Peripherally-driven trephine structure

Abstract

The utility model discloses a periphery-driven trephine structure, which relates to the field of cutters and comprises a blade, the blade is annularly arranged, a driving wheel which abuts against the inner ring of the blade is arranged on the inner ring of the blade, and an annular abutting groove which surrounds the driving wheel is formed on the periphery of the driving wheel. The inner ring of the blade abuts against the inner wall of the annular abutting groove. According to the peripheral driving trephine structure, through the peripheral driving design, the cutting depth of the blades is expanded to the full-diameter range, compared with a traditional center driving structure, the cutting depth is increased, deeper cutting can be completed in one-time operation, the machining time is greatly shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the cutter field especially relates to a peripheral drive's ring saw structure. BACKGROUND

[0002] The current building cutting field widely adopts the center drive's ring saw structure, and it drives the blade to carry out cutting operation through the cutter wheel shaft. Although the center drive system has the modular design, the maintenance is convenient and the like advantages, but there are following significant defects in the practical application:

[0003] 1, the machining precision is limited: the center drive blade causes the installation deviation due to the mechanical tolerance accumulation, and the vibration is caused by uneven cutting force distribution, and it is difficult to meet the high-precision machining demand;

[0004] 2, low heat dissipation efficiency: the blade is easy to produce high temperature when high speed operation, accelerates the wear and reduces the service life, and the cutting depth is only half of the blade diameter, influences the operation efficiency. UTILITY MODEL CONTENTS

[0005] In order to make up for the lack of prior art problems, the utility model aims at providing a peripheral drive's ring saw structure, solves the problems that the existing blade cutting is unstable and easy to produce deviation and the cutting depth is limited.

[0006] In order to solve the prior art problems, the technical scheme of the utility model is as follows:

[0007] A peripheral drive's ring saw structure, including the blade, the blade is arranged in a ring, the inner circle of the blade is provided with the driving wheel that is tightly contacted with the inner circle of the blade, and two groups of side edge support assemblies are symmetrically arranged on the side of the blade close to the driving wheel, the side edge support assembly is tightly contacted with the blade on the side edge of the blade, and the direction of the tightly contacted force provided by the side edge support assembly to the blade is oppositely arranged with the direction of the tightly contacted force provided by the driving wheel to the blade.

[0008] Preferably, the outer periphery of the driving wheel is formed with annular tightly contacted groove around the driving wheel, and the inner circle of the blade is tightly contacted with the inner wall of the annular tightly contacted groove.

[0009] Preferably, the cross section of the annular tightly contacted groove is V-shaped, and the cross section of the inner circle of the blade is also V-shaped, and the two angle faces of the inner circle of the blade are tightly contacted with the two angle faces of the annular tightly contacted groove respectively.

[0010] Preferably, the side edge support assembly is composed of the engaging roller and the supporting roller arranged on the two sides of the blade respectively, the engaging roller and the supporting roller are in position opposite, the outer periphery of the engaging roller is formed with annular protrusion, the side of the blade close to the engaging roller is formed with annular recess, the annular protrusion is nested in the annular recess, and the outer periphery of the supporting roller is tightly contacted with the outer wall of the blade, and the supporting roller and the engaging roller support the blade between them.

[0011] Preferably, the shaft line of the engaging roller is sleeved with a connecting shaft, the engaging roller can slide and rotate outside the connecting shaft, the outer wall of the connecting shaft is sleeved with a spring, and a knob is threadedly connected to the end of the connecting shaft away from the engaging roller, and the spring provides the pressure of the engaging roller to the shaft line of the blade.

[0012] Preferably, the shaft line of the engaging roller and the shaft line of the supporting roller are vertically arranged with the shaft line of the blade.

[0013] Preferably, the cutting depth of the blade is the full diameter range.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. Through the peripheral driving design, the cutting depth of the blade is extended to the full diameter range, which is improved compared with the traditional center driving structure, can complete deeper cutting in single operation, greatly shortens the processing time and improves the production efficiency;

[0016] The three-point positioning structure formed by the engaging roller, the supporting roller and the driving wheel effectively eliminates the radial and axial gaps of the blade, avoids the cutting deviation caused by vibration, cuts more stably, the V-shaped annular abutting groove joint design realizes uniform stress of the whole circumferential surface, reduces the uneven distribution of cutting force, ensures that the cutting surface has high flatness and few burrs, and meets the high-precision machining demand;

[0017] 2. The peripheral driving mode combines the open structure on both sides of the blade, enhances the air flow and cooling liquid penetration efficiency, significantly reduces the working temperature of the blade, and reduces the deformation or wear caused by high temperature;

[0018] 3. The optimized cutting force transmission path (through the V-shaped annular abutting groove and the three-point positioning) enables the blade to withstand higher cutting load, can stably process high-hardness or high-toughness materials such as hardened steel and titanium alloy, and breaks through the material limitation of the traditional center-driven blade. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is the overall structure schematic view of the utility model.

[0020] Fig. 2 It is the supporting roller structure schematic view of the utility model.

[0021] Fig. 3 It is the annular abutting groove structure schematic view of the utility model.

[0022] Fig. 1 is a blade; 2 is a driving wheel; 3 is an annular abutting groove; 4 is an engaging roller; 5 is a supporting roller; 6 is an annular protrusion; 7 is an annular recess; 8 is a connecting shaft; 9 is a spring; 10 is a knob. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely part of the embodiments of the present application, rather than all the embodiments.

[0024] Please refer to Figs. 1 to 3 The embodiment provides a peripheral driving ring saw structure, which comprises a blade 1, the blade 1 is arranged in a ring shape, a driving wheel 2 is arranged on the inner circle of the blade 1 and abuts against the inner circle of the blade 1, an annular abutting groove 3 is formed on the outer periphery of the driving wheel 2 and surrounds the driving wheel 2, the inner circle of the blade 1 abuts against the inner wall of the annular abutting groove 3, the cross section of the annular abutting groove 3 is arranged in a V shape, the cross section of the inner circle of the blade 1 is also arranged in a V shape, the two angle faces of the inner circle of the blade 1 abut against the two angle faces of the annular abutting groove 3 respectively, the V-shaped annular abutting groove 3 and the V-shaped cross section of the inner circle of the blade 1 form full circumferential surface contact, so that the cutting force is uniformly distributed between the driving wheel 2 and the blade 1, local stress concentration is avoided, vibration and cutting deviation are significantly reduced, and the flatness of the cutting surface is ensured.

[0025] The two sides of the blade 1 are respectively provided with a joint roller 4 and a supporting roller 5, the joint roller 4 and the supporting roller 5 are opposite to each other in position, the axis of the joint roller 4 and the axis of the supporting roller 5 are perpendicular to the axis of the blade 1, an annular protrusion 6 is formed on the outer periphery of the joint roller 4, an annular recess 7 is formed on the side of the blade 1 close to the joint roller 4, the annular protrusion 6 is nested in the annular recess 7, and the outer periphery of the supporting roller 5 abuts against the outer wall of the blade 1. The supporting roller 5 and the joint roller 4 support the blade 1 between them, the cutting depth of the blade 1 is the full diameter range, the two groups of supporting rollers 5, joint rollers 4 and driving wheels 2 constitute three-point clamping for the blade 1, the radial and axial clearances of the blade 1 are eliminated, cutting vibration is effectively suppressed, the blade 1 can bear higher cutting load, the peripheral driving mode is combined with the open structure on the two sides of the blade 1, air flow and cooling liquid penetration efficiency are enhanced, the working temperature of the blade 1 is significantly reduced, deformation or wear caused by high temperature is reduced, and the cutting depth is greatly improved.

[0026] A connecting shaft 8 is sleeved at the axis of the joint roller 4, the joint roller 4 can slide and rotate outside the connecting shaft 8, a spring 9 is sleeved on the outer wall of the connecting shaft 8, a knob 10 is threadedly connected to the end of the connecting shaft 8 away from the joint roller 4, the spring 9 provides pressure for pressing the blade 1 along the axis of the connecting shaft 8 to the axis of the blade 1, the pre-tightening force of the spring 9 is adjustable, the knob 10 is rotated, the spring 9 is compressed, the spring 9 pushes the joint roller 4 back, and the annular protrusion 6 on the outer circle of the joint roller 4 abuts against the annular recess 7.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A peripherally driven ring saw arrangement comprising a blade (1), characterized in that, The blade (1) is arranged in a ring shape, the inner ring of the blade (1) is provided with a driving wheel (2) abutting against the inner ring of the blade (1), two groups of side edge supporting assemblies are symmetrically arranged on the side of the blade (1) close to the driving wheel (2), the side edge supporting assemblies abut against the blade (1) on the side edge of the blade (1), and the abutting force provided by the side edge supporting assemblies to the blade (1) is arranged opposite to the abutting force provided by the driving wheel (2) to the blade (1).

2. A peripherally-driven ring saw arrangement according to claim 1, characterized in that The outer periphery of the driving wheel (2) is formed with a ring-shaped abutting groove (3) surrounding the driving wheel (2), and the inner ring of the blade (1) abuts against the inner wall of the ring-shaped abutting groove (3).

3. A peripherally-driven ring saw arrangement according to claim 2, characterised in that, The cross section of the ring-shaped abutting groove (3) is arranged in a V shape, the cross section of the inner ring of the blade (1) is also arranged in a V shape, and the two included angle surfaces of the inner ring of the blade (1) abut against the two included angle surfaces of the ring-shaped abutting groove (3) respectively.

4. A peripherally-driven ring saw arrangement according to claim 1, characterized in that The side edge supporting assembly is composed of an engaging roller (4) and a supporting roller (5) arranged on the two sides of the blade (1) respectively, the engaging roller (4) and the supporting roller (5) are in a position opposite to each other, the outer periphery of the engaging roller (4) is formed with a ring-shaped protrusion (6), the side of the blade (1) close to the engaging roller (4) is formed with a ring-shaped recess (7), the ring-shaped protrusion (6) is nested in the ring-shaped recess (7), the outer periphery of the supporting roller (5) abuts against the outer wall of the blade (1), and the supporting roller (5) and the engaging roller (4) support the blade (1) between them.

5. A peripherally-driven ring saw arrangement according to claim 4, characterised in that, The axis of the engaging roller (4) is sleeved with a connecting shaft (8), the engaging roller (4) can slide and rotate outside the connecting shaft (8), the outer wall of the connecting shaft (8) is sleeved with a spring (9), one end of the connecting shaft (8) away from the engaging roller (4) is threadedly connected with a knob (10), and the spring (9) provides a pressure for pressing the blade (1) along the axial direction of the connecting shaft (8) to the axis of the blade (1).

6. A peripherally-driven ring saw arrangement according to claim 5, characterised in that, The axis of the engaging roller (4) and the axis of the supporting roller (5) are arranged perpendicularly to the axis of the blade (1).

7. A peripherally-driven ring saw arrangement according to claim 5, characterised in that, The cutting depth of the blade (1) is the full diameter range thereof.

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