CN216870340U

CN216870340U - Tension testing device

Info

Publication number: CN216870340U
Application number: CN202122999337.6U
Authority: CN
Inventors: 白仲文; 朱维民; 李庆良; 常波
Original assignee: China Resources Snow (china) Breweries; Canneed Instrument Group Ltd
Current assignee: China Resources Snow (china) Breweries; Canneed Instrument Group Ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-07-01
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a tension testing device which comprises a cart main body and a force measuring device, wherein the cart main body can move, can be locked and can be fixed; the force measuring device comprises a force measuring tool and a testing and adjusting device, the testing and adjusting device is arranged on the cart main body and is connected with the force measuring tool, the testing and adjusting device can adjust the height of the force measuring tool and can enable the force measuring tool to move so as to test the friction force between two objects, and therefore the device can be suitable for testing the friction force between products on each layer in a stacked product, is convenient for testing the friction force between different layers of products in the stacked product, and further improves the working efficiency.

Description

Tension testing device

Technical Field

The utility model relates to the technical field of tensile test equipment, in particular to a tensile test device.

Background

Currently, the friction between different layers of stacked products needs to be tested to predict the probability of displacement (stability) of the product during subsequent transport or movement. In the prior art, the friction force among different layers of stacked products is mainly tested through a dynamometer, and the friction force among different layers of products can be judged through the tension value of the dynamometer, so that a user can conveniently find the optimal product stacking mode and the optimal product fixing mode through measurement of tension data. However, when the dynamometer is used alone to test the frictional force between different layers of products of the stacked products, when the height of the stacked products is high, the frictional force between the products at the high level is not easy to test, the pedal support needs to be provided for the tester, so that the potential safety hazard exists to the tester, the test operation is not convenient, and the efficiency is not high.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the utility model aims to provide a tensile force testing device which is suitable for testing the frictional force between products in each layer in a stacked product, and particularly has strong applicability to the frictional force between high-level products.

The purpose of the utility model is realized by adopting the following technical scheme:

a tensile testing apparatus comprising:

a cart body that is movable and lockable and fixed;

the force measuring device comprises a force measuring tool and a test adjusting device, the test adjusting device is arranged on the cart main body and is connected with the force measuring tool, and the test adjusting device can adjust the height of the force measuring tool and can enable the force measuring tool to move so as to test the friction force between two objects.

Furthermore, the test adjusting device comprises a stretching device which is arranged on the cart main body and connected with the force measuring tool, and the stretching device is used for pulling the force measuring tool to move along the direction of generating the friction force.

Further, the stretching device comprises a tension rope, and the tension rope is used for pulling the force measuring tool to move.

Furthermore, the stretching device also comprises a power device, the power device is connected with the force measuring tool through the tension rope, and the power device is used for driving the tension rope to pull the force measuring tool to move.

Furthermore, the test adjusting device further comprises an adjusting assembly, wherein the adjusting assembly comprises a supporting frame and a pulley adjusting mechanism, the supporting frame is arranged on the cart main body in the vertical direction, and the pulley adjusting mechanism is movably arranged on the supporting frame and used for adjusting the height of the force measuring tool.

Further, the adjusting assembly further comprises a locking device for locking the movement of the pulley adjusting mechanism relative to the supporting frame.

Furthermore, the pulley adjusting mechanism comprises a fixed seat and a first pulley, the fixed seat is movably arranged on the supporting frame, the first pulley is arranged on the fixed seat in a rolling manner, one end of the tensile rope is connected with the force measuring tool, and the other end of the tensile rope is connected with the power device by bypassing the first pulley.

Further, still be provided with the mounting on the braced frame, the mounting is located pulley adjustment mechanism's top, pulley adjustment mechanism is still including the second pulley, the second pulley can set up with rolling on the fixing base, the one end of pulling force rope is fixed on the mounting, its other end is walked around in proper order the second pulley, is located third pulley on the dynamometry instrument with first pulley and with power device connects.

Furthermore, the support frame is also provided with a guide wheel for guiding the tension rope to be connected with the power device.

Furthermore, still be provided with the bracing piece on the shallow main part, the bracing piece is located test adjusting device's front end, the bracing piece is along with in the removal entering tray that is used for the stack goods of shallow main part, be provided with between the both ends of bracing piece and be used for keeping out the tray orientation the piece is blockked that shallow main part direction removed.

Compared with the prior art, the utility model has the beneficial effects that:

when the tension testing device is used, the trolley main body is moved to a predicted position for testing the friction force between two objects and is locked, and then the height of the force measuring tool is adjusted through the testing adjusting device, so that the force measuring tool can test the friction force between the two objects, the friction force between the two objects on a high layer can be conveniently tested, the testing working efficiency is improved, and the applicability is strong.

Drawings

FIG. 1 is a schematic structural diagram of a tensile testing apparatus for testing stacked goods according to the present invention;

FIG. 2 is a schematic view of another angle structure of the tension testing device for testing stacked goods according to the present invention;

FIG. 3 is a schematic structural diagram of the tension testing apparatus according to the present invention;

fig. 4 is another schematic angle structure diagram of the tension testing device of the present invention.

In the figure: 1. a cart body; 10. a universal caster; 100. a locking device; 11. a support frame; 110. a locking hole; 12. a support bar; 120. a blocking member; 13. a weight box; 2. a force measuring device; 20. a force measuring tool; 200. a third pulley; 21. testing the adjusting device; 210. a tension rope; 2100. a power plant; 211. a pulley adjustment mechanism; 2110. a fixed seat; 2111. a first pulley; 2112. a second pulley; 212. a locking device; 2120. a locking shaft; 213. a fixing member; 3. a binding band; 4. a guide wheel; 5. a tray; 6. a barrier plate.

Detailed Description

The present invention will be described with reference to the accompanying drawings and the detailed description, and it should be noted that, in the following description, various embodiments or technical features may be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The implementation mode is as follows:

as shown in fig. 1 to 4, the present invention shows a tension testing device, which includes a cart main body 1 and a force measuring device 2, wherein the cart main body 1 can move and can lock the moving position, the force measuring device 2 includes a force measuring tool 20 and a testing adjustment device 21, the testing adjustment device 21 is disposed on the cart main body 1 and is connected with the force measuring tool 20, and the testing adjustment device 21 can adjust the height of the force measuring tool 20 and can move the force measuring tool 20 to test the friction between two objects. In the using process of the tension testing device, the cart main body 1 is moved to the predicted position for testing the friction force between the objects and is locked, the height of the force measuring tool 20 is adjusted through the testing adjusting device 21, and the force measuring tool 20 is enabled to test the friction force between the two objects, so that the friction force between the two objects at the high level can be conveniently tested, the testing working efficiency is improved, and the applicability is strong.

The cart body 1 has casters 10 at the bottom thereof, and the casters 10 are provided with locking devices 100, so that the cart body 1 can be locked for movement by locking the casters 10; the locking device 100 is a locking device commonly used in the art for locking the caster 10, and thus the structure and the locking principle thereof will not be described in detail herein.

As an application scene, the tension testing device is used for testing the friction force between different layers of products in stacked products. When friction among different layers of products in the stacked product needs to be tested, the cart main body 1 is moved to a position close to the stacked product, the height of the force measuring tool 20 is adjusted to be flush with the height of the layer of goods to be tested through the test adjusting device 21, and then the force measuring tool 20 is used for testing the friction among the layer of goods to be tested and the adjacent layer of goods, so that the probability (stability) that the products generate displacement in the subsequent transportation or moving process is predicted, the testing working efficiency is improved, the method is also suitable for testing the friction among the goods on the upper layer in the stacked product, and the applicability is strong.

It should be noted that, in order to facilitate the force measuring tool 20 to test the friction force between the layer of goods to be tested and the adjacent layer of goods, before the test, the layer of goods to be tested is bound by the binding band 3, then the test end of the force measuring tool 20 is connected with the binding band 3, then the height of the force measuring tool 20 is adjusted to be flush with the height of the layer of goods to be tested by the test adjusting device 21, and the force measuring tool 20 is used for performing a tension test on the bound goods, so that the friction force test between the bound goods and the adjacent layer of goods can be completed.

In this embodiment, for the convenience of transportation, the products are stacked by stacking the products on the tray 5, that is, the tray 5 is placed on a horizontal ground, the products are stacked on the tray 5 one by one, and the tray 5 is provided with a blocking plate 6 which can move in the height direction of the stacked products. On the basis of the above structure, the cart body 1 is further provided with a support rod 12, the support rod 12 is located at the front end of the test adjusting device 21, the support rod 12 enters the tray 5 for stacking goods along with the movement of the cart body 1, and a blocking member 120 for blocking the tray 5 from moving towards the cart body 1 is arranged between the two ends of the support rod 12. That also can understand, promote shallow main part 1, let the vaulting pole in shallow main part 1 the place ahead insert the tray 5 of stack product and jack up tray 5, then step on the brake of universal caster 10, adjust the barrier plate 6 that can reciprocate, use barrier plate 6 to block the product of measurand layer below, ensure that the below product does not produce the displacement because of measuring layer product atress, and improve the stability of measurement.

In this embodiment, the testing adjustment device 21 includes a stretching device, the stretching device is disposed on the cart body 1 and connected to the force measuring tool 20, and the stretching device is used for pulling the force measuring tool 20. The force measuring tool 20 is a tension meter, the testing end of the tension meter is connected with the binding belt 3, the binding belt 3 is used for binding the goods on the layer to be tested in the stacked product, and the tension meter is pulled by the stretching device to move along the back direction of the friction force generated by the bound goods, so that the effect of testing the friction force between the goods on the layer to be tested in the stacked product and the goods on the adjacent layer is achieved. Specifically, the stretching device comprises a tension rope 210 and a power device 2100, the power device 2100 is connected with the force measuring tool 20 through the tension rope 210, the tension rope 210 is used for pulling the force measuring tool 20 to move along the direction of friction force generated by bound goods, and the power device 2100 is used for driving the tension rope 210 to pull the force measuring tool 20 to move.

Of course, in other embodiments, the stretching device may be replaced by a moving mechanism, and the moving mechanism may be a screw transmission mechanism or a linear driving mechanism, and the moving mechanism moves the tension meter along the direction in which the bound goods generate friction force, so as to achieve the effect of testing the friction force between the goods on the layer to be tested and the goods on the adjacent layer in the stacked product. Therefore, it is within the scope of the present invention for those skilled in the art to reasonably modify the structure of the stretching device and its equivalent functional structure.

In this embodiment, the testing and adjusting device 21 further includes an adjusting assembly, the adjusting assembly includes a supporting frame 11 and a pulley adjusting mechanism 211, and the supporting frame 11 is disposed on the cart body 1 along the vertical direction; a pulley adjustment mechanism 211 is movably provided on the support frame 11, the pulley adjustment mechanism 211 being used to adjust the height of the load cell 20. Specifically, the pulley adjustment mechanism 211 includes a fixed seat 2110 and a first pulley 2111, the fixed seat 2110 is movably disposed on the supporting frame 11, the first pulley 2111 is rollably disposed on the fixed seat 2110, one end of the tension cord 210 is connected to the force measuring tool 20, and the other end thereof is connected to the power device 2100 by passing around the first pulley 2111. That is, it can be understood that when friction between different layers of stacked products needs to be tested, the power device 2100 pulls the tension rope 210 to pull the force measuring tool 20 to move along the direction of the friction force generated by the bound goods, so as to complete the test; when the height of the tension meter needs to be adjusted, the fixing base 2110 is moved along the height direction of the supporting frame 11, and since one end of the tension rope 210 is connected with the tension meter and the other end thereof is connected with the power device 2100 by passing through the first pulley 2111, the effect of adjusting the height of the tension meter can be achieved by adjusting the height of the fixing base 2110.

In this embodiment, in order to enable the tension cord 210 to stably pull the tension meter to move, the support frame 11 is further provided with a fixing member 213, the fixing member 213 is located above the pulley adjusting mechanism 211, the pulley adjusting mechanism 211 further includes a second pulley 2112, the second pulley 2112 is rollably disposed on the fixing base 2110, one end of the tension cord 210 is fixed on the fixing member 213, and the other end thereof sequentially passes around the second pulley 2112, a third pulley 200 disposed on the force measuring tool, and the first pulley 2111 and is connected to the power device 2100. That is, it can be understood that one end of the tension meter, which is opposite to the testing end of the tension meter, is provided with the third pulley 200 through the connecting member, because one end of the tension rope 210 is fixed on the fixing member 213, and the other end of the tension rope sequentially bypasses the second pulley 2112, the third pulley 200 and the first pulley 2111 and then is connected with the power device 2100, the moving effect of the tension rope 210 driven by the power device 2100 to pull the tension meter is obviously more stable, and because the tension rope 210 connected with the tension meter has the double-layer tension rope 210, the tension rope 210 can bear a larger tension, so as to improve the service life of the present invention. In addition, the support frame 11 is further provided with a guide wheel 4 for guiding the tensile cord 210 to be connected with the power device 2100, the tensile cord 210 can be conveniently connected with the power device 2100 through the guide wheel 4, and the height of the connecting cord section of the tensile cord 210 connected with the tension meter is ensured to be consistent with the height of the goods to be tested in the testing process.

It should be noted that the power device 2100 is preferably a rope tensioner, the tension rope 210 is a steel rope, one end of the steel rope is fixed on the fixing member 213, and the other end of the steel rope sequentially passes through the second pulley 2112, the third pulley 200, the first pulley 2111 and the guide pulley 4, and finally is wound on a take-up roll of the rope tensioner. Therefore, when the height of the pulley adjusting mechanism 211 is adjusted to be consistent with the height of the goods to be tested in the stacked product, the tension meter is connected with the binding belt 3 for binding the goods to be tested, and finally the steel wire rope is wound by the steel wire rope tension machine to tighten the steel wire rope, so that the friction force test between the bound goods and the goods adjacent to the bound goods can be completed.

In this embodiment, a plurality of locking holes 110 are disposed on two opposite sides of the supporting frame 11, each locking hole 110 is disposed along the height direction of the supporting frame 11 at intervals, the fixing base 2110 is fixed on the supporting frame 11 by connecting the locking shaft 2120 with the locking hole 110, that is, the locking shaft 2120 penetrates through the fixing base 2110, and two ends of the locking shaft 2120 are respectively fixed in the locking holes 110 disposed on the supporting frame 11. When the height position of the pulley adjusting mechanism 211 needs to be adjusted, the locking shaft 2120 is pulled out from the locking hole 110, so that the effect of adjusting the height can be achieved.

Of course, in other embodiments, the pulley adjusting mechanism 211 may be connected and fixed with the supporting frame 11 by a sliding connection to achieve the effect of adjusting the height thereof. Therefore, it is obvious to those skilled in the art that the structure for adjusting the height of the pulley adjusting mechanism 211 by reasonably changing the connection manner with the supporting frame 11 also falls within the protection scope of the present invention.

In this embodiment, the adjustment assembly further comprises a locking device 212, and the locking device 212 is used for locking the movement of the pulley adjustment mechanism 211 relative to the support frame 11. That is, it can be understood that the locking device 212 includes the locking shaft 2120 and a plurality of locking holes 110, and the locking shaft 2120 penetrates through the fixing base 2110 and is connected with the locking holes 110 oppositely disposed on the supporting frame 11 to achieve the purpose of locking the pulley adjusting mechanism 211. Of course, in other embodiments, the locking device 212 may also be other locking structures, which are not limited herein, and it should also fall within the scope of the present invention for those skilled in the art to reasonably modify the structure of the locking device 212.

In this embodiment, the tensile testing apparatus further includes a control system, and the control system controls the operation of the whole apparatus to realize the automatic testing of the friction force between the layer of goods to be tested and the adjacent layer of goods in the stacked product. That is, it can be understood that the control system is a PLC control system, and when it is necessary to test the friction force between different layers of products in the stacked product, an operator binds the goods on the layer to be tested in the stacked product by the binding band 3, and connects the testing end of the tension meter with the binding band 3; then, the hand-held remote controller stands at a distance away from the safety of the stacked goods to operate so as to ensure the safety of operators; then, the cart body 1 is controlled by the remote controller to move towards the direction of stacking the products until the support rod 12 is inserted into the tray 5 and the blocking member 120 on the support rod 12 abuts against the tray 5; and finally, controlling a steel cable tensile machine to tension the steel cable, and then pulling the tension meter to test the friction force between the bound goods and the goods on the adjacent layer.

It should be noted that, as can be understood by those skilled in the art, the PLC control system controlling the tension testing device of the present invention to automatically test the friction force between the cargoes is the prior art, and the control principle thereof will not be described in detail herein.

In addition, the weight box 13 is further arranged on the cart main body 1, and the weight of the cart main body 1 is increased through the weight box 13, so that the weight of the equipment is balanced and more reliable. Before the test, the weight box 13 is empty, namely, weights such as sand and the like are not placed in the weight box 13, and if the tail of the equipment is found to have tilting signs during the test, the weights can be added into the equipment to stabilize the gravity center of the equipment.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A tensile testing apparatus, comprising:

a cart body (1), the cart body (1) being movable and lockable and fixed;

the cart comprises a cart body (1), a force measuring device (2), wherein the force measuring device (2) comprises a force measuring tool (20) and a testing adjusting device (21), the testing adjusting device (21) is arranged on the cart body (1) and is connected with the force measuring tool (20), and the testing adjusting device (21) can adjust the height of the force measuring tool (20) and can enable the force measuring tool (20) to move so as to test the friction force between two objects.

2. A tension testing device as claimed in claim 1, wherein: the test adjusting device (21) comprises a stretching device which is arranged on the cart main body (1) and connected with the force measuring tool (20), and the stretching device is used for pulling the force measuring tool (20) to move along the direction of generating the friction force.

3. A tension testing device as claimed in claim 2, wherein: the stretching device comprises a tension rope (210), and the tension rope (210) is used for pulling the force measuring tool (20) to move.

4. A tension testing device as claimed in claim 3, wherein: the stretching device further comprises a power device (2100), the power device (2100) is connected with the force measuring tool (20) through the tension rope (210), and the power device (2100) is used for driving the tension rope (210) to pull the force measuring tool (20) to move.

5. A tension testing device as claimed in claim 4, wherein: the test adjusting device (21) further comprises an adjusting assembly, the adjusting assembly comprises a supporting frame (11) and a pulley adjusting mechanism (211), the supporting frame (11) is arranged on the cart main body (1) along the vertical direction, and the pulley adjusting mechanism (211) is movably arranged on the supporting frame (11) and used for adjusting the height of the force measuring tool (20).

6. A tension testing device as claimed in claim 5, wherein: the adjusting assembly further comprises a locking device (212), and the locking device (212) is used for locking the pulley adjusting mechanism (211) to move relative to the supporting frame (11).

7. A tension testing device as claimed in claim 5, wherein: the pulley adjusting mechanism (211) comprises a fixed seat (2110) and a first pulley (2111), the fixed seat (2110) is movably arranged on the supporting frame (11), the first pulley (2111) is arranged on the fixed seat (2110) in a rolling manner, one end of the tension rope (210) is connected with the force measuring tool (20), and the other end of the tension rope is connected with the power device (2100) by passing around the first pulley (2111).

8. A tension testing device as claimed in claim 7, wherein: still be provided with mounting (213) on braced frame (11), mounting (213) are located the top of pulley adjustment mechanism (211), pulley adjustment mechanism (211) are still including second pulley (2112), second pulley (2112) rollably sets up on fixing base (2110), the one end of pulling force rope (210) is fixed on mounting (213), and its other end is walked around in proper order second pulley (2112), is located third pulley (200) on dynamometry instrument (20) with first pulley (2111) and with power device (2100) are connected.

9. A tension testing device as claimed in claim 7, wherein: the supporting frame (11) is also provided with a guide wheel (4) for guiding the tension rope (210) to be connected with the power device (2100).

10. A tension testing device as claimed in claim 1, wherein: still be provided with bracing piece (12) on shallow main part (1), bracing piece (12) are located the front end of test adjusting device (21), bracing piece (12) are followed in the removal entering of shallow main part (1) is used for tray (5) of stack goods, be provided with between the both ends of bracing piece (12) and be used for keeping out tray (5) orientation piece (120) that the shallow main part (1) direction removed.