CN103737691A

CN103737691A - Wood chipper

Info

Publication number: CN103737691A
Application number: CN201310730727.0A
Authority: CN
Inventors: 卢冬林
Original assignee: NANBEI MOTIVE POWER Co Ltd
Current assignee: NANBEI MOTIVE POWER Co Ltd
Priority date: 2013-12-25
Filing date: 2013-12-25
Publication date: 2014-04-23

Abstract

The invention belongs to the technical field of woodworking mechanical equipment and provides a wood chipper for solving the problem that existing wood chipper cannot guarantee smooth cutting of wood. The wood chipper comprises a wood chipper body and a support seat supporting the wood chipper body. The wood chipper comprises a motor, a cutter disc shaft connecting the motor with a cutter disc, a cutter disc cover covering the cutter and a cutter disc shaft seat fixed onto the support seat, wherein the cutter disc cover is fixed onto the cutter disc shaft seat, one surface of the cutter disc is radially provided with a wood cutter, the included angle between the wood cutter and the surface of the cutter disc is 30-40 degree, and the edge angle of the wood cutter is 25-34 degree. By means of the above technical scheme, the wood chipper can effectively solve the technical problem above.

Description

A kind of wood chip machine

Technical field

The invention belongs to timber mechanical equipment technical field, relate to a kind of wood chip machine.

Background technology

Wood chip machine has another name called wood sheet cutter, it is the special equipment of production high-quality wood chip, all kinds of logs, the mao bamboons such as pine, weedtree, poplar, China fir can be cut into uniform sheet stock, also can carry out slice processing to various materials such as slab, veneer, bamboo wood brush wood, cornstalk, cotton stalk, reed and other non-wood bars, be the ideal equipment in the industrial material papering sections such as paper mill, wood-based plate, MDF and all kinds of Chip Production base.

Yet existing wood chip machine, when timber is cut, need to provide larger cutting force, to complete the section to timber, and the timber obtaining section is sometimes cracked, does not reach corresponding requirement.

Summary of the invention

Technical problem to be solved by this invention is that existing wood chip machine can not guarantee smoothly timber to be cut, and provides a kind of wood chip machine for this problem.

Wood chip machine of the present invention, comprise wood chip machine body and the supporting seat that supports wood chip machine body, described wood chip machine body comprises motor, connects the cutter axis of motor and cutterhead, cutterhead is covered on to inner cutterhead cover and is fixed on the cutterhead axle bed on supporting seat, described cutterhead cover is fixed on cutterhead axle bed, it is characterized in that described cutterhead is simultaneously radially provided with and cuts wooden cutter, the angle of cutting wooden cutter and cutterhead face is 30 °-40 °, and the basil of cutting wooden cutter is 25 °-34 °.

As described in the background section, existing wood chip machine is when cutting timber, often need the cutting force that provides larger, the present invention finds through research, have at least two aspects to cut the size that affects cutting force under wooden prerequisite timber is well on, there is certain relation in the included angle X and the cutting force N that cut on the one hand wooden cutter and cutterhead face, the wood chip machine of the present invention of take is example, if need cutting to obtain the poplar sheet of 80mm * 80mm * 10mm, constant and only change under the condition of the included angle X cut wooden cutter and cutterhead face at other wood chip machine parameters, λ and cutting force N can present relation as described in Figure 1, on the other hand, constant and only change relief angle K(λ and cut the poor of wooden tool point angle at other wood chip machine parameters) condition under, relief angle K with cut wooden cutter cutter and cut force density N/mm and present relation as described in Figure 2.It is raw material that other different timber are also take in the present invention, and cut into the wood chip of different size, λ and cutting force N and relief angle K and cutter are cut force density N/mm all close relation, thereby, it is considered herein that and the angle of cutting wooden cutter and cutterhead face should be set in to 30 °-40 °, and the basil of cutting wooden cutter should be set in 25 °-34 °, thereby can greatly reduce the resistance that cuts timber, extend the life-span of cutting wooden cutter, and improve quality and the efficiency cutting.

Optimum, described in cut wooden cutter and cutterhead face angle be 38 °, the basil of cutting wooden cutter is 30 °.Now, conventionally can guarantee wood chip machine in the situation that minimum cutting force is provided, complete the cutting to timber.

Be different from the effect of wooden cutter to cutting of cutting, described cutterhead cover inwall is when timber cuts, cutterhead cover must be held timber, cut so wooden cutter and could cut timber, cutterhead cover inwall and the distance of cutting between wooden edge at least can affect the normal rotation of cutterhead, cutterhead cover inwall and the distance of cutting between wooden edge are too small, can make cutterhead produce mechanical resonance, have a strong impact on the service life of cutting precision and the cutterhead of cutting wooden cutter, and cutterhead cover inwall and cut distance between wooden edge when excessive, timber within this distance just likely falls in cutterhead, and block cutterhead, wood chip machine is broken down, to sum up consider, and through a large amount of cutting practices, the distance that the present invention cuts wooden edge and cutterhead cover inwall is 15mm-20mm.

As a kind of preferred, the distance of cutting wooden edge and cutterhead cover inwall is 17.5mm.

The invention provides a kind of technical scheme of automatically wood chip having cut being discharged automatically, conventionally, the wood chip of being cut after wooden cutter cutting can be deposited in the space between cutterhead and cutterhead cover, wood chip machine is after a period of time that runs well, technical staff has to close wood chip machine, and the wood chip in the space being deposited between cutterhead and cutterhead cover is taken out, and then operation wood chip machine, so just reduced the operating efficiency of wood chip machine, increase manually-operated workload, scheme provided by the present invention is, at cutterhead edge, bat wooden unit is set, for the wood chip being deposited between cutterhead and cutterhead cover is patted away timely, therefore can realize the continuous operation of wood chip machine, described bat wooden unit comprises claps wooden unit body and to the projection piece of cutterhead cover inwall direction projection, in the work of concrete beating wood chip, clapping wooden unit body and projection piece works jointly, stopped the dead angle, space between cutterhead and cutterhead cover, avoid patting clean and make within part wood chip is trapped in the space between cutterhead and cutterhead cover.

Accompanying drawing explanation

Fig. 1 cuts the included angle X of wooden cutter and cutterhead face and the graph of a relation between cutting force N described in summary of the invention part;

Fig. 2 is the described relief angle K of summary of the invention part and cuts wooden cutter cutter and cut the graph of a relation between force density N/mm;

Fig. 3 is the structural representation (not showing charging aperture conveyer belt) of a kind of wood chip machine described in embodiment;

Fig. 4 is the plan structure schematic diagram (not shown material mouth and discharging conveyer belt) of a kind of wood chip machine described in embodiment;

Fig. 5 is the fragmentary top TV structure schematic diagram of a kind of wood chip machine described in embodiment.

The specific embodiment

Embodiment

See Fig. 3 to Fig. 5, a kind of wood chip machine, comprise wood chip machine body and the shaped as frame supporting seat 5 that supports wood chip machine body, wood chip machine body comprises the motor 11 being fixed on shaped as frame supporting seat 5, the cutter axis 8 that connects motor 11 and cutterhead 2, cutterhead 2 is covered on to inner cutterhead cover 15 and is fixed on the cutterhead axle bed 9 on shaped as frame supporting seat 5, cutterhead cover 15 is fixed on cutterhead axle bed 9, cutterhead cover 15 has charging aperture 4 being provided with the one side of cutting wooden cutter facing to cutterhead 2, facing to cutterhead 2 edges, having discharging opening 1, and below discharging opening 1 and charging aperture 1, place respectively conveyer belt (being respectively 7 and 10), facilitate transporting of timber.

Described cutterhead 2 one sides are radially provided with cuts wooden cutter 6, cutterhead 2 edges are provided with claps wooden unit 3, clapping wooden unit 3 comprises and claps wooden unit body 17 and to the projection piece 16 of cutterhead cover 15 inwall direction projections, cutting wooden cutter 6 is 38 ° with the included angle X of 2 of cutterheads, the basil of cutting wooden cutter 6 is that 30 ° (now relief angle K(is λ and cuts the poor of wooden cutter 6 basils) are 8 °), the distance H of cutting wooden cutter 6 cutting edges and cutterhead cover 15 inwalls is 17.5mm.

During use, timber is sent into charging aperture 4 from conveyer belt 10, and discloses in cutterhead cover 15 with fork truck, through cutting wooden cutter 6, cuts into after wood chip, and the bat wooden unit 3 that is finally arranged on cutterhead 2 edges is taken along discharging opening 1, directly falls into the conveyer belt 7 of discharging opening 1 below.

Claims

1. a wood chip machine, comprise wood chip machine body and the supporting seat that supports wood chip machine body, described wood chip machine body comprises motor, connects the cutter axis of motor and cutterhead, cutterhead is covered on to inner cutterhead cover and is fixed on the cutterhead axle bed on supporting seat, described cutterhead cover is fixed on cutterhead axle bed, it is characterized in that described cutterhead is simultaneously radially provided with and cuts wooden cutter, the angle of cutting wooden cutter and cutterhead face is 30 °-40 °, and the basil of cutting wooden cutter is 25 °-34 °.

2. a kind of wood chip machine according to claim 1, the angle of cutting wooden cutter and cutterhead face described in it is characterized in that is 38 °, the basil of cutting wooden cutter is 30 °.

3. a kind of wood chip machine according to claim 1, the distance that it is characterized in that cutting wooden edge and cutterhead cover inwall is 15mm-20mm.

4. a kind of wood chip machine according to claim 3, is characterized in that the distance of blade cutting edge and cutterhead cover inwall is 17.5mm.

5. a kind of wood chip machine according to claim 1, is characterized in that cutterhead edge is provided with bat wooden unit, and described bat wooden unit comprises claps wooden unit body and to the projection piece of cutterhead cover inwall direction projection.

6. a kind of wood chip machine according to claim 1, is characterized in that described cutterhead covers on facing to cutterhead, to be provided with the one side of cutting wooden cutter and to have charging aperture, facing to cutterhead edge, is having discharging opening.

7. a kind of wood chip machine according to claim 1, is characterized in that described wood chip machine also comprises the conveyer belt that is placed on respectively discharging opening and charging aperture below.