Composite material tension and torque experiment device

Abstract

The invention provides a composite material tension and torque experiment device, and relates to the technical field of composite material torque experiments, the composite material tension and torque experiment device comprises a shaft sleeve with an internal torsion chute, a rod body penetrates through the shaft sleeve, the rod body is equidistantly provided with a plurality of torsion parts matched with the torsion chute to slide, and the torsion parts slide relative to the torsion chute to drive the rod body to rotate. The rod body is connected with a composite material, and the rod body and the shaft sleeve pull the test composite material in two coaxial directions through the tension mechanism. According to the invention, the composite material can be passively twisted while the tensile force is increased, the twisting force can be applied at the same time, the cooperative test between the tensile force and the twisting force can be improved, the interval time between the two forces can be reduced, and the accuracy and reliability of the experiment can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of composite material torque test, in particular to a composite material tension torque test device. Background Art

[0002] Material mechanics is a way to test the performance of materials. When testing new materials, the performance of some materials is known through tensile testing and torque resistance testing. After the existing testing device combines the two tests, the tensile test and the torque test are still independent of each other, that is, the torque is controlled separately and the tension is controlled separately. Therefore, when applying tension to the new material, the torque needs to be adjusted separately for testing. The torque cannot be increased while increasing the tension, which affects the convenience of the experiment. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a composite material tension torque test device to solve the problem that material performance testing cannot be performed by applying torque while applying tension.

[0004] Based on the technical problems existing in the background technology, the present invention proposes a composite material tension and torque test device, including a sleeve with an internal torsion groove, a rod body passing through the sleeve, a plurality of torsion parts that cooperate with the torsion groove to slide are equidistantly installed on the rod body, and the torsion parts slide relative to the torsion groove to drive the rod body to rotate, the rod body is connected with a composite material, and the rod body and the sleeve are pulled in two directions of the coaxial line for testing the composite material through a tension mechanism.

[0005] Preferably, the pulling mechanism comprises a base and a lifting mechanism installed on the base, a connecting piece is fixed to the moving part of the lifting mechanism, and the shaft sleeve and the connecting piece are rotationally connected.

[0006] Preferably, the torsion member comprises a ring body, and the outer side surface of the ring body is provided with two protrusions which slide corresponding to the torsion groove.

[0007] Preferably, the rod body is equidistantly provided with a plurality of through holes penetrating along the diameter of the rod body, the ring body is provided with holes corresponding to the through holes, and the through holes and the holes are correspondingly fixed to the ring body by bolts.

[0008] Preferably, there are at least two groups of torsion members in the torsion slot.

[0009] Preferably, a clamping piece for clamping the composite material is installed at one end of the rod body away from the moving part.

[0010] Preferably, one end of the composite material away from the moving part is connected to a hook member, and a pull rod assembly that can be hung by the hook member is provided on the base.

[0011] Compared with the prior art, the composite material tension and torque test device proposed in the present invention adopts the above technical solution and achieves the following technical effects:

[0012] The present invention can passively twist the composite material while increasing the tension on the composite material, can apply the torsional force at the same time, can improve the coordination test between the tension and the torsional force, can reduce the interval time between applying the two forces, and improve the accuracy and reliability of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the connection between the shaft sleeve and the rod body of the present invention;

[0015] Figure 3 It is a schematic diagram of the interior of the shaft sleeve of the present invention;

[0016] Figure 4 It is a schematic diagram of the rod structure of the present invention.

[0017] In the figure: 11, torsion slide; 1, bushing; 2, rod body; 3, torsion member; 4, composite material; 5, tension mechanism; 51, base; 52, lifting mechanism; 53, moving part; 54, connecting member; 31, ring body; 32, protrusion; 21, through hole; 311, hole; 55, clamping member; 56, hook member; 57, pull rod assembly. DETAILED DESCRIPTION

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0020] Example

[0021] Please refer to Figure 1-Figure 4 The present invention proposes a composite material tension and torque test device, comprising a sleeve 1 with an internal torsion groove 11, a rod body 2 passing through the sleeve 1, a plurality of torsion pieces 3 that slide in cooperation with the torsion groove 11 are equidistantly installed on the rod body 2, the torsion pieces 3 slide relative to the torsion groove 11 to drive the rod body 2 to rotate, the rod body 2 is connected with a composite material 4, the rod body 2 and the sleeve 1 are pulled to test the composite material 4 in two directions of the coaxial line by a tension mechanism 5; in this scheme, during the test, the composite material 4 needs to be connected to one end of the rod body 2, the tension mechanism 5 needs to be connected to the sleeve 1, and also to the composite material 4, the tension mechanism 5 applies tension to one side, so that there is a pulling effect between the rod body 2 and the sleeve 1, at this time, after the tension is applied between the sleeve 1 and the rod body 2, the rod body 2 will be forced to rotate relative to the sleeve 1, thereby driving the composite material 4 to torsion, the fixing points of the tension mechanism 5 and the composite material 4 need not rotate, so that the composite material 4 can be torsion, the above can realize the pulling of the composite material while applying torsion force, which is convenient for testing.

[0022] In a specific embodiment, refer to Figure 1 The tension mechanism 5 includes a base 51 and a lifting mechanism 52 installed on the base 51, a connecting piece 54 is fixed to the moving part 53 of the lifting mechanism 52, and the sleeve 1 and the connecting piece 54 are rotatably connected; in the above scheme, the moving part 53 slides and rises at the side of the lifting mechanism 52, so the tension of the composite material 4 in the present application is longitudinal, and the connecting piece 54 is an inverted U-shaped component, and the two ends of the connecting piece 54 are rotatably connected to the outer side of the sleeve 1; of course, the tension mechanism 5 in the present application can also be replaced by a cylinder.

[0023] In a specific embodiment, refer to Figure 2 , Figure 3 , Figure 4 The torsion piece 3 includes a ring body 31, and the outer side of the ring body 31 is provided with two protrusions 32 corresponding to the sliding of the torsion groove 11; in this scheme, the torsion piece 3 has two parts, one is the ring body 31, and the other is the protrusion 32. The torsion piece 3 needs to be sleeved on the rod body 2 and connected to the rod body 2. The protrusion 32 will slide along the torsion groove 11, and then the ring body 31 can rotate under the action of the protrusion 32. At this time, the ring body 31 can drive the rod body 2 to rotate and cause the composite material to twist.

[0024] In a specific embodiment, refer to Figure 4The rod body 2 is equidistantly provided with a plurality of through holes 21 penetrating along the diameter of the rod body 2, and the ring body 31 is provided with holes 311 corresponding to the through holes 21, and the through holes 21 and the holes 311 are fixed to the ring body 31 by bolts; there are at least two groups of torsion members 3 in the torsion slide 11; in this scheme, the equidistant through holes 21 are for the convenience of connection between the ring body 31 and the rod body 2, and at least two torsion members 3 in the sleeve 1 can make the axis of the rod body 2 coincide with the axis of the sleeve 1 to avoid the possibility of offset, and the internal thread in the sleeve 1 is fixed, so the regular arrangement of the ring body 31 can facilitate the convex body connected to the next ring body 31 to smoothly enter the slide for connection, so that the whole device can run stably.

[0025] In a specific embodiment, refer to Figure 1 A clamping member 55 for clamping the composite material 4 is installed at one end of the rod body 2 away from the moving part 53; in this solution, the rod body 2 is convenient for clamping the composite material 4 by setting the clamping member 55, and it can be fixed by clamping or winding.

[0026] In a specific embodiment, refer to Figure 1 , Figure 2 The composite material 4 is connected to one end away from the moving part 53 with a hook part 56, and a pull rod assembly 57 for the hook part 56 to hang is provided on the base 51; in this scheme, the hook part 56 connected to the composite material 4 can hang heavy objects, which are longitudinally stretched in this application, but it is necessary to ensure that the heavy objects will not rotate to avoid releasing torque and causing loss of torque; the hook in this scheme can be hung with the pull rod assembly 57 on the base 51, which can limit the rotation of the hook part 56 and avoid loss of torque.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite material tension torque test device, characterized in that: The invention comprises a shaft sleeve (1) having an inner torsion groove (11), a rod body (2) passing through the shaft sleeve (1), a plurality of torsion members (3) which are equidistantly mounted on the rod body (2) and slide in cooperation with the torsion groove (11), the torsion members (3) sliding relative to the torsion groove (11) can drive the rod body (2) to rotate, the rod body (2) is connected with a composite material (4), and the rod body (2) and the shaft sleeve (1) pull the composite material (4) in two directions of the same axis through a tension mechanism (5).

2. The composite material tension torque test device according to claim 1, characterized in that: The pulling mechanism (5) comprises a base (51) and a lifting mechanism (52) mounted on the base (51); a connecting piece (54) is fixed to a moving part (53) of the lifting mechanism (52); and the shaft sleeve (1) and the connecting piece (54) are rotationally connected.

3. The composite material tension torque test device according to claim 1, characterized in that: The twisting member (3) comprises a ring body (31), and the outer side surface of the ring body (31) is provided with two protrusions (32) that slide corresponding to the twisting groove (11).

4. The composite material tension torque test device according to claim 3, characterized in that: The rod body (2) is provided with a plurality of through holes (21) which are equidistantly arranged along the diameter of the rod body (2); the ring body (31) is provided with holes (311) corresponding to the through holes (21); the through holes (21) and the holes (311) are correspondingly fixed to the ring body (31) via bolts.

5. The composite material tension torque test device according to claim 1, characterized in that: At least two groups of twisting parts (3) are arranged in the twisting slide groove (11).

6. The composite material tension torque test device according to claim 2, characterized in that: A clamping piece (55) for clamping the composite material (4) is installed at one end of the rod body (2) away from the moving part (53).

7. The composite material tension torque test device according to claim 6, characterized in that: One end of the composite material (4) away from the moving part (53) is connected to a hook member (56), and a pull rod assembly (57) that can be hung by the hook member (56) is provided on the base (51).

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