A hot deformation testing apparatus

Abstract

The utility model discloses a kind of thermal deformation test equipment, belong to thermal deformation test field, comprising: shell;Heater connected in shell;Support detachably connected in shell;Multiple weight clamping components, weight clamping component includes fixture and load, one end of fixture and support connection, fixture is used to clamp sample, and another end of fixture and load are connected by wiring harness;With the detachable connection of support, load is contacted to make wiring harness between fixture and load loose;Measurement component is located in the side of weight clamping component.The technical effect of the utility model is that it is convenient to make the loading time of multiple samples same.

Description

Technical Field

[0001] This utility model relates to heat deformation testing, and more particularly to a heat deformation testing device. Background Technology

[0002] The heat distortion test is a test method used to evaluate the performance of materials, especially the insulation and sheathing materials of wires and cables, under the combined action of high temperature and load.

[0003] When performing thermal deformation tests on multiple samples, the load is usually suspended sequentially on the samples and then heated simultaneously. This can easily lead to different loading times for the samples, and the more samples there are, the greater the difference in loading time, resulting in poor test accuracy. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a heat deformation testing device that facilitates the same loading time for multiple samples.

[0005] Technical solution: A heat deformation testing device, comprising: shell; A heater connected within the housing; A bracket detachably connected to the housing; Multiple load-bearing clamping assemblies, each load-bearing clamping assembly including a clamp and a load, one end of the clamp being connected to the bracket and used to clamp a sample, and the other end of the clamp being connected to the load via a wiring harness; A support plate detachably connected to the bracket, the support plate abutting against the load to loosen the wiring harness between the clamp and the load; A measuring component located on one side of the load-bearing clamping assembly.

[0006] Optionally, it also includes a connecting rod, one end of which is provided with a dovetail tenon, the bracket is provided with a dovetail groove that slides with the dovetail tenon, and the other end of the connecting rod is connected to the bearing plate.

[0007] Optionally, it may also include a plurality of legs connected to the bottom of the support plate, the legs extending away from the center of the support plate.

[0008] Optionally, the measurement component includes: A measuring ruler located outside the housing; A measuring rod passes through the housing, with one end inside the housing and the other end outside the housing, coinciding with the measuring ruler.

[0009] Optional, also includes: A groove is provided in the outer casing, through which the marker passes; A cover plate that is detachably connected to the slide.

[0010] Optionally, an observation window connected to the housing.

[0011] Optionally, it also includes two support plates connected to both sides inside the housing, and the bracket and the support plates are slidably connected.

[0012] Optionally, the clamp includes: A first clamp, one end of which is connected to the bracket, and the other end of which is used to clamp one end of the sample; The second clamp has one end connected to the load via the wiring harness, and the other end of the second clamp is used to hold the other end of the sample.

[0013] Beneficial effects: (1) Clamp the sample with a fixture and connect one end of the fixture to the bracket. Connect the other end of the fixture to the load through a wire harness and ensure that the load and the bearing plate are in contact. This makes it easier for the bearing plate to support the load. The wire harness is in a non-straightened state. At this time, the load does not exert a loading force on the sample. Then, put the bracket, the bearing plate, multiple load clamping components, and multiple samples into the housing at the same time. Then separate the bearing plate and the bracket. Under the action of gravity, the wire harness is in a straightened state. The loads of multiple load clamping components exert a loading force on multiple samples at the same time. This makes it easier to ensure that the loading time of multiple samples is the same, thereby ensuring good test accuracy. (2) During measurement, the pointer is moved in the vertical and horizontal directions so that one end of the pointer corresponds to the sample to be measured and the other end of the pointer corresponds to the measuring ruler. This makes it easier to use one measuring ruler to measure multiple samples, and thus simplifies the thermal deformation test equipment of this scheme. Attached Figure Description

[0014] Figure 1 This is one of the structural diagrams of a heat deformation testing device according to Embodiment 1 of this utility model; Figure 2 This is a second structural diagram of a heat deformation testing device according to Embodiment 1 of this utility model; Figure 3 This is the third structural diagram of a heat deformation testing device according to Embodiment 1 of this utility model; Figure 4 This is a partial view of a heat deformation testing device according to Embodiment 1 of this utility model; In the diagram: 1. Outer shell; 11. Slide groove; 2. Heater; 3. Bracket; 31. Dovetail groove; 4. Load-bearing clamping assembly; 41. Clamp; 411. First clamp; 412. Second clamp; 42. Load; 43. Wiring harness; 51. Bearing plate; 52. Connecting rod; 53. Dovetail tenon; 54. Support leg; 6. Measuring assembly; 61. Measuring ruler; 62. Scale; 7. Cover plate; 8. Support plate; 9. Observation window; 100. Sample. Detailed Implementation

[0015] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are provided for the convenience of describing the technical solution of this utility model and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this utility model.

[0017] Example 1 like Figures 1-4This embodiment provides a heat deformation testing device, including: a housing 1; a heater 2 connected inside the housing 1; a bracket 3 detachably connected inside the housing 1; multiple load-bearing clamping assemblies 4, each load-bearing clamping assembly 4 including a clamp 41 and a load 42, one end of the clamp 41 being connected to the bracket 3 and used to clamp a sample 100, and the other end of the clamp 41 being connected to the load 42 via a wire harness 43; a support plate 51 detachably connected to the bracket 3, the support plate 51 abutting against the load 42 to slack off the wire harness 43 between the clamp 41 and the load 42; and a measuring assembly 6 located on one side of the load-bearing clamping assembly 4.

[0018] Specifically, during the test, firstly, the heater 2 is activated to preheat the temperature inside the outer casing 1 to the temperature required for the heat deformation test. Next, the sample 100 is clamped with the clamp 41, and one end of the clamp 41 is connected to the bracket 3. The other end of the clamp 41 is connected to the load 42 via a wire harness 43, ensuring that the load 42 and the bearing plate 51 are in contact, so that the bearing plate 51 can support the load 42. The wire harness 43 is in a non-stretched state, and at this time, the load 42 does not exert a loading force on the sample 100. Then, the bracket 3, the bearing plate 51, multiple load-bearing clamping components 4, and multiple samples 100 are simultaneously placed into the outer casing 1. The bearing plate 51 and the bracket 3 are then separated. Under the action of gravity, the wire harness 43 is in a stretched state, and the loads 42 of the multiple load-bearing clamping components 4 exert a loading force on multiple samples 100 simultaneously, so that the loading time of multiple samples 100 is the same, thereby ensuring good test accuracy. Finally, the measuring component 6 measures the multiple samples 100. The heater 2 can be of the form of resistance, electromagnetic induction, etc.

[0019] Furthermore, such as Figure 4 It also includes a connecting rod 52, one end of which is provided with a dovetail tenon 53, and the bracket 3 is provided with a dovetail groove 31 that slides with the dovetail tenon 53. The other end of the connecting rod 52 is connected to the bearing plate 51.

[0020] Specifically, the connecting rod 52 is used to connect the bracket 3 and the bearing plate 51. The number of connecting rods 52 is preferably two to ensure connection stability. The dovetail tenon 53 and the dovetail groove 31 cooperate to prevent the bracket 3 and the bearing plate 51 from separating from each other in the vertical direction when moving the bracket 3, the bearing plate 51, the connecting rod 52, the multiple load-bearing clamping components 4, and the multiple samples 100.

[0021] Furthermore, such as Figure 4 It also includes several legs 54 connected to the bottom of the support plate 51, with the legs 54 extending away from the center of the support plate 51.

[0022] Specifically, the support leg 54 is used to support the bearing plate 51. Since the support leg 54 extends away from the center of the bearing plate 51, it makes the support stability of the support leg 54 good.

[0023] Furthermore, such as Figure 3 The measuring component 6 includes: a measuring ruler 61 located outside the housing 1; and a pointer 62 passing through the housing 1, with one end of the pointer 62 located inside the housing 1 and the other end of the pointer 62 located outside the housing 1 and coinciding with the measuring ruler 61.

[0024] Specifically, during measurement, the pointer 62 is moved vertically and horizontally so that one end of the pointer 62 corresponds to the sample 100 to be measured and the other end of the pointer 62 corresponds to the measuring ruler 61. This makes it easier to use one measuring ruler 61 to measure multiple samples 100, thereby simplifying the thermal deformation testing equipment of this scheme.

[0025] Furthermore, such as Figures 2-3 It also includes: a slide 11 provided on the outer casing 1, through which the marker 62 passes; and a cover plate 7 detachably connected to the slide 11.

[0026] Specifically, the slide 11 is used to accommodate the measuring rod 62; when not measuring, the cover plate 7 covers the slide 11 to prevent heat loss from the housing 1. The detachable connection between the cover plate 7 and the housing 1 can be a snap-fit, screw connection, etc.

[0027] Furthermore, such as Figure 1 , and observation window 9 connected to the outer casing 1.

[0028] Specifically, the observation window 9 allows for the measurement and reading of the sample 100 without opening the outer casing 1.

[0029] Furthermore, such as Figures 2-3 It also includes two support plates 8 connected to the two sides of the outer casing 1 respectively, and the bracket 3 and the support plates 8 are slidably connected.

[0030] Specifically, the support plate 8 is used to support the bracket 3, and the two support plates 8 help to ensure good support stability.

[0031] Furthermore, such as Figure 4 The clamp 41 includes: a first clamp 411, one end of which is connected to the bracket 3, and the other end of which is used to clamp one end of the sample 100; and a second clamp 412, one end of which is connected to the load 42 via a wire harness 43, and the other end of which is used to clamp the other end of the sample 100.

[0032] Specifically, the first clamp 411 and the second clamp 412 are both used to clamp the sample 100 and to connect the support 3, the sample 100 and the load 42. The first clamp 411 and the second clamp 412 are preferably spring-type.

[0033] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heat deformation testing device, characterized in that, include: Outer shell (1); A heater (2) connected inside the housing (1); A bracket (3) detachably connected to the housing (1); Multiple load-bearing clamping components (4), each load-bearing clamping component (4) includes a clamp (41) and a load (42). One end of the clamp (41) is connected to the bracket (3). The clamp (41) is used to clamp the sample (100). The other end of the clamp (41) is connected to the load (42) via a wire harness (43). A support plate (51) is detachably connected to the bracket (3), and the support plate (51) abuts against the load (42) so that the wire harness (43) between the clamp (41) and the load (42) is slack. The measuring component (6) is located on one side of the load-bearing clamping assembly (4).

2. The heat deformation testing device according to claim 1, characterized in that, It also includes a connecting rod (52), one end of which is provided with a dovetail tenon (53), the bracket (3) is provided with a dovetail groove (31) that slides with the dovetail tenon (53), and the other end of the connecting rod (52) is connected to the bearing plate (51).

3. The heat deformation testing device according to claim 2, characterized in that, It also includes a plurality of legs (54) connected to the bottom of the support plate (51), the legs (54) extending away from the center of the support plate (51).

4. A heat deformation testing device according to any one of claims 1-3, characterized in that, The measuring component (6) includes: A measuring ruler (61) located outside the outer casing (1); A measuring rod (62) passes through the outer casing (1), with one end of the measuring rod (62) inside the outer casing (1) and the other end of the measuring rod (62) outside the outer casing (1) and coinciding with the measuring ruler (61).

5. The heat deformation testing device according to claim 4, characterized in that, Also includes: A groove (11) is provided in the outer casing (1), through which the marker (62) passes; A cover plate (7) is detachably connected to the slide (11).

6. The heat deformation testing device according to claim 4, characterized in that, An observation window (9) is connected to the outer casing (1).

7. A heat deformation testing device according to any one of claims 1-3, characterized in that, It also includes two support plates (8) respectively connected to both sides inside the outer shell (1), and the bracket (3) and the support plates (8) are slidably connected.

8. A heat deformation testing device according to any one of claims 1-3, characterized in that, The clamp (41) includes: The first clamp (411) has one end connected to the bracket (3) and the other end of the first clamp (411) is used to clamp one end of the sample (100); The second clamp (412) has one end connected to the load (42) via the wire harness (43), and the other end of the second clamp (412) is used to clamp the other end of the sample (100).

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