Auxiliary repair tool for shaft abrasion

Abstract

The utility model discloses an auxiliary repairing tool for shaft abrasion, and relates to the field of shaft repairing, the auxiliary repairing tool comprises a first repairing die and a second repairing die, the first repairing die and the second repairing die have the same structure, and the first repairing die and the second repairing die are symmetrically distributed. The first repairing mold and the second repairing mold are connected in a fastened mode through a connecting assembly and used for wrapping a shaft repairing area. The heating cavity is formed between the inner wall and the outer wall of the first repairing mold and the inner wall of the second repairing mold, the heating assembly is installed in the heating cavity, the heating assembly can be conveniently used for heating the inner diameter of the heating cavity, and heat can be conducted to a polymer composite material through the inner walls of the first repairing mold and the second repairing mold to promote the polymer composite material to be rapidly solidified; and through the structure of the heating structure and the mold, the subsequent thermocuring treatment of the polymer composite material is facilitated, the uniform heating characteristic is extremely met, and the working efficiency of shaft wear repair is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of shaft repair, specifically an auxiliary tooling for repairing shaft wear. Background Technology

[0002] Wear is one of the most common failure modes of mechanical equipment parts. During long-term operation, mechanical equipment often experiences wear on parts such as journals and shaft ends due to various factors. Traditional repair methods mainly include scrapping and replacement, welding and machining, thermal spraying or electroplating repair. Although these repair methods can restore the precision of the equipment to varying degrees, they all require complete disassembly of the parts. This not only results in long repair times and high labor intensity, but also becomes an important factor contributing to the high cost of equipment maintenance.

[0003] Mold positioning is a key technology for achieving high-precision dimensional restoration and ensuring structural integrity in shaft wear repair. By using customized molds to spatially constrain and guide the molding of polymer composite materials, it can effectively solve problems such as dimensional deviations and shape distortions that are prone to occur in traditional repair methods. To accelerate the solidification of polymer composite materials, existing methods use heating devices to heat the mold, transferring heat to the polymer composite material and promoting its curing. However, existing heating methods have low heat conduction efficiency, and the uniformity of heating of the polymer composite material is also problematic, thus affecting the curing rate of the polymer composite material. Secondly, the connection and fixation between the upper and lower molds in existing methods mostly use multiple bolts, which leads to a lot of time spent in the mold assembly and disassembly process, indirectly affecting work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary tooling for repairing shaft wear in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary tooling for repairing shaft wear, comprising a first repair mold and a second repair mold, wherein the first repair mold and the second repair mold have the same structure and are symmetrically distributed, characterized in that the first repair mold and the second repair mold are fastened together by a connecting component, for covering the shaft repair area to compress and constrain the polymer composite material applied on the shaft;

[0006] Both the first repair mold and the second repair mold have discharge grooves on their inner walls to discharge excess polymer composite material from the shaft. Both the inner and outer walls of the first repair mold and the second repair mold have heating chambers. Heating components are installed inside the heating chambers to heat the heating chambers on the first repair mold and the second repair mold, so that the heat in the heating chambers is evenly distributed on the inner walls of the first repair mold and the second repair mold.

[0007] As a further embodiment of this utility model: the connecting component includes a crossbeam, both ends of which are fixedly connected to a connecting rod. The connecting rod is movably inserted through the outer end of the first repair mold and the second repair mold that overlap, and the end of the connecting rod away from the crossbeam is connected to a screw rod. A limit block is threadedly connected to the middle of the crossbeam, and one end of the limit block is rotatably connected to the outer end of the first repair mold.

[0008] As a further improvement of this utility model: both the first repair mold and the second repair mold have through holes at their outer ends for the connecting rod to pass through, and the inner diameter of the through hole is smaller than the outer diameter of the screw rod.

[0009] As a further embodiment of this utility model: the heating assembly includes a serpentine heating tube located inside the heating chamber, and a plug is connected to one side of the serpentine heating tube.

[0010] As a further improvement of this utility model: the plug is adapted to the contour of the opening end on one side of the heating chamber, and the plug is fixedly connected to the opening end of the heating chamber by bolts.

[0011] As a further improvement of this utility model: both ends of the first repair mold and the second repair mold are provided with mounting grooves, and a sealing gasket is fixedly connected to the inner side of the mounting groove.

[0012] As a further improvement of this utility model: the sealing gasket is made of high-temperature resistant rubber, and the thickness of the sealing gasket is greater than the depth of the mounting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention creates a heating cavity between the inner and outer walls of the first and second repair molds, and installs a heating component inside the heating cavity. This allows for easy heating of the inner diameter of the heating cavity using the heating component, and the heat is also conducted to the polymer composite material through the inner walls of the first and second repair molds, promoting its rapid solidification. Through the combination of the heating structure and the mold phase structure, not only is the subsequent thermosetting treatment of the polymer composite material convenient, but it also closely matches the characteristics of uniform heating, greatly improving the work efficiency of shaft wear repair. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure from another perspective of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the first or second repair mold of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the heating cavity of this utility model;

[0019] Figure 5 This is a schematic diagram of the heating component of this utility model.

[0020] In the figure: 1. First repair mold; 2. Second repair mold; 3. Mounting groove; 4. Sealing gasket; 5. Discharge groove; 6. Heating chamber; 7. Heating assembly; 701. Serpentine heating tube; 702. Plug; 8. Connecting assembly; 801. Cross frame; 802. Connecting rod; 803. Tightening rod; 804. Limiting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 In this embodiment of the present invention, a shaft wear repair auxiliary tooling includes a first repair mold 1 and a second repair mold 2. The first repair mold 1 and the second repair mold 2 have the same structure and are symmetrically distributed. The first repair mold 1 and the second repair mold 2 are fastened together by a connecting component 8 and are used to cover the shaft repair area to squeeze and constrain the polymer composite material applied on the shaft.

[0023] Both the first repair mold 1 and the second repair mold 2 have discharge grooves 5 on their inner walls to discharge excess polymer composite material from the shaft. Both the inner and outer walls of the first repair mold 1 and the second repair mold 2 have heating chambers 6. Heating components 7 are installed inside the heating chambers 6 to heat the heating chambers 6 on the first repair mold 1 and the second repair mold 2 so that the heat in the heating chambers 6 is evenly distributed on the inner walls of the first repair mold 1 and the second repair mold 2.

[0024] The connecting assembly 8 includes a crossbeam 801, with connecting rods 802 fixedly connected to both ends of the crossbeam 801. The connecting rods 802 are movably inserted through the outer ends of the overlapping first repair mold 1 and second repair mold 2. A screw rod 803 is connected to the end of the connecting rod 802 away from the crossbeam 801. A limit block 804 is threadedly connected to the middle of the crossbeam 801. One end of the limit block 804 is rotatably connected to the outer end of the first repair mold 1. Both the outer ends of the first repair mold 1 and the second repair mold 2 have through holes for the connecting rods 802 to pass through. The inner diameter of the through holes is smaller than the outer diameter of the screw rod 803.

[0025] The heating assembly 7 includes a serpentine heating tube 701 located in the heating chamber 6, and a plug 702 is connected to one side of the serpentine heating tube 701; the plug 702 is adapted to the profile of the open end on one side of the heating chamber 6, and the plug 702 is fixedly connected to the open end of the heating chamber 6 by bolts.

[0026] In this embodiment: by opening a heating cavity 6 between the inner and outer walls of the first repair mold 1 and the second repair mold 2, and installing a heating component 7 in the heating cavity 6, it is convenient to use the heating component 7 to heat the inner diameter of the heating cavity 6. The heat will also be conducted to the polymer composite material through the inner walls of the first repair mold 1 and the second repair mold 2, promoting its rapid solidification. Through the heating structure and the mold phase structure, it is not only convenient for the subsequent thermal curing treatment of the polymer composite material, but also highly consistent with the uniform heating characteristics, which greatly improves the working efficiency of shaft wear repair.

[0027] Specifically, when shaft wear needs repair, first clean the area on the shaft that needs repair to remove surface impurities.

[0028] Next, by reverse-screwing the limiting block 804, the first repair mold 1 moves along the length of the connecting rod 802 under the action of the limiting block 804, so that the first repair mold 1 and the second repair mold 2 are separated. The inner sidewalls of the first repair mold 1 and the second repair mold 2 are coated with release agent and set aside to dry for later use. Then, the polymer composite material is applied to the repair area of ​​the shaft. After the coating is completed, the mold can be installed into the repair area of ​​the shaft.

[0029] The mold installation involves closing the first repair mold 1 and the second repair mold 2 to cover the repair area of ​​the shaft. By turning the limiting block 804 in the forward direction, the first repair mold 1 and the second repair mold 2 are forced to fit tightly together and be fixed, thus compressing and constraining the polymer composite material applied to the shaft. Excess polymer composite material is discharged through the discharge groove 5. During this process, the heating component 7 can be used to heat the heating chamber 6. In this design, the serpentine heating tubes 701 are evenly distributed in the heating chamber 6, ensuring uniform heating of the polymer composite material and effectively accelerating its solidification time. After the polymer composite material has solidified, the limiting block 804 is turned in the reverse direction again to separate the first repair mold 1 and the second repair mold 2, releasing the mold from its covering and clamping effect on the shaft, allowing subsequent grinding operations to be performed to complete the wear repair of the shaft.

[0030] Please refer to this carefully. Figures 1-5 The first repair mold 1 and the second repair mold 2 are provided with mounting grooves 3 on the inner walls at both ends. A sealing gasket 4 is fixedly connected to the inner side of the mounting groove 3. The sealing gasket 4 is made of high temperature resistant rubber and the thickness of the sealing gasket 4 is greater than the depth of the mounting groove 3.

[0031] In this embodiment: by opening mounting grooves 3 at both ends of the inner walls of the first repair mold 1 and the second repair mold 2, and filling the mounting grooves 3 with sealing gaskets 4, after the first repair mold 1 and the second repair mold 2 are clamped and fixed, the sealing gaskets 4 are tightly fitted with the non-repair area of ​​the shaft. At this time, a space will be formed between the compressed sealing gaskets 4, the repair area of ​​the shaft, and the inner wall of the mold. The polymer composite material is in this space. At the same time, the polymer composite material will not be squeezed out from the opening ends at both ends of the module after being squeezed. This area is sealed by the sealing gaskets 4. Therefore, the polymer composite material can only be discharged from the discharge groove 5, which is convenient for collection.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An auxiliary tooling for repairing shaft wear, comprising a first repair mold (1) and a second repair mold (2), wherein the first repair mold (1) and the second repair mold (2) have the same structure and are symmetrically distributed, characterized in that, The first repair mold (1) and the second repair mold (2) are fastened together by a connecting component (8) to cover the shaft repair area in order to compress and constrain the polymer composite material applied on the shaft; Both the first repair mold (1) and the second repair mold (2) have discharge grooves (5) on their inner walls to discharge excess polymer composite material from the shaft. Both the inner and outer walls of the first repair mold (1) and the second repair mold (2) have heating chambers (6). Heating components (7) are installed inside the heating chambers (6) to heat the heating chambers (6) on the first repair mold (1) and the second repair mold (2) so that the heat in the heating chambers (6) is evenly distributed on the inner walls of the first repair mold (1) and the second repair mold (2).

2. The auxiliary tooling for repairing shaft wear according to claim 1, characterized in that, The connecting assembly (8) includes a crossbeam (801), with connecting rods (802) fixedly connected to both ends of the crossbeam (801). The connecting rods (802) are movably inserted through the outer ends of the first repair mold (1) and the second repair mold (2) that overlap. A screw rod (803) is connected to the end of the connecting rod (802) away from the crossbeam (801). A limit block (804) is threadedly connected to the middle of the crossbeam (801). One end of the limit block (804) is rotatably connected to the outer end of the first repair mold (1).

3. The auxiliary tooling for repairing shaft wear according to claim 2, characterized in that, Both the first repair mold (1) and the second repair mold (2) have through holes at their outer ends for the connecting rod (802) to pass through. The inner diameter of the through hole is smaller than the outer diameter of the screw rod (803).

4. The auxiliary tooling for repairing shaft wear according to claim 3, characterized in that, The heating assembly (7) includes a serpentine heating tube (701) located in the heating chamber (6), and a plug (702) is connected to one side of the serpentine heating tube (701).

5. The auxiliary tooling for repairing shaft wear according to claim 4, characterized in that, The plug (702) is adapted to the contour of the opening end on one side of the heating chamber (6), and the plug (702) and the opening end of the heating chamber (6) are fixedly connected by bolts.

6. The auxiliary tooling for repairing shaft wear according to claim 5, characterized in that, The first repair mold (1) and the second repair mold (2) are provided with mounting grooves (3) on the inner walls of both ends, and a sealing gasket (4) is fixedly connected to the inner side of the mounting groove (3).

7. The auxiliary tooling for repairing shaft wear according to claim 6, characterized in that, The sealing gasket (4) is made of high-temperature resistant rubber, and the thickness of the sealing gasket (4) is greater than the depth of the mounting groove (3).

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