High and low temperature testing machine with eccentric structure

Abstract

The utility model discloses a high and low temperature testing machine with an eccentric structure, and the testing machine comprises a rack which is a supporting frame of the testing machine and is at least provided with a test bench and a support, and the support is arranged on the test bench; the environment box is installed above the test bench, and a sample to be tested is arranged in the environment box to complete the test; wherein the support is provided with a supporting column and a cross beam, the sensor assembly is installed on the cross beam, the sensor assembly is eccentrically arranged, the sensor assembly is connected with the clamp through a connecting rod, and a to-be-tested sample is clamped on the clamp; the testing machine adopts a sensor eccentric structure, so that the testing space is effectively saved, the operation difficulty is reduced, and the testing system precision is ensured; the minimization of the system structure is ensured, and the concentricity of the force sensor and the test tool clamp is ensured; the environment box is matched to be of an eccentric structure, a large observation window can be arranged, and the fracture process of the sample can be conveniently observed in real time; a matched water cooling system ensures that the influence of the temperature of the environment box on the sensor is minimized.

Description

Technical Field

[0001] The utility model relates to the field of testing equipment, in particular to a high and low temperature testing machine with an eccentric structure. Background Art

[0002] In the existing market of material testing machines, the vast majority of universal testing machines equipped with environmental chamber systems are designed according to a left-right symmetric structure. The advantage of the left-right symmetric structure design is that it has good versatility for most tests and meets the structural requirements of most conventional tests. However, for the test of ASTM D5528 Type I fracture toughness, since the standard specimen is relatively long and the test starts to tear from one end of the specimen, the long specimen part is deviated from the tensile center line. This results in a large amount of structural space being wasted on the symmetric side of the specimen in the test system; causing the equipment to be too large and the space utilization to be seriously wasted, which has extremely adverse effects on the equipment cost, the temperature control accuracy of the test system, the experimental force value, and the displacement accuracy.

[0003] Therefore, in view of the above defects, it is necessary to improve the existing technology. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome at least one defect of the existing technology and provide a high and low temperature testing machine with an eccentric structure.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high and low temperature testing machine with an eccentric structure, comprising:

[0007] A frame, which is the support frame of the testing machine and has at least a test bench and a bracket, and the bracket is arranged on the test bench;

[0008] An environmental chamber, which is installed above the test bench, and the specimen to be tested is placed in the environmental chamber to complete the test;

[0009] Wherein, the bracket has a pillar and a cross beam, a sensor assembly is installed on the cross beam, the sensor assembly is eccentrically arranged, the sensor assembly is connected to a fixture through a connecting rod, and the specimen to be tested is clamped on the fixture.

[0010] Further, connecting rod holes are arranged on both the upper and lower sides of the environmental chamber, the connecting rod has an upper connecting rod and a lower connecting rod, and the upper connecting rod and the lower connecting rod respectively pass through the connecting rod holes on the upper and lower sides and extend into the environmental chamber to be connected to the fixture.

[0011] Further, the connecting rod holes are eccentrically arranged relative to the center of the environmental chamber.

[0012] Furthermore, the sensor assembly at least includes a sensor and a sensor connection component, and the sensor is mounted on the cross beam through the sensor connection component.

[0013] Furthermore, the sensor is an S-type sensor, and the S-type sensor has upper and lower elastic bodies which are respectively connected to the sensor connection component.

[0014] Furthermore, the sensor assembly at least includes a sensor support plate component located above the cross beam and connected to the upper elastic body of the sensor, and a connecting rod connection component located below the cross beam and connected to the lower elastic body of the sensor.

[0015] Furthermore, the sensor support plate group includes a sensor support plate, a cushion plate located between the sensor support plate and the cross beam, and a first connecting piece for fixing the sensor support plate and the upper elastic body of the sensor.

[0016] Furthermore, the connecting rod connection component at least includes a joint. The joint has a U-shaped groove, the bottom of the groove body of the U-shaped groove fits the lower elastic body of the sensor, the U-shaped groove of the joint and the lower elastic body of the sensor are connected through a second connecting piece, one end of the connecting rod extends into the U-shaped groove of the joint, and the connecting rod and the U-shaped groove of the joint are connected through a third connecting piece.

[0017] Furthermore, a water cooling system is connected to the connecting rod, and the water cooling system is installed on the connecting rod between the sensor and the environmental chamber.

[0018] Furthermore, the water cooling system has a water cooling nozzle. The water cooling nozzle is connected to a drain pipe to form a channel for cooling water, and the heat is taken away by the cooling water before being transmitted to the sensor.

[0019] Based on the above high and low temperature test machine with an eccentric structure, the following beneficial effects are achieved:

[0020] (1) The test machine in this solution adopts a sensor eccentric structure, that is, a sufficiently small main machine is used, and the sensor is placed eccentrically, effectively saving the test space, reducing the operation difficulty, and ensuring the accuracy of the test system;

[0021] (2) The eccentric structure in this solution can ensure the minimization of the system structure, and at the same time ensure the concentricity of the force sensor and the test tooling fixture;

[0022] (3) The sensor eccentric structure in this solution makes the environmental chamber supporting an eccentric structure, and a larger observation window can be set, which is convenient for real-time observation of the fracture process of the specimen;

[0023] (4) This solution is equipped with a water cooling system to minimize the influence of the temperature of the environmental chamber on the sensor;

[0024] (5) The connecting rod used in this solution can be designed to match different tooling, which also greatly enhances the versatility of the system. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the test machine in this embodiment;

[0026] Figure 2 is a schematic structural diagram of the test machine except for the environmental chamber;

[0027] Figure 3 is a schematic structural diagram of the fixture;

[0028] Figure 4 is a schematic structural diagram of the environmental chamber;

[0029] Figure 5 is a schematic structural diagram of the sensor assembly;

[0030] In the figure:

[0031] 1 - Test machine;

[0032] 10 - Frame, 100 - Bracket, 1000 - Pillar, 1001 - Cross beam, 101 - Test bench;

[0033] 11 - Environmental chamber, 111 - Observation window, 112 - Connecting rod hole;

[0034] 12 - Sensor assembly, 120 - Sensor, 1200 - Upper elastic body, 1201 - Lower elastic body, 121 - Sensor support plate, 122 - Pad, 123 - First connecting piece, 124 - Joint, 1240 - U - shaped groove, 125 - Second connecting piece, 126 - Third connecting piece;

[0035] 13 - Fixture, 130 - Upper fixture, 1300 - Horizontal part, 1301 - Vertical part, 131 - Lower fixture;

[0036] 14 - Water - cooling nozzle;

[0037] 15 - Connecting rod, 150 - Upper connecting rod, 151 - Lower connecting rod;

[0038] 2 - Specimen to be tested. Detailed Implementation Manner

[0039] The following further elaborates on the present utility model in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0040] In the description of the present utility model, unless otherwise clearly specified and defined, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0042] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0043] A high and low temperature test machine 1 with an eccentric structure in this embodiment includes:

[0044] A frame 10, which is the support frame of the test machine 1 and has at least a test bench 101 and a bracket 100, and the bracket 100 is arranged on the test bench 101;

[0045] An environmental chamber 11, which is installed above the test bench 101, and the specimen 2 to be tested is arranged in the environmental chamber 11 to complete the test;

[0046] Among them, the bracket 100 has a pillar 1000 and a cross beam 1001, a sensor assembly 12 is installed on the cross beam 1001, the sensor assembly 12 is eccentrically arranged, the sensor assembly 12 is connected to a fixture 13 through a connecting rod 15, and the specimen 2 to be tested is clamped on the fixture 13.

[0047] Link holes 112 are provided on both the upper and lower sides of the environmental chamber 11. The connecting rod 15 has an upper connecting rod 150 and a lower connecting rod 151. The upper connecting rod 150 and the lower connecting rod 151 respectively pass through the link holes 112 on the upper and lower sides and extend into the environmental chamber 11 to be connected to the fixture 13.

[0048] Combined with the attached drawings Figures 1-5 Specifically described as follows

[0049] As Figures 1-2 shown, the frame 10 of this solution adopts the existing test machine 1 frame, which has a test bench 101 and a bracket 100. The test bench 101 is installed below, and a power mechanism (not shown in the attached drawings) is arranged inside the test bench 101 to provide the force application power for the test machine 1. The bracket 100 is supported above the test bench 101 and is of a frame structure. More specifically, it includes two vertically arranged columns 1000 and a cross beam 1001 that is horizontally arranged between the two columns 1000 and connected to the two columns 1000. The cross beam 1001 is connected to the power mechanism and can move up and down along the two columns 1000 through the control of the power mechanism.

[0050] A test structure for clamping and testing the sample to be tested 2 is arranged on the frame. Specifically, the test structure includes a fixture 13 for clamping the sample to be tested 2, an environmental chamber 11 for realizing high and low temperature environments, and a sensor assembly 12 for recording test data after applying force to the sample to be tested 2.

[0051] Among them, the fixture 13 adopts the traditional fixture 13 of the test machine 1. In this embodiment, as Figure 3 shown, the fixture 13 of the test machine 1 has an upper fixture 130 and a lower fixture 131. The upper fixture 130 and the lower fixture 131 have the same structure, and both adopt a T-shaped cross-section structure. The horizontal parts 1300 of the T-shaped structures of the upper fixture 130 and the lower fixture 131 are arranged oppositely, and the sample to be tested 2 is clamped between the two oppositely arranged horizontal parts 1300. The vertical parts 1301 of the T-shaped setting are arranged back to back, and the two back-to-back vertical parts 1301 are connected to one end of the connecting rod 15. In other embodiments, the fixture 13 can also adopt other shapes or structures as long as it can effectively clamp the sample to be tested 2.

[0052] The fixture 13 clamps the sample to be tested 2 and is arranged inside the environmental chamber 11. Combined with Figure 4Shown is the test end of the environmental chamber 11. The test end of the environmental chamber 11 is arranged between the bracket 100 and the cross beam 1001. Other structures of the environmental chamber 11, such as the control system, the refrigeration system, the heating system, etc., are the same as those of the existing environmental chamber 11, and will not be elaborated here too much. Only the test end that is different from the structure of the existing environmental chamber 11 will be described. An observation window 111 is provided on the box body structure of the test end of the environmental chamber 11. In this solution, there are connecting rod holes 112 on the upper and lower sides of the test end of the environmental chamber 11. The connecting rods 15 at the upper and lower ends pass through the connecting rod holes 112 and extend into the environmental chamber 11, and are respectively connected to the vertical parts 1301 of the upper fixture 130 and the lower fixture 131. The connecting rod holes 112 on the upper and lower sides are arranged in alignment and are eccentrically arranged relative to the central axis L axis of the frame, so that the fixture 13 clamped by the connecting rod 15 is in an eccentric position. At this time, the observation window 111 of the environmental chamber 11 can be set to a larger area, which is convenient for observing the fracture process of the test sample 2 in real time.

[0053] The connecting rods 15 at both ends are the upper connecting rod 150 and the lower connecting rod 151. The two ends of the lower connecting rod 151 are respectively connected to the test bench 101 of the frame and the vertical part 1301 of the lower fixture 131. The two ends of the upper connecting rod 150 are respectively connected to the vertical part 1301 of the upper fixture 130 and the sensor assembly 12.

[0054] Combined Figure 5 As shown, the sensor assembly 12 is installed on the cross beam 1001. The sensor assembly 12 is eccentrically arranged relative to the central axis L axis of the frame and is on the same vertical line as the connecting rod 15. The sensor assembly 12 has at least a sensor 120 and a sensor 120 connection assembly. The sensor 120 is installed on the cross beam 1001 through the sensor 120 connection assembly. The sensor 120 is an S-type sensor 120. The S-type sensor 120 has upper and lower elastic bodies, which are respectively connected to the sensor 120 connection assembly. The sensor assembly 12 has at least a sensor support plate 121 assembly located above the cross beam 1001 and connected to the upper elastic body 1200 of the sensor 120 and a connecting rod 15 connection assembly located below the cross beam 1001 and connected to the lower elastic body 1201 of the sensor 120. The sensor support plate 121 assembly has a sensor support plate 121, a cushion plate 122 located between the sensor support plate 121 and the cross beam 1001, and a first connecting member 123 for fixing the sensor support plate 121 and the upper elastic body 1200 of the sensor 120. The first connecting member 123 can be set as structures such as screws and nuts.

[0055] The connecting rod 15 connecting assembly has at least a joint 124. The joint 124 has a U-shaped groove 1240. The bottom of the groove body of the U-shaped groove 1240 fits against the lower elastomer 1201 of the sensor 120. The U-shaped groove 1240 of the joint 124 and the lower elastomer 1201 of the sensor 120 are connected by a second connecting member 125. As shown in the figure, one end of the upper connecting rod 150 of the connecting rod 15 extends into the U-shaped groove 1240 of the joint 124. The upper connecting rod 150 and the U-shaped groove 1240 of the joint 124 are connected by a third connecting member 126. The second connecting member 125 and the third connecting member 126 can be set as pins.

[0056] A water cooling system is connected to the upper connecting rod 150. The water cooling system is installed on the upper connecting rod 150 between the sensor 120 and the environmental chamber 11. The water cooling system has a water cooling nozzle 14. The water cooling nozzle 14 is connected to a drain pipe (not shown in the drawings), forming a channel for cooling water, and taking away the heat by the cooling water before the heat is transferred to the sensor 120.

[0057] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A high and low temperature testing machine with an eccentric structure, characterized in that: include: A rack, which is a supporting frame of the test machine and has at least a test bench and a bracket, wherein the bracket is arranged on the test bench; An environmental box, the environmental box is installed above the test bench, and the test sample is placed in the environmental box to complete the test; The bracket has a support and a crossbeam, a sensor assembly is mounted on the crossbeam, the sensor assembly is eccentrically arranged, the sensor assembly is connected to the fixture via a connecting rod, and the sample to be tested is clamped on the fixture.

2. The high and low temperature testing machine with an eccentric structure as claimed in claim 1, characterized in that: The environmental box is provided with connecting rod holes on both the upper and lower sides. The connecting rod comprises an upper connecting rod and a lower connecting rod. The upper connecting rod and the lower connecting rod respectively pass through the connecting rod holes on the upper and lower sides and penetrate into the environmental box to be connected with the clamp.

3. The high and low temperature testing machine with an eccentric structure as claimed in claim 2, characterized in that: The connecting rod hole is eccentrically disposed relative to the center of the environmental chamber.

4. The high and low temperature testing machine with an eccentric structure as claimed in claim 1, characterized in that: The sensor assembly at least comprises a sensor and the sensor connecting assembly, and the sensor is installed on the crossbeam through the sensor connecting assembly.

5. The high and low temperature testing machine with an eccentric structure as claimed in claim 4, characterized in that: The sensor is an S-shaped sensor having an upper and a lower elastic body, which are respectively connected to the sensor connecting assembly.

6. The high and low temperature testing machine with an eccentric structure as claimed in claim 5, characterized in that: The sensor assembly at least comprises a sensor support plate assembly located above the cross beam and connected to the upper elastic body of the sensor, and a connecting rod connection assembly located below the cross beam and connected to the lower elastic body of the sensor.

7. The high and low temperature testing machine with an eccentric structure as claimed in claim 6, characterized in that: The sensor support plate group comprises a sensor support plate, a pad located between the sensor support plate and the cross beam, and a first connecting member for fixing the sensor support plate and the elastic body on the sensor.

8. The high and low temperature testing machine with an eccentric structure as claimed in claim 7, characterized in that: The connecting rod connection assembly has at least a joint, and the joint has a U-shaped groove. The bottom of the U-shaped groove fits the lower elastic body of the sensor, and the U-shaped groove of the joint is connected to the lower elastic body of the sensor through a second connecting piece. One end of the connecting rod is inserted into the U-shaped groove of the joint, and the connecting rod and the U-shaped groove of the joint are connected through a third connecting piece.

9. The high and low temperature testing machine with an eccentric structure as claimed in claim 1, characterized in that: The connecting rod is connected with a water cooling system, and the water cooling system is installed on the connecting rod between the sensor and the environmental box.

10. The high and low temperature testing machine with an eccentric structure as claimed in claim 9, characterized in that: The water cooling system has a water cooling nozzle, which is connected to a drain pipe to form a cooling water channel, so that the heat is taken away by the cooling water before being transferred to the sensor.

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