Round steel external thread repairing device
By designing a round steel external thread repair device, which uses a transmission rod and sleeve to connect an electric torque wrench, the problems of large equipment weight and difficult on-site repair in the existing technology are solved, and efficient and time-saving thread repair effect is achieved.
Patent Information
- Application Number
- CN202521772421.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-20
AI Technical Summary
Existing technologies for repairing worn external threads suffer from problems such as heavy equipment that is difficult to move, difficulty in on-site repair, and time and labor costs.
A device for repairing external threads on round steel was designed, including a transmission rod and a sleeve. The transmission rod is connected to an electric torque wrench, and the thread is repaired using a die. The device can replace sleeves of different specifications to adapt to threads of different diameters, and the combination of a magnet fixing structure improves the ease of operation.
It achieves efficient, time-saving, and labor-saving thread repair, is applicable to the repair of threads of different diameters, simplifies the operation process, and reduces the requirements for operator experience.
Smart Images
Figure CN224673932U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of thread processing equipment and relates to a device for repairing external threads of round steel. Background Technology
[0002] In maintenance work, when repairing worn or damaged external threaded parts, the common practice is to use a threading machine or lathe to repair and machine the threads at the original machining site. However, when using this method, the threading machine or lathe is too heavy and the working environment is limited, making it inconvenient to transport. The damaged threads need to be transported to the workshop for repair, which is inconvenient to perform on-site. Alternatively, manual repair can be performed on-site using a die, but this is time-consuming and labor-intensive, and requires some experience from the operator. Utility Model Content
[0003] The purpose of this utility model is to provide a device for repairing external threads of round steel, addressing the problems existing in the prior art.
[0004] Therefore, the present invention adopts the following technical solution: A device for repairing external threads on round steel includes a transmission rod. One end of the transmission rod is detachably provided with a sleeve. The end of the sleeve away from the transmission rod forms an installation end. A locking platform is provided inside the first sleeve near the installation end. A die is provided inside the installation end. The side wall of the die has a locking groove. The die abuts against the locking platform. A fixing screw hole is provided on the side wall of the first sleeve near the installation end. A fixing screw is provided in the fixing screw hole. The inner end of the fixing screw hole is located in the locking groove. A connecting rod is provided at the end of the transmission rod away from the sleeve. The cross-section of the connecting rod is hexagonal.
[0005] Furthermore, an end plate is fixed to the end of the sleeve away from the installation end, and a plurality of connecting rods are provided on the end plate. A plurality of locking holes corresponding to the connecting rods are provided at the end of the transmission rod near the sleeve, and the connecting rod is located in the locking holes.
[0006] Furthermore, the connecting rod and the end plate are arranged perpendicular to each other.
[0007] Furthermore, the transmission rod has a locking groove at one end near the sleeve, and a magnet is provided in the locking groove.
[0008] Furthermore, the transmission rod and the sleeve are coaxially arranged.
[0009] Furthermore, the connecting rod and the sleeve are coaxially arranged.
[0010] Furthermore, the side wall of the transmission rod is provided with a mounting hole that penetrates the transmission rod, and a lever that drives the transmission rod to rotate is provided in the mounting hole.
[0011] The advantages of this utility model are as follows: A transmission rod and a sleeve are provided, the die is installed inside the sleeve, and the sleeve is connected to an electric torque wrench via the transmission rod. The electric torque wrench drives the die to rotate, thereby repairing the thread. This method is time-saving, labor-saving, efficient, and fast. Multiple sleeves with different inner diameters can be provided to install dies of different specifications, facilitating the repair of threads of different diameters. The structure is simple, and the usage is efficient and quick. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; In the diagram, 1-transmission rod, 2-sleeve, 3-mounting end, 4-end plate, 5-connecting rod, 6-locking hole, 7-locking platform, 8-die, 9-locking groove, 10-fixing screw hole, 11-fixing screw hole, 12-slot, 13-magnet, 14-connecting rod, 15-mounting hole, 16-lever. Detailed Implementation
[0013] The present invention will now be described in detail with reference to the accompanying drawings: like Figure 1As shown, a round steel external thread repair device includes a transmission rod 1. One end of the transmission rod 1 is detachably equipped with a sleeve 2, and the transmission rod 1 and the sleeve 2 are coaxially arranged. The transmission rod 1 can drive the sleeve 2 to rotate. The end of the sleeve 2 away from the transmission rod forms an installation end 3. An end plate 4 is fixed to the end of the sleeve 2 away from the installation end 3. Both the end plate 4 and the sleeve 2 are made of stainless steel. The end plate 4 is provided with multiple connecting rods 5 arranged perpendicular to the end plate. Specifically, two to three connecting rods 5 can be provided. The end of the transmission rod 1 near the sleeve 2 is provided with multiple locking holes 6 corresponding to the connecting rods 5. The connecting rods 5 are located in the locking holes 6, and the transmission rods are connected through the connecting rods 5. Rod 1 is connected to sleeve 2. A retaining platform 7 is located inside sleeve 1 near the mounting end, and a die 8 is located inside the mounting end 3. The die 8 abuts against the retaining platform 7. Multiple sleeves 2 with different inner diameters can be installed to facilitate the installation of dies 8 of different specifications, thereby repairing threads of different diameters. The side wall of the die 8 has a retaining groove 9, which is a standard structure for dies. A fixing screw hole 10 is located on the side wall of sleeve 2 near the mounting end 3. A fixing screw 11 is installed in the fixing screw hole 10, with its inner end located within the retaining groove 9. Applying external force to the die 8, the fixing screw 11 causes the die 8 to rotate with the sleeve 2. To prevent the connecting rod 5 from falling out of the locking hole 6 under the action of gravity, the end of the transmission rod 1 near the sleeve 2 is provided with a slot 12, and a magnet 13 is provided in the slot 12. The magnet 13 can attract the end plate 4. The end of the transmission rod 1 away from the sleeve 2 is provided with a connecting rod 14. The connecting rod 14 is coaxial with the transmission rod 1. The cross-section of the connecting rod 14 is a hexagonal structure. The transmission rod 1 can be connected to an electric torque wrench or an electric drill through the connecting rod 14. The electric torque wrench can drive the transmission rod 1 to rotate.
[0014] The side wall of the transmission rod 1 away from the sleeve 2 is provided with a through hole 15, and a lever 16 is provided in the mounting hole 15 to drive the transmission rod 1 to rotate.
[0015] The method of using this utility model is as follows: When thread repair is required, first select the appropriate die 8 and sleeve 2 according to the thread diameter. Place the die 8 in the mounting end 3 and tighten the fixing screw 11 so that the fixing screw 11 is located in the locking groove 9 and is firmly pressed. Then, insert the connecting rod 5 of the sleeve 2 into the locking hole 6 of the transmission rod 1. The end plate 4 is attracted by the magnet 13. Then, connect the electric torque wrench or electric drill connecting rod 14 (if using an electric drill, the speed of the electric drill needs to be adjusted). At this time, place the die 8 in the corresponding position of the thread. Drive the sleeve 2 and die 8 to rotate on the thread through the transmission rod 1 using the electric torque wrench or electric drill to complete the thread repair. It is efficient, fast and saves time and effort.
[0016] If an electric torque wrench or drill is unavailable, the lever 16 can be inserted into the mounting hole 15, and the transmission rod 1 can be rotated manually.
Claims
1. A device for repairing external threads on round steel bars, characterized in that, The device includes a transmission rod (1), one end of which is detachably provided with a sleeve (2). The end of the sleeve (2) away from the transmission rod (1) forms an installation end (3). A positioning platform (7) is provided inside the sleeve (2) near the installation end (3). A die (8) is provided inside the installation end (3). A retaining groove (9) is provided on the side wall of the die (8). The die (8) abuts against the positioning platform (7). A fixing screw hole (10) is provided on the side wall of the sleeve (2) near the installation end (3). A fixing screw (11) is provided inside the fixing screw hole (10). The inner end of the fixing screw hole (10) is located inside the retaining groove (9). A connecting rod (14) is provided at the end of the transmission rod (1) away from the sleeve (2). The cross-section of the connecting rod (14) is a hexagonal structure.
2. The round steel external thread repair device according to claim 1, characterized in that, The sleeve (2) is fixed with an end plate (4) at the end away from the installation end (3). The end plate (4) is provided with multiple connecting rods (5). The transmission rod (1) is provided with multiple locking holes (6) corresponding to the connecting rods (5) at the end near the sleeve (2). The connecting rod (14) is located in the locking holes (6).
3. The round steel external thread repair device according to claim 2, characterized in that, The connecting rod (5) and the end plate (4) are arranged perpendicular to each other.
4. The round steel external thread repair device according to claim 1, characterized in that, The transmission rod (1) has a slot (12) at one end near the sleeve (2), and a magnet (13) is provided in the slot (12).
5. The device for repairing external threads of round steel according to claim 1, characterized in that, The transmission rod (1) and the sleeve (2) are coaxially arranged.
6. The device for repairing external threads of round steel according to claim 1, characterized in that, The connecting rod (14) and the sleeve (2) are coaxially arranged.
7. The device for repairing external threads of round steel according to claim 1, characterized in that, The side wall of the transmission rod (1) is provided with a mounting hole (15) that passes through the transmission rod (1), and a lever (16) for driving the transmission rod (1) to rotate is provided in the mounting hole (15).