CN219104542U - Compression creep assembly and compression creep device with same - Google Patents

Abstract

The present application relates to a compression creep assembly and its compression creep device, and relates to the technical field of material performance testing, which includes a first slider and a second slider, and the first slider and the second slider are opposite to each other. A first compression groove and a second compression groove are opened at one end of each, and a first connection block and a second connection block are respectively arranged in the first compression groove and the second compression groove, and the first connection block and the first compression At least one group between the groove and the second connection block and the second compression groove is set as a detachable connection; the first connection block is close to the bottom of the first compression groove and the second connection block is close to the bottom of the second compression groove. The sides are set to match the compression face. The technical solution of the present application converts the force in the tensile direction of the first slider and the second slider into the force in the compression direction of the sample between the first connecting block and the second connecting block pair, so as to achieve The compression test is carried out on the tensile testing machine; and the structure is simple, the system error is small, the device cost is low, and it is easy to operate.

Description

A compression creep component and a compression creep device having the same

technical field

The present application relates to the field of performance testing of materials, in particular to a compression creep component and a compression creep device.

Background technique

At present, as the test methods for durable creep of metal materials become more and more perfect, the requirements for fixtures for durable creep are also getting higher and higher. Most of the existing synchronous extensometers for durable creep tests in China are suitable for uniaxial tensile creep tests.

Both the mechanical permanent creep testing machine and the electronic permanent creep testing machine can only apply force in the tensile direction to the sample, so the sample slider is modified, and the force in the tensile direction is reversed by using the structure of the counter force , so that the sample is compressed, and the compression lasting creep test is carried out.

However, in the prior art, the compression components cannot be well adapted to ordinary tensile testing machines, and the structure is relatively complicated, which is difficult to operate, and too many structures cause large system errors.

Utility model content

The purpose of this application is to provide a compression creep assembly and a compression creep device to solve the problems in the prior art that the compression assembly has a complex structure, cannot be adapted to most common testing machines, is not easy to operate, and has large system errors.

In the first aspect, a compression creep device provided by the present application adopts the following technical solution:

A compression creep component, comprising a first slider and a second slider, the opposite ends of the first slider and the second slider are respectively provided with a first compression groove and a second compression groove, the first compression A first connection block and a second connection block are respectively arranged in the groove and the second compression groove, and at least one group between the first connection block and the first compression groove and the second connection block and the second compression groove is set to be detachable Connection; the side of the first connection block close to the bottom of the first compression groove and the side of the second connection block close to the bottom of the second compression groove are set as matching compression surfaces.

By adopting the above technical scheme, the force in the stretching direction received by the first slider and the second slider is converted into the force in the compression direction of the sample between the first connecting block and the second connecting block pair, realizing the The compression test is carried out on the tensile testing machine; and the structure is simple, the system error is small, the device cost is low, and the operation is easy.

Optionally, the first connection block and the second connection block are arranged in the shape of a regular prism.

By adopting the above technical solution, the compression surface is wide and flat, and can be easily placed in a vertical position relative to the compression direction.

Optionally, the second connection block is detachably connected to the second compression groove, and the groove walls on both sides of the second compression groove are provided with through holes for matching with the second connection block, and the second connection block One end is provided with a limit block.

By adopting the above technical solution, it is convenient to disassemble and assemble the compression assembly.

Optionally, at least one side wall of the second compression groove is provided with an observation hole.

By adopting the above technical solution, it is convenient to observe the sample in compression.

In the second aspect, a compression creep device provided by the present application adopts the following technical solution:

A compression creep device, including a stretching machine and the above-mentioned compression creep assembly; the stretching machine includes an upper pull rod and a lower rod, and the upper pull rod and the lower rod are respectively connected to the first pull head and the second pull head One end of the back is connected; and a detachable link is set between the upper pull rod and the first pull head, and the lower rod and the second pull head; the lower end of the pull rod is connected with a creep pull rod.

By adopting the above technical scheme, the connection between the upper pull rod on the stretching machine and the first pull head of the compression assembly, as well as between the lower rod and the second pull head can be installed before the compression test, and removed after the compression test is completed, so as to facilitate compression The disassembly and assembly of components on the stretching machine improves the scope of application and reduces the difficulty of operation.

Optionally, a measurement assembly is also included, the measurement assembly includes an upper extension plate, a lower extension plate, an adjustment screw and a grating ruler, the upper extension plate and the lower extension plate are respectively connected with the first slider and the second slider, The adjusting screw and the grating ruler are respectively arranged on the upper extension plate and the lower extension plate.

By adopting the above technical scheme, the displacement change between the first slider and the second slider is converted into the displacement change between the upper extension plate and the lower extension plate, and the relative displacement of the adjustment screw is measured by the grating ruler, which has a great impact on the sample. The amount of compression is accurately measured in real time.

Optionally, the upper extension plate, the lower extension plate and the first slider and the second slider are connected to the jaw ring through the jaw seat, and the opposite ends of the first slider and the second slider are set There is a jaw groove, the jaw seat is spliced by two semicircular rings, and the inner wall is provided with a limit protrusion matching with the jaw groove, the outer wall is provided with an external thread, the jaw ring is arranged in a ring shape, and the inner wall An internal thread mating with the external thread is provided.

By adopting the above technical scheme, the jaw seat is snapped into the jaw groove, and the jaw seat is clamped with the first slider and the second slider through the jaw ring, and the jaw seat and the first slider and the second slider are improved. The integrity of the system reduces system errors and improves the overall rigidity.

Optionally, an upper extension seat is arranged on the upper extension plate, and the adjustment screw is arranged on the upper extension seat and connected with an adjustment nut; a lower extension seat is arranged on the lower extension plate, and the grating ruler is set On the lower extension seat.

By adopting the above technical scheme, it is convenient to adjust the positions of the adjustment screw and the grating ruler relative to the upper extension plate and the lower extension plate, so as to adapt to different tensile testing machines.

Optionally, the creep pull rod is provided with a guide rail plate, and the upper extension seat and the lower extension seat are provided with rollers rolling along the guide rail plate.

By adopting the above technical scheme, the guide rail plate supports the upper extension plate and the lower extension plate in the horizontal direction through the rollers, preventing them from shaking in the horizontal direction and affecting the measurement accuracy; at the same time, the rolling of the rollers on the guide rail plate does not affect the upper extension. The movement of the board and the lower extension board in the vertical direction.

Optionally, there are two sets of measuring components, and they are arranged symmetrically. Two spring columns are symmetrically arranged on the upper extension base and the lower extension base. The spring columns on the same side of the two sets of measurement components are connected with An elastic member in compression.

By adopting the above technical solution, the operation stability of the device is improved, thereby improving the accuracy of displacement measurement.

In summary, the present application includes at least one of the following beneficial technical effects:

1. By opening the first compression groove and the second compression groove on the opposite side of the first slider and the second slider, and setting the first connecting block and the second connecting block on the top of the groove, the first slider, the second When the second slider is subjected to the force in the stretching direction and moves back, the first connecting block and the second connecting block move toward each other, compressing the sample between the first connecting block and the second connecting block, so as to realize the The force in the tensile direction of the testing machine is converted into the force in the compression direction, so that the compression test can be performed on the ordinary tensile testing machine;

2. The structure of the compression component of this scheme is simple, the system error is small, and it is easy to operate.

Description of drawings

FIG. 1 is a schematic diagram of the three-dimensional structure of the compression assembly described in Embodiment 1 of the present application;

Fig. 2 is a schematic cross-sectional structure diagram of the compression assembly described in Embodiment 1 of the present application;

Fig. 3 is a schematic diagram of the three-dimensional structure of the compression creep packing described in Embodiment 3 of the present application;

Fig. 4 is a schematic diagram of the front view structure of the compression creep packing described in Embodiment 3 of the present application;

In the figure, 11, the first slider; 12, the second slider; 13, the first compression groove; 14, the second compression groove; 15, the first connection block; 16, the second connection block; 17, the limit block ; 18, observation hole; 19, jaw groove; 21, upper pull rod; 22, lower rod; 23, creep pull rod; 24, guide rail plate; 31, upper extension plate; 32, lower extension plate; 33, adjustment screw; 34, grating ruler; 35, upper extension seat; 36, lower extension seat; 37, roller; 38, spring column; 39, elastic member; 41, jaw seat; 42, jaw ring.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-4.

Example 1

A compression creep assembly, referring to Fig. 1 and Fig. 2, includes a first slider 11 and a second slider 12, and the opposite ends of the first slider 11 and the second slider 12 are respectively provided with first compression grooves 13. The second compression groove 14, the first compression groove 13 and the second compression groove 14 are respectively provided with a first connection block 15 and a second connection block 16, and the first connection block 15 and the first compression groove 13 Set as a fixed connection, the second connection block 16 and the second compression groove 14 are set to be detachably connected, and the groove walls on both sides of the second compression groove 14 are provided with through holes that cooperate with the second connection block 16; One side of the second compression groove 14 is provided with an observation hole 18; one end of the second connection block 16 is provided with a limit block 17; the first connection block 15 and the second connection block 16 are arranged in a regular square column shape The side of the first connection block 15 close to the bottom of the first compression groove 13 and the side of the second connection block 16 close to the bottom of the second compression groove 14 are set as matching compression surfaces.

The implementation principle of the embodiment of the present application is: before the test starts, the first slider 11 is connected to the upper pull rod of the testing machine, the second slider 12 is connected to the lower rod, and the sample is put into the first slider 11. On a connection block 15, slowly raise the pull-down bar of the testing machine, so that the end of the pull-down head extends into the first compression groove 13 of the first pull head 11, insert the second connection block 16 from the through hole, and Put the limit block 17 in place, contact with the outer wall of the second slider 12, turn on the testing machine, and then the sample can be compressed.

Example 2

A compression creep assembly, which differs from the compression creep assembly described in the embodiments in that the first connection block 15 is detachably connected to the first compression groove 13, and the second connection block 16 is connected to the The second compression groove 14 is configured to be detachably connected; both sides of the second compression groove 14 are provided with observation holes 18 .

Example 3

A kind of compression creep device, with reference to Fig. 3 and Fig. 4; Comprising stretching machine and the compression creep assembly described in embodiment 1 or embodiment 2; Assemblies, the upper pull rod 21 and the lower rod 22 are respectively connected to the opposite ends of the first pull head 11 and the second pull head 12; The heads 12 are arranged to be threaded or clamped; the lower end of the pull rod 22 is connected with a creep pull rod 23 .

The measuring assembly comprises an upper extension plate 31, a lower extension plate 32, an adjustment screw 33 and a grating ruler 34,

The upper extension plate 31 and the lower extension plate 32 are connected to the first slider 11 and the second slider 12 through the jaw seat 41 and the jaw ring 42, and the first slider 11 and the second slider 12 are connected to each other. One end of the back is provided with a jaw groove 19, and the jaw seat 41 is formed by splicing two semicircular rings, and the inner wall is provided with a limit protrusion cooperating with the jaw groove 19, and the outer wall is provided with an external thread, and the jaw The ring 42 is arranged in a ring shape, and the inner wall is provided with an internal thread that cooperates with the external thread; the upper extension plate 31 is provided with an upper extension seat 35, and the adjustment screw 33 is arranged on the upper extension seat 35, and is connected with the adjustment nut , and adjust the position of the adjusting screw 33; the lower extension plate 32 is provided with a lower extension seat 36, and the grating ruler 34 is arranged on the lower extension seat 36;

In order to improve the stability of the upper extension board 31 and the lower extension board 32 when they are raised and lowered, so as to improve the measurement accuracy. The inventor set guide rail plate 24 on creep pull rod 23, and set roller 37 on upper extension seat 35 and lower extension seat 36, and roller 37 rolls along guide rail plate 24, moves up and down on extension plate 31 and lower extension plate 32 When it is limited in the horizontal direction.

There are two sets of measuring components in this embodiment, and they are arranged symmetrically. Two spring posts 38 are symmetrically arranged on the upper extension seat 35 and the lower extension seat 36, and the spring posts 38 located on the same side of the two sets of measurement assemblies An elastic member 39 in a compressed state is connected between them.

The implementation principle of the embodiment of the present application is: before the test starts, the compression assembly is first installed on the testing machine, the jaw base 41 is fixedly connected with the first slider 11 and the second slider 12 through the jaw ring 42, and then the upper extension One end of the plate 31 and the lower extension plate 32 is fixedly connected with the jaw seat 41, and the other end is respectively connected with the upper extension seat 35 and the lower extension seat 36, and adjusts the adjustment screw 33 and the grating ruler 34 on the upper extension seat 35 and the lower extension seat 36. Adjust the position of the grating ruler 34 so that the probe of the grating ruler 34 is in contact with the adjustment screw 33; after the adjustment is completed, turn on the testing machine to compress the sample in the compression assembly. When deforming, the deformation is transmitted to the upper extension seat 35 and the lower extension seat 36 through the upper extension plate 31 and the lower extension plate 32, and is transmitted to the grating ruler 34 through the adjustment screw 33, and the probe of the grating ruler 34 changes accordingly. Data processing is performed by a computer to obtain the deformation of the sample.

The embodiments of this specific embodiment are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly, wherein the same components are represented by the same reference numerals. Therefore: all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims (10)

1. A compression creep assembly, characterized by comprising a first slider (11) and a second slider (12), the opposite ends of the first slider (11) and the second slider (12) The first compression groove (13) and the second compression groove (14) are opened respectively, and the first connection block (15) and the second compression groove (14) are respectively arranged in the first compression groove (13) and the second compression groove (14). A connection block (16), at least one group of the first connection block (15) and the first compression groove (13) and the second connection block (16) and the second compression groove (14) are set as detachable connections; The side of the first connection block (15) close to the bottom of the first compression groove (13) and the side of the second connection block (16) close to the bottom of the second compression groove (14) are set as matching compression surfaces. 2. The compression creep assembly according to claim 1, characterized in that, the first connection block (15) and the second connection block (16) are arranged in the shape of a regular square prism. 3. The compression creep assembly according to claim 1, characterized in that, the second connection block (16) and the second compression groove (14) are arranged to be detachably connected, and the second compression groove (14) The groove walls on both sides are provided with through holes matched with the second connecting block (16), and one end of the second connecting block (16) is provided with a limiting block (17). 4. The compression creep assembly according to claim 1, characterized in that at least one side wall of the second compression groove (14) is provided with an observation hole (18). 5. A compression creep device, characterized in that it includes a stretching machine and the compression creep assembly according to any one of claims 1-4; the stretching machine includes an upper pull rod (21) and a lower rod (22) ), the upper pull rod (21) and the lower pull rod (22) are respectively connected to the opposite end of the first pull head (11) and the second pull head (12); and the upper pull rod (21) is connected to the first pull The head (11), the pull-down rod (22) and the second pull-head (12) are set as detachable links; the lower end of the pull-down rod (22) is connected with a creep pull rod (23). 6. A compression creep device according to claim 5, characterized in that it also includes a measuring assembly, the measuring assembly includes an upper extension plate (31), a lower extension plate (32), an adjustment screw (33) and The grating ruler (34), the upper extension plate (31) and the lower extension plate (32) are respectively connected with the first slider (11) and the second slider (12), the adjustment screw (33), the grating ruler (34) are respectively arranged on the upper extension plate (31) and the lower extension plate (32). 7. A compression creep device according to claim 6, characterized in that, the upper extension plate (31), the lower extension plate (32) and the first slider (11), the second slider (12) ) are connected to the jaw ring (42) through the jaw seat (41), and the opposite ends of the first slider (11) and the second slider (12) are provided with jaw grooves (19), the The jaw seat (41) is spliced by two semicircular rings, and the inner wall is provided with a limit protrusion matching with the jaw groove (19), and the outer wall is provided with an external thread, and the jaw ring (42) is set in a ring shape , the inner wall is provided with an internal thread that cooperates with the external thread. 8. A compression creep device according to claim 6, characterized in that, the upper extension plate (31) is provided with an upper extension seat (35), and the adjustment screw (33) is arranged on the upper extension seat (35) and connected with the adjustment nut; the lower extension plate (32) is provided with a lower extension seat (36), and the grating ruler (34) is arranged on the lower extension seat (36). 9. A compression creep device according to claim 8, characterized in that, the creep rod (23) is provided with a rail plate (24), the upper extension seat (35) and the lower extension seat ( 36) is provided with the roller (37) that rolls along guide rail plate (24). 10. A compression creep device according to claim 9, characterized in that there are two sets of the measuring components and they are arranged symmetrically, and the upper extension seat (35) and the lower extension seat (36) are symmetrical Two spring columns (38) are provided, and an elastic member (39) in a compressed state is connected between the spring columns (38) on the same side in the two sets of measuring components.

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