A spindle assembly for a multi-blade saw cutter
By setting a coupling mechanism and a boss engagement in the spindle assembly of a multi-blade saw cutter, the gap between the spindle and the adjusting support is disengaged, simplifying saw blade installation and replacement, solving the problem of complex operation in the prior art, and improving the working efficiency of the cutting machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU DAFON MASCH COST LTD
- Filing Date
- 2026-05-25
- Publication Date
- 2026-07-03
AI Technical Summary
Existing multi-blade cutting machines require the main shaft to be removed when installing or replacing saw blades, which is complicated and reduces work efficiency.
By setting a coupling mechanism between the spindle and the adjusting support, the spindle and the adjusting support are allowed to disengage and form a gap, simplifying the installation and replacement process of the saw blade. The separation of the spindle and the coupling mechanism is achieved by using the abutting plane and the abutting block, and the connection stability is improved by the engagement of the boss and the keyway.
It improves the efficiency of saw blade replacement and installation, and enhances the working efficiency of the cutting machine.
Smart Images

Figure CN224444743U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of multi-blade cutting machines, specifically a spindle assembly for a multi-blade cutting machine. Background Technology
[0002] Currently, multi-blade cutting machines on the market require the main shaft for installing or replacing the saw blades to be removed, which is complicated and reduces the efficiency of the cutting machine. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this utility model provides a spindle assembly for a multi-blade cutting machine. By disengaging the spindle and an adjusting support on one side, a gap is created for installation, improving the efficiency of saw blade replacement and installation, thereby increasing the working efficiency of the cutting machine.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A spindle assembly for a multi-blade saw cutter includes a spindle, a coupling mechanism, and a support. The support is provided with a fixed support and an adjustable support. One end of the spindle is rotatably inserted into the fixed support. An adjustable shaft is axially movable within the adjustable support. The other end of the spindle and the adjustable shaft are connected via the coupling mechanism. The coupling mechanism includes a coupling, abutting plane, abutting block, and abutting groove. The abutting plane is formed on the spindle, the abutting groove is formed on the inner wall of the coupling, the abutting block is embedded in the abutting groove, and the abutting block and the abutting plane abut against each other. The coupling encloses the spindle and the adjustable shaft. The adjustable support includes an adjusting seat, an adjusting frame, a bearing seat, an adjusting rod, and an adjusting handle. The adjusting seat is fixedly installed on the support, the adjusting frame is fixedly installed on the adjusting seat, the bearing seat is movably inserted into the adjusting seat, the adjusting rod and the bearing seat are rotatably fixedly connected, the adjusting rod is movably inserted into the adjusting frame, and the adjusting handle and the adjusting rod are fixedly connected.
[0006] Furthermore, a first boss is formed at the end of the main shaft, and a second boss is formed at the end of the adjusting shaft, with the first boss and the second boss engaging and abutting each other.
[0007] Furthermore, a first keyway is formed on the adjusting shaft, and a second keyway is formed on the inner wall of the coupling; a connecting key is embedded between the first keyway and the second keyway.
[0008] Furthermore, the coupling is detachably provided with a pressure cap, and the abutment groove is formed on the pressure cap.
[0009] Furthermore, a convex ring is formed on the adjusting shaft, and the coupling is fixedly connected to the convex ring.
[0010] Furthermore, the adjusting shaft is rotatably and fixedly inserted into the bearing housing, and a bearing is installed between the adjusting shaft and the bearing housing.
[0011] Furthermore, the adjusting rod and the adjusting bracket are connected by a thread.
[0012] Furthermore, a cover plate is installed between the bearing housing and the adjusting rod, the cover plate is fixedly placed on the bearing housing, one end of the adjusting rod is rotatably and fixedly connected to the cover plate, and a bearing is installed between the adjusting rod and the cover plate.
[0013] Furthermore, a drive wheel is installed on one side of the main shaft end of the fixed support.
[0014] By adopting the above-described technical solution of this utility model, at least the following beneficial effects are achieved:
[0015] 1. By setting the abutting plane and the abutting block, when the saw blade needs to be replaced, after the coupling is loosened, the coupling mechanism can move along the main shaft axis, thereby disengaging from the main shaft. A gap is formed between the coupling mechanism and the end of the main shaft, which facilitates the installation and replacement of the saw blade, thereby improving the working efficiency of the cutting machine.
[0016] Second, the engagement of the first boss and the second boss can further improve the stability of the connection between the main shaft and the adjusting shaft.
[0017] Third, the adjusting shaft and the coupling achieve synchronous rotation through the constraint of the key and keyway, and the coupling is further constrained axially by fixing the coupling to the convex ring, thus achieving a stable connection between the adjusting shaft and the coupling.
[0018] Compared with the prior art, this utility model improves the efficiency of saw blade replacement and installation by disengaging the main shaft and the adjusting support on one side to form an installation gap, thereby improving the working efficiency of the cutting machine. Attached Figure Description
[0019] Figure 1 This utility model relates to a three-dimensional representation of the spindle assembly of a multi-blade cutting machine.
[0020] Figure 2 This is an exploded view of the spindle assembly of a multi-blade saw cutting machine according to the present invention;
[0021] Figure 3 This is a partial sectional view of the spindle assembly of a multi-blade cutting machine according to the present invention;
[0022] Figure 4 This is a cross-sectional view of the spindle assembly of a multi-blade cutting machine according to this utility model.
[0023] Figure label:
[0024] Main shaft 1; First boss 11; Drive wheel 12; Coupling mechanism 2;
[0025] Coupling 21; Abutting plane 22; Abutting block 23; Abutting groove 24;
[0026] Second keyway 211; pressure cover 212;
[0027] 3. Bracket; 4. Fixed support; 5. Adjustable support;
[0028] Adjusting seat 51; Adjusting bracket 52; Bearing seat 53;
[0029] Adjusting rod 54; Adjusting handle 55; Cover plate 56;
[0030] Adjustment shaft 6; second boss 61; first keyway 62; connecting key 63; convex ring 64. Detailed Implementation
[0031] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0032] Please see the appendix Figures 1 to 4As shown, this utility model provides a spindle assembly for a multi-blade saw cutter, including a spindle 1, a coupling mechanism 2, and a bracket 3. The bracket 3 is provided with a fixed support 4 and an adjusting support 5. One end of the spindle 1 is rotatably inserted into the fixed support 4. An adjusting shaft 6 is axially movable inside the adjusting support 5. The other end of the spindle 1 and the adjusting shaft 6 are connected through the coupling mechanism 2. The coupling mechanism 2 includes a coupling 21, abutting plane 22, abutting block 23, and abutting groove 24. The abutting plane 22 is formed on the spindle 1, the abutting groove 24 is formed on the inner wall of the coupling 21, the abutting block 23 is embedded in the abutting groove 24, and the abutting block 23 abuts against the abutting plane 22. The coupling 21 encloses the spindle 1 and the adjusting shaft 6. By setting the abutting plane 22 and the abutting block 23, when the saw blade needs to be replaced, after loosening the coupling 21, the coupling mechanism 2 can move axially along the main shaft 1, thereby disengaging from the main shaft 1. A gap is formed between the coupling mechanism 2 and the end of the main shaft 1. Thus, when installing the saw blade, multiple saw blades can be sequentially fitted side by side onto the main shaft 1 through the formed gap. The saw blades can be spaced apart by setting bushings of different widths. Therefore, both the saw blade and the bushing can be installed or removed through the gap formed between the coupling mechanism 2 and the end of the main shaft 1, which facilitates the installation and replacement of the saw blade and improves the working efficiency of the cutting machine.
[0033] Preferably, a first boss 11 is formed at the end of the main shaft 1, and a second boss 61 is formed at the end of the adjusting shaft 6. The first boss 11 and the second boss 61 are engaged and connected abutting each other. The engagement of the first boss 11 and the second boss 61 can further improve the stability of the connection between the main shaft 1 and the adjusting shaft 6.
[0034] Preferably, such as Figure 2 and Figure 3 As shown, a first keyway 62 is formed on the adjusting shaft 6, and a second keyway 211 is formed on the inner wall of the coupling 21; a connecting key 63 is embedded between the first keyway 62 and the second keyway 211. The adjusting shaft 6 and the coupling 21 achieve synchronous rotation through the constraint of the key and keyway. Additionally, a convex ring 64 is formed on the adjusting shaft 6, and the coupling 21 is fixedly connected to the convex ring 64. Furthermore, by fixing the coupling 21 to the convex ring 64, the axial constraint of the coupling 21 is achieved, thus realizing a stable connection between the adjusting shaft 6 and the coupling 21.
[0035] Preferably, the coupling 21 is detachably provided with a pressure cover 212, and the abutment groove 24 is formed on the pressure cover 212. The pressure cover 212 and the coupling are connected by screws. When it is necessary to replace or install the saw blade, simply tighten the screws to leave a gap between the abutment block 23 and the abutment plane 22, and the coupling 21 and the main shaft 1 can be separated, thus making it more convenient to install and remove the saw blade.
[0036] Preferably, such as Figure 3 and Figure 4 As shown, the adjusting support 5 includes an adjusting seat 51, an adjusting frame 52, a bearing seat 53, an adjusting rod 54, and an adjusting handle 55. The adjusting seat 51 is fixedly installed on the bracket 3, the adjusting frame 52 is fixedly installed on the adjusting seat 51, the bearing seat 53 is movably inserted into the adjusting seat 51, the adjusting rod 54 is rotatably and fixedly connected to the bearing seat 53, the adjusting rod 54 is movably inserted into the adjusting frame 52, and the adjusting handle 55 is fixedly connected to the adjusting rod 54. The adjusting shaft 6 is rotatably and fixedly inserted into the bearing seat 53, and a bearing is installed between the adjusting shaft 6 and the bearing seat 53. The adjusting rod 54 and the adjusting frame 52 are connected by a thread (not shown in the figure). A cover plate 56 is installed between the bearing seat 53 and the adjusting rod 54, and the cover plate 56 is fixedly covered on the bearing seat 53. One end of the adjusting rod 54 is rotatably and fixedly connected to the cover plate 56, and a bearing is installed between the adjusting rod 54 and the cover plate 56. The operator turns the adjusting handle 55, and the adjusting rod 54 moves axially, thereby driving the bearing seat 53 and the adjusting shaft 6 to move together, which can separate the coupling 21 and the main shaft 1 until a sufficient installation gap is generated between the coupling 21 and the end of the main shaft 1.
[0037] Preferably, a drive wheel 12 is mounted on one side of the main shaft 1. The power of the cutting machine is input from the drive wheel 12, then passes through the main shaft 1 and is transmitted to the saw blade.
[0038] Compared with the prior art, the present invention provides a spindle 1 assembly for a multi-blade cutting machine. By allowing the spindle 1 and the adjusting support 5 on one side to disengage from each other, a gap is formed for installation, which improves the efficiency of saw blade replacement and installation, thereby improving the working efficiency of the cutting machine.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A main shaft assembly of a multi-blade sawing machine, characterized in that, The system includes a main shaft, a coupling mechanism, and a support. The support is equipped with a fixed support and an adjusting support. One end of the main shaft is rotatably inserted into the fixed support. An adjusting shaft is axially movable within the adjusting support. The other end of the main shaft and the adjusting shaft are connected via the coupling mechanism. The coupling mechanism includes a coupling, abutting plane, abutting block, and abutting groove. The abutting plane is formed on the main shaft, the abutting groove is formed on the inner wall of the coupling, the abutting block is embedded in the abutting groove, and the abutting block and the abutting plane abut against each other. The coupling encloses the main shaft and the adjusting shaft. The adjusting support includes an adjusting seat, an adjusting frame, a bearing seat, an adjusting rod, and an adjusting handle. The adjusting seat is fixedly installed on the support, the adjusting frame is fixedly installed on the adjusting seat, the bearing seat is movably inserted into the adjusting seat, the adjusting rod and the bearing seat are rotatably and fixedly connected, the adjusting rod is movably inserted into the adjusting frame, and the adjusting handle and the adjusting rod are fixedly connected.
2. A spindle assembly for a multi-blade saw according to claim 1, wherein, The end of the main shaft has a first boss, and the end of the adjusting shaft has a second boss. The first boss and the second boss are fitted together and abutted against each other.
3. The arbor assembly of claim 1, wherein, A first keyway is formed on the adjusting shaft, and a second keyway is formed on the inner wall of the coupling; a connecting key is embedded between the first keyway and the second keyway.
4. The arbor assembly of claim 1, wherein, The coupling is detachably provided with a pressure cover, and the abutment groove is formed on the pressure cover.
5. The arbor assembly of claim 1, wherein, A convex ring is formed on the adjusting shaft, and the coupling is fixedly connected to the convex ring.
6. A spindle assembly for a multi-blade saw according to claim 1, wherein, The adjusting shaft is rotatably and fixedly inserted into the bearing housing, and a bearing is installed between the adjusting shaft and the bearing housing.
7. The arbor assembly of claim 1, wherein, The adjusting rod and the adjusting frame are connected by a thread.
8. The arbor assembly of claim 1, wherein, A cover plate is installed between the bearing housing and the adjusting rod. The cover plate is fixedly placed on the bearing housing. One end of the adjusting rod is rotatably and fixedly connected to the cover plate. A bearing is installed between the adjusting rod and the cover plate.
9. The arbor assembly of claim 1, wherein, A drive wheel is mounted on one side of the main shaft end of the fixed support.