Thermal extension test device for crosslinked polyethylene insulating material

Abstract

The utility model relates to the technical field of cable material detection, and discloses a cross-linked polyethylene insulation material thermal extension test device which comprises a heating box, a sealing door is arranged on the surface of the heating box, an observation window is arranged on the surface of the sealing door, a control panel is installed on the top of the heating box, a temperature sensor is installed in the heating box, and the temperature sensor is connected with the control panel. The device comprises a heating box, a mounting mechanism is arranged in the heating box, multiple groups of extension test mechanisms are arranged on the mounting mechanism, the mounting mechanism comprises a mounting rod arranged in the heating box, limiting rods are mounted at two ends of the mounting rod, a locking rod sleeves the surface of each group of limiting rod, a shifting plate is mounted on the surface of each group of locking rod, and the limiting rods are arranged on the shifting plate. The surface of each limiting rod is sleeved with a spring. The cross-linked polyethylene insulation material thermal extension test device solves the problems that when a common cross-linked polyethylene insulation material thermal extension test device is used, only one group of original parts can be tested at the same time, and the efficiency is low.

Description

Technical Field

[0001] The utility model relates to the technical field of cable material detection, in particular to a cross-linked polyethylene insulation material thermal extension test device. Background Art

[0002] Cross-linked polyethylene (XLPE) insulation is a widely used insulating material for power cables, and its performance directly impacts cable quality and service life. The thermal elongation test is a key performance test for XLPE insulation. By applying a certain mechanical stress to the insulation at a specific temperature and measuring its elongation and permanent deformation over a specified time, the thermal resistance and mechanical strength of the insulation are assessed.

[0003] The commonly used cross-linked polyethylene insulation material thermal extension test device can only test a group of original parts at the same time when in use, which is inefficient. Therefore, a cross-linked polyethylene insulation material thermal extension test device is needed to solve the above problem. Utility Model Content

[0004] Technical problems solved

[0005] In view of the shortcomings of the existing technology, the utility model provides a cross-linked polyethylene insulation material thermal extension test device, which solves the problem that the commonly used cross-linked polyethylene insulation material thermal extension test device can only test one group of original parts at a time when in use, resulting in low efficiency.

[0006] (2) Technical solution

[0007] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a cross-linked polyethylene insulation material thermal extension test device comprises a heating box, a sealed door is provided on the surface of the heating box, an observation window is provided on the surface of the sealed door, a control panel is installed on the top of the heating box, a temperature sensor is installed in the heating box, an installation mechanism is provided in the heating box, and multiple sets of extension test mechanisms are provided on the installation mechanism.

[0008] Preferably, the mounting mechanism includes a mounting rod arranged in the heating box, and limiting rods are installed at both ends of the mounting rod. The surface of each group of the limiting rods is sleeved with a locking rod, the surface of each group of the locking rods is installed with a toggle plate, and the surface of each group of the limiting rods is sleeved with a spring.

[0009] Preferably, both ends of the mounting rod are provided with mounting grooves, the limiting rod is installed in the mounting groove, the locking rod is slidably connected to the surface of the limiting rod, one end of the spring is installed at the end of the locking rod, and the other end is installed on the inner wall of the mounting groove.

[0010] Preferably, two groups of card holes adapted to the locking rods are symmetrically provided in the heating box, a limiting block is installed on the top of each group of locking rods, and a limiting groove adapted to the limiting rod is provided on the mounting rod.

[0011] Preferably, the extension test mechanism includes two groups of mounting blocks sleeved on the surface of the mounting rod, the surface of each group of the mounting blocks is threadedly connected with a fastening knob, the bottom of each group of the mounting blocks is installed with a telescopic frame, the surface of each group of the telescopic frames is installed with a scale, each group of the telescopic frames is installed with a pointer, the bottom of each group of the telescopic frames is installed with a hanger, the bottom of the mounting blocks and the telescopic frames are installed with clamping blocks, each group of the clamping blocks is slidably connected with two groups of splints, the surface of each group of the splints is installed with a threaded rod, and the surface of each group of the threaded rods is threaded with a nut.

[0012] Preferably, each group of the clamping blocks is provided with an adjustment slot adapted to the clamping plate, each group of the clamping blocks is provided with a rectangular slot adapted to the threaded rod, and the clamping plate and the clamping blocks are fixed by nuts.

[0013] The beneficial effects of the utility model are:

[0014] , The cross-linked polyethylene insulation material thermal extension test device, according to the needs of use, the corresponding number of mounting blocks are installed together with the telescopic frame on the surface of the mounting rod, and after adjusting the spacing, they are fixed by tightening the knob, and then the nut is loosened, the splint is opened, and then the material sample is placed in the splint, the splint is closed to fix the sample, and finally reinforced with the nut. The hanger is connected to the telescopic frame by a threaded connection. It only needs to be removed and the counterweight block is installed on the hanger. Then, the toggle plate is pinched to drive the locking rod to retract. After placing the mounting rod in the heating box, the locking rod is loosened and the locking rod is driven to be clamped to the inner wall of the heating box under the action of the spring, which is convenient for installation. The temperature of the heating box is controlled by the control panel and the temperature sensor is used for temperature feedback to accurately control the temperature. Finally, the test data of the raw material can be obtained by the scale indicated by the pointer on the scale and the heating temperature and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the heating box of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the mounting rod of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation mechanism structure of the utility model;

[0019] Figure 5This is a schematic diagram of the structure of the extended test mechanism of the utility model;

[0020] Figure 6 For this utility model Figure 5 Enlarged view of point A in the middle.

[0021] In the figure: 1. Heating box; 2. Sealed door; 3. Observation window; 4. Control panel; 5. Temperature sensor; 6. Mounting mechanism; 601. Mounting rod; 602. Limit rod; 603. Locking rod; 604. Toggle plate; 605. Spring; 7. Extension test mechanism; 701. Mounting block; 702. Tightening knob; 703. Telescopic frame; 704. Scale; 705. Pointer; 706. Hanger; 707. Clamping block; 708. Clamping plate; 709. Threaded rod; 710. Nut. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings:

[0024] Depend on Figure 1-5 The cross-linked polyethylene insulation material thermal extension test device is shown, comprising a heating box 1, a sealed door 2 is provided on the surface of the heating box 1, an observation window 3 is provided on the surface of the sealed door 2, a control panel 4 is installed on the top of the heating box 1, a temperature sensor 5 is installed in the heating box 1, and a mounting mechanism 6 is provided in the heating box 1;

[0025] The mounting mechanism 6 includes a mounting rod 601 arranged in the heating box 1, and limiting rods 602 are installed at both ends of the mounting rod 601. The surface of each group of limiting rods 602 is sleeved with a locking rod 603, and the surface of each group of locking rods 603 is installed with a toggle plate 604. The surface of each group of limiting rods 602 is sleeved with a spring 605.

[0026] Both ends of the mounting rod 601 are provided with mounting grooves, the limiting rod 602 is installed in the mounting groove, the locking rod 603 is slidably connected to the surface of the limiting rod 602, one end of the spring 605 is installed at the end of the locking rod 603, and the other end is installed on the inner wall of the mounting groove. Two groups of card holes adapted to the locking rod 603 are symmetrically provided in the heating box 1, and a limiting block is installed on the top of each group of locking rods 603. A limiting groove adapted to the limiting rod 602 is provided on the mounting rod 601.

[0027] By pinching the toggle plate 604 with this structure, the locking rod 603 is retracted. After the installation rod 601 is placed in the heating box 1, the locking rod 603 is released and the locking rod 603 is clamped on the inner wall of the heating box 1 under the action of the spring 605, which facilitates installation.

[0028] Depend on Figure 1-6 It is shown that multiple groups of extension test mechanisms 7 are provided on the mounting mechanism 6, and the extension test mechanism 7 includes two groups of mounting blocks 701 sleeved on the surface of the mounting rod 601, and the surface of each group of mounting blocks 701 is threadedly connected with a fastening knob 702, and the bottom of each group of mounting blocks 701 is installed with a telescopic frame 703, and the surface of each group of telescopic frame 703 is installed with a scale 704, and each group of telescopic frame 703 is installed with a pointer 705, and the bottom of each group of telescopic frame 703 is installed with a hanger 706, and the bottom of the mounting block 701 and the telescopic frame 703 are installed with a clamping block 707, and two groups of splints 708 are slidably connected in each group of clamping blocks 707, and the surface of each group of splints 708 is installed with a threaded rod 709, and the surface of each group of threaded rods 709 is threaded with a nut 710.

[0029] Each assembly clamping block 707 is provided with an adjustment slot adapted to the clamping plate 708 , and each assembly clamping block 707 is provided with a rectangular slot adapted to the threaded rod 709 . The clamping plate 708 and the clamping block 707 are fixed by a nut 710 .

[0030] Through the structure set up, the corresponding number of mounting blocks 701 together with the telescopic frame 703 are mounted on the surface of the mounting rod 601 according to the needs of use. After adjusting the spacing, they are fixed by tightening the knob 702, and then the nut 710 is loosened, the splint 708 is opened, and then the material sample is placed in the splint 708, the splint 708 is closed to fix the sample, and finally reinforced by the nut 710. The hanger 706 is connected to the telescopic frame 703 by a threaded connection. It only needs to be removed and the counterweight block is mounted on the hanger 706. The temperature of the heating box 1 is controlled by the control panel 4 and the temperature sensor 5 is used for temperature feedback to accurately control the temperature. Finally, the test data of the raw material can be obtained by the scale shown by the pointer 705 on the scale 704 and the heating temperature and time.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cross-linked polyethylene insulation material thermal extension test device, comprising a heating box (1), characterized in that: The surface of the heating box (1) is provided with a sealed door (2), the surface of the sealed door (2) is provided with an observation window (3), the top of the heating box (1) is provided with a control panel (4), a temperature sensor (5) is installed in the heating box (1), a mounting mechanism (6) is provided in the heating box (1), and a plurality of extension test mechanisms (7) are provided on the mounting mechanism (6).

2. The cross-linked polyethylene insulation material thermal extension test device according to claim 1, characterized in that: The mounting mechanism (6) comprises a mounting rod (601) arranged in the heating box (1), and limiting rods (602) are installed at both ends of the mounting rod (601), and the surface of each group of the limiting rods (602) is provided with a locking rod (603), and the surface of each group of the locking rods (603) is provided with a toggle plate (604), and the surface of each group of the limiting rods (602) is provided with a spring (605).

3. The cross-linked polyethylene insulation material thermal extension test device according to claim 2, characterized in that: Both ends of the mounting rod (601) are provided with mounting grooves, the limiting rod (602) is mounted in the mounting groove, the locking rod (603) is slidably connected to the surface of the limiting rod (602), one end of the spring (605) is mounted on the end of the locking rod (603), and the other end is mounted on the inner wall of the mounting groove.

4. The cross-linked polyethylene insulation material thermal extension test device according to claim 2, characterized in that: Two groups of locking holes adapted to the locking rods (603) are symmetrically provided in the heating box (1), a limiting block is installed on the top of each group of locking rods (603), and a limiting groove adapted to the limiting rod (602) is provided on the installation rod (601).

5. The cross-linked polyethylene insulation material thermal extension test device according to claim 1, characterized in that: The extension test mechanism (7) comprises two groups of mounting blocks (701) sleeved on the surface of the mounting rod (601), the surface of each group of the mounting blocks (701) is threadedly connected with a tightening knob (702), the bottom of each group of the mounting blocks (701) is installed with a telescopic frame (703), the surface of each group of the telescopic frame (703) is installed with a scale (704), a pointer (705) is installed on each group of the telescopic frame (703), and a hanger (706) is installed on the bottom of each group of the telescopic frame (703), a clamping block (707) is installed on the bottom of the mounting block (701) and the telescopic frame (703), two groups of splints (708) are slidably connected in each group of the clamping blocks (707), a threaded rod (709) is installed on the surface of each group of the splints (708), and a nut (710) is threadedly connected to the surface of each group of the threaded rod (709).

6. The cross-linked polyethylene insulation material thermal extension test device according to claim 5, characterized in that: Each group of the clamping blocks (707) is provided with an adjustment slot adapted to the clamping plate (708), and each group of the clamping blocks (707) is provided with a rectangular slot adapted to the threaded rod (709). The clamping plate (708) and the clamping blocks (707) are fixed by nuts (710).

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