Wood chip stacking warehouse

Abstract

Wood chips are piled in a piling area, a conveying belt, a track and the piling area are arranged, a discharging screw stretches across the piling area, the discharging screw pokes the wood chips on the bottom edge of a wood chip pile in the piling area to the conveying belt when rotating, the two ends of the discharging screw are rotationally connected with corresponding traveling frames respectively, and the traveling frames are suitable for traveling along the track. And the discharging screw is fed along the stacking area in a positioning manner. Compared with the prior art, the discharging screw continuously supplies wood chips to the conveying belt at a stable speed, so that the conveying belt continuously supplies wood chips to equipment such as a wood shaving machine at a stable speed, the input cost of a forklift and workers is reduced, the labor intensity of the workers is reduced, and collision of people and vehicles in a stacking area is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to wood chip processing, especially to a wood chip storage yard. BACKGROUND

[0002] Wood is a valuable resource for people's life, and the rational use of wood is one of the focuses of the state and wood-based panel enterprises. Specifically, in wood processing enterprises, after cutting straight and thick wood segments, residual wood and wood chips derived from cutting are waste products. This residual wood will also be crushed into wood chips. Therefore, wood processing enterprises derive various wood chips, which are directly discarded or used as firewood, which is relatively wasteful. The rational use of wood chips by particle board enterprises will greatly benefit the full use of wood resources.

[0003] Particle board enterprises purchase wood chips and store them in a storage yard. The wood chips are transported to the planer through a conveyor belt in the stacking area. The length and width of the storage yard are generally greater than 10 meters, and the wood chip storage yard (wood chip storage and retrieval device) is a large storage device.

[0004] The existing technology mainly uses a forklift to shovel wood chips from the stacking area and then transfer them to the conveyor belt. In this method, when a single forklift is used, the forklift shoveling, transferring, and dumping are three non-synchronous processes, causing intermittent wood chip transportation, which is not conducive to the continuous operation of the planer. When at least two forklifts are used, there is a risk of collision between the forklifts when they are moving, the vehicle and personnel oil consumption cost is relatively high, and the dumping rate of the forklift is also relatively unstable. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve at least one of the above-mentioned technical problems, and provides a wood chip storage yard that can continuously and stably output wood chips, reduce personnel involvement and risks, and reduce costs.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A wood chip storage yard includes a stacking area, a conveyor belt, a track, and a discharge screw. The stacking area is suitable for storing wood chips. The conveyor belt is arranged with the stacking area. The track is arranged with the stacking area. The discharge screw spans the stacking area. The discharge screw is suitable for rotating to push the wood chips at the bottom edge of the wood chip pile in the stacking area to the conveyor belt. The two ends of the discharge screw are respectively connected to corresponding traveling cranes. The traveling wheels of at least one traveling crane are transmission connected to a traveling crane motor. The traveling crane is suitable for walking along the track to adjust the position of the discharge screw along the stacking area.

[0008] Compared with the prior art, the application has the following advantages: the discharge screw continuously and stably supplies wood chips to the conveyor belt, which facilitates the continuous and stable supply of wood chips to the planer and other equipment by the conveyor belt, reduces the input cost of forklifts and workers, reduces the labor intensity of workers, and avoids collisions between people and vehicles in the stacking area.

[0009] As an improvement of the above technical solution, the discharging screw is rotationally connected with a surrounding fence, the surrounding fence is adapted to be flipped to the front side or the rear side of the discharging screw, and the surrounding fence is used to jointly define a discharging channel with the wood chip pile, which is suitable for rotation of the discharging screw.

[0010] As an improvement of the above technical solution, the discharging screw is drivingly connected with a torque sensor, the traveling motor and the torque sensor are both electrically connected with a central processor, the central processor is adapted to control the traveling motor to perform the feeding according to that the feedback value of the torque sensor is lower than a threshold value, and the central processor is adapted to control the traveling motor to pause according to that the feedback value of the torque sensor is higher than a limit value.

[0011] As an improvement of the above technical solution, the traveling frame is provided with a front-limit proximity switch adapted to detect that the traveling frame travels to the front limit of the stacking area, and a rear-limit proximity switch adapted to detect that the traveling frame travels to the rear limit of the stacking area, the front-limit proximity switch, the rear-limit proximity switch and the traveling motor are all electrically connected with a central processor, the central processor is adapted to control the traveling motor to be positioned rearward as the feeding direction according to that the front-limit proximity switch is detected, and the central processor is adapted to control the traveling motor to be positioned forward as the feeding direction according to that the rear-limit proximity switch is detected.

[0012] As an improvement of the above technical solution, the two ends of the stacking area are provided with surrounding walls, the two sides of the stacking area are both provided with a plurality of blocking pieces arranged along the axial direction, the adjacent blocking pieces are spliced, and the two sides of the stacking area are provided with a limiting ground groove and a limiting sky window, the limiting ground groove is adapted to accommodate the lower end of the corresponding blocking piece, and the limiting sky window is adapted to the up-and-down movement of the blocking piece, one end of the discharging screw close to the conveying belt is rotationally connected with a top frame, and the other end is rotationally connected with a top block, the top frame and the top block are both triangular or trapezoidal, the bottom edge is adapted to be accommodated in the limiting ground groove, the two waists are adapted to the climbing or sliding of the blocking piece, and the abdominal hole of the top frame is adapted to discharge the wood chips.

[0013] As an improvement of the above technical solution, the limiting ground groove accommodates a roller, the bottom edge of the top frame and the top block is provided with a plurality of first recesses adapted to ride over the corresponding roller, and the top frame and the top block are both adapted to move along the limiting ground groove while riding over the roller.

[0014] As an improvement of the above technical solution, the inner side of the top block is connected with a shielding plate, the shielding plate is adapted to isolate the lower end of the blocking piece that has been lifted by the top block from the wood chips, and the shielding plate is adapted to isolate the section of the limiting ground groove from which the blocking piece has been pulled out from the wood chips.

[0015] As an improvement to the above technical solution, the top frame is trapezoidal, and a second recess is provided on the top edge of the top frame. The second recess is provided with a follower screw extending along the top edge. The follower screw is rotatably connected to the top frame, and a baffle on any side of the top frame is adapted to transition to the other side via the follower screw.

[0016] As an improvement to the above technical solution, a notch is provided on the discharge side of the stacking area and a limit and guide bar is connected thereto. The discharge side of the stacking area and the limit and guide bar together limit the notch to a corresponding limit groove. The limit and guide bar is provided with an inclined eave suitable for guiding the wood chips to the conveyor belt.

[0017] As an improvement to the above technical solution, multiple feed belts are distributed axially at intervals above the stack area. Attached Figure Description

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the wood chip storage structure according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A partial sectional view of the wood chip stack from the rear view is shown;

[0021] Figure 3 for Figure 2 A partial structural diagram of the wood chip storage facility is shown;

[0022] Figure 4 for Figure 1 A schematic diagram showing the structure of the wood chip warehouse after some components are hidden;

[0023] Figure 5 for Figure 4 A partial structural diagram of the wood chip storage facility is shown. Figure 1 ;

[0024] Figure 6 for Figure 4 A partial structural diagram of the wood chip storage facility is shown. Figure 2 ;

[0025] Figure 7 for Figure 1 This diagram shows a partial structural view of the wood chip warehouse from another three-dimensional perspective.

[0026] Figure 8 for Figure 7 An exploded view of the structure with its components hidden is shown.

[0027] Figure 9 This is a schematic diagram of the trapezoidal top frame structure of the wood chip storage warehouse according to an embodiment of this utility model.

[0028] The drawings are only one of the specific embodiments of the present application, and the form and structure of the specific embodiment should not limit the widening of other embodiments.

[0029] Stacking area 100, limiting groove 110, limiting plate 120, limiting and guiding strip 130,

[0030] Conveyor belt 200,

[0031] Track 310, trolley frame 320, trolley wheel 321, second driven sprocket 322,

[0032] Discharge screw 400, first driven sprocket 410;

[0033] Fence 500, first mounting ear 510, second mounting ear 520,

[0034] Fence 610, baffle 620,

[0035] Top frame 710, second recess 711, follow-up screw 712, top block 720, shutter 721,

[0036] Feeding belt 800,

[0037] Stacking fence 900. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] Referring to Figures 1 to 3 The present application provides a wood chip stacking warehouse (wood chip storage and retrieval device), which comprises a stacking area 100, a conveyor belt 200, a track 310 and a discharge screw 400. The stacking area 100 is suitable for stacking wood chips. The conveyor belt 200 is arranged with the stacking area 100. The track 310 is arranged with the stacking area 100. The discharge screw 400 spans the stacking area 100. When the discharge screw 400 rotates, it pushes the wood chips at the bottom edge of the wood chip stack in the stacking area 100 to the conveyor belt 200. The two ends of the discharge screw 400 are respectively rotationally connected to corresponding trolley frames 320. The trolley wheel 321 of at least one trolley frame 320 is drivingly connected to a trolley motor. The trolley frame 320 is suitable for walking along the track 310, so that the discharge screw 400 is positioned along the stacking area 100.

[0040] It can be understood that the conveying belt 200 includes a belt, a belt pulley, and a conveying motor, both ends of the belt are distributed around the corresponding belt pulley, that is, at least two belt pulleys are provided, and at least one belt pulley is drivingly connected to the conveying motor.

[0041] On the other hand, the trolley frame 320 has n columns of trolley wheels 321, and the track 310 includes n parallel tracks; preferably, the trolley frame 320 is provided with 2 columns of trolley wheels 321, and the track 310 is provided with 2 parallel tracks. Referring to Figures 1 to 3 、 Figure 5 and Figure 6 , the trolley motor chain drives the trolley wheel 321, and the rotating shaft of the trolley wheel 321 is provided with a second driven sprocket 322, the trolley frame 320 in the figure hides the trolley motor and the second driving sprocket thereon, and the second driven sprocket 322 is drivingly connected to the trolley motor through the second chain and the second driving sprocket. The trolley motor can also drive the trolley wheel 321 through a gear train, a belt, etc.

[0042] It can be understood that the discharging screw 400 is drivingly connected to a discharging motor. Referring to Figures 1 to 3 、 Figure 5 and Figure 6 , the discharging motor chain drives the discharging screw 400, and the discharging screw 400 is provided with a first driven sprocket 410, the trolley frame 320 in the figure hides the discharging motor and the first driving sprocket thereon, and the first driven sprocket 410 is drivingly connected to the discharging motor through the first chain and the first driving sprocket. The discharging motor can also drive the discharging screw 400 through a gear train, a belt, etc.

[0043] Electric motor (electric motor / electric motor), pneumatic motor and hydraulic motor all belong to motor.

[0044] A wood chip storage and discharging method, comprising the following steps:

[0045] Storage, referring to the V1 and V2 directions shown in Figure 1 and Figure 2 , the wood chips are poured into the stacking area 100 to form a wood chip pile in the stacking area 100;

[0046] Feeding, the discharging screw 400 is extruded to the wood chip pile, so that the first wood chips to be discharged are stored in the thread gap of the discharging screw 400;

[0047] Discharging, referring to the V3 direction shown in Figure 1 and Figure 2 , the discharging screw 400 rotates, and the thread piece of the discharging screw 400 drives the first wood chips to be discharged to move along the axial direction of the discharging screw 400, and the first wood chips to be discharged are scraped to the conveying belt 200;

[0048] Discharging, referring to the V3 direction shown in Figure 1 and Figure 2The V4 direction, the conveyor belt 200 circulating rotation, the wood chip pile 100 arranged by the conveyor belt 200 output;

[0049] Wherein, the discharge screw 400 rotation, the discharge screw 400 continuously or intermittently extruded to the wood chip pile, so that the lower end of the discharge screw 400 is buried by one or more layers of wood chips, so that the discharge screw 400 thread gap has one or more layers of the first wood chip, and the conveyor belt 200 continuously circulating rotation. The discharge screw 400 gnawing wood chip pile of one edge, rather than a single point, so that the wood chip pile collapse more stable and orderly.

[0050] Referring to Figures 1 to 3 , the discharge screw 400 rotation, to continuously scrape the wood chip to the conveyor belt 200, the conveyor belt 200 continuously circulating rotation, to constantly supply wood chip to the shavings machine.

[0051] It can be understood that, according to Figure 1 and Figure 3 , according to the conveyor belt 200 is located in the left end or right end of the discharge screw 400, the discharge screw 400 according to the corresponding rotation direction, the discharge screw 400 will be scraped to the wood chip conveyor belt 200. Whether the trolley 320 will be forward or backward to the discharge screw 400, the conveyor belt 200 is always located in the left end or right end of the discharge screw 400, the discharge screw 400 always according to the corresponding direction to scrape the wood chip. On the other hand, it can be understood that, according to the shape of the material pile and the characteristics of the collapse, according to Figure 1 and Figure 3 , the discharge screw 400 scraping the material at the bottom edge of the material pile.

[0052] In some designs, the discharge screw 400 is not provided with the surrounding 500; when the discharge screw 400 front and back two sides and the lower end is buried by wood chip, the discharge screw 400 rotation and essentially start to drive the wood chip, so that the wood chip is arranged to the conveyor belt 200. Referring to Figures 1 to 3 , Figure 6, the front side of the discharging screw 400 exists a wood pile to be discharged, the trolley frame 320 is suitable for driving the discharging screw 400 to be positioned forward, so as to be extruded to the wood pile, so that the front side of the discharging screw 400 is first buried, the discharging screw 400 is then rotated for a period of time, so that the rear side of the discharging screw 400 is buried with one or more layers of wood for use, the thread gap of the discharging screw 400 stores one or more layers of first-discharged wood, that is, the wood for use layer and the wood pile, and a discharging channel is defined between the wood for use layer and the wood pile, the first-discharged wood exists in the discharging channel, and the discharging screw 400 continues to rotate to scrape the first-discharged wood to the conveying belt 200. Therefore, in this mode, the discharging screw 400 and the wood complement each other, and one or more layers of wood for use are always reserved on the front and rear sides of the discharging screw 400, and the wood pile area 100 needs to remain the wood for use which is difficult to discharge by the discharging screw 400. It can be understood that, when the discharging screw 400 wants to synchronously discharge multiple layers of wood (so as to improve the wood pile discharge rate), the discharging screw 400 needs to be extruded to the wood pile more deeply (that is, the cutting amount is increased), and the rear side of the discharging screw 400 needs to reserve multiple layers of wood for use; similarly, when the discharging screw 400 is only provided with one layer of wood for use, the wood pile discharge efficiency is relatively low.

[0053] To solve the discharging sufficiency of the wood pile area 100, with reference to Figure 1 , Figure 4 , Figure 5 , Figure 7 and Figure 8 , in some embodiments of the present application, the discharging screw 400 is rotationally connected with a surrounding fence 500, in the cutting step, the surrounding fence 500 is suitable for being turned to the front side or the rear side of the discharging screw 400, and the discharging screw 400 drags the surrounding fence 500 to be extruded to the wood pile, and the surrounding fence 500 is used to define a discharging channel suitable for the rotation of the discharging screw 400 together with the wood pile. With reference to Figures 1 to 3 , Figure 6 , the discharging screw 400 first performs the discharging of the wood pile on the front side, and the surrounding fence 500 is first turned to the rear side of the discharging screw 400; specifically, the trolley frame 320 can drive the discharging screw 400 to be positioned forward at a relatively low rate (that is, the discharging screw 400 presents a forward cutting hob), such as 2 mm / s, the discharging screw 400 is extruded to the wood pile, so that the lower end of the discharging screw 400 is continuously buried with one or more layers of wood, a discharging channel is defined between the surrounding fence 500 and the wood pile, the discharging screw 400 is rotated, the thread piece of the discharging screw 400 scrapes the first-discharged wood to the conveying belt 200; when the wood pile on the front side of the discharging screw 400 is discharged, the surrounding fence 500 is turned, so that the surrounding fence 500 is turned to the front side of the discharging screw 400, the trolley frame 320 drives the discharging screw 400 to be positioned backward, and the discharging screw 400 is extruded to the new wood pile behind the discharging screw 400.

[0054] It can be understood that, with reference to Figure 1When the rower frame 320 drives the discharging screw 400 to extrude the wood chip pile forward, the discharging screw 400 can start to pile new wood chip pile on the rear side of the discharging screw 400 when the discharging screw 400 performs discharging of the wood chip pile on the front side.

[0055] The length and width of the stacking area 100 is at least 10 meters, in order to solve the dismounting and replacing of the fence 500, the first mounting lug 510 is detachably connected to one end of the fence 500, and the second mounting lug 520 is integrally formed or detachably connected to the other end of the fence 500. Figure 8 The fence 500 is rotatably connected to the discharging screw 400 through the first mounting lug 510 and the second mounting lug 520, so that the fence 500 can rotate around the axis of the discharging screw 400, and the fence 500 can be turned to the front side or the rear side of the discharging screw 400.

[0056] Compared with the prior art, the beneficial effects of the present application include that the discharging screw 400 continuously and stably supplies wood chips to the conveying belt 200, which facilitates the conveying belt 200 to continuously and stably supply wood chips to the flaking machine and other equipment, reduces the input cost of the forklift and the worker, reduces the labor intensity of the worker, and avoids the collision between the forklift and the worker in the stacking area.

[0057] The cable arrangement problem of the rower motor and the discharging motor is not solved, the overhead bridge extending along the axis of the track 310 is arranged above the track 310, a plurality of pulleys are arranged on the overhead bridge, the pulleys are adapted to walk along the overhead bridge, and the cables are connected to the shafts of the corresponding pulleys at a certain length interval; therefore, when the rower frame 320 drives the discharging screw 400 to move forward and backward, the cables are stretched or redundant.

[0058] In some designs, according to the discharging speed of the discharging screw 400, the rower frame 320 and the discharging screw 400 move / advance at a constant rate; in the advancing step, the rower frame 320 drives the discharging screw 400 to advance at a constant rate. In some designs, the shift table and the control buttons are arranged on the rower frame 320, and the rower motor is electrically connected to the corresponding control buttons; when the worker on the shift table finds that the discharging screw 400 has a small amount of cutting (i.e., the discharging screw 400 extrudes the wood chip pile shallowly, and the discharging screw 400 is buried with less wood chips), the worker controls the rower frame 320 to move through the control buttons, so that the discharging screw 400 can be buried in more wood chips.

[0059] In some embodiments of the utility model, the discharging screw rod 400 is transmission connection with torque sensor, such as the torque detection module of partial motor, the torque detection module of encoder, the torque detection module of motor dynamometer, the travelling motor and torque sensor are all electric connection central processing unit, central processing unit is suitable according to the feedback value of torque sensor is lower than threshold, and control travelling motor executes feeding, central processing unit is suitable according to the feedback value of torque sensor is higher than limit, and control travelling motor pauses. It can be understood that partial motor is electric connection central processing unit through motor driver, and the torque detection module of motor driver is electric connection central processing unit through motor driver. On the other hand, central processing unit can be common ECU, such as PLC, single-chip microcomputer etc., can also be CPU. In the feeding step, when the torque of discharging screw rod 400 is less than threshold, travelling frame 320 drives discharging screw rod 400 and pushes to wood chip pile, when the torque of discharging screw rod 400 is greater than limit, travelling frame 320 and discharging screw rod 400 pause feeding.

[0060] In partial design, the operating switch (knob or button etc.) suitable for determining that travelling frame 320 is forward or backward is the travelling / feeding direction is arranged on travelling frame 320, operating switch is electric connection central processing unit, and / or, travelling motor is transmission connection travelling wheel 321 through gear train, and the shifting lever suitable for operating gear train to execute positive transmission or reverse transmission is arranged on travelling frame 320;When worker sees that discharging screw rod 400 is about to walk to the foremost end or last end of pile area 100, worker executes the operating switch or the shifting lever, makes travelling frame 320 and discharging screw rod 400 turn back and adjust position.

[0061] In some embodiments of the utility model, travelling frame 320 is provided with front limit proximity switch suitable for detecting that travelling frame 320 walks to the front limit of pile area 100 and rear limit proximity switch suitable for detecting that travelling frame 320 walks to the rear limit of pile area 100, and front limit proximity switch, rear limit proximity switch and travelling motor are all electric connection central processing unit, central processing unit is suitable according to the detection of front limit proximity switch, and controls travelling motor to take rear adjustment as feeding direction, central processing unit is suitable according to the detection of rear limit proximity switch, and controls travelling motor to take forward adjustment as feeding direction. Its control principle is similar to positive and reverse dragging control of three-phase asynchronous motor, two limit switches are respectively connected in series with the coil of corresponding relay, and the first normally open contact of the relay is connected in parallel, the first normally open contact of the relay is connected in series with the coil of corresponding contactor, that is, the contactor is positive / reverse adjustment contactor, and the first normally open contact of the contactor associated with the two limit switches is used to control the power supply of travelling motor.

[0062] It can be understood that front limit proximity switch and rear limit proximity switch can be sensors, or mechanical switches (contact switches with levers).

[0063] Refer toFigures 1 to 8 In some embodiments of the utility model, the both ends of the stacking area 100 are provided with the enclosing wall 610, the both sides of the stacking area 100 are provided with a plurality of baffle plates 620 arranged along the axial direction, the adjacent baffle plates 620 are spliced, and the both sides of the stacking area 100 are provided with the limiting ground groove 110 and the limiting skylight, the limiting ground groove 110 is suitable for accommodating the lower end of the corresponding plurality of baffle plates 620, the limiting skylight is suitable for the up-and-down movement of the baffle plate 620, one end of the discharging screw rod 400 close to the conveying belt 200 is rotationally connected with the top frame 710, and the other end is rotationally connected with the top block 720, the top frame 710 and the top block 720 are both triangular or trapezoidal, and the bottom edge is suitable for being accommodated in the limiting ground groove 110, the two waists are suitable for the climbing or sliding of the baffle plate 620, and the abdominal hole of the top frame 710 is suitable for discharging the wood chips. In the feeding step, the trolley frame 320 drives the discharging screw rod 400 to move forward or backward to adjust the position, the discharging screw rod 400 drives the top frame 710 and the top block 720 to move, so that the top frame 710 and the top block 720 are both relatively climbed by one waist of the corresponding baffle plate 620 and relatively slid by the other waist of the corresponding baffle plate 620. When the discharging screw rod 400 rotates, the top frame 710 and the top block 720 are both clamped by the two bottom corners, so that the bottom edge is kept accommodated in the limiting ground groove 110.

[0064] For the "climbing or sliding of the baffle plate 620", it can be understood that it is the relativity of movement; in practice, the top frame 710 and the top block 720 are both used in the movement to shovel up the baffle plate 620, and then use the corresponding waist to hold up the baffle plate 620, and the other waist allows the baffle plate 620 to slide in the movement.

[0065] The utility model adopts the triangular or trapezoidal top frame that moves with the top block, which solves the problem that the discharging screw rod 400 can be lifted up to the baffle plate 620 close to the discharging screw rod 400 when moving forward or backward, avoids the influence of the baffle plate 620 on the rotation of the discharging screw rod 400, and solves the technical problem that the discharging screw rod 400 moves smoothly without obstruction, and the discharging end of the discharging screw rod 400 discharges smoothly without obstruction; that is, the stacking area 100 can be flexibly opened and closed at any position; the top frame 710 and the top block 720 are both limited by two corners, which avoids the top frame 710 and the top block 720 from being turned over (forward or reverse), and the top frame 710 and the top block 720 are both allowed to rotate and adjust the position forward and backward with the discharging screw rod 400, so that the baffle plate 620 can climb or slide.

[0066] Referring to Figure 2 , Figure 3 , the left and right sides of the stacking area 100 are both provided with two limiting plates 120, and the two limiting plates 120 define the limiting skylight. Referring to Figure 1 , Figure 4 , Figures 6 to 8 , the lower end of the baffle plate 620 is chamfered or rounded, which improves the convenience of lifting the baffle plate 620.

[0067] On the other hand, the lower end of the baffle 620 can be fixed by the limiting groove 110, and the bottom edge and corners of both the top frame 710 and the top block 720 are suitable for effectively lifting the baffle 620 and removing any wood chips that may be stuck in the limiting groove 110. The baffle 620 can be easily and quickly disassembled by simply inserting or removing it. The top frame 710 and the top block 720 are triangular or trapezoidal, and they are relatively balanced in terms of force distribution.

[0068] In addition, only the baffles 620 that approach the discharge screw 400 are raised and lowered, while the baffles 620 in other areas remain stationary to surround the wood chips. The area approaching the discharge screw 400 is also the area where the material pile is relatively shallow, so the baffles 620 that need to be raised and lowered can be raised and lowered flexibly.

[0069] In some configurations, the two ends of the discharge screw 400 are rotatably connected to corresponding sliders. The sliders are connected to the perimeter wall of the stacking area 100 via telescopic plates. The telescopic plates are similar to the commonly used machine tool reinforcing ribs (used to cover the screw and nut assembly). Compared to the baffle plate 620 method mentioned above, the telescopic plate needs to both surround and extend the wood chips, so the telescopic plate's extension and retraction power is more energy-intensive. Inside the telescopic plate, the overall shape of the telescopic plate is maintained by the interlocking of sub-plates. Therefore, each sub-plate is a weak point of the telescopic plate, resulting in lower overall strength. To ensure telescopic flexibility, the sub-plates require high precision and resistance to deformation.

[0070] Reference Figures 5 to 9 On the other hand, in order to ensure that the baffle 620 rises and falls relatively smoothly, the two sides of the top frame 710 are relatively flat, and there is a certain distance between the bottom corner of the top frame 710 and the discharge screw 400. The ventral hole of the top frame 710 in this distance area is suitable for naturally discharging some wood chips in advance. Compared with the discharge screw 400, no power source is required.

[0071] In some embodiments of this utility model, a roller is accommodated in the limiting groove 110, as shown in the reference. Figure 8 , Figure 9 Both the top frame 710 and the top block 720 have multiple first recesses on their bottom edges suitable for straddling corresponding rollers. Both the top frame 710 and the top block 720 are designed to ride on the rollers and move along the limiting groove 110. In this invention, the top frame 710 and the top block 720 can move smoothly with the discharge screw 400, reducing the resistance of the traveling frame 320 driving the top frame 710 and the top block 720. The top frame 710 and the top block 720 can more effectively lift the baffle 620 and the wood chips within the limiting groove 110.

[0072] Reference Figure 8In some embodiments of the utility model, the inner side of top block 720 is connected with shutter 721, shutter 721 is suitable for isolating the lower end of baffle 620 that has been lifted by top block 720, and shutter 721 is suitable for isolating the section of baffle 620 that has been pulled out of limiting ground groove 110. On the other hand, the body of top block 720 can be in a frame mode, which is lighter, and shutter 721 is thin and suitable for closing the abdominal hole of top block 720; the body of top block 720 can also be a closed plate, and shutter 721 is a shield of the body of top block. Shutter 721 is preferably integrally formed with the body of top block.

[0073] Referring to Figure 9 In some embodiments of the utility model, the top frame 710 is trapezoidal, the top edge of the top frame 710 is provided with a second recess 711, the second recess 711 is provided with a follow-up screw rod 712 extending along the top edge, the follow-up screw rod 712 is rotationally connected to the top frame 710, and the baffle 620 on any waist of the top frame 710 is suitable for being transferred to the other waist through the follow-up screw rod 712. When wood chips are clamped between the climbing baffle 620 and the top frame 710, the clamped wood chips will climb onto the follow-up screw rod 712, and then move axially along the follow-up screw rod 712 while also rotating the follow-up screw rod 712, so that the follow-up screw rod 712 pushes the clamped wood chips to both sides of the top frame 710, so that the wood chips are separated from the clamping.

[0074] Referring to Figure 3 , Figure 4 In some embodiments of the utility model, the discharge side of the stacking area 100 is provided with a notch and connected with a limiting and guiding strip 130, and the discharge side of the stacking area 100 and the limiting and guiding strip 130 jointly limit the notch as a corresponding limiting ground groove 110, and the limiting and guiding strip 130 is provided with a sloping eave suitable for guiding the wood chips to the conveying belt 200.

[0075] Referring to Figure 1 In some embodiments of the utility model, a plurality of feeding belts 800 are distributed axially at intervals above the stacking area 100, and the plurality of feeding belts 800 can be the same wood for storage or different woods for storage. Correspondingly, the discharge screw rod 400 can be provided with a plurality of discharge screw rods 400, and each discharge screw rod 400 is rotationally connected to a different trolley frame 320; each discharge screw rod 400 can be used to scrape and discharge the same wood, or can be used to scrape and discharge different woods.

[0076] On the other hand, one end of the feeding belt 800 flows wood chips into the stacking area 100, and the other end can be wood received by a feeding hopper, and the feeding hopper is suitable for receiving wood chips poured by a vehicle; the other end of the feeding belt 800 can also be wood received by a chipper, and the chipper breaks wood, branches, and the like to obtain wood chips, which are stored in the stacking area 100 through the feeding belt 800. Among them, the feeding belt 800 generally needs to be inclined, and the low end is suitable for the vehicle or the chipper to fall into the wood chips.

[0077] In some embodiments of the utility model, the stacking area 100 is provided with a re-stacking high fence 900 which is higher than the enclosing wall 610 and the baffle 620, the re-stacking high fence 900 is located in the core of the stacking area 100, and the feeding belt 800 is suitable for falling into the wood chips to the re-stacking high fence 900. According to the characteristics of the material pile, the fence is arranged at the core position of the stacking area 100, and the stackable height of the wood chip stacking yard can be further increased.

[0078] The above embodiments are only used to illustrate the technical solutions of the utility model and not to limit them, and any modification or equivalent replacement which does not deviate from the spirit and scope of the utility model should be covered in the scope of the technical solutions of the utility model.

Claims

1. A chip yard, characterized in that The invention relates to a wood chip pile area, a conveying belt arranged in the wood chip pile area, a track arranged in the wood chip pile area, a discharging screw arranged across the wood chip pile area, the discharging screw being adapted to push the wood chips at the bottom edge of the wood chip pile area to the conveying belt when rotating, two ends of the discharging screw being respectively rotatably connected to corresponding travelling frames, at least one travelling wheel of the travelling frame being drivingly connected to a travelling motor, the travelling frame being adapted to travel along the track to position the discharging screw along the wood chip pile area. The discharging screw is rotatably connected to a surrounding fence, the surrounding fence being adapted to be flipped to the front side or the rear side of the discharging screw, the surrounding fence being used to jointly define a discharging channel with the wood chip pile area, the discharging channel being adapted to the rotation of the discharging screw. The discharging screw is drivingly connected to a torque sensor, the travelling motor and the torque sensor are both electrically connected to a central processing unit, the central processing unit being adapted to control the travelling motor to perform a feed motion according to the feedback value of the torque sensor being lower than a threshold value, the central processing unit being adapted to control the travelling motor to pause according to the feedback value of the torque sensor being higher than a limit value. The travelling frame is provided with a front limit proximity switch adapted to detect the travelling frame travelling to a front limit of the wood chip pile area, and a rear limit proximity switch adapted to detect the travelling frame travelling to a rear limit of the wood chip pile area, the front limit proximity switch, the rear limit proximity switch and the travelling motor are all electrically connected to the central processing unit, the central processing unit being adapted to control the travelling motor to position the feed motion direction to the rear according to the front limit proximity switch having a detection, the central processing unit being adapted to control the travelling motor to position the feed motion direction to the front according to the rear limit proximity switch having a detection. Both ends of the wood chip pile area are provided with surrounding walls, both sides of the wood chip pile area are provided with a plurality of blocking pieces arranged along the axial direction, the blocking pieces are spliced between adjacent blocking pieces, and both sides of the wood chip pile area are provided with a limit ground slot and a limit sky window, the limit ground slot is adapted to accommodate the lower end of the corresponding plurality of blocking pieces, the limit sky window is adapted to the blocking pieces moving up and down, one end of the discharging screw close to the conveying belt is rotatably connected to a top frame, the other end is rotatably connected to a top block, the top frame and the top block are both triangular or trapezoidal, the bottom edge is adapted to be accommodated in the limit ground slot, the two waists are adapted to the blocking pieces climbing or sliding, and the abdominal hole of the top frame is adapted to discharge wood chips.

2. A chip yard according to claim 1, characterized in that The limit ground slot accommodates a roller, the top frame and the top block are both provided with a plurality of first recesses on the bottom edge, the top frame and the top block are both adapted to move along the limit ground slot while riding the roller.

3. The chip bin according to claim 1, characterized in that The inner side of the top block is connected to a shutter, the shutter is adapted to isolate the lower end of the blocking piece that has been lifted by the top block from wood chips, and the shutter is adapted to isolate the section of the limit ground slot from which the blocking piece has been pulled out from wood chips.

4. The chip bin according to claim 1, characterized in that The top frame is trapezoidal, the top edge of the top frame is provided with a second recess, the second recess is provided with a follow-up screw extending along the top edge, the follow-up screw is rotatably connected to the top frame, and the blocking piece on any waist of the top frame is adapted to transition to the other waist through the follow-up screw.

5. A chip yard according to any one of claims 1 to 4, characterized in that ​ 6. A chip yard according to any one of claims 1 to 4, characterized in that ​ 7. The chip bin according to claim 5, characterized in that ​ 8. The chip bin according to claim 5, characterized in that ​ 9. The chip bin according to claim 5, characterized in that The discharge side of the stacking area is provided with a notch, and is connected with a limiting and guiding strip, the discharge side of the stacking area and the limiting and guiding strip jointly limit the notch as a corresponding limiting groove, and the limiting and guiding strip is provided with a sloping eave suitable for guiding wood chips to the conveying belt.

10. The chip bin according to claim 5, characterized in that A plurality of feeding belts are distributed along the axial direction above the stacking area.

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