Lifting test furnace

Abstract

The utility model relates to the technical field of material detection, and discloses a lifting test furnace which comprises a rack, a heating assembly, a clamp assembly and a driving assembly, and the heating assembly is connected with the rack and forms a heating channel with at least one open end; the clamp assembly comprises a clamp and a heat preservation and insulation part, the clamp is slidably arranged in the heating channel, and the heat preservation and insulation part is connected with the clamp and used for blocking the open end of the heating channel. The driving assembly comprises an elastic piece and a linear driving piece, and the linear driving piece is connected with the rack, connected with the clamp through the elastic piece and used for driving the clamp to slide into and out of the heating channel through the elastic piece. According to the lifting test furnace, the opening end of the heating channel can be sealed through the heat preservation and insulation piece, and meanwhile, the situation that a gap is formed between the heat preservation and insulation piece and the heating assembly and the heat preservation and insulation piece is damaged in the sealing process can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to material detection technical field, concretely relates to a lift test furnace. BACKGROUND

[0002] Material detection needs to be detected under different external environments, and the performance characteristics of the material are measured through the change of the environment. In particular, whether the characteristics of the material will be distorted in a high-temperature environment.

[0003] Publication No. CN103940228A discloses a high-temperature lifting furnace, which comprises a furnace shell, a furnace chamber, a furnace bottom lifting platform, a temperature measuring thermocouple, a heating element, an air inlet system and an exhaust pipe arranged inside the furnace shell, the furnace chamber is composed of a furnace top and a square furnace body, the bottom and top of the furnace body are open, the furnace top is arranged at the top of the furnace body, the upper end of the furnace bottom lifting platform is connected with a furnace door for closing the inner cavity of the furnace chamber, the furnace shell is provided with the heating element and the temperature measuring thermocouple extending into the inner cavity of the furnace chamber, the lower part of the furnace chamber is provided with the air inlet system, the air inlet system in the furnace chamber is composed of an air inlet pipe and a preheater connected in series on the air inlet pipe, one end of the air inlet pipe is communicated with the inner cavity of the furnace chamber, and the other end of the air inlet pipe penetrates out of the furnace shell and is communicated with the outside; the upper part of the furnace chamber is provided with the exhaust pipe, one end of the exhaust pipe is communicated with the inner cavity of the furnace chamber, and the other end of the exhaust pipe penetrates out of the furnace shell and is communicated with the outside.

[0004] In the above-mentioned high-temperature lifting furnace, a liftable furnace door is arranged below the furnace chamber, the bottom opening of the furnace chamber is closed by the liftable furnace door, in order to realize the tight closure of the bottom opening of the furnace chamber, the furnace door needs to be tightly attached to the furnace chamber, but when the force applied to the furnace door by the lifting mechanism is too large, the furnace door will be damaged, therefore, the furnace door is usually preliminarily attached to the furnace chamber to avoid being squeezed and damaged, but when the furnace door is preliminarily attached to the furnace chamber, there will be a gap between the furnace door and the furnace chamber, which affects the heat preservation effect of the furnace chamber. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the above technical defects, and provides a lifting test furnace, which solves the technical problem that the furnace door cannot be tightly attached to the furnace chamber in the prior art.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a lifting test furnace, which comprises:

[0008] A rack;

[0009] A heating assembly connected to the rack and forming a heating channel with at least one open end;

[0010] A clamp assembly comprising a clamp and a heat preservation and insulation member, the clamp being slidingly arranged in the heating channel, and the heat preservation and insulation member being connected to the clamp and used for plugging the open end of the heating channel.

[0011] The driving assembly comprises an elastic member and a linear driving member, the linear driving member is connected to the frame and connected to the clamp through the elastic member, and is used for driving the clamp to slide into and out of the heating channel through the elastic member.

[0012] In one of the embodiments, the elastic member comprises an end plate, a support part and an elastic part, the end plate is connected to the linear driving member, the support part is sleeved on the end plate along the axial direction of the heating channel, the support part is connected to the clamp, and the elastic part is connected to the end plate and the support part.

[0013] In one of the embodiments, the clamp comprises a support base, a support tube and a ceramic cover, the support base is connected to the support part and penetrates through the heat insulation member, the support tube is connected to the support base, and the ceramic cover is connected to the side of the support tube away from the support base.

[0014] In one of the embodiments, the clamp further comprises two upper electrodes and two lower electrodes, the two upper electrodes are arranged above the ceramic cover and connected to the support base, and the two lower electrodes are connected to the ceramic cover and the support base and protrude from the top surface of the ceramic cover.

[0015] In one of the embodiments, the two upper electrodes are slidably connected to the support base in the direction of approaching and moving away from each other, and the two lower electrodes are slidably connected to the support base along the guide of the heating channel.

[0016] In one of the embodiments, the heat insulation member is provided with two sliding grooves arranged in the direction perpendicular to the axis of the heating channel, the clamp further comprises two ceramic columns, the two ceramic columns are respectively arranged in the two sliding grooves and slidably connected to the support base, and the two upper electrodes are respectively connected to the two ceramic columns.

[0017] In one of the embodiments, the clamp assembly further comprises a support member arranged between the heat insulation member and the support base, and the heat insulation member is connected to the support base through the support member.

[0018] In one of the embodiments, the support base is detachably connected to the support part.

[0019] In one of the embodiments, the support base is formed with a clamping groove, the support part is formed with a clamping block matched with the clamping groove, and the clamping block is matched with the clamping groove.

[0020] In one of the embodiments, the clamping groove gradually decreases in size in the direction approaching the support part, and the clamping groove penetrates through one side of the support base in the direction parallel to the support part.

[0021] Compared with the prior art, the lifting test furnace provided by the utility model, when testing the material to be tested, the material is clamped in the clamp, the clamp and the heat preservation and insulation part are moved by the elastic piece driven by the linear driving piece, so that the clamp drives the material to be tested to extend into the heating channel, until the heat preservation and insulation part abuts against the heating assembly, at this time, the heat preservation and insulation part seals the open end of the heating channel, and the clamp is limited to continue extending into the heating channel, when the linear driving piece continues to drive, the elastic piece is compressed, the elastic piece is compressed and the closing force applied to the heat preservation and insulation part is increased, so that the heat preservation and insulation part is tightly attached to the heating assembly, at the same time, the elastic piece can avoid the linear driving piece directly and rigidly connecting the heat preservation and insulation part, and can play the role of elastic buffering, avoiding damaging the heat preservation and insulation part when the linear driving piece seals the open end of the heating channel. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic view of the lifting test furnace provided by the utility model one embodiment;

[0023] Figure 2 It is the sectional view of the lifting test furnace provided by the utility model one embodiment;

[0024] Figure 3 It is Figure 2 The local enlarged schematic view of A in the figure;

[0025] Figure 4 It is the structure schematic view of the clamp assembly and the driving assembly in the lifting test furnace provided by the utility model one embodiment;

[0026] Figure 5 It is the structure schematic view of the clamp assembly and the driving assembly in the lifting test furnace provided by the utility model one embodiment;

[0027] Figure 6 It is Figure 5 The local enlarged schematic view of B in the figure.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] Rack 1;

[0030] Heating assembly 2; Heating channel 2a;

[0031] Clamp assembly 3; Clamp 31; Bearing platform 311; Clamping groove 311a; Support pipe 312; Ceramic cover 313; Upper electrode 314; Lower electrode 315; Ceramic column 316; Heat preservation and insulation part 32; Support part 33;

[0032] Driving assembly 4; Linear driving piece 41; Elastic piece 42; End plate 421; Support part 422; Elastic part 423; Clamping block 424. DETAILED DESCRIPTION

[0033] In order to make the utility model's purpose, technical scheme and advantage more clearly, the following will be further detailed with the drawings and examples.

[0034] In order to solve the technical problem that the material testing device lacks the function of simulating high-temperature environment, the utility model provides a lifting test furnace, which can simulate high-temperature environment when testing materials.

[0035] It should be noted that the lifting test furnace described in the utility model is used for, but not limited to, testing the electrical properties of materials, etc., in order to facilitate the description, in the utility model, only the application of the lifting test furnace in the electrical property detection of materials is taken as an example for description, and the principle of the application of the lifting test furnace in other types of detection is substantially the same as that in the electrical property detection of materials, which will not be described here.

[0036] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic view of the lifting test furnace provided by an embodiment of the utility model, Figure 2 is a sectional view of the lifting test furnace in an embodiment of the utility model, the lifting test furnace comprises a rack 1, a heating assembly 2, a clamp assembly 3 and a driving assembly 4, the heating assembly 2 is connected with the rack 1 and forms a heating channel 2a with at least one open end; the clamp assembly 3 comprises a clamp 31 and a heat preservation and insulation piece 32, the clamp 31 is slidingly arranged in the heating channel 2a, and the heat preservation and insulation piece 32 is connected with the clamp 31 and used for plugging the open end of the heating channel 2a; the driving assembly 4 comprises a resilient member 42 and a linear driving member 41, the linear driving member 41 is connected with the rack 1 and connected with the clamp 31 through the resilient member 42, and is used for driving the clamp 31 to slide into and out of the heating channel 2a through the resilient member 42.

[0037] Specifically, when testing the material to be tested, the material is clamped in the clamp 31, the linear driving member 41 drives the clamp 31 and the heat preservation and insulation piece 32 to move through the resilient member 42, so that the clamp 31 drives the material to be tested to extend into the heating channel 2a until the heat preservation and insulation piece 32 abuts against the heating assembly 2, at this time, the heat preservation and insulation piece 32 closes the open end of the heating channel 2a and limits the clamp 31 to continue to extend into the heating channel 2a, when the linear driving member 41 continues to drive, the resilient member 42 is compressed, the resilient member 42 is compressed and the closing force applied to the heat preservation and insulation piece 32 is increased, so that the heat preservation and insulation piece 32 closely fits the heating assembly 2, at the same time, the resilient member 42 can avoid the linear driving member 41 directly and rigidly connecting the heat preservation and insulation piece 32, and can play the role of elastic buffering, avoiding the linear driving member 41 damaging the heat preservation and insulation piece 32 when the heat preservation and insulation piece 32 closes the open end of the heating channel 2a.

[0038] Inside the heating component 2, the heating component 2 heats the fixture 31 and the material to be tested in the heating channel 2a, which can simulate a high temperature environment to measure the electrical properties of the material to be tested under high temperature environment. It can measure electrical parameters such as dielectric constant and dielectric loss, impedance spectrum Cole-Cole diagram, electromechanical coupling coefficient Kp.

[0039] In this application, by setting a linear drive 41, the linear drive 41 can drive the fixture 31 and the material to be tested to enter and exit the heating channel 2a through the opening of the heating channel 2a, without the need for manual handling of the material to be tested in the heating furnace; the heat insulation component 32 can prevent the heat in the heating channel 2a from being conducted outward through the end of the heating channel 2a to the lower part of the fixture 31, thus preventing the heat from being conducted outward and causing high temperature damage to the power lines and other circuits inside the fixture 31.

[0040] It should be understood that the heating component 2 can be various types of heating furnaces and furnace chambers, and the heating channel 2a can be open at one end or at both ends.

[0041] It should be understood that the linear drive component 41 can be a cylinder, an electric actuator, or a hydraulic cylinder, etc.

[0042] It should be understood that the elastic element 42 can be a spring, an elastic strip, or an elastic block, etc. Specifically, such as Figure 3 As shown, in one embodiment, the elastic member 42 includes an end plate 421, a support portion 422 and an elastic portion 423. The end plate 421 is connected to the linear drive member 41. The support portion 422 is slidably sleeved on the end plate 421 along the axial direction of the heating channel 2a. The support portion 422 is connected to the clamp 31. The elastic portion 423 connects the end plate 421 and the support portion 422.

[0043] In this embodiment, when the thermal insulation component 32 comes into contact with the heating component 2 and the linear drive component 41 continues to drive, the elastic part 423 is compressed. The elastic part 423 provides elastic force so that the thermal insulation component 32 is in close contact with the heating component 2, and at the same time, it can also avoid hard contact between the thermal insulation component 32 and the end ring heating component 2. By sleeved the support part 422 on the end plate 421, the support part 422 can only slide relative to the end plate 421, so that the support part 422 is not deflected relative to the end plate 421 during the compression of the elastic part 423.

[0044] Among them, the support part 422 can be a sleeve, collar, etc.

[0045] Clamp 31 can be of various types capable of securing devices with test materials, specifically, such as Figure 3As shown in one of the embodiments, the clamp 31 comprises a support base 311 connected to the support part 422, a support tube 312 connected to the support base 311 and penetrating through the heat insulation member 32, and a ceramic cover 313 connected to the support tube 312 away from the support base 311.

[0046] In the embodiment, the ceramic cover 313 is used to support the material to be tested, which can withstand high temperature and support the material to be tested to be tested at high temperature. The support base 311 and the support tube 312 are used to support the ceramic cover 313, and the support tube 312 can be used to extend and retract the ceramic cover 313 into and out of the heating channel 2a.

[0047] In order to test the electrical properties of the material to be tested, as shown in Figure 5 and Figure 6 In one of the embodiments, the clamp 31 further comprises two upper electrodes 314 and two lower electrodes 315. The two upper electrodes 314 are arranged above the ceramic cover 313 and connected to the support base 311. The two lower electrodes 315 are connected to the ceramic cover 313 and the support base 311 and protrude from the top surface of the ceramic cover 313.

[0048] By arranging two upper electrodes 314 and two lower electrodes 315, the electrical signal of the material to be tested at high temperature can be collected and outputted to test the electrical properties of the material to be tested.

[0049] In order to clamp different sizes of materials to be tested, as shown in Figure 5 and Figure 6 In one of the embodiments, the two upper electrodes 314 can be slidably connected to the support base 311 in the direction of approaching and moving away from each other, and the two lower electrodes 315 are slidably connected to the support base 311 along the guide of the heating channel 2a.

[0050] In the embodiment, the two upper electrodes 314 are slidably arranged, and the lower electrode 315 is slidably arranged, so that the two upper electrodes 314 and the two lower electrodes 315 form a clamping area with adjustable size, which can clamp different sizes of materials to be tested.

[0051] It should be understood that the upper electrode 314 and the lower electrode 315 can be fixed to the support base 311 by limiting screw after sliding, or the connection between the upper electrode 314, the lower electrode 315 and the support base 311 can be realized by spring. The spring can drive the two upper electrodes 314 to slide close to each other and drive the lower electrode 315 to elastically fit the material to be tested.

[0052] In order to realize the sliding connection between the upper electrode 314 and the support base 311, as shown in Figure 4 and Figure 5As shown in one of the embodiments, the heat insulation member 32 is provided with two sliding grooves arranged along the direction perpendicular to the axis of the heating channel 2a, the clamp 31 further comprises two ceramic columns 316, which are respectively arranged in the two sliding grooves and are slidably connected to the support platform 311, and the two upper electrodes 314 are respectively connected to the two ceramic columns 316.

[0053] By arranging the ceramic columns 316, the ceramic columns 316 achieve the sliding connection between the upper electrodes 314 and the support platform 311, and at the same time, the ceramic columns 316 are resistant to high temperature and can stably support the upper electrodes 314 in a high-temperature environment. Since the ceramic columns 316 are slidably connected to the support platform 311 and the upper electrodes 314 and need to pass through the heat insulation member 32, in this embodiment, the sliding grooves are arranged on the heat insulation member 32, so that the ceramic columns 316 can pass through the heat insulation member 32 through the sliding grooves, thereby avoiding the heat insulation member 32 from hindering the sliding of the ceramic columns 316.

[0054] Since the heat insulation member 32 is only sleeved on the ceramic columns 316 and the support tube 312, in order to support the heat insulation member 32, as shown in one of the embodiments, Figure 4 the clamp assembly 3 further comprises a support member 33 arranged between the heat insulation member 32 and the support platform 311, and the heat insulation member 32 is connected to the support platform 311 through the support member 33.

[0055] In this embodiment, by arranging the support member 33, the support platform 311 and the heat insulation member 32 can be spaced apart and connected. The heat insulation member 32 and the support platform 311 are spaced apart, which can avoid the heat from being directly transmitted to the support platform 311 through the heat insulation member 32, thereby protecting the electronic devices in the support platform 311.

[0056] It should be understood that the support member 33 can be a support block, a support column, a support bar, etc., and the number of the support member 33 can be one, two, or more.

[0057] As shown in one of the embodiments, Figure 3 and Figure 4 the support platform 311 and the support portion 422 are detachably connected.

[0058] In this embodiment, the support platform 311 and the driving assembly 4 are detachably connected, and when different electrical properties of the material need to be tested, the corresponding clamp 31 and testing device can be quickly replaced by detaching the support platform 311.

[0059] It should be understood that the support platform 311 and the driving assembly 4 can be detachably connected through bolts, screws, buckles, etc., and specifically, Figure 3 and Figure 5As shown in the drawings, in one of the embodiments, the support 422 is provided with a clamping groove 311a, and the support 422 is provided with a clamping block 424 opposite the clamping groove 311a, and the clamping block 424 is clamped with the clamping groove 311a.

[0060] In the embodiment, the clamping of the clamping block 424 and the clamping groove 311a can realize the detachable connection between the support 422 and the driving assembly 4.

[0061] It should be understood that the clamping between the clamping groove 311a and the clamping block 424 is realized from multiple directions and through multiple structures, and specifically, for example, Figure 5 As shown in the drawings, in one of the embodiments, the clamping groove 311a gradually decreases in size along the direction close to the support 422, and the clamping groove 311a penetrates one side of the support 422 along the direction parallel to the support 422.

[0062] In the embodiment, the support 422 can be slidably sleeved on the clamping block 424 through the opening end of the clamping groove 311a to realize the clamping between the support 422 and the support 422, and in the process of sliding of the support 422, the sliding direction is parallel to the setting direction of the support 422.

[0063] The above is the specific embodiment of the utility model, and does not constitute the limitation to the protection scope of the utility model. Any various other corresponding changes and deformations according to the technical concept of the utility model should be contained in the protection scope of the utility model claim.

Claims

1. An elevated test furnace characterized by, The utility model relates to a lifting test furnace, including: A rack; A heating assembly connected to the rack and forming a heating channel with at least one open end; A clamp assembly including a clamp and a heat insulation member, the clamp being slidingly arranged in the heating channel, and the heat insulation member being connected to the clamp for blocking the open end of the heating channel; A driving assembly including a resilient member and a linear driving member, the linear driving member being connected to the rack and connected to the clamp through the resilient member for driving the clamp to slide into or out of the heating channel through the resilient member.

2. The lifting test furnace according to claim 1, wherein: The resilient member includes an end plate, a support portion and a resilient portion, the end plate being connected to the linear driving member, the support portion being slidingly sleeved on the end plate along the axial direction of the heating channel, the support portion being connected to the clamp, and the resilient portion being connected to the end plate and the support portion.

3. The lifting test furnace according to claim 2, wherein: The clamp includes a support platform, a support tube and a ceramic cover, the support platform being connected to the support portion, the support tube being connected to the support platform and penetrating through the heat insulation member, and the ceramic cover being connected to the side of the support tube away from the support platform.

4. The lifting test furnace according to claim 3, wherein: The clamp further includes two upper electrodes and two lower electrodes, the two upper electrodes being arranged above the ceramic cover and connected to the support platform, and the two lower electrodes being connected to the ceramic cover and the support platform and protruding from the top surface of the ceramic cover.

5. The lifting test furnace according to claim 4, wherein: The two upper electrodes are slidingly connected to the support platform in the direction of approaching or moving away from each other, and the two lower electrodes are slidingly connected to the support platform along the guide of the heating channel.

6. The lifting test furnace according to claim 5, wherein: The heat insulation member is provided with two sliding grooves arranged in the direction perpendicular to the axis of the heating channel, the clamp further includes two ceramic columns slidingly arranged in the two sliding grooves and slidingly connected to the support platform, and the two upper electrodes are respectively connected to the two ceramic columns.

7. The lifting test furnace according to claim 6, wherein: The clamp assembly further includes a support member arranged between the heat insulation member and the support platform, and the heat insulation member is connected to the support platform through the support member.

8. The lifting test furnace according to claim 4, wherein: The support platform and the support portion are detachably connected.

9. The lifting test furnace according to claim 8, wherein: The support platform is formed with a clamping groove, the support portion is formed with a clamping block matched with the clamping groove, and the clamping block is matched with the clamping groove.

10. The lifting test furnace according to claim 9, wherein: The clamping groove gradually decreases in size in the direction close to the support portion, and the clamping groove penetrates through one side of the support platform in the direction parallel to the support portion.

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