CN216208081U - Fatigue tension and compression test device under high and low temperature environment - Google Patents

Abstract

The utility model discloses a fatigue tension and compression test device in a high-temperature and low-temperature environment, and relates to the technical field of test devices. The utility model comprises an installation component, a beam component, a fixing component, a tension and compression component and a temperature regulation component; the beam assembly is positioned on the mounting assembly and is in sliding fit with the mounting assembly; the fixing component is positioned on the mounting component and is in threaded rotation fit with the mounting component; the tension and compression assembly is positioned at the bottom end of the beam assembly and is in threaded rotation fit with the beam assembly; the temperature adjusting component is positioned on one side of the mounting component and clamped between the mounting component and the temperature adjusting component. According to the utility model, through the sliding fit of the sliding groove at the bottom of the temperature control box and the sliding rail at the top of the support frame, the temperature control box slides to the mounting assembly, the temperature control box is closed, and the U-shaped holes at the two ends of the temperature control box are sealed by the sealing piece, so that the fatigue tension-compression test of the test piece at different temperatures is realized; the test piece to be tested is placed on the fixing plate frame, and the driving machine is started, so that the two sliding plates can slide relatively on the fixing plate frame, and the test piece to be tested is fixed.

Description

A Fatigue Tensile Compression Test Device in High and Low Temperature Environment

technical field

The utility model belongs to the technical field of testing devices, in particular to a fatigue tensile-compression testing device under high and low temperature environments.

Background technique

Electro-hydraulic dynamic fatigue testing machine is a device for testing the dynamic mechanical properties of materials and components; electro-hydraulic dynamic fatigue testing machines are widely used in dynamic mechanical performance testing of materials and components, including Tensile, compression, low-cycle and high-cycle fatigue tests; in addition, the electro-hydraulic dynamic fatigue testing machine is equipped with a high and low temperature box to perform high and low temperature mechanical tests; the development process adopts "unitization, modularization and standardization" development. The concept is designed by absorbing the international advanced electro-hydraulic servo dynamic testing machine technology and combining with the actual use conditions of domestic users.

However, the existing electro-hydraulic dynamic fatigue testing machine is cumbersome to fix the test piece. When testing different test pieces, it is necessary to replace the fixed pieces according to different test pieces to meet different test pieces. The work efficiency is low, and the existing electro-hydraulic dynamic fatigue testing machine is difficult to carry out the fatigue tension and compression test at different temperatures. To this end, we designed a fatigue tensile and compression test device under high and low temperature environment to solve the problems mentioned above.

Utility model content

The purpose of the utility model is to provide a fatigue tension and compression test device under high and low temperature environment, which solves the problem of the existing electro-hydraulic dynamic The fatigue testing machine is cumbersome to fix the test pieces. When testing different test pieces, it is necessary to replace the fixtures according to different test pieces to meet the fixation of different test pieces, and the work efficiency is low. Moreover, the existing electro-hydraulic dynamic fatigue testing machine is difficult to carry out the fatigue tension and compression test at different temperatures.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions:

The utility model relates to a fatigue tension-compression test device under high and low temperature environment, comprising an installation component, a beam component, a fixing component, a tension-compression component and a temperature adjustment component; the beam component is located on the installation component and slidingly fits between the two. ; the fixing component is located on the mounting component and the two are screwed together; the tension and compression component is located at the bottom end of the beam component and the two are screwed together; the temperature adjustment component is located on one side of the mounting component and the two snap between;

The fixing assembly includes a fixing plate frame; the top of the fixing plate frame is symmetrically slidably connected with a sliding plate; a bidirectional screw rod is rotatably connected inside the fixing plate frame; the bidirectional screw rod is threadedly matched with the sliding plate;

A tripod is fixed on one side of the sliding plate; a first turning plate is hingedly matched with the peripheral side of the tripod; a second turning plate is hingedly matched with the first turning plate; An elastic spring is fixed between the second rotating plate and the first rotating plate;

The tension and compression assembly includes a circular plate; the bottom end of the circular plate frame is hingedly fitted with a plurality of hook pressing plates; a telescopic cylinder is fixed inside the circular plate frame; a moving column is fixed at the bottom end of the telescopic cylinder; A plurality of hinge rods are hingedly matched with the peripheral side surface of the movable column; one end of the hinge rods is hingedly matched with one side of the hook pressing plate.

Further, the installation assembly includes a console; two sliding rods are symmetrically fixed on the top of the console; two lifting oil cylinders are symmetrically fixed on the top of the console; a first fixing seat is fixed on the top of the console; the The peripheral side surface of the first fixing seat is symmetrically fixed with two first lug plate clips; the top of the first fixing seat is provided with a first threaded hole.

Further, the beam assembly includes a moving beam; the top of the moving beam is symmetrically provided with two sliding holes; the sliding holes are slidably matched with the sliding rod.

A second fixing seat is fixed at the bottom end of the moving beam; two second lug clips are symmetrically fixed on the peripheral side surface of the second fixing seat; and a second threaded hole is opened at the bottom of the second fixing seat.

Further, a driver is fixed at the bottom of the fixed plate frame; a drive gear is fixed on the output shaft of the driver; two first clamping rods are symmetrically fixed at the bottom of the fixed plate frame; a threaded post; the first clamping rod is clamped with the first lug plate clamping part; the first threaded hole is threadedly engaged with the first threaded post.

A rotating gear is fixed at one end of the bidirectional screw rod; the driving gear is meshed with the rotating gear.

Further, the top end of the circular plate frame is symmetrically fixed with a second clamping rod; the top end of the circular plate frame is fixed with a second threaded column; the second clamping rod is clamped with the second lug plate; The second threaded post is threadedly engaged with the second threaded hole.

Further, the temperature adjustment assembly includes a support frame; the support frame is fixedly connected to one side of the console by fixing bolts; the top of the support frame is slidably fitted with a temperature control box; the two ends of the temperature control box are provided with U-shaped holes ; the U-shaped hole is slidingly matched with the first fixing seat; the U-shaped hole is slidingly matched with the second fixing seat.

The utility model has the following beneficial effects:

1. The utility model utilizes the sliding cooperation between the sliding groove at the bottom of the temperature control box and the sliding rail at the top of the support frame, as well as the sliding cooperation between the U-shaped hole and the first fixing seat and the second fixing seat, so that the temperature control box slides. To the installation components, close the temperature control box, and seal the U-shaped holes at both ends of the temperature control box with seals to realize the fatigue tension and compression test of the specimen at different temperatures.

2. The utility model places the piece to be tested on the fixed plate frame, and starts the driver, so that the two slide plates slide relatively on the fixed plate frame, which satisfies the fixation of different pieces to be tested and avoids the replacement of the fixed piece.

3. The utility model utilizes the movement of the moving column to rotate on one side of the hook pressing plate with the hinge rod, and finally drives the hook pressing plate to expand and expand on the circular plate frame, thereby realizing the fatigue tension and compression test of the test piece.

Of course, any product implementing the present invention does not necessarily need to simultaneously achieve all of the above-mentioned advantages.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of a fatigue tensile-compression test device in a high and low temperature environment.

FIG. 2 is a schematic diagram of the structure of the mounting assembly.

FIG. 3 is an enlarged schematic view of A in FIG. 2 .

FIG. 4 is a schematic structural diagram of a beam assembly.

FIG. 5 is a schematic structural diagram of the fixing assembly.

Figure 6 is a front view of the fixing assembly.

FIG. 7 is a schematic structural diagram of a tension-compression assembly.

FIG. 8 is a schematic structural diagram of a temperature regulating assembly.

In the accompanying drawings, the list of components represented by each number is as follows:

1-Installation components, 101-Console, 102-Slide rod, 103-Lifting cylinder, 104-First fixing seat, 105-First lug clip, 2-Beam assembly, 201-Moving beam, 202-Sliding hole , 203-Second fixed seat, 204-Second lug clip, 3-Fixed component, 301-Fixed plate frame, 302-Slide plate, 303-Two-way screw, 304-Tripod, 305-First turn plate, 306 -Second turning plate, 307-Triangular plate, 308-Elastic spring, 309-Driver, 310-Drive gear, 311-First clamping rod, 312-First threaded post, 313-Rotating gear, 4-Tension and compression assembly , 401-Circular plate frame, 402-Hook pressing plate, 403-Telescopic cylinder, 404-Moving column, 405-Hinged rod, 406-Second clamping rod, 407-Second threaded column, 5-Temperature adjustment component, 501 -Support frame, 502-Temperature control box, 503-U-shaped hole.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-8 , the present utility model is a fatigue tension and compression test device under high and low temperature environment, comprising an installation assembly 1, a beam assembly 2, a fixing assembly 3, a tension and compression assembly 4 and a temperature adjustment assembly 5; the beam assembly 2 It is located on the mounting assembly 1 and slidingly fits between the two; the fixing component 3 is located on the mounting assembly 1 and the two are screwed together; The temperature component 5 is located on one side of the installation component 1 and is clamped between the two;

The fixed assembly 3 includes a fixed plate frame 301; the top of the fixed plate frame 301 is symmetrically slidably connected with a sliding plate 302; the inside of the fixed plate frame 301 is rotatably connected with a bidirectional screw rod 303;

A tripod 304 is fixed on one side of the slide plate 302; a first turning plate 305 is hingedly matched with the side of the tripod 304; An elastic spring 308 is fixed between the rotating plate 306 and the first rotating plate 305;

The tension-compression assembly 4 includes a circular plate frame 401; the bottom end of the circular plate frame 401 is hingedly fitted with a plurality of hook pressing plates 402; a telescopic cylinder 403 is fixed inside the circular plate frame 401; a movable column 404 is fixed at the bottom end of the telescopic cylinder 403; A number of hinge rods 405 are hinged on the side of the moving column 404; one end of the hinge rod 405 is hinged with one side of the hook pressing plate 402; the test piece is placed on the fixed plate frame 301, and the driver 309 is activated to drive the bidirectional screw rod 303 to rotate. The symmetrical two sliding plates 302 slide relative to each other on the fixed plate frame 301 , because the first rotating plate 305 is hinged with the second rotating plate 306 , and one end of the second rotating plate 306 is hinged with the triangular plate 307 , and the elastic spring 308 Next, wait until the two triangular plates 307 in the fixed assembly 3 are in contact with the test piece to be tested, which satisfies the fixation of the test piece and avoids the replacement of the fixed piece. When the test piece is fixed, the two lifting cylinders 103 are activated to drive the beam. The assembly 2 slides on the installation assembly 1, and as the beam assembly 2 slides on the installation assembly 1, the telescopic cylinder 403 is activated to make the moving column 404 move. When the column 404 moves, it rotates with the hinge rod 405 on the hooking plate 402 side, and finally drives the hooking plate 402 to expand and expand on the circular plate frame 401, thus realizing the fatigue tension and compression test of the test piece.

1-8, the installation assembly 1 includes a console 101; two sliding rods 102 are symmetrically fixed on the top of the console 101; two lifting cylinders 103 are symmetrically fixed on the top of the console 101; and a first fixing seat is fixed on the top of the console 101 104; two first lug clips 105 are symmetrically fixed on the peripheral side of the first fixing seat 104; a first threaded hole is opened at the top of the first fixing seat 104; , drive the beam assembly 2 to slide up and down on the installation assembly 1 .

1-4, the beam assembly 2 includes a moving beam 201; the top of the moving beam 201 is symmetrically provided with two sliding holes 202; the sliding holes 202 are slidingly matched with the sliding rod 102;

The bottom end of the moving beam 201 is fixed with a second fixing seat 203; the peripheral side of the second fixing seat 203 is symmetrically fixed with two second lug plate clips 204; the bottom of the second fixing seat 203 is provided with a second threaded hole; The sliding fit between the sliding bars 102 makes the beam assembly 2 slide up and down on the mounting assembly 1 .

1-6, the bottom of the fixed plate frame 301 is fixed with a driver 309; the output shaft of the driver 309 is fixed with a driving gear 310; the bottom of the fixed plate frame 301 is symmetrically fixed with two first clamping rods 311; the bottom of the fixed plate frame 301 The first threaded post 312 is fixed; the first clamping rod 311 is clamped with the first lug clip 105; the first threaded hole is threadedly engaged with the first threaded post 312;

One end of the two-way screw rod 303 is fixed with a rotating gear 313; the driving gear 310 is meshed with the rotating gear 313; The threaded rotation between 312 realizes the connection between the fixed component 3 and the installation component 1, starts the driver 309, drives the drive gear 310 to rotate, and finally drives the symmetrical two sliding plates 302 to slide relatively on the fixed plate frame 301.

1-7, the top of the circular plate frame 401 is symmetrically fixed with a second clamping rod 406; the top of the circular plate frame 401 is fixed with a second threaded post 407; the second clamping rod 406 and the second lug plate 204 is clamped; the second threaded post 407 is threadedly engaged with the second threaded hole; the second clamping rod 406 and the second lug plate clamp 204 are clamped, and pass between the second threaded post 407 and the second threaded hole The threads are rotated and fitted, so that the extrusion assembly 4 is connected to the lower end of the beam assembly 2 .

Please refer to FIGS. 1 and 5 , the temperature adjustment assembly 5 includes a support frame 501; the support frame 501 is fixedly connected to one side of the console 101 by fixing bolts; the top of the support frame 501 is slidably fitted with a temperature control box 502; A U-shaped hole 503 is provided at the end; the U-shaped hole 503 is slidingly matched with the first fixing seat 104; the U-shaped hole 503 is slidingly matched with the second fixing seat 203; Through the sliding fit between the sliding groove at the bottom of the temperature control box 502 and the sliding rail at the top of the bracket 501, and the sliding fit between the U-shaped hole 503 and the first fixing seat 104 and the second fixing seat 203, the temperature control box 502 Slide onto the installation assembly 1, close the temperature control box 502, and seal the U-shaped holes at both ends of the temperature control box 502 with seals, so as to realize the fatigue tension and compression test of the specimen at different temperatures.

The working principle of this embodiment is:

Place the test piece on the fixed plate frame 301, and start the driver 309, so that the two symmetrical sliding plates 302 slide relative to each other on the fixed plate frame 301. One end of the rotating plate 306 is hingedly fitted with the triangular plate 307, and under the action of the elastic spring 308, the two triangular plates 307 in the fixing assembly 3 are in contact with the test piece to be tested, which realizes the fixation of the test piece and avoids the replacement of the fixed piece. , when the test piece is fixed, the two lifting cylinders 103 are activated to drive the beam assembly 2 to slide on the mounting assembly 1, and as the beam assembly 2 slides on the mounting assembly 1, the telescopic cylinder 403 is activated to make the moving column 404 move, and then Because the moving column 404 is hinged with a number of hinge rods 405 on the peripheral side, when the moving column 404 moves, it will rotate with the hinge rod 405 on the side of the hooking plate 402, and finally drive the hooking plate 402 to expand and expand on the circular plate frame 401. The expansion and contraction realizes the fatigue tension and compression test of the test piece. When the high and low temperature fatigue tension and compression test of the test piece is required, the sliding fit between the sliding groove at the bottom of the temperature control box 502 and the sliding rail at the top of the support frame 501 is carried out. , and the sliding fit between the U-shaped hole 503 and the first fixing seat 104 and the second fixing seat 203, so that the temperature control box 502 slides onto the mounting assembly 1, closes the temperature control box 502, and seals the temperature control box 502 The U-shaped holes at both ends are sealed to realize the fatigue tension and compression test of the specimen at different temperatures.

In the description of this specification, description with reference to the terms "one embodiment", "example", "specific example", etc. means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in the present invention. in at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details, nor do they limit the invention to only the described embodiments. Obviously, many modifications and variations are possible in light of the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. A fatigue tension and compression test device in a high and low temperature environment comprises a mounting assembly (1), a beam assembly (2), a fixing assembly (3), a tension and compression assembly (4) and a temperature adjusting assembly (5); the method is characterized in that: the beam assembly (2) is positioned on the mounting assembly (1) and is in sliding fit with the mounting assembly; the fixing component (3) is positioned on the mounting component (1) and is in threaded rotation fit with the mounting component (1); the tension and compression assembly (4) is positioned at the bottom end of the beam assembly (2) and is in threaded rotation fit with the beam assembly; the temperature adjusting component (5) is positioned on one side of the mounting component (1) and is clamped between the mounting component and the temperature adjusting component;

the fixing component (3) comprises a fixing plate frame (301); the tops of the fixed plate frames (301) are symmetrically connected with sliding plates (302) in a sliding manner; a bidirectional screw rod (303) is rotatably connected inside the fixed plate frame (301); the bidirectional screw rod (303) is in threaded rotation fit with the sliding plate (302);

a tripod (304) is fixed on one side of the sliding plate (302); a first rotating plate (305) is hinged and matched with the peripheral side surface of the tripod (304); the first rotating plate (305) is hinged and matched with a second rotating plate (306); one end of the second rotating plate (306) is hinged and matched with a triangular plate (307); an elastic spring (308) is fixed between the second rotating plate (306) and the first rotating plate (305);

the pulling and pressing assembly (4) comprises a circular plate frame (401); the bottom end of the circular plate frame (401) is hinged and matched with a plurality of hook pressing plates (402); a telescopic cylinder (403) is fixed inside the circular plate frame (401); a movable column (404) is fixed at the bottom end of the telescopic cylinder (403); a plurality of hinge rods (405) are hinged and matched on the peripheral side surface of the moving column (404); one end of the hinge rod (405) is in hinge fit with one side of the hook pressing plate (402).

2. The fatigue tension and compression test device in the high and low temperature environment according to claim 1, wherein the mounting assembly (1) comprises a control console (101); two sliding rods (102) are symmetrically fixed at the top of the console (101); two lifting oil cylinders (103) are symmetrically fixed at the top of the control console (101); a first fixed seat (104) is fixed at the top of the console (101); two first ear plate clamping pieces (105) are symmetrically fixed on the peripheral side surface of the first fixed seat (104); the top of the first fixed seat (104) is provided with a first threaded hole.

3. The fatigue tension and compression test device in the high and low temperature environment according to claim 2, wherein the beam assembly (2) comprises a movable beam (201); two sliding holes (202) are symmetrically formed in the top of the movable cross beam (201); the sliding hole (202) is in sliding fit with the sliding rod (102);

a second fixed seat (203) is fixed at the bottom end of the movable cross beam (201); two second ear plate clamping pieces (204) are symmetrically fixed on the peripheral side surface of the second fixed seat (203); and a second threaded hole is formed in the bottom of the second fixed seat (203).

4. The fatigue tension and compression test device under the high and low temperature environment as claimed in claim 3, wherein a driving machine (309) is fixed at the bottom of the fixed plate frame (301); a driving gear (310) is fixed on an output shaft of the driving machine (309); two first clamping connection rods (311) are symmetrically fixed at the bottom of the fixing plate frame (301); a first threaded column (312) is fixed at the bottom of the fixing plate frame (301); the first clamping and connecting rod (311) is clamped and connected with the first ear plate clamping piece (105); the first threaded hole is in threaded rotation fit with the first threaded post (312);

one end of the bidirectional screw rod (303) is fixed with a rotating gear (313); the driving gear (310) is meshed with the rotating gear (313).

5. The fatigue tension and compression test device under the high and low temperature environment as claimed in claim 4, wherein the top end of the circular plate frame (401) is symmetrically fixed with a second clamping rod (406); a second threaded column (407) is fixed at the top end of the circular plate frame (401); the second clamping and connecting rod (406) is clamped with the second ear plate clamping piece (204); the second threaded post (407) is in threaded rotational engagement with the second threaded bore.

6. The fatigue tension and compression test device in the high and low temperature environment as claimed in claim 5, wherein the temperature adjusting component (5) comprises a support frame (501); the support frame (501) is fixedly connected with one side of the console (101) through a fixing bolt; the top of the support frame (501) is in sliding fit with a temperature control box (502); two ends of the temperature control box (502) are provided with U-shaped holes (503); the U-shaped hole (503) is in sliding fit with the first fixed seat (104); the U-shaped hole (503) is in sliding fit with the second fixed seat (203).

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