CN211954464U

CN211954464U - Thermocouple fixing device

Info

Publication number: CN211954464U
Application number: CN202020317546.0U
Authority: CN
Inventors: 杨嘉俊; 覃远刚; 朱金钢; 张琳
Original assignee: Ruyuan Yao Autonomous County Dongguang High Purity New Materials Co ltd
Current assignee: Ruyuan Yao Autonomous County Dongguang High Purity New Materials Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-11-17
Anticipated expiration: 2030-03-13

Abstract

The utility model relates to the technical field of mechanical devices for fixing, in particular to a thermocouple fixing device which is arranged on an ingot casting, wherein the ingot casting is provided with a mounting hole matched with the thermocouple fixing device; the thermocouple fixing device comprises a fixing tray and a clamping assembly, the clamping assembly is connected with the fixing tray, through holes capable of allowing a thermocouple to penetrate through are formed in the fixing tray and the clamping assembly, the clamping assembly stretches into the mounting hole to be mounted, and the end face of the fixing tray is attached to the surface of the cast ingot. The utility model discloses install thermocouple fixing device in the ingot casting, pass through-hole and ingot casting contact with the thermocouple, and the terminal surface of fixed tray just pastes tight contact with the ingot casting surface, and clamping components can press from both sides tight thermocouple to prevent effectively that the thermocouple from rocking about circulating fan's the effect of sweeping down, avoid the thermocouple pine to take off, improve the job stabilization nature of thermocouple.

Description

Thermocouple fixing device

Technical Field

The utility model relates to a fixed mechanical device's for the technical field, more specifically relates to a thermocouple fixing device.

Background

In the high-precision aluminum processing industry, aluminum ingot heat treatment is one of the indispensable processes. The homogenizing furnace is a key device of the heat treatment process of the aluminum ingot, and the temperature uniformity of the aluminum ingot directly influences the product quality in the heat treatment process. The important part for controlling the temperature uniformity of the aluminum ingot in the soaking process is a thermocouple, before soaking, the centers of the end faces of the front end and the rear end of the aluminum ingot are drilled by a drill, and the thermocouple is wrapped by a glass fiber ribbon and then inserted into a hole to monitor the temperature of the aluminum ingot in real time. However, in the soaking process, in order to ensure the temperature uniformity of the aluminum ingot, the aluminum ingot needs to be swept back and forth by using a circulating fan, and the thermocouple is influenced by wind power and easily swings left and right to loosen. The temperature measured after the thermocouple is loosened is the furnace gas temperature, and the aluminum ingot temperature cannot be accurately monitored. If the thermocouple is loosened soon after the aluminum ingot enters the furnace, the aluminum ingot can be taken out of the furnace and the thermocouple can be installed again; however, the aluminum ingot is taken out of the furnace after the feeding time is long, and a thermocouple is installed, so that the product quality is influenced, the heat treatment time is prolonged, and great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a thermocouple fixing device, install the thermocouple in the aluminium ingot casting steadily, can prevent effectively that the thermocouple from rocking about under circulating fan's the effect of sweeping, improve the job stabilization nature of thermocouple.

In order to solve the technical problem, the utility model discloses a technical scheme is:

providing a thermocouple fixing device, and installing the thermocouple fixing device on an ingot, wherein the ingot is provided with an installation hole matched with the thermocouple fixing device; the thermocouple fixing device comprises a fixing tray and a clamping assembly, the clamping assembly is connected with the fixing tray, through holes capable of allowing a thermocouple to penetrate through are formed in the fixing tray and the clamping assembly, the clamping assembly stretches into the mounting hole to be mounted, and the end face of the fixing tray is attached to the surface of the cast ingot.

The utility model discloses a thermocouple fixing device installs thermocouple fixing device in the ingot casting, passes through-hole and ingot casting contact with the thermocouple, and just pastes the close contact with the ingot casting surface with the terminal surface of fixed tray, and clamping component can press from both sides tight thermocouple to prevent effectively that the thermocouple from rocking about under circulating fan's the effect of sweeping, avoid the thermocouple pine to take off, improve the job stabilization nature of thermocouple.

Furthermore, a connecting part is connected between the fixed tray and the clamping component. The provision of the connection portion facilitates the connection of the thermocouple with the mounting hole, but is not intended as a limiting provision.

Furthermore, the connecting portion are of a cylinder structure, the outer diameter of the cylinder structure is equal to the diameter of the mounting hole, and the inner diameter of the cylinder structure is equal to the diameter of the thermocouple. The outer diameter of the cylinder structure may be slightly greater than the diameter of the mounting hole, thereby achieving an interference fit between the connection part and the mounting hole to increase the mounting stability of the thermocouple fixing device.

Further, the mounting hole is provided with an internal thread, and the periphery of the connecting portion is provided with an external thread matched with the internal thread. The connecting part is connected with the mounting hole through threads, so that the mounting stability of the thermocouple fixing device can be improved.

Furthermore, the clamping assembly is of a frustum structure with the cross section outer diameter gradually and uniformly reduced, the cross section outer diameter of one end of the frustum structure is equal to the outer diameter of the connecting portion, and the cross section inner diameter of the other end of the frustum structure is 0.5-1.5 mm smaller than the diameter of the thermocouple. After the thermocouple is inserted into the through hole, the head of the frustum structure slightly expands outwards and clamps the material thermocouple because the end of the clamping component is slightly thinner than the head of the thermocouple.

Furthermore, the clamping assembly comprises a plurality of claw parts which are uniformly arranged in a surrounding mode, and empty grooves are formed between every two adjacent claw parts. The claw part is arranged to facilitate the insertion of the thermocouple into the clamping assembly, and simultaneously, the clamping action of the clamping assembly on the thermocouple is not influenced.

Furthermore, the claws are arranged in three groups, and the three groups of claws uniformly surround to form a frustum structure. The three groups of claws can obtain more stable clamping action on the premise of processing less claws.

Further, the empty groove is a square groove. The square groove is arranged, so that the electric spark machining technology is convenient to process in an equidistant cutting mode, and the processing mode is simple.

Further, the sum of the lengths of the connecting part and the clamping component is 25-30 mm. In order to improve the utilization rate of the aluminum ingot in the next process, the drilling depth on the aluminum ingot during heat treatment should not exceed 30mm, and the thermocouple should be in contact with the aluminum ingot during installation, so the insertion depth of the thermocouple fixing device should be 25 mm-30 mm.

Further, the fixed tray is a disc, and the diameter of the disc is 7 times of the diameter of the thermocouple. The size of the fixed tray can be set to obtain better connection stability while obtaining better installation convenience.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a thermocouple fixing device can install the thermocouple in the aluminium ingot casting steadily, can prevent effectively that the thermocouple from rocking about sweeping the effect of circulating fan, avoids the thermocouple pine to take off, improves the job stabilization nature of thermocouple.

Drawings

FIG. 1 is a schematic structural view I of a thermocouple fixing device;

FIG. 2 is a schematic structural view II of the thermocouple fixing device;

FIG. 3 is a schematic view of the structure of the clamping assembly of the thermocouple fixing device;

in the drawings: 1-fixing a tray; 2-a clamping assembly; 21-a claw part; 22-empty slot; 3-a through hole; 4-a connecting part.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Examples

Fig. 1 to 3 show an embodiment of a thermocouple fixing device according to the present invention, which is mounted on an ingot, the ingot being provided with a mounting hole for cooperating with the thermocouple fixing device; thermocouple fixing device includes fixing tray 1 and clamping component 2, and clamping component 2 is connected with fixing tray 1, and fixing tray 1 and clamping component 2 set up the through-hole 3 that can hold the thermocouple and pass, and clamping component 2 stretches into the installation and the terminal surface and the laminating of ingot casting surface of fixing tray 1 of installation in the mounting hole.

This embodiment is when implementing, installs thermocouple fixing device in the ingot casting, passes through-hole 3 with the thermocouple and contacts with the ingot casting, and just pastes the contact tightly with the ingot casting surface the terminal surface of fixed tray 1, and clamping component 2 can press from both sides tight thermocouple to effectively prevent that the thermocouple from rocking about under circulating fan's the effect of sweeping, avoid the thermocouple pine to take off, improve the job stabilization nature of thermocouple.

In order to avoid the breakage of the thermocouple when the thermocouple is removed again, the end of the through hole 3 is rounded in the present embodiment. However, the rounding is preferred to avoid breaking the thermocouple and is not intended as a limiting provision of the invention.

Wherein, be connected with connecting portion 4 between fixed tray 1 and the clamping component 2, the thermocouple of being convenient for is connected with the mounting hole:

the connection portion 4 of this embodiment may be configured as a cylindrical structure, an outer diameter of the cylindrical structure is equal to a diameter of the mounting hole, and an inner diameter of the cylindrical structure is equal to a diameter of the thermocouple. It should be noted that, the outer diameter of the column structure of the present embodiment may be slightly larger than the diameter of the mounting hole, so as to implement an interference fit between the connection portion 4 and the mounting hole to increase the mounting stability of the thermocouple fixing device.

The 4 peripheries of connecting portion of this embodiment still can set up the external screw thread, is equipped with the internal thread in the mounting hole, internal thread and external screw thread cooperation. Therefore, the connecting part 4 is connected with the mounting hole through threads, the mounting is simple and convenient, and the mounting stability of the thermocouple fixing device can be improved.

As shown in fig. 1 to 3, the clamping assembly 2 is a frustum structure with a cross section of which the outer diameter is gradually and uniformly reduced, the outer diameter of the cross section of one end of the frustum structure is equal to the outer diameter of the connecting part 4, and the inner diameter of the cross section of the other end of the frustum structure is 0.5mm to 1.5mm smaller than the diameter of the thermocouple. The inner diameter of the cross section of one end of the frustum structure is equal to the diameter of the thermocouple, and the inner diameter of the cross section of the other end of the frustum structure is smaller than the diameter of the thermocouple, so that the thermocouple can be conveniently inserted into the through hole 3, and meanwhile, the thermocouple is stably clamped in the through hole 3 under the extrusion action of the clamping assembly 2.

However, since the cross-sectional inner diameter of the other end of the frustum structure is smaller than the diameter of the thermocouple, and a large external force is required to be applied to insert the thermocouple, the clamping assembly 2 of the present embodiment is provided with a plurality of claw portions 21 uniformly arranged around, and empty grooves 22 are opened between the adjacent claw portions 21, so that the thermocouple can be conveniently inserted into the clamping assembly 2, and the thermocouple can be stably clamped in the through hole 3 due to the pressing action of the claw portions 21.

Wherein, too many claw portions 21 cause inconvenience in processing; too small a number of the claw portions 21 may result in failure to clamp the thermocouple. Therefore, the three groups of claws 21 are arranged in the embodiment, and the three groups of claws 21 are uniformly surrounded to form a frustum structure, which not only facilitates the processing, but also can stably clamp the thermocouple in the through hole 3. The empty groove 22 of the present embodiment is preferably a square groove, but it should be noted that this is preferable for facilitating the processing by cutting and simplifying the processing procedure, and is not a restrictive provision.

In order to improve the utilization rate of the aluminum ingot in the next process, the drilling depth on the aluminum ingot during the heat treatment should not exceed 30mm, and the thermocouple should be in contact with the aluminum ingot during the installation, so the sum of the lengths of the connecting part 4 and the clamping assembly 2 of the embodiment is set to be 25mm to 30 mm. It should be noted that the length of the connecting portion 4 and the clamping assembly 2 is not limited, and the length is adjusted adaptively according to different application occasions on the premise that a reasonable drilling depth can be ensured and a reasonable hole is reserved for facilitating the contact between the thermocouple and the aluminum ingot.

In order to facilitate the processing of the fixing tray 1, facilitate the installation of the thermocouple fixing device and ensure the sufficient contact area between the fixing tray 1 and the surface of the aluminum ingot, the fixing tray 1 of the embodiment is a disk, and the diameter of the disk is 7 times of the diameter of the thermocouple. However, the shape and size of the fixing tray 1 are not limited to the restrictive specifications of the present invention, and the fixing tray can be adjusted according to the application scene. In addition, in order to increase the stability of the thermocouple fixing device, the embodiment may be provided with a protrusion at an end of the fixing tray 1 and a groove at an end of the mounting hole, and the protrusion and the groove cooperate to perform positioning and limiting functions when the thermocouple fixing device is mounted.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A thermocouple fixing device is arranged on an ingot, and the ingot is provided with a mounting hole matched with the thermocouple fixing device; the thermocouple fixing device is characterized by comprising a fixing tray (1) and a clamping assembly (2), wherein the clamping assembly (2) is connected with the fixing tray (1), a through hole (3) capable of allowing a thermocouple to pass through is formed in the fixing tray (1) and the clamping assembly (2), and the clamping assembly (2) stretches into the mounting hole to be mounted and the end face of the fixing tray (1) is attached to the surface of an ingot.

2. Thermocouple fixation device according to claim 1, characterised in that a connection (4) is connected between the fixing tray (1) and the clamping assembly (2).

3. Thermocouple fixing device according to claim 2, characterized in that the connection portion (4) is a cylindrical structure having an outer diameter equal to the diameter of the mounting hole and an inner diameter equal to the diameter of the thermocouple.

4. Thermocouple fixing device according to claim 3, characterized in that the mounting hole is provided with an internal thread and the connection portion (4) is provided with an external thread on its periphery for cooperation with the internal thread.

5. The thermocouple fixing device according to claim 2, wherein the clamping assembly (2) is a frustum structure with a cross-section outer diameter gradually and uniformly reduced, the cross-section outer diameter of one end of the frustum structure is equal to the outer diameter of the connecting part (4), and the cross-section inner diameter of the other end of the frustum structure is 0.5 mm-1.5 mm smaller than the diameter of the thermocouple.

6. Thermocouple fixation device according to claim 5, characterised in that the clamping assembly (2) comprises a plurality of jaws (21) arranged evenly around, with empty slots (22) being provided between adjacent jaws (21).

7. Thermocouple fixture according to claim 6, characterised in that the jaws (21) are in three groups, the jaws (21) of three groups being uniformly rounded to form a frustoconical structure.

8. Thermocouple fixation device according to claim 6, characterised in that the empty slot (22) is a square slot.

9. Thermocouple fixation device according to any of claims 2 to 8, characterised in that the sum of the lengths of the connection portion (4) and the clamping assembly (2) is between 25mm and 30 mm.

10. Thermocouple fixation device according to claim 1, characterized in that the fixation tray (1) is a circular disc having a diameter 7 times the diameter of the thermocouple.