WO2017088106A1 - Power saw - Google Patents

Abstract

A power saw, comprising a base body (200) and at least two chains (100) surrounding the edge of the base body (200). Cutting blades (130) for cutting are provided on the chains (100). The at least two chains (100) are arranged on the edge of the base body (200) side by side. The two chains (100) are disposed around the edge of the base body (200) and arranged side by side. When the power saw runs, the two chains (100) simultaneously move and rotate in the same direction or opposite directions to implement cutting by means of the cutting blades (130) on the chains (100). When the power saw is used for cutting to make a wide cut, the cutting blades (130) on the two chains (100) perform cutting simultaneously, so that power is sufficient and sticking is avoided. Since the two chains (100) run independently, cutting can be completed without a large driving force. When cutting is performed to make a wide cut, cutting achieved by bidirectional motion of two chains (100) is easier than unidirectional cutting achieved by a single chain (100); moreover, the driving force is greatly reduced, materials are saved, and the costs are reduced.

Description

一种动力锯Power saw 技术领域Technical field

本发明涉及锯领域，更具体的说，涉及一种动力锯。The present invention relates to the field of saws and, more particularly, to a power saw.

背景技术Background technique

现有的锯种类多，有人力锯和动力锯；其中，在土木工程项目中，经常需要专业性的动力锯来完成对大型构筑物或岩石的切割，从而清除障碍物并防止发生坍塌事故等目的。该动力锯通过边缘上的尖齿来切割木材、石料、钢材等。There are many types of saws, such as man-made saws and power saws. Among them, in civil engineering projects, professional power saws are often needed to complete the cutting of large structures or rocks, thereby removing obstacles and preventing collapse accidents. . The power saw cuts wood, stone, steel, etc. through sharp teeth on the edges.

现有技术中，中国发明专利(申请号为：201110344930.5)公开了一种气动链条锯，该气动链条锯包括链条锯、空气压缩机、断水保护装置、压力水桶。空气压缩机提供动力来源给链条锯转动，同时通过压力水桶提供在工作过程中的冷却水，当电压带动空气压缩机提供高压空气给链条锯的同时压力水桶输出冷却水和冲洗水，链条锯由前板、后板、链条锯、链条导板、导板托架、主动轮、从动轮、气动马达、调速阀、保护开关、冷却水接口、手柄、手把组成，用于矿井中的快速切割。该气动链条锯结构简单、工作效率高、安全性好。In the prior art, the Chinese invention patent (application number: 201110344930.5) discloses a pneumatic chain saw, which includes a chain saw, an air compressor, a water shutoff protection device, and a pressure water bucket. The air compressor provides a power source for the chain saw to rotate, while providing cooling water during the working process through the pressure bucket. When the voltage drives the air compressor to provide high-pressure air to the chain saw, the pressure bucket outputs cooling water and flushing water, and the chain saw is Front plate, rear plate, chain saw, chain guide, guide bracket, drive wheel, driven wheel, air motor, speed control valve, protection switch, cooling water interface, handle, handle, for rapid cutting in the mine. The pneumatic chain saw has a simple structure, high work efficiency and good safety.

中国发明专利(申请号为：201310341563.2)公开了一种锯石链条，其包括若干排列均匀的防反弹中导齿，相邻两个防反弹中导齿之间的顶部和底部分别交替设置有连接片和折弯连接片，折弯连接片的侧部固定有切削刀头，所述防反弹中导齿及上下两侧交替设置的连接片和折弯连接片通过铆钉连接成链状结构。该发明专利的锯石链条结构稳固，采用了连接片和折弯连接片配合的结构方式，折弯连接片弯折成两个互成直角的固定板，分别为底板和刀头固定板，底板通过铆钉与防反弹中导齿连接，刀头固定板通过卡台固定切削刀头，切削切头与刀头固定板接触的边通过焊接加固，既保证了切削刀头的强度又使连接片的硬度得到提高，并且便于维修及换刀头，使用寿命得到大大延长。 The Chinese invention patent (application number: 201310341563.2) discloses a sawstone chain comprising a plurality of anti-rebound middle guide teeth arranged uniformly, and the top and bottom between adjacent two anti-bounce middle guide teeth are alternately arranged with a connection The sheet and the bending connecting piece are fixed to the side of the bending connecting piece with a cutting bit, and the anti-rebound middle guiding tooth and the connecting piece and the bending connecting piece which are alternately arranged on the upper and lower sides are connected by a rivet into a chain structure. The sawstone chain structure of the invention patent is stable, adopts a structure in which a connecting piece and a bending connecting piece are matched, and the bending connecting piece is bent into two fixing plates which are at right angles to each other, respectively, a bottom plate and a cutter head fixing plate, and a bottom plate The rivet is connected with the anti-rebound middle guide tooth, and the cutter head fixing plate fixes the cutting cutter head through the clamping table, and the edge of the cutting cutting head contacting the cutter head fixing plate is reinforced by welding, thereby ensuring the strength of the cutting cutter head and the connecting piece. The hardness is improved, and the repair and replacement of the cutter head are facilitated, and the service life is greatly extended.

现有的动力锯都是在其基体的边沿上环绕一链条，并在该链条上固定连接切割刀，通过该动力锯的动力驱动该链条转动，并通过链条的转动使得链条上的切割刀实现切割。对于切割岩石等的动力锯而言，在切割过程中，需求的动力大。对于需要切割较宽的切口时需要配备宽度较大的切割刀，从而链条的宽度相应增加，需求的动力也大大增加。若动力不足，在切割过程中容易卡死，无法进行切割，若动力充足，则对动力锯的整体要求较高，这样就大大增加了动力锯的成本。The existing power saws are surrounded by a chain on the edge of the base body, and the cutting knife is fixedly connected to the chain, and the chain is rotated by the power of the power saw, and the cutting knife on the chain is realized by the rotation of the chain. Cutting. For power saws that cut rocks, etc., the power required is large during the cutting process. For the need to cut a wide slit, a larger cutter is required, so that the width of the chain is correspondingly increased, and the power required is greatly increased. If the power is insufficient, it is easy to be stuck during the cutting process, and the cutting cannot be performed. If the power is sufficient, the overall requirement for the power saw is high, which greatly increases the cost of the power saw.

发明内容Summary of the invention

本发明所要解决的技术问题是提供一种更加便于切割的动力锯。The technical problem to be solved by the present invention is to provide a power saw that is more convenient to cut.

本发明的目的是通过以下技术方案来实现的：The object of the present invention is achieved by the following technical solutions:

一种动力锯，包括基体和至少两条环绕在所述基体边沿上的链条，所述链条上设置有用于切割的切割刀，所述的至少两条链条并排排列在所述基体边沿上。A power saw includes a base body and at least two chains surrounding the edge of the base body, the chain being provided with a cutting blade for cutting, the at least two chains being arranged side by side on the edge of the base body.

优选的，当所述链条为两条时，所述的两条链条的运动方向相反。这是本发明设置链条的一种具体方案，在基体的边沿上环绕设置两条链条，此两条链条并排设置；当动力锯工作时动力锯的动力同时驱动该两条链条，使得此两条链条在相反方向上运动、旋转。使用该链条在在实际切割岩石时，两条旋转方向相反的链条同时转动对岩石进行切割，这样对切割点的破坏能力更强，切割效果更佳。然而，两条链条在相同方向上运动也是可行的。Preferably, when the chain is two, the two chains move in opposite directions. This is a specific solution of the present invention. The two chains are arranged on the edge of the base body, and the two chains are arranged side by side; when the power saw works, the power of the power saw simultaneously drives the two chains, so that the two The chain moves and rotates in the opposite direction. When the chain is actually cut, the two chains rotating in opposite directions rotate at the same time to cut the rock, so that the cutting point is more damaged and the cutting effect is better. However, it is also feasible to move the two chains in the same direction.

优选的，所述动力锯还包括设置在所述基体上的磨片，用于打磨所述切割刀切割的切割面。现有技术中，在切割岩石时，首先通过链条的转动切割出切口，并沿切口继续切割，在切割过程完成后，还需单独通过打磨工具对切口两侧的切割面进行打磨处理；而本发明的动力锯在通过链条切割时，同时还通过基体上的磨片对切割面进行打磨，使用扩孔原理实现有限打磨量。不必再单独使用打磨工具对切割面进行打磨，打磨方式简单、方便，容易实现。另外，在切割的时会使用有益的靶向高频双向振动，产生较大的振动，如果切割完成后再单独使用打磨工具对切割面进行打磨还会产生较大的振动，这样容易对切割面，甚至对岩石本身造成较大的损坏，容易破坏切割面或延伸。而本发明在振动过程中还实现了对切割面的打磨，从而防止因单独打磨再次产生振动而对切 割面造成损坏。Preferably, the power saw further includes a grinding blade disposed on the base body for sanding the cutting surface of the cutting blade. In the prior art, when cutting the rock, the slit is first cut by the rotation of the chain, and the cutting is continued along the slit. After the cutting process is completed, the cutting surface on both sides of the slit is separately polished by the grinding tool; When the power saw of the invention is cut by the chain, the cutting surface is also polished by the grinding disc on the base body, and the limited grinding amount is achieved by using the reaming principle. It is no longer necessary to use a grinding tool to polish the cutting surface alone. The grinding method is simple, convenient and easy to implement. In addition, beneficially targeted high-frequency two-way vibrations are used during cutting to generate large vibrations. If the cutting surface is polished separately after the cutting is completed, large vibrations are generated, which makes it easy to cut the surface. Even causing greater damage to the rock itself, it is easy to break the cutting surface or extend. However, the present invention also achieves the grinding of the cutting surface during the vibration process, thereby preventing the cutting from being generated by the separate grinding. The cut surface caused damage.

优选的，所述磨片可拆卸的固定在所述基体上。把磨片可拆卸的固定在基体上方便将磨片从基体上拆卸或安装固定，一旦磨片需要更换则可将磨片拆卸并换上适合的磨片。Preferably, the grinding disc is detachably fixed to the base body. The detachable fixing piece is fixed on the base body to facilitate the removal or mounting of the grinding piece from the base body. Once the grinding piece needs to be replaced, the grinding piece can be disassembled and replaced with a suitable grinding piece.

优选的，所述基体设置有用于放置所述磨片的燕尾槽。在基体上设置燕尾槽方便安装、拆卸磨片。Preferably, the base body is provided with a dovetail groove for placing the grinding disc. A dovetail groove is arranged on the base to facilitate installation and disassembly of the grinding disc.

优选的，所述基体的两侧分别设置有所述的磨片。在基体的两侧分别设置磨片，在动力锯切割时通过基体两侧的磨片分别对切割出来的两个切割面进行打磨，一次性完成切割和打磨的目的。Preferably, the two sides of the base body are respectively provided with the grinding discs. Grinding discs are respectively arranged on both sides of the base body, and the two cutting surfaces cut out are respectively polished by the grinding discs on both sides of the base body during the cutting of the power saw, and the cutting and grinding are completed at one time.

优选的，所述磨片包括粗磨片和细磨片。根据需求可选择是用粗磨片还是使用细磨片，当然，也可以先通过粗磨片打磨后再使用细磨片进行打磨。Preferably, the grinding disc comprises a coarse grinding disc and a fine grinding disc. Depending on the choice, it is possible to use a coarse grinding disc or a fine grinding disc. Of course, it can also be ground by a coarse grinding disc and then polished with a fine grinding disc.

优选的，所述粗磨片和细磨片设置在所述基体的同一面。这是磨片打磨的一种具体方式。Preferably, the coarse grinding disc and the fine grinding disc are disposed on the same side of the base body. This is a specific way of grinding the sand.

优选的，所述基体的一面上设置所述的粗磨片和细磨片，与所述基体的一面相对的另一面上也设置有所述的粗磨片和细磨片。这是磨片打磨的另一种方式。Preferably, the rough grinding piece and the fine grinding piece are disposed on one side of the base body, and the rough grinding piece and the fine grinding piece are also disposed on the other side opposite to one side of the base body. This is another way of grinding the sand.

优选的，当所述粗磨片和细磨片都安装固定在所述基体上时，所述粗磨片凸出于所述基体上的部分的高度低于或等于所述细磨片凸出于所述基体上的部分的高度，所述粗磨片相比细磨片靠近所述链条切割方向。这样切割过程中，先通过粗磨片对切割面进行第一次的打磨，继续切割细磨片再对粗磨片进行打磨过后的切割面进行进一步的打磨。这样通过粗磨片和细磨片分别对切割面进行打磨，使得打磨效果更佳。Preferably, when the rough grinding piece and the fine grinding piece are both mounted on the base body, the height of the portion of the rough grinding piece protruding from the base body is lower than or equal to the fine grinding piece protruding The lappet is closer to the chain cutting direction than the fine lap on the height of the portion on the substrate. In this cutting process, the cutting surface is first polished by the coarse grinding sheet, the fine grinding sheet is continuously cut, and the cutting surface after the rough grinding sheet is polished is further polished. In this way, the cutting surface is polished by the coarse grinding plate and the fine grinding piece, respectively, so that the grinding effect is better.

优选的，所述磨片为弧形结构。这是磨片的一种具体结构，弧形结构的磨片打磨面积大，效果更好。Preferably, the grinding disc has an arc structure. This is a specific structure of the grinding disc, and the grinding surface of the curved structure has a large grinding area and a better effect.

优选的，所述磨片靠近所述基体边沿设置。这是设置磨片位置的一种具体方式，这样设置磨片打磨面积大，效果更好。Preferably, the grinding disc is disposed adjacent to the edge of the base body. This is a specific way to set the position of the grinding disc, so that the grinding area of the grinding disc is set to be large and the effect is better.

优选的，所述磨片的两端位于所述基体的中心线位置。这是设置磨片端部位置的一种具体方式，这样设置方便磨片打磨。Preferably, both ends of the grinding disc are located at a center line position of the base body. This is a specific way of setting the position of the end of the plate, so that the setting is convenient for grinding.

优选的，当所述磨片固定在所述燕尾槽内时所述磨片上的用于打磨的部位凸出于所述基体表面。仅把磨片上用于打磨的部分凸出于基体表面，以便打磨 的部分对切割面进行打磨；且防止磨片上的其他位置凸出于基体表面而增加基体厚度。Preferably, the portion for sanding on the grinding pad protrudes from the surface of the substrate when the grinding plate is fixed in the dovetail groove. Only the portion of the plate used for sanding protrudes from the surface of the substrate for sanding The portion is polished to the cut surface; and the other portions on the plate are prevented from protruding beyond the surface of the substrate to increase the thickness of the substrate.

优选的，所述动力锯还包括设置在所述基体上的消音装置。动力锯在切割过程中产生较大噪音，对周围环境造成很大的影响，通过此消音装置可减小噪音、甚至消除噪音，从而防止在使用动力锯影响到周围环境。Preferably, the power saw further includes a sound attenuating device disposed on the base. The power saw produces a large noise during the cutting process, which has a great influence on the surrounding environment. The noise reduction device can reduce the noise and even eliminate the noise, thereby preventing the use of the power saw to affect the surrounding environment.

优选的，所述消音装置包括设置在所述基体上消音孔。消音孔用于消音，简单、方便，消音效果直接、有效。Preferably, the muffling device comprises a silencing hole disposed on the base body. The muffler hole is used for silencing, which is simple and convenient, and the muffling effect is direct and effective.

优选的，所述消音孔为多个，按照预设规则进行排列。多个消音孔消音效果更好。Preferably, the plurality of silencing holes are arranged according to a preset rule. Multiple silencing holes are better for muting.

优选的，所述消音孔为多个，所述多个消音孔的大小不同。多个消音孔大小设置不同，使得消音效果更好，不会产生共鸣。Preferably, the plurality of silencing holes are different, and the plurality of silencing holes are different in size. Different muffler hole sizes are set differently, which makes the muffling effect better and does not resonate.

优选的，所述消音装置为设置在所述基体上的消音器。这是减小噪音的另一种方式，在基体上安***器用于消音，容易实现、效果好。Preferably, the muffling device is a muffler disposed on the base. This is another way to reduce noise. A silencer is installed on the base for noise reduction, which is easy to implement and effective.

优选的，所述动力锯还包括设置在所述基体内的驱动机构，所述驱动机构与所述磨片连接，用于驱动所述磨片。这是通过磨片对切割面进行打磨的另一种方式，由此驱动机构驱动磨片使得磨片产生运动，这样磨片对切割面的打磨效果更佳。Preferably, the power saw further includes a driving mechanism disposed in the base body, and the driving mechanism is coupled to the grinding plate for driving the grinding plate. This is another way of sanding the cutting surface by the grinding disc, whereby the driving mechanism drives the grinding disc to cause the grinding disc to move, so that the grinding disc has a better grinding effect on the cutting surface.

优选的，所述驱动机构与所述磨片一端连接，所述磨片另一端连接有弹性件；当所述驱动机构驱动所述磨片时所述磨片受力压缩所述弹性件；当所述驱动机构的作用力从所述磨片上消失时所述弹性件伸展使所述磨片运动。这是驱动机构驱动磨片运动的一种具体方式，通过驱动机构的驱动以及弹性件的伸缩作用更加便于磨片进行运动，使得打磨效果更好。Preferably, the driving mechanism is connected to one end of the grinding disc, and the other end of the grinding disc is connected with an elastic member; when the driving mechanism drives the grinding disc, the grinding disc is forced to compress the elastic member; The elastic member is stretched to move the grinding blade when the force of the driving mechanism disappears from the grinding plate. This is a specific way for the driving mechanism to drive the movement of the grinding disc. The driving of the driving mechanism and the expansion and contraction of the elastic member further facilitate the movement of the grinding disc, so that the grinding effect is better.

优选的，所述驱动机构包括中心轴、和固定在所述中心轴上的拨杆及凸轮，所述拨杆和凸轮可在所述中心轴上进行往复运动，所述拨杆和磨片固定连接。拨杆和磨片的一端固定连接，凸轮运动使得拨杆随之运动，进而由拨杆驱动打磨片进行运动，实现打磨的目的。Preferably, the driving mechanism comprises a central shaft, and a lever and a cam fixed on the central shaft, the lever and the cam are reciprocable on the central shaft, and the lever and the fixed plate are fixed connection. The lever and the one end of the grinding piece are fixedly connected, and the movement of the cam causes the lever to move accordingly, and then the rotating piece is driven by the lever to perform the grinding.

优选的，所述磨片上设置有用于销钉穿过的定位孔，所述基体上设置有用于所述销钉穿过的滑动孔，所述销钉可在所述滑动孔内运动。通过销钉对磨片实现定位，限制磨片在运动方向上进行运动，防止磨片在其他方向上运动或防止磨片偏离运动方向。另外，销钉对磨片还起到紧固作用。 Preferably, the grinding plate is provided with a positioning hole for the pin to pass through, and the base body is provided with a sliding hole for the pin to pass through, and the pin can move in the sliding hole. The positioning of the grinding plate is achieved by the pin, which restricts the movement of the grinding piece in the moving direction, prevents the grinding piece from moving in other directions or prevents the grinding piece from deviating from the moving direction. In addition, the pin also acts as a fastening to the plate.

优选的，所述弹性件为弹簧。弹簧的弹性好，便于伸缩。Preferably, the elastic member is a spring. The spring has good elasticity and is easy to expand and contract.

优选的，所述凸轮位于所述拨杆根部。这是设置凸轮位置的一种具体方式，这样使得凸轮和拨杆相邻设置，使得凸轮对拨杆的控制效果更好。Preferably, the cam is located at the root of the lever. This is a specific way of setting the cam position so that the cam and the lever are placed adjacent to each other, so that the cam has better control effect on the lever.

优选的，所述驱动机构还包括设置在所述拨杆根部的平衡杆，所述平衡杆和拨杆之间形成夹角，所述夹角的范围是大于零度，小于或等于九十度。设置平衡杆起到平衡的作用，使得凸轮在运动时保持整个驱动机构稳定。另外，平衡杆还起到限定凸轮运动的作用。防止凸轮的运动轨迹偏移。Preferably, the driving mechanism further includes a balance bar disposed at a root of the lever, and an angle formed between the balance bar and the lever, the angle of the angle being greater than zero degrees and less than or equal to ninety degrees. The balance bar is set to balance, so that the cam keeps the entire drive mechanism stable while moving. In addition, the balance bar also functions to define cam motion. Prevent the cam's motion track from shifting.

优选的，所述凸轮位于所述拨杆和平衡杆之间。把凸轮设置在拨杆和平衡杆之间，不仅使得凸轮对拨杆的控制效果好，而且平衡杆对整个驱动机构起到的平衡作用更好。Preferably, the cam is located between the lever and the balance bar. The cam is disposed between the lever and the balance bar, which not only makes the cam have a good control effect on the lever, but also has a balance effect on the entire driving mechanism.

优选的，所述驱动机构还包括设置在所述中心轴上的传动齿轮，所述传动齿轮Preferably, the drive mechanism further includes a transmission gear disposed on the central shaft, the transmission gear

优选的，所述驱动机构还包括设置在所述拨杆根部的固定杆，所述固定杆和基体固定连接。驱动机构通过固定杆与基体固定连接，使得驱动机构固定牢固，正常工作。Preferably, the driving mechanism further comprises a fixing rod disposed at a root of the lever, the fixing rod and the base body being fixedly connected. The driving mechanism is fixedly connected to the base body through the fixing rod, so that the driving mechanism is fixed firmly and works normally.

优选的，所述基体上设置有散热孔。散热孔用于散热，对基体起到保护作用。Preferably, the base body is provided with a heat dissipation hole. The heat dissipation holes are used for heat dissipation to protect the substrate.

本发明的有益效果是：本发明在基体的边沿上环绕设置两条链条，且并排排列，在动力锯运作时，两条链条同时相向或相反运动、旋转，通过链条上的切割刀实现切割的目的；该动力锯切割较宽或较窄的切口时，通过两条链条上的切割刀同时进行切割，动力充足，防止卡死；而且两条链条分别进行运作，不需要很大的驱动力就能完成切割。从而本发明在切割的切口较宽或较窄时通过两条链条实现切割相比单个链条进行切割更加容易实现、大大减少驱动力即可实现切割的目的，节省材料，减少成本。The invention has the beneficial effects that the present invention surrounds two chains on the edge of the base body and is arranged side by side. When the power saw is in operation, the two chains move and rotate at the same time or opposite to each other, and the cutting is performed by the cutting knife on the chain. Purpose: When the power saw cuts a wide or narrow slit, the cutter is cut simultaneously by the cutting knives on the two chains, and the power is sufficient to prevent jamming; and the two chains operate separately, and do not require a large driving force. Can complete the cutting. Therefore, the invention can realize the cutting by the two chains when the cutting slit is wider or narrower than the single chain, and the cutting force can be realized by greatly reducing the driving force, saving materials and reducing the cost.

附图说明DRAWINGS

为了更清楚地说明本发明的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the technical solutions of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, which are common in the art. For the skilled person, other drawings can be obtained from these drawings without any creative work.

图1是本发明实施例一动力锯的整体结构示意图；1 is a schematic view showing the overall structure of a power saw according to an embodiment of the present invention;

图2是图1中B的放大图；Figure 2 is an enlarged view of B in Figure 1;

图3是图1的侧视图；Figure 3 is a side view of Figure 1;

图4是图3中A的放大图；Figure 4 is an enlarged view of A in Figure 3;

图5是本发明实施例切割刀的结构示意图；Figure 5 is a schematic structural view of a cutting blade according to an embodiment of the present invention;

图6是图5的截面图；Figure 6 is a cross-sectional view of Figure 5;

图7是本发明实施例二动力锯的整体结构示意图；7 is a schematic view showing the overall structure of a power saw according to Embodiment 2 of the present invention;

图8是图7在C-C方向的视图；Figure 8 is a view of Figure 7 in the C-C direction;

图9是图8中C的放大图；Figure 9 is an enlarged view of C in Figure 8;

图10是本发明实施例粗磨片的结构示意图；Figure 10 is a schematic structural view of a rough grinding piece according to an embodiment of the present invention;

图11是图10的俯视图；Figure 11 is a plan view of Figure 10;

图12是图11中D的放大图；Figure 12 is an enlarged view of D in Figure 11;

图13是本发明实施例细磨片的结构示意图；Figure 13 is a schematic structural view of a fine grinding sheet according to an embodiment of the present invention;

图14是图13的俯视图；Figure 14 is a plan view of Figure 13;

图15是图14中E的放大图；Figure 15 is an enlarged view of E in Figure 14;

图16是本发明实施例三动力锯的整体结构示意图；16 is a schematic view showing the overall structure of a power saw according to a third embodiment of the present invention;

图17是图16中F的放大图；Figure 17 is an enlarged view of F in Figure 16;

图18是本发明实施例三驱动机构的结构示意图；18 is a schematic structural view of a third driving mechanism according to an embodiment of the present invention;

图19是图18在B-B方向的截面图；Figure 19 is a cross-sectional view of Figure 18 in the direction of B-B;

图20也是本发明实施例三驱动机构的结构示意图；20 is also a schematic structural view of a third driving mechanism according to an embodiment of the present invention;

图21是本发明实施例三基体的结构示意图；21 is a schematic structural view of a third substrate according to an embodiment of the present invention;

图22是图21的俯视图；Figure 22 is a plan view of Figure 21;

图23是图22中G的放大图；Figure 23 is an enlarged view of G in Figure 22;

图24是本发明实施例三动力锯的整体结构示意图；Figure 24 is a schematic view showing the overall structure of a power saw according to a third embodiment of the present invention;

图25是图24中H的放大图；Figure 25 is an enlarged view of H in Figure 24;

图26是本发明实施例三动力锯的整体结构示意图；26 is a schematic view showing the overall structure of a power saw according to a third embodiment of the present invention;

图27是图26中I的放大图。Figure 27 is an enlarged view of I in Figure 26.

其中：10、动力锯；100、链条；110、正转链条；120、反转链条；130、切割刀；131、正转切割刀；132、反转切割刀；133、驱动孔；134、链条孔；135、刀头；136、刀根；200、基体；210、燕尾槽；211、第一燕尾槽；212、 第二燕尾槽；220、拨杆槽；230、弹簧槽；240、滑动孔；250、链条槽；251、第一链条槽；252、第二链条槽；300、磨片；310、粗磨片；311、第一孔；312、定位孔；313、第二孔；314、第一打磨头；320、细磨片；321、第三孔；322、定位孔；323、第四孔；324、第二打磨头；400、驱动机构；410、拨杆；411、第一拨杆；412、第二拨杆；413、平衡杆；420、凸轮；430、中心轴；440、固定杆；450、传动齿轮；460、连接片；500、弹性件；600、消音孔；700、散热孔。Among them: 10, power saw; 100, chain; 110, forward chain; 120, reverse chain; 130, cutting knife; 131, forward rotation cutter; 132, reverse cutter; 133, drive hole; 134, chain Hole; 135, cutter head; 136, root; 200, base; 210, dovetail slot; 211, first dovetail slot; Second dovetail slot; 220, lever slot; 230, spring slot; 240, sliding hole; 250, chain slot; 251, first chain slot; 252, second chain slot; 300, grinding disc; 310, coarse grinding 311, first hole; 312, positioning hole; 313, second hole; 314, first grinding head; 320, fine grinding plate; 321, third hole; 322, positioning hole; 323, fourth hole; Second grinding head; 400, driving mechanism; 410, lever; 411, first lever; 412, second lever; 413, balance bar; 420, cam; 430, central axis; 440, fixed rod; Transmission gear; 460, connecting piece; 500, elastic member; 600, silencer hole; 700, heat dissipation hole.

具体实施方式detailed description

本发明公开一种动力锯，包括基体和至少两条环绕在所述基体边沿上的链条，所述链条上设置有用于切割的切割刀，所述的至少两条链条并排排列在所述基体边沿上。本发明以切割岩石为例，当然，本发明的动力锯并不限于切割岩石，还可以切割金属等。本发明在基体的边沿上环绕设置两条链条，且并排排列，在动力锯运作时，即动力锯在切割岩石时，两条链条同时运动、旋转，通过链条上的切割刀实现切割的目的；该动力锯切割较宽的切口时，通过两条链条上的切割刀同时进行切割，动力充足，防止卡死；而且两条链条分别进行运作，不需要很大的驱动力才能完成切割。从而本发明在切割的切口较宽时通过两条链条实现切割相比单个链条进行切割更加容易实现、大大减少驱动力即可实现切割的目的，节省材料，减少成本。The invention discloses a power saw comprising a base body and at least two chains surrounding the edge of the base body, the chain being provided with a cutting blade for cutting, the at least two chains being arranged side by side at the edge of the base body on. The present invention is exemplified by cutting rock. Of course, the power saw of the present invention is not limited to cutting rock, and can cut metal or the like. The invention surrounds two chains on the edge of the base body and is arranged side by side. When the power saw is operated, that is, when the power saw cuts the rock, the two chains move and rotate at the same time, and the cutting is performed by the cutting knife on the chain; When the power saw cuts a wide slit, the cutting is performed simultaneously by the cutting knives on the two chains, and the power is sufficient to prevent jamming; and the two chains operate separately, and no large driving force is required to complete the cutting. Therefore, the invention realizes the cutting by the two chains when the cutting slit is wide, the cutting is easier to realize than the single chain, the driving force is greatly reduced, the cutting is achieved, the material is saved, and the cost is reduced.

下面结合附图和较佳的实施例对本发明作进一步说明。The invention will now be further described with reference to the drawings and preferred embodiments.

在本发明的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包 含。In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship of the "bottom", "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device. Or the components must have a particular orientation, are constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, "a plurality" means two or more unless otherwise stated. In addition, the term "comprises" and any variants thereof is intended to cover non-exclusive packages. Contains.

在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

本发明公开了一种动力锯，如图1至27所示，该动力锯27可以由电提供动力，也可以由压缩机等提供动力，本实施例优选使用电为动力锯提供动力。The present invention discloses a power saw, as shown in Figures 1 through 27, which can be powered by electricity or powered by a compressor or the like. This embodiment preferably uses electricity to power the power saw.

该动力锯10包括有动力源(图中未示出)、基体200和至少两条环绕在所述基体边沿上的链条100，所述链条上设置有用于切割的切割刀130，通过该切割刀130可对岩石等进行切割，本实施例以切割岩石为例进行说明，但，此切割刀130并不限于切割岩石。所述的至少两条链条并排排列在所述基体200边沿上。The power saw 10 includes a power source (not shown), a base body 200, and at least two chains 100 surrounding the base rim, the chain being provided with a cutting blade 130 for cutting, through which the cutting blade is disposed 130 can cut the rock or the like. This embodiment is described by taking the cut rock as an example. However, the cutting blade 130 is not limited to the cut rock. The at least two chains are arranged side by side on the edge of the base 200.

其中，如图1至6所示，作为本实施例的优选方案，并参见图7-27，本实施例的链条100优选采用两条，在基体200的边沿上环绕设置两条链条，此两条链条并排设置；并且动力源为两条链条提供相反方向的动力，从而使得两条链条的运动方向相反，或者说两条链条的旋转方向相反。As shown in FIG. 1 to FIG. 6 , as a preferred embodiment of the present embodiment, and referring to FIG. 7-27 , the chain 100 of the embodiment is preferably two, and two chains are arranged on the edge of the base 200. The chains are arranged side by side; and the power source provides power to the two chains in opposite directions such that the two chains move in opposite directions, or the two chains rotate in opposite directions.

具体的，参见图4，此两条链条如图4中示出的正转链条110和反转链条120。当动力锯10工作时动力锯10的动力源同时驱动该两条链条，使得此两条链条在相反方向上运动、旋转。使用该链条在在实际切割岩石时，两条旋转方向相反的链条同时转动对岩石进行切割，这样对切割点的破坏能力更强，切割效果更佳。Specifically, referring to FIG. 4, the two chains are the forward chain 110 and the reverse chain 120 as shown in FIG. When the power saw 10 is in operation, the power source of the power saw 10 simultaneously drives the two chains such that the two chains move and rotate in opposite directions. When the chain is actually cut, the two chains rotating in opposite directions rotate at the same time to cut the rock, so that the cutting point is more damaged and the cutting effect is better.

然而，两条链条在相同方向上运动也是可行的，并且同样能够起到增加破坏岩石的作用。当然，根据实际切割过程中的需要，可以在基体的边沿上环绕、并排排列3个链条、4个链条或其他个数的链条。However, it is also feasible for the two chains to move in the same direction, and also to increase the damage to the rock. Of course, according to the needs of the actual cutting process, three chains, four chains or other numbers of chains can be arranged side by side on the edge of the substrate.

其中，本实施例两个链条的运动速度相同，这样使得两个链条的切割效果更佳。然后，可根据实际切割的需要，可以设置两个链条的运动速度不同，比如，一个链条的运动速度快，一个链条的运动速度慢。或者两条链条的运动方向相同，运动速度不同。Wherein, the movement speeds of the two chains of the embodiment are the same, so that the cutting effect of the two chains is better. Then, according to the actual cutting needs, the speed of the two chains can be set differently. For example, the speed of one chain is fast, and the speed of one chain is slow. Or the two chains move in the same direction and have different speeds of movement.

需要说明的，对于本领域的技术人员而言，两条链条在运动方向相同或相 反、运动的速度相同或不同、或其他等的任何组合方式都在本发明的保护范围内。以及多条链条在运动方向相同或相反、运动的速度相同或不同、或其他等的任何组合都在本发明的保护范围内。It should be noted that, for those skilled in the art, the two chains are in the same direction or phase. Any combination of the same or different speeds of motion, or the like, is within the scope of the present invention. And any combination of a plurality of chains having the same or opposite directions of motion, the same or different speeds of motion, or the like is within the scope of the present invention.

如图5和图6所示，切割刀130上设置有链条孔134，链条100上穿过该链条孔134串接有多个切割刀130。切割刀130一端设置有尖端的刀头135，另一端设置有刀根136；该尖端呈斜坡状，这样方便切割岩石。其中，驱动孔133。参见图2，正转链条110和反转链条120上的切割刀130的刀头135尖端方向相反，以便进行切割。As shown in FIGS. 5 and 6, the cutter blade 130 is provided with a chain hole 134 through which a plurality of cutter blades 130 are connected in series. The cutting blade 130 is provided with a tip end 135 at one end and a root 136 at the other end; the tip is sloped to facilitate cutting the rock. Among them, the drive hole 133. Referring to Fig. 2, the tips of the cutter heads 135 of the cutters 130 on the forward chain 110 and the reverse chain 120 are opposite in direction for cutting.

其中，基体200的边沿上设置有两个相同的用于安装固定链条100的链条槽250，该链条槽250分别为第一链条槽251和第二链条槽252，其中，第一链条槽251安装固定正转链条110，第一链条槽251适合正转链条110设置；第二链条槽252用于安装固定反转链条120，第二链条槽252适合反转链条120设置。参见图23，第一链条槽251和第二链条槽252之间形成隔板，该隔板的厚度小，以便两条链条在切割时更加便于切割。Wherein, the edge of the base body 200 is provided with two identical chain slots 250 for mounting the fixed chain 100. The chain slots 250 are respectively a first chain slot 251 and a second chain slot 252, wherein the first chain slot 251 is installed. The forward chain 111 is fixed, the first chain groove 251 is adapted to be disposed in the forward chain 110; the second chain groove 252 is used to mount the fixed reverse chain 120, and the second chain groove 252 is adapted to be disposed in the reverse chain 120. Referring to Fig. 23, a partition is formed between the first chain groove 251 and the second chain groove 252, and the thickness of the partition is small so that the two chains are more easily cut when cut.

作为本发明的优选实施例，如图8至15所示，且参见图1至7和图16至27，本实施例的动力锯10的基体200上设置有磨片300，所述磨片300用于打磨切割刀130切割出的切割面。现有技术中，在切割岩石时，首先通过链条的转动切割出切口，并沿切口继续切割，在切割过程完成后，还需单独通过打磨工具对切口两侧的切割面进行打磨处理；而本发明的动力锯在通过链条切割时，同时还通过基体上的磨片对切割面进行打磨，不必再单独使用打磨工具对切割面进行打磨，打磨方式简单、方便，容易实现。另外，在切割的时会产生较大的振动，如果切割完成后再单独使用打磨工具对切割面进行打磨还会产生较大的振动，这样容易对切割面，甚至对岩石本身造成较大的损坏，容易破坏切割面或延伸。而本发明在振动过程中还实现了对切割面的打磨，从而防止因单独打磨再次产生振动而对切割面造成损坏。As a preferred embodiment of the present invention, as shown in FIGS. 8 to 15, and referring to FIGS. 1 to 7 and FIGS. 16 to 27, the base 200 of the power saw 10 of the present embodiment is provided with a grinding plate 300, and the grinding plate 300 is provided. It is used to polish the cutting surface cut by the cutting blade 130. In the prior art, when cutting the rock, the slit is first cut by the rotation of the chain, and the cutting is continued along the slit. After the cutting process is completed, the cutting surface on both sides of the slit is separately polished by the grinding tool; When the power saw of the invention is cut by the chain, the cutting surface is also polished by the grinding plate on the base body, and the grinding surface is not required to be polished by the grinding tool alone, and the grinding method is simple, convenient and easy to implement. In addition, when the cutting is performed, a large vibration is generated. If the grinding tool is used alone to polish the cutting surface after the cutting is completed, a large vibration is generated, which is likely to cause a large damage to the cutting surface and even the rock itself. It is easy to break the cutting surface or extend. However, the present invention also achieves the grinding of the cutting surface during the vibration process, thereby preventing the cutting surface from being damaged by the vibration generated by the separate grinding.

其中，作为本实施例的一种方案：基体200的边沿上环绕设置有两条链条100(正转链条110和反转链条120)。然而，仅仅在基体的边沿上环绕设置一条链条或者其他条数的链条也是可以的。基体200的两个侧面上分别固定连接有该磨片300，在基体的两侧分别设置磨片，在动力锯10切割时通过基体200两侧的磨片300分别对切割出来的两个切割面进行打磨，一次性完成切割和打 磨的目的，简单、方便。然而，仅仅在基体的一个侧面上设置磨片也是可以的，根据实际需要，如果仅仅需要对切割口的一个切割面进行打磨，则仅可以仅在基体的一个侧面上设置磨片以便打磨。Wherein, as a solution of the embodiment, two chains 100 (the forward chain 110 and the reverse chain 120) are disposed around the edge of the base 200. However, it is also possible to simply arrange a chain or other number of chains around the edge of the substrate. The grinding plate 300 is fixedly connected to the two sides of the base body 200 respectively, and the grinding plates are respectively disposed on both sides of the base body, and the two cutting faces respectively cut by the grinding plate 300 on both sides of the base body 200 when the power saw 10 is cut are respectively cut. Grinding, cutting and hitting in one go The purpose of grinding is simple and convenient. However, it is also possible to provide a grinding disc only on one side of the base body. According to actual needs, if only one cutting surface of the cutting opening is required to be ground, only the grinding disc can be provided on one side of the base body for sanding.

具体的，参见图21，基体200上设置有用于放置所述磨片300的燕尾槽210，在基体上设置燕尾槽方便安装、拆卸磨片，当然，设置其他结构的槽用于放置磨片也是可以的。该磨片放置于燕尾槽内该磨片300上用于打磨的部位，即打磨头凸出于基体的侧表面以便打磨。而且，这样设置还防止磨片上的其他位置凸出于基体表面而增加基体厚度。Specifically, referring to FIG. 21, the base body 200 is provided with a dovetail groove 210 for placing the grinding plate 300, and a dovetail groove is arranged on the base body to facilitate installation and disassembly of the grinding piece. Of course, the groove of the other structure is also used for placing the grinding piece. Yes. The plate is placed in the dovetail groove in the portion of the plate 300 for sanding, i.e., the sanding head protrudes from the side surface of the substrate for sanding. Moreover, such an arrangement also prevents other locations on the plate from protruding beyond the surface of the substrate to increase the thickness of the substrate.

其中，基体200的侧面上设置的磨片300可以是粗磨片310，也可以是细磨片320，当然，也可以是粗磨片310和细磨片320都设置在基体的侧面上。The grinding plate 300 disposed on the side surface of the base body 200 may be a rough grinding piece 310 or a fine grinding piece 320. Of course, the rough grinding piece 310 and the fine grinding piece 320 may be disposed on the side surface of the base body.

本实施例优选的在基体200的同一侧面上设置有粗磨片310和细磨片320，则所述基体200的一面上设置所述的粗磨片和细磨片，与所述基体的一面相对的另一面上也设置有所述的粗磨片和细磨片。具体的，当所述粗磨片310和细磨片320都安装固定在所述基体200上时，所述粗磨片310凸出于所述基体200上的部分的高度低于所述细磨片320凸出于所述基体200上的部分的高度，所述粗磨片相比细磨片靠近所述链条切割方向。这样切割过程中，先通过粗磨片310对切割面进行第一次的打磨，继续切割细磨片320再对粗磨片进行打磨过后的切割面进行进一步的打磨。这样通过粗磨片和细磨片分别对切割面进行打磨，使得打磨效果更佳。当然，所述粗磨片310凸出于所述基体200上的部分的高度等于所述细磨片320凸出于所述基体200上的部分的高度也是可以的，只是效果不如上述优选的方案。In this embodiment, it is preferable to provide a rough grinding piece 310 and a fine grinding piece 320 on the same side surface of the base body 200, and the rough grinding piece and the fine grinding piece are disposed on one side of the base body 200, and one side of the base body The roughened sheet and the fine grinding sheet are also disposed on the opposite side. Specifically, when the rough grinding piece 310 and the fine grinding piece 320 are both mounted on the base body 200, the height of the portion of the rough grinding piece 310 protruding from the base body 200 is lower than the fine grinding. The sheet 320 protrudes from the height of the portion on the base 200 which is closer to the chain cutting direction than the fine grinding sheet. In this cutting process, the cutting surface is first sanded by the rough grinding sheet 310, the fine grinding sheet 320 is continuously cut, and the cutting surface after the rough grinding sheet is polished is further polished. In this way, the cutting surface is polished by the coarse grinding plate and the fine grinding piece, respectively, so that the grinding effect is better. Of course, it is also possible that the height of the portion of the roughening sheet 310 protruding from the base body 200 is equal to the height of the portion of the fine grinding sheet 320 protruding from the base body 200, but the effect is not as good as the above preferred solution. .

其中，所述粗磨片310凸出于所述基体200上的部分的高度低于所述细磨片320凸出于所述基体200上的部分的高度，是由于细磨片320凸出于基体侧面的第二打磨头324的厚度大于粗磨片320凸出于基体侧面的第一打磨头314的厚度。当然，本实施例也可以将第一打磨头和第二打磨头的厚度设置相同，然后将用于放置粗磨片的第一燕尾槽211设置的深度大于用于放置细磨片的第二燕尾槽212的深度。这样也能够实现细磨片凸出于基体表面的部分的高度大于粗磨片凸出于基体表面的部分的高度。然而，其他方式设置也是可以的。Wherein, the height of the portion of the roughening sheet 310 protruding from the base body 200 is lower than the height of the portion of the fine grinding sheet 320 protruding from the base body 200, because the fine grinding sheet 320 protrudes out The thickness of the second sanding head 324 on the side of the base body is greater than the thickness of the first sanding head 314 from which the roughing plate 320 protrudes from the side of the base body. Of course, in this embodiment, the thicknesses of the first sanding head and the second sanding head may be set to be the same, and then the first dovetail groove 211 for placing the rough grinding piece is set to have a depth greater than the second dovetail for placing the fine grinding piece. The depth of the slot 212. This also makes it possible to realize that the height of the portion of the fine abrasive sheet protruding from the surface of the substrate is greater than the height of the portion of the coarse abrasive sheet protruding from the surface of the substrate. However, other ways of setting are also possible.

基体200在燕尾槽210位置处设置有多个滑动孔240，对应的，磨片上设置有与之对应的定位孔，从而对磨片起到定位作用。具体的，粗磨片310和细 磨片320上分别设置有第一定位孔312和第二定位孔313，多个滑动孔分别与第一定位孔对应以及与第二定位孔对应，从而通过销钉分别穿过滑动孔和第一定位孔将粗磨片定位，以及销钉分别穿过滑动孔和第二定位孔将细磨片定位，从而使得粗磨片和细磨片固定效果更佳。The base body 200 is provided with a plurality of sliding holes 240 at the position of the dovetail groove 210. Correspondingly, the grinding plate is provided with a positioning hole corresponding thereto, thereby positioning the grinding plate. Specifically, the rough grinding sheet 310 and fine The first positioning hole 312 and the second positioning hole 313 are respectively disposed on the grinding plate 320. The plurality of sliding holes respectively correspond to the first positioning hole and correspond to the second positioning hole, so that the pin passes through the sliding hole and the first positioning respectively. The hole positions the coarse grinding piece, and the pin passes through the sliding hole and the second positioning hole respectively to position the fine grinding piece, so that the coarse grinding piece and the fine grinding piece are better fixed.

其中，对本实施例的进一步改进，将粗磨片和细磨片相邻设置。这样粗磨片310打磨过后随后由细磨片320进行打磨，打磨间隔短，效果更佳。当然，也可以将粗磨片和细磨片分离设置。Among them, for the further improvement of the embodiment, the rough grinding piece and the fine grinding piece are disposed adjacent to each other. Thus, the rough grinding piece 310 is polished and then polished by the fine grinding piece 320, and the grinding interval is short, and the effect is better. Of course, it is also possible to separate the rough grinding piece and the fine grinding piece.

其中，对本实施例的进一步改进，所述磨片300可拆卸的固定在所述基体200上，具体的，磨片可拆卸的***到燕尾槽内，燕尾槽方便磨片的***和取出。把磨片可拆卸的固定在基体上方便将磨片从基体上拆卸或安装固定，一旦磨片需要更换则可将磨片拆卸并换上适合的磨片。当然，本实施例也可以通过其他可拆卸的方式将磨片固定在基体上，或者直接将磨片安装固定在基体上也是可以的。In the further improvement of the embodiment, the grinding disc 300 is detachably fixed on the base body 200. Specifically, the grinding disc is detachably inserted into the dovetail groove, and the dovetail groove facilitates the insertion and removal of the grinding disc. The detachable fixing piece is fixed on the base body to facilitate the removal or mounting of the grinding piece from the base body. Once the grinding piece needs to be replaced, the grinding piece can be disassembled and replaced with a suitable grinding piece. Of course, in this embodiment, the grinding disc can also be fixed to the base body by other detachable means, or it is also possible to directly fix and fix the grinding disc to the base body.

在本实施例中，所述磨片300为弧形结构。这是磨片的一种具体结构，弧形结构的磨片打磨面积大，效果更好。当然，设置成其他结构也是可以的，比如长条形结构。In the embodiment, the grinding disc 300 has an arc structure. This is a specific structure of the grinding disc, and the grinding surface of the curved structure has a large grinding area and a better effect. Of course, it is also possible to set it to other structures, such as a long strip structure.

在本实施例中，所述磨片300靠近所述基体200边沿设置。这是设置磨片位置的一种具体方式，这样设置磨片打磨面积大，效果更好。当然，也可以将磨片安装固定在其他位置。In the present embodiment, the grinding disc 300 is disposed adjacent to the edge of the base 200. This is a specific way to set the position of the grinding disc, so that the grinding area of the grinding disc is set to be large and the effect is better. Of course, it is also possible to mount the plate in other positions.

在本实施例中，所述磨片300的两端位于所述基体200的中心线位置。这是设置磨片端部位置的一种具体方式，这样设置方便磨片打磨。当然，也可以有其他方式设置。In the present embodiment, both ends of the grinding plate 300 are located at the center line position of the base body 200. This is a specific way of setting the position of the end of the plate, so that the setting is convenient for grinding. Of course, there are other ways to set it up.

需要说明的，对于本领域的技术人员而言，在基体200的侧面上设置任意个数的磨片、或者任意结构的磨片及其组合都在本实施例的保护范围内。It should be noted that, for those skilled in the art, it is within the protection scope of the present embodiment to provide an arbitrary number of grinding discs on the side of the base body 200, or a grinding disc of any structure and combinations thereof.

另外，需要说明的是，对于本领域的技术人员而言，以上磨片的结构仅仅以示例的方式进行描述，其他任何结构的磨片也都在本实施例的保护范围内。In addition, it should be noted that, for those skilled in the art, the structure of the above-mentioned grinding disc is described by way of example only, and the grinding disc of any other structure is also within the protection scope of the embodiment.

作为本发明的优选方案：如图18至27，并参加图1至17，所述动力锯10还包括设置在所述基体20内的驱动机构400，所述驱动机构400与所述磨片300连接，用于驱动所述磨片300。这是通过磨片对切割面进行打磨的另一种方式，由此驱动机构驱动磨片使得磨片产生运动，这样磨片对切割面的打磨效 果更佳。As a preferred embodiment of the present invention: as shown in FIGS. 18 to 27, and in FIGS. 1 to 17, the power saw 10 further includes a driving mechanism 400 disposed in the base 20, the driving mechanism 400 and the grinding plate 300. Connected to drive the grinding disc 300. This is another way of grinding the cutting surface by the grinding disc, whereby the driving mechanism drives the grinding disc to cause the grinding disc to move, so that the grinding surface is effective on the cutting surface. Better.

其中，所述驱动机构400与所述磨片一端连接，所述磨片另一端连接有弹性件500；当所述驱动机构400驱动所述磨片300时所述磨片受力压缩所述弹性件500；当所述驱动机构的作用力从所述磨片上消失时所述弹性件伸展使所述磨片运动。这是驱动机构驱动磨片运动的一种具体方式，通过驱动机构的驱动以及弹性件的伸缩作用更加便于磨片进行运动，使得打磨效果更好。Wherein, the driving mechanism 400 is connected to one end of the grinding plate, and the other end of the grinding plate is connected with an elastic member 500; when the driving mechanism 400 drives the grinding plate 300, the grinding plate is forced to compress the elasticity. a member 500 that stretches to move the plate as the force of the drive mechanism disappears from the plate. This is a specific way for the driving mechanism to drive the movement of the grinding disc. The driving of the driving mechanism and the expansion and contraction of the elastic member further facilitate the movement of the grinding disc, so that the grinding effect is better.

其中，所述驱动机构400包括中心轴430、和固定在所述中心轴430上的拨杆410及凸轮420，所述拨杆410和凸轮420可在所述中心轴430上进行往复运动，所述拨杆和磨片固定连接。拨杆和磨片的一端固定连接，凸轮运动使得拨杆随之运动，进而由拨杆驱动打磨片进行运动，实现打磨的目的。The driving mechanism 400 includes a central shaft 430, and a lever 410 and a cam 420 fixed to the central shaft 430. The lever 410 and the cam 420 can reciprocate on the central shaft 430. The lever and the grinding plate are fixedly connected. The lever and the one end of the grinding piece are fixedly connected, and the movement of the cam causes the lever to move accordingly, and then the rotating piece is driven by the lever to perform the grinding.

其中，所述拨杆410和磨片300之间通过连接片460固定连接，连接片上分别设置有两个孔，对应的，拨杆上设置有与其对应的拨杆孔，并由销钉固定；以及磨片上设置有与其对应的固定孔，并由销钉固定，从而实现磨片和拨杆的固定连接。Wherein, the lever 410 and the grinding plate 300 are fixedly connected by a connecting piece 460, and two holes are respectively disposed on the connecting piece, and correspondingly, the corresponding lever hole is disposed on the lever and fixed by the pin; The grinding plate is provided with a corresponding fixing hole and fixed by a pin, thereby achieving a fixed connection between the grinding plate and the lever.

在拨杆410的根部设置有与拨杆410对应的平衡杆413，平衡杆413起到平衡拨杆410的作用；该平衡杆413和拨杆410之间形成夹角，该夹角大于零度，小于或等于九十度；优选的，夹角选择四十五度，这样使得平衡杆413的平衡作用更加。凸轮420设置在拨杆和平衡杆之间，即凸轮位于夹角的位置处，这样当拨杆与磨片固定连接后，驱动凸轮420朝一个方向转动，凸轮420转动带动拨杆410转动，拨杆410转动时压动磨片，使磨片朝向弹性件500方向运动，磨片运动时压缩弹性件，继续压缩，当弹性件收缩力度大时，凸轮的驱动力不再能够驱动拨杆压缩弹性件时，凸轮受到重力以及弹性件的反向作用力使得凸轮向相反方向运动，这时弹性件伸展，磨片运动；当凸轮到达一定高度后，弹性件的反向作用力逐渐消失，凸轮的惯性力也消失时，凸轮通过重力再次向第一次驱动的方向运动，这样就继续驱动拨杆压缩带动磨片和弹性件，从而通过凸轮、拨杆以及弹性件对磨片的驱动控制，使得磨片在基体表面做往复的运动，实现打磨。这是驱动机构的一种具体结构，当然，通过其他方式驱动磨片运动也是可行的。A balance bar 413 corresponding to the lever 410 is disposed at a base of the lever 410. The balance bar 413 functions as a balance lever 410. The balance bar 413 and the lever 410 form an angle, and the angle is greater than zero degrees. Less than or equal to ninety degrees; preferably, the angle is chosen to be forty-five degrees, which makes the balance bar 413 more balanced. The cam 420 is disposed between the lever and the balance bar, that is, the cam is located at an angle, so that when the lever is fixedly coupled with the plate, the driving cam 420 rotates in one direction, and the cam 420 rotates to drive the lever 410 to rotate. When the rod 410 rotates, the grinding piece is pressed to move the grinding piece toward the elastic member 500. When the grinding piece moves, the elastic member is compressed and continues to be compressed. When the elastic member shrinks, the driving force of the cam can no longer drive the compression elasticity of the operating rod. When the piece is subjected to gravity and the reverse force of the elastic member, the cam moves in the opposite direction, when the elastic member is extended and the grinding plate moves; when the cam reaches a certain height, the reverse force of the elastic member gradually disappears, the cam When the inertial force also disappears, the cam moves again in the direction of the first driving by gravity, so that the driving of the lever is continued to drive the grinding piece and the elastic member, so that the driving control of the grinding plate by the cam, the lever and the elastic member makes the grinding The sheet is reciprocatingly moved on the surface of the substrate to achieve sanding. This is a specific structure of the drive mechanism. Of course, it is also feasible to drive the movement of the grinding disc by other means.

例如：驱动凸轮420朝一个方向进行圆周转动，在此以正转为例，当然，反转也是可以的。凸轮420在圆周运动过程中带动拨杆410转动，拨杆410转 动时压动磨片，这样就继续驱动拨杆压缩或拉伸带动磨片和弹性件往复运动，通过控制凸轮的圆周运动控制磨片及弹性件压缩或拉伸，使得磨片在基体表面做往复的运动，完成打磨。For example, the driving cam 420 performs circumferential rotation in one direction, and here, for example, forward rotation is also possible. The cam 420 drives the lever 410 to rotate during the circular motion, and the lever 410 rotates. Pressing the grinding disc during the movement, so as to continue to drive the lever to compress or stretch to drive the refining movement of the grinding disc and the elastic member, and control the grinding piece and the elastic member to compress or stretch by controlling the circular motion of the cam, so that the grinding piece is made on the surface of the base body. Reciprocating movement, finish grinding.

另外，此方案是通过驱动凸轮420朝一个方向转动，凸轮420转动带动拨杆410转动，拨杆410转动时压动磨片，使磨片朝向弹性件500方向运动，磨片运动时压缩弹性件，通过先压缩弹性件再拉伸弹性件来驱动磨片运动的。当然，也可以是先拉伸弹性件再压缩弹性件来驱动磨片。具体是：驱动凸轮420朝向另一个方向转动，凸轮420转动带动拨杆410转动，拨杆410转动时拉动磨片，使磨片朝向远离弹性件的方向运动，磨片运动时拉伸弹性件；当凸轮反向转动时，通过拨杆使磨片朝向弹性件的方向运动，磨片运动时压缩弹性件，从而通过弹性件的先拉伸再压缩来实现磨片的往复运动。In addition, the solution is rotated in one direction by the driving cam 420, and the rotation of the cam 420 drives the rotating rod 410 to rotate. When the rotating rod 410 rotates, the grinding piece is pressed to move the grinding piece toward the elastic member 500, and the elastic piece is compressed when the grinding piece moves. The movement of the grinding disc is driven by first compressing the elastic member and then stretching the elastic member. Of course, it is also possible to first stretch the elastic member and then compress the elastic member to drive the grinding disc. Specifically, the driving cam 420 rotates in the other direction, the cam 420 rotates to drive the rotating rod 410 to rotate, and when the lever 410 rotates, the grinding piece is pulled to move the grinding piece away from the elastic member, and the elastic piece is stretched when the grinding piece moves; When the cam rotates in the reverse direction, the grinding plate is moved toward the elastic member by the lever, and the elastic member is compressed during the movement of the grinding plate, thereby reciprocating the grinding plate by first stretching and then compressing the elastic member.

其中，磨片有粗磨片和细磨片，对应的，拨杆410包括有第一拨杆411和第二拨杆412，第一拨杆和粗磨片固定连接，第二拨杆和细磨片固定连接，第一拨杆和第二拨杆上都设置凸轮和平衡杆。平衡杆起到平衡作用，以便凸轮驱动第一拨杆和第二拨杆的效果更佳。由于，基体的两面上都设置有磨片，从而中心轴430的两端分别设置有第一拨杆和第二拨杆，这样使得中心轴两端平衡，进而使得动力锯整体平衡效果更佳，切割时效果更好。The grinding piece has a coarse grinding piece and a fine grinding piece. Correspondingly, the lever 410 includes a first lever 411 and a second lever 412. The first lever and the coarse grinding plate are fixedly connected, and the second lever and the thin rod are The grinding plate is fixedly connected, and the first lever and the second lever are provided with a cam and a balance bar. The balance bar acts as a balance so that the cam drives the first and second levers better. Since the grinding plate is disposed on both sides of the base body, the first shaft and the second lever are respectively disposed at two ends of the central shaft 430, so that the two ends of the center shaft are balanced, thereby further improving the overall balance of the power saw. It works better when cutting.

其中，驱动机构400还包括固定杆440，固定杆440设置在平衡杆和拨杆的根部位置处，固定杆440与基体200固定连接，从而使得驱动机构400稳定、牢固的固定在基体上，以便驱动机构正常的驱动磨片。基体上设置有固定孔，固定杆440***到固定孔内相互配合，从而将驱动机构400限位固定。且基体200上还设置有中心轴孔，用于放置中心轴430，中心轴***到中心轴孔内相互配合，使得驱动机构400和基体200之间的固定连接效果更好。The driving mechanism 400 further includes a fixing rod 440 disposed at a root position of the balance rod and the lever, and the fixing rod 440 is fixedly coupled to the base body 200, so that the driving mechanism 400 is stably and firmly fixed on the base body, so that The drive mechanism drives the grinding disc normally. The base body is provided with fixing holes, and the fixing rods 440 are inserted into the fixing holes to cooperate with each other, thereby fixing the driving mechanism 400 to be fixed. The base body 200 is further provided with a central shaft hole for arranging the central shaft 430. The central shaft is inserted into the central shaft hole to cooperate with each other, so that the fixed connection between the driving mechanism 400 and the base body 200 is better.

其中，驱动机构400还包括安装在中心轴430上的传动齿轮450，中心轴430两端分别设置有传动齿轮450。The driving mechanism 400 further includes a transmission gear 450 mounted on the central shaft 430, and the transmission shaft 450 is respectively disposed at two ends of the central shaft 430.

由于基体200在燕尾槽210位置处设置有多个滑动孔240，磨片上设置有与之对应的定位孔，从而对磨片起到定位作用。具体的，粗磨片310和细磨片320上分别设置有第一定位孔312和第二定位孔313，多个滑动孔分别与第一定位孔对应以及与第二定位孔对应，从而通过销钉分别穿过滑动孔和第一定位孔将粗磨片定位，以及销钉分别穿过滑动孔和第二定位孔将细磨片定位，从而 使得粗磨片和细磨片固定效果更佳。进而使得磨片在运动过程中运动方向更加稳定，放置磨片向其他方向运动。Since the base body 200 is provided with a plurality of sliding holes 240 at the position of the dovetail groove 210, the grinding plate is provided with a positioning hole corresponding thereto, thereby positioning the grinding plate. Specifically, the roughening plate 310 and the fine grinding plate 320 are respectively disposed with a first positioning hole 312 and a second positioning hole 313, and the plurality of sliding holes respectively correspond to the first positioning hole and correspond to the second positioning hole, thereby passing the pin Positioning the coarse grinding plate through the sliding hole and the first positioning hole respectively, and positioning the fine grinding piece through the sliding hole and the second positioning hole respectively, thereby The coarse grinding plate and the fine grinding plate are better fixed. In turn, the moving direction of the grinding piece is more stable during the movement, and the grinding piece is placed to move in other directions.

其中，基体200在燕尾槽210的两端分别设置有用于放置拨杆410的拨杆槽220和用于放置弹性件500的弹簧槽230。从而使得拨杆410和弹性件都位于基体表面内，防止其凸出于基体表面。The base body 200 is respectively provided at two ends of the dovetail groove 210 with a lever groove 220 for placing the lever 410 and a spring groove 230 for placing the elastic member 500. Thereby, the lever 410 and the elastic member are both located in the surface of the base body to prevent it from protruding from the surface of the base.

其中，粗磨片310的一端设置有第一孔311，该第一孔311和一个连接片上的一个孔对应，并由销钉固定，实现粗磨片和一个连接片的固定连接。粗磨片310的另一端设置有第二孔313，该第二孔313与弹性件500固定连接，防止弹性件和粗磨片脱离。其中，粗磨片中部设置三个第一定位孔312，并且均匀布置，从而通过销钉与基体上的滑动孔240配合后使得粗磨片的定位效果更好。One end of the rough grinding piece 310 is provided with a first hole 311 corresponding to one hole on one connecting piece and fixed by a pin to realize a fixed connection of the rough grinding piece and one connecting piece. The other end of the roughening plate 310 is provided with a second hole 313 which is fixedly coupled to the elastic member 500 to prevent the elastic member and the coarse grinding plate from coming off. Wherein, three first positioning holes 312 are disposed in the middle of the rough grinding piece, and are evenly arranged, so that the positioning effect of the rough grinding piece is better by the pin and the sliding hole 240 on the base body.

其中，细磨片320的一端设置有第三孔321，该第三孔321和一个连接片上的一个孔对应，并由销钉固定，实现细磨片320和一个连接片的固定连接。细磨片320的另一端设置有第四孔323，该第四孔323与弹性件500固定连接，防止弹性件和细磨片320脱离。其中，细磨片320中部设置三个第二定位孔322，并且均匀布置，从而通过销钉与基体上的滑动孔240配合后使得细磨片320的定位效果更好。Wherein, one end of the fine grinding piece 320 is provided with a third hole 321 corresponding to one hole on one connecting piece and fixed by a pin to realize a fixed connection of the fine grinding piece 320 and one connecting piece. The other end of the fine grinding piece 320 is provided with a fourth hole 323 which is fixedly coupled to the elastic member 500 to prevent the elastic member and the fine grinding piece 320 from being detached. Wherein, three second positioning holes 322 are disposed in the middle of the fine grinding piece 320, and are evenly arranged, so that the positioning effect of the fine grinding piece 320 is better by the pin and the sliding hole 240 on the base body.

在本实施例中，所述弹性件500为弹簧。弹簧的弹性好，便于伸缩。当然，也可以为其他弹性件，比如泡棉等。In this embodiment, the elastic member 500 is a spring. The spring has good elasticity and is easy to expand and contract. Of course, it can also be other elastic parts, such as foam.

作为本实施例的进一步改进，所述动力锯10还包括设置在所述基体200上的消音装置。动力锯10在切割过程中产生较大噪音，对周围环境造成很大的影响，通过此消音装置可减小噪音、甚至消除噪音，从而防止在使用动力锯10影响到周围环境。参见图7、图16、图21、图24及图26，基体200上设置有多个消音孔600，消音孔用于消音，简单、方便，消音效果直接、有效。本实施例消音孔600是消音装置的一种具体方式，当然，也可以有其他方式，比如，直接在基体200上安装固定消音器，通过该消音器实现消音的目的，减小噪音也是可以的。然而，本实施例直接在基体200上设置的消音孔结构简单、容易实现，相比在基体上安装固定消音器实现消音的目的，大大节省了材料，减少成本。As a further improvement of the embodiment, the power saw 10 further includes a muffling device disposed on the base 200. The power saw 10 generates a large noise during the cutting process and has a great influence on the surrounding environment. The noise reduction device can reduce noise and even eliminate noise, thereby preventing the use of the power saw 10 to affect the surrounding environment. Referring to FIG. 7, FIG. 16, FIG. 21, FIG. 24 and FIG. 26, a plurality of silencing holes 600 are disposed on the base body 200, and the silencing holes are used for silencing, which is simple and convenient, and the silencing effect is direct and effective. The muffling hole 600 of this embodiment is a specific mode of the muffling device. Of course, there may be other ways, for example, a fixed muffler is directly mounted on the base 200, and the muffler is used to achieve the purpose of muffling, and noise reduction is also possible. . However, the structure of the sound absorbing hole disposed directly on the base body 200 in this embodiment is simple and easy to implement, and the purpose of the sound absorbing is achieved by installing a fixed silencer on the base body, thereby greatly saving materials and reducing costs.

其中，所述消音孔600为多个，按照预设规则进行排列。多个消音孔消音 效果更好。本实施例消音孔的排列方式是按照不规则的方式进行排列的，这样随机对消音孔进行排列，消音效果好，防止产生共鸣。当然，也可以有规律的对多个消音孔进行排列，比如，在基体表面上设置相同间隔的消音孔。需要说明的是，对于本领域技术人员而言，消音孔的其他任何排列方式都在本实施例的保护范围内。The plurality of silencing holes 600 are arranged according to a preset rule. Multiple silencer holes better result. In this embodiment, the arrangement of the silencing holes is arranged in an irregular manner, so that the silencing holes are randomly arranged, the silencing effect is good, and resonance is prevented. Of course, it is also possible to regularly arrange a plurality of silencing holes, for example, to provide the same interval of silencing holes on the surface of the substrate. It should be noted that any other arrangement of the sound absorbing holes is within the protection scope of the embodiment for those skilled in the art.

其中，所述多个消音孔600的大小不同。多个消音孔600大小设置不同，使得消音效果更好，不会产生共鸣。当然，该多个消音孔设置成大小相同的，也是可以的。The plurality of silencing holes 600 are different in size. The plurality of muffler holes 600 have different size settings, so that the muffling effect is better and no resonance is generated. Of course, it is also possible that the plurality of silencing holes are set to be the same size.

其中，消音孔600为圆形孔。当然，也可以设置成方形孔，或者其他结构的孔。需要说明的是，对于本领域技术人员来说，消音孔的大小、结构、位置或任何组合方式都在本实施例的保护范围内。The sound absorbing hole 600 is a circular hole. Of course, it can also be set as a square hole, or a hole of other structure. It should be noted that, for those skilled in the art, the size, structure, position or any combination of the sound absorbing holes are within the protection scope of the embodiment.

作为本实施例的又一改进：所述基体200上设置有散热孔700，参见图7、图16、图21、图24及图26，散热孔用于散热，对基体200起到保护作用。As a further improvement of the embodiment, the base body 200 is provided with a heat dissipation hole 700. Referring to FIG. 7, FIG. 16, FIG. 21, FIG. 24 and FIG. 26, the heat dissipation hole is used for heat dissipation to protect the base body 200.

其中，散热孔700可以设置一个，也可以设置多个，本实施例优选设置两个，都为条形结构，当然，也可以设置成其他结构，该两个散热孔分开设置。The heat dissipation holes 700 may be provided in one or more than one. In this embodiment, two are preferably disposed, and both of them have a strip structure. Of course, other structures may be provided, and the two heat dissipation holes are separately provided.

本发明以上各实施例中的基体的形状可以为扇形、半圆形、圆形或星月形。但是，本发明的机体的形状并不限于以上几种。The shape of the substrate in the above embodiments of the present invention may be a fan shape, a semicircular shape, a circular shape or a star shape. However, the shape of the body of the present invention is not limited to the above.

需要说明的是，对于本领域技术人员而言，散热孔700的个数、大小、排列方式以及结构等的任意设置或任意组合都在本实施例的保护范围内。It should be noted that any arrangement or any combination of the number, size, arrangement, structure, and the like of the heat dissipation holes 700 is within the protection scope of the present embodiment.

以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。 The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Claims (10)

1. 一种动力锯，包括基体和环绕在所述基体边沿上的链条，所述链条上设置有用于切割的切割刀，其特征在于，所述链条至少为两条，并排排列在所述基体边沿上。A power saw includes a base body and a chain surrounding the edge of the base body, the chain being provided with a cutting blade for cutting, wherein the chain is at least two, arranged side by side on the edge of the base body .
2. 如权利要求1所述的一种动力锯，其特征在于，当所述链条为两条时，所述的两条链条的运动方向相反。A power saw according to claim 1, wherein when said chain is two, said two chains move in opposite directions.
3. 如权利要求1所述的一种动力锯，其特征在于，所述动力锯还包括设置在所述基体上的磨片，用于打磨所述切割刀切割的切割面。A power saw according to claim 1, wherein said power saw further comprises a grinding blade disposed on said base for sanding said cutting surface of said cutting blade.
4. 如权利要求3所述的一种动力锯，其特征在于，所述磨片可拆卸的固定安装在所述基体上。A power saw according to claim 3, wherein said plate is detachably fixedly mounted to said base.
5. 如权利要求3所述的一种动力锯，其特征在于，所述基体设置有用于放置所述磨片的燕尾槽。A power saw according to claim 3, wherein said base body is provided with a dovetail groove for placing said grinding disc.
6. 如权利要求3所述的一种动力锯，其特征在于，所述基体的两侧分别设置有所述的磨片。A power saw according to claim 3, wherein said two sides of said base body are respectively provided with said grinding discs.
7. 如权利要求3所述的一种动力锯，其特征在于，所述磨片包括粗磨片和细磨片。A power saw according to claim 3, wherein said grinding blade comprises a roughening plate and a fine grinding plate.
8. 如权利要求7所述的一种动力锯，其特征在于，所述粗磨片和细磨片设置在所述基体的同一面。A power saw according to claim 7, wherein said coarse grinding disc and said fine grinding disc are disposed on the same side of said base body.
9. 如权利要求8所述的一种动力锯，其特征在于，所述基体的一面上设置所述的粗磨片和细磨片，与所述基体的一面相对的另一面上也设置有所述的粗磨片和细磨片。A power saw according to claim 8, wherein said roughing plate and said fine grinding plate are disposed on one side of said base body, and said other surface opposite said one side of said base body is also provided Rough grinding and fine grinding.
10. 如权利要求9所述的一种动力锯，其特征在于，当所述粗磨片和细磨片都安装固定在所述基体上时，所述粗磨片凸出于所述基体上的部分的高度低于或等于所述细磨片凸出于所述基体上的部分的高度，所述粗磨片相比细磨片靠近所述链条切割方向；A power saw according to claim 9, wherein when the roughing plate and the fine grinding plate are both mounted on the base body, the rough grinding piece protrudes from the portion on the base body a height lower than or equal to a height of a portion of the fine grinding sheet protruding from the base, the coarse grinding sheet being closer to the chain cutting direction than the fine grinding sheet;

    优选的，所述磨片为弧形结构；Preferably, the grinding disc is an arc structure;

    优选的，所述磨片靠近所述基体边沿设置；Preferably, the grinding disc is disposed adjacent to the edge of the base body;

    优选的，所述磨片的两端位于所述基体的中心线位置；Preferably, both ends of the grinding disc are located at a center line position of the base body;

    优选的，当所述磨片固定在所述燕尾槽内时所述磨片上的用于打磨的部位凸出于所述基体表面； Preferably, the portion for sanding on the grinding plate protrudes from the surface of the substrate when the grinding plate is fixed in the dovetail groove;

    优选的，所述动力锯还包括设置在所述基体上的消音装置；Preferably, the power saw further includes a sound attenuating device disposed on the base body;

    优选的，所述消音装置包括设置在所述基体上消音孔；Preferably, the muffling device comprises a silencing hole disposed on the base body;

    优选的，所述消音孔为多个，按照预设规则进行排列；Preferably, the plurality of silencing holes are arranged according to a preset rule;

    优选的，所述消音孔为多个，所述多个消音孔的大小不同；Preferably, the plurality of silencing holes are plural, and the plurality of silencing holes are different in size;

    优选的，所述消音装置为设置在所述基体上的消音器；Preferably, the muffling device is a muffler disposed on the base body;

    优选的，所述动力锯还包括设置在所述基体内的驱动机构，所述驱动机构与所述磨片连接，用于驱动所述磨片；Preferably, the power saw further includes a driving mechanism disposed in the base body, and the driving mechanism is coupled to the grinding plate for driving the grinding plate;

    优选的，所述驱动机构与所述磨片一端连接，所述磨片另一端连接有弹性件；当所述驱动机构驱动所述磨片时所述磨片受力移动所述弹性件；当所述驱动机构的作用力从所述磨片上消失时所述弹性件移动所述磨片；Preferably, the driving mechanism is connected to one end of the grinding disc, and the other end of the grinding disc is connected with an elastic member; when the driving mechanism drives the grinding disc, the grinding disc is forced to move the elastic member; The elastic member moves the grinding plate when the force of the driving mechanism disappears from the grinding plate;

    优选的，所述驱动机构包括中心轴、和固定在所述中心轴上的拨杆及凸轮，所述拨杆和凸轮可在所述中心轴上进行往复或圆周运动，所述拨杆和磨片固定连接；Preferably, the driving mechanism comprises a central shaft, and a lever and a cam fixed on the central shaft, and the lever and the cam can perform reciprocating or circular motion on the central shaft, the lever and the grinding Fixed connection

    优选的，所述磨片上设置有用于销钉穿过的定位孔，所述基体上设置有用于所述销钉穿过的滑动孔，所述销钉可在所述滑动孔内运动；Preferably, the grinding plate is provided with a positioning hole for the pin to pass through, and the base body is provided with a sliding hole for the pin to pass through, and the pin can move in the sliding hole;

    优选的，所述弹性件为弹簧；Preferably, the elastic member is a spring;

    优选的，所述凸轮位于所述拨杆根部；Preferably, the cam is located at the root of the lever;

    优选的，所述驱动机构还包括设置在所述拨杆根部的平衡杆，所述平衡杆和拨杆之间形成夹角，所述夹角的范围是大于零度，小于或等于九十度；Preferably, the driving mechanism further includes a balance bar disposed at a root of the lever, and an angle formed between the balance bar and the lever, the angle of the angle being greater than zero degrees and less than or equal to ninety degrees;

    优选的，所述凸轮位于所述拨杆和平衡杆之间；Preferably, the cam is located between the lever and the balance bar;

    优选的，所述驱动机构还包括设置在所述中心轴上的传动齿轮，所述传动齿轮通过链轮传动连接；Preferably, the driving mechanism further includes a transmission gear disposed on the central shaft, and the transmission gear is connected by a sprocket transmission;

    优选的，所述驱动机构还包括设置在所述拨杆根部的固定杆，所述固定杆和基体固定连接；Preferably, the driving mechanism further includes a fixing rod disposed at a root of the lever, the fixing rod and the base body being fixedly connected;

    优选的，所述基体上设置有散热孔。 Preferably, the base body is provided with a heat dissipation hole.

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