Blade capable of being replaced quickly

Abstract

The utility model provides a blade capable of being replaced quickly, and belongs to the technical field of blades. The cutter head solves the problem that time and labor are wasted when an existing cutter head clamps and replaces cutters. The blade capable of being quickly replaced comprises a cutter head and a transmission shaft, a plurality of blades are arranged on the cutter head, a fixing part is fixedly arranged on the cutter head, a positioning assembly used for fixing the blades on the cutter head is arranged on the fixing part, and an installation space for installing the upper ends of the blades is formed between the fixing part and the cutter head. The positioning assembly is composed of a positioning rod, a sliding part and a reset spring, a positioning hole matched with the positioning rod is formed in the blade, a movable groove is formed in the fixing part, a fixing rod is fixedly arranged on the cutter head, and a fixing hole is formed in the lower end of the blade. The utility model has the advantage of high stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of blades and relates to a blade, in particular to a blade that can be quickly replaced. Background Art

[0002] At present, when clamping and replacing tools on the cutter disc used for milling processing, it is necessary to clamp the tools one by one, remove the fastening bolts, install the tools, and then reinstall the fastening bolts to complete the clamping of the tools on the milling cutter disc, which is time-consuming and laborious. Summary of the invention

[0003] The purpose of the utility model is to provide a blade with high stability and quick replaceability in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a quickly replaceable blade, comprising a blade disc and a transmission shaft, characterized in that a plurality of blades are arranged on the blade disc, a fixing portion is fixedly arranged on the blade disc, the fixing portion and the blade disc are an integrally formed structure, a positioning component for fixing the blade on the blade disc is arranged on the fixing portion, the blade as a whole is arranged in an L-shaped structure, an installation space for installing the upper end of the blade is provided between the fixing portion and the blade disc, the positioning component consists of a positioning rod, a sliding portion and a reset spring, a positioning hole matching the positioning rod is provided on the blade, a movable groove is provided on the fixing portion, the reset spring and the sliding portion are both arranged in the movable groove, and the sliding portion slides in the movable groove under the action of the reset spring, a fixing rod for fixing the lower end of the blade is fixedly arranged on the blade disc, and a fixing hole matching the fixing rod is provided on the lower end of the blade.

[0005] In the above-mentioned quickly replaceable blade, one end of the positioning rod extends out of the fixed part and is connected to an external rod for an operator to operate, the sliding rod is fixed on the positioning rod, and the reset spring is arranged between the positioning rod and the bottom wall of the movable groove. The positioning rod and the positioning hole of the blade are controlled by the reset spring to be positioned and separated.

[0006] In the above-mentioned quickly replaceable blade, there are two positioning components on the fixing portion.

[0007] In the above-mentioned quickly replaceable blade, there are two blades, and the blade disc is provided with two slots for installing the blades respectively.

[0008] Compared with the prior art, the quick-replaceable blade is configured to clamp the cutter disc in the installation space of the fixed portion, and then fix and disassemble the blade as a whole through a positioning assembly. This structural method makes it easy for operators to replace and repair the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0011] In the figure, 1, cutter disc; 2, transmission shaft; 3, blade; 4, fixing part; 5, positioning assembly; 6, positioning rod; 7, sliding part; 8, return spring; 9, movable groove; 10, fixing rod; 11, external rod; 12, slot. DETAILED DESCRIPTION

[0012] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0013] like Figure 1 , Figure 2 As shown, the quickly replaceable blade 3 includes a cutter disc 1 and a transmission shaft 2, a plurality of blades 3 are arranged on the cutter disc 1, a fixing portion 4 is fixedly arranged on the cutter disc 1, the fixing portion 4 and the cutter disc 1 are integrally formed structures, a positioning assembly 5 for fixing the blade 3 on the cutter disc 1 is arranged on the fixing portion 4, the blade 3 is arranged in an L-shaped structure as a whole, and there is an installation space for installing the upper end of the blade 3 between the fixing portion 4 and the cutter disc 1, the positioning assembly 5 is composed of a positioning rod 6, a sliding portion 7 and a reset spring 8, a positioning hole matching the positioning rod 6 is provided on the blade 3, a movable groove 9 is provided on the fixing portion 4, the reset spring 8 and the sliding portion 7 are both arranged in the movable groove 9, and the sliding portion 7 slides in the movable groove 9 under the action of the reset spring 8, a fixing rod 10 for fixing the lower end of the blade 3 is fixedly arranged on the cutter disc 1, and a fixing hole matching the fixing rod 10 is provided on the lower end of the blade 3.

[0014] To further explain, one end of the positioning rod 6 extends out of the fixed part 4 and is connected to an external rod 11 for the operator to operate. The sliding rod is fixed on the positioning rod 6. The reset spring 8 is arranged between the positioning rod 6 and the bottom wall of the movable groove 9. The positioning rod 6 and the positioning hole of the blade 3 are controlled by the reset spring 8 to be positioned and separated.

[0015] To explain in further detail, when the blade 3 needs to be installed, the external rod 11 extending outward is pulled, the return spring 8 is compressed, and the positioning rod 6 moves upward, so that the upper end of the blade 3 can correspond to the installation space, and the fixing hole at the lower end of the blade 3 cooperates with the fixing rod 10 of the cutter disc 1. When the blade 3 is installed, the external rod 11 is released, the return spring 8 rebounds, the positioning rod 6 moves downward, and the positioning rod 6 passes through the positioning hole of the blade 3 to fix the blade 3 on the cutter disc 1. When the blade 3 needs to be disassembled, the external rod 11 extending outward is pulled, the return spring 8 is compressed, and the positioning rod 6 moves upward, so that the blade 3 can be removed and replaced from the cutter disc 1.

[0016] In further detail, there are two positioning components 5 on the fixing portion 4. The multiple positioning components 5 enhance the positioning effect of the blade 3 fixed on the blade disc 1.

[0017] To be more specific, there are two blades 3, and the blade disc 1 is provided with two slots 12 for installing the blades 3 respectively.

[0018] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0019] Although the terms such as the cutter head 1, transmission shaft 2, blade 3, fixing part 4, positioning assembly 5, positioning rod 6, sliding part 7, return spring 8, movable groove 9, fixing rod 10, external rod 11, slot 12, etc. are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A quickly replaceable blade, comprising a blade disc (1) and a transmission shaft (2), characterized in that: The blade disc (1) is provided with a plurality of blades (3), a fixing portion (4) is fixedly provided on the blade disc (1), the fixing portion (4) and the blade disc (1) are provided with an integrally formed structure, a positioning assembly (5) for fixing the blade (3) on the blade disc (1) is provided on the fixing portion (4), the blade (3) is provided with an L-shaped structure as a whole, an installation space for installing the upper end of the blade (3) is provided between the fixing portion (4) and the blade disc (1), and the positioning assembly (5) is composed of a positioning rod (6), a sliding portion (7) and a positioning rod (8). and a reset spring (8), the blade (3) is provided with a positioning hole matched with the positioning rod (6), the fixing portion (4) is provided with a movable groove (9), the reset spring (8) and the sliding portion (7) are both arranged in the movable groove (9), and the sliding portion (7) slides in the movable groove (9) under the action of the reset spring (8), the cutter disc (1) is fixedly provided with a fixing rod (10) for fixing the lower end of the blade (3), and the lower end of the blade (3) is provided with a fixing hole matched with the fixing rod (10).

2. A quickly replaceable blade according to claim 1, characterized in that: One end of the positioning rod (6) extends out of the fixing portion (4) and is externally connected to an external rod (11) for operation by an operator. The external rod (11) is fixedly arranged on the positioning rod (6). The return spring (8) is arranged between the positioning rod (6) and the bottom wall of the movable groove (9). The return spring (8) controls the positioning rod (6) and the positioning hole of the blade (3) to be positioned and separated.

3. The quickly replaceable blade according to claim 1, characterized in that: There are two positioning components (5) on the fixing portion (4).

4. The quickly replaceable blade according to claim 1, characterized in that: There are two blades (3), and the blade disc (1) is provided with two slots (12) for installing the blades (3) respectively.

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