阅读说明：本技术 往复锯 (Reciprocating saw ) 是由 徐春明 刘光源 丁金福 于 2019-07-31 设计创作，主要内容包括：本发明提供了一种往复锯,涉及电锯领域。该往复锯包括壳体、能够相对于所述壳体做直线往复运动的往复杆和驱动电机,还包括：连接件,所述驱动电机的输出轴的端部设置有主动锥齿轮,所述主动锥齿轮与从动锥齿轮啮合,所述连接件固定于所述从动锥齿轮的盘面上,所述从动锥齿轮与所述壳体转动连接；传动件,所述传动件一端与所述连接件转动连接,一端与所述往复杆的端部转动连接,所述传动件相对于所述连接件的转动轴线与所述从动锥齿轮的转动轴线平行,且所述往复杆的中心轴线与所述从动锥齿轮的转动轴线不共面。本发明解决了现有的直线式往复锯的切割效率不高的技术问题。(The present invention provides a kind of reciprocating saws, are related to electric saw field.The reciprocating saw includes shell, the reciprocating lever and driving motor that straight reciprocating motion can be done relative to the shell, further include: connector, the end of the output shaft of the driving motor is provided with drive bevel gear, the drive bevel gear is engaged with driven wheel of differential, the connector is fixed in the disk of the driven wheel of differential, and the driven wheel of differential is connect with the housing into rotation；Driving member, described driving member one end and the connector are rotatablely connected, one end and the end of the reciprocating lever are rotatablely connected, the driving member is parallel with the pivot center of the driven wheel of differential relative to the pivot center of the connector, and the central axis of the reciprocating lever and the pivot center of the driven wheel of differential are non-coplanar.The present invention solves the not high technical problem of cutting efficiency of existing linear reciprocal saw.)

1. a kind of reciprocating saw, including shell, the reciprocating lever and driving motor of straight reciprocating motion can be done relative to the shell, It is characterized by further comprising:

Connector, the end of the output shaft of the driving motor are provided with drive bevel gear, the drive bevel gear with from mantle Gear engagement, the connector are fixed in the disk of the driven wheel of differential, the driven wheel of differential and the housing into rotation Connection；

Driving member, described driving member one end and the connector are rotatablely connected, and the end of one end and the reciprocating lever is rotatablely connected, The driving member is parallel with the pivot center of the driven wheel of differential relative to the pivot center of the connector, and described reciprocal The central axis of bar and the pivot center of the driven wheel of differential are non-coplanar.

2. reciprocating saw according to claim 1, which is characterized in that the connector is columned connecting pin；

The centerline axis parallel of the central axis of the connecting pin and the driven wheel of differential.

3. reciprocating saw according to claim 2, which is characterized in that further include:

Fixing screws, the center of the driven wheel of differential are fixedly connected with the fixing screws by axle sleeve, the fixing screws It is rotatablely connected with the shell by bearing；

Location nut, the location nut are spirally connected with the fixing screws, and the connecting pin is fixed on the disk of the location nut On face.

4. reciprocating saw according to claim 3, which is characterized in that the driving member uses drive rod, the drive rod One end and the connecting pin are rotatablely connected by bearing, and the other end and the reciprocating lever are rotatablely connected by pin shaft.

5. reciprocating saw according to claim 2, which is characterized in that it further include balance weight, the balance weight and the connection Pin rotation connection.

6. reciprocating saw according to claim 1, which is characterized in that further include reciprocal rod seal structure, the reciprocating lever is close Seal structure includes:

Sliding bearing, the reciprocating lever are connect by the sliding bearing with the shell；

Installation set, the installation set are wholely set with the sliding bearing, and the reciprocating lever is arranged in the installation set；

First seal, the first seal are arranged between the installation set and the shell；

Seal assembly, the seal assembly include second seal, and second seal setting is in the installation set and described Between reciprocating lever.

7. reciprocating saw according to claim 6, which is characterized in that the first seal, which is installed on, to be arranged in the shell Exit limiting slot in.

8. reciprocating saw according to claim 6, which is characterized in that be fixedly installed gear on the inner wall of the installation set Ring is equipped with end cap by the position of close end in the inner wall of the installation set, is formed and be used between the end cap and the baffle ring Accommodate the seal chamber of the seal assembly.

9. reciprocating saw according to claim 8, which is characterized in that the seal assembly further includes there is absorption to make oil liquid Oil sucting pad.

10. reciprocating saw according to claim 9, which is characterized in that the oil sucting pad is wool, and the seal assembly is also Including washer, the washer is between the wool and the end cap.

11. reciprocating saw according to claim 8, which is characterized in that the end cap in an interference fit with the peace Encapsulation connection.

12. the reciprocating saw according to any one of claim 6 to 11, which is characterized in that the first seal and described Second seal is rubber seal.

Technical field

The present invention relates to electric saw technical fields, more particularly, to a kind of reciprocating saw.

Background technique

Electric reciprocating saw is the electric tool that sawing is carried out with the saw blade of reciprocating motion.Electric reciprocating saw is the one of electric saw Kind, usually it is made of casing, motor, transmission mechanism, lifter, saw blade, switch etc..Existing reciprocating saw, is led to by motor Crossing gear drives reciprocating lever to move in a straight line, since gear and reciprocating lever are by connection pin connection and gear centre bias, reciprocating lever Limitation only axially moves, and when motor driven gear rotation, reciprocating lever can reciprocal axial telemechanical.It is common reciprocal in the market Point-blank, speed back and forth is the same for the rotation center for sawing general gear and reciprocating lever center.This mode, cutting efficiency It is lower.

Based on this, the present invention provides a kind of reciprocating saws to solve above-mentioned technical problem.

Summary of the invention

The purpose of the present invention is at least solve the not high technical problem of the cutting efficiency of existing linear reciprocal saw.The mesh Be achieved through the following technical solutions:

The first aspect of the present invention proposes a kind of reciprocating saw, including shell, linear reciprocation fortune can be done relative to shell Dynamic reciprocating lever and driving motor, further includes:

Connector, the end of the output shaft of driving motor are provided with drive bevel gear, drive bevel gear and driven wheel of differential Engagement, connector are fixed in the disk of driven wheel of differential, and driven wheel of differential is connect with housing into rotation；

Driving member, driving member one end and connector are rotatablely connected, and the end of one end and reciprocating lever is rotatablely connected, driving member phase It is parallel for the pivot center of connector and the pivot center of driven wheel of differential, and the central axis and driven wheel of differential of reciprocating lever Pivot center it is non-coplanar.

Reciprocating saw according to the present invention uses eccentric form to the driving of reciprocating lever.Motor passes through active conical tooth It takes turns and drives driven wheel of differential rotation, since reciprocating lever is by driven wheel of differential by driving member drive reciprocating lever movement, and back and forth The central axis of bar and the pivot center of driven wheel of differential are non-coplanar, thus produce out the differential seat angle into axial movement, this is just Producing out the movement of reciprocating lever, saw is slow, receives and saws fast effect, and such cutting efficiency is higher.

In addition, reciprocating saw according to the present invention, can also have following additional technical characteristic:

In some embodiments of the invention, connector is columned connecting pin；

The central axis of connecting pin and the centerline axis parallel of driven wheel of differential.

In some embodiments of the invention, further includes: fixing screws, the center of the driven wheel of differential and the fixation Screw is fixedly connected by axle sleeve, and the fixing screws and the shell are rotatablely connected by bearing；

Location nut, location nut are spirally connected with fixing screws, and connecting pin is fixed in the disk of location nut.

In some embodiments of the invention, driving member uses drive rod, and one end of drive rod and connecting pin pass through bearing Rotation connection, the other end and reciprocating lever are rotatablely connected by pin shaft.

It in some embodiments of the invention, further include balance weight, balance weight and connecting pin are rotatablely connected.

It in some embodiments of the invention, further include reciprocal rod seal structure, reciprocal rod seal structure includes:

Sliding bearing, reciprocating lever are connect by sliding bearing with shell；

Installation set, installation set are wholely set with sliding bearing, and reciprocating lever is arranged in installation set；

First seal, first seal are arranged between installation set and shell；

Seal assembly, seal assembly include second seal, and second seal is arranged between installation set and reciprocating lever.

In some embodiments of the invention, first seal is installed in the limiting slot that the exit of shell is arranged in.

In some embodiments of the invention, it is fixedly installed baffle ring on the inner wall of installation set, in the inner wall of installation set End cap is installed by the position of close end, forms the seal chamber for accommodating seal assembly between end cap and baffle ring.

In some embodiments of the invention, seal assembly further includes the oil sucting pad for having suction-operated to oil liquid.

In some embodiments of the invention, oil sucting pad is wool, and seal assembly further includes washer, and washer is located at wool Between circle and end cap.

In some embodiments of the invention, end cap is connect with installation set in an interference fit.

In some embodiments of the invention, first seal and second seal are rubber seal.

Detailed description of the invention

By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention Limitation.And throughout the drawings, identical component is presented with like reference characters.In the accompanying drawings:

Fig. 1 is the top view (concealing partial shell for convenience of observation) of reciprocating saw provided in an embodiment of the present invention；

Fig. 2 is the main view (concealing partial shell for convenience of observation) of reciprocating saw provided in an embodiment of the present invention；

Fig. 3 is the configuration schematic diagram of the reciprocal rod seal structure part of the reciprocating saw of the embodiment of the present invention；

Fig. 4 is the partial structural diagram of the reciprocating saw of the embodiment of the present invention.

Icon: 1- connector；2- driven wheel of differential；3- driving member；4- fixing screws；5- location nut；6- balance weight；7- Pin shaft；

10- sliding bearing；20- installation set；21- annular protrusion；22- baffle ring；23- end cap；30- first seal；40- is close Sealing assembly；41- second is sealed；42- oil sucting pad；43- washer；

The reciprocal rod seal structure of 100-；

200- shell；201- limiting slot；

300- reciprocating lever.

Specific embodiment

The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs The range opened is fully disclosed to those skilled in the art.

It should be understood that term used herein merely for description particular example embodiment purpose, and have no intention into Row limitation.Unless the context clearly indicates otherwise, otherwise singular " one " as used in the text, "one" and " described " Can also indicate to include plural form.The terms "include", "comprise", " containing " and " having " are inclusives, and therefore It indicates the presence of stated feature, step, operations, elements, and/or components, but presence or addition one or more is not precluded A other feature, step, operation, component, assembly unit, and/or their combination.Method and step, process, the Yi Jicao of described in the text It is not interpreted as that them is necessarily required to execute with described or explanation particular order, executes sequence unless explicitly stated otherwise.Also answer The step of working as understanding, can be used additionally or alternatively.

Although can be described in the text using term first, second, third, etc. multiple element, component, region, layer and/ Or section, still, these component, assembly units, region, layer and/or section should not be limited by these terms.These terms can be only For a component, assembly unit, region, layer or section are distinguished with another region, layer or section.Unless context clearly refers to Out, do not implied that when otherwise the term and other numerical terms of such as " first ", " second " etc use in the text sequence or Person's order.Therefore, first element discussed below, component, region, layer or section are in the introduction for not departing from example embodiment In the case of can be referred to as second element, component, region, layer or section.

For ease of description, an element as illustrated in the diagram can be described use space relativeness term in the text Either feature is relative to another element or the relationship of feature, these relativeness terms are, for example, " inside ", " outside ", " interior Side ", " outside ", " following ", " lower section ", " above ", " top " etc..This spatial correlation term is intended to include removing to retouch in figure The different direction of device in use or operation except the orientation drawn.For example, being retouched if the device in figure is overturn State that either the element " below other elements or feature " then will be orientated " In for " below other elements or feature " Above other elements or feature " either " above other elements or feature ".Therefore, exemplary term " in ... lower section " can To include in orientation upper and under.In addition device can be oriented and (be rotated by 90 ° or in other directions) and used herein Spatial correlation descriptor correspondingly explains.

Reciprocating saw embodiment one

As depicted in figs. 1 and 2, a kind of reciprocating saw is provided in the present embodiment, and reciprocating saw includes shell 200, Neng Gouxiang The reciprocating lever 300 and driving motor of straight reciprocating motion are done for shell 200, further includes:

Connector 1, the end of the output shaft of driving motor are provided with drive bevel gear, drive bevel gear and driven wheel of differential 2 engagements, connector 1 are fixed in the disk of driven wheel of differential 2, and driven wheel of differential 2 and shell 200 are rotatablely connected；

Driving member 3,3 one end of driving member and connector 1 are rotatablely connected, and the end of one end and reciprocating lever 300 is rotatablely connected, and are passed Moving part 3 is parallel with the pivot center of driven wheel of differential 2 relative to the pivot center of connector 1, and the central axis of reciprocating lever 300 It is non-coplanar with the pivot center of driven wheel of differential 2.

Reciprocating saw according to the present invention uses eccentric form to the driving of reciprocating lever 300.Motor passes through initiative taper Gear drives driven wheel of differential 2 to rotate, since driven wheel of differential 2 drives reciprocating lever 300 to move by driving member 3, and reciprocating lever The pivot center of 300 central axis and driven wheel of differential 2 is non-coplanar, thus produces eccentric motion, the receipts saw of reciprocating lever 300 With go out as saw stroke, receive saw and go out to saw, a stroke, gear just rotate a circle 360 degree reciprocating lever back and forth, but from mantle Gear 2 is different in the angle for receiving saw and saw process is passed by out, and specifically, driven wheel of differential 2 is along suitable when reciprocating saw works Clockwise rotation (diagram direction is seen), when receipts are sawed, the angle of gear rotation is smaller than going out to saw, and results in receiving and saw fastly, saw is slow out, real When border is cut, saw work is received, cutting efficiency is just improved.

As depicted in figs. 1 and 2, in the optinal plan of the present embodiment, connector 1 is columned connecting pin；

The central axis of connecting pin and the centerline axis parallel of driven wheel of differential 2.

Using columned connecting pin as connector 1, processing plus list, installation is easy, and also facilitates driving member 3 relative to even Outbound rotation, implements simple.

Further, reciprocating saw further include: fixing screws 4, the center of driven wheel of differential 2 and fixing screws 4 are turned by axle sleeve Dynamic connection, fixing screws 4 are fixed on shell；

Location nut 5, location nut 5 are spirally connected with fixing screws 4, and connecting pin is fixed in the disk of location nut 5.

It is by fixing screws 4 that driven driven wheel of differential 2 is fixed, rotate driven wheel of differential 2 by axle sleeve more smooth.It is fixed Position nut 5 plays the role of being located by connecting, and facilitates setting connecting pin.Location nut 5 can be inlaid in the disk of driven wheel of differential 2 It is interior, to save installation space.

Further, driving member 3 uses drive rod, and one end of drive rod and connecting pin are rotatablely connected by bearing, another End is rotatablely connected with reciprocating lever 300 by pin shaft.

It is common rotation connection mode that bearing connects all with pin shaft, and slow-roll stabilization extremely lubricates.The form letter of drive rod Just, handling ease, drive rod can use flat drive rod to folk prescription, and structure is simpler, more convenient to connect with reciprocating lever 300.

It as depicted in figs. 1 and 2, further include balance weight 6 in the optinal plan of the present embodiment, balance weight 6 and connecting pin rotate Connection.

By balance weight 6 come counterweight so that whole device rotate it is more stable steady.Preferably, it balances It is also rotatablely connected by pin shaft 7 between block 6 and shell 200.This set more increases the rotational stability of device.Pin shaft 7 It center should be conllinear with the center of fixing screws 4.