Molten aluminum temperature measuring tool of holding furnace

Abstract

The utility model relates to the technical field of low-pressure casting, in particular to an aluminum liquid temperature measuring tool of a holding furnace, and aims to solve the problem of unstable product quality caused by poor consistency of an aluminum liquid temperature measuring process in low-pressure casting production. The molten aluminum temperature measuring tool mainly comprises a sleeve, a locking device, an extension part, a connecting lug, a U-shaped support and a fastening bolt, the locking device for fixing a temperature measuring rod is arranged on the upper portion of the right end of the sleeve, the extension part is arranged at the left end of the sleeve relative to the end face, and the fastening bolt penetrates through the connecting lug on the lower portion of the left end of the sleeve to connect the sleeve with the U-shaped support in a fastening mode. After the temperature measuring device is used, the position and the angle of a thermocouple probe at the lower end of the temperature measuring rod in molten aluminum are relatively fixed, the consistency of the temperature measuring process is good, the measured temperature of the molten aluminum is more accurate, the operation is simple, convenient and flexible, and the temperature measuring device is suitable for popularization and application. And the device is economical and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of low-pressure casting, in particular to a temperature measuring tool for aluminum liquid in a heat-insulating furnace. Background Art

[0002] When measuring the temperature of molten aluminum during the low-pressure casting production process, the temperature values ​​of the molten aluminum measured are different when the thermocouple probe is at different positions in the molten aluminum. The consistency of the temperature measurement process is poor, which affects the quality of the castings. The cost of special sets of equipment is high and the working site is limited. Summary of the invention

[0003] The utility model aims to provide a temperature measuring tool for aluminum liquid in a holding furnace. After the tool is used, the position and angle of the thermocouple probe at the lower end of the temperature measuring rod are relatively fixed in the aluminum liquid, the temperature measurement process has good consistency, the measured aluminum liquid temperature is more accurate, the casting quality is stable, the operation is simple and flexible, economical and practical, and space is saved.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A temperature measuring tool for aluminum liquid in a heat preservation furnace, comprising a sleeve 1, a locking device 2, a connecting ear 3, a U-shaped bracket 4, an extension 5, and a fastening bolt 6, wherein the upper right end of the sleeve 1 is provided with a locking device 2 for fixing a temperature measuring rod, the left end of the sleeve 1 is provided with an extension 5 relative to the end face, the fastening bolt 6 passes through the connecting ear 3 at the lower left end of the sleeve 1 to fasten the sleeve 1 and the U-shaped bracket 4 as a whole, when measuring temperature, the outer surface of the extension 5 at the left end of the sleeve 1 contacts the furnace mouth and then continues to move the temperature measuring rod downward until the lower surface of the U-shaped bracket 4 is in contact with the upper surface of the furnace cover, at which time the measured aluminum liquid temperature value is read;

[0006] The diameter of the through hole opened at the center of the sleeve 1 is 1-2 mm larger than the outer diameter of the temperature measuring rod 7, and the position of the temperature measuring rod 7 in the sleeve 1 can be adjusted by the locking device 2;

[0007] A connecting ear 3 is provided at the lower left end of the sleeve 1, and the angle between the temperature measuring rod 7 and the U-shaped bracket 4 can be adjusted by tightening the bolt 6.

[0008] The beneficial effects of the utility model are mainly manifested in:

[0009] After the tool is used, the position and angle of the thermocouple probe at the lower end of the temperature measuring rod in the molten aluminum are relatively fixed, the temperature measurement process is consistent, the measured molten aluminum temperature is more accurate, and the casting quality is stable.

[0010] The tooling is easy and flexible to operate, saves space, and is economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings constituting the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of traditional temperature measurement;

[0014] Figure 3 It is a schematic diagram of the use of the utility model;

[0015] Figure 4 It is a cross-sectional view of the utility model;

[0016] In the figure: 1. sleeve, 2. locking device, 3. connecting ear, 4. U-shaped bracket, 5. extension, 6. fastening bolt, 7. temperature measuring rod, 8. thermocouple. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described completely and clearly below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, but not all of them.

[0018] like Figure 1 to Figure 4 As shown, a temperature measuring tool for aluminum liquid in a holding furnace is provided. First, the bolt 6 is tightened through the connecting ear 3 at the lower part of the left end of the sleeve 1 to fasten the sleeve 1 and the U-shaped bracket 4 as a whole. The temperature measuring rod 7 passes through the through hole of the sleeve 1 and is locked by the locking device 2. The thermocouple probe 8 is interference fit with the lower end of the temperature measuring rod 7. The left end of the sleeve 1 is provided with an extension 5 relative to the end face. When measuring the temperature, the outer surface of the extension 5 of the left end of the sleeve 1 contacts the furnace mouth and then the temperature measuring rod 7 continues to move downward until the lower surface of the U-shaped bracket 4 fits with the upper surface of the furnace cover. At this time, the measured temperature value of the aluminum liquid is read.

[0019] It should be understood that the detailed description of the technical solution of the utility model by means of the preferred embodiment is illustrative rather than restrictive. A person skilled in the art may modify the technical solution described in the embodiment or replace some of the technical features by equivalents based on reading the specification of the utility model, and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model.

Claims

1. A temperature measuring tool for aluminum liquid in a holding furnace, characterized in that: The invention comprises a sleeve (1), a locking device (2), a connecting ear (3), a U-shaped bracket (4), a projection (5), and a fastening bolt (6), wherein the upper right end of the sleeve (1) is provided with a locking device (2) for fixing the temperature measuring rod, the left end of the sleeve (1) is provided with a projection (5) relative to the end surface, and the fastening bolt (6) passes through the connecting ear (3) at the lower left end of the sleeve (1) to fasten the sleeve (1) and the U-shaped bracket (4) into one body.

2. The temperature measuring tool for aluminum liquid in a holding furnace according to claim 1, characterized in that: The diameter of the through hole opened at the center of the sleeve (1) is 1-2 mm larger than the outer diameter of the temperature measuring rod (7), and the position of the temperature measuring rod (7) in the sleeve (1) can be adjusted by the locking device (2).

3. The temperature measuring tool for aluminum liquid in a holding furnace according to claim 1, characterized in that: A connecting ear (3) is provided at the lower left end of the sleeve (1), and the angle between the temperature measuring rod (7) and the U-shaped bracket (4) can be adjusted by tightening the bolt (6).

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