Replaceable cutter shaft fastening screw

Abstract

The utility model relates to the technical field of longitudinal shearing equipment, and discloses a replaceable cutter shaft fastening screw which comprises a longitudinal shearing cutter shaft, longitudinal shearing blades distributed at equal intervals are installed on the longitudinal shearing cutter shaft, symmetrically-arranged installation rods are fixedly installed on the inner side walls of the longitudinal shearing blades, symmetrically-arranged installation grooves are formed in the two sides of the longitudinal shearing cutter shaft, and the longitudinal shearing cutter shaft and the longitudinal shearing cutter blades are fixedly installed on the longitudinal shearing cutter shaft. The mounting rods are arranged on the inner wall of the mounting groove, threaded fixing holes are formed in the middles of the mounting rods, fastening screws are arranged on the inner walls of the threaded fixing holes in a threaded connection mode, hexagonal screw heads are fixedly arranged at the end positions of the fastening screws, and the hexagonal screw heads are welded to the inner side of the mounting groove. A new fastening screw is installed in the threaded fixing hole, the fastening screw can be replaced conveniently and quickly under the condition that the longitudinal scissor shaft is not disassembled, only the fastening screw needs to be replaced every time, the longitudinal scissor shaft does not need to be disassembled to repair a machine tool, production cost is reduced, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to longitudinal shearing equipment technical field, concretely relates to a replaceable knife shaft fastening screw. BACKGROUND

[0002] The main role of longitudinal shearing knife shaft is to support and drive blade to carry out shearing operation, in longitudinal shearing equipment, knife shaft is core component, is usually supported by high-precision bearing, can rotate at high speed, a plurality of blades are installed on the knife shaft, these blades can carry out shearing to metal material when rotating, so that the strip of required width is obtained. The fastening screw of the knife shaft blade of traditional longitudinal shearing equipment often appears damage due to the frequent replacement of blade, the process of disassembling and repairing fastening screw is complicated, needs to disassemble the knife shaft to carry out machine tool repair, and the production cost is higher.

[0003] Therefore, the utility model discloses a replaceable knife shaft fastening screw to solve the above problems. CONTENT OF UTILITY MODEL

[0004] To solve the problem that the fastening screw of the knife shaft blade of traditional longitudinal shearing equipment often appears damage due to the frequent replacement of blade, the process of disassembling and repairing fastening screw is complicated, needs to disassemble the knife shaft to carry out machine tool repair, and the production cost is higher, the basic thought of technical scheme adopted by the utility model is:

[0005] A replaceable knife shaft fastening screw, including longitudinal shearing knife shaft, the longitudinal shearing knife shaft is installed with equidistance distribution's longitudinal shearing blade, the inside wall fixed mounting of longitudinal shearing blade is installed with the installation rod of symmetrical setting, the both sides of longitudinal shearing knife shaft are seted up with the installation groove of symmetrical setting, the installation rod is seted up on the inner wall of installation groove, the middle part of installation rod is seted up with the thread fixing hole, the inner wall of thread fixing hole is seted up with the fastening screw of screw joint, the end position of fastening screw is fixed with the hexagonal screw head, and the hexagonal screw head is welded in the inside of installation groove.

[0006] As a preferred embodiment of the utility model, the inside of installation groove is fixed with the limiting block of symmetrical setting, and the end position of installation rod is in contact with the outer wall of one side of limiting block.

[0007] As a preferred embodiment of the utility model, the end position of fastening screw is screwed with the fastening nut, and the fastening nut is in contact with the outer wall of the end of installation rod.

[0008] As a preferred embodiment of the utility model, the limiting block of symmetrical installation in the inside of installation groove is seted up on the both sides of fastening nut.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The utility model discloses, when fastening screw appears damage, to fastening nut and hexagonal screw head are dismantled, after dismantling is completed, through hexagonal screw head rotation fastening screw, until fastening screw is completely removed from the thread fixing hole, thereby realizes the dismantling of fastening screw, then can install new fastening screw in the thread fixing hole, it is convenient to change fastening screw under not dismantling longitudinal shear cutter shaft, convenient and fast, only needs to change fastening screw each time, need not dismantle longitudinal shear cutter shaft and carry out machine tool's repair, be favorable to reduce production cost, improve production efficiency, reduce maintenance cost.

[0011] The utility model discloses a specific implementation mode will be further detailed below in conjunction with the drawing. DRAWINGS

[0012] In the drawings:

[0013] Figure 1 It is the whole structure schematic diagram of the utility model;

[0014] Figure 2 It is the side view structure schematic diagram of the utility model;

[0015] Figure 3 It is the utility model Figure 2 The enlarged structure schematic diagram of A place in;

[0016] Figure 4 It is the connecting structure schematic diagram of longitudinal shear blade and installation rod of the utility model;

[0017] Figure 5 It is the installation rod sectional structure schematic diagram of the utility model;

[0018] Figure 6 It is the installation rod side view sectional structure schematic diagram of the utility model.

[0019] In the drawing: 1, longitudinal shear cutter shaft;2, longitudinal shear blade;3, installation groove;4, installation rod;5, fastening screw;6, hexagonal screw head;7, limit block;8, fastening nut;9, thread fixing hole. PREFERRED EMBODIMENT

[0020] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, below will combine the drawing in the utility model embodiment, to the technical scheme in the embodiment, clear, complete description, following embodiment is used to explain the utility model.

[0021] As Figures 1 to 6 Indicated

[0022] The utility model provides a replaceable cutter shaft fastening screw, including longitudinal shear cutter axle 1, the equidistance distribution longitudinal shear blade 2 of installation is arranged on longitudinal shear cutter axle 1, the inside wall fixed mounting of longitudinal shear blade 2 is provided with the symmetrical installation rod 4, longitudinal shear cutter axle 1 both sides are provided with the symmetrical installation groove 3 of installation, and installation rod 4 sets up on the inner wall of installation groove 3, the middle part of installation rod 4 is provided with the thread fixing hole 9, and the inner wall of thread fixing hole 9 is provided with the fastening screw 5 of screw joint, and the end position of fastening screw 5 is fixedly provided with hexagonal screw head 6, and hexagonal screw head 6 is welded in the inside of installation groove 3, and the end position of fastening screw 5 is screwed with fastening nut 8, and fastening nut 8 is contacted with the end outer wall of installation rod 4, when fastening screw 5 appears damage, fastening nut 8 is rotated and is screwed out from the end position of fastening screw 5, after the dismounting of fastening nut 8 is completed, hexagonal screw head 6 is disassembled through hot cutting method, the welding position between hexagonal screw head 6 and installation groove 3 is melted by high temperature, so that the separation between hexagonal screw head 6 and installation groove 3 is realized, when hexagonal screw head 6 is disassembled, fastening screw 5 is rotated through hexagonal screw head 6, until fastening screw 5 is completely removed from thread fixing hole 9, so that the dismounting of fastening screw 5 is realized, then new fastening screw 5 can be installed in thread fixing hole 9, it is convenient to replace fastening screw 5 without disassembling longitudinal shear cutter axle 1, it is convenient and fast, and production efficiency is improved.

[0023] In the specific embodiment, the inside of installation groove 3 is fixedly provided with the symmetrical limiting block 7, the end position of installation rod 4 is contacted with the one side outer wall of limiting block 7, the limiting block 7 symmetrically installed in the inside of installation groove 3 is arranged at the both sides of fastening nut 8, when installing longitudinal shear blade 2, installation rod 4 is slid along the inner wall of installation groove 3, so that longitudinal shear blade 2 is moved and is sleeved on longitudinal shear cutter axle 1, until the end position of installation rod 4 is moved and is contacted with limiting block 7, then fastening screw 5 is screwed into thread fixing hole 9, so that fastening screw 5 passes through thread fixing hole 9, then fastening nut 8 is screwed at the end position of fastening screw 5, so that fastening nut 8 is contacted with the end outer wall of installation rod 4, when fastening nut 8 is installed, hexagonal screw head 6 at the end position of fastening screw 5 is welded in installation groove 3, realizes the fixed effect of fastening screw 5, so that installation rod 4 plays the fixed effect, the fixed installation of longitudinal shear blade 2 is completed, so that longitudinal shear blade 2 can be stably installed on longitudinal shear cutter axle 1.

[0024] The implementation principle of the replaceable cutter shaft fastening screw of the embodiment is as follows:

[0025] When installing the longitudinal shearing blade 2, the mounting rod 4 is slid along the inner wall of the mounting groove 3, so that the longitudinal shearing blade 2 is moved to be sleeved on the longitudinal shearing shaft 1 until the end position of the mounting rod 4 is in contact with the limiting block 7, then the fastening screw rod 5 is screwed into the threaded fixing hole 9, so that the fastening screw rod 5 passes through the threaded fixing hole 9, then the fastening nut 8 is screwed on the end position of the fastening screw rod 5, so that the fastening nut 8 is in contact with the outer wall of the end position of the mounting rod 4, when the fastening nut 8 is installed, the hexagonal screw head 6 at the end position of the fastening screw rod 5 is welded in the mounting groove 3, so as to fix the fastening screw rod 5, thereby fixing the mounting rod 4, completing the fixed installation of the longitudinal shearing blade 2, so that the longitudinal shearing blade 2 can be stably installed on the longitudinal shearing shaft 1, when the fastening screw rod 5 is damaged, the fastening nut 8 is rotated and unscrewed from the end position of the fastening screw rod 5, after the fastening nut 8 is disassembled, the hexagonal screw head 6 is disassembled by heat cutting, the welding position between the hexagonal screw head 6 and the mounting groove 3 is melted by high temperature, so as to realize the separation between the hexagonal screw head 6 and the mounting groove 3, after the hexagonal screw head 6 is disassembled, the fastening screw rod 5 is rotated through the hexagonal screw head 6, until the fastening screw rod 5 is completely removed from the threaded fixing hole 9, so as to disassemble the fastening screw rod 5, then a new fastening screw rod 5 can be installed in the threaded fixing hole 9, which is convenient for replacing the fastening screw rod 5 without disassembling the longitudinal shearing shaft 1, which is convenient and fast, and improves the production efficiency.

[0026] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0027] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0028] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A replaceable arbor fastening screw comprising a longitudinal shear arbor (1), characterized in that, The longitudinal shear shaft (1) is provided with equidistantly distributed longitudinal shear blades (2), the inner side wall of the longitudinal shear blade (2) is fixedly provided with symmetrically arranged mounting rods (4), symmetrically arranged mounting grooves (3) are formed on both sides of the longitudinal shear shaft (1), the mounting rod (4) is arranged on the inner wall of the mounting groove (3), a threaded fixing hole (9) is formed in the middle of the mounting rod (4), a fastening screw rod (5) is screw-connected to the inner wall of the threaded fixing hole (9), a hexagonal screw rod head (6) is fixedly arranged at the end of the fastening screw rod (5), and the hexagonal screw rod head (6) is welded to the inner side of the mounting groove (3).

2. The replaceable arbor fastening screw according to claim 1, wherein The inner side of the mounting groove (3) is fixedly provided with symmetrically arranged limiting blocks (7), and the end of the mounting rod (4) is in contact with one side of the outer wall of the limiting block (7).

3. The replaceable arbor fastening screw according to claim 1, wherein The end of the fastening screw rod (5) is screw-connected with a fastening nut (8), and the fastening nut (8) is in contact with the outer wall of the end of the mounting rod (4).

4. The replaceable arbor fastening screw according to claim 3, wherein The symmetrically arranged limiting blocks (7) in the mounting groove (3) are arranged on both sides of the fastening nut (8).

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