CN218726064U - Steel band tensile test frock - Google Patents
Steel band tensile test frock Download PDFInfo
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- CN218726064U CN218726064U CN202222706280.0U CN202222706280U CN218726064U CN 218726064 U CN218726064 U CN 218726064U CN 202222706280 U CN202222706280 U CN 202222706280U CN 218726064 U CN218726064 U CN 218726064U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 146
- 239000010959 steel Substances 0.000 title claims abstract description 146
- 238000009864 tensile test Methods 0.000 title claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 128
- 238000004804 winding Methods 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model relates to a battery test technical field specifically discloses steel band tensile test frock. The steel strip tension test tool comprises two supporting pieces and a connecting piece, wherein the two supporting pieces are arranged at intervals and used for winding a steel strip to be tested; each supporting piece comprises a supporting part, one side of each supporting part is provided with a plane contact part, and the other side of each supporting part is provided with a convex part; each supporting piece corresponds to one connecting piece, and any position on the supporting part along the length direction of the supporting part can be detachably connected with the corresponding connecting piece; the stress ends of the two connecting pieces are oppositely arranged or arranged in an opposite way. The steel strip tension test tool can test the tensile resistance and the expansion resistance of a steel strip at the same time, is high in universality, simplifies the test process, and is high in test efficiency and low in test cost.
Description
Technical Field
The utility model relates to a battery test technical field especially relates to steel band tensile test frock.
Background
The packaging pressure of the fuel cell stack is taken as a core key parameter of the stack performance, and the performance and the service life of the fuel cell stack are directly influenced. The fuel cell stack is generally assembled by press fitting, and during assembly, the stack is compressed to a target assembly force on a press fitting device, and then the stack is locked by a steel belt.
The tensile resistance of the steel strip is an important index for measuring the mechanical property of the steel strip, the steel strip applied to the fuel cell stack also needs to have good expansion resistance, and the tensile resistance and the expansion resistance of the steel strip need to be tested before the fuel cell stack is assembled. The steel belt tension testing tool in the prior art can only test the tensile resistance of the steel belt, and is poor in universality. If the anti-expansion performance of the steel belt needs to be tested, a set of test tool needs to be additionally designed, the two sets of test tools need to be tested respectively during each test, the test process is complicated, the test efficiency is low, and the test cost is high.
Therefore, it is necessary to provide a steel strip tension testing tool to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steel band tensile test frock can test the stretching resistance performance and the anti-expansion capacity performance of steel band simultaneously, and the commonality is stronger, simplifies the testing process, and efficiency of software testing is higher, and testing cost is lower.
As the conception, the utility model adopts the technical proposal that:
the utility model provides a steel band tensile test frock, include:
the two supporting pieces are arranged at intervals and used for winding a steel belt to be detected; each support piece comprises a support part, one side of each support part is provided with a plane contact part, and the other side of each support part is provided with a convex part;
each support part corresponds to one connecting piece, and any position on the support part along the length direction of the support part can be detachably connected with the corresponding connecting piece; the stress ends of the two connecting pieces are oppositely arranged or arranged back to back.
As a preferable scheme of the steel strip tension test tool, the number of the protruding parts arranged on the supporting part is at least three, and the at least three protruding parts are arranged at intervals along the length direction of the supporting part.
As a preferred scheme of the steel strip tension test tool, the supporting part is of a cuboid structure, two opposite side surfaces of the cuboid structure are a first side surface and a second side surface respectively, and the first side surface forms the plane contact part; each of the supports further comprises:
the first cylindrical parts are of 3/4 cylindrical structures, the two first cylindrical parts are respectively positioned at two ends of the second side surface of the supporting part along the length direction, and the gaps of the first cylindrical parts of the 3/4 cylindrical structures can be attached to the second side surface of the supporting part and the side surface adjacent to the second side surface;
the second cylindrical part is of a 2/4 cylindrical structure, the second cylindrical part is positioned between the two first cylindrical parts, the circle center of the second cylindrical part is superposed with the middle point of the connecting line of the two first cylindrical parts, the plane of the second cylindrical part of the 2/4 cylindrical structure is attached to the second side surface of the supporting part, and the cylindrical surfaces of the first cylindrical part and the second cylindrical part form the protruding part.
As an optimal scheme of the steel strip tension test tool, each first cylindrical portion is provided with a limiting groove, and the steel strip to be tested can be limited in the limiting grooves.
As an optimal scheme of the steel strip tension test tool, two limiting protrusions arranged at intervals along the height direction of the first cylindrical part are convexly arranged on the cylindrical surface of each first cylindrical part, and a limiting groove is formed between the two limiting protrusions.
As an optimal scheme of the steel strip tension test tool, a first fixing hole is formed in the connecting piece, a plurality of second fixing holes are formed in the supporting piece along the length direction of the supporting piece at intervals, and the fixing piece can penetrate through the first fixing hole and the second fixing holes in sequence.
As a preferable scheme of the steel strip tension test tool, the connecting piece comprises a U-shaped clamping plate and a push-pull part which are connected, two U-shaped arms of the U-shaped clamping plate can clamp the supporting piece along the vertical direction, and the two U-shaped arms are provided with the first fixing holes.
As an optimal scheme of the steel strip tension test tool, the steel strip tension test tool further comprises an auxiliary test assembly, and the auxiliary test assembly comprises:
when the two connecting pieces are arranged oppositely, each connecting piece can be detachably connected with one auxiliary stretching piece, and the testing equipment can apply tension to the supporting piece through the auxiliary stretching pieces; and/or
The auxiliary fixing piece, the both ends of auxiliary fixing piece can be connected in two through corresponding installed part respectively support piece.
As a preferable scheme of the steel strip tension test tool, the auxiliary stretching piece is provided with a stretching perforation.
As a preferred scheme of the steel strip tension test tool, an internal thread is arranged on the connecting piece, an external thread is arranged at one end of the auxiliary stretching piece, and the auxiliary stretching piece is in threaded connection with the connecting piece.
The utility model has the advantages that:
the utility model provides a steel strip tension test tool, which is characterized in that a plane contact part and at least three arc contact parts are arranged on a support part, the plane contact part is in surface contact with a steel strip to be tested, and the friction force between the plane contact part and the steel strip to be tested is larger; the arc-shaped contact part is in point contact with the steel belt to be measured, and the friction force between the arc-shaped contact part and the steel belt to be measured is small. When the tensile resistance and the expansion resistance of the steel belt to be tested are required to be tested, the friction force between the steel belt to be tested and the supporting pieces is required to be reduced, at the moment, the steel belt to be tested can be wound after the two supporting pieces are oppositely arranged on the sides provided with the plane contact parts, so that the steel belt to be tested is in contact with the arc contact parts, and the influence of the friction force between the supporting pieces and the steel belt to be tested on a test result is reduced; when the tensile resistance performance and the anti-expansion performance of the steel belt to be tested in actual use are required to be tested, the steel belt to be tested can be wound after one side of the arc-shaped contact part of the two supporting parts is arranged oppositely, so that the steel belt to be tested is contacted with the plane contact part, the tensile resistance performance and the anti-expansion performance of the steel belt to be tested under the condition that the steel belt to be tested is subjected to the friction force of the battery module in actual use are simulated, and the accuracy of a test result is ensured. By arranging the connecting piece, the connecting piece is connected with different positions of the supporting part, so that the overall performance or the unilateral performance of the steel belt to be tested can be correspondingly tested; when the two connecting pieces are arranged oppositely, the test equipment can apply thrust in opposite directions to the two connecting pieces between the two supporting pieces so as to test the anti-expansion force performance of the steel belt to be tested; when the two connecting pieces are arranged in a reverse manner, the testing equipment can apply pulling forces in opposite directions to the two connecting pieces so as to test the tensile resistance of the steel strip to be tested. Through the combination of the different conditions, the tensile resistance performance and the expansion resistance performance of the steel belt to be tested under different working conditions and different application environments can be tested, the universality of the steel belt tensile test tool is improved, the test process is simplified, the test cost is low, and the test efficiency is high.
Drawings
Fig. 1 is a schematic structural diagram of a steel strip tension testing tool provided by an embodiment of the present invention;
fig. 2 is a front view of a steel strip tension testing tool provided by the embodiment of the present invention;
fig. 3 is a first schematic diagram of the steel belt tension testing tool provided by the embodiment of the utility model for testing the unilateral expansion resistance performance of the steel belt to be tested;
fig. 4 is a schematic diagram ii of a steel strip tension test tool provided by an embodiment of the present invention for testing the unilateral expansion resistance performance of a steel strip to be tested;
fig. 5 is a first schematic diagram illustrating that the steel belt tension test tool provided by the embodiment of the present invention tests the overall anti-expansion performance of the steel belt to be tested;
fig. 6 is a schematic diagram two illustrating that the steel strip tension test tool provided by the embodiment of the present invention tests the overall anti-expansion performance of the steel strip to be tested;
fig. 7 is a first schematic diagram illustrating that the steel belt tension test tool provided by the embodiment of the present invention tests the overall tensile resistance of the steel belt to be tested;
fig. 8 is a second schematic diagram illustrating that the steel strip tensile testing tool provided in the embodiment of the present invention tests the overall tensile resistance of the steel strip to be tested;
fig. 9 is a first schematic view illustrating that the steel belt tension test tool provided by the embodiment of the present invention tests the unilateral tensile resistance of the steel belt to be tested;
fig. 10 is a schematic diagram two of the steel belt tension testing tool provided by the embodiment of the present invention for testing the unilateral tensile resistance of the steel belt to be tested.
In the figure:
100-steel belt to be tested;
1-a support; 10-a planar contact; 20-a projection; 30-a recess; 11-a support; 12-a first cylindrical portion; 13-a second cylindrical portion; 14-a second fixation hole;
2-a connector; 21-a U-shaped clamping plate; 22-a push-pull part;
3-auxiliary testing component; 31-an auxiliary tension member; 311, stretching and perforating; 32-auxiliary fixing parts;
4-fixing part.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1 to fig. 3, the present embodiment provides a steel strip tension testing tool, which includes two supporting members 1 and two connecting members 2, where the two supporting members 1 are disposed at an interval and used for winding a steel strip 100 to be tested; each support 1 comprises a support part 11, one side of the support part 11 is provided with a plane contact part 10, and the other side of the support part 11 is provided with a convex part 20; each supporting piece 1 corresponds to one connecting piece 2, and any position on the supporting part 11 along the length direction of the supporting part can be detachably connected with the corresponding connecting piece 2; the stress ends of the two connecting pieces 2 are oppositely arranged or arranged back to back.
The embodiment provides a steel strip tension test tool, a plane contact part 10 and a protruding part 20 are arranged on a support part 11, the plane contact part 10 is in surface contact with a steel strip 100 to be tested, and the friction force between the two is large; the convex portion 20 and the steel strip 100 to be measured are at least partially in point contact, and friction between the two is small. When the tensile resistance and the expansion resistance of the steel strip 100 to be tested need to be tested, the friction force between the steel strip 100 to be tested and the supporting members 1 needs to be reduced, at this time, the steel strip 100 to be tested can be wound after the two supporting members 1 are oppositely arranged at the sides provided with the plane contact parts 10, so that the steel strip 100 to be tested is in contact with the convex parts 20, and the influence of the friction force between the supporting members 1 and the steel strip 100 to be tested on the test result is reduced; when the tensile resistance and the expansion resistance of the steel strip 100 to be tested in actual use are required to be tested, the steel strip 100 to be tested can be wound after one side of the two supporting pieces 1 provided with the protruding parts 20 is oppositely arranged, so that the steel strip 100 to be tested is in contact with the plane contact part 10, the tensile resistance and the expansion resistance under the condition that the steel strip 100 to be tested is subjected to the friction force of the battery module in actual use are simulated, and the accuracy of a test result is ensured. By arranging the connecting piece 2, the connecting piece 2 is connected with different positions of the supporting part 11, so that the overall performance or the unilateral performance of the steel belt 100 to be tested can be correspondingly tested; when the two connecting pieces 2 are arranged oppositely, the test equipment can apply thrust in opposite directions to the two connecting pieces 2 between the two supporting pieces 1 so as to test the expansion resistance performance of the steel strip 100 to be tested; when the two connectors 2 are arranged oppositely, the testing equipment can apply pulling forces in opposite directions to the two connectors 2 so as to test the tensile resistance of the steel strip 100 to be tested. Through the combination of the different conditions, the tensile resistance and expansion resistance of the steel belt 100 to be tested under different working conditions and different application environments can be tested, the universality of the steel belt tensile test tool is improved, the test process is simplified, the test cost is low, and the test efficiency is high.
Alternatively, the number of the protruding portions 20 provided on the supporting portion 11 is at least three, and at least three protruding portions 20 are provided at intervals along the length direction of the supporting portion 11. By adopting the arrangement mode, the concave part 30 is formed between two adjacent convex parts 20, when the steel belt 100 to be tested is contacted with the convex part 20, a gap exists between the steel belt 100 to be tested and the concave part 30, the steel belt is not directly contacted, the contact area between the steel belt 100 to be tested and the support member 1 can be reduced, and compared with the plane contact part 10, when the steel belt 100 to be tested is contacted with one side of the convex part 20 arranged on the support member 1, the friction force between the steel belt 100 to be tested and the convex part 20 is greatly reduced.
Further, the support portion 11 is a rectangular parallelepiped structure, two opposite side surfaces of the rectangular parallelepiped structure are a first side surface and a second side surface, and the first side surface forms the plane contact portion 10; each supporting piece 1 further comprises a first cylindrical part 12 and a second cylindrical part 13, the first cylindrical parts 12 are of 3/4 cylindrical structures, the two first cylindrical parts 12 are respectively located at two ends of the second side face of the supporting part 11 along the length direction, and gaps of the first cylindrical parts 12 of the 3/4 cylindrical structures can be attached to the second side face of the supporting part 11 and the side face adjacent to the second side face; the second cylindrical portion 13 is a 2/4 cylindrical structure, the second cylindrical portion 13 is located between the two first cylindrical portions 12, the center of the second cylindrical portion 13 coincides with the midpoint of the connecting line of the two first cylindrical portions 12, the plane of the second cylindrical portion 13 of the 2/4 cylindrical structure is attached to the second side surface of the support portion 11, and the cylindrical surfaces of the first cylindrical portion 12 and the second cylindrical portion 13 form a protruding portion 20. The supporting piece 1 is simple in structure, convenient to machine and low in manufacturing cost.
In order to prevent the steel strip 100 to be tested from falling off from the support member 1 during the testing process, each first cylindrical portion 12 is provided with a limiting groove, and the steel strip 100 to be tested can be limited in the limiting grooves. Specifically, the cylindrical surface of each first cylindrical portion 12 is convexly provided with two limiting protrusions arranged at intervals along the height direction of the first cylindrical portion, and a limiting groove is formed between the two limiting protrusions.
Further, be provided with first fixed orifices on the connecting piece 2, support piece 1 is last to be provided with a plurality of second fixed orifices 14 along self length direction interval, and mounting 4 can wear to locate in first fixed orifices and second fixed orifices 14 in proper order, realizes the stable connection between connecting piece 2 and the support piece 1. Wherein, the fixing piece 4 is a bolt and nut component.
As shown in fig. 1, the connecting member 2 includes a U-shaped clamping plate 21 and a push-pull portion 22 connected to each other, two U-shaped arms of the U-shaped clamping plate 21 can clamp the supporting member 1 in a vertical direction, and first fixing holes are formed in both the two U-shaped arms. With this arrangement, the stability of the connection between the connecting member 2 and the supporting member 1 can be further ensured. Optionally, the push-pull portion 22 is a cylindrical structure, and an axis of the push-pull portion 22 coincides with a symmetry line of the two U-shaped arms of the U-shaped clamping plate 21, so that when the two U-shaped arms clamp the supporting member 1, and the testing device applies a pulling force or a pushing force to the supporting member 1 through the push-pull portion 22, the supporting member 1 can be prevented from tilting, and the testing result can be prevented from being affected.
It can be understood that, when the anti-expansion performance of the steel strip 100 to be tested needs to be tested, the connecting pieces 2 are arranged oppositely, the testing equipment needs to apply thrust to the connecting pieces 2 between the two supporting pieces 1, and the length of the connecting pieces 2 is designed to be shorter due to space limitation; when two connecting pieces 2 are arranged back to back, because the length of the connecting piece 2 is short, the testing equipment is inconvenient to apply pulling force on the connecting piece 2. In order to solve the problem, the steel strip tension test tool further comprises an auxiliary test assembly 3, the auxiliary test assembly 3 comprises an auxiliary stretching piece 31, when the two connecting pieces 2 are arranged in a back-to-back mode, each connecting piece 2 can be detachably connected with one auxiliary stretching piece 31, and the test equipment can apply tension to the supporting piece 1 through the auxiliary stretching pieces 31. The auxiliary stretching piece 31 is connected with the connecting piece 2, so that the length of the connecting piece 2 is increased, the tensile force is conveniently applied to the connecting piece 2 by the testing equipment, and the universality of the steel strip testing tool is improved.
Further, the auxiliary stretching member 31 is provided with a stretching penetration hole 311. The force application mechanism of the test equipment can penetrate through the stretching through hole 311 to be connected with the auxiliary stretching piece 31, so that the test equipment is convenient and fast to use, and the test efficiency can be improved.
Further, be provided with the internal thread on the connecting piece 2, the one end of supplementary tensile piece 31 is provided with the external screw thread, and supplementary tensile piece 31 threaded connection is in connecting piece 2, connects firmly, and makes things convenient for the dismouting.
When testing the unilateral performance of the steel band 100 to be tested, as shown in fig. 3, the connecting piece 2 needs to be connected to the first cylindrical portion 12, and when the testing equipment applies acting force to the two connecting pieces 2, the two ends of the supporting piece 1 both displace, thereby affecting the testing result of the unilateral performance of the steel band 100 to be tested. In order to solve this problem, the auxiliary test assembly 3 further includes an auxiliary fixture 32, and both ends of the auxiliary fixture 32 can be connected to the two supports 1 through corresponding mounting members, respectively. Through setting up auxiliary fixing piece 32, can utilize auxiliary fixing piece 32 to fix two support piece 1's one end when testing the unilateral performance of the steel band 100 that awaits measuring to install connecting piece 2 in the other end of the support piece 1 that corresponds, at this moment, test equipment can accurately acquire the unilateral performance parameter of the steel band 100 that awaits measuring when exerting the effort to connecting piece 2.
Optionally, the mounting part is a bolt and nut assembly, bolts are fixed to both ends of the auxiliary fixing part 32, and the bolts pass through the second fixing holes 14 of the support part 1 and then are fixed through nuts, connected and fastened, and the mounting and dismounting are convenient.
In the embodiment, the supporting member 1, the connecting member 2, the auxiliary stretching member 31 and the auxiliary fixing member 32 are made of carbon steel or stainless steel; the forming process is combined with forging and numerical control machine tool machining, the steel belt tension testing tool can be customized according to the size of the steel belt 100 to be tested, and the forming precision is high.
Optionally, the support member 1 is provided with a lightening hole to meet the requirement of light weight of the steel strip tension test tool, and an operator can carry and transfer the steel strip tension test tool conveniently. In consideration of the processing cost of the lightening holes, the support member 1 may not be provided with the lightening holes, and may be adjusted according to the actual situation, which is not limited in this embodiment.
The following illustrates a testing method of the steel strip testing tool for testing the anti-expansion performance and the anti-tensile performance of the steel strip 100 to be tested:
as shown in fig. 3, the plane contact portions 10 of the two supporting members 1 are arranged oppositely, the steel strip 100 to be tested is in contact with the protruding portion 20, the connecting member 2 is connected to one of the first cylindrical portions 12, the stressed ends of the two connecting members 2 are arranged oppositely, and the two ends of the auxiliary fixing member 32 are connected to the other first cylindrical portion 12 of the two supporting members 1 respectively, at this time, the testing equipment can test the single-side anti-expansion performance of the steel strip 100 to be tested.
As shown in fig. 4, the protruding portions 20 of the two supporting members 1 are arranged oppositely, the steel strip 100 to be tested is in contact with the planar contact portion 10, the connecting member 2 is connected to one of the first cylindrical portions 12, the stressed ends of the two connecting members 2 are arranged oppositely, and two ends of the auxiliary fixing member 32 are connected to the other first cylindrical portion 12 of the two supporting members 1 respectively.
As shown in fig. 5, the plane contact portions 10 of the two supporting members 1 are arranged oppositely, the steel strip 100 to be tested is in contact with the protruding portion 20, the connecting member 2 is connected to the second cylindrical portion 13, and the stress ends of the two connecting members 2 are arranged oppositely, at this time, the test equipment can test the overall anti-expansion performance of the steel strip 100 to be tested.
As shown in fig. 6, the protruding portions 20 of the two supporting members 1 are arranged oppositely, the steel strip 100 to be tested is in contact with the planar contact portion 10, the connecting member 2 is connected to the second cylindrical portion 13, and the stressed ends of the two connecting members 2 are arranged oppositely, at this time, the test equipment can test the overall anti-expansion performance of the steel strip 100 to be tested under the condition that the steel strip is subjected to the friction force of the battery module in actual use.
As shown in fig. 7, the plane contact portions 10 of the two supporting members 1 are disposed oppositely, the steel strip 100 to be tested contacts with the protruding portion 20, the connecting member 2 is connected to the second cylindrical portion 13, the stress ends of the two connecting members 2 are disposed oppositely, each connecting member 2 is connected with an auxiliary stretching member 31 in a threaded manner, and at this time, the test equipment can test the overall tensile resistance of the steel strip 100 to be tested.
As shown in fig. 8, the protruding portions 20 of the two supporting members 1 are disposed oppositely, the steel strip 100 to be tested contacts with the plane contact portion 10, the connecting member 2 is connected to the second cylindrical portion 13, the stressed ends of the two connecting members 2 are disposed oppositely, each connecting member 2 is connected with an auxiliary stretching member 31 in a threaded manner, and at this time, the test equipment can test the overall tensile resistance of the steel strip 100 to be tested under the condition of friction force of the battery module in actual use.
As shown in fig. 9, the plane contact portions 10 of the two supporting members 1 are disposed oppositely, the steel strip 100 to be tested contacts with the protruding portion 20, the connecting member 2 is connected to one of the first cylindrical portions 12, the stressed ends of the two connecting members 2 are disposed oppositely, two ends of the auxiliary fixing member 32 are connected to the other first cylindrical portion 12 of the two supporting members 1 respectively, each connecting member 2 is connected to an auxiliary stretching member 31 in a threaded manner, and at this time, the testing equipment can test the unilateral tensile resistance of the steel strip 100 to be tested.
As shown in fig. 10, the protruding portions 20 of the two supporting members 1 are disposed oppositely, the steel strip 100 to be tested contacts with the planar contact portion 10, the connecting member 2 is connected to one of the first cylindrical portions 12, the stressed ends of the two connecting members 2 are disposed oppositely, two ends of the auxiliary fixing member 32 are connected to the other first cylindrical portion 12 of the two supporting members 1 respectively, each connecting member 2 is connected with an auxiliary stretching member 31 through a screw thread, and at this time, the testing equipment can test the unilateral tensile resistance performance of the steel strip 100 to be tested under the condition of friction force of the battery module in actual use.
In addition, when the steel strip 100 to be measured is wound on the supporting members 1, the convex part 20 of one supporting member 1 can be opposite to the plane contact part 10 of the other supporting member 1, and at the moment, the steel strip 100 to be measured is partially contacted with the convex part 20 and partially contacted with the plane contact part 10, so that the random condition of the steel strip 100 to be measured in the actual use can be simulated.
The present embodiment does not exemplify other testing methods, and specifically, according to actual conditions, the required testing parameters may be obtained through different combinations of winding methods of the steel strip 100 to be tested on the two supporting members 1, connection positions of the connecting members 2 on the supporting members 1, and orientations of the two connecting members 2. Specifically, the steel strip tension test tool provided by this embodiment may be used to obtain 16 test parameters of the steel strip 100 to be tested under two working conditions, where the two working conditions specifically refer to the overall performance and the single-side performance of the steel strip 100 to be tested.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. Steel band tensile test frock, its characterized in that includes:
the two supporting pieces (1) are arranged at intervals and used for winding a steel belt (100) to be detected; each support (1) comprises a support part (11), one side of the support part (11) is provided with a plane contact part (10), and the other side of the support part (11) is provided with a convex part (20);
each support part (1) corresponds to one connecting part (2), and any position on the support part (11) along the length direction of the support part can be detachably connected with the corresponding connecting part (2); the stress ends of the two connecting pieces (2) are oppositely arranged or arranged back to back.
2. The steel strip tension test tool according to claim 1, wherein the number of the protruding portions (20) arranged on the support portion (11) is at least three, and the at least three protruding portions (20) are arranged at intervals along the length direction of the support portion (11).
3. The steel strip tension test tool according to claim 2, wherein the support part (11) is of a cuboid structure, two opposite side surfaces of the cuboid structure are a first side surface and a second side surface respectively, and the first side surface forms the plane contact part (10); each support (1) further comprises:
the first cylindrical parts (12) are of 3/4 cylindrical structures, the two first cylindrical parts (12) are respectively positioned at two ends of the second side surface of the supporting part (11) along the length direction, and the gaps of the first cylindrical parts (12) of the 3/4 cylindrical structures can be attached to the second side surface of the supporting part (11) and the side surface adjacent to the second side surface;
the second cylindrical part (13) is of a 2/4 cylindrical structure, the second cylindrical part (13) is located between the two first cylindrical parts (12), the circle center of the second cylindrical part (13) is overlapped with the middle point of the connecting line of the two first cylindrical parts (12), the plane of the second cylindrical part (13) of the 2/4 cylindrical structure is attached to the second side surface of the supporting part (11), and the cylindrical surfaces of the first cylindrical part (12) and the second cylindrical part (13) form the protruding part (20).
4. The steel strip tension test tool according to claim 3, wherein each first cylindrical portion (12) is provided with a limiting groove, and the steel strip (100) to be tested can be limited in the limiting grooves.
5. The steel strip tension test tool according to claim 4, wherein two limiting protrusions are convexly arranged on the cylindrical surface of each first cylindrical portion (12) at intervals along the height direction of the first cylindrical portion, and a limiting groove is formed between the two limiting protrusions.
6. The steel strip tension test tool according to claim 1, wherein a first fixing hole is formed in the connecting piece (2), a plurality of second fixing holes (14) are formed in the supporting piece (1) at intervals along the length direction of the supporting piece, and the fixing piece (4) can be sequentially arranged in the first fixing hole and the second fixing holes (14) in a penetrating mode.
7. The steel strip tension test tool according to claim 6, wherein the connecting piece (2) comprises a U-shaped clamping plate (21) and a push-pull portion (22) which are connected, two U-shaped arms of the U-shaped clamping plate (21) can clamp the support piece (1) in the vertical direction, and the first fixing holes are formed in the two U-shaped arms.
8. The steel strip tension testing tool according to any one of claims 1 to 7, further comprising an auxiliary testing component (3), wherein the auxiliary testing component (3) comprises:
when the two connecting pieces (2) are arranged oppositely, each connecting piece (2) can be detachably connected with one auxiliary stretching piece (31), and the testing equipment can apply tension to the supporting piece (1) through the auxiliary stretching pieces (31); and/or
And the two ends of the auxiliary fixing part (32) can be respectively connected to the two supporting parts (1) through corresponding mounting parts.
9. The steel strip tension test tool according to claim 8, wherein the auxiliary stretching member (31) is provided with a stretching perforation (311).
10. The steel strip tension test tool according to claim 8, wherein the connecting piece (2) is provided with an internal thread, one end of the auxiliary stretching piece (31) is provided with an external thread, and the auxiliary stretching piece (31) is in threaded connection with the connecting piece (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222706280.0U CN218726064U (en) | 2022-10-13 | 2022-10-13 | Steel band tensile test frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222706280.0U CN218726064U (en) | 2022-10-13 | 2022-10-13 | Steel band tensile test frock |
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| Publication Number | Publication Date |
|---|---|
| CN218726064U true CN218726064U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222706280.0U Active CN218726064U (en) | 2022-10-13 | 2022-10-13 | Steel band tensile test frock |
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| Country | Link |
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| CN (1) | CN218726064U (en) |
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2022
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