Saw blade structure for trephine

Abstract

The utility model discloses a saw blade structure for trephine, which comprises a saw blade base body, two sides of the saw blade base body are oppositely provided with two inclined surfaces, the inner circumference of the saw blade base body is provided with a flange in a protruding manner, and an abutting circumferential surface is arranged between the side wall of the flange and the inclined surfaces. And the two sides of the abutting circumferential surface respectively form set break angles with the side wall of the flange and the inclined surface. The saw blade is provided with the inclined surface and the flange which are respectively used for the matched connection of the inclined surface and the driving wheel and the matched connection of the flange and the guide wheel, the matched connection structure on the inner side of the saw blade is simple, the abrasion speed is effectively reduced firstly, and the abrasion speed is effectively reduced secondly even if the inner circumference of the saw blade is abraded. Due to the arrangement of a connecting structure of the flange and the inclined plane, the stability of supporting and positioning matching of the saw blade can be effectively kept under a certain abrasion degree.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of electric tools, and relates to a saw blade structure for a ring saw. BACKGROUND

[0002] In the operation of cutting stone, concrete grooving and the like, a ring saw is a commonly used deep cutting tool, which adopts a ring-shaped saw blade, positions and supports the saw blade through a positioning device, and rotates the saw blade through a driving wheel to realize cutting.

[0003] The positioning device of the existing ring saw product adopts a guide plate form, the guide plate is arranged on the inner side of the saw blade, and the guide wheel and the driving wheel are used to provide radial and axial support and positioning for the saw blade, so as to ensure the stability of the saw blade, for example, the saw blade form disclosed in patent CN216938719U, but in the high-speed and high-vibration operation scene of the ring saw, the matching connection part between the saw blade and the guide wheel guide plate is prone to wear, thereby affecting the stability of the connection and the stability of the saw blade action, and the stability of the existing product fails too quickly when wear occurs, for example, the gear matching form of patent CN216938719U, the matching strength of the saw blade and the driving gear and the auxiliary gear decreases rapidly after wear. SUMMARY

[0004] The utility model discloses a saw blade structure for a ring saw to overcome the defects of the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A saw blade structure for a ring saw, comprising a saw blade base body, two inclined surfaces are arranged on opposite sides of the saw blade base body, a flange is protrudingly arranged on the inner periphery of the saw blade base body, an abutting peripheral surface is arranged between the side wall of the flange and the inclined surface, and the two sides of the abutting peripheral surface form a set angle with the side wall of the flange and the inclined surface respectively.

[0007] Further, it further comprises a guide plate, a driving wheel and two guide wheels, the guide plate is arranged on the inner peripheral side of the saw blade base body, the two guide wheels are connected with the guide plate, the outer periphery of the driving wheel is provided with a first V-shaped groove for abutting and matching with the two inclined surfaces, and the outer peripheral wall of the guide wheel abuts against the abutting peripheral surface.

[0008] Further, the guide wheel comprises an outer fixed wheel, an inner driving wheel and a wheel piece, a side plate is arranged on the guide plate, the outer fixed wheel is fixedly connected with the side plate, the inner driving wheel is arranged in the inner periphery of the outer fixed wheel, a plurality of rollers are arranged between the outer periphery of the inner driving wheel and the inner periphery of the outer fixed wheel, two wheel pieces are fixedly connected to the axial two ends of the inner driving wheel respectively, and the outer peripheral walls of the two wheel pieces abut against the two abutting peripheral surfaces respectively.

[0009] Further, the included angle between the inclined surface and the radial plane of the saw blade base body is 5-45°.

[0010] Further, the dustproof gaskets are protruded on the axial two side faces of the outer driving wheel, and are arranged at the outer circumferential positions of the rollers.

[0011] Further, a plurality of cutting tool bits are arranged on the outer circumferences of the saw blade base bodies.

[0012] A saw blade structure for a ring saw comprises a saw blade base body, two inclined surfaces are arranged on the opposite sides of the saw blade base body, and a flange is protruded on the inner circumference of the saw blade base body.

[0013] Further, a guide plate, a driving wheel and two guide wheels are further included, the guide plate is arranged on the inner circumferential side of the saw blade base body, the two guide wheels are connected with the guide plate, a first V-shaped groove for abutting and matching with the two inclined surfaces is arranged on the outer circumference of the driving wheel, and the outer circumferential wall of the guide wheel abuts against the inner circumferential wall of the flange.

[0014] Further, the guide wheel comprises an inner fixed wheel and an outer driving wheel, a side plate is arranged on the guide plate, a flat groove for accommodating the inner fixed wheel and the outer driving wheel is arranged in the side plate, the inner fixed wheel is fixedly connected in the flat groove, the outer driving wheel is annularly arranged on the outer circumference of the inner fixed wheel, a plurality of rollers are arranged between the inner circumference of the outer driving wheel and the outer circumference of the inner fixed wheel along the circumferential direction, and the outer circumferential wall of the outer driving wheel abuts against the inner circumferential wall of the flange.

[0015] Further, the included angle between the inclined surface and the radial plane of the saw blade base body is 5-45°.

[0016] Further, the dustproof gaskets are protruded on the axial two side faces of the outer driving wheel, and are arranged at the outer circumferential positions of the rollers.

[0017] Further, a plurality of cutting tool bits are arranged on the outer circumferences of the saw blade base bodies.

[0018] A saw blade structure for a ring saw comprises a saw blade base body, two inclined surfaces are arranged on the opposite sides of the saw blade base body.

[0019] Further, a guide plate, a driving wheel and two guide wheels are further included, the guide plate is arranged on the inner circumferential side of the saw blade base body, the two guide wheels are connected with the guide plate, a first V-shaped groove for abutting and matching with the two inclined surfaces is arranged on the outer circumference of the driving wheel, and the outer circumferential wall of the guide wheel abuts against the inner circumferential wall of the flange.

[0020] Furthermore, the angle formed between the inclined surface and the radial plane of the saw blade base is 5° to 45°.

[0021] Furthermore, the outer periphery of the saw blade base is provided with multiple cutting heads.

[0022] In summary, the advantages of this utility model are as follows:

[0023] The saw blade of this invention features an inclined surface and a flange, which are used for the connection between the inclined surface and the drive wheel, and the flange and the guide wheel, respectively. The connection structure on the inner side of the saw blade is simple, which firstly effectively reduces the wear rate, and secondly, even when wear occurs on the inner circumference of the saw blade, the connection structure between the flange and the inclined surface ensures that the stability of the saw blade's support and positioning is maintained under a certain degree of wear. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of Example 1.

[0025] Figure 2 for Figure 1 A schematic diagram of the guide wheel section.

[0026] Figure 3 for Figure 1 A cross-sectional structural diagram of the guide wheel section.

[0027] Figure 4 This is a schematic diagram of the structure of Example 2.

[0028] Figure 5 for Figure 4 A schematic diagram of the guide wheel section.

[0029] Figure 6 for Figure 4 A cross-sectional structural diagram of the guide wheel section.

[0030] Figure 7 This is a schematic diagram of the cross-sectional structure of the guide wheel and the saw blade base in Example 3.

[0031] The markings in the diagram are as follows: 11. Saw blade base; 111. Flange; 112. Bevel; 113. Second abutment circumference; 12. Guide plate; 121. Side plate; 13. Drive wheel; 14. Guide wheel; 141. Outer fixed wheel; 142. Inner moving wheel; 143. Wheel; 144. Inner fixed wheel; 145. Outer moving wheel; 146. Roller; 147. Dustproof washer; 148. Second V-groove. Detailed Implementation

[0032] The following embodiments and features in the embodiments can be combined with each other under the condition of no conflict.

[0033] It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented. The shape, number and proportion of each component can be changed arbitrarily when actually implemented, and the component layout pattern can be more complex.

[0034] All directional indications (such as up, down, left, right, front, back, transverse, longitudinal, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0035] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present application may actually be an approximate parallel relationship, and the perpendicular relationship may actually be an approximate perpendicular relationship.

[0036] The present application provides a saw blade structure for a ring saw, which comprises a saw blade base body 11, a guide plate 12, a guide wheel 14, and a driving wheel 13, which together form a rotating cutting assembly on the ring saw.

[0037] The saw blade base body 11 has a circular ring structure, and a plurality of cutting tool bits are arranged on the outer periphery of the saw blade base body 11. The cutting tool bits are connected to the saw blade base body 11 by welding or other detachable connection, and the model of the cutting tool bits can be selected as needed.

[0038] The guide plate 12, the guide wheel 14, and the driving wheel 13 are all arranged on the inner periphery side of the saw blade base body 11. The guide wheel 14 and the driving wheel 13 are in direct contact with the inner periphery of the saw blade base body 11. The driving wheel 13 is used to drive the saw blade base body 11 to rotate, and the guide wheel 14 cooperates with the driving wheel 13 to support and position the saw blade base body 11.

[0039] The driving wheel 13 is in frictional contact with the inner periphery of the saw blade base 11. The driving wheel 13 is provided with a first V-shaped groove on the outer periphery which is recessed in the circumferential direction. The inner periphery of the saw blade base 11 is provided with inclined surfaces 112 which are symmetrical on both sides. The inner periphery of the saw blade base 11 cooperates with the first V-shaped groove, so that the inclined surfaces 112 on both sides respectively abut against the inner walls on both sides of the first V-shaped groove, forming a relative frictional force. When the driving wheel 13 is driven to rotate, the saw blade base 11 is driven to rotate by the frictional force.

[0040] Preferably, the inclined angle a between the inclined surface 112 and the radial cutting plane of the saw blade base 11 is 5° to 45°, as shown in Figure 3 、 Figure 6 、 Figure 7

[0041] Preferably, in the embodiment, one driving wheel 13 is provided, and two guide wheels 14 are provided. The line connecting the centers of the three wheels of the driving wheel 13 and the guide wheels 14 forms a triangular structure, thereby forming a simple, stable and effective three-point support for the inner side of the saw blade base 11, ensuring the stability of the saw blade base 11 during cutting.

[0042] The guide plate 12 further comprises side plates 121 which are respectively provided on both sides of the guide plate 12 and are respectively used for mounting the two guide wheels 14.

[0043] The guide plate 12 is fixedly connected to the ring saw body. After the guide plate 12 is fixed by the ring saw body, the guide plate 12, the guide wheels 14 and the driving wheel 13 can provide support and positioning for the saw blade base 11. A power assembly is provided in the ring saw body. The power assembly can be a motor. The driving wheel 13 is connected to the power assembly, and the power assembly drives the rotation of the driving wheel 13. The relative position of the driving wheel 13 and the saw blade base 11 can be adjusted within a certain range, so that the distance between the driving wheel 13 and the two guide wheels 14 in the radial plane of the saw blade base 11 can be adjusted. When a saw blade base 11 with a different inner diameter is used, or when the inner diameter of the saw blade base 11 changes due to long-term use and wear, the distance can be adjusted to adapt to the change, so that the driving wheel 13 and the guide wheels 14 can stably contact and support the inner periphery of the saw blade base 11.

[0044] Embodiment 1:

[0045] Referring to Figure 1 、 Figure 2 and Figure 3 ​The left and right side plates 121 are respectively fixedly connected to the two sides of the guide plate 12. The guide wheel 14 comprises an outer fixed wheel 141, an inner movable wheel 142 and wheel pieces 143. The outer fixed wheel 141 is fixedly connected with the side plates 121. The middle part of the outer fixed wheel 141 is hollow. The inner movable wheel 142 is arranged at the inner periphery of the outer fixed wheel 141. A plurality of rollers 146 are arranged between the outer periphery of the inner movable wheel 142 and the inner periphery of the outer fixed wheel 141. The outer fixed wheel 141 and the rollers 146 provide support, axial positioning and rotation ability for the inner movable wheel 142. The number of the wheel pieces 143 is two. The two wheel pieces 143 are respectively arranged at the two ends of the axial direction of the inner movable wheel 142. The two wheel pieces 143 are fixedly connected with the inner movable wheel 142 through rivets, so that the two wheel pieces 143 are coaxial, parallel and have a gap with a set distance.

[0046] The inner periphery of the saw blade base body 11 is provided with a flange 111 protruding in the radial direction. The left and right side walls of the flange 111 are respectively connected with the left and right inclined surfaces 112 of the saw blade base body 11, and a second abutting peripheral surface 113 for abutting with the outer peripheral wall of the wheel piece 143 is formed at the connection position. The two second abutting peripheral surfaces 113 respectively abut with the two wheel pieces 143, and the two wheel pieces 143 are respectively located at the left and right sides of the flange 111 to form a limit in the axial direction of the saw blade base body 11. The two sides of the second abutting peripheral surface 113 are respectively connected with the inclined surface 112 and the side wall of the flange 111, forming a set angle.

[0047] The outer fixed wheel 141 is provided with a dustproof gasket 147 protruding on the two side surfaces in the axial direction, and the dustproof gasket 147 is arranged at the outer peripheral position of the roller 146. The dustproof gasket 147 is in contact with the inner side of the two wheel pieces 143, forming a seal for the inner peripheral side space of the dustproof gasket 147, effectively preventing dust, mud, water and the like from invading the inner rollers 146 or the inner movable wheel 142, ensuring smooth operation, avoiding contact between the outer fixed wheel 141 and the wheel piece 143, ensuring smooth rotation of the wheel piece 143, reducing wear and noise.

[0048] Example 2:

[0049] Referring to Figure 4 , Figure 5 and Figure 6 , the guide wheel 14 comprises an inner fixed wheel 144 and an outer movable wheel 145. The side plate 121 is provided with a flat groove for accommodating the inner fixed wheel 144 and the outer movable wheel 145. The flat groove has a set thickness. The inner fixed wheel 144 is fixedly connected between the two inner walls of the flat groove through rivets. The outer movable wheel 145 is arranged at the outer periphery of the inner fixed wheel 144. A plurality of rollers 146 are arranged between the inner periphery of the outer movable wheel 145 and the outer periphery of the inner fixed wheel 144 in the circumferential direction. The inner fixed wheel 144 and the rollers 146 provide support, axial positioning and rotation ability for the outer movable wheel 145.

[0050] The inner periphery of the saw blade base 11 is provided with a flange 111 protruding radially, and the inner side wall of the flange 111 is formed with a first abutting circumferential surface for abutting against the outer circumferential wall of the outer driving wheel 145, so that the outer driving wheel 145 provides radial support for the saw blade base 11. The two side walls of the flat groove of the side plate 121 are respectively located on the two sides of the flange 111, thereby providing axial positioning of the two sides of the saw blade base 11, and further forming a support and positioning effect for the entire saw blade base 11. The two inclined surfaces 112 on the saw blade base 11 are respectively connected to the left and right side walls of the flange 111 to form a predetermined corner.

[0051] The outer driving wheel 145 is provided with a dustproof gasket 147 protruding on the axial two side surfaces, and the dustproof gasket 147 is arranged at the outer periphery of the roller 146. The dustproof gasket 147 is in contact with the two side walls of the flat groove, thereby sealing the inner circumferential space of the dustproof gasket 147, effectively preventing dust, mud, water and the like from entering the inner roller 146 or the inner fixed wheel 144, ensuring smooth operation, avoiding contact between the outer driving wheel 145 and the inner wall of the flat groove, ensuring smooth rotation of the outer driving wheel 145, reducing wear and noise.

[0052] Embodiment 3:

[0053] The guide wheel 14 includes an inner fixed wheel 144 and an outer driving wheel 145. The inner fixed wheel 144 is connected between the two inner walls of the flat groove by rivets. The outer driving wheel 145 is arranged at the outer periphery of the inner fixed wheel 144. A plurality of rollers 146 are arranged between the inner periphery of the outer driving wheel 145 and the outer periphery of the inner fixed wheel 144 in the circumferential direction. The inner fixed wheel 144 and the rollers 146 provide support, axial positioning and rotation ability for the outer driving wheel 145.

[0054] Referring to Figure 7 , the outer driving wheel 145 is provided with a second V-shaped groove 148 recessed on the outer periphery in the circumferential direction. The inner periphery of the saw blade base 11 cooperates with the second V-shaped groove 148, so that the two inclined surfaces 112 are respectively in abutment with the two inner walls of the second V-shaped groove 148.

[0055] The outer driving wheel 145 is provided with a dustproof gasket 147 protruding on the axial two side surfaces, and the dustproof gasket 147 is arranged at the outer periphery of the roller 146. The dustproof gasket 147 is in contact with the two side walls of the flat groove, thereby sealing the inner circumferential space of the dustproof gasket 147, effectively preventing dust, mud, water and the like from entering the inner roller 146 or the inner fixed wheel 144, ensuring smooth operation, avoiding contact between the outer driving wheel 145 and the inner wall of the flat groove, ensuring smooth rotation of the outer driving wheel 145, reducing wear and noise.

[0056] In the above-described embodiment 1, embodiment 2, and embodiment 3, the thickness of the guide plate 12, the thickness of the guide roller 14, and the thickness of the combined portion of the guide plate 12 and the guide roller 14 are all smaller than the thickness of the saw blade base 11 or the thickness of the cutting bit, so that the guide plate 12 and the guide roller 14 inside the saw blade base 11 do not contact the object to be cut during the cutting work.

[0057] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

Claims

1. A blade structure for a ring saw, characterized by, The saw blade base (11) is provided with two inclined surfaces (112) on opposite sides, and a flange (111) is protruded on the inner periphery of the saw blade base (11), and an abutting peripheral surface is arranged between the side wall of the flange (111) and the inclined surface (112), and the abutting peripheral surface on both sides forms a set angle with the side wall of the flange (111) and the inclined surface (112) respectively.

2. A saw blade structure for a ring saw according to claim 1, characterized in that Further comprising a guide plate (12), a driving wheel (13) and two guide wheels (14), the guide plate (12) is arranged on the inner periphery side of the saw blade base (11), the two guide wheels (14) are connected with the guide plate (12), and the outer periphery of the driving wheel (13) is provided with a first V-shaped groove for abutting and matching with the two inclined surfaces (112), and the outer peripheral wall of the guide wheel (14) abuts with the abutting peripheral surface.

3. A saw blade structure for a ring saw according to claim 2, characterized in that The guide wheel (14) comprises an outer fixed wheel (141), an inner driving wheel (142) and a wheel piece (143), a side plate (121) is arranged on the guide plate (12), the outer fixed wheel (141) is fixedly connected with the side plate (121), the inner driving wheel (142) is arranged in the inner periphery of the outer fixed wheel (141), a plurality of rollers (146) are arranged between the outer periphery of the inner driving wheel (142) and the inner periphery of the outer fixed wheel (141), and two wheel pieces (143) are fixedly connected to the axial two ends of the inner driving wheel (142), and the outer peripheral walls of the two wheel pieces (143) respectively abut with the two abutting peripheral surfaces.

4. A saw blade structure for a ring saw, characterized by The saw blade base (11) is provided with two inclined surfaces (112) on opposite sides, and a flange (111) is protruded on the inner periphery of the saw blade base (11), and the two side walls of the flange (111) respectively link with the two inclined surfaces (112) and form a set angle.

5. A saw blade structure for a ring saw according to claim 4, characterized in that Further comprising a guide plate (12), a driving wheel (13) and two guide wheels (14), the guide plate (12) is arranged on the inner periphery side of the saw blade base (11), the two guide wheels (14) are connected with the guide plate (12), and the outer periphery of the driving wheel (13) is provided with a first V-shaped groove for abutting and matching with the two inclined surfaces (112), and the outer peripheral wall of the guide wheel (14) abuts with the abutting peripheral surface.

6. A saw blade structure for a ring saw according to claim 5, characterized in that The guide wheel (14) comprises an outer fixed wheel (141), an inner driving wheel (142) and a wheel piece (143), a side plate (121) is arranged on the guide plate (12), the outer fixed wheel (141) is fixedly connected with the side plate (121), the inner driving wheel (142) is arranged in the inner periphery of the outer fixed wheel (141), a plurality of rollers (146) are arranged between the outer periphery of the inner driving wheel (142) and the inner periphery of the outer fixed wheel (141), and two wheel pieces (143) are fixedly connected to the axial two ends of the inner driving wheel (142), and the outer peripheral walls of the two wheel pieces (143) respectively abut with the two abutting peripheral surfaces.

7. A saw blade structure for a ring saw, characterized by The saw blade base (11) is provided with two inclined surfaces (112) on opposite sides, and a flange (111) is protruded on the inner periphery of the saw blade base (11), and the two side walls of the flange (111) respectively link with the two inclined surfaces (112) and form a set angle. Further comprising a guide plate (12), a driving wheel (13) and two guide wheels (14), the guide plate (12) is arranged on the inner periphery side of the saw blade base (11), the two guide wheels (14) are connected with the guide plate (12), and the outer periphery of the driving wheel (13) is provided with a first V-shaped groove for abutting and matching with the two inclined surfaces (112), and the outer peripheral wall of the guide wheel (14) abuts with the abutting peripheral surface. The guide wheel (14) comprises an outer fixed wheel (141), an inner driving wheel (142) and a wheel piece (143), a side plate (121) is arranged on the guide plate (12), the outer fixed wheel (141) is fixedly connected with the side plate (121), the inner driving wheel (142) is arranged in the inner periphery of the outer fixed wheel (141), a plurality of rollers (146) are arranged between the outer periphery of the inner driving wheel (142) and the inner periphery of the outer fixed wheel (141), and two wheel pieces (143) are fixedly connected to the axial two ends of the inner driving wheel (142), and the outer peripheral walls of the two wheel pieces (143) respectively abut with the two abutting peripheral surfaces. The saw blade base (11) is provided with two inclined surfaces (112) on opposite sides, 8. A saw blade structure for a ring saw according to claim 7, characterized in that Further include guide plate (12), driving wheel (13) and two guide wheels (14), the guide plate (12) is set to the inner circumferential side of the saw blade base body (11), two the guide wheels (14) are connected with the guide plate (12), the outer circumferential of the driving wheel (13) is provided with the first V-shaped groove for being matched with two the inclined plane (112), the outer circumferential of the guide wheel (14) is provided with the second V-shaped groove (148) for being matched with two the inclined plane (112).

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