CN202114347U - Saw web group and circular sawing machine with same - Google Patents

Saw web group and circular sawing machine with same Download PDF

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Publication number
CN202114347U
CN202114347U CN2011201819093U CN201120181909U CN202114347U CN 202114347 U CN202114347 U CN 202114347U CN 2011201819093 U CN2011201819093 U CN 2011201819093U CN 201120181909 U CN201120181909 U CN 201120181909U CN 202114347 U CN202114347 U CN 202114347U
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CN
China
Prior art keywords
saw
saw blade
axial limiting
limiting sheet
blade
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Expired - Fee Related
Application number
CN2011201819093U
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Chinese (zh)
Inventor
吕振强
王学利
Original Assignee
胡继宁
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Priority to CN2011201819093U priority Critical patent/CN202114347U/en
Application granted granted Critical
Publication of CN202114347U publication Critical patent/CN202114347U/en
Priority claimed from PCT/CN2012/076006 external-priority patent/WO2012159576A1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a saw web group and a circular sawing machine with the same, which are simple and reliable in structure and low in cost. The saw web group comprises a pair of circular saw webs, wherein each saw web is respectively provided with a saw web body and a cutting element disposed on the periphery of the saw web body, a central hole is arranged on the saw web body, and the cutting element is hard metal saw teeth or an arc section covered by carborundum. The two saw webs are suitable for rotating reversely with the same rotating shaft, and during rotation, the two saw webs are suitable for being close to each other in parallel. The cutting element of at least one saw web of the two saw webs is towards the direction of the other saw web and axially protrudes relative to the saw web body. At least one axial limit piece which is connected to neither of the saw webs is further arranged between the two saw webs, and the outer diameter of the axial limit piece is 0.5-0.95 times that of the saw webs so as to prevent the two saw webs from colliding during rotation.

Description

A kind of saw blades groups and contain the circular sawing machine of saw blades groups
Technical field
The utility model relates to a kind of saw blades groups and contains the circular sawing machine of saw blades groups, is applicable to the hard object of cutting knot, for example is used to cut wood or metal, and circular sawing machine is a power driven cutter, relates in particular to the saw blades groups of a kind of pair of saw blade and contains the circular sawing machine of saw blades groups.First saw blade in the saw blades groups suits on first direction, to rotate around a rotation, and second saw blade suits on the second direction opposite with first direction, to rotate around same rotation, and two saw blades are suitable approaching parallel to each other when rotated.
Background technology
Can know following technical scheme from Chinese patent CN 1283435C: at the interval facility that is provided with between two saw blades that cooperatively interact on the blade bodies that is linked at least one saw blade, to prevent that bump each other takes place between the cutting element.Escapement or by wherein constituting with the cutting element that radially extends on the individual saw blade; These cutting elements are interactive on the blade bodies of opposed second saw blade; Or escapement is to be made up of the interval gasket ring or the face coat that are positioned on arbitrary saw blade; Equally, this device also is provided on the blade bodies of opposed saw blade and slides.
Escapement adopts the shortcoming of the scheme of extending cutting element to be: the grinding to cutting element can bring problem.The shortcoming of another kind of escapement is: there is the trend that decline was lost efficacy or worn and torn fast in the course of work, the high temperature that produces in the sawing process is this trend of aggravation further.
In addition, can know following technical scheme from one Chinese patent application CN 101557911A: a kind of paired saw blade, it comprises first saw blade and second saw blade, two saw blades are configured to rotate in the opposite direction earlier around common rotational axis.Each saw blade all has blade bodies and the ring overhang that cutting element has formed from said front side or dorsal part stretches out in week separately.Said front side or said dorsal part have on the oncus of circumference interactive, and wherein oncus is made into to be integral with corresponding blade bodies, and has played the effect of escapement, and the cutting element of overhang clashes in the saw blade rotation process each other to prevent to have separately.
Adopt oncus to be made into to be integral with corresponding blade bodies; The shortcoming of technical scheme that has played the effect of escapement is: because the existence of oncus, the thickness of blade bodies is thicker, makes processing difficulties; Machining accuracy is difficult to guarantee, so the production cost of saw blade is higher.
The material of the cutting element of two paired saw blades is normally identical with hardness, and the material of the blade bodies of same two saw blades also is identical with hardness usually.In above-mentioned two technical schemes; The cutting element or the blade bodies of escapement and saw blade are arranged to one; Escapement on the saw blade in the running slides with the cutting element of another saw blade or blade bodies mutually; Because the antisticking wearing and tearing ability of the friction pair that the big material of same material or intersolubility is formed is relatively poor, escapement is prone to adhesive wear and saw blade was lost efficacy in the sliding friction process simultaneously.Therefore this pair saw blade circular sawing machine needs frequent change saw blade, troublesome poeration.
Summary of the invention
The purpose of the utility model is: a kind of saw blades groups of easily manufactured, low-cost long-life simple in structure is provided and contains the circular sawing machine of this saw blades groups.
The utility model is realized through following technical scheme:
A kind of saw blades groups comprises a pair of saw blade, and wherein each saw blade respectively has a blade bodies and is located at the cutting element on the blade bodies periphery, and blade bodies is provided with centre bore, and cutting element is hard metal sawtooth or the segmental arc that is coated with diamond dust; Wherein first saw blade suits on first direction around a rotation rotation; And second saw blade suits on the second direction opposite with first direction, to rotate around same rotation, and two saw blades are suitable approaching parallel to each other when rotated, the cutting element that has a saw blade at least in these two saw blades; On another saw blade direction; Relatively its blade bodies is axially protruded, and in the middle of these two saw blades, also is provided with the axial limiting sheet that a slice at least is not connected with arbitrary saw blade; And the external diameter of this axial limiting sheet is 0.5~0.95 times of external diameter of saw blade, bumps in two saw blade rotary courses preventing.
The advantage of the utility model is: the axial limiting sheet is independent lamellar body, and two saw blade manufacturing processing technics that match with it are identical with common saw blade, and technology is ripe, is convenient to saw blade low-cost production manufacturing in enormous quantities; Simultaneously because the axial limiting sheet is independent lamellar body, function singleness can reduce the fretting wear between axial limiting sheet and the saw blade through the technical parameters such as material, hardness and shape of very convenient choose reasonable axial limiting sheet, raising saw blades groups service life.
In like manner, contain the circular sawing machine of above-mentioned saw blades groups, low, the long service life of saw blade cost, comparatively economical.
This saw blades groups and the circular sawing machine that contains saw blades groups can be realized through the measure of describing in the following technical scheme and further improve and perfect.
On the axial limiting sheet, be provided with the driver element of accepting of accepting the driving of circular sawing machine output shaft flange, the axial limiting sheet can be accepted the driving of same output shaft flange with a saw blade respectively or simultaneously, realizes that this axial limiting sheet and this saw blade rotate synchronously.
The centre bore of the centre bore of axial limiting sheet and a saw blade has equal inscribed circle diameter; The axial limiting sheet is not sealed with arbitrary output shaft flange or arbitrary saw blade formation radial shape; It only plays the centering effect through the centering bead of its centre bore sleeve on an output shaft flange; The axial limiting sheet can be free to slide in the centering of arbitrary relatively saw blade do, and axial limiting sector-meeting self-control is reduced friction.
Have at least the blade bodies of a slice saw blade (the bigger saw blade in aperture, preferred center hole) to be provided with and can partly hold the recessed of axial limiting sheet, being convenient to be provided with the axial limiting sheet has rational material thickness.
At least one face of axial limiting sheet contact saw blade be provided with the axial limiting sheet be one or the salient point that links into an integrated entity or convex tendon or bulge loop, guaranteeing to reduce the area of axial limiting sheet contact saw blade under the reliable spacing prerequisite of axial limiting sheet.
With the antifriction layer, can reduce the coefficient of friction of axial limiting sheet contact saw blade at least one face of axial limiting sheet contact saw blade.Antifriction layer and attachment shaft can be chemical to the adhering mode of banking stop, also can be physics with machinery, as electroplating etc.
The axial limiting sheet is dish shape or external tooth cushion or wavy annular.The axial limiting sheet is dish shape (being the shape of butterfly spring); The axial limiting sheet is external tooth cushion (being the shape of external tooth form packing ring); The axial limiting sheet is or wavy annular (being the shape of wave washer).The axial limiting sheet of dish shape, external tooth cushion and wavy annular can reduce the area that the axial limiting sheet contacts saw blade, and certain elasticity is arranged again simultaneously, reduces the accuracy of manufacture requirement of circular sawing machine.
Description of drawings
Fig. 1 is the partial sectional view of the utility model saw blades groups.
Fig. 2 is the partial sectional view of an embodiment of the utility model.
Fig. 3 is the right view of a kind of embodiment of axial limiting sheet among Fig. 2 embodiment.
Fig. 4 is the partial sectional view of another embodiment of the utility model.
Fig. 5 is the right view of a kind of embodiment of axial limiting sheet among Fig. 4 embodiment.
Fig. 6 is the partial sectional view that one of the utility model is optimized embodiment.
Fig. 7 is the partial right side view of the saw blade among Fig. 6 embodiment.
Fig. 8 is the partial sectional view of an embodiment circular sawing machine of the utility model.
Fig. 9 is the partial sectional view of another embodiment circular sawing machine of the utility model.
The specific embodiment
Saw blades groups among Fig. 1 supplies sawing timber and metal; Comprise a pair of saw blade; Wherein each saw blade (10,20) respectively has a blade bodies (11,21) and is located at the cutting element (12,22) on the blade bodies periphery; Blade bodies is provided with centre bore, and cutting element is hard metal sawtooth or the segmental arc that is coated with diamond dust; Wherein first saw blade (10) can rotate up in first party around a rotation (r), and first direction is towards picture in this example, representes with an open circles; And second saw blade (20) can rotate up in the second party opposite with first direction around same rotation (r), and second direction is for walking frame out, adds some points with a circle center and representes.
Two saw blades (10,20) are approaching parallel to each other when rotated; The cutting element (12) of the saw blade (10) in these two saw blades (10,20), on another saw blade (20) direction, its blade bodies (11) is axially protruded (H1) relatively; In the middle of these two saw blades; Also be provided with the axial limiting sheet (30) that a slice is not connected with arbitrary saw blade, and the external diameter (D2) of this axial limiting sheet (30) is 0.5~0.95 times of external diameter (D1) of saw blade, the thickness of axial limiting sheet is greater than the axial protrusion (H1) of the cutting element (12) of a saw blade (10); The axial limiting sheet is isolated two saw blades, bumps in two saw blades (10,20) rotary course preventing.
Certainly, the cutting element (22) of saw blade (20), on saw blade (10) direction, also its blade bodies (21) is axially protruded relatively.
The cutting element (22) of the saw blade among Fig. 2 and Fig. 3 (20); On saw blade (10) direction; The also axial protrusion (H2 ') of its blade bodies (21) relatively, on the axial limiting sheet (30), also be provided with accept that circular sawing machine output shaft flange drives accept driver element (33); Axial limiting sheet (30) can and saw blade (10) accept the driving of same output shaft flange respectively or simultaneously, realize this axial limiting sheet (30) and this saw blade (10) rotation synchronously.
Guaranteeing under the reliable spacing prerequisite of axial limiting sheet that in order to reduce the area of axial limiting sheet contact saw blade, being provided with the axial limiting sheet on the face of axial limiting sheet (30) the contact saw blade (20) in Fig. 2 is salient point or the convex tendon or the bulge loop (31) of one.
The face of the axial limiting sheet (30) that Fig. 3 illustrates is provided with and axial limiting sheet bulge loop (31), certainly, also can be salient point or convex tendon.With the axial limiting sheet be that the quantity of one or the salient point that links into an integrated entity is not less than 3 usually, the quantity of convex tendon is not less than 2, reliably contacts saw blade so that guarantee the axial limiting sheet.
In Fig. 2 and Fig. 3, the centre bore d2 of axial limiting sheet (30) illustrates that with circle the driver element (33) of accepting on the axial limiting sheet (30) separates with centre bore d2.Certainly, accept that driver element (33) and centre bore d2 can be designed to be integrally combined on the axial limiting sheet (30).
The centre bore d2 of the axial limiting sheet (30) among Fig. 4 and the centre bore d1 of saw blade (10) have equal inscribed circle diameter; Axial limiting sheet (30) is not sealed with arbitrary output shaft flange or arbitrary saw blade (10,20) formation radial shape, and it only plays the centering effect through the centering bead of its centre bore d2 sleeve on an output shaft flange; Axial limiting sheet (30) can arbitrary relatively saw blade (10; 20) do centering and be free to slide, axial limiting sector-meeting self-control is reduced friction.
Fig. 4 contacts with axial limiting sheet (30) among Fig. 5 on the face of saw blade (20) with antifriction layer (34), can reduce the coefficient of friction of axial limiting sheet contact saw blade.Antifriction layer and attachment shaft can be chemical to the adhering mode of banking stop, also can be physics with machinery, as electroplating etc.The centre bore d2 of the axial limiting sheet (30) among Fig. 5 illustrates that with regular hexagon certainly, the centre bore on the axial limiting sheet (30) can be shapes such as circle.
The blade bodies (11) of the saw blade among Fig. 6 and Fig. 7 (10) (the bigger saw blade in aperture, preferred center hole) is provided with recessed (16) that can partly hold the axial limiting sheet, and under the certain condition of sawing width, being convenient to be provided with the axial limiting sheet has rational material thickness.
The axial limiting sheet can be arranged to be dish shape or external tooth cushion or wavy annular.The axial limiting sheet of dish shape, external tooth cushion and wavy annular can reduce the area that the axial limiting sheet contacts saw blade, simultaneously certain elasticity is arranged again, can reduce the accuracy of manufacture requirement of circular sawing machine.
The circular sawing machine that saw blades groups is housed (40) among Fig. 8, motor that is provided with in the engine housing and transmission system, motor passes through the inside and outside output shaft (48 that transmission system drives is concentric and rotation direction is opposite; 41) rotation drives the saw blades groups that is clamped on the inside and outside output shaft flange (48,41) and carries out work; Saw blades groups comprises a pair of saw blade (10; 20), wherein each saw blade respectively has a blade bodies (11,21) and is located at the cutting element (12 on the blade bodies periphery; 22), serve as reasons hard metal sawtooth or be coated with the segmental arc of diamond dust of cutting element; Wherein first saw blade suits on first direction, to rotate around a rotation (r); And second saw blade suits on the second direction opposite with first direction, to rotate around same rotation (r), and two saw blades are suitable approaching parallel to each other when rotated, the cutting element of the saw blade in these two saw blades; On another saw blade direction; Relatively its blade bodies is axially protruded, and in the middle of these two saw blades, also is provided with the axial limiting sheet (30) that a slice at least is not connected with arbitrary saw blade; And the external diameter (D2) of this axial limiting sheet (30) is 0.5~0.95 times of external diameter (D1) of saw blade, bumps in two saw blade rotary courses preventing.On the axial limiting sheet (30); Also be provided with accept that circular sawing machine output shaft flange (41) go up to drive that output unit (43) drives accept driver element (33); Axial limiting sheet (30) can and saw blade (10) accept the driving of same output shaft flange (41) simultaneously, realize this axial limiting sheet (30) and this saw blade (10) rotation synchronously.
The circular sawing machine that saw blades groups is housed (50) among Fig. 9; Axial limiting sheet (30) is not sealed with arbitrary output shaft flange (41,48) or arbitrary saw blade (10,20) formation radial shape; Be axial limiting sheet (30) be not provided with accept that circular sawing machine output shaft flange (41) go up to drive that output unit (43) drives accept driver element (33);, it has only gone up the centering effect through its centre bore (35) sleeve in the centering bead (42) of an output shaft flange, and the axial limiting sheet can be free to slide in the centering of arbitrary relatively saw blade do.
In the practical application, can circular sawing machine be optimized through the structure that transmission system rationally is set.

Claims (10)

1. a saw blades groups comprises a pair of saw blade, and wherein each saw blade respectively has a blade bodies and is located at the cutting element on the blade bodies periphery, and blade bodies is provided with centre bore, and cutting element is hard metal sawtooth or the segmental arc that is coated with diamond dust; Wherein first saw blade suits on first direction around a rotation rotation; And second saw blade suits on the second direction opposite with first direction, to rotate around same rotation, and two saw blades are suitable approaching parallel to each other when rotated, the cutting element that has a saw blade at least in these two saw blades; On another saw blade direction; Relatively its blade bodies is axially protruded, and it is characterized in that: in the middle of these two saw blades, also be provided with the axial limiting sheet that a slice at least is not connected with arbitrary saw blade; And the external diameter of this axial limiting sheet is 0.5~0.95 times of external diameter of saw blade, bumps in two saw blade rotary courses preventing.
2. saw blades groups according to claim 1 is characterized in that: on the described axial limiting sheet, be provided with the driver element of accepting of accepting the driving of circular sawing machine output shaft flange.
3. saw blades groups according to claim 1 is characterized in that: the centre bore of the centre bore of described axial limiting sheet and a saw blade has equal inscribed circle diameter, can accept the centering of the centering bead on the circular sawing machine output shaft flange.
4. saw blades groups according to claim 1 is characterized in that: in the described saw blade, have at least the blade bodies of a slice saw blade (the bigger saw blade in aperture, preferred center hole) to be provided with and can partly hold the recessed of axial limiting sheet.
5. according to claim 1 or 2 or 3 or 4 described saw blades groups, it is characterized in that: at least one face of described axial limiting sheet contact saw blade be provided with the axial limiting sheet be one or the salient point that links into an integrated entity or convex tendon or bulge loop.
6. according to claim 1 or 2 or 3 or 4 described saw blades groups, it is characterized in that: have the antifriction layer at least one face of described axial limiting sheet contact saw blade.
7. according to claim 1 or 2 or 3 or 4 described saw blades groups, it is characterized in that: described axial limiting sheet is dish shape or external tooth cushion or wavy annular.
8. circular sawing machine that contains saw blades groups; Motor that is provided with in the engine housing and transmission system; The inside and outside output shaft rotation that motor is concentric through transmission system drives and rotation direction is opposite drives the saw blades groups that is clamped on the inside and outside output shaft flange and carries out work, and saw blades groups comprises a pair of saw blade; Wherein each saw blade respectively has a blade bodies and is located at the cutting element on the blade bodies periphery, serve as reasons hard metal sawtooth or be coated with the segmental arc of diamond dust of cutting element; Wherein first saw blade suits on first direction around a rotation rotation; And second saw blade suits on the second direction opposite with first direction, to rotate around same rotation, and two saw blades are suitable approaching parallel to each other when rotated, the cutting element that has a saw blade at least in these two saw blades; On another saw blade direction; Relatively its blade bodies is axially protruded, and it is characterized in that: in the middle of these two saw blades, also be provided with the axial limiting sheet that a slice at least is not connected with arbitrary saw blade; And the external diameter of this axial limiting sheet is 0.5~0.95 times of external diameter of saw blade, bumps in two saw blade rotary courses preventing.
9. circular sawing machine according to claim 8; It is characterized in that: on the described axial limiting sheet; Be provided with the driver element of accepting of accepting the driving of circular sawing machine output shaft flange; The axial limiting sheet can be accepted the driving of same output shaft flange with a saw blade respectively or simultaneously, realizes that this axial limiting sheet and this saw blade rotate synchronously.
10. circular sawing machine according to claim 8; It is characterized in that: the axial limiting sheet is not sealed with arbitrary output shaft flange or arbitrary saw blade formation radial shape; It only plays the centering effect through its centre bore sleeve on the centering bead of an output shaft flange, the axial limiting sheet can be free to slide in the centering of arbitrary relatively saw blade do.
CN2011201819093U 2011-05-24 2011-05-24 Saw web group and circular sawing machine with same Expired - Fee Related CN202114347U (en)

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Application Number Priority Date Filing Date Title
CN2011201819093U CN202114347U (en) 2011-05-24 2011-05-24 Saw web group and circular sawing machine with same

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Application Number Priority Date Filing Date Title
CN2011201819093U CN202114347U (en) 2011-05-24 2011-05-24 Saw web group and circular sawing machine with same
PCT/CN2012/076006 WO2012159576A1 (en) 2011-05-24 2012-05-24 Saw blade assembly and circular saw with same

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102794505A (en) * 2011-05-24 2012-11-28 胡继宁 Saw bit group and circular saw comprising same
WO2012159576A1 (en) * 2011-05-24 2012-11-29 胡必松 Saw blade assembly and circular saw with same
CN108698145A (en) * 2016-03-03 2018-10-23 胡斯华纳有限公司 Spacer structure and saw disc component for saw disc component

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102794505A (en) * 2011-05-24 2012-11-28 胡继宁 Saw bit group and circular saw comprising same
WO2012159576A1 (en) * 2011-05-24 2012-11-29 胡必松 Saw blade assembly and circular saw with same
CN108698145A (en) * 2016-03-03 2018-10-23 胡斯华纳有限公司 Spacer structure and saw disc component for saw disc component

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhejiang TCH Industrial Co., Ltd.

Assignor: Hu Jining

Contract record no.: 2013330000289

Denomination of utility model: Saw bit group and circular saw comprising same

Granted publication date: 20120118

License type: Exclusive License

Record date: 20130902

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120118

Termination date: 20160524