and even leads to water traffic accidents. Studies have shown that among many marine traffic accidents, the incidence of ship collision accidents is the highest. As a type of marine traffic accident, ship collision has always been the focus of attention in the shipping industry. These accidents will not only cause damage to the hull structure, cargo leakage and casualties, but may also cause serious pollution to the marine environment. Therefore, it is extremely important to improve the anti-collision performance of ships and prevent the occurrence of collision accidents.

[0003] From a historical perspective, the issue of ship collision has always attracted much attention. Research on ship collision performance mainly focuses on three aspects: testing, analysis and numerical simulation. Among them, testing is the most realistic and reliable research method, while analytical calculation and numerical simulation need to be carried out based on experimental phenomena or need to be verified and improved by experiments. Due to the limitations of test conditions, there are not many tests on ship frame at present, especially the test fixtures used for collision impact problems can only be used for impact tests of a single specification of frame beam system. Replacing an impact hammer head or a different constraint fixture must specially design and process a new set of test fixtures, which increases the test cost. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a modular collision impact test device and an installation test method, which can realize the testing of collision impact problems at different heights and distances for plate frame beam systems or hammer heads of different specifications, with high accuracy and strong practicality.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A modular collision impact test device, comprising:

[0007] The supporting structure includes a top frame mechanism, and a plurality of groups of supporting holes are arranged on the top frame mechanism;

[0008] A hammer head connection support mechanism comprises a first rotating rod and a hammer head, wherein the first rotating rod is rotatably connected to the first group of support holes, and the hammer head is fixed to the first rotating rod through a first connecting member;

[0009] The tool fixing mechanism comprises a plate frame beam system, wherein the plate frame beam system is rotatably connected to the second group of support holes through a second connecting member, a plurality of strain measuring members are attached to the plate frame beam system, and a distance between the first group of support holes and the second group of support holes is determined according to a collision impact distance;

[0010] The hammer driving mechanism includes a rotating driving member, which is powered to drive the first rotating rod to rotate so as to drive the hammer to rotate upward in a first direction and then rotate downward in a second direction to hit the plate frame beam system. The first direction is clockwise or counterclockwise, and the second direction is opposite to the first direction.

[0011] Furthermore, it also includes a reduction mechanism, which includes a first gear and a second gear, the first gear is fixed to the output shaft of the rotating drive member, the second gear is fixed to the first rotating rod, and the second gear is directly or indirectly meshed with the first gear.

[0012] Furthermore, when the second gear is indirectly meshed with the first gear, a first anti-rebound mechanism is further included, the first anti-rebound mechanism includes a magnetic adsorption component, a third gear and a fourth gear, the magnetic adsorption component is fixed to the top frame mechanism, the third gear is movably connected to the top frame mechanism, the fourth gear is fixedly connected to the third gear, and the magnetic adsorption component makes the third gear be in the first position or the second position by adsorbing or releasing the third gear;

[0013] When the third gear is in the first position, the third gear is meshed with the first gear, and the fourth gear is meshed with the second gear;

[0014] When the third gear is in the second position, the third gear is disengaged from the first gear, and the fourth gear is disengaged from the second gear.

[0015] Furthermore, a first elastic member is provided on the top frame mechanism, and the first elastic member has a tendency to drive the third gear away from the magnetic adsorption member.

[0016] Furthermore, it also includes a second anti-rebound mechanism, which includes a second rotating rod, a fastener and a ratchet, the second rotating rod is rotatably connected to the third group of support holes, the ratchet is fixed on the second rotating rod, the ratchet can rotate in the second direction but cannot rotate in the first direction, the fastener is set on the second rotating rod, and the fastener can fix or release the first connecting member to the second rotating rod by clamping or not clamping the first connecting member.

[0017] Furthermore, the second anti-rebound mechanism also includes a second elastic member, one end of the second elastic member is fixed to the ratchet, and the other end is fixed to the buckle.

[0018] Further, the first connecting member includes a plurality of first link mechanisms arranged at a certain distance apart, the first link mechanism includes a first link, a second link, a third link and a fourth link, one end of the first link is fixed to the first rotating rod, the other end of one end of the first link is rotatably connected to one end of the second link, the other end of the second link is rotatably connected to one end of the third link, the other end of the third link is rotatably connected to one end of the fourth link, one end of the fourth link is fixed or not fixed to the second rotating rod by adsorption or release of a fastener, and both ends of the second link are fixed to the hammer head.

[0019] Furthermore, the hammer head includes an impact part and a counterweight, the impact part is fixed on the counterweight, and the weight of the counterweight is adjusted by adding or removing weights in the counterweight.

[0020] Furthermore, it also includes a safety mechanism, which includes a hammer head seat, a winch, a wire rope and two pulleys; the hammer head seat and the winch are installed on the side of the top frame by screws, and a pulley is installed at each end above the top frame. One end of the wire rope is fixed to the first connecting piece, and the other end is fixed to the second connecting piece. The middle part passes through a pulley, the hammer head seat, the winch and another pulley.

[0021] A modular collision impact installation test method comprises the following steps:

[0022] Fix the support structure on the base plane so that the top frame mechanism is above the base plane;

[0023] The first rotating rod is rotatably connected to the first group of supporting holes of the top frame mechanism, the hammer head is fixed to the first rotating rod through the first connecting member, the rotating driving member is fixed to the top frame mechanism and the output shaft of the rotating driving member is fixed to the first rotating rod;

[0024] Rotatingly connecting the plate frame beam system to the second group of support holes through a second connecting member, and attaching a plurality of strain measuring members to the plate frame beam system;

[0025] The rotary drive member is powered on to drive the first rotary rod to rotate so as to drive the hammer head to rotate upwards along a first direction and then rotate downwards along a second direction to strike the plate frame beam system.

[0026] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0027] (1) The present invention drives the first rotating rod to rotate by a rotating driving member to drive the hammer head to rotate upward in a first direction and then rotate downward in a second direction to hit the plate frame beam system, thereby obtaining the compression condition of the plate frame beam system and the strain of multiple strain measuring members to obtain the impact condition of the hammer head, thereby realizing the test of the collision impact problem. In addition, during the experiment, the plate frame beam system can be replaced to realize the collision impact test of plate frame beam systems of different specifications, with high accuracy and strong practicality. In addition, the distance between the first group of support holes and the second group of support holes is determined according to the collision impact distance.

[0028] (2) The present invention can prevent the hammer head from rebounding by providing the first anti-rebound mechanism and the second anti-rebound mechanism, thereby ensuring that the plate frame beam system is impacted only once in one test, thereby further enhancing the accuracy of the test results.

[0029] (3) The present invention protects the plate frame beam system and the hammer head through a safety mechanism to prevent the plate frame beam system and the hammer head from falling.

[0030] (5) The present invention uses the first link mechanism and the second link structure to keep the plate frame beam system and the hammer head horizontal without tilting, so that the test results are more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the support structure, the insurance mechanism and the control mechanism of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the connection between the hammer head connection support mechanism and the top frame mechanism of the present invention;

[0035] Figure 4 It is a structural schematic diagram of a hammer head connection support mechanism of the present invention at one angle;

[0036] Figure 5 It is a structural schematic diagram of the hammer head connection support mechanism of the present invention from another angle;

[0037] Figure 6 It is a structural schematic diagram of the tool fixing mechanism of the present invention.

[0038] Among them, 100, supporting structure; 110, top frame mechanism; 111, channel steel; 1111, supporting hole; 120, main frame structure; 121, supporting column; 122, crossbeam; 123, protective plate; 124, toggle plate; 130, fixed base;

[0039] 200, hammer head connection support mechanism; 210, first rotating rod; 220, hammer head; 221, impact part; 222, counterweight; 230, second rotating rod; 240, first connecting rod mechanism; 241, first connecting rod; 242, second connecting rod; 243, third connecting rod;

[0040] 300, tool fixing mechanism; 310, plate frame beam system; 311, strain measuring device; 320, constraint tool bracket; 330, second connecting rod mechanism; 331, fourth connecting rod; 332, fourth connecting rod; 340, third rotating rod; 350, fourth rotating rod;

[0041] 400, hammer driving mechanism; 410, rotating driving member; 420, first gear; 430, second gear;

[0042] 500, first anti-rebound mechanism; 510, third gear; 520, fourth gear; 530, magnetic adsorption member;

[0043] 600, second anti-rebound mechanism; 610, fastener; 620, ratchet; 630, torque spring;

[0044] 700, insurance mechanism; 710, winch; 720, wire rope; 730, pulley;

[0045] 800, control mechanism; 810, power switch; 820, control console. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0048] Example 1

[0049] Embodiment 1 provides a modular collision impact test device, such as Figure 1-Figure 6 As shown, including:

[0050] The support structure 100 includes a top frame mechanism 110 , and a plurality of groups of support holes 1111 are arranged on the top frame mechanism 110 ;

[0051] The hammer 220 is connected to the support mechanism 200, and includes a first rotating rod 210 and the hammer 220. The first rotating rod 210 is rotatably connected to the first group of support holes 1111, and the hammer 220 is fixed to the first rotating rod 210 through a first connecting member.

[0052] The tooling fixing mechanism 300 includes a plate frame beam system 310, the plate frame beam system 310 is rotatably connected to the second group of support holes 1111 through a second connecting member, a plurality of strain measuring members 311 are attached to the plate frame beam system 310, and the distance between the first group of support holes 1111 and the second group of support holes 1111 is determined according to the collision impact distance;

[0053] The hammer driving mechanism 400 includes a rotating driving member 410. The rotating driving member 410 is powered to drive the first rotating rod 210 to rotate so as to drive the hammer 220 to rotate upward in a first direction and then rotate downward in a second direction to impact the plate frame beam system 310. The first direction is clockwise or counterclockwise, and the second direction is opposite to the first direction.

[0054] The modular collision impact test device provided in this embodiment, during use, drives the first rotating rod 210 to rotate by rotating the driving member 410 to drive the hammer head 220 to rotate upward in the first direction and then rotate downward in the second direction to hit the plate frame beam system 310, obtains the compression condition of the plate frame beam system 310 and the strain amount of multiple strain measuring members 311 to obtain the impact condition of the hammer head 220, and realizes the test of collision impact problem. And during the experiment, the plate frame beam system 310 can be replaced to realize the collision impact test of plate frame beam systems 310 of different specifications, with high accuracy and strong practicality. In addition, the distance between the first group of support holes 1111 and the second group of support holes 1111 is determined according to the collision impact distance.

[0055] like Figure 1 and Figure 2 As shown, a modular collision impact test device provided in this embodiment, the support structure 100 also includes a main frame structure 120 and a fixed base 130, the fixed base 130 is rectangular and fixed on the base plane, and the four corners of the fixed base 130 are buckled with vertical locking pins and fixed to the base plane. The main frame structure 120 includes support columns 121, beams 122 and protective plates 123, four support columns 121 are arranged in a rectangular shape and are all fixed on the fixed base 130, and multiple toggle plates 124 are also provided between the support columns and the fixed base 130, and two adjacent support columns 121 are fixedly connected by the beams 122, so that the main frame structure 120 includes multiple I-beam structures, which enhances the bearing capacity, and provides good support for the hammer head 220 to connect the support mechanism 200 and the tooling fixing mechanism 300, which is convenient for collision impact testing.

[0056] In this embodiment, the top frame mechanism 110 is fixed to the lower part of two oppositely arranged cross beams 122, and the top frame mechanism 110 includes one or more channel steels 111, the extension direction of the channel steels 111 is consistent with the extension direction of the other two oppositely arranged cross beams 122, and the plurality of groups of support holes 1111 are arranged along the extension direction of the channel steels 111. When multiple channel steels 111 are provided, adjacent channel steels 111 are fixedly connected.

[0057] In this embodiment, the plurality of channel steels 111 are integrally formed, bolted or welded, which is not limited in this embodiment.

[0058] In this embodiment, Figure 3 and Figure 4 As shown, since the speed of the rotating driving member 410 is relatively high, in order to prevent the hammer head 220 from falling too fast, it is also necessary to adjust the falling speed of the hammer head 220. This embodiment also includes a reduction mechanism, and the reduction mechanism includes a first gear 420 and a second gear 430. The first gear 420 is fixed to the output shaft of the rotating driving member 410, and the second gear 430 is fixed to the first rotating rod 210. The second gear 430 is directly or indirectly meshed with the first gear 420.

[0059] In this embodiment, Figure 3-Figure 5 As shown, if the hammer head 220 rebounds and hits the plate frame beam system 310 multiple times, it will affect the test results. Therefore, when the second gear 430 is indirectly meshed with the first gear 420, it also includes a first anti-rebound mechanism 500. The first anti-rebound mechanism 500 includes a magnetic adsorption component 530, a third gear 510 and a fourth gear. The magnetic adsorption component 530 is fixed to the top frame mechanism 110, the third gear 510 is movably connected to the top frame mechanism 110, and the fourth gear is fixedly connected to the third gear 510. The magnetic adsorption component 530 adsorbs or releases the third gear 510 to place the third gear 510 in the first position or the second position.

[0060] In this embodiment, when the third gear 510 is in the first position, the third gear 510 is meshed with the first gear 420, the fourth gear is meshed with the second gear 430, the rotating driving member 410 drives the first gear 420 to rotate, the first gear 420 is meshed with the third gear 510 to drive the third gear 510 to move, the third gear 510 is fixedly connected to the fourth gear to drive the fourth gear to move, the fourth gear is meshed with the second gear 430 to drive the second gear 430 to move, thereby driving the first rotating rod 210 to rotate to drive the hammer head 220 to rotate upward in the first direction until it reaches a certain position, the rotating driving member 410 is powered off, and the hammer head 220 is rotated downward in the second direction under the action of gravity to hit the plate frame beam system 310.

[0061] When the third gear 510 is in the second position, the third gear 510 is disengaged from the first gear 420 , and the fourth gear is disengaged from the second gear 430 . At this time, the hammer head 220 is difficult to rebound and hit the plate frame beam system 310 again.

[0062] In this embodiment, the third gear 510 and the fourth gear are fixed on the moving shaft, and the moving shaft is movably connected to the top frame mechanism 110 .

[0063] In this embodiment, the magnetic adsorption component 530 is a solenoid valve. The magnetic adsorption component 530 adsorbs or releases the third gear 510 by powering on or off so that the third gear 510 is in the first position or the second position.

[0064] In this embodiment, a first elastic member is disposed on the top frame mechanism 110, and the first elastic member has a tendency to drive the third gear 510 away from the magnetic adsorption member 530. The first elastic member is a torque spring 630, one end of which is fixed to the top frame mechanism 110, and the other end is fixed to the third gear 510.

[0065] In this embodiment, Figure 3-Figure 5As shown, in order to further prevent the hammer head 220 from rebounding and then hitting the plate frame beam system 310, it also includes a second anti-rebound mechanism 600, the second anti-rebound mechanism 600 includes a second rotating rod 230, a fastener 610 and a ratchet 620, the second rotating rod 230 is rotatably connected to the third group of support holes 1111, the ratchet 620 is fixed on the second rotating rod 230, the ratchet 620 can rotate in the second direction but cannot rotate in the first direction, the fastener 610 is set on the second rotating rod 230, the fastener 610 can fix or not fix the first connecting member to the second rotating rod 230 by clamping or not clamping the first connecting member.

[0066] During use, when the hammer head 220 is acted upon by gravity and rotates downward in the second direction to hit the plate frame beam system 310, the fastener 610 clamps the first connecting member to fix the first connecting member and the second rotating rod 230, and the second rotating rod 230 also rotates in the second direction. Due to the special performance of the ratchet 620, the ratchet 620 can rotate in the second direction but cannot rotate in the first direction. Therefore, the second rotating rod 230 cannot rotate in the first direction, and the first connecting member cannot rebound in the first direction and then rotate downward in the second direction to hit the plate frame beam system 310.

[0067] In this embodiment, the fastener 610 can be a solenoid valve. When it is necessary to prevent the hammer head 220 from rebounding, the fastener 610 is energized to clamp the first connecting member so that the first connecting member and the second rotating rod 230 are fixed; when it is necessary to test again, the fastener 610 is powered off to release the first connecting member so that the first connecting member and the second rotating rod 230 are not fixed.

[0068] In this embodiment, the fastener 610 can be a buckle. When it is necessary to prevent the hammer head 220 from rebounding, the fastener 610 clamps the first connecting member to adsorb the first connecting member so that the first connecting member and the second rotating rod 230 are fixed; when it is necessary to test again, the rotating driving member 410 drives the first connecting member to rotate to disengage from the second rotating rod 230 so that the first connecting member and the second rotating rod 230 are not fixed.

[0069] In this embodiment, the fastener 610 can also be a permanent magnet. When it is necessary to prevent the hammer head 220 from rebounding, the permanent magnet adsorbs the first connecting member to fix the first connecting member and the second rotating rod 230; when it is necessary to test again, the rotating driving member 410 drives the first connecting member to rotate to disengage from the second rotating rod 230 so that the first connecting member and the second rotating rod 230 are not fixed.

[0070] In this embodiment, the second anti-rebound mechanism 600 also includes a second elastic member, which is a torque spring 630. The second elastic member is sleeved on the second rotating rod 230. One end of the second elastic member is fixed to the ratchet 620, and the other end is fixed to the fastener 610 to prevent the hammer head 220 from rebounding through torsional force.

[0071] In order to ensure the effect of preventing the hammer head 220 from rebounding, one or more second anti-rebound mechanisms 600 are provided in this embodiment.

[0072] In this embodiment, in order to prevent the hammer head 220 from tilting to affect the test results, it is necessary to ensure that the hammer head 220 is always horizontal, and the first connecting member includes a plurality of first link mechanisms 240 arranged at a certain distance, and the first link mechanism 240 includes a first link 241, a second link 242 and a third link 243, one end of the first link 241 is fixed to the first rotating rod 210, the other end of one end of the first link 241 is rotatably connected to one end of the second link 242, the other end of the second link 242 is rotatably connected to one end of the third link 243, and the other end of the third link 243 is clamped or unclamped by the fastener 610 to fix or unfix the first connecting member with the second rotating rod 230, and the two ends of the second link 242 are fixedly connected to the hammer head 220. In the specific implementation of this embodiment, there are two first link mechanisms 240.

[0073] In this embodiment, since the hammer head 220 is heavy, in order to ensure safety and stability, a plurality of first reinforcing connecting rods are further provided on the first connecting rod mechanism 240 .

[0074] In this embodiment, Figure 6 As shown, in order to support the plate frame beam system 310, a second connecting member is also included. In order to prevent the plate frame beam system 310 from tilting to affect the test results, it is necessary to ensure that the plate frame beam system 310 is always horizontal. The second connecting member includes a constraint fixture bracket 320 and a plurality of second link mechanisms 330 arranged at a certain distance. The second link mechanism 330 includes a fourth link 331 and a fifth link 332. One end of the fourth link 331 is rotatably connected to one of the support holes 1111 of the second group of support holes 1111, and the other end of the fourth link 331 is rotatably connected to the constraint fixture bracket 320. One end of the fifth link 332 is rotatably connected to one of the support holes 1111 of the fourth group of support holes 1111, and the other end of the fifth link 332 is rotatably connected to the constraint fixture bracket 320. There are two second link mechanisms 330. The top of the constraint fixture bracket 320 is fixedly connected to the two ends of the fifth link 332. The plate frame beam system 310 is fixed on the constraint fixture bracket 320 and faces the hammer head 220.

[0075] Preferably, the second connecting member also includes a third rotating rod 340 and a fourth rotating rod 350, the third rotating rod 340 is rotatably connected to the second group of support holes 1111, one end of the fourth connecting rod 331 is fixedly connected to the third rotating rod 340 so that one end of the fourth connecting rod 331 is rotatably connected to one of the support holes 1111 of the second group of support holes 1111, the fourth rotating rod 350 is rotatably connected to the fourth group of support holes 1111, and one end of the fifth connecting rod 332 is fixedly connected to the fourth rotating rod 350 so that one end of the fifth connecting rod 332 is rotatably connected to one of the support holes 1111 of the fourth group of support holes 1111.

[0076] In this embodiment, Figure 3 and Figure 4 As shown, since the hammer head 220 is heavy, in order to ensure safety and stability, a plurality of second reinforcing connecting rods are further provided on the second connecting rod mechanism 330 .

[0077] In this embodiment, Figure 1 and Figure 2 As shown, since the hammer 220 has a large weight, a safety mechanism 700 is also included, which is arranged on the upper part of the crossbeam 122 in the main frame structure 120 and is used for detachable connection with the hammer 220 to prevent the hammer 220 from accidentally falling. When a test is required, the safety mechanism 700 releases the hammer 220 to conduct the test.

[0078] In this embodiment, the safety mechanism 700 includes a winch 710, a wire rope 720 and two pulleys 730; the hammer head 220 seat and the winch 710 are installed on the side of the top frame by screws, and a pulley 730 is installed at each end above the top frame. One end of the wire rope 720 is fixed to the hammer head 220, and the other end is fixed to the plate frame beam system 310, and the middle part passes through a pulley 730, the winch 710 and another pulley 730.

[0079] In this embodiment, the hammer head 220 includes a striking portion 221 and a counterweight 222, wherein the striking portion 221 is fixed to the counterweight 222, and the weight of the counterweight 222 is adjusted by adding or removing weights in the counterweight 222, and both ends of the second connecting rod 242 are fixed to the counterweight 222. In this embodiment, the counterweight 222 is a counterweight box.

[0080] This embodiment also includes a control mechanism 800, including a power switch 810 and a control console 820. The power switch 810 is fixed to the middle of one of the support columns 121 with screws. Several power lines are connected to the control console 820. The control console 820 is used to control the operation of the rotating drive member 410 and the solenoid valve.

[0081] In this embodiment, the rotation driving member 410 is a motor-reducer combination.

[0082] Example 2

[0083] Example 2 provides a modular collision impact installation test method, such as Figure 1-Figure 6 As shown, the modular collision impact test device applied to the above-mentioned comprises the following steps:

[0084] Step 1: Fix the support structure 100 on the base plane so that the top frame mechanism 110 is located above the base plane;

[0085] Step 2: The first rotating rod 210 is rotatably connected to the first group of supporting holes 1111 of the top frame mechanism 110, the hammer head 220 is fixed to the first rotating rod 210 through the first connecting member, the rotating driving member 410 is fixed to the top frame mechanism 110, and the output shaft of the rotating driving member 410 is fixed to the first rotating rod 210;

[0086] Step 3: Rotate and connect the plate frame beam system 310 to the second group of support holes 1111 through the second connecting member, and attach a plurality of strain measuring members 311 to the plate frame beam system 310;

[0087] Step 4: The rotating driving member 410 is powered on to drive the first rotating rod 210 to rotate so as to drive the hammer head 220 to rotate upward in a first direction and then rotate downward in a second direction to strike the plate frame beam system 310 .

[0088] Specifically, step 1 is as follows: fix the fixed base 130 on the base plane by bolts and welding, fix four supporting columns 121 at the four corners of the fixed base 130 by bolts, and weld several elbow plates 124 between the supporting columns 121 and the fixed base 130 for reinforcement; weld and fix two adjacent supporting columns 121 by a cross beam 122; weld a plurality of channel steels 111 between the two supporting columns 121 as the top frame mechanism 110, and fix the adjacent channel steels 111 by bolts; and connect the acrylic baffle to the supporting column 121 and the cross beam 122 by screws.

[0089] In the specific implementation of this embodiment, the top frame mechanism 110 is composed of two channel steels 111, which are welded side by side. A first rotating rod 210 is inserted into the first group of support holes 1111, a second rotating rod 230 is inserted into the third group of support holes 1111, and a torque spring 630 and a ratchet 620 are added at both ends of the second rotating rod 230.

[0090] Step 2 is specifically as follows: the hammer head 220 is installed on the first rotating rod 210 and the second rotating rod 230 through two first link mechanisms 240. In each first link mechanism 240, one end of the first link 241 is fixed to the first rotating rod 210, the other end of one end of the first link 241 is rotatably connected to one end of the second link 242, the other end of the second link 242 is rotatably connected to one end of the third link 243, and the other end of the third link 243 is clamped or unclamped with the first connecting member through the fastener 610 to fix or unfix the first connecting member and the second rotating rod 230.

[0091] The hammer driving mechanism 400 is installed on the top frame mechanism 110 , and the gear shield is connected to the top frame mechanism 110 by screws.

[0092] Step 3 specifically includes: inserting a third rotating rod 340 into the third group of support holes 1111, inserting a fourth rotating rod 350 into the fourth group of support holes 1111, and installing the plate frame beam system 310 on the third rotating rod 340 and the fourth rotating rod 350 through two second link mechanisms 330, in each second link mechanism 330, one end of the fourth link 331 is rotatably connected to one of the support holes 1111 of the second group of support holes 1111, the other end of one end of the fourth link 331 is rotatably connected to one end of the fifth link 332, the other end of the fifth link 332 is rotatably connected to one end of the seventh link 333, the other end of the seventh link 333 is rotatably connected to one end of the eighth link 334, and one end of the eighth link 334 is rotatably connected to one of the support holes 1111 of the fourth group of support holes 1111.

[0093] According to the requirements of the test conditions, the height position of the hammer head 220 is determined, and the two first connecting rod mechanisms 240 and the first rotating rod 210 are assembled and adjusted according to this position. A counterweight box is installed at both ends of the second connecting rod 242 of the two first connecting rod mechanisms 240, and a hammer head 220 of the model required for the test is installed at the front end of the counterweight box; the plate frame beam system 310 is installed at the bottom of the two second connecting rod mechanisms 330.

[0094] Mark the strain measuring point position and the initial displacement measuring point position on the plate frame beam system 310, grind the strain measuring point until it is smooth, clean the plate frame beam system 310, attach the strain gauge, fix it to the constraint fixture bracket 320 with bolts, connect the wire and check whether the strain gauge is intact.

[0095] A pulley 730 is installed on each of the cross beams 122 at both ends above the top frame mechanism 110, and a winch 710 is installed on one side of the top frame mechanism 110. The wire rope 720 connects the counterweight box, the winch 710, the two pulleys 730, and the restraint tooling bracket 320 in sequence.

[0096] Step 4 specifically includes:

[0097] Step 401: Turn on the power switch, turn on the instruments and computer on the console, and start the debugging test device;

[0098] Step 402: Start the motor-reducer combination, the reducer output shaft extends from one end of the reducer housing, driving the first gear 420 to rotate, the first gear 420 is meshed with the third gear 510, the fourth gear is meshed with the second gear 430, driving the first rotating rod 210 to rotate, and adjusting the hammer head 220 to the required position of the test working condition;

[0099] Step 403: Control the instrument so that the solenoid valve is disconnected, the first gear 420 stops meshing with the third gear 510, the fourth gear stops meshing with the second gear 430, and the first rotating rod 210 drives the hammer head 220 to move forward and hit the plate frame beam system 310. The hammer head 220 rebounds after completing the impact, driving the first rotating rod 210 to move backward to the position of the ratchet 620. Due to the action of the ratchet 620 blocking the ruler, the rebound stops.

[0100] Step 404 : Remove the restraining fixture bracket 320 and measure the displacement and deformation of the plate frame beam system 310 .

[0101] The above embodiments are merely examples of the technical solutions of the present invention. The methods involved in the present invention are not limited to the contents described in the above embodiments, but are subject to the scope defined in the claims. Any modification, supplement or equivalent replacement made by a person skilled in the art based on the embodiment is within the scope of protection required by the claims of the present invention.

Claims

1. A modular collision impact test device, characterized in that: include: The supporting structure includes a top frame mechanism, and a plurality of groups of supporting holes are arranged on the top frame mechanism; A hammer head connection support mechanism comprises a first rotating rod and a hammer head, wherein the first rotating rod is rotatably connected to the first group of support holes, and the hammer head is fixed to the first rotating rod through a first connecting member; The tool fixing mechanism comprises a plate frame beam system, wherein the plate frame beam system is rotatably connected to the second group of support holes through a second connecting member, a plurality of strain measuring members are attached to the plate frame beam system, and a distance between the first group of support holes and the second group of support holes is determined according to a collision impact distance; The hammer driving mechanism includes a rotating driving member, which is powered to drive the first rotating rod to rotate so as to drive the hammer to rotate upward in a first direction and then rotate downward in a second direction to hit the plate frame beam system. The first direction is clockwise or counterclockwise, and the second direction is opposite to the first direction.

2. The modular collision impact test device according to claim 1, characterized in that: It also includes a speed reduction mechanism, which includes a first gear and a second gear, the first gear is fixed to the output shaft of the rotating drive member, the second gear is fixed to the first rotating rod, and the second gear is directly or indirectly meshed with the first gear.

3. The modular collision impact test device according to claim 2, characterized in that: When the second gear is indirectly meshed with the first gear, it also includes a first anti-rebound mechanism, the first anti-rebound mechanism includes a magnetic adsorption member, a third gear and a fourth gear, the magnetic adsorption member is fixed to the top frame mechanism, the third gear is movably connected to the top frame mechanism, the fourth gear is fixedly connected to the third gear, and the magnetic adsorption member makes the third gear be in the first position or the second position by adsorbing or releasing the third gear; When the third gear is in the first position, the third gear is meshed with the first gear, and the fourth gear is meshed with the second gear; When the third gear is in the second position, the third gear is disengaged from the first gear, and the fourth gear is disengaged from the second gear.

4. The modular collision impact test device according to claim 3, characterized in that: The top frame mechanism is provided with a first elastic member, and the first elastic member has a tendency to drive the third gear away from the magnetic adsorption member.

5. The modular collision impact test device according to claim 1, characterized in that: It also includes a second anti-rebound mechanism, which includes a second rotating rod, a fastener and a ratchet. The second rotating rod is rotatably connected to the third group of support holes, and the ratchet is fixed on the second rotating rod. The ratchet can rotate in the second direction but cannot rotate in the first direction. The fastener is set on the second rotating rod, and the fastener can fix or release the first connecting member to the second rotating rod by clamping or not clamping the first connecting member.

6. The modular collision impact test device according to claim 5, characterized in that: The second anti-rebound mechanism also includes a second elastic member, one end of the second elastic member is fixed to the ratchet, and the other end of the second elastic member is fixed to the buckle.

7. The modular collision impact test device according to claim 6, characterized in that: The first connecting member includes a plurality of first link mechanisms arranged at a certain distance apart, the first link mechanism includes a first link, a second link, a third link and a fourth link, one end of the first link is fixed to the first rotating rod, the other end of one end of the first link is rotatably connected to one end of the second link, the other end of the second link is rotatably connected to one end of the third link, the other end of the third link is rotatably connected to one end of the fourth link, one end of the fourth link is fixed or not fixed to the second rotating rod by adsorption or release of a fastener, and both ends of the second link are fixed to the hammer head.

8. The modular collision impact test device according to claim 1, characterized in that: The hammer head comprises an impact part and a counterweight, wherein the impact part is fixed on the counterweight, and the weight of the counterweight is adjusted by adding or removing weight in the counterweight.

9. The modular collision impact test device according to claim 1, characterized in that: It also includes a safety mechanism, which includes a hammer head seat, a winch, a wire rope and two pulleys; the hammer head seat and the winch are installed on the side of the top frame by screws, and a pulley is installed at each end above the top frame. One end of the wire rope is fixed to the first connecting piece, and the other end is fixed to the second connecting piece. The middle part passes through a pulley, the hammer head seat, the winch and another pulley.

10. A modular collision impact installation test method, characterized in that: The following steps are involved: Fix the support structure on the base plane so that the top frame mechanism is above the base plane; The first rotating rod is rotatably connected to the first group of supporting holes of the top frame mechanism, the hammer head is fixed to the first rotating rod through the first connecting member, the rotating driving member is fixed to the top frame mechanism and the output shaft of the rotating driving member is fixed to the first rotating rod; Rotatingly connecting the plate frame beam system to the second group of support holes through a second connecting member, and attaching a plurality of strain measuring members to the plate frame beam system; The rotary drive member is powered on to drive the first rotary rod to rotate so as to drive the hammer head to rotate upwards along a first direction and then rotate downwards along a second direction to strike the plate frame beam system.

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