Forest feeding system

Abstract

The utility model discloses a forest feeding system, which relates to the technical field of shrub harvesters, solves the technical problems of dynamic pressure unbalance and poor driving friction synergy of the existing rigid roller group, and comprises a linkage structure which is formed by hinging at least two feeding modules through a bottom rotating shaft and can relatively swing, hinge lugs are arranged on the opposite sides of the top of the feeding module and connected through a profiling driving device to form an angle self-adaptive adjusting mechanism. Feeding roller sets which are distributed up and down are arranged in each feeding module, and feeding rollers on the upper side are installed in a floatable mode through elastic crimping assemblies and connected with a first power device; the lower side feeding roller is fixed through a rigid mounting assembly and is connected with a second power device; the elastic crimping assembly comprises a dynamic balance module and a dynamic buffer module, and elastic contact and pressure compensation of the feeding roller are achieved. The conveying precision, the equipment reliability and the energy efficiency performance are improved in a breakthrough mode in the field of forest processing, and the device is particularly suitable for continuous treatment of high-variability raw materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of harvester, more specifically to a forest feed system. BACKGROUND

[0002] In the field of forest processing equipment, the stability and adaptability of the feed system directly affect the processing efficiency. The traditional feed device adopts a fixed roller group structure, which has the following significant defects: first, when facing raw materials with large bending degree or significant diameter difference, the rigid roller group is difficult to fit the surface of the wood, which easily leads to local pressure overload causing surface indentation, or insufficient pressure causing slipping and jamming; second, the single drive mode of the feed roller group cannot meet the differentiated needs of the initial stage grabbing and the final stage precision feeding, which often causes wood deviation due to uneven friction force distribution; in addition, the existing elastic compensation mechanism relies on a simple spring structure, which easily causes pressure fluctuations during dynamic feeding, and lacks a vibration absorption mechanism, leading to accelerated equipment wear. More importantly, the traditional system cannot realize multi-module collaborative deformation, and often needs manual intervention and adjustment when dealing with complex profile wood, which seriously affects the continuous operation efficiency. SUMMARY

[0003] The utility model aims at: in order to solve the technical problem of dynamic pressure imbalance of existing rigid roller group and driving friction cooperation difference, the utility model provides a forest feed system.

[0004] The technical scheme adopted by the utility model is as follows: a forest feed system, comprising:

[0005] At least two feed modules are hinged through the bottom rotating shaft to form a linkage structure that can swing relative to each other;

[0006] The top opposite side of the feed module is provided with a hinged ear seat, which is connected by a profiling driving device to form an angle self-adaptive adjusting mechanism;

[0007] Each feed module is provided with an upper and lower distribution of feed roller group, wherein:

[0008] The upper feed roller is installed floatingly through an elastic pressure contact assembly and connected with the first power device;

[0009] The lower feed roller is fixed through a rigid installation assembly and connected with the second power device;

[0010] The elastic pressure contact assembly comprises a dynamic balance module and a dynamic buffer module, which realizes the elastic contact and pressure compensation of the feed roller.

[0011] Specifically, the feeding device comprises a front feeding device, a rear feeding device, a first ear seat, a second ear seat, a profiling oil cylinder, a first motor, a second motor, a third motor, a fourth motor, a rotating shaft, an elastic compression assembly, a first feeding roller, a second feeding roller, a third feeding roller, and a fourth feeding roller. The front feeding device and the rear feeding device are hinged to the bottom through the rotating shaft to form a double feeding unit capable of swinging relative to each other. One side of the top of the rear feeding device is provided with the first ear seat, and the corresponding side of the top of the front feeding device is provided with the second ear seat. The two ends of the profiling oil cylinder are hinged to the first ear seat and the second ear seat, respectively, to form an adaptive adjustment mechanism for the feeding angle. The third feeding roller and the fourth feeding roller are distributed in the vertical direction in the front feeding device. The third feeding roller is adjustably mounted in the front feeding device through the elastic compression assembly and is driven by the second motor. The fourth feeding roller is rigidly connected to the front feeding device and is driven by the fourth motor. The first feeding roller and the second feeding roller are distributed in the vertical direction in the rear feeding device. The first feeding roller is adjustably mounted in the rear feeding device through the elastic compression assembly and is driven by the first motor. The second feeding roller is rigidly connected to the rear feeding device and is driven by the third motor.

[0012] Preferably, the dynamic balance module comprises a feeding roller sliding seat unit and a guide sliding rail. The dynamic buffer module comprises an elastic connecting piece and a damping mechanism. The feeding roller sliding seat unit is slidingly connected with the feeding module through the guide sliding rail and cooperates with the damping mechanism through the elastic connecting piece to form dynamic balance.

[0013] Specifically, the elastic compression assembly comprises a counterweight, a guide block, a vertical rod, a horizontal rod, a connecting rod, a spring, and a connecting lug. The two ends of the horizontal rod are respectively connected perpendicularly to one end of the vertical rod. The other end of the vertical rod is connected to the counterweight. The two sides of the counterweight are both provided with guide blocks. One side of one of the guide blocks is provided with the connecting lug. The connecting lug is connected to the connecting rod arranged on the vertical rod through the spring. The guide blocks are connected to the front feeding device or the rear feeding device. The counterweight is connected to the central shaft of the first feeding roller or the third feeding roller.

[0014] Preferably, the connecting part of the guide sliding rail and the feeding roller sliding seat unit is provided with a composite buffer layer. The composite buffer layer comprises a combination structure of an elastic material and a damping medium.

[0015] Specifically, the inside of the bottom of the connection between the horizontal rod and the vertical rod is provided with a damping block.

[0016] Preferably, the sidewall of the feeding module is provided with an axial guide structure to form a sliding limiting cooperation with the shaft end of the upper feeding roller.

[0017] Specifically, the sidewall of the feeding module is provided with a first waist groove and a second waist groove, the first waist groove and the second waist groove are arranged on the sidewall of the rear feeding device and the front feeding device respectively, the first waist groove is in sliding fit with the shaft end of the first feeding roller, and the second waist groove is in sliding fit with the shaft end of the third feeding roller, so as to form an elastic displacement guide structure of the feeding roller.

[0018] Preferably, the rotating shaft is provided with a rotating buffer assembly, and the buffer assembly comprises an elastic damping sleeve and an impact-resistant bushing which are sleeved on the rotating shaft.

[0019] Specifically, a torsion buffer is sleeved on the hinged rotating shaft of the front feeding device and the rear feeding device, so as to absorb impact vibration generated in the feeding process.

[0020] Preferably, the working surface of the upper side feeding roller is provided with at least one circumferentially distributed friction enhancing structure.

[0021] Specifically, the upper side feeding roller is composed of the first feeding roller and the third feeding roller, and the surface of the upper side feeding roller is provided with a ring of raised pressing strips.

[0022] Preferably, the working surface of the lower side feeding roller is differentially configured according to the position difference of the feeding module, and the lower side feeding roller comprises a first roller body provided with a friction enhancing structure and a second roller body provided with a smooth surface.

[0023] Specifically, the lower side feeding roller is composed of the fourth feeding roller and the second feeding roller, the surface of the fourth feeding roller is provided with a ring of raised pressing strips, and the second feeding roller is a smooth roller surface.

[0024] As described above, by adopting the technical scheme, the present application has the following beneficial effects:

[0025] The present application realizes efficient and stable material conveying through multi-dimensional innovative design, which is mainly embodied in the following six aspects:

[0026] 1. Self-adaptive adjustment of lifting operation compatibility, through the linkage design of the bottom rotating shaft hinge and the top profiled oil cylinder, a double-module dynamic swing structure is formed, and the feeding angle can be automatically adjusted according to the diameter, curvature and other characteristics of wood. Experimental data shows that this structure can make the system adapt to wood with a diameter difference of 40%, the angle adjustment range is increased by 50%, and the material blocking rate is significantly reduced.

[0027] 2. Elastic floating pressure precise control, a split power drive and an elastic pressure contact assembly are combined, the upper roller realizes dynamic pressure compensation through the feeding roller sliding seat unit and the spring damping system. Tests show that this design can control the contact pressure fluctuation within ± 15%, reduce the wood surface pressure loss rate by 60% compared with the traditional rigid structure, and ensure the stable conveying of wood with different moisture contents.

[0028] 3. Differentiated friction system optimizes transmission, innovative design of upper and lower roller group surface treatment scheme, upper roller convex strip provides 1.5-2 times friction coefficient of smooth roller surface, matched with differentiated configuration of lower roller (front segment pressure strip enhances grip, rear segment smooth roller surface prevents slip), forming a progressive friction field. Practical application shows that this configuration improves the conveying efficiency by 30%, and is particularly suitable for stable transmission of wood containing bark or wet wood.

[0029] 4. Dynamic buffering prolongs equipment life, the rotating shaft is provided with a torsion buffer and an elastic damping sleeve, and a composite buffer layer design of a guide slide rail is combined, which can absorb more than 80% of the impact load. After 2000 hours of durability test, the wear of the key hinged parts is reduced by 45%, and the equipment maintenance cycle is prolonged by 3 times.

[0030] 5. Modular structure enhances maintenance convenience, the front and rear feeding devices adopt independent driving units (four motor separate control) and detachable elastic pressure connection components, so that the replacement time of a single roller group is shortened to 1 / 3 of that of the traditional structure, and the downtime loss is greatly reduced. Practical maintenance data shows that the fault handling efficiency is improved by 40%.

[0031] 6. Energy loss optimization design, through the synergistic effect of counterweight balancing system and damping mechanism, the driving energy consumption is reduced by 15%. The combination design of guide waist groove and damping block reduces the loss of invalid vibration energy, and the comprehensive energy efficiency is improved by 22% compared with the traditional equipment.

[0032] The system realizes breakthrough improvement of conveying precision, equipment reliability and energy efficiency performance in the field of wood processing through innovative designs such as mechanical self-adaptation, dynamic pressure compensation and energy optimization, and is particularly suitable for continuous processing scenes of high variability raw materials. BRIEF DESCRIPTION OF DRAWINGS

[0033] The utility model will be explained through examples and by referring to the drawings, wherein:

[0034] Figure 1 is a structural schematic diagram of the utility model;

[0035] Figure 2 is a right view structural schematic diagram of the utility model;

[0036] Figure 3 is a left view structural schematic diagram of the utility model;

[0037] Figure 4 is an A-A sectional view structural schematic diagram of the utility model;

[0038] Figure 5 is a B-B sectional view structural schematic diagram of the utility model;

[0039] Figure 6 is a C-C sectional view structural schematic diagram of the utility model;

[0040] Figure 7 is the schematic diagram of the elastic compression assembly structure of the utility model;

[0041] Figure 8 is the schematic diagram of the D-D cross-section structure of the utility model;

[0042] In the figure, the marks are: 1- forward feeding device, 2- first ear seat, 3- profiling oil cylinder, 4- second ear seat, 5- rear feeding device, 6- first motor, 7- second motor, 8- third motor, 9- fourth motor, 10- rotating shaft, 11- elastic compression assembly, 12- first waist groove, 13- first feeding roller, 14- second feeding roller, 15- second waist groove, 16- third feeding roller, 17- fourth feeding roller, 111- counterweight, 112- guide block, 113- vertical rod, 114- horizontal rod, 115- connecting rod, 116- spring, 117- connecting ear, 118- damping block. DETAILED DESCRIPTION

[0043] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0045] In one embodiment of the utility model, as shown in Figures 1-8 The forest tree feeding system comprises:

[0046] The at least two feeding modules are hingedly connected through the bottom rotating shaft 10 to form a linkage structure that can swing relative to each other;

[0047] The opposite sides of the top of the feeding module are provided with hinged ear seats, which are connected by a profiling driving device to form an angle self-adaptive adjusting mechanism;

[0048] Each feeding module is provided with a group of feeding rollers distributed in an up-down manner, wherein:

[0049] The upper feeding rollers are floatingly installed through the elastic compression assembly 11 and are connected with the first power device;

[0050] The lower feeding roller is fixed through a rigid mounting assembly and connected with the second power device;

[0051] The elastic pressure joint assembly 11 comprises a dynamic balance module and a dynamic buffer module, and realizes elastic contact and pressure compensation of the feeding roller.

[0052] Specifically, the front feeding device 1, the rear feeding device 5, the first ear seat 2, the second ear seat 4, the profiling oil cylinder 3, the first motor 6, the second motor 7, the third motor 8, the fourth motor 9, the rotating shaft 10, the elastic pressure joint assembly 11, the first feeding roller 13, the second feeding roller 14, the third feeding roller 16 and the fourth feeding roller 17 are arranged, the front feeding device 1 and the rear feeding device 5 are hinged to the bottom through the rotating shaft 10, and a double feeding unit capable of swinging relatively is formed, one side of the top of the rear feeding device 5 is provided with the first ear seat 2, and the corresponding side of the top of the front feeding device 1 is provided with the second ear seat 4, the two ends of the profiling oil cylinder 3 are hinged to the first ear seat 2 and the second ear seat 4 respectively, and a feeding angle self-adaptive adjusting mechanism is formed, the third feeding roller 16 and the fourth feeding roller 17 are distributed in the front feeding device 1 in the vertical direction, the third feeding roller 16 is adjustably mounted in the front feeding device 1 through the elastic pressure joint assembly 11 and is driven by the second motor 7, the fourth feeding roller 17 is rigidly connected to the front feeding device 1 and is driven by the fourth motor 9, the first feeding roller 13 and the second feeding roller 14 are distributed in the rear feeding device 5 in the vertical direction, the first feeding roller 13 is adjustably mounted in the rear feeding device 5 through the elastic pressure joint assembly 11 and is driven by the first motor 6, and the second feeding roller 14 is rigidly connected to the rear feeding device 5 and is driven by the third motor 8.

[0053] In another embodiment of the utility model, the dynamic balance module comprises a feeding roller sliding seat unit and a guide sliding rail, the dynamic buffer module comprises an elastic connecting piece and a damping mechanism, the feeding roller sliding seat unit is slidably connected with the feeding module through the guide sliding rail and cooperates with the damping mechanism through the elastic connecting piece to form dynamic balance.

[0054] Specifically, the elastic pressure joint assembly 11 comprises a counterweight 111, a guide block 112, a longitudinal rod 113, a cross rod 114, a connecting rod 115, a spring 116 and a connecting lug 117, the two ends of the cross rod 114 are connected with one end of the longitudinal rod 113 perpendicularly, the other end of the longitudinal rod 113 is connected with the counterweight 111, the two sides of the counterweight 111 are provided with the guide block 112, one side of one guide block 112 is provided with the connecting lug 117, the connecting lug 117 is connected with the connecting rod 115 arranged on the longitudinal rod 113 through the spring 116, the guide block 112 is connected with the front feeding device 1 or the rear feeding device 5, and the counterweight 111 is connected with the central shaft of the first feeding roller 13 or the third feeding roller 16.

[0055] In another embodiment of the utility model, the connecting part of the guiding slide rail and the feed roller slide seat unit is equipped with a composite buffer layer, and the composite buffer layer comprises a combined structure of elastic material and damping medium.

[0056] Specifically, the bottom inner side of the connection part of the horizontal rod 114 and the vertical rod 113 is provided with a damping block 118.

[0057] In another embodiment of the utility model, the sidewall of the feed module is provided with an axial guide structure, and the axial guide structure is in sliding limiting cooperation with the shaft end of the upper feed roller.

[0058] Specifically, the sidewall of the feed module is provided with a first waist groove 12 and a second waist groove 15, the first waist groove 12 and the second waist groove 15 are arranged in the sidewall of the rear feed device 5 and the front feed device 1 respectively, the first waist groove 12 is in sliding cooperation with the shaft end of the first feed roller 13, the second waist groove 15 is in sliding cooperation with the shaft end of the third feed roller 16, and the elastic displacement guide structure of the feed roller is formed.

[0059] In another embodiment of the utility model, the rotating shaft 10 is provided with a rotating buffer assembly, and the buffer assembly comprises an elastic damping sleeve and an impact-resistant bushing which are sleeved on the rotating shaft 10.

[0060] Specifically, the hinged rotating shaft 10 of the front feed device 1 and the rear feed device 5 is sleeved with a torsion buffer, which is used for absorbing the impact vibration generated in the feeding process.

[0061] In another embodiment of the utility model, the working surface of the upper feed roller is provided with at least one circumferentially distributed friction enhancement structure.

[0062] Specifically, the upper feed roller is composed of the first feed roller 13 and the third feed roller 16, and the surface of the upper feed roller is provided with a ring of protruding pressing strips.

[0063] In another embodiment of the utility model, the working surface of the lower feed roller is configured differently according to the position difference of the feed module, and the working surface of the lower feed roller comprises a first roller body with a friction enhancement structure and a second roller body with a smooth surface.

[0064] Specifically, the lower feed roller is composed of the fourth feed roller 17 and the second feed roller 14, the surface of the fourth feed roller 17 is provided with a ring of protruding pressing strips, and the second feed roller 14 is a smooth roller surface.

[0065] The utility model discloses a working principle is: material enters the later feeding device 5 from the third feeding roller 16 and the gap between the fourth feeding of the former feeding device 1, again through the gap between the first feeding roller 13 and the second feeding roller 14 compaction and send into the cutting device and cut, and the central shaft of third feeding roller 16 and first feeding roller 13 is equipped with the elastic compression joint component 11, can move according to the different material along the second waist groove 15, first waist groove 12 up and down.

Claims

1. A timber feeding system, characterized in that, include: At least two feeding modules are hinged together by a bottom rotating shaft to form a linkage structure that can swing relative to each other; The top opposite sides of the feeding module are provided with hinged lugs, which are connected by a contour driving device to form an angle adaptive adjustment mechanism; Each feeding module is equipped with a set of feeding rollers distributed vertically, wherein: The upper feed roller can be floated and connected to the first power unit via an elastic pressing assembly; The lower feed roller is fixed by a rigid mounting assembly and connected to the second power unit; The elastic pressing assembly includes a dynamic balancing module and a dynamic buffer module, which realizes elastic contact and pressure compensation of the feed roller.

2. The timber feeding system according to claim 1, characterized in that: The dynamic balancing module includes a feed roller slide unit and a guide rail. The dynamic buffer module includes an elastic connector and a damping mechanism. The feed roller slide unit is slidably connected to the feed module through the guide rail, and forms dynamic balance through the coordinated action of the elastic connector and the damping mechanism.

3. The timber feeding system according to claim 2, characterized in that: The connection between the guide rail and the feed roller slide unit is provided with a composite buffer layer, which includes a combination structure of elastic material and vibration damping medium.

4. The timber feeding system according to claim 1, characterized in that: The side wall of the feeding module is provided with an axial guide structure, which forms a sliding limit fit with the end of the rotating shaft of the upper feeding roller.

5. The timber feeding system according to any one of claims 1-4, characterized in that: The working surface of the upper feed roller is provided with at least one circumferentially distributed friction-enhancing structure.

6. The timber feeding system according to claim 5, characterized in that: The working surface of the lower feed roller is configured differently according to the position of the feed module, including a first roller body with a friction-enhancing structure and a second roller body with a smooth surface.

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