Shaft cutting device for limited space

By designing support plates, fixing and adjusting the angle of magnetic drills and core drill bits in confined spaces, and combining this with coolant spraying, the problem of existing cutting devices being unable to cut thick shafts in confined spaces has been solved, improving equipment maintenance efficiency and the service life of core drill bits.

CN223932647UActive Publication Date: 2026-02-24SHANGHAI RUIQI TRADE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520629707.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-02-24
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

Existing cutting devices are difficult to effectively cut thick shafts in confined spaces, affecting equipment maintenance efficiency. Furthermore, large cutting devices are difficult to install, small devices are inefficient, and overall disassembly of the equipment is costly, time-consuming, and labor-intensive.

Method used

A shaft-type cutting device for confined space was designed, including a support plate, a magnetic drill, a core drill bit, and a nozzle. It is fixed to the shaft by an adjusting seat and bolts, and equipped with a coolant supply system to fix the magnetic drill and the core drill bit and adjust their angle. Combined with coolant spraying to cool down, it enables continuous drilling and cutting.

Benefits of technology

It improves equipment maintenance efficiency, reduces the risk of overheating and wear of core drill bits, extends service life, and ensures cutting efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223932647U_ABST
    Figure CN223932647U_ABST
Patent Text Reader

Abstract

The utility model discloses a shaft cutting device in a limited space, and belongs to the technical field of cutting devices. A shaft cutting device in a limited space comprises a supporting plate with a positioning hole in the surface, the supporting plate is connected to a shaft of equipment through an adjusting base, the shaft cutting device further comprises a magnetic drill fixedly installed on the supporting plate, a coring drill bit is fixedly installed at the output end of the magnetic drill, and the bottom end of the coring drill bit faces the positioning hole; through cooperative use of the adjusting seat A, the adjusting seat B, the bolt and the nut, the magnetic drill and the coring drill bit can be fixedly mounted at proper positions near a shaft, and meanwhile, the use positions and angles of the magnetic drill and the coring drill bit can be conveniently adjusted, so that the magnetic drill and the coring drill bit can continuously drill a thick shaft, and the drilling efficiency is improved. Holes of the gang drill are connected into a line, so that a rough drill on equipment can be conveniently cut off, and the maintenance efficiency of the equipment is further improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular to a shaft cutting device for confined space. Background Technology

[0002] Cutting devices are widely used in manufacturing, construction, metal processing and other fields. They are used to divide materials into predetermined sizes and shapes. Currently, during the maintenance of large equipment, it is often necessary to remove the coarse shaft from the equipment for repair or replacement. However, due to the limited space, limited operating tools and insufficient operating space for personnel, it is impossible to remove the coarse shaft from the equipment. Therefore, it is necessary to cut the coarse shaft before proceeding with subsequent maintenance operations.

[0003] Currently, when actually cutting coarse shafts, large cutting equipment is often difficult to install and operate in confined spaces, while small cutting equipment is inefficient and cannot meet the needs of cutting coarse shafts, affecting equipment maintenance efficiency. In addition, the method of disassembling the entire equipment is costly, time-consuming, labor-intensive, and not conducive to equipment maintenance, and has a significant impact on production. Therefore, in order to solve the above-mentioned problems, a shaft cutting device with confined space is provided. Utility Model Content

[0004] The purpose of this invention is to solve the problem that current cutting devices are inconvenient for cutting the roughing material on the equipment, thus affecting the efficiency of equipment maintenance, and to propose a space-constrained shaft cutting device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A shaft cutting device for confined space includes a support plate with positioning holes on its surface, the support plate being connected to the shaft of the device via an adjusting seat; and a magnetic drill fixedly mounted on the support plate, wherein a core drill bit is fixedly mounted on the output end of the magnetic drill, the bottom end of the core drill bit facing the positioning holes; and a nozzle disposed on the magnetic drill, wherein an inclined plate is fixedly connected to one side of the magnetic drill, the nozzle is engaged with the inclined plate, the spraying end of the nozzle facing the core drill bit; and the magnetic drill is provided with a supply section for providing coolant to the nozzle.

[0007] To facilitate fixing the device to the shaft, preferably, the adjusting seat includes adjusting seat A and adjusting seat B sleeved on the shaft, the adjusting seat A and adjusting seat B are connected by a fastener, and the support plate is fixedly connected to adjusting seat B.

[0008] To connect and fix the adjusting seat A and the adjusting seat B, the fixing component further includes a bolt and a nut, the bolt passing through the through holes on the adjusting seat A and the adjusting seat B, and the nut being threaded onto the bolt.

[0009] In order to cool down the core drill bit, preferably, the liquid supply unit includes a solution tank fixedly connected to the outer wall of the magnetic drill, and the magnetic drill is provided with a conveying component for conveying the coolant in the solution tank to the nozzle.

[0010] In order to deliver the coolant in the solution tank to the nozzle, the delivery component further includes a delivery pump fixedly installed on the outer wall of the magnetic drill. The inlet end of the delivery pump is connected to the solution tank through a suction pipe, and the outlet end of the delivery pump is connected to the nozzle through a delivery pipe.

[0011] To facilitate observation of the coolant storage capacity in the solution tank, the solution tank is further provided with an observation window, the surface of which is provided with scale lines.

[0012] Compared with the prior art, this utility model provides a shaft cutting device for confined spaces, which has the following advantages:

[0013] 1. The shaft cutting device in this confined space, through the combined use of adjusting seat A, adjusting seat B, bolts and nuts, can fix the magnetic drill and core drill bit in a suitable position near the shaft. At the same time, it can also facilitate the adjustment of the position and angle of the magnetic drill and core drill bit, so that the magnetic drill and core drill bit can continuously drill holes in the coarse shaft, so that the holes of the drilling machine are connected into a line, which can facilitate the coarse cutting on the equipment, thereby improving the maintenance efficiency of the equipment.

[0014] 2. The shaft cutting device in this confined space, by starting the delivery pump, sprays the coolant in the solution tank onto the surface of the core drill bit, which can cool the core drill bit and reduce the risk of softening or damage due to overheating, thereby extending its service life. It can also reduce wear on the core drill bit and maintain its cutting efficiency, thereby further improving the maintenance efficiency of the equipment.

[0015] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model solves the problem that current cutting devices are inconvenient for cutting the roughing material on the equipment, thus affecting the efficiency of equipment maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the isometric structure of a shaft-type cutting device for confined space proposed in this utility model;

[0017] Figure 2 This is a partial front view of the structure of a shaft-type cutting device in a confined space according to the present invention, under the cutting state.

[0018] Figure 3This is a partial front view of the structure of a shaft-type cutting device in a confined space under rotational conditions, as proposed in this utility model.

[0019] Figure 4 This is a partial isometric structural diagram of a shaft-type cutting device for confined space proposed in this utility model.

[0020] In the diagram: 1. Support plate; 2. Positioning hole; 3. Magnetic drill; 4. Core drill bit; 5. Nozzle; 51. Solution tank; 52. Transfer pump; 53. Suction pipe; 54. Infusion pipe; 55. Observation window; 6. Inclined plate; 7. Adjusting seat A; 8. Adjusting seat B; 9. Bolt; 91. Nut. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Example:

[0024] Reference Figures 1-4 This utility model provides a shaft cutting device for confined space, including a support plate 1 with positioning holes 2 on its surface. The support plate 1 is connected to the shaft of the device through an adjusting seat. It also includes: a magnetic drill 3, which is fixedly installed on the support plate 1, wherein a core drill bit 4 is fixedly installed at the output end of the magnetic drill 3, and the bottom end of the core drill bit 4 faces the positioning hole 2; a nozzle 5, which is provided on the magnetic drill 3, wherein a inclined plate 6 is fixedly connected to one side of the magnetic drill 3, and the nozzle 5 is snapped onto the inclined plate 6, with the spraying end of the nozzle 5 facing the core drill bit 4. The magnetic drill 3 is provided with a liquid supply part for providing coolant to the nozzle 5.

[0025] Specifically, during use, the adjusting seat allows the magnetic drill 3 and the core drill bit 4 to be fixedly installed in a suitable position near the shaft. It also facilitates adjustment of the position and angle of the magnetic drill 3 and the core drill bit 4, enabling continuous drilling of the coarse shaft. This connects the holes of the drill in a line, facilitating the cutting of rough sections on the equipment and improving maintenance efficiency. The liquid supply unit allows the nozzle 5 to spray coolant onto the surface of the core drill bit 4, cooling it and reducing the risk of softening or damage due to overheating, thus extending its service life. It also reduces wear and maintains cutting efficiency, further improving maintenance efficiency.

[0026] The adjusting seat includes adjusting seat A7 and adjusting seat B8 sleeved on the shaft. Adjusting seat A7 and adjusting seat B8 are connected by a fastener. Support plate 1 is fixedly connected to adjusting seat B8.

[0027] Specifically, during use, the device can be easily fixed in a suitable position near the shaft by the cooperation of adjusting seat A7, adjusting seat B8 and fixing parts. At the same time, the position and angle of the magnetic drill 3 can be adjusted so that the magnetic drill 3 and the core drill bit 4 can continuously drill holes in the coarse shaft.

[0028] The fasteners include bolt 9 and nut 91. Both adjusting seats A7 and B8 are provided with through holes. Bolt 9 passes through the through holes on adjusting seats A7 and B8, and nut 91 is threaded onto bolt 9.

[0029] Specifically, the bolt 9 and nut 91 can be used to connect and fix the adjusting seat A7 and adjusting seat B8, and the tightness of the connection between adjusting seat A7 and adjusting seat B8 can be adjusted, so that the device can rotate and change the position and angle of the magnetic drill 3.

[0030] The liquid supply unit includes a solution tank 51 fixedly connected to the outer wall of the magnetic drill 3. The magnetic drill 3 is equipped with a conveying component for conveying the coolant in the solution tank 51 to the nozzle 5. The conveying component includes a delivery pump 52 fixedly installed on the outer wall of the magnetic drill 3. The inlet end of the delivery pump 52 is connected to the solution tank 51 through a suction pipe 53, and the outlet end of the delivery pump 52 is connected to the nozzle 5 through a delivery pipe 54. The solution tank 51 is equipped with an observation window 55, and the surface of the observation window 55 is equipped with scale lines for workers to observe the storage capacity of the coolant in the solution tank 51.

[0031] Specifically, during use, by starting the delivery pump 52, the coolant in the solution tank 51 can be drawn and delivered to the nozzle 5 through the extraction pipe 53 and the delivery pipe 54. The coolant is then sprayed onto the surface of the core drill bit 4 through the nozzle 5, which can cool the core drill bit 4 and reduce the risk of it softening or being damaged due to overheating, thereby extending its service life. It can also reduce the wear of the core drill bit 4 and maintain its cutting efficiency, thereby further improving the maintenance efficiency of the equipment.

[0032] Working principle: In the process of using this shaft cutting device in confined space, firstly, through the cooperation of adjusting seat A7 and adjusting seat B8, bolt 9 and nut 91, the magnetic drill 3 can be fixedly installed in a suitable position near the thick shaft, and the position and angle of the magnetic drill 3 are adjusted so that the core drill bit 4 is perpendicular to the thick shaft. Then, by starting the magnetic drill 3, the core drill bit 4 is driven to rotate and move downward, so that it passes through the positioning hole 2 and drills the thick shaft.

[0033] Then, after the first hole is drilled, the nut 91 on the bolt 9 can be rotated to adjust the clamping tightness of the adjusting seat A7 and adjusting seat B8, causing them to loosen. Then, the adjusting seat A7 and adjusting seat B8 are rotated in a circular motion, which simultaneously moves the magnetic drill 3 and the core drill bit 4 to the appropriate position.

[0034] Subsequently, the rotatable nut 91 secures the adjusting seat A7 and adjusting seat B8, and the magnetic drill 3 is restarted to make the core drill bit 4 drill holes in the coarse shaft. This process is repeated until the edges of the drill holes on the coarse shaft overlap to form a row of drills. Through continuous drilling, the holes of the row of drills are connected into a line, and finally the coarse shaft is cut off.

[0035] This device, through the coordinated use of adjusting seat A7, adjusting seat B8, bolt 9, and nut 91, can fix the magnetic drill 3 and core drill bit 4 in a suitable position near the shaft. It also facilitates the adjustment of the position and angle of the magnetic drill 3 and core drill bit 4, so that the magnetic drill 3 and core drill bit 4 can continuously drill holes in the coarse shaft, connecting the holes of the drill in a line. This makes it easier to cut off the coarse cutting on the equipment, thereby improving the maintenance efficiency of the equipment.

[0036] In addition, during use, by starting the delivery pump 52, the coolant in the solution tank 51 is delivered to the nozzle 5 through the extraction pipe 53 and the delivery pipe 54, and the coolant is sprayed onto the surface of the core drill bit 4 through the nozzle 5. This can cool down the core drill bit 4, reduce the risk of the core drill bit 4 softening or being damaged due to overheating, thereby extending its service life. It can also reduce the wear of the core drill bit 4 and maintain its cutting efficiency, thereby further improving the maintenance efficiency of the equipment.

[0037] 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. A shaft cutting device for confined space, comprising a support plate (1) with positioning holes (2) on its surface, the support plate (1) being connected to the shaft of the device via an adjusting seat, characterized in that, Also includes: A magnetic drill (3) is fixedly installed on the support plate (1). The output end of the magnetic drill (3) is fixedly equipped with a core drill bit (4), and the bottom end of the core drill bit (4) faces the positioning hole (2). The nozzle (5) is mounted on the magnetic drill (3). The magnetic drill (3) is fixedly connected to a slant plate (6) on one side, and the nozzle (5) is snapped onto the slant plate (6). The spraying end of the nozzle (5) faces the core drill bit (4). The magnetic drill (3) is provided with a liquid supply section for providing coolant to the nozzle (5).

2. The shaft cutting device for confined space according to claim 1, characterized in that, The adjusting seat includes adjusting seat A (7) and adjusting seat B (8) sleeved on the shaft. The adjusting seat A (7) and adjusting seat B (8) are connected by a fastener. The support plate (1) is fixedly connected to the adjusting seat B (8).

3. The shaft cutting device for confined space according to claim 2, characterized in that, The fastener includes a bolt (9) and a nut (91), the bolt (9) passing through through holes in adjusting seat A (7) and adjusting seat B (8), and the nut (91) being threaded onto the bolt (9).

4. The shaft cutting device for confined space according to claim 1, characterized in that, The liquid supply unit includes a solution tank (51) fixedly connected to the outer wall of the magnetic drill (3). The magnetic drill (3) is provided with a conveying component, which is used to convey the coolant in the solution tank (51) to the nozzle (5).

5. A shaft-type cutting device for confined space according to claim 4, characterized in that, The conveying component includes a conveying pump (52) fixedly installed on the outer wall of the magnetic drill (3). The inlet end of the conveying pump (52) is connected to the solution tank (51) through the liquid extraction pipe (53), and the outlet end of the conveying pump (52) is connected to the nozzle (5) through the liquid delivery pipe (54).

6. A shaft-type cutting device for confined space according to claim 4, characterized in that, The solution tank (51) is provided with an observation window (55), and the surface of the observation window (55) is provided with scale lines.