Quick-release flywheel for punching machine
By setting an oil injection hole and a lubrication channel in the motor shaft sleeve of the flywheel body, the problem of difficult disassembly caused by rust between the flywheel and the motor shaft is solved, and a quick disassembly effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-03-20
AI Technical Summary
Existing flywheels used in punch presses are prone to rusting after being fixed to the motor shaft for a long time, making disassembly difficult. They also lack an effective lubrication structure, making quick disassembly impossible.
An oil injection hole and a lubrication oil passage are provided inside the motor shaft sleeve of the flywheel body. Lubricating oil is supplied into the lubrication oil passage through the oil injection hole, forming a grid-like distribution to ensure uniform coverage of the inner wall of the shaft hole. It can be quickly disassembled when injecting rust remover.
It enables quick disassembly of the flywheel and motor shaft, avoiding rust problems and improving disassembly efficiency and convenience.
Smart Images

Figure CN224017631U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to punch press accessory field more specifically, it relates to a quick release flywheel for punch press. BACKGROUND
[0002] The flywheel used in the punch press is one of the core components of the stamping equipment, its main function is to store and release kinetic energy, ensure that the punch press provides stable energy in the short-time, high-intensity stamping action, when the punch press works, the motor continuously provides power, but the stamping action is intermittent (instantaneous high energy demand), the flywheel stores the energy output by the motor through rotational inertia, releases kinetic energy at the moment of stamping, avoids the motor directly bearing impact load, protects the equipment and improves energy efficiency, the energy stored by the flywheel can be reused, reduces the energy consumption of frequent start-stop of the motor, and is suitable for high-load working conditions of large-tonnage punch presses.
[0003] The main body of the flywheel: thick disc or spoke structure, mass is concentrated in the rim to increase the moment of inertia; The connection mode of the flywheel: connected with the motor shaft and the clutch through the keyway or flange, part of the flywheel integrates the clutch-brake system; The surface treatment of the flywheel: the rim may be designed with heat dissipation grooves or balance holes to reduce thermal deformation and vibration during high-speed rotation.
[0004] The utility model discloses a quick release flywheel for punch press, including flywheel body, installation shaft, nut, two groups of L type frame and two groups of screw rod, be equipped with a plurality of wheel holes on the flywheel body, the middle part of flywheel body is equipped with the shaft slot, installation shaft passes through the shaft slot, the front end of installation shaft is fixedly equipped with bolt, nut is connected with bolt thread, be equipped with a plurality of positioning holes on the nut, two groups of L type frame are fixedly installed at the front end of flywheel body, two groups of L type frame are equipped with a group of screw rings, two groups of screw rod are connected with two groups of screw rings thread, two groups of screw rod front ends are equipped with the twist piece, and two groups of screw rod back are equipped with a group of positioning rods respectively.
[0005] In the above-mentioned scheme, the flywheel is quickly disassembled by the buckle, but the flywheel is not disassembled frequently, and the flywheel and the motor shaft are fixed together for a long time, which can cause rust between the flywheel and the motor shaft, and the flywheel cannot be directly disassembled from the motor shaft, and auxiliary disassembly such as lubricating oil and wd40 rust remover is often needed, and the existing flywheel lacks a structure that can efficiently lubricate the part between the flywheel and the motor shaft, and cannot achieve quick disassembly after rusting.
[0006] Therefore, a new scheme needs to be proposed to solve this problem. Utility model content
[0007] In view of the defects in the prior art, the utility model aims at providing a quick release flywheel for punch press.
[0008] The utility model discloses a technical purpose above is realized through following technical scheme: a punch is with quick detach flywheel, including flywheel main part, the centre of flywheel main part is equipped with motor shaft sleeve, the centre of motor shaft sleeve is equipped with shaft hole, the end surface of motor shaft sleeve is equipped with oil injection hole, the inner wall of shaft hole is equipped with shaft oil channel, and oil injection hole and shaft oil channel are communicated.
[0009] The utility model further sets up: the main flow channel that is provided along its length direction is equipped in the motor shaft sleeve, oil injection hole connects main flow channel, still be equipped with a plurality of radial distribution branch flow channel in the motor shaft sleeve, branch flow channel connects main flow channel and shaft oil channel, a plurality of branch flow channel evenly interval setting along the length direction of motor shaft sleeve.
[0010] The utility model further sets up: shaft oil channel is in the form of grid and is distributed on the inner wall of shaft hole.
[0011] The utility model further sets up: oil injection hole is in the form of inclination, and the outside opening of oil injection hole is far away from the centre of shaft hole.
[0012] The utility model further sets up: one end of main flow channel is communicated with the end surface of motor shaft sleeve far from oil injection hole.
[0013] The utility model further sets up: the one end surface of motor shaft sleeve is welded with closed ring, and is equipped with the plug for embedding main flow channel on closed ring.
[0014] Summarized above, the utility model has following beneficial effect: when needing to detach flywheel, directly to the shaft oil channel of shaft hole inner wall through oil injection hole and supply oil, and lubricating oil evenly covers the shaft hole inner wall through shaft oil channel, can effectively lubricate the position between motor shaft and shaft hole, thereby can quickly detach flywheel, when the problem of rust appears between flywheel and motor shaft, also can inject rust remover to the shaft oil channel of shaft hole inner wall through oil injection hole, and the flywheel of convenient and quick detachment. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the structural schematic diagram of the utility model;
[0016] Figure 2 It is the section of the utility model Figure 1 ;
[0017] Figure 3 It is the section of the utility model Figure 2 .
[0018] In the drawing: 1, flywheel main part;2, motor shaft sleeve;3, shaft hole;4, oil injection hole;5, shaft oil channel;6, main flow channel;7, branch flow channel;8, closed ring;9, plug. DETAILED DESCRIPTION
[0019] The utility model will be described in detail below in combination with the drawings and examples. Examples
[0020] A kind of quick-release flywheel for punch, as shown in Figures 1-3 Including flywheel main body 1, flywheel main body 1 adopts cast steel quality, with high strength, impact resistance, for large tonnage punch or high frequency operation, flywheel main body 1 is integrally formed with motor shaft sleeve 2 in the center, the central of motor shaft sleeve 2 is equipped with shaft hole 3, the edge of shaft hole 3 is equipped with key groove for key connection with motor shaft, the end surface of motor shaft sleeve 2 is equipped with oil injection hole 4, the inner wall of shaft hole 3 is equipped with shaft oil channel 5, oil injection hole 4 and shaft oil channel 5 are communicated, when flywheel needs to be disassembled, oil is supplied directly to the shaft oil channel 5 of the inner wall of shaft hole 3 through oil injection hole 4, lubricating oil evenly covers the inner wall of shaft hole 3 through shaft oil channel 5, can effectively lubricate the part between motor shaft and shaft hole 3, so that flywheel can be quickly disassembled, when rust problem appears between flywheel and motor shaft, rust remover can also be injected into the shaft oil channel 5 of the inner wall of shaft hole 3 through oil injection hole 4, to facilitate quick disassembly of flywheel.
[0021] As shown in Figures 2-3 The main flow channel 6 is formed by drilling in the motor shaft sleeve 2 and is arranged along the length direction of the motor shaft sleeve 2, and the oil injection hole 4 is connected to the main flow channel 6. The motor shaft sleeve 2 is further provided with a plurality of branch flow channels 7 arranged along the radial direction of the motor shaft sleeve 2, and the branch flow channels 7 are connected to the main flow channel 6 and the shaft oil channel 5. The plurality of branch flow channels 7 are evenly and spacedly arranged along the length direction of the motor shaft sleeve 2. The main flow channel 6 delivers lubricating oil to each branch flow channel 7, so as to ensure that each section of the inner wall of the shaft hole 3 is covered with an oil film. The branch flow channels 7 are evenly distributed along the axial direction, so as to avoid insufficient lubrication in local areas and make the flywheel more easily disassembled.
[0022] Further, as shown in Figures 2-3 One end of the main flow channel 6 is communicated with an end surface of the motor shaft sleeve 2 away from the oil injection hole 4. The main flow channel 6 is formed by drilling from the end surface of the shaft sleeve, so as to avoid technical difficulty of opening a deep hole from the side and facilitate cleaning and maintenance. The opening end surface of the main flow channel 6 can be directly communicated with the outside, so as to facilitate flushing of residual oil stains or metal chips after processing. Furthermore, one end surface of the motor shaft sleeve 2 is welded with a closing ring 8, and the closing ring 8 is provided with a plug 9 embedded in the main flow channel 6. The plug 9 closes the outlet of the main flow channel 6, so as to prevent lubricating oil from leaking out of the end surface and causing waste or pollution. Furthermore, the plug 9 can enhance the structural integrity. The plug 9 supports the inner wall of the main flow channel 6, and the closing ring 8 is welded to reinforce the end portion of the shaft sleeve, so as to reduce the risk of deformation under high-speed rotation.
[0023] As shown in Figures 2-3 The oil injection hole 4 is obliquely arranged, and the opening on the outer side is away from the center of the shaft hole 3. The oblique hole channel guides the flow direction of lubricating oil to the inner wall of the shaft hole 3, so as to avoid oil spillage and pollution of equipment during oil injection, facilitate alignment of an oil gun or an oil injector, and improve operation convenience.
[0024] AsFigures 2-3 As shown, the shaft lubricating oil channels 5 are distributed in a grid shape on the inner wall of the shaft hole 3, the grid-shaped shaft lubricating oil channels 5 can make the lubricating oil uniformly dispersed between the motor shaft and the shaft hole 3, and form oil storage micro-grooves, the lubricating oil is more likely to be retained and form a continuous oil film, so that the flywheel is more quickly and easily disassembled.
[0025] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solutions falling within the idea of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principles of the present application, these improvements and decorations shall also be considered as the protection scope of the present application.
Claims
1. A quick-release flywheel for a punch press, comprising a flywheel body (1), wherein a motor bushing (2) is provided at the center of the flywheel body (1), and a shaft hole (3) is provided at the center of the motor bushing (2), characterized in that: The end face of the motor bushing (2) is provided with an oil injection hole (4), and the inner wall of the shaft hole (3) is provided with a lubrication oil passage (5). The oil injection hole (4) and the lubrication oil passage (5) are connected.
2. The quick-release flywheel for a punch press according to claim 1, characterized in that: The motor bushing (2) is provided with a main channel (6) arranged along its length direction. The oil injection hole (4) is connected to the main channel (6). The motor bushing (2) is also provided with a plurality of branch channels (7) arranged along its radial direction. The branch channels (7) are connected to the main channel (6) and the lubrication oil channel (5). The plurality of branch channels (7) are evenly spaced along the length direction of the motor bushing (2).
3. The quick-release flywheel for a punch press according to claim 1, characterized in that: The lubricating oil passages (5) are distributed in a grid pattern on the inner wall of the shaft hole (3).
4. The quick-release flywheel for a punch press according to claim 1, characterized in that: The oil injection hole (4) is inclined, and the outer opening of the oil injection hole (4) is far away from the center of the shaft hole (3).
5. The quick-release flywheel for a punch press according to claim 2, characterized in that: One end of the main channel (6) is connected to the end face of the motor bushing (2) away from the oil injection hole (4).
6. The quick-release flywheel for a punch press according to claim 5, characterized in that: A closed ring (8) is welded to one end face of the motor bushing (2), and a plug (9) for embedding into the main channel (6) is provided on the closed ring (8).
Citation Information
Patent Citations
Buckle quick-release flywheel for punch press
CN216618409U