CN217765258U

CN217765258U - Lead pan thermocouple protection device of heat treatment furnace

Info

Publication number: CN217765258U
Application number: CN202221828236.0U
Authority: CN
Inventors: 侯光辉
Original assignee: Hunan Xianggang Metal Material Technology Co ltd
Current assignee: Hunan Xianggang Metal Material Technology Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-11-08
Anticipated expiration: 2032-07-15

Abstract

The utility model discloses a heat treatment furnace lead pan thermocouple protection device, including the lead pan, the one end fixedly connected with fixation clamp of lead pan, the fixation clamp upper surface rotates and is connected with first connecting rod, the one end that the fixation clamp was kept away from to first connecting rod rotates and is connected with the second connecting rod, the one end that first connecting rod was kept away from to the second connecting rod rotates and is connected with solid fixed ring, run through sliding connection in the solid fixed ring and have the protective sheath, fixedly connected with thermocouple in the protective sheath. The utility model discloses a be equipped with the spacing ring at the thermocouple overcoat, the spacing ring overcoat is equipped with nonrust steel pipe, and nonrust steel pipe overcoat is equipped with the graphite pipe, fills high temperature conduction oil between thermocouple and the nonrust steel pipe, makes the thermocouple in the lead pan obtain good protection, increase of service life, reduction use cost.

Description

Lead pan thermocouple protection device of heat treatment furnace

Technical Field

The utility model relates to a thermocouple protection technical field especially relates to a heat treatment furnace lead pan thermocouple protection device.

Background

The thermocouple is a temperature sensing element widely applied in industrial production, and the corresponding temperature value can be read by generating thermoelectric current through the temperature inconsistency of two junctions inside the thermocouple and transmitting the thermoelectric current to an instrument.

However, during the heat treatment of the lead pot, due to the presence of the steel wire in the lead liquid, abnormal wire breakage of the steel wire often occurs to impact the thermocouple, so that the thermocouple is worn and deformed, the thermocouple cannot be used continuously, and the production cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the thermocouple in the lead pan heat treatment is easily impacted by the steel wire contained in the lead liquid to cause damage.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a heat treatment furnace lead pan thermocouple protection device, including the lead pan, the one end fixedly connected with fixation clamp of lead pan, the fixation clamp upper surface rotates and is connected with first connecting rod, the one end that the fixation clamp was kept away from to first connecting rod rotates and is connected with the second connecting rod, the one end that first connecting rod was kept away from to the second connecting rod rotates and is connected with solid fixed ring, run through sliding connection in the solid fixed ring and have the protective sheath, fixedly connected with thermocouple in the protective sheath.

Through the technical scheme, the thermocouple with the protective sleeve can be well fixed in the lead pan, and damage caused by collision with the lead pan is avoided.

The utility model discloses further set up to, the fixation clamp lower surface runs through to rotate and is connected with the threaded rod, the threaded rod is close to the one end fixedly connected with fixed plate of lead pan, the threaded rod is kept away from the one end fixedly connected with rotation hand wheel of fixed plate.

Through the technical scheme, the fixing clamp can be conveniently and quickly fixed on the lead pan, and meanwhile, the fixing clamp is more convenient to disassemble.

The utility model discloses further set up to, the thermocouple includes the terminal box, terminal box bottom end fixedly connected with metal pole, the fixed cover of surface that metal pole is close to terminal box one end is equipped with the nut.

Through the technical scheme, the thermocouple and the protective sleeve can be firmly connected, and relative sliding is avoided.

The utility model discloses further set up to, the protective sheath includes the limiting plate, the last fixed surface of limiting plate is connected with the screwed joint, limiting plate central point puts and runs through the sliding connection metal pole, the metal pole overcoat is equipped with a plurality of spacing rings, and is a plurality of the outer fixed cover of spacing ring is equipped with nonrust steel pipe, the outer fixed cover of nonrust steel pipe is equipped with the graphite pipe.

Through the technical scheme, the protective sleeve has excellent protection on the thermocouple under the condition of good heat conduction performance.

The utility model discloses further set up to, nut and the mutual thread engagement cooperation of screwed joint, the metal pole runs through the sliding connection limiting plate.

The utility model discloses further set up to, the mutual spacing cooperation of protective sheath and solid fixed ring, first connecting rod, second connecting rod and solid fixed ring are made by the steel.

Through above-mentioned technical scheme, can make connecting rod and solid fixed ring tightness improve greatly, avoid high temperature to influence stability.

The utility model discloses further set up to, it has high temperature conduction oil, a plurality of to fill between nonrust steel pipe and the metal pole equal fixedly connected with heat conduction cotton in the spacing ring.

Through the technical scheme, the thermocouple can be prevented from being in friction collision with the stainless steel pipe, and the service life of the thermocouple is prolonged.

The utility model discloses further set up to, the limiting plate is made by the stainless steel, the spacing ring is made by pottery, the graphite pipe outward surface is smooth setting.

The utility model has the advantages as follows:

1. the utility model discloses an install the fixation clamp at the lead pan limit, rotate on the fixation clamp and connect first connecting rod, rotate on the first connecting rod and connect the second connecting rod, the second connecting rod rotates and connects the solid fixed ring, puts into the thermocouple that has the protective sheath, makes the protective sheath obtain good support, avoids colliding with the lead pan, leads to the protective sheath to damage, installs fixed plate, threaded rod and rotation hand wheel on the fixation clamp simultaneously, makes the fixation clamp convenient dismantlement change;

2. the utility model discloses a be equipped with the spacing ring at the thermocouple overcoat, the spacing ring overcoat is equipped with nonrust steel pipe, nonrust steel pipe overcoat is equipped with the graphite pipe, fill high temperature conduction oil between nonrust steel pipe and the thermocouple, spacing intra-annular fixedly connected with heat conduction is cotton, make the thermocouple obtain good protection under the not influenced condition of measurement accuracy, avoid simultaneously rubbing between metal pole and the nonrust steel pipe to lead to the metal pole to damage, it makes the thermocouple obtain good fixed with through the screwed joint connection on nut on the metal pole and the limiting plate simultaneously.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a side view of the protective cover of the present invention;

FIG. 3 is a side sectional view of the protective floor covering of the present invention;

fig. 4 is a structural view of the stop collar of the present invention.

In the figure: 1. a lead pan; 2. a fixing clip; 3. a fixing plate; 4. a threaded rod; 5. rotating a hand wheel; 6. a first link; 7. a second link; 8. a thermocouple; 9. a protective sleeve; 10. a fixing ring; 11. a junction box; 12. a metal rod; 13. a nut; 14. a threaded joint; 15. a limiting plate; 16. a limiting ring; 17. high-temperature heat conducting oil; 18. a graphite tube; 19. a stainless steel tube; 20. and (4) heat conducting cotton.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Please refer to fig. 1 and fig. 2, a heat treatment furnace lead pot thermocouple protection device includes lead pot 1, the one end fixedly connected with fixation clamp 2 of lead pot 1, the upper surface of fixation clamp 2 rotates and is connected with first connecting rod 6, the one end that fixation clamp 2 was kept away from to first connecting rod 6 rotates and is connected with second connecting rod 7, the one end that first connecting rod 6 was kept away from to second connecting rod 7 rotates and is connected with solid fixed ring 10, run through sliding connection in the solid fixed ring 10 and have protective sheath 9, fixedly connected with thermocouple 8 in the

protective sheath

9, 2 lower surfaces of fixation clamp run through to rotate and are connected with threaded rod 4, threaded rod 4 is close to the one end fixedly connected with fixed plate 3 of lead pot 1, threaded rod 4 keeps away from the one end fixedly connected with rotation hand wheel 5 of fixed plate 3, thermocouple 8 includes

terminal box

11, 11 bottom fixedly connected with metal pole 12 of terminal box, the outer fixed surface cover that metal pole 12 is close to terminal box 11 one end is equipped with nut 13.

As shown in fig. 3 and 4, the protective sheath 9 includes a limiting plate 15, the upper surface of the limiting plate 15 is fixedly connected with a threaded joint 14, the central position of the limiting plate 15 runs through a sliding connection metal rod 12, a plurality of limiting rings 16 are sleeved outside the metal rod 12, a stainless steel pipe 19 is sleeved outside the limiting rings 16, a graphite pipe 18 is sleeved outside the stainless steel pipe 19, high-temperature heat conduction oil 17 is filled between the stainless steel pipe 19 and the metal rod 12, and heat conduction cotton 20 is fixedly connected with the inner parts of the limiting rings 16.

The utility model discloses when using, place 1 edge of lead pan with fixation clamp 2, it makes threaded rod 4 move up to rotate hand wheel 5 through the wrench movement, 3 jack-ups of fixed plate, through

fixed plate

3 and 2 centre gripping lead pan 1 of fixation clamp, it is fixed with fixation clamp 2, later adjust first connecting rod 6, second connecting rod 7 and solid fixed ring 10, make it reach required position, later insert the metal pole 12 on the thermocouple 8 in protective sheath 9, through nut 13 and screwed joint 14, with thermocouple 8 and protective sheath 9 fixed connection, insert in the solid fixed ring 10 with protective sheath 9, because limiting plate 15 is spacing each other with solid fixed ring 10, make protective sheath 9 obtain fixedly, graphite pipe 18 on the protective sheath 9 provides outermost protection, provide heat conduction and heat conduction, nonrust steel pipe 19 provides good mechanical properties and heat conduction performance, prevent that the protective sheath warp, provide good heat conduction performance when spacing ring 16 makes metal pole 12 and nonrust steel pipe 19 avoid the collision friction with the high temperature conduction oil, and heat conduction cotton 20 on the spacing ring 16 provides the cushioning effect.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a heat treatment furnace lead pan thermocouple protection device, includes lead pan (1), its characterized in that: the one end fixedly connected with fixation clamp (2) of lead pan (1), fixation clamp (2) upper surface rotates and is connected with first connecting rod (6), the one end that fixation clamp (2) were kept away from in first connecting rod (6) rotates and is connected with second connecting rod (7), the one end that first connecting rod (6) were kept away from in second connecting rod (7) rotates and is connected with solid fixed ring (10), it has protective sheath (9) to run through sliding connection in solid fixed ring (10), fixedly connected with thermocouple (8) in protective sheath (9).

2. The protection device for the lead pot thermocouple of the heat treatment furnace as claimed in claim 1, wherein: the lead pan fixing device is characterized in that a threaded rod (4) is connected to the lower surface of the fixing clamp (2) in a penetrating and rotating mode, one end of the threaded rod (4) close to the lead pan (1) is fixedly connected with a fixing plate (3), and one end of the threaded rod (4) far away from the fixing plate (3) is fixedly connected with a rotating hand wheel (5).

3. The protection device for the lead pot thermocouple of the heat treatment furnace as claimed in claim 1, wherein: thermocouple (8) include terminal box (11), terminal box (11) bottom fixedly connected with metal pole (12), the outer fixed surface cover that metal pole (12) are close to terminal box (11) one end is equipped with nut (13).

4. The protection device for the thermocouple of the lead pot of the heat treatment furnace as claimed in claim 1, wherein: protective sheath (9) are including limiting plate (15), the last fixed surface of limiting plate (15) is connected with screwed joint (14), limiting plate (15) central point puts and runs through sliding connection metal pole (12), metal pole (12) overcoat is equipped with a plurality of spacing rings (16), and is a plurality of spacing ring (16) external fixation cover is equipped with nonrust steel pipe (19), nonrust steel pipe (19) external fixation cover is equipped with graphite pipe (18).

5. The protection device for the thermocouple of the lead pot of the heat treatment furnace as claimed in claim 3, wherein: nut (13) and screwed joint (14) mutual thread engagement cooperation, sliding connection limiting plate (15) is run through in metal pole (12).

6. The protection device for the lead pot thermocouple of the heat treatment furnace as claimed in claim 1, wherein: protective sheath (9) and solid fixed ring (10) are spacing fit each other, first connecting rod (6), second connecting rod (7) and solid fixed ring (10) are made by the steel.

7. The protection device for the thermocouple of the lead pot of the heat treatment furnace as claimed in claim 4, wherein: high-temperature heat conduction oil (17) is filled between the stainless steel tube (19) and the metal rod (12), and heat conduction cotton (20) is fixedly connected in the limiting rings (16).

8. The protection device for the thermocouple of the lead pot of the heat treatment furnace as claimed in claim 4, wherein: the limiting plate (15) is made of stainless steel, the limiting ring (16) is made of ceramic, and the outer surface of the graphite pipe (18) is smooth.