CN205630858U - Saw chain connection piece and saw chain - Google Patents

Abstract

The utility model provides a saw chain connection piece and saw chain. This saw chain connection piece includes the body, an at least oil groove is seted up on the surface of body. The utility model discloses an oil groove has been seted up in the surface of its body to the saw chain connection piece, and certain lubricating oil can be acceptd to this oil groove to producing the driven lubrication action of saw chain, having avoided the wearing and tearing of saw chain connection piece when this transmission campaign, long service life has reduced the frequency of changing.

Description

Saw chain connects sheet and saw chain

Technical field

This utility model relates to saw chain field, connects sheet and saw chain in particular to saw chain.

Background technology

Chain saw, also referred to as chain saw, the portable saw with gasoline engine as power, be mainly used in lumbering and Producing material, its operation principle is to shear by L-shaped blade transverse movement staggered on saw chain Action.Chain saw is the one of orcible entry equipment, can be divided into motor-driven chain according to function and induced way Saw, non-maneuver chain saw, concrete chain saw etc..Saw chain is mainly by prime mover, guide plate, saw chain Form with sprocket wheel etc..Guide plate is anchored on the housing of prime mover, and saw chain is widely different around guide plate with chain The parts that the widely different transhipment of crop rotation is dynamic.

Chinese patent CN202742449U discloses a kind of tree harvester saw chain.This chain saw Wood is formed by left Cutting teeth chair blade, right Cutting teeth chair blade, connection sheet, the riveting of drive link chain rivet, Drive link guide part thickness is 1.8～2.2mm, drive link connecting portion thickness be 2.0～ 2.4mm, chain sheet thickness is 1.6～1.7mm, and Cutting teeth chair blade material toggling amount is 3.48～3.8mm, Saw kerf width is 9.2～9.8mm, and chain rivet connecting portion a diameter of 3.2～3.5mm, in chain rivet Portion a diameter of 4.8～5.2mm, manufactured head height is 0.8～0.85mm, the pitch-row phase of chain sheet Deng, the pitch of saw chain is 10.26～12.7mm.This chain saw has intensity height, can bear tree The huge chip-load of wood harvester and superelevation running speed, cutting-rate.

Chinese patent CN204357064U discloses a kind of hard alloy saw chain, and its hard closes The solder side that gold tooth block welds with cutting tooth makes the face of cylinder, and the arc radius on the face of cylinder is 2～5mm, optimal 2.5～the block-shaped approximation truncated rectangular pyramids of making of 4mm tooth, medial surface height is little In lateral surface height.The flank of tooth block is perpendicularly inward recessed, interior re-entrant angle 1～3 degree.Tooth block Fillet is made in crest top land and flank intersection, and crown becomes one section of circular arc line, the circle of crown Arc radius is 0.2～0.8mm, optimal 0.3～0.4mm.This utility model uses butt welding Hard-metal insert block is welded together by method with cutting tooth, carries out local high after tooth block welding Temperature tempering, the strength of connection of weld seam improves 4 times than solder brazing, the most firmly, during sawing not Tooth can be fallen.

Although above existing patent documentation relates to saw chain, but it is and connects sheet for saw chain. The flap-type part that the connection sheet of these prior aries is stamped to form by sheet metal, thus easily grind Damaging, the life-span is short, need to often change, and adds maintenance cost undoubtedly.

Utility model content

In view of this, on the one hand the purpose of this utility model embodiment is to provide a kind of saw chain Connecting sheet, this chain saw connects sheet and has wear-resistant, and service life is long, reduces and changes frequency.

A kind of saw chain connects sheet, and including body, at least one oil groove is offered on the surface of described body.

Further, described oil groove is dumb-bell shape.

Further, described oil groove is positioned at the middle position of described body.

Further, the surface of described body is further opened with at least two chain-axis holes.

Further, described oil groove be positioned at described in the centre of at least two chain-axis holes.

Further, described at least two chain-axis holes are arranged centered by described oil groove symmetrically Cloth.

Further, described oil groove is enclosed slot.

Further, described oil groove is half groove.

Further, the degree of depth of described oil groove is the 1/8～1/3 of body thickness.

The purpose of this utility model embodiment further aspect is that a kind of saw chain of offer, this saw chain Connection sheet have wear-resistant, service life is long, it is not necessary to often change.

A kind of saw chain, connects sheet including saw chain described above.

Saw chain of the present utility model connects sheet and offers oil groove in the surface of its body, this oil groove Can house certain lubricating oil, thus produce the chaindriven lubrication of saw, it is to avoid saw Chain connects the sheet abrasion when this drive motion, and service life is long, reduces the frequent of replacing Property.

For making above-mentioned purpose of the present utility model, feature and advantage to become apparent, Preferred embodiment cited below particularly, and coordinate appended accompanying drawing, it is described in detail below.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to reality Execute the required accompanying drawing used in example to be briefly described, it will be appreciated that the following drawings is only shown Go out some embodiment of the present utility model, be therefore not construed as the restriction to scope, For those of ordinary skill in the art, on the premise of not paying creative work, also Other relevant accompanying drawings can be obtained according to these accompanying drawings.

Fig. 1 shows that the saw chain that this utility model one embodiment provided connects the structure of sheet and shows It is intended to.

Main element symbol description:

1 body

2 chain-axis holes

3 oil grooves.

Detailed description of the invention

For the ease of understanding this utility model, below with reference to relevant drawings, saw chain is connected sheet It is described more fully.Accompanying drawing gives the first-selected embodiment that saw chain connects sheet.But, Saw chain connects sheet and can realize in many different forms, however it is not limited to described herein Embodiment.On the contrary, providing the purpose of these embodiments is the disclosure making to connect saw chain sheet Content is more thorough comprehensively.

In description of the present utility model, it is to be understood that term " longitudinally ", " laterally ", On " ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", Orientation or the position relationship of the instruction such as " end " " interior ", " outward " are based on orientation shown in the drawings Or position relationship, it is for only for ease of description this utility model and simplifies description rather than refer to Show or imply that the device of indication or element must have specific orientation, with specific orientation structure Make and operate, therefore it is not intended that to restriction of the present utility model.

In the description of this specification, reference term " embodiment ", " some embodiments ", The description of " example ", " concrete example " or " some examples " etc. means to combine this embodiment Or specific features, structure, material or the feature that example describes is contained in of the present utility model In at least one embodiment or example.In this manual, the schematic table to above-mentioned term State and be not necessarily referring to identical embodiment or example.And, the specific features of description, knot Structure, material or feature can be with properly in any one or more embodiments or example Mode combine.

In description of the present utility model, unless otherwise prescribed and limit, it should be noted that Term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it may be mechanical Connect or electrical connection, it is also possible to be the connection of two element internals, can be to be joined directly together, Can also be indirectly connected to by intermediary, for the ordinary skill in the art, The concrete meaning of above-mentioned term can be understood as the case may be.

As it is shown in figure 1, be the structural representation of this utility model embodiment chain saw connection sheet.

The chain saw of this utility model embodiment connects sheet, including body 1.The table of this body 1 Face offers at least one oil groove 3.

It should be pointed out that, the body of aforementioned " chain saw connection sheet " is lamellar as its name suggests. Should not misunderstand, lamellar is not meant to that one is set to plane, and it can be also flexure plane.This " lamellar " described in literary composition refers on the length measuring in its three dimensions, thickness (wherein one The length measuring of individual dimension) will be much smaller than the length measuring of two other dimension (for lamellar For plane, the length measuring of these two dimensions is length and width, in other words, width Similar with height etc.).For " lamellar ", do not consider that thickness direction is determined four Face, only considers by two faces of the length measuring of two other dimension.Illustrate for convenience, Sheet is connected for plane as example herein with chain saw.Put in before this, described in this utility model " surface " refers both to two faces determined by the both direction of length and width.

It should be pointed out that, aforementioned " oil groove 3 " is as the term suggests ground is a kind of groove." groove " should When the ordinary meaning of mechanical field understands.That is, for circular or similar round (such as oval) For, all close and vertical in diametric(al) (referred to as radially, having the direction of 360 degree) In the space body that radially (i.e. axial, to have both direction) at least one direction is open.Herein, If the space body that axial both direction all opens, referred to as groove；If axial only one The space body that individual direction all opens, we term it half groove.For square, at it Length measuring in three dimensions (sets and with length, width and highly represents, can count On, orthogonal coordinate system XYZ axle respectively correspondingly represents length, width and width) in, its In the direction (setting XY axle) that determined of two dimensions all close, another one dimension is (i.e. Z axis) both direction that determined an at least direction is open space body.Herein, If the space body that the both direction of Z axis all opens, referred to as groove；If Z axis only one of which The space body that direction all opens, we term it half groove.For in the definition of aforementioned grooves, Based on circular or similar round, and two kinds of square different situations, corresponding geosyncline claims respectively For arcuate groove and square groove.

Oil groove 3, owing to having certain degree of depth, can accommodate certain lubricating oil.Pass at saw chain During Dong, lubricating oil is available for body 1 with the lubrication between other parts of saw chain, thus Reducing the abrasion of saw chain, service life is long, reduces the frequency of replacing.

Oil groove 3 is in addition to having aforesaid effect, and it additionally aids the heat radiation of body 1, its Reason is: the space body of oil groove 3 provides right with outside air of heat of body 1 accumulation Stream, creates the radiating mode of thermal convection current mode.Compared to the body not offering oil groove 3 1, the former heat radiation is more effectively.

In this example, oil groove 3 can be in dumb-bell shape.Herein, " dumb-bell shape " refers to have such as dumbbell Analogous shape, i.e. has and " in the middle of the circular both ends of (or similar round), these both ends is Bar shaped " shape.It is understood that except dumbbell shape, it is also possible to any for other Shape, such as kidney ellipsoid etc., in this utility model without limitation.

Aforementioned it is stated that the shape of oil groove 3, as the degree of depth of oil groove 3, do not do particularly Requirement.But the reason of the intensity in view of body 1, the degree of depth of oil groove 3 is with body 1 thickness 1/8～1/3 is preferred, such as, can be 1/8,1/6,1/5,1/4, the 1/3 of body 1 thickness.When The degree of depth of oil groove 3 is excessive, and the local (at oil groove 3) the most significantly weakening body 1 is strong Degree；When the degree of depth of oil groove 3 is too small, then do not have the action function that oil groove 3 should possess, This effect had detailed elaboration aforementioned, did not repeated them here.

Oil groove 3 can be enclosed slot (situation as depicted).Enclosed slot maximum can limit fall The low reduction intensity of body 1 caused because of the material deficiency offering generation of oil groove 3.

Except of course that the situation of above-mentioned enclosed slot, oil groove 3 can be also half groove.Half groove Oil groove 3 is made to have certain opening.This opening not only contributes to lubricating oil turnover oil groove 3. And the more important thing is, the generation to body 1 heat loss through convection mode of the aforementioned oil groove 3 can be promoted Probability, improves body 1 radiating effect.

Analogizing, oil groove 3 can certainly be groove.But, although groove be more beneficial for right Body 1 heat loss through convection mechanism, but bring the reduction of body 1 intensity simultaneously.Consider, This example is preferably enclosed slot or half groove.

It is understood that oil groove 3 is except individually using half groove or the form of enclosed slot, Also can use the form that half groove and enclosed slot combine simultaneously.Only need to be arranged by oil groove 3 For multiple, part therein is enclosed slot, and other is half groove.Further, The oil groove 3 of enclosed slot, can communicate with half groove, thus one cell body system of composition.

In this example, oil groove 3 can be located at the middle position of body 1.Should not misunderstand, this Place " middle position " forgives but not merely refers to center, but can substantially center Position.

The surface of body 1 is further opened with at least two chain-axis holes 2.This chain-axis hole 2 is for for chain Axle passes.This chain-axis hole 2 preferably through hole.

Each saw chain connects sheet and is connected as two sawtooth sheets by axle chain hole, the most left sawtooth sheet with Right sawtooth sheet.Based on this, chain-axis hole 2 ought to be two.However, it is envisioned that, Chain-axis hole 2 is more than two when, and it can play body beyond the part of two The thermolysis of 1.It reason is that it can be that body 1 carries owing to chain-axis hole 2 is through hole For being easy to the heat passage with the convection current of outside air, create the heat radiation side of thermal convection current mode Formula.

Connect the balance of sheet transmission in order to improve saw chain, reduce because transmission imbalance is caused Electric shock, can be by body 1 and oil groove 3 and chain-axis hole 2 in the arrangement on body 1 surface All can be set to symmetrical structure.Body 1 is symmetrical structure, can be axisymmetric lamellar Structure, it is possible to centered by symmetrical laminated structure.As the body of aforementioned symmetrical structure, can List the mode of soybean pod shape.

In the case of body 1 is axially symmetric structure, the quantity of chain-axis hole 2 is at least two Individual even number, they are arranged with the central shaft of body 1 as axis of symmetry.Oil groove 3 is with this The central shaft of body 1 is the central authorities that axis of symmetry is positioned at body 1.

In like manner, centered by body 1 in the case of symmetrical structure, the quantity of chain-axis hole 2 For the radix of at least two, they are with the symmetrical centre symmetry arrangement of body 1.Oil groove The center of 3 is positioned at the central authorities of body 1 with the symmetrical centre of body 1 with overlapping.

What deserves to be explained is, in this example, saw chain connects sheet and alloy-steel plate can be used to be processed Forming, steel alloy can be such as 50Mn, 50Mn2V, 65Mn, T12 or T10 etc.. The process of processing is: steel plate fine circular hole and the smoothing of profile heat treatment The operations such as surface process, each operation here all can refer to known in those skilled in the art The technology of intermetallic composite coating is implemented, and is not repeating in this.

Saw chain of the present utility model comprises above-mentioned saw chain indispensablely and connects sheet.Have as it The structure of body can use the structure of dawn known to those skilled in the art.Such as, saw chain can be Connected sheet riveted into the closed chain of band sawtooth with chain rivet by sawtooth sheet, driver blade, saw chain. Saw chain has some saw chains joint to constitute.Each saw chain saves by left saw chain unit and right saw chain unit institute Constitute.Wherein, left saw chain unit by a left sawtooth sheet, one saw chain connect sheet, two chain rivets, Two driver blades are constituted.Left sawtooth sheet and saw chain connect sheet and are respectively riveted on two by two chain rivets On individual driver blade, and driver blade is clipped in the middle；Right saw chain unit by a right sawtooth sheet, one Saw chain connection sheet, two chain rivets, two driver blades are constituted.Right sawtooth sheet and saw chain connect sheet Respectively it is riveted on two driver blades by two chain rivets, and driver blade is clipped in the middle.

Aforementioned, left sawtooth sheet and right sawtooth sheet can be antitrope, i.e. the two structure and shape Can be identical.For convenience of description, left sawtooth sheet and right sawtooth sheet are generically and collectively referred to as sawtooth Sheet.In order to improve the fastness of the structure of sawtooth sheet, it is to avoid sawtooth sheet is at cutting hard wood Easily come off, now enumerate the embodiment of a kind of sawtooth sheet.In this embodiment, saw Gear piece one hard-metal insert block, a cutting tooth, a limit material tooth, a junction and two rivetings Hole is constituted.This hard-metal insert block uses the alloy material of hard, such as wolfram steel etc..Firmly Matter carbide button block welding is in this cutting tooth, and the solder side of both welding can be cylindrical or circle A part for cylindricality, so that the welding tension that bond hard alloy tooth block is subject to is preferably minimized, from And avoid weld crack.The arc radius R1 on the face of cylinder is 2～5mm, optimal arc radius R1 is 2.5～4mm.For reducing sawing resistance, hard-metal insert block is shaped to approximation Truncated rectangular pyramids, tooth block medial surface height is less than tooth block lateral surface height.The tooth of hard-metal insert block Side is perpendicularly inward recessed, and the vertical interior re-entrant angle a of tooth block flank is 1～3 degree.For improving crown Intensity, the crest top land of hard-metal insert block and flank intersection make fillet, and crown becomes Being one section of Circular Nose Cutting Edge line, tooth block tip circular-arc radius R2 is 0.2～0.8mm, optimal teeth block Tip circular-arc radius R2 is 0.3～0.4mm.

Aforementioned drive sheet, in order to reduce driver blade abrasion operationally, adds the use longevity Life so that the maintenance cost of driver blade is substantially reduced, and can enumerate the embodiment party of a kind of driver blade Formula.In this embodiment, the surface of the body of driver blade offers groove and axis hole respectively, The quantity of axis hole is at least two, and groove can be the groove of bar shaped or circle, and this bar shaped is recessed One end of groove and the side edge of driver blade body, the other end is then positioned at this driver blade body Surface and not with the side edge of driver blade body, the quantity of strip groove can be one, Can also be a plurality of be arrangeding in parallel.

In order to improve the efficiency of cutting, can be on the basis of aforementioned saw chain, further Safeguard structure is set.Such as can refer to CN 201702823U, i.e. particularly as follows: two biographies Being additionally provided with protection between dynamic chain sheet and connect sheet, described protection connects sheet and is located at right Cutting teeth chair blade Before, after left Cutting teeth chair blade, connect sheet with protection and be provided with connection sheet relative to position, logical Cross chain rivet to connect.It is a tetragon that protection connects sheet, has an oval hole slot, on it in the middle part of it Being provided with front guard section is and rear protecting part.Protection connects the sheet limit at left and right Cutting teeth chair blade Material front flank.Protection connects the front guard section of sheet, rear protecting part forms a slope.Left Before right Cutting teeth chair blade, chain rivet chassis is arranged over a limit material tooth and protects the front protection department being connected sheet The imaginary line divided overlaps, the upper edge of imaginary line a little higher than rear protecting part.Left and right cutting The limit material tooth upper edge of chain sheet and protection connect sheet guard section and mutually form slope.Chain saw is even Contact pin tail defense part upwardly extends along limit material tooth, therefore limit material tooth and guard section Double-thickness can effectively prevent them to be excessively pressed in timber, and follow-up cutting was also avoided Degree cutting.This saw chain connects sheet and is provided with chip area, increases chip removal ability, reduces the horizontal stroke of cutting To stress.The forward and backward guard section connecting sheet forms slope effect, both contributes to prevent from cutting Tooth excessively cuts and does not affect chip removal ability.

This utility model is connected sheet with existing saw chain and the most frequently has the advantage that the company of decreasing Contact pin abrasion operationally, adds service life, and maintenance cost is substantially reduced.

Although the above more term representing structure that employs, such as " body 1 ", " oil groove 3 ", Deng, but it is not precluded from using the probability of other term.These terms are used to be only used to Describe and explain essence of the present utility model more easily；It is construed as any attached The restriction added is all contrary with this utility model spirit.

The above, detailed description of the invention the most of the present utility model, but of the present utility model Protection domain is not limited thereto, and any those familiar with the art is in this practicality In the technical scope of novel exposure, change can be readily occurred in or replace, all should contain in this reality Within novel protection domain.Therefore, protection domain of the present utility model should be described with power The protection domain that profit requires is as the criterion.

Claims (9)

1. a saw chain connects sheet, it is characterised in that including that body, the surface of described body offer at least one oil groove, described oil groove is positioned at the middle position of described body.

Saw chain the most according to claim 1 connects sheet, it is characterised in that described oil groove is dumb-bell shape.

Saw chain the most according to claim 1 connects sheet, it is characterised in that the surface of described body is further opened with at least two chain-axis holes.

Saw chain the most according to claim 3 connects sheet, it is characterised in that described oil groove be positioned at described in the centre of at least two chain-axis holes.

Saw chain the most according to claim 3 connects sheet, it is characterised in that described at least two chain-axis holes are arranged centered by described oil groove symmetrically.

Saw chain the most according to claim 1 connects sheet, it is characterised in that described oil groove is enclosed slot.

Saw chain the most according to claim 1 connects sheet, it is characterised in that described oil groove is half groove.

Saw chain the most according to claim 1 connects sheet, it is characterised in that the degree of depth of described oil groove is the 1/8～1/3 of body thickness.

9. a saw chain, it is characterised in that include that saw chain as claimed in claim 1 connects sheet.