Machine building shaft on-line repair tooling

CN224896275UActive Publication Date: 2026-10-27MCC CHONGQING CONCRETE ENG CO LTD
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Patent Information

Application Number
CN202522439490.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-18
Publication Date
2026-10-27
Estimated Expiration
2035-11-18

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    Figure CN224896275U_ABST
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Abstract

The utility model discloses a kind of machine building shaft on-line repair tool, including adjusting support and repair component, the repair component is set on adjusting support and can be adjusted on machine building shaft position, the repair component is equipped with shaping sleeve, the shaping sleeve can be sleeved on machine building shaft, ensure that repair liquid and machine building shaft are fully contacted and complete static repair;This tool directly to machine building shaft is closely attached using shaping sleeve, thereby to maintain SY-111 iron repairant stable adhesion, directly on the machine complete static process, avoid the shaft first removed, the huge workload of installation after repair, reduce repair cost, improve work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to an online repair tooling for machine shafts. Background Technology

[0002] A concrete mixing plant mainly consists of five major systems: a mixing host, a material weighing system, a material conveying system, a material storage system, and a control system, as well as other auxiliary facilities. The mixing host is classified into forced mixing and gravity mixing based on its mixing method. Forced mixers are the mainstream used in mixing plants both domestically and internationally, capable of mixing various types of concrete, including fluid, semi-dry, and dry-hard concrete. Gravity mixing hosts are mainly used for mixing fluid concrete and are rarely used in mixing plants. During operation, the mixer shaft, as a key functional component, frequently experiences wear, affecting its service life. Direct replacement increases costs, therefore, repairing the worn shaft is necessary to extend its service life. Current technology often involves removing the shaft from the machine, applying a repair fluid, and then allowing it to stand for a period of time to complete the repair. This method is time-consuming, labor-intensive, and severely impacts work efficiency.

[0003] Therefore, there is an urgent need to develop a method or tool that can easily repair the shaft of the building, thereby reducing practical problems such as disassembly, large workload, high cost and long waiting time for repair of the shaft, and thus improving work efficiency. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an online repair fixture for server room shafts. This solves the practical problems of server room shaft repair requiring disassembly, large workload, high cost, and long repair waiting time, thereby improving work efficiency.

[0005] This utility model discloses an online repair fixture for a building shaft, characterized in that it includes an adjustment bracket and a repair component. The repair component is mounted on the adjustment bracket and can be adjusted to a position on the building shaft. The repair component is provided with a shaping sleeve, which can be sleeved onto the building shaft to ensure that the repair fluid is in full contact with the building shaft to complete static repair.

[0006] Furthermore, the adjustment bracket includes a support and an adjustment screw. The support has protrusions at both ends to form sliding grooves for the repair component to slide. The adjustment screw has a handle at one end, which passes through one end protrusion and then connects to the other end protrusion via the repair component to form a slide rail for the repair component to move. The adjustment screw can be rotated simultaneously to drive the repair component to reciprocate within the sliding groove.

[0007] Furthermore, the adjustment bracket also includes a telescopic support leg. The telescopic support leg has a concave frame structure in cross-section and an adjustment groove on one side. The overlap between the telescopic support leg and the support is adjusted by using butterfly bolts to adapt to different exposed lengths of the building shaft.

[0008] Furthermore, the bottom of the support is provided with a threaded hole that can be engaged with a wing bolt, which can be used to tighten and fix the telescopic support leg.

[0009] Furthermore, the repair assembly also includes a large ring and a small ring disposed at both ends of the shaping sleeve. The inner diameter of the small ring is the same as that of the shaping sleeve, and it can be driven into the repair area by an external force. The inner diameter of the large ring is the same as that of the shaping sleeve, and it can be adjusted or removed by adjusting the bracket.

[0010] Furthermore, the shaping sleeve is a hollow cylinder with its two ends welded and fixed to a large ring and a small ring, respectively.

[0011] Furthermore, the outer diameter of the large ring is slightly larger than that of the small ring, and the surface of the large ring is provided with two threaded holes through the axis of the machine building. The threaded holes do not interfere with the small ring and cooperate with the adjusting screw.

[0012] Furthermore, the end face of the small ring is provided with an annular groove around the axis, and the groove can adapt to the point of application of the axial force applied by the auxiliary tool.

[0013] Furthermore, the support has through holes protruding at both ends, and bearings connected to adjusting screws are installed in the through holes.

[0014] The beneficial effects of this utility model are as follows: The online repair tooling for machine shafts of this utility model uses a shaped sleeve to directly and tightly fit the machine shaft bearing, thereby maintaining the stable adhesion of SY-111 iron repair agent. The static process is completed directly on the machine, avoiding the huge workload of first removing the shaft, repairing it and then reinstalling it, thus reducing repair costs and improving work efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the large circular ring structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the retractable support leg of this utility model. Detailed Implementation

[0020] like Figures 1 to 4As shown: This embodiment of an online repair fixture for a machine shaft is characterized by comprising an adjusting bracket 1 and a repair component 2. The repair component is mounted on the adjusting bracket and can be adjusted to a position on the machine shaft. The bottom of the adjusting bracket 1 is provided with a retractable support leg 103 that abuts against the surface of the machine shaft motor. When removing the fixture after repair, the handle 1011 on the adjusting bracket 1 can be rotated to loosen the repair component 2 from the surface of the machine shaft, allowing it to be slowly pulled out. This effectively avoids the SY-111 iron repair agent from causing the repair component 2 to stick to the machine shaft and making it difficult to remove. In this case, the repair component 2 is provided with a shaping sleeve 202, which can be fitted onto the tower shaft to ensure that the SY-111 iron repair agent is in full contact with the tower shaft, and to maintain the stability of the repair liquid so that the SY-111 iron repair agent in the shaft crack is not lost due to gravity. Unlike the conventional method of removing the tower shaft from the rotating machine for repair, this embodiment directly applies the SY-111 iron repair agent to the tower shaft and then fits it on directly to complete the static repair process, reducing the time for disassembly and reassembly and improving the repair efficiency.

[0021] In this embodiment, the adjustment bracket 1 includes a support 102 and an adjustment screw 101. The support 102 has protrusions at both ends, namely an upper protrusion 1021 and a lower protrusion 1022, forming a sliding groove. The bottom of the protrusion 1022 has a threaded hole that cooperates with the wing bolt 104. The upper protrusion 1021 and the lower protrusion 1022 can effectively fix the adjustment screw 101 and form a point constraint, preventing the adjustment screw 101 from swinging due to lack of constraint during use and causing instability in adjustment. The adjustment groove formed by the two protrusions can also effectively protect the smooth sliding of the repair component 2 from external interference. The end of the adjustment screw 101 is provided with a handle 1011, which passes through the protrusion and the repair component 2. Manually rotating the adjustment screw 101 can drive the repair component 2 to reciprocate inside the groove. When the repair part of the tower shaft is deep and auxiliary tools cannot be used, the adjustment screw 101 can be rotated for fine adjustment, thereby reaching the part to be repaired and completing the tower shaft repair work.

[0022] In this embodiment, the adjustment bracket 1 further includes a telescopic support leg 103. The telescopic support leg 103 has a concave frame cross-section and an adjustment groove 1031 on one side. The telescopic support leg 103 is pressed and adjusted by a butterfly bolt 104 to adjust the overlap between the telescopic support leg 103 and the support 102. The butterfly bolt 104 constrains the telescopic support leg 103 and drives the entire fixture to slide within the adjustment groove 1031. The telescopic support leg 103 is fastened to the outer surface of the support 102, forming a covering effect while also being applicable to machine shafts with different extension lengths.

[0023] In this embodiment, the bottom of the protrusion 1022 is provided with a threaded hole that can cooperate with the wing bolt 104, and the wing bolt 104 can press and fix the telescopic support leg 103.

[0024] In this embodiment, the repair component 2 further includes a large ring 203 and a small ring 201 disposed at both ends of the shaping sleeve 202. The inner diameter of the small ring 201 is the same as that of the shaping sleeve 202, and it can be driven into the repair area by an external force. The inner diameter of the large ring 203 is the same as that of the shaping sleeve 202, and it can be finely adjusted or removed by adjusting the bracket. When the machine shaft is installed, the exposed end first passes through the large ring 203, then through the shaping sleeve 202, and finally out through the small ring 201. The inner diameter of the shaping sleeve 202 is slightly larger than that of the machine shaft, and the gap in the middle is not enough to allow the iron repair fluid to flow freely, thereby achieving the maximum repair effect, while ensuring the coaxiality and smoothness of the repaired surface, effectively extending the service life and overall aesthetics.

[0025] In this embodiment, the shaping sleeve 202 is a hollow cylinder with its two ends welded and fixed to the large ring 203 and the small ring 201, respectively. It is important to ensure that the large ring 203 and the small ring 201 are aligned with the axis of the shaping sleeve 202 during welding, and that the weld joints are full and dense. In particular, the end face of the small ring 201, as the stress-bearing surface, should be given special attention to the welding quality to prevent the small ring 201 from falling off under stress during the fitting process.

[0026] In this embodiment, the outer diameter of the large ring 203 is slightly larger than that of the small ring 201. The surface of the large ring 203 has two threaded holes 2031 that are axially aligned. The threaded holes 2031 do not interfere with the small ring 201 and cooperate with the adjusting screw 101. The threaded holes 2031 that are symmetrically arranged on the surface of the large ring 203 can maintain the balance of the moving sleeve 202 when the adjusting screw 101 rotates to the greatest extent, and will not be self-locking and difficult to remove. At the same time, the threaded holes 2031 completely avoid the small ring 201, so that the end face of the small ring 201 has more force points and is easy to install.

[0027] In this embodiment, the end face of the small ring 201 has an annular groove 2011 centered on the axis. During tooling installation, it is fitted into the repair position from the end face of the machine shaft. Because the shaping sleeve 202 has a high degree of fit with the machine shaft, the gap between the machine shaft and the shaping sleeve 202 is very small. The fitting process is not always smooth and often requires repeated tapping of the tooling end face with auxiliary tools to ensure smooth advancement. The groove 2021 can serve as the point of application of the axial force applied by the auxiliary tools, preventing slippage when the angle of force changes. This improves installation efficiency and safety.

[0028] In this embodiment, the support 102 has through holes at both ends. The through holes are provided with bearings and adjusting screws 101 to form a rotatable connection. During installation, the adjusting screws 101 first pass through the upper protrusion 1021, then through the large annular threaded hole 2031, and finally connect with the lower protrusion 1022. During the assembly process, it should be noted that the distance between the screws on both sides of the large annular 203 passing through the threaded hole should be kept the same to ensure the effective stroke of the adjustment distance during operation.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tooling for online repair of machine building shafts, characterized in that: The device includes an adjustment bracket and a repair component. The repair component is mounted on the adjustment bracket and can be adjusted to a position on the machine shaft. The repair component is equipped with a shaping sleeve, which can be fitted onto the machine shaft to ensure that the repair fluid is in full contact with the machine shaft to complete the static repair.

2. The online repair fixture for a machine building shaft according to claim 1, characterized in that: The adjustment bracket includes a support and an adjustment screw. The support has protrusions at both ends to form sliding grooves for the repair component to slide. The adjustment screw has a handle at one end, which passes through one end protrusion and then through the repair component to connect with the other end protrusion, forming a slide rail for the repair component to move. The adjustment screw can be rotated to drive the repair component to reciprocate inside the sliding groove.

3. The online repair fixture for a machine building shaft according to claim 1, characterized in that: The adjustment bracket also includes a telescopic support leg. The telescopic support leg has a concave frame structure in cross-section and an adjustment groove on one side. The overlap between the telescopic support leg and the support is adjusted by using butterfly bolts to adapt to different exposed lengths of the building shaft.

4. The online repair fixture for a machine building shaft according to claim 2, characterized in that: The support has a threaded hole at the bottom that can be used with a wing bolt, which can be used to tighten and fix the telescopic support leg.

5. The online repair fixture for a machine building shaft according to claim 1, characterized in that: The repair assembly also includes a large ring and a small ring at both ends of the shaping sleeve. The inner diameter of the small ring is the same as that of the shaping sleeve, and it can be driven into the repair area by an external force. The inner diameter of the large ring is the same as that of the shaping sleeve, and it can be adjusted or removed by adjusting the bracket.

6. The online repair fixture for a machine building shaft according to claim 2, characterized in that: The shaping sleeve is a hollow cylinder with its two ends welded and fixed to a large ring and a small ring, respectively.

7. The online repair fixture for a machine building shaft according to claim 5, characterized in that: The outer diameter of the large ring is slightly larger than that of the small ring. The surface of the large ring is provided with two threaded holes that are aligned with the axis of the machine building. The threaded holes do not interfere with the small ring and are engaged with the adjusting screw.

8. The online repair fixture for a machine building shaft according to claim 5, characterized in that: The small ring end face has an annular groove centered on the axis, and the groove can adapt to the point of application of the axial force applied by the auxiliary tool.

9. The online repair fixture for a machine building shaft according to claim 2, characterized in that: The support has through holes at both ends, and bearings are installed in the through holes to connect with adjusting screws.