CN220583742U - Test equipment - Google Patents

Abstract

The application discloses test equipment, which comprises a test platform, wherein the test platform is used for fixing a stretcher, a binding assembly is arranged on the test platform, the binding assembly is connected with a connecting assembly, and the other end of the connecting assembly is connected with a tension loading mechanism; the binding assembly comprises a connector, the connector is connected with a plurality of first binding bands, the first binding bands are used for connecting the side ends of the stretcher, the connector is further connected with a plurality of second binding bands, the other ends of the second binding bands are connected with winders fixed on the test platform, the winders are used for winding and unwinding the second binding bands, the middle part of each second binding band is sleeved on the connecting assembly, and the binding assembly has the advantages of being capable of accurately acting on the center of gravity position of the stretcher and improving accuracy of test data.

Description

Test equipment

Technical Field

The application relates to the technical field of mechanical test devices, in particular to test equipment.

Background

The stretcher can be used as a logistics auxiliary device for temporarily loading and unloading cargos, and mechanical test is required to be carried out on the stretcher in the same batch after the stretcher is manufactured so as to acquire the mechanical property data of the stretcher in the batch. When the existing mechanical test device performs a tensile test on a stretcher, the stretcher is fixed on a test platform, the stretcher is connected with a steel wire rope, the other end of the steel wire rope is connected with a tensile mechanism to pull the steel wire rope, so that tension is generated on the stretcher, the stress state of the stretcher is observed and recorded in the process, but because the stretcher is complicated in structure, the stretcher is directly connected with the gravity center position of the stretcher through the steel wire rope and is difficult to accurately act on the gravity center position of the stretcher, and the stretcher is difficult to obtain accurate test data because local deformation occurs due to larger deflection of the stress center during the tensile test.

Disclosure of Invention

The main aim of this application is to provide a test equipment, aims at solving the technical problem that current mechanical test device is difficult to accurately act on stretcher focus position, leads to being difficult to obtain accurate test data.

In order to achieve the above purpose, the application provides a test device, which comprises a test platform, wherein the test platform is used for fixing a stretcher, a binding assembly is arranged on the test platform, the binding assembly is connected with a connecting assembly, and the other end of the connecting assembly is connected with a tension loading mechanism; the binding assembly comprises a connector, the connector is connected with a plurality of first binding bands, the first binding bands are used for connecting the side ends of the stretcher, the connector is also connected with a plurality of second binding bands, the other ends of the second binding bands are all connected with winders fixed on the test platform, and the winders are used for winding and unwinding the second binding bands so that the middle parts of the second binding bands are sleeved on the connecting assembly.

Optionally, the winder includes the mount that is fixed in on the test platform, and the mount lateral wall is provided with driving motor, and driving motor is connected with the activity roller that is located the mount, and second bandage one end is around locating on the activity roller.

Optionally, bind the subassembly and still include the connecting plate, the connecting plate is connected in a plurality of mount tops, and the opening staple bolt that is connected with is all dismantled at connecting plate both ends, and the opening staple bolt is used for the cover to locate the skeleton of stretcher side.

Optionally, one end of the first binding band is connected with a clamp, and the clamp is used for being clamped with a framework at the side end of the stretcher.

Optionally, the connecting assembly comprises a first pull rope connected with the tension loading mechanism, the first pull rope is connected with a tension meter, the other end of the tension meter is connected with a second pull rope, the second pull rope is connected with a bearing shaft, and the second binding belt is sleeved on the bearing shaft.

Optionally, the pulling force loading mechanism includes the frame, and the frame is interior to be slided and is provided with first movable beam and second movable beam, and first movable beam is located and is close to the tensiometer one side, and first stay cord activity runs through frame and first movable beam and connect the second movable beam, is provided with multiunit telescopic cylinder between first movable beam and the second movable beam, is provided with a plurality of compression springs between first movable beam and the frame inner wall.

Optionally, the frame inner wall is connected with the guide bar of multiunit and compression spring quantity the same, and the guide bar all activity runs through first movable beam, and a plurality of compression springs are located on the guide bar that corresponds respectively.

Optionally, a hook is disposed on one side of the first moving beam of the second movement Liang Kaojin, and the second moving beam is connected to the first pull rope through the hook.

Optionally, both ends of the first movable beam and the second movable beam are connected with movable shafts, guide sliding grooves matched with the movable shafts are formed in two side walls of the frame, and the movable shafts are used for moving along the length directions of the guide sliding grooves.

Optionally, the test platform is provided with a vertical support, the frame is detachably connected to the side wall of the vertical support, and the height of the frame is adjustable.

The beneficial effects that this application can realize are as follows:

according to the stretcher, the binding assembly is configured to serve as a force transmission component of the stretcher, when a tensile test is conducted, the first binding belt is connected to the side end of the stretcher, the middle part of the second binding belt is sleeved on the connecting assembly, the second binding belt is wound up through the winding device to be tightly connected with the connecting assembly, the stretcher is convenient to install quickly, the connecting assembly is loaded with tensile force through the tensile force loading mechanism, tension force is generated on the stretcher, the tensile test is conducted, stress state change of the stretcher is observed in the test process, the binding assembly is connected to the side end of the stretcher through a plurality of first binding belts in the process, acting force of the stretcher is dispersed and uniform, the contact area of the binding assembly and the stretcher is large, the larger contact area can help to accurately cover the center position of the stretcher, so that the force transmission is conducted through the binding assembly, the force can be conveniently and accurately acted on the center of gravity position of the stretcher, and accuracy of test data is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of a test apparatus according to an embodiment of the present application;

FIG. 2 is a schematic view of a binding assembly according to an embodiment of the present application;

FIG. 3 is a schematic view of another view of a binding assembly according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a connection assembly according to an embodiment of the present application;

fig. 5 is a schematic diagram of a connection structure between the tension loading mechanism and the first pull rope in the embodiment of the present application.

Reference numerals:

100-test platform, 200-stretcher, 300-binding component, 310-connector, 320-first binding band, 330-second binding band, 340-winder, 341-fixing frame, 342-driving motor, 343-movable roller, 350-connecting plate, 360-opening hoop, 370-clamp, 400-tension loading mechanism, 410-frame, 411-guide chute, 420-first moving beam, 430-second moving beam, 440-telescopic cylinder, 450-compression spring, 460-guide rod, 470-hook, 480-movable shaft, 500-connecting component, 510-first pull rope, 520-tension meter, 530-second pull rope, 540-bearing shaft, 600-vertical bracket.

The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship between the components, the movement condition, and the like in a specific posture, and if the specific posture is changed, the directional indicator is correspondingly changed.

In the present application, unless explicitly specified and limited otherwise, the terms "coupled," "secured," and the like are to be construed broadly, and for example, "secured" may be either permanently attached or removably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

Examples

Referring to fig. 1 to 5, the present embodiment provides a test apparatus, including a test platform 100, the test platform 100 is used for fixing a stretcher 200, a binding assembly 300 is provided on the test platform 100, the binding assembly 300 is connected with a connection assembly 500, and the other end of the connection assembly 500 is connected with a tension loading mechanism 400; the binding assembly 300 includes a connector 310, the connector 310 is connected with a plurality of first binding bands 320, the first binding bands 320 are used for connecting with side ends of the stretcher 200, the connector 310 is also connected with a plurality of second binding bands 330, the other ends of the second binding bands 330 are connected with winders 340 fixed on the test platform 100, the winders 340 are used for winding and unwinding the second binding bands 330, and the middle parts of the second binding bands 330 are sleeved on the connecting assembly 500.

In this embodiment, when the binding assembly 300 is configured to serve as a force transmission component for the stretcher 200 to perform a tensile test, the first binding assembly 320 is connected to the side end of the stretcher 200, the middle part of the second binding assembly 330 is sleeved on the connecting assembly 500, the second binding assembly 330 is wound up by the winding device 340 to be tightly connected with the connecting assembly 500, so that the quick installation is facilitated, and the connecting assembly 500 is loaded with tension by the tension loading mechanism 400 at the moment, so that tension is generated on the stretcher 200 to perform the tensile test, and in the test process, the stress state change of the stretcher 200 is observed.

It should be noted that, the first binding band 320 and the second binding band 330 are two sets, and the first binding band 320 and the second binding band 330 have four stress points, and the four stress points enclose a rectangle, so that the stress is stable; the test platform 100 may be provided with a plurality of sets of locking mechanisms for fixing the stretcher 200, so that the stretcher 200 can be firmly fixed, and the locking mechanisms are realized in a plurality of manners, such as bolt locking, without limitation.

As an alternative embodiment, the winder 340 includes a fixing frame 341 fixed on the test platform 100, a driving motor 342 is disposed on a side wall of the fixing frame 341, the driving motor 342 is connected with a movable roller 343 located in the fixing frame 341, and one end of the second binding belt 330 is wound on the movable roller 343.

In this embodiment, when the winding is needed, the driving motor 342 drives the movable roller 343 to rotate, so as to automatically wind the second binding belt 330, so that the second binding belt 330 tightens the connection assembly 500, the operation is convenient and fast, and after the test is finished, the driving motor 342 can reversely rotate to enable the second binding belt 330 to loosen the connection assembly 500, so that the automation degree is high. It should be noted that, the driving motor 342 may be a stepper motor or a servo motor, so that the rotation speed and the forward and reverse rotation can be precisely controlled, thereby meeting the use requirement.

As an alternative embodiment, the binding assembly 300 further includes a connection plate 350, the connection plate 350 is connected to the tops of the plurality of fixing frames 341, two ends of the connection plate 350 are detachably connected with an opening hoop 360, and the opening hoop 360 is used for sleeving a framework at the side end of the stretcher 200.

In this embodiment, the connecting plate 350 is located below the stretcher 200, two ends of the connecting plate 350 can be connected with the framework at the side end of the stretcher 200 through the opening hoops 360, so that the connection point with the stretcher 200 is increased, the stress range of the stretcher 200 is further improved, the accuracy of covering the central position of the stretcher 200 is further improved, and the opening hoops 360 are detachably connected with two ends of the connecting plate 350.

The open hoop 360 is an annular sleeve with a certain opening, and the open hoop 360 has a certain elasticity, so that a framework (generally a circular shaft) at the side end of the stretcher 200 can be clamped into the open hoop 360 through the opening; here can all offer the mounting hole in opening staple bolt 360 and connecting plate 350 corresponding position, can be fixed in connecting plate 350 one end with opening staple bolt 360 through inserting fastener such as bolt behind its mounting hole to realize dismantling the connection, here can offer mutually supporting step groove respectively at opening staple bolt 360 and connecting plate 350 link, the mounting hole is offered in step groove position correspondence, does not have the arch after the assembly, reduces the interference risk.

As an alternative embodiment, the first straps 320 are each connected at one end to a clip 370, and the clip 370 is adapted to be snapped onto the frame of the stretcher 200 at the side end.

In this embodiment, the first binding band 320 may be fast clamped to the frame at the side end of the stretcher 200 through the clip 370, so that the installation and the disassembly are fast, and the operation is convenient and fast. It should be noted that, the clip 370 is generally mounted on the side end of the stretcher 200 at a position where the frame has a node (i.e., a protruding portion), so that when the first strap 320 is pulled, the clip 370 can abut against the node to avoid sliding.

As an alternative embodiment, the connection assembly 500 includes a first pull rope 510 connected to the tension loading mechanism 400, the first pull rope 510 is connected to a tension meter 520, the other end of the tension meter 520 is connected to a second pull rope 530, the second pull rope 530 is connected to a bearing shaft 540, and the second strap 330 is sleeved on the bearing shaft 540.

In this embodiment, when a tension test is performed, the first pull rope 510 and the second strap 330 are stretched and pulled under the action of the tension loading mechanism 400, and the tension loading mechanism 400 can read tension data in real time through the tension meter 520 (which is electrically connected to a computer) in the process of gradually loading tension, so that recording and analysis are facilitated.

As an alternative embodiment, the tension loading mechanism 400 includes a frame 410, a first moving beam 420 and a second moving beam 430 are slidably disposed in the frame 410, the first moving beam 420 is located at a side close to the tension gauge, a first pull rope movably penetrates the frame 410 and the first moving beam 420 and is connected with the second moving beam 430, a plurality of groups of telescopic cylinders 440 are disposed between the first moving beam 420 and the second moving beam 430, and a plurality of compression springs 450 are disposed between the first moving beam 420 and an inner wall of the frame 410.

In this embodiment, when the tension loading mechanism 400 works, the telescopic cylinder 440 (generally a hydraulic cylinder) is extended, so as to drive the first moving beam 420 and the second moving beam 430 to slide in the frame 410 in directions away from each other, and the first moving beam 420 slowly moves under the action of the compression spring 450, so that the telescopic amount of the telescopic cylinder 440 is decomposed into the moving amounts of the first moving beam 420 and the second moving beam 430, the moving amount of the second moving beam 430 can be buffered under the action of the same loading force, the second moving beam 430 is prevented from instantaneously reaching the corresponding moving amount, the tension of the first pull rope 510 and the second pull rope 530 is buffered, the loading process of the force is delayed, the action of slow application force is achieved, and the current loading force is simultaneously read in real time through the tension gauge 520, so that the stress change process of the stretcher 200 can be conveniently observed, and the accuracy of experimental data is improved. In addition, the tension loading mechanism 400 has a buffering function, so that the overall stability during operation is improved, the first stay rope 510 is prevented from being broken or the first moving beam 420 and the second moving beam 430 are prevented from being deformed due to suddenly applying a large force, and the service life is prolonged.

It should be noted that, here, two groups of the telescopic cylinder 440 and the compression spring 450 are provided, and are symmetrically arranged at two sides of the first pull rope 510; the first pull rope 510 and the second pull rope 530 are both steel wire ropes, and the strength is high.

As an alternative embodiment, a plurality of groups of guide rods 460 with the same number as the compression springs 450 are connected to the inner wall of the frame 410, the guide rods 460 movably penetrate through the first moving beam 420, and the compression springs 450 are respectively sleeved on the corresponding guide rods 460.

In this embodiment, when the first moving beam 420 slides, the guide rod 460 can perform a good guiding function on the first moving beam 420, so that the first moving beam 420 can perform stable linear movement, and meanwhile, the compression spring 450 is sleeved on the guide rod 460, so that the compression spring 450 can be prevented from being biased, and the buffering stability can be improved.

As an alternative embodiment, a hook 470 is provided at a side of the second moving beam 430 adjacent to the first moving beam 420, and the second moving beam 430 is connected to the first pulling rope 510 through the hook 470. The second moving beam 430 is connected with the first pull rope 510 through the hook 470, and one end of the first pull rope 510 can be folded into a hanging ring matched with the hook 470, so that the first pull rope 510 can be conveniently installed and removed. It should be noted that, both ends of the first pull rope 510 and the second pull rope 530 can be bent into a hanging ring, so as to facilitate rapid assembly and disassembly

As an alternative embodiment, both ends of the first moving beam 420 and the second moving beam 430 are connected with a movable shaft 480, both side walls of the frame 410 are provided with a sliding guide slot 411 engaged with the movable shaft 480, and the movable shaft 480 is used to move along the length direction of the sliding guide slot 411.

In the present embodiment, when the first and second moving beams 420 and 430 are moved, the movable shaft 480 may be moved along the length direction of the guide chute 411, thereby achieving stable sliding of the first and second moving beams 420 and 430 within the frame 410.

As an alternative embodiment, the test platform 100 is provided with a vertical support 600, the frame 410 is detachably connected to the side wall of the vertical support 600, and the height of the frame 410 is adjustable.

In this embodiment, the frame 410 is connected to the side wall of the vertical bracket 600, so that the whole tension loading mechanism 400 is higher than the test platform 100, so as to ensure that the first pull rope 510 and the second pull rope 530 are matched with the height position of the stretcher 200 after being fixed, and the first pull rope 510 and the second pull rope 530 are in a horizontal state when being stressed; similarly, according to different specifications of the stretcher 200, the height of the stretcher 200 may be changed after fixing, at this time, the connection height of the frame 410 on the side wall of the vertical support 600 may be adjusted, at this time, a plurality of first positioning holes may be formed on the side wall of the vertical support 600 along the height direction of the side wall of the vertical support, a plurality of second positioning holes matched with the first positioning holes may be formed on the side wall of the frame 410, and the first positioning holes and the second positioning holes may be directly penetrated by fasteners (bolts or pins), so as to realize detachable connection, and the fasteners are inserted after aligning the second positioning holes with the first positioning holes of different heights, so that the adjustment of the connection height of the frame 410 is realized.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims (10)

1. The test equipment is characterized by comprising a test platform, wherein the test platform is used for fixing a stretcher, a binding assembly is arranged on the test platform, the binding assembly is connected with a connecting assembly, and the other end of the connecting assembly is connected with a tension loading mechanism; wherein,

the binding assembly comprises a connector, the connector is connected with a plurality of first binding bands, the first binding bands are used for being connected with the side ends of the stretcher, the connector is further connected with a plurality of second binding bands, the other ends of the second binding bands are connected with winders fixed on the test platform, and the winders are used for winding and unwinding the second binding bands, so that the middle parts of the second binding bands are sleeved on the connecting assembly.

2. The test apparatus of claim 1, wherein the winder comprises a fixed frame fixed on the test platform, a driving motor is arranged on the side wall of the fixed frame, the driving motor is connected with a movable roller positioned in the fixed frame, and one end of the second binding belt is wound on the movable roller.

3. The test apparatus of claim 2, wherein said binding assembly further comprises a connecting plate, said connecting plate being connected to the top of a plurality of said holders, said connecting plate having two ends detachably connected with open hoops for engaging with a frame of said stretcher side.

4. A test device according to any one of claims 1 to 3, wherein one end of the first strap is connected to a clip for engaging a frame of the stretcher side.

5. The test apparatus of claim 1, wherein the connection assembly comprises a first pull cord connected to the tension loading mechanism, the first pull cord is connected to a tension meter, a second pull cord is connected to the other end of the tension meter, the second pull cord is connected to a load bearing shaft, and the second strap is sleeved on the load bearing shaft.

6. The test apparatus of claim 5, wherein the tension loading mechanism comprises a frame, a first moving beam and a second moving beam are slidably disposed in the frame, the first moving beam is located near one side of the tension meter, the first pull rope movably penetrates through the frame and the first moving beam and is connected with the second moving beam, a plurality of groups of telescopic cylinders are disposed between the first moving beam and the second moving beam, and a plurality of compression springs are disposed between the first moving beam and the inner wall of the frame.

7. The test device of claim 6, wherein a plurality of groups of guide rods with the same number as the compression springs are connected to the inner wall of the frame, the guide rods movably penetrate through the first movable beam, and the compression springs are respectively sleeved on the corresponding guide rods.

8. The test apparatus of claim 6, wherein a hook is disposed on a side of said second movable beam adjacent to said first movable beam, said second movable beam being coupled to said first pull cord by said hook.

9. The test equipment of claim 6, wherein two ends of the first moving beam and the second moving beam are connected with movable shafts, two side walls of the frame are provided with guide sliding grooves matched with the movable shafts, and the movable shafts are used for moving along the length direction of the guide sliding grooves.

10. A testing apparatus according to any one of claims 6 to 9, wherein the testing platform is provided with a vertical support, the frame is detachably connected to the side walls of the vertical support, and the frame is height-adjustable.