Heat treatment device for drill rod

By designing an automated drill pipe heat treatment device, which uses a telescopic motor to drive the heating coil to move in the horizontal and vertical directions, combined with a cooling device, the problem of low automation in the heat treatment of multi-specification drill pipes has been solved, and efficient drill pipe heat treatment has been achieved.

CN223509920UActive Publication Date: 2025-11-04XIAN RES INST OF CHINA COAL TECH & ENG GRP CORP
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Patent Information

Application Number
CN202422733162.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-11-04
Estimated Expiration
2034-11-11

AI Technical Summary

Technical Problem

The lack of specialized automated equipment for handling drill pipes of various sizes in the current technology leads to low work efficiency, high labor intensity, and difficulty in achieving professional and intelligent collaborative control.

Method used

A drill pipe heat treatment device was designed, which uses a telescopic motor to drive a heating coil to move in the horizontal and vertical directions, and combines it with a cooling device to carry out automated heat treatment. The device is automatically controlled by a controller.

Benefits of technology

It improves the efficiency of drill pipe heat treatment, reduces manual operation, and is suitable for large-scale industrial use and promotion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a heat treatment device for a drill rod. Horizontal movement of a heating coil is realized by sliding a telescopic motor on a fixed cross beam. The telescopic motor achieves vertical movement of the heating coil through stretching and retracting of an output shaft of the telescopic motor, and the heating coil moves in the horizontal direction and the vertical direction so that the heating coil can be close to or away from the drill rod. In addition, the cooling device is used for cooling the drill rod, heat treatment of the drill rod is achieved, the overall working efficiency is improved, and the device is suitable for industrial large-scale use and popularization.
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Description

Technical Field

[0001] This utility model belongs to the field of drill pipe processing, and specifically relates to a drill pipe heat treatment device. Background Technology

[0002] Heat treatment is a metal heat treatment process that involves heating, holding, and cooling materials in a solid state to obtain the desired microstructure and properties.

[0003] Currently, the heat treatment industry suffers from low automation. In the drill pipe heat treatment process, the drill pipe enters the heat treatment workbench from the previous process for processing, and then proceeds to the next process step after completion. Throughout this process, there is a lack of specialized automated equipment for handling drill pipes of various specifications, often requiring manual operation. This involves a large number of workers, resulting in high costs, relatively low labor efficiency, and difficulty in achieving professional and intelligent collaborative control. Therefore, implementing heat treatment for drill pipes of various specifications is relatively challenging. Utility Model Content

[0004] The purpose of this invention is to provide a drill pipe heat treatment device to solve the problem of low work efficiency caused by the lack of automated equipment specifically designed for processing drill pipes of various specifications in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A drill pipe heat treatment apparatus includes a support base and a heat treatment device, wherein the support base is capable of supporting the drill pipe;

[0007] The heat treatment device includes a fixed crossbeam located above a support base; a transverse guide rail is provided at the bottom of the fixed crossbeam, the transverse guide rail extends laterally and is located in the same vertical plane as the center axis of the drill rod; a telescopic motor is slidably mounted on the transverse guide rail; the output shaft of the telescopic motor is vertically downward and fixedly connected to the connecting frame.

[0008] The connecting frame is equipped with a cooling device that can output coolant downwards; a heating coil is provided on one side of the connecting frame.

[0009] This utility model also has the following features:

[0010] Furthermore, the support base is equipped with a lifting platform, and the support base carries the drill rod via the lifting platform.

[0011] Furthermore, "V"-shaped support blocks are provided on both sides of the lifting platform, and the drill rod can be locked inside the two support blocks.

[0012] Furthermore, the cooling device includes a circulating cooling pipe, one end of which can be connected to an external liquid delivery device, and the other end of which can output coolant downwards.

[0013] Furthermore, a connecting plate is slidably mounted on the transverse guide rail of the fixed crossbeam, and the telescopic motor is slidably connected to the fixed crossbeam through the connecting plate.

[0014] Furthermore, a push-pull motor is provided on one side of the fixed crossbeam, and the output shaft of the push-pull motor is connected to the connecting plate.

[0015] Furthermore, it also includes a controller; a position sensor is provided on the heating coil;

[0016] The controller is connected to the telescopic motor, cooling device, heating coil, position sensor, lifting platform and push-pull motor respectively.

[0017] Compared with the prior art, this utility model has the following technical effects:

[0018] This invention relates to a drill pipe heat treatment device that utilizes a telescopic motor sliding on a fixed crossbeam to achieve horizontal movement of the heating coil. The telescopic motor, through the extension and retraction of its output shaft, achieves vertical movement of the heating coil. This movement of the heating coil in both horizontal and vertical directions allows it to move closer to or further away from the drill pipe. Furthermore, a cooling device is used to cool the drill pipe, thus achieving heat treatment and improving overall work efficiency. This device is suitable for large-scale industrial use and promotion. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the drill pipe heat treatment device of this utility model.

[0020] The meanings of the labels in the diagram are as follows: 1. Support base; 2. Fixed crossbeam; 3. Transverse guide rail; 4. Telescopic motor; 5. Connecting frame; 6. Heating coil; 7. Lifting platform; 8. Support block; 9. Circulating cooling pipe; 10. Connecting plate; 11. Push-pull motor. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, all components in this invention are known in the prior art. For example, the heating coil uses a commonly known heating coil.

[0022] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0023] like Figure 1As shown, a drill pipe heat treatment device includes a support base 1 and a heat treatment device, wherein the support base 1 can support the drill pipe;

[0024] The heat treatment device includes a fixed crossbeam 2, which is located above the support base 1. The fixed crossbeam 2 extends laterally and is located in the same vertical plane as the center axis of the drill pipe.

[0025] A horizontal guide rail 3 is provided at the bottom of the fixed crossbeam 2, and a telescopic motor 4 is slidably mounted on the horizontal guide rail 3; the output shaft of the telescopic motor 4 is vertically mounted and fixedly connected to the connecting frame 5.

[0026] The connecting frame 5 is equipped with a cooling device that can output coolant downwards; a heating coil 6 is installed on one side of the connecting frame 5.

[0027] When in use, this device delivers the drill rod to the support base 1 via an external device;

[0028] The heating coil 6 moves horizontally by sliding the telescopic motor 4 on the transverse guide rail 3 of the fixed crossbeam 2. The vertical movement of the heating coil 6 is achieved by the telescopic motor 4 extending and retracting its output shaft.

[0029] By moving the heating coil 6 in both horizontal and vertical directions, the heating coil 6 can be brought closer to or away from the drill rod.

[0030] During the heat treatment of the drill pipe, the heating coil 6 heats the friction weld at the male and female joint ends of the drill pipe. After heating is completed, the heating is stopped, the induction heating coil 6 deflects, and the cooling device sprays water to cool the heated area. After cooling is completed, the heat treatment is finished.

[0031] As a preferred embodiment, the support base 1 is equipped with a lifting platform 7, through which the drill rod is mounted. The lifting platform 7 can adjust the height of the drill rod by its own lifting mechanism, and in conjunction with the telescopic motor 4, it is more conducive to adjusting the relative position of the heating coil 6 and the drill rod.

[0032] As a preferred option, both sides of the lifting platform 7 are provided with "V"-shaped support blocks 8, and the drill rod can be locked inside the two support blocks 8.

[0033] As a preferred embodiment, the cooling device includes a circulating cooling pipe 9, one end of which can be connected to an external fluid delivery device, and the other end of which can output coolant downwards. The circulating cooling pipe 9 sprays water to cool the heated part of the drill pipe, and the heat treatment can be completed after cooling is finished.

[0034] As a preferred embodiment, a connecting plate 10 is slidably mounted on the transverse guide rail 3 of the fixed beam 2, and the telescopic motor 4 is slidably connected to the fixed beam 2 through the connecting plate. This improves the connection strength between the telescopic motor 4 and the transverse guide rail 3.

[0035] As a preferred embodiment, a push-pull motor 11 is provided on one side of the fixed crossbeam 2, and the output shaft of the push-pull motor 11 is connected to the connecting plate 10.

[0036] Further preferred options include a controller;

[0037] A position sensor is installed on the heating coil 6;

[0038] The controller is connected to the telescopic motor 4, cooling device, heating coil 6, position sensor, lifting platform 7, and push-pull motor 11, respectively. Automatic control is achieved through the controller, further saving labor costs and improving work efficiency.

[0039] It should be noted that the controller is selected conventionally and is a known, existing controller. The connection and control of the controller with other devices all adopt existing methods known in the prior art, without any improvement to the algorithm.

Claims

1. A drill pipe heat treatment device, characterized in that, It includes a support base (1) and a heat treatment device, wherein the support base (1) is capable of mounting a drill rod; The heat treatment device includes a fixed crossbeam (2) located above the support base (1); a transverse guide rail (3) is provided at the bottom of the fixed crossbeam (2), the transverse guide rail (3) extends laterally and is located in the same vertical plane as the center axis of the drill rod; a telescopic motor (4) is slidably arranged on the transverse guide rail (3); the output shaft of the telescopic motor (4) is arranged vertically downward and is fixedly connected to the connecting frame (5); The connecting frame (5) is equipped with a cooling device inside, which can output coolant downwards; a heating coil (6) is provided on one side of the connecting frame (5).

2. The drill pipe heat treatment apparatus as described in claim 1, characterized in that, The support base (1) is provided with a lifting platform (7), and the support base (1) carries the drill rod through the lifting platform (7).

3. The drill pipe heat treatment apparatus as described in claim 2, characterized in that, The lifting platform (7) is provided with "V"-shaped support blocks (8) on both sides, and the drill rod can be locked inside the two support blocks (8).

4. The drill pipe heat treatment apparatus as described in claim 3, characterized in that, The cooling device includes a circulating cooling pipe (9), one end of which can be connected to an external liquid delivery device, and the other end can output coolant downwards.

5. The drill pipe heat treatment apparatus as described in claim 4, characterized in that, A connecting plate (10) is slidably mounted on the transverse guide rail (3) of the fixed crossbeam (2), and the telescopic motor (4) is slidably connected to the fixed crossbeam (2) through the connecting plate.

6. The drill pipe heat treatment apparatus as described in claim 5, characterized in that, A push-pull motor (11) is provided on one side of the fixed crossbeam (2), and the output shaft of the push-pull motor (11) is connected to the connecting plate (10).

7. The drill pipe heat treatment apparatus as described in claim 5, characterized in that, It also includes the controller; A position sensor is provided on the heating coil (6); The controller is connected to the telescopic motor (4), cooling device, heating coil (6), position sensor, lifting platform (7) and push-pull motor (11) respectively.