Temperature measuring assembly of continuous heat treatment furnace

Abstract

The utility model relates to a temperature measuring assembly of a continuous heat treatment furnace, which comprises a protective sleeve and a temperature measuring probe, the tail end of the protective sleeve is provided with a guide conical part, the temperature measuring probe comprises a probe main body and a guide cable, and an accommodating cavity is arranged in the protective sleeve. The containing cavity comprises a containing channel which is provided with an opening at the head end and used for containing the temperature measuring probe and a cable channel which is provided with an opening at the tail end and used for a guide cable to penetrate through, and the cable channel is communicated with the containing channel. With the adoption of the technical scheme, the guide conical part at the tail end of the protective sleeve plays a role in guiding breakthrough in the process of taking the temperature measurement assembly out of a continuous heat treatment furnace, and pushes away or slides through internal obstacles such as a furnace wall and a mesh belt when being stressed, so that the outer surface of the whole assembly is smooth and continuous, and the service life of the assembly is prolonged. And a protruding part which can be hooked by a moving workpiece or a structural part in the furnace does not exist, so that mechanical interference and clamping stagnation caused by a structural protruding object are further avoided, and the trafficability in a complex furnace environment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat treatment furnace's temperature measurement accessory technical field especially relates to a kind of temperature measurement components of continuous heat treatment furnace. BACKGROUND

[0002] Continuous heat treatment furnace is a kind of industrial heat treatment equipment, its characteristics are that workpiece (machined piece) continuously passes through furnace, while completing heating, heat preservation and cooling and a series of heat treatment processes in the movement process.Continuous heat treatment furnace commonly used temperature measurement probe of today all use flange bolt head as test medium, load temperature measurement probe in it, then through iron wire winding, flange plate and temperature measurement probe are fixed, in the use process, flange bolt head needs to enter heat treatment furnace, but due to the particularity of structure (furnace wall, mesh belt) in continuous heat treatment furnace, after testing, when flange bolt head is extracted by pulling guide cable, flange bolt head and iron wire are very easy to appear with the structure of continuous heat treatment furnace and be blocked, and pulling guide cable is easy to damage temperature measurement probe, so that service life is greatly reduced, and the cost of purchasing temperature measurement probe again is increased. SUMMARY

[0003] In view of the above, in order to overcome the defects of the prior art, the utility model provides a kind of temperature measurement components of continuous heat treatment furnace.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of temperature measurement components of continuous heat treatment furnace, including protective sleeve and temperature measurement probe, the tail end of the protective sleeve is provided with guide cone part, the temperature measurement probe includes probe main body and guide cable, the protective sleeve is provided with containing cavity, the containing cavity includes the containing channel for containing temperature measurement probe of head end opening and the cable channel for the guide cable to pass through of tail end opening, the cable channel is communicated with containing channel.

[0005] By adopting the above technical scheme, the guide cone part of the tail end of protective sleeve makes that temperature measurement component is in the process of being taken out from continuous heat treatment furnace, guide cone part plays the role of guiding breakthrough, pushes away or slides through internal barrier such as furnace wall, mesh belt when stressed, instead of being stuck like traditional flange plate, so that the taking operation after temperature measurement becomes smooth and reliable; Figure 1The utility model discloses a traditional scheme, and the accommodating channel of traditional scheme is arranged at the tail end of the flange bolt head, in the utility model technical scheme, the accommodating channel is arranged at the head end of the protective sleeve, then the cable channel is arranged through the tail end of the protective sleeve, the guide cable connected with the probe main body passes through the cable channel, and the tail end is connected with the temperature sensing equipment circuit, under the premise that the moving direction of the temperature measurement assembly is consistent with the direction of the guide cone part, the protective sleeve protects the connecting place of the probe main body and the cable, and the temperature sensing assembly is pulled from the tail end of the guide cable when taking out, and the pulling force is first applied to the firm protective sleeve and is evenly transmitted through the sleeve, so that the pulling force is directly applied to the connecting point of the probe and the cable, the problem that the temperature measurement probe is easily damaged when pulling the guide cable is solved, the service life of the probe is greatly prolonged, and the purchase cost is reduced, and compared with the exposed, irregular and angular fixing mode of the traditional scheme "flange + iron wire winding", the whole assembly is smooth and continuous on the outer surface, and there is no protruding part for the movable workpiece or structural member in the furnace to hook, further preventing mechanical interference and jam caused by structural protrusions, and the passability in the complex furnace environment is improved.

[0006] The utility model further sets up: the guide cone part is in the circular table setting of tail end diameter is less than head end diameter, and the extension cone angle of guide cone part is a, and 20°≤a≤30°.

[0007] If the cone angle is too small, the slender guide cone part is easy to bend or sway due to lateral force when actually stressed, and the guide cone part may be inserted into the net belt gap or component gap in the furnace, causing a new jamming mode, and the small angle makes the guide cone part too long and occupies unnecessary space, if the cone angle is too large, the cone approaches a cylinder, the "guiding" function is seriously weakened, and the guide cone part cannot play a guiding and breakthrough role, 20°≤a≤30° can generate a large enough lateral component force to smoothly "expand" or "push away" the obstacles (such as loose net belt and workpiece), and the guide cone part can not be skewed and jammed, the ratio makes the pulling force applied by the operator be efficiently converted into the action of "pushing away the obstacles" and "advancing by itself", realizes labor-saving and reliable taking out, the smooth and continuous guide cone part of the circular table shape, when the guide cone part contacts the protrusions in the furnace, the contact points are continuously changed, sudden changes and impacts are avoided, the movement of the probe assembly is stable during the taking-out process, and the resistance fluctuation is small, the cross section of the circular table structure gradually increases from the tail end to the head end, the stress can be smoothly transmitted from the tail end to the sleeve main body with a larger diameter at the head end, stress concentration is avoided, the extension cone angle enables the guide cone part to withstand a certain collision and friction, and the guide cone part is not easy to wear, compared with the sharp needle tip or the thin wedge, the service life is significantly prolonged.

[0008] The utility model further sets up: the length of the guide cone part is 10-20mm.

[0009] By adopting the above technical scheme, the length that is too short will result in that the guide cone part is too short, similar to a tiny chamfer or arc, the guiding stroke is very limited, when encountering an obstacle, it cannot play the role of "pushing away", the obstacle has contacted the rear sleeve body with larger diameter, the guiding function is lost instantaneously, and the risk of returning to jam is high; the too long cone part will make the whole front end become elongated, the unnecessary length will increase the material cost and occupy the furnace space, the whole protective sleeve will be too long, and the risk of being jammed is increased; the length of 10-20mm provides a sufficient and effective guiding stroke, which can ensure that before the obstacle contacts the sleeve body, there is sufficient length of the cone surface to interact with the obstacle, and the whole process of "contacting-guiding-sliding" is smoothly completed, and the effect of "buffering breaking through" is realized.

[0010] The utility model further sets up: the diameter of cable channel is matched with the outer diameter of guide cable, the diameter of cable channel is less than the diameter of accommodating channel, and the limiting surface for limiting probe main part is formed between the two.

[0011] By adopting the above technical scheme, the diameter of cable channel is matched with the outer diameter of guide cable, the diameter of cable channel is less than the diameter of accommodating channel, and the limiting surface for limiting probe main part is formed between the two.

[0012] The utility model further sets up: the probe main part adopts cable-like probe and is arranged in accommodating channel in arc bending state, the limiting surface fixes temperature probe and protective sleeve relatively through the tail end of probe main part in limiting bending state, and the diameter of probe main part is less than the diameter of cable channel.

[0013] By adopting the technical scheme, in the traditional scheme, the probe main body is directly inserted into the cavity (the cavity is matched with the diameter of the cable) at the tail of the bolt head, and then the cable-shaped probe is fixed with the bolt head through the iron wire, in the technical scheme, the temperature measuring probe is sent into the containing channel from the cable channel opening, and then the probe main body is bent and pushed back into the containing channel, without the need of additional iron wire fixing, the possibility of material clamping is reduced, and without any additional tool or consumable (iron wire), the assembly efficiency is high; compared with the traditional scheme that the temperature measuring point, the mechanical fixing point and the stress point are "three in one", in the technical scheme, the temperature measuring end is the head end of the containing channel, the probe main body in the containing channel is responsible for temperature sensing and buffering, and the guide cable is responsible for stress, the probe main body is in a bent state in the sleeve, the tail end of the probe main body is gently pushed against the limiting surface, and the probe main body is not rigidly connected with the sleeve, when the sleeve is subjected to external tension, the probe main body can slightly adjust the posture, and the impact and tension are buffered and isolated by the arc deformation and the limiting surface, and the probe main body and the sleeve are pulled out as a flexible whole, and can be slid out of the complex path under the guidance of the guide cone part.

[0014] The utility model further sets up: the tail end of the guide cone part is provided with the horn-shaped insertion port for the guide cable, and the insertion port is arranged in axial symmetry with the cable channel as the axis.

[0015] By adopting the technical scheme, the open inclined surface of the horn forms a smooth transition zone from a large diameter to a small diameter, the operator only needs to place the head end of the probe main body in the large end range of the horn mouth, under natural pushing, the temperature measuring probe is automatically guided and collected by the inclined surface, and is accurately slid into the small-diameter cable channel in the center; the "axial symmetry with the cable channel as the axis" ensures that the insertion is consistent from any radial angle, the operation is greatly simplified, and the assembly efficiency is improved; since the diameter difference between the guide cable and the cable channel is very small, the smooth horn-shaped curved surface realizes the sending of the temperature measuring probe in the correction center, the friction is reduced, and the temperature measuring probe is protected.

[0016] The specific implementation of the utility model will be described below in combination with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the traditional scheme.

[0018] Figure 2 It is a schematic view of the embodiment of the utility model.

[0019] Figure 3 It is Figure 2 the A part of the enlarged view.

[0020] Reference signs: 1. protective sleeve, 11. guide cone, 12. containing cavity, 121. containing channel, 122. cable channel, 123. limiting surface, 13. insertion port, 2. temperature measurement probe, 21. probe body, 22. guide cable, 3. flange bolt head, 31. flange, 4. iron wire. DETAILED DESCRIPTION

[0021] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

[0022] Referring to the accompanying drawings Figures 1-3 The embodiment discloses a temperature measurement assembly of a continuous heat treatment furnace, which comprises a protective sleeve 1 and a temperature measurement probe 2. The tail end of the protective sleeve 1 is provided with a guide cone 11. The temperature measurement probe 2 comprises a probe body 21 and a guide cable 22. The protective sleeve 1 is provided with a containing cavity 12. The containing cavity 12 comprises a containing channel 121 at the head end for containing the temperature measurement probe 2 and a cable channel 122 at the tail end for the guide cable 22 to pass through. The cable channel 122 is in communication with the containing channel 121.

[0023] The embodiment is further provided with the following arrangement: the guide cone 11 is in the form of a circular truncated cone with a tail end diameter smaller than a head end diameter. The extension cone angle of the guide cone 11 is a, and 20°≤a≤30°.

[0024] The embodiment is further provided with the following arrangement: the length of the guide cone 11 is 10-20 mm.

[0025] The embodiment is further provided with the following arrangement: the diameter of the cable channel 122 is matched with the outer diameter of the guide cable 22. The diameter of the cable channel 122 is smaller than the diameter of the containing channel 121, and a limiting surface 123 for limiting the probe body 21 is formed therebetween.

[0026] The embodiment is further provided with the following arrangement: the probe body is in the form of a cable-shaped probe and is arranged in an arc-shaped bent state in the containing channel 121. The limiting surface 123 fixes the temperature measurement probe 2 and the protective sleeve 1 relative to each other by limiting the tail end of the probe body in the bent state. The diameter of the probe body is smaller than the diameter of the cable channel 122.

[0027] The embodiment is further provided with the following arrangement: the tail end of the guide cone 11 is provided with a horn-shaped insertion port 13 for the guide cable 22 to pass through. The insertion port 13 is symmetrically arranged about the cable channel 122 as an axis.

[0028] In the description of the utility model, it is necessary to explain that the position or location relation indicated by the terms "head end", "tail end" and the like is the position or location relation based on the drawing shown, wherein, only for the convenience of describing the utility model and simplifying the description, it is not indicated or implied that the device or element indicated must have a specific position, be constructed and operated in a specific position, and the "between" above does not only mean the position between, but also includes the meaning of the interaction between different parts.

[0029] Although the terms such as protective sleeve 1, guide cone 11, accommodating cavity 12, accommodating channel 121, cable channel 122, limiting surface 123, insertion opening 13, temperature measuring probe 2, probe body 21, guide cable 22 are used more in this paper, but the possibility of using other terms is not excluded. Using these terms is only to facilitate the description and explanation of the essence of the utility model; any additional limitation is contrary to the spirit of the utility model.

Claims

1. A temperature measuring assembly for a continuous heat treatment furnace, characterized by: The temperature measuring probe comprises a protective sleeve and a temperature measuring probe, a guide cone is arranged at the tail end of the protective sleeve, the temperature measuring probe comprises a probe main body and a guide cable, a containing cavity is arranged in the protective sleeve, the containing cavity comprises a containing channel for containing the temperature measuring probe which is open at the head end and a cable channel for the guide cable to pass through which is open at the tail end, and the cable channel is in communication with the containing channel.

2. The temperature measuring assembly of a continuous heat treatment furnace according to claim 1, characterized in that: The guide cone is arranged in the shape of a circular truncated cone with the tail end diameter being smaller than the head end diameter, the extension cone angle of the guide cone is a, and 20°≤a≤30°.

3. The temperature measuring assembly of a continuous heat treatment furnace according to claim 1, characterized in that: The length of the guide cone is 10-20mm.

4. The temperature measuring assembly of a continuous heat treatment furnace according to claim 1, characterized in that: The diameter of the cable channel is matched with the outer diameter of the guide cable, the diameter of the cable channel is smaller than the diameter of the containing channel, and a limiting surface for limiting the probe main body is formed therebetween.

5. The temperature measuring assembly of a continuous heat treatment furnace according to claim 4, characterized in that: The probe main body is arranged in the containing channel in the shape of a cable and in an arc-shaped bending state.

6. The temperature measuring assembly of a continuous heat treatment furnace according to claim 1, characterized in that: The tail end of the guide cone is provided with a horn-shaped insertion port for the guide cable to pass through, and the insertion port is arranged in axial symmetry with the cable channel as the axis.

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