阅读说明：本技术 适用于切削厚块、薄片或条形木质物的组合型鼓式削片机 (Combined drum chipper suitable for cutting thick block, thin sheet or strip-shaped wooden matter ) 是由 张祥 陈明秋 叶家旺 詹建辉 曲成花 于 2019-11-23 设计创作，主要内容包括：本发明涉及适用于切削厚块、薄片或条形木质物的组合型鼓式削片机,应用于将厚块、薄片、条形木质物切削成片粒。它由机体及喂料口上锷组成；所述机体包括机架及安装在机架上的刀鼓和底刀、喂料口下锷；喂料口上锷与机架铰接；其特征是喂料口上锷为组件并具有下述特点：与减速机构组合在一起的电机通过安装底座及垫板直接安装在上锷上盖板上表面后部；与机体相组合用的喂料口上锷为横向齿喂料口上锷、纵向齿喂料口上锷、锥形齿喂料口上锷三者之一或之二或之三。具有机械集成化高,喂料口上锷可作为小体积装置单独生产,在社会生产中可以根据具体类型木质物原料的数量和切削所需要的时间,相互间借用所需类型的喂料口上锷等优点。(The invention relates to a combined drum chipper suitable for cutting thick blocks, thin slices or strip-shaped wooden objects, which is applied to cutting the thick blocks, the thin slices or the strip-shaped wooden objects into chips. It consists of a body and a feeding mouth upper jaw; the machine body comprises a frame, a cutter drum, a bottom cutter and a lower jaw of a feed inlet, wherein the cutter drum, the bottom cutter and the lower jaw of the feed inlet are arranged on the frame; the upper jaw of the feeding port is hinged with the frame; it is characterized in that the feeding mouth upper jaw is a component and has the following characteristics: the motor combined with the speed reducing mechanism is directly arranged at the rear part of the upper surface of the upper jaw upper cover plate through the mounting base and the backing plate; the feeding mouth upper jaw combined with the machine body is one or two or three of a transverse tooth feeding mouth upper jaw, a longitudinal tooth feeding mouth upper jaw and a conical tooth feeding mouth upper jaw. The feeding mouth feeding device has the advantages that the mechanical integration is high, the feeding mouth feeding device can be independently produced as a small-volume device, and the feeding mouth feeding device can be used for feeding the jaw according to the quantity of specific types of wooden raw materials and the time required by cutting in social production.)

1. A combined drum chipper suitable for cutting thick blocks, thin slices or strip-shaped woody substances comprises a body (53) and a feeding mouth upper jaw (55); the machine body (53) comprises a frame, a cutter drum (39), a bed knife and a lower jaw (29) of a feeding port, wherein the cutter drum and the bed knife are arranged on the frame;

the upper jaw of the feeding port is hinged with the frame;

the feeding mouth upper jaw comprises an upper jaw left side plate (21), an upper jaw right side plate (5), an upper jaw front cover plate (17), an upper jaw rear cover plate (7), an upper jaw upper cover plate (15) and an upper jaw tooth roller set (6); the two ends of the roll shaft of each tooth roller in the upper jaw tooth roller group are respectively arranged on the upper jaw left side plate and the upper jaw right side plate through a bearing seat and a bearing; chain wheels are arranged between the tooth rollers through the tail ends of the roll shafts to realize homodromous chain transmission; the upper jaw left side plate, the upper jaw right side plate, the upper jaw front cover plate, the upper jaw rear cover plate and the adjacent edges of the upper jaw upper cover plate are welded into a whole;

the cutter drum consists of a drum body (63) with a rotating shaft (61) and a cutter (65); the cutter is fixed on a drum body cutter holder (69) through a screw or a bolt by a cutter pressing block (67); two ends of the rotating shaft are arranged on the frame through a bearing and a bearing seat;

it is characterized in that the upper jaw of the feeding mouth is a component and has the following characteristics from i to iv:

(i) a motor (13) combined with a speed reducing mechanism is directly arranged at the rear part of the upper surface of the upper jaw upper cover plate (15) through an installation base (11) and a backing plate (9);

(ii) a support plate extends from the lower part of the rear end of the upper jaw left side plate to the rear lower part, the support plate is drilled, and a bearing I (1) is assembled in the hole in an interference fit manner;

(iii) a support plate extends from the lower part of the rear end of the right upper jaw plate to the rear lower part, the support plate is drilled, and a bearing II (3) is assembled in the hole in an interference fit manner;

(iv) the bearing I (1) and the bearing II (3) are respectively connected with the machine body in a combined manner through two pin shafts and a pin hole I (37) and a pin hole II (31) on the chipping machine frame;

the feeding mouth upper jaw (55) combined with the machine body is one or two or three of a transverse tooth feeding mouth upper jaw, a longitudinal tooth feeding mouth upper jaw and a conical tooth feeding mouth upper jaw.

2. A modular drum chipper suitable for cutting slabs, sheets or strips of wood according to claim 1, wherein the cross-sectional outline of the cutter drum mounting cutter sector lies within the curve described by the following polar coordinate system equation:

ρ＝(1-Cφ)R

wherein rho is the pole diameter and the unit is m; phi is polar angle and unit is rad; the pole is the center of the rotating shaft, and the connecting line of the edge line of the cutter and the pole is a pole shaft; phi belongs to [0, pi/4 ];

c is V/omega R, V is the conveying speed of the raw material, and the unit is m/s; omega is the rotation angular velocity of the cutter, and the unit is rad/s;

r is the distance from the cutting edge of the cutter to the central line of the rotating shaft, and the unit is m.

3. A combined drum chipper suitable for cutting thick slabs, thin slabs or wooden strips according to claim 1 or 2, characterized in that the lower edge of the upper jaw front cover plate (17) is provided with a tooth gap (18).

4. A combined drum chipper suitable for cutting slabs, sheets or strips of wood according to claim 3, characterized in that the cross-sectional outer contour of the cutter drum mounting cutter sector is a connection of polar coordinates point (0, R) to point (pi/4, p)_π/4) A straight line (73) in between; where ρ is_π/4＝(1-Cπ/4)R。

Technical Field

The invention relates to a combined drum chipper suitable for cutting thick blocks, thin slices or strip-shaped wooden objects, which is applied to cutting the thick blocks, the thin slices or the strip-shaped wooden objects into chips.

Background

The feeding mouth of the drum chipper consists of an upper feeding mouth jaw and a lower feeding mouth jaw, and the upper feeding mouth jaw comprises an upper feeding tooth roller set. The lower jaw of the feeding port comprises a lower feeding gear roller set. The tooth rollers in the upper feeding tooth roller group and the lower feeding tooth roller group are generally in a transverse tooth structure.

With the high requirements of social development on the ecological environment, people also step into a new era to make chips by using biomass raw materials, and the process is shifted to comprehensively using thick wood raw materials, thin wood raw materials and strip wood raw materials from the past by singly selecting thick wood raw materials. The phenomenon that the traditional drum chipper slips and crushes more sawdust when cutting a thin-sheet wooden raw material, and the jaw vibration amplitude on a feeding port is too large when cutting a strip-shaped wooden raw material.

The drum chipper is provided with a knife drum and a bed knife. The cutter drum consists of a drum body with a rotating shaft, a cutter and a cutter pressing block; the cutter pressing block is overlapped on the cutter, and the cutter pressing block and the cutter are fastened on the cutter seat of the drum body through bolts or screws. Two ends of the rotating shaft are arranged on the frame of the drum chipper through a bearing and a bearing seat. The rotating shaft is connected with a belt pulley on an output shaft of the motor through a belt pulley and a belt. When the motor output shaft rotates, the drum body rotates together with the rotating shaft. The cutter is thus also rotated, the cutting edge of the cutter making a circular movement about the axis of rotation. The bottom knife is arranged on a horizontal plane, and the cutting knife rotates to the position of the bottom knife to cut off the raw materials arranged on the bottom knife. The length of cut-off of the raw material is determined by the conveying speed of the chipping machine feeding mechanism and the time interval between the adjacent cutters passing through the bottom cutter.

The feeding mechanism conveys the raw material, which moves forward at a constant speed. The cut pellets flow out from the discharge port of the chipper; the cut raw materials are forcibly conveyed by the feeding mechanism and continuously move to the knife drum over the knife edge of the bottom knife at a constant speed. The cutter mounting mode of the cutter drum has two types: one is to install the cutter inside the drum body; the other is to install the cutter outside the drum body. In both mounting modes, the edge line of the cutter is arranged on the surface of the drum body and is parallel to the central line of the rotating shaft. The rotating drum body rotates while the feeding mechanism conveys the raw material. The cut material moves backwards and is often contacted with the outer surface of the drum body or the outer surface of the pressing cutter block, so that the material to be cut is damaged to generate wood chips in the pressed state.

The invention of the invention is a feeding device of drum chipper (CN 100500402C), the feeding mechanism is a feeding mouth composed of feeding mouth upper jaw and feeding mouth lower jaw. The feeding mouth upper jaw comprises an upper feeding gear roller set, a pendulum shaft and an upper jaw transmission device. The output shaft of the reducer in the upper jaw transmission device drives the main shaft of the highest upper feeding gear roller in the upper feeding gear roller group to rotate, and then chain transmission is carried out through a chain wheel in the transmission device to drive the main shafts of the other upper feeding gear rollers in the upper feeding gear roller group to rotate. The upper jaw of the feeding port is arranged on the base of the chipping machine through a swing shaft. According to different thicknesses of the cutting raw materials, the upper jaw of the feeding port swings up and down in a certain range around the swing shaft. The disadvantage is that the pendulum shaft is in high position, which causes the upper jaw of the feeding mouth to have large volume and loose structure; the swing shaft adopts a shaft sleeve structure, and the process of mounting or dismounting the swing shaft from the base is complicated.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a combined drum chipper which has a compact structure on a feeding port, is simple and convenient to mount or dismount from a frame, can replace the jaw tooth type on the feeding port in due time by manpower so as to avoid the phenomenon that thick blocks, thin slices or strip-shaped wooden objects are cut to slip and the jaw tooth on the feeding port shakes greatly, and is suitable for cutting thick blocks, thin slices or strip-shaped wooden objects. The invention also solves the problem of more wood chips.

The technical scheme of the invention is as follows: (a) a combined drum-type chipper suitable for cutting thick block, thin sheet or strip-shaped woody material comprises a body and a jaw on a feeding port; the machine body comprises a frame, a cutter drum, a bottom cutter and a lower jaw of a feed inlet, wherein the cutter drum, the bottom cutter and the lower jaw of the feed inlet are arranged on the frame;

the upper jaw of the feeding port is hinged with the frame;

the feeding port upper jaw comprises an upper jaw left side plate, an upper jaw right side plate, an upper jaw front cover plate, an upper jaw rear cover plate, an upper jaw upper cover plate and an upper jaw gear roller group; the two ends of the roll shaft of each tooth roller in the upper jaw tooth roller group are respectively arranged on the upper jaw left side plate and the upper jaw right side plate through a bearing seat and a bearing; chain wheels are arranged between the tooth rollers through the tail ends of the roll shafts to realize homodromous chain transmission; the upper jaw left side plate, the upper jaw right side plate, the upper jaw front cover plate, the upper jaw rear cover plate and the adjacent edges of the upper jaw upper cover plate are welded into a whole;

the cutter drum consists of a drum body with a rotating shaft and a cutter; the cutter is fixed on the drum body cutter holder by a cutter pressing block through screws or bolts; two ends of the rotating shaft are arranged on the frame through a bearing and a bearing seat;

it is characterized in that the upper jaw of the feeding mouth is a component and has the following characteristics from i to iv:

(i) the motor combined with the speed reducing mechanism is directly arranged at the rear part of the upper surface of the upper jaw upper cover plate through the mounting base and the backing plate;

(ii) a support plate extends from the lower part of the rear end of the upper jaw left side plate to the rear lower part, a hole is drilled in the support plate, and a bearing I is assembled in the hole in an interference fit manner;

(iii) a support plate extends from the lower part of the rear end of the right upper jaw plate to the rear lower part, a hole is drilled in the support plate, and a bearing II is assembled in the hole in an interference fit manner;

(iv) the bearing I and the bearing II are respectively connected with a pin hole I and a pin hole II on a chipping machine frame in a combined manner through two pin shafts;

the feeding mouth upper jaw combined with the machine body is one or two or three of a transverse tooth feeding mouth upper jaw, a longitudinal tooth feeding mouth upper jaw and a conical tooth feeding mouth upper jaw.

(b) a the combined drum chipper suitable for cutting thick blocks, thin slices or strip-shaped wooden objects is characterized in that the outline of the cross section of a sector of a cutter drum for mounting the cutter is positioned in a curve described by the following polar coordinate system equation:

ρ＝(1-Cφ)R

wherein rho is the pole diameter and the unit is m; phi is polar angle and unit is rad; the pole is the center of the rotating shaft, and the connecting line of the edge line of the cutter and the pole is a pole shaft; phi belongs to [0, pi/4 ];

c is V/omega R, V is the conveying speed of the raw material, and the unit is m/s; omega is the rotation angular velocity of the cutter, and the unit is rad/s;

r is the distance from the cutting edge of the cutter to the central line of the rotating shaft, and the unit is m.

(c) a or b, wherein the combined drum chipper is adapted for chipping a thick, thin or strip-shaped wooden material, and is characterized in that the lower edge of the upper jaw front cover plate is provided with a gap between teeth.

(d) c the combined drum chipper suitable for cutting thick blocks, thin sheets or strip-shaped wooden objects is characterized in that the outline of the cross section of a sector of a cutter drum for mounting the cutter is a connecting polar coordinate point (0, R) and a point (pi/4, rho)_π/4) Straight lines therebetween; where ρ is_π/4＝(1-Cπ/4)R。

Compared with the prior art, the invention has the following advantages:

1. the wooden raw material is cut according to the classification of thick blocks, thin slices and strip-shaped wooden objects, and the thick blocks of wooden objects are cut by a drum chipper formed by combining a flange on a transverse tooth feeding port with a machine body; the thin wooden substance is cut by a drum chipper formed by combining a longitudinal tooth feeding port upper jaw with a machine body; the strip-shaped wooden object is cut by a drum chipper formed by combining a conical tooth feeding port upper jaw with a machine body; the slipping and the large-amplitude shaking are avoided, and the working efficiency of the drum chipper is improved.

2. Through bearing I, bearing II and round pin axle I and round pin axle II, will go up the jaw integral erection and use on the pinhole I and the pinhole II of the frame left and right sides on the feed inlet, install motor together with speed reducing mechanism and just also exert pressure to the raw materials through the gear roll of last jaw gear roll group foremost around two pinhole pivoted moments on upper portion, increased the effort of carrying the raw materials, help avoiding carrying the phenomenon of skidding in the raw materials.

3. The pin holes I and II on the left side and the right side of the frame are close to the horizontal plane for conveying raw materials, and the swing shaft in the prior art is contracted into the inherently necessary space of the chipping machine from a high position, so that the volumes of the chipping machine and the jaw (assembly) on the feeding port are reduced to the maximum extent.

4. Go up the sword tooth roller set and install the inner space by last sword left side board, last sword right side board, last sword front shroud, last sword back shroud injectd, the motor that combines together with reduction gears is installed on last sword front shroud, and mechanical integration height.

5. Because the integration is high and the power is taken, the feeding mouth upper jaw can be produced independently as a small-volume device.

6. The feeding mouth upper jaw is provided with three types of horizontal tooth feeding mouth upper jaw, longitudinal tooth feeding mouth upper jaw and conical tooth feeding mouth upper jaw, and can be produced independently; in social production, according to the quantity of specific types of wooden material raw materials and the time required by cutting, the feeding ports of the required types can be mutually used, the heavy machine body is prevented from being carried, and the social cooperation cost is reduced.

7. One machine body is provided with three assemblies of the jaw on the transverse tooth feeding port, the jaw on the longitudinal tooth feeding port and the jaw on the conical tooth feeding port, which is equivalent to three drum chippers for cutting different types of wooden raw materials, two machine bodies are omitted, and the investment cost is reduced.

8. The damage of the wood raw material due to the extrusion of the knife drum body is avoided, and the utilization rate of the biomass raw material is improved; the productivity of the tablet is also improved.

9. The internal consumption between the driving power of the conveying mechanism and the driving power of the cutter drum is avoided, and the utilization efficiency of the electric power is improved.

10. The mechanical abrasion of the cutter drum body and the cutter pressing block is reduced, and the maintenance rate is reduced; the conveying mechanism is not interfered by the operation of the cutter drum and operates independently and stably; the stability of the whole chipping machine is improved, and the failure rate is reduced.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

In the figure, 1 is a bearing I, 3 is a bearing II, 5 is a right side plate of the upper jaw, 6 is a teeth roller group, 7 is a rear cover plate of the upper jaw, 9 is a backing plate, 11 is a mounting base, 13 is a motor combined with a speed reducing mechanism, 15 is an upper cover plate of the upper jaw, 17 is a front cover plate of the upper jaw, 18 is a tooth gap, 19 is a chain wheel cover I, and 21 is a left side plate of the upper jaw.

FIG. 2 is a side view of the left side plate of the upper jaw.

In the figure 1, the bearing I is shown, α is the included angle between the plane of the central line of each roller shaft of the upper jaw tooth roller group which is parallel to each other and the horizontal plane.

Fig. 3 is a schematic view of a front cover plate of an upper jaw according to an embodiment.

In the figure 23 is the longitudinal tooth through the tooth gap.

FIG. 4 is a schematic view of the embodiment of the longitudinal teeth passing through the tooth spaces in cooperation with the longitudinal teeth rollers of the upper jaw teeth roller set.

In the figure, 17 is a front flange, and 25 is a longitudinal toothed roller.

FIG. 5 is a schematic view of a chipper configuration with the feeding port removed.

In the figure, 27 is a main motor, 29 is a feeding mouth lower jaw, 31 is a pin hole II, 33 is a feeding conveyer belt, 35 is a discharging conveyer belt, 37 is a pin hole I, and 39 is a cutter drum.

FIG. 6 is a schematic view of a front flange plate according to an embodiment.

In the figure 41 is the transverse tooth through-tooth gap.

FIG. 7 is a schematic view of the structure of the second embodiment of the lateral teeth through tooth gaps for engagement with the lateral teeth rollers of the upper jaw teeth roller set.

In the figure, 17 is a front upper jaw cover, and 45 is a transverse toothed roller.

Fig. 8 is a schematic view of the front cover plate of the third embodiment.

In the figure 47 is the conical tooth through-tooth gap.

FIG. 9 is a schematic view of the arrangement of the third embodiment of the present invention for engaging the teeth of the third embodiment of the present invention through tooth spaces with the tapered teeth of the upper jaw teeth roll set.

In the figure, 17 is the upper jaw front cover plate, 51 is the taper gear roller.

Fig. 10 is a schematic structural view of the present invention.

In the figure, 37 is a pin hole I, 53 is a machine body, 55 is a feeding mouth upper jaw, and 31 is a pin hole II.

Fig. 11 is a schematic view of a prior art knife drum with a knife mounted inside the drum body.

In the figure, 61 is a rotating shaft, 63 is a drum body, 65 is a cutter, and 67 is a cutter pressing block.

Fig. 12 is a schematic view of a prior art knife drum with a knife mounted on the outside of the drum body.

In the figure, 61 is a rotating shaft, 63 is a drum body, 67 is a knife pressing block, and 65 is a cutting knife.

Fig. 13 is a schematic view of a drum mounted cutter sector of the drum shown in fig. 11.

The area shown at ∠ POA is the cutter drum mounting cutter sector.

Fig. 14 is a schematic view of a drum mounted cutter sector of the drum shown in fig. 12.

The area shown at ∠ POA is the cutter drum mounting cutter sector.

FIG. 15 is a cross-sectional view showing the relationship between the rotation of the drum and the feeding of the raw material.

In the figure, point O is a central line of a rotating shaft, point O is an origin of a rectangular coordinate system O-XY, OX is a polar axis, V is a conveying speed of a raw material, point A is an end point of the raw material after being cut, and is a point when a cutting edge of a cutter moves around the point O in a circular mode and passes through the horizontal plane of the OX axis, P is any point on the side face of a drum body in a sector of the cutter drum for mounting the cutter, R is a distance from the cutting edge of the cutter to the central line of the rotating shaft, rho is a distance from the point P to the central line of the rotating shaft, omega is a rotation angular speed of the cutter and is an angular speed of rotation of the drum body, t is time taken by the point P to rotate to the point A.

Fig. 16 is a schematic view of the improved structure of the knife drum of the invention.

In the figure, 61 is a rotating shaft, 63 is a drum, 67 is a cutter pressing block, 65 is a cutter pressing, and 69 is a drum holder.

Fig. 17 is a schematic view of the improved structure of the cutter drum of the invention combined with fig. 15.

In the figure 71 is the outer contour line of the cross section of the sector of the cutter drum for mounting the cutter according to the invention, which is in accordance with the curve described by the polar coordinate system equation p (1-C phi) R. 73 is a connection between polar coordinate point (0, R) and point (π/4, ρ)_π/4) Straight line in between.

Detailed Description

A combined drum chipper suitable for cutting thick blocks, thin slices or strip-shaped woody substances comprises a body (53) and a feeding mouth upper jaw (55); the machine body (53) comprises a frame, a cutter drum (39), a bed knife and a lower jaw (29) of a feeding port, wherein the cutter drum, the bed knife and the lower jaw are installed on the frame.

The upper jaw of the feeding port is hinged with the frame.

The feeding mouth upper jaw comprises an upper jaw left side plate (21), an upper jaw right side plate (5), an upper jaw front cover plate (17), an upper jaw rear cover plate (7), an upper jaw upper cover plate (15) and an upper jaw tooth roller set (6); the two ends of the roll shaft of each tooth roller in the upper jaw tooth roller group are respectively arranged on the upper jaw left side plate and the upper jaw right side plate through a bearing seat and a bearing; chain wheels are arranged between the tooth rollers through the tail ends of the roll shafts to realize homodromous chain transmission; the upper jaw left side plate, the upper jaw right side plate, the upper jaw front cover plate, the upper jaw rear cover plate and the upper jaw upper cover plate are welded together at adjacent edges.

The cutter drum consists of a drum body (63) with a rotating shaft (61) and a cutter (65); the cutter is fixed on a drum body cutter holder (69) through a screw or a bolt by a cutter pressing block (67); two ends of the rotating shaft are arranged on the frame through a bearing and a bearing seat.

The improvement of the invention is that the feeding mouth upper jaw is a component and has the following characteristics from i to iv:

(i) the motor (13) combined with the speed reducing mechanism is directly arranged at the rear part of the upper surface of the upper jaw upper cover plate (15) through the mounting base (11) and the backing plate (9).

(ii) A support plate extends from the lower part of the rear end of the upper jaw left side plate to the rear lower part, a hole is drilled in the support plate, and a bearing I (1) is assembled in the hole in an interference fit mode.

(iii) And a support plate extends from the lower part of the rear end of the upper jaw right side plate to the rear lower part, the support plate is drilled, and a bearing II (3) is assembled in the hole in an interference fit manner.

(iv) The bearing I (1) and the bearing II (3) are respectively connected with the machine body in a combined manner through two pin shafts and a pin hole I (37) and a pin hole II (31) on the chipping machine frame.

The feeding mouth upper jaw (55) combined with the machine body is one or two or three of a transverse tooth feeding mouth upper jaw, a longitudinal tooth feeding mouth upper jaw and a conical tooth feeding mouth upper jaw.

The manufacturer implements the invention by using the body and the feeding mouth flange as components for the user to combine themselves in use. During the combination, the upper jaw of the feeding mouth is arranged above the lower jaw of the feeding mouth (29), inner holes of the bearing I (1) and the bearing II (3) are respectively aligned with the pin hole I (37) and the pin hole II (31), and the pin shaft I and the pin shaft II are sequentially inserted into the aligned double holes. The pin hole I and the pin hole II are holes fixed on two side plates on the frame, and the bearing I and the bearing II are positioned on the inner sides of the two side plates in the combination; the central lines of the two pin shafts are kept collinear. Thus, the entire assembly of the feeding port flange is confined between the two side plates of the frame and floats about the pin shafts.

Go up the sword left and right side board and bear the installation at last sword upper cover plate upper surface rear portion and the motor weight that the reducing mechanism is combined together, the motor that combines together with the reducing mechanism exerts the effort to waiting to cut the raw materials in the feed inlet especially last sword tooth roller group forefront end tooth roller below through self gravity. Therefore, the thrust of the upper and lower toothed rollers for pinching and cutting the raw material to be cut is increased, and the slip phenomenon in conveying the raw material is reduced. The motor combined with the speed reducing mechanism is close to the two pin shafts and is positioned in the area where the floating amplitude of the whole device around the two pin shafts is minimum, and the design is reasonable. Go up the plate that the two board rear portions of a sword extend to the rear below around round pin axle wobbling swing arm system, press close to and carry the raw materials horizontal plane, the volume also reduces by a wide margin, shows the high integrated level of integrated device.

The number of the feeding mouth flanges used as the components is three: the upper jaw of the teeth feeding port in the transverse direction, the upper jaw of the teeth feeding port in the longitudinal direction and the upper jaw of the teeth feeding port in the conical shape. The three feed ports are all components that are dispensed together with the body for the user to select for use depending on the particular type of cutting material. The upper jaw of the transverse tooth feeding port is a feeding port upper jaw of a transverse tooth, wherein the tooth type on a tooth roller in the upper jaw tooth roller group is. The longitudinal tooth feeding mouth upper jaw is a feeding mouth upper jaw with longitudinal teeth in a tooth type on a tooth roller in the upper jaw tooth roller group. The teeth on the teeth roller in the upper jaw tooth roller group are tapered.

Because of the components, can also be produced separately. The manufacturer may provide the following prototype configuration models to the customer:

(I) the machine body and the upper jaw of the transverse tooth feeding port are used for cutting thick wood. The thick wood has enough strength, and is transported to the cutter drum by the upper jaw transverse tooth and the lower jaw transverse tooth in a moment oppositely clamping manner, and the thick wood stretches out a small section and is arranged on the bed knife for cutting the blade of the cutter drum cutter in rotation.

(II) the machine body and the upper jaw of the longitudinal tooth feeding port are used for cutting thin-sheet woody materials. The thin-sheet wooden object is softer and easy to curl, the upper jaw longitudinal teeth press the upper surface of the thin-sheet wooden object for protection and conveying, the lower jaw transverse teeth stir the lower surface of the thin-sheet wooden object for conveying, and the thin-sheet wooden object extends out of a small section and is placed on a bed knife for cutting by a rotating knife drum cutter blade.

(III) the machine body and the conical tooth feeding port are provided with two components of the jaw. For cutting thin-sheet wooden objects. Two adjacent conical teeth of the upper jaw are forked with a bar-shaped wooden object, the bar-shaped wooden object is conveyed to the cutter drum by the rotary lower jaw transverse tooth, and the bar-shaped wooden object stretches out a small section and is arranged on the bed knife for cutting the cutting edge of the cutter drum cutter in rotation.

(IV) three components of the machine body, the upper jaw of the transverse tooth feeding port and the upper jaw of the longitudinal tooth feeding port. Used for cutting thick wood objects and thin wood objects.

(V) three components of the machine body, the upper jaw of the transverse tooth feeding port and the upper jaw of the conical tooth feeding port. Used for cutting thick wood objects and strip wood objects.

(VI) the machine body, the longitudinal tooth feeding port upper jaw and the conical tooth feeding port upper jaw are combined. For cutting thin-sheet wooden objects and strip-shaped wooden objects.

(VII) four components of a body, a horizontal tooth feeding port upper jaw, a longitudinal tooth feeding port upper jaw and a conical tooth feeding port upper jaw. The cutting tool is used for cutting thick wood objects, thin wood objects and strip wood objects.

As customers scale up and wood feedstock varieties change, a manufacturing plant may provide the following components separately:

(VIII) body

(IX) Upper jaw of transverse tooth feeding mouth

(X) Upper jaw of longitudinal teeth feeding mouth

(XI) Upper jaw of conical tooth feeding mouth

The users who have 2-3 feeding mouth upper jaw assemblies can buy the machine body separately in order to increase the monthly output. When the types of the cutting wood raw materials are changed, only other types of feeding mouth upper jaw components are newly purchased, and the newly purchased feeding mouth upper jaw components and the original machine body are combined for use. The components can be shared among different users, the utilization rate of the original machine type is improved, and the social production cost is reduced. The weight of the flange on the feeding port is only 500 kg, which accounts for 17 percent of the weight of the whole machine. The volume (length x height x width) is only 85 x 87 x 73 cubic centimeters, which facilitates sharing of transport among users and transport at rework manufacturing plants.

In order to avoid the problem of more chips caused by the collision between the wood raw material and the outer edge of the cutter pressing block or the drum body during conveying, the outer contour line of the cross section of the cutter sector installed on the cutter drum is positioned in a curve described by the following polar coordinate system equation:

ρ＝(1-Cφ)R

wherein rho is the pole diameter and the unit is m; phi is polar angle and unit is rad; the pole is the center of the rotating shaft, and the connecting line of the edge line of the cutter and the pole is a pole shaft; phi belongs to [0, pi/4 ];

c is V/omega R, V is the conveying speed of the raw material, and the unit is m/s; omega is the rotation angular velocity of the cutter, and the unit is rad/s;

r is the distance from the cutting edge of the cutter to the central line of the rotating shaft, and the unit is m.

The central angle subtended by the mounting cutter sector is generally considered to be pi/4 or less. The other parts of the side surface of the drum body are not provided with cutters, the radial size of the drum body can be designed to be small at will, and the contour surface does not touch the raw materials in conveying during rotation. Only when the cutter needs to be fastened and reaches a certain linear speed, other mechanical fittings have to be used, and the distance between the cutting edge of the cutter and the rotating shaft has to be extended from the radial direction. The problem of the profile surface of the mounted cutter sectors touching the material being conveyed is also really encountered.

To solve the problem that the outer contour surface in the sector of the cutter drum for mounting the cutter does not contact the conveyed material, it can be considered that the cut material moves from point a to point a' within time t in fig. 15. The point P on the drum profile in the sector rotates at an angular velocity ω from point P to exactly point a' during time t. Obviously, the following equation holds true:

R-ρ＝Vt

the equation of the point P in the O-XY rectangular coordinate system is as follows:

x＝(R-Vt)cosωt…………①

y＝(R-Vt)sinωt…………②

let C be V/ω R, then the two equations above are:

x＝(1-Cωt)R cosωt…………③

y＝(1-Cωt)R sinωt…………④

from both ③ and ④, point P is a circular equation with a radius that varies with time.

ρ＝(1-Cωt)R

Note that ω t is also the angle (polar angle) between point P and point a (cutter edge) on the profile plane in the polar coordinate system, so the equation in the polar coordinate system for the cross-sectional profile of the cutter drum mounting cutter sector is obtained:

ρ＝(1-Cφ)R

any profile surface inside the profile surface can not touch the raw material in conveying during the rotation of the knife drum, and the knife drum is a safety line during the design of the knife drum.

In order to simplify the manufacturing process of the molded line, the outer contour line of the cross section of the sector of the cutter drum provided with the cutter is used for connecting a polar coordinate point (0, R) and a point (pi/4, rho)_π/4) A straight line (73) in between; where ρ is_π/4＝(1-Cπ/4)R。

Substituting C into V/ω R_π/4(1-C pi/4) R gives the following formula:

ρ_π/4＝(1-Vπ/4ωR)R

under the condition of setting the raw material conveying speed V, the rho can be increased by increasing the angular speed omega of the rotating shaft and increasing the distance R between the cutter and the rotating shaft_π/4And as a result the straight line will become steeper as seen in fig. 17, which ensures that the insert has sufficient design space for the thickness to be selected. Generally, p_π/4>0.95R can meet the actual requirement.

For example, the material conveying speed V is 27.9 m/min 0.456 m/s.

The knife drum speed 487 revolutions per minute. The period T is 60/487 seconds.

ω＝2π/T＝2π*487/60＝16.23πrad/s

Let R equal to 0.3m, the knife drum adopts a double-knife symmetrical design, and the length of the cut raw material slice grain is V pi/omega equal to 0.456/16.23 equal to 0.0281m equal to 2.8cm

At this time, ρ_π/4＝(1-0.456*π/4*16.23π*0.3)R＝0.977R。

In order to avoid the back rolling of the conveyed raw material and keep the cleaning of the front end tooth roller of the upper jaw tooth roller group of the feeding opening, the lower edge of the upper jaw front cover plate (17) of the invention is provided with a tooth gap (18). The lower edge of the upper flange front cover plate (17) is provided with a tooth clearance (18). The roller teeth of the most front end tooth roller of the upper jaw tooth roller group pass through the tooth passing gap, and the edge and the side wall of the tooth passing gap are stripped or cleaned to remove raw materials stuck on the teeth.

When the feeding device works, the motor combined with the speed reducing mechanism drives all the gear rollers in the upper feeding gear roller group to rotate in the same direction, the upper jaw gear rollers rotating in the same direction are matched with the lower jaw gear roller group of the lower jaw (29) of the feeding port, and raw materials on the feeding conveying belt (33) are clamped and conveyed between the drum cutter and the bed knife. The upper jaw of the feeding port with other tooth shapes is replaced by only detaching the two pin shafts and connecting the two bearings with other tooth shapes with the pin holes I (37) and II (31) on the chipper frame by the same two pin shafts.