Thermocouple straightener

Abstract

According to the thermocouple straightener provided by the utility model, the two rollers are arranged on the mounting rack, and the gap for the thermocouple to pass through is arranged between the two rollers, so that the thermocouple passes through the gap when the thermocouple straightener is used, the thermocouple straightener slides repeatedly along the thermocouple, and the thermocouple can be straightened by utilizing the compression of the two rollers, and the thermocouple straightener is simple and convenient to operate and high in working efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of maintenance, specifically, a thermocouple straightener. BACKGROUND

[0002] Thermocouples are important components in nuclear power equipment. During the operation of nuclear power equipment, especially during refueling, the mechanism for installing thermocouples needs to be moved, and sometimes the thermocouples need to be disassembled and reinstalled. During this process, the thermocouples are prone to bending, which can cause the thermocouples to break. Currently, for thermocouples that have already bent, manual straightening using pliers is usually used. This operation is relatively complex, requires high working experience for the operator, consumes a long time, and has a large radiation dose. Therefore, there is an urgent need for a tool that is easier to operate to straighten bent thermocouples. SUMMARY

[0003] The utility model provides a thermocouple straightener to solve the problem of complex operation of the prior art using manual pliers to straighten thermocouples, which helps to simplify the operation of straightening thermocouples.

[0004] To achieve the above-mentioned purpose, the utility model provides a thermocouple straightener, which comprises:

[0005] a mounting frame;

[0006] two rollers, the two rollers are mounted on the mounting frame, the axes of the two rollers are parallel, the two rollers are arranged along the width direction of the mounting frame, and there is a gap between the two rollers, which is used for the thermocouple to pass through. When the thermocouple straightener is used, the thermocouple is passed through the gap between the two rollers, and the thermocouple straightener is repeatedly slid along the thermocouple. By using the pressing of the two rollers, the thermocouple can be straightened.

[0007] As an optional implementation, it further comprises a guide device, which is arranged at the end of the length direction of the mounting frame, and the guide device is provided with a guide hole, which is arranged along the length direction of the mounting frame and corresponds to the gap. When the thermocouple straightener is used, the thermocouple is first squeezed between the two rollers and then enters the guide hole. The guide hole is beneficial to eliminate the stress of the thermocouple caused by the squeezing of the two rollers, thereby improving the straightening effect of the thermocouple straightener on the thermocouple.

[0008] As an optional implementation, the mounting frame comprises two mounting subparts arranged at intervals along the width direction of the mounting frame, and the two rollers are respectively located in the two mounting subparts.

[0009] The guiding device comprises two guiding subparts, which are respectively arranged in the two mounting subparts, and the guiding subparts are provided with guiding grooves, and the two guiding grooves are spliced to form the guiding hole. The interval between the two mounting subparts is variable, and when the thermocouple is put into or taken out of the interval, the interval between the two mounting subparts is expanded, and the thermocouple can be put into or taken out along the axial direction of the roller. When the thermocouple is straightened, the interval between the two mounting subparts is reduced, and the two rollers are pressed against the thermocouple, thereby simplifying the convenience of operation of the thermocouple straightener.

[0010] As an optional embodiment, the mounting frame is provided with an adjusting hole, which penetrates at least one of the mounting subparts along the width direction of the mounting frame and extends to the other mounting subpart.

[0011] The thermocouple straightener further comprises an adjusting device, which comprises an adjusting rod, the adjusting rod is arranged in the adjusting hole, and the adjusting rod is threadedly connected with the adjusting hole. The adjusting rod can adjust the interval between the two mounting subparts during the straightening of the thermocouple, so as to adjust the pressing force of the two rollers on the thermocouple. In practice, for the thermocouple with a more serious bending degree, a smaller pressing force can be used for preliminary correction, and a larger pressing force can be used for straightening.

[0012] As an optional embodiment, the number of the adjusting holes is two, and the two adjusting holes are arranged on the two sides of the mounting frame along the length direction of the mounting frame; the number of the adjusting devices is two, and the two adjusting devices are arranged corresponding to the two adjusting holes. In the case that one of the adjusting devices is locked, the other adjusting device is adjusted, and the pressing force of the two rollers on the thermocouple can be finely adjusted within a certain range, which can prevent the thermocouple from deviating or even falling out of the interval or the pressing groove described below when the adjusting device is adjusted.

[0013] As an optional embodiment, the two rollers with parallel axes constitute a wheel set, and the thermocouple straightener comprises a plurality of pairs of wheel sets, and the plurality of pairs of wheel sets are arranged along the length direction of the mounting frame. Since the thermocouple straightener has a plurality of pairs of wheel sets, the thermocouple can be straightened for multiple times relative to the thermocouple sliding once, which is beneficial to improve the work efficiency.

[0014] As an optional embodiment, the mounting frame is provided with a plurality of pairs of wheel sets on both sides along the thickness direction of the mounting frame. The wheel sets on the two sides of the mounting frame can have different intervals to match thermocouples of different specifications.

[0015] As an optional implementation, the roller is provided with a pressing groove in the circumferential direction, the pressing grooves of the two rollers are coaxially arranged, and the gap is formed between the two pressing grooves. The profile of the pressing groove matches the profile of the thermocouple, and in the axial cross section of the thermocouple, the pressing groove is enveloped relative to the thermocouple, and the pressing groove has straightening effect on the thermocouple at each position, and can correct the bending of the thermocouple in multiple directions at one time.

[0016] As an optional implementation, a handle is further included, which is arranged in the width direction of the mounting frame and connected to the mounting frame. The handle facilitates the operator to hold and operate.

[0017] As an optional implementation, a lifting ring and an anti-dropping hand rope are further included, the lifting ring is arranged on the mounting frame, and the anti-dropping hand rope is connected to the lifting ring. The anti-dropping hand rope can prevent the thermocouple straightener from falling accidentally.

[0018] The one or more technical solutions provided by the utility model have at least the following technical effects or advantages:

[0019] 1. The thermocouple straightener, by setting two rollers on the mounting frame, the gap for the thermocouple to pass through is formed between the two rollers, when using, the thermocouple passes through the gap, and the thermocouple straightener is repeatedly slid along the thermocouple, and the thermocouple can be straightened by the pressing effect of the two rollers, which is simple and convenient to operate and high in working efficiency.

[0020] 2. Different specifications of thermocouples can be matched. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings described herein are used to provide further understanding of the embodiments of the utility model and form a part of the utility model, and do not constitute a limitation to the embodiments of the utility model;

[0022] Figure 1 It is the isometric view of the thermocouple straightener in the utility model;

[0023] Figure 2 It is the side view of the thermocouple straightener in the utility model; Figure 1

[0024] Figure 3 It is the top view of the thermocouple straightener in the utility model. Figure 1 BRIEF DESCRIPTION OF DRAWINGS

[0025] Mounting frame-1;Mounting sub-portion-11;

[0026] Roller-2;Pressing groove-21;

[0027]

[0028] ​​Guide device-3; guide hole-31; guide sub-32;

[0029] Adjusting device-4; adjusting rod-41; hand wheel-42;

[0030] Handle-5; lifting ring-6; anti-dropping hand rope-7;

[0031] Mounting frame length direction-X; mounting frame width direction-Y; mounting frame thickness direction-Z. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0033] In the present application, the terms "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0034] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0035] In addition, the terms "mounting", "providing", "provided with", "connecting", "connected" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0036] In addition, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0037] Embodiment one

[0038] Please refer to Figures 1 to 3The embodiment provides a thermocouple straightener which comprises a mounting frame 1 and two rollers 2. The two rollers 2 are mounted on the mounting frame 1, the axes of the two rollers 2 are parallel, the two rollers 2 are arranged along the width direction Y of the mounting frame, and gaps are arranged between the two rollers 2 for the thermocouple to pass through. When the thermocouple straightener is used, the thermocouple is passed through the gaps, and the thermocouple straightener is repeatedly slid along the thermocouple, and the thermocouple can be straightened by the pressing of the two rollers 2. In addition to the thermocouple body, the thermocouple straightener can also straighten extension cables and the like in the same way.

[0039] Embodiment two

[0040] On the basis of the embodiment one, the thermocouple straightener further comprises a guide device 3 which is arranged at the end of the length direction X of the mounting frame, and the guide device 3 is provided with a guide hole 31 which is arranged along the length direction X of the mounting frame and corresponds to the gap. When the thermocouple straightener is used, the thermocouple is first pressed between the two rollers 2 and then enters the guide hole 31. The guide hole 31 is beneficial to eliminating the stress of the thermocouple caused by the pressing of the two rollers 2, thereby improving the straightening effect of the thermocouple straightener on the thermocouple.

[0041] Optionally, the mounting frame 1 comprises two mounting subparts 11 which are arranged at intervals along the width direction of the mounting frame, and the two rollers 2 are respectively located in the two mounting subparts 11. The guide device 3 comprises two guide subparts 32 which are respectively located in the two mounting subparts 11, and the guide subpart 32 is provided with a guide groove, and the two guide grooves are spliced to form the guide hole 31. The interval between the two mounting subparts 11 is variable, when the thermocouple is put into or taken out of the gap, the interval between the two mounting subparts 11 is expanded, and the thermocouple can be put into or taken out along the axial direction of the roller 2. When the thermocouple is straightened, the interval between the two mounting subparts 11 is reduced, and the two rollers 2 press the thermocouple, thereby simplifying the operation of the thermocouple straightener of the embodiment.

[0042] Optionally, the mounting frame 1 is provided with an adjusting hole which penetrates at least one mounting subpart 11 along the width direction Y of the mounting frame and extends to the other mounting subpart 11. The thermocouple straightener further comprises an adjusting device 4 which comprises an adjusting rod 41 which is arranged in the adjusting hole and is in threaded connection with the adjusting hole. The adjusting rod 41 can adjust the gap between the two mounting subparts 11 in the process of straightening the thermocouple, thereby adjusting the pressing force of the two rollers 2 on the thermocouple. In practice, for the thermocouple which is seriously bent, a smaller pressing force can be used for preliminary correction, and a larger pressing force can be used for straightening. It should be noted that the adjusting hole can penetrate one mounting subpart 11, and can be a blind hole or a through hole on the other mounting subpart 11, and the adjusting rod 41 can be screwed in or out.

[0043] Preferably, the adjusting device 4 further comprises a hand wheel 42 connected to the adjusting rod 41, and the hand wheel 42 is used to drive the adjusting rod 41 to rotate.

[0044] Optionally, the number of adjusting holes is two, and the two adjusting holes are arranged on both sides of the mounting frame 1 along the length direction X of the mounting frame; and the number of adjusting devices 4 is two, and the two adjusting devices 4 are arranged corresponding to the two adjusting holes. In the case that one of the adjusting devices 4 is locked, the other adjusting device 4 is adjusted, so that the pressing force of the two rollers 2 on the thermocouple can be finely adjusted within a certain range, and the thermocouple can be prevented from deviating from or even falling out of the gap or the pressing groove 21 below when the adjusting device 4 is adjusted.

[0045] Optionally, the two rollers 2 with the same axis direction constitute a wheel group, and the thermocouple straightener comprises a plurality of wheel groups arranged along the length direction X of the mounting frame. Since the plurality of wheel groups are arranged, the thermocouple straightener of the embodiment can straighten the thermocouple multiple times relative to the sliding of the thermocouple once, which is beneficial to improve the work efficiency.

[0046] Illustratively, the number of wheel groups can be two pairs, three pairs, four pairs or more. Preferably, the number of wheel groups is three pairs, which can achieve better straightening effect, and meanwhile the thermocouple straightener is not too heavy to be difficult to carry and operate.

[0047] Optionally, the mounting frame 1 is provided with a plurality of wheel groups on both sides along the thickness direction Z thereof. The wheel groups located on both sides of the mounting frame 1 can have different gaps to match different specifications of thermocouples.

[0048] Optionally, the roller 2 is provided with a pressing groove 21 along the circumferential direction, the pressing grooves 21 of the two rollers 2 are coaxially arranged, and the gap is formed between the two pressing grooves 21. The profile of the pressing groove 21 matches the profile of the thermocouple, and along the axial cross section of the thermocouple, the pressing groove 21 is enveloped relative to the thermocouple, and the pressing groove 21 has a straightening effect on the thermocouple at each position, which can correct the bending of the thermocouple in multiple directions at one time. In combination with the above, when the mounting frame 1 is provided with a plurality of wheel groups on both sides thereof, the pressing grooves 21 of the wheel groups located on both sides of the mounting frame 1 can have different widths or diameters.

[0049] In addition, the edges of the pressing groove 21 should be chamfered to prevent scratching the thermocouple.

[0050] Optionally, the thermocouple straightener further comprises a handle 5 arranged along the width direction Y of the mounting frame and connected to the mounting frame 1. The handle 5 is convenient for the operator to hold and operate. The handle 5 can be made of rubber or metal (surface knurling treatment).

[0051] Preferably, the number of handles 5 is two, and the two handles 5 are respectively connected to the two mounting sub-parts 11.

[0052] Optionally, the thermocouple straightener further comprises a hanging ring 6 arranged on the mounting frame 1 and a hand-escape-preventing rope 7 connected to the hanging ring 6. The hand-escape-preventing rope 7 can prevent the thermocouple straightener of the embodiment from being accidentally dropped.

[0053] The operation method of the thermocouple straightener of the utility model is briefly described below. It should be noted that, for the convenience of understanding, the operation method of the thermocouple straightener of the utility model is numbered and listed below, but the movement process described below does not mean that the thermocouple straightener of the utility model must be strictly operated according to the steps described. In practice, each step described below can be configured according to actual needs.

[0054] S1: Check the bending condition of the thermocouple. If a large-angle bending occurs, manually coarsely adjust the bending part;

[0055] S2: Loosen the two handwheels 42 of the tool counterclockwise to increase the distance between the pressure rollers;

[0056] S3: Pass the head of the thermocouple through the pressure roller from the guide hole 31, and tighten the two handwheels 42 so that the pressure groove 21 is in close contact with the thermocouple. This step is to preliminarily correct the thermocouple. The tightening force of the two handwheels 42 should not be too large, and the pressure groove 21 should be in close contact with the pressure roller;

[0057] S4: Pull the head of the thermocouple to correct the thermocouple. When a large bending part is encountered, the thermocouple can be pulled back and forth to repair it. At the same time, the thermocouple correction tool can also be rotated by several angles along the normal direction of the thermocouple to correct it back and forth. The speed of pulling back and forth should not be too fast to avoid scratching the outer surface of the thermocouple;

[0058] S5: Gradually increase the tightening force of the handwheels 42, and the pressure roller is further in close contact with the thermocouple. Repeat S4.

[0059] S6: After the above steps are completed, it is judged whether the thermocouple needs to be corrected again according to the correction condition of the thermocouple. If the thermocouple needs to be corrected again, steps S2-S5 are repeated.

[0060] S7: After the correction of the thermocouple is completed, check whether the outer surface of the thermocouple is damaged or scratched, and check whether the parts of the thermocouple correction tool are complete and whether there is looseness. Arrange the tool, remove the hand-escape-preventing rope 7, and pack it.

[0061] Although the preferred embodiments of the utility model have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0062] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A thermocouple straightener characterized by, The thermocouple straightener comprises: a mounting frame; two rollers mounted on the mounting frame, the axes of the two rollers being parallel, the two rollers being arranged along the width direction of the mounting frame, and a gap being formed between the two rollers for the thermocouple to pass through; a guide device provided at the end of the mounting frame along the length direction of the mounting frame, the guide device being provided with a guide hole arranged along the length direction of the mounting frame and corresponding to the gap; the mounting frame comprises two mounting subparts arranged along the width direction of the mounting frame, and the two rollers are respectively arranged in the two mounting subparts; the guide device comprises two guide subparts respectively arranged in the two mounting subparts, and the guide subparts are provided with guide grooves which are spliced to form the guide hole; the mounting frame is provided with an adjusting hole which penetrates at least one of the mounting subparts along the width direction of the mounting frame and extends to the other mounting subpart; the thermocouple straightener further comprises an adjusting device, and the adjusting device comprises an adjusting rod which is arranged in the adjusting hole and is threadedly connected with the adjusting hole.

2. A thermocouple straightener as claimed in claim 1, wherein The number of the adjusting holes is two, and the two adjusting holes are arranged on the two sides of the mounting frame along the length direction of the mounting frame; the number of the adjusting devices is two, and the two adjusting devices are arranged corresponding to the two adjusting holes.

3. A thermocouple straightener as claimed in claim 1, wherein, The two rollers with parallel axes form a wheel group, and the thermocouple straightener comprises multiple pairs of wheel groups which are arranged along the length direction of the mounting frame.

4. A thermocouple straightener as claimed in claim 3, wherein The mounting frame is provided with multiple pairs of wheel groups on both sides thereof along the thickness direction of the mounting frame.

5. A thermocouple straightener as claimed in claim 1, wherein, The rollers are provided with pressing grooves along the circumferential direction, the pressing grooves of the two rollers are coaxially arranged, and the gap is formed between the pressing grooves.

6. A thermocouple straightener as claimed in claim 1, wherein, The thermocouple straightener further comprises a handle which is arranged along the width direction of the mounting frame and is connected with the mounting frame.

7. A thermocouple straightener as claimed in claim 1, wherein, The thermocouple straightener further comprises a lifting ring arranged on the mounting frame and a hand rope connected with the lifting ring.

Images