Hydraulic scissor log splitter with measurable length and method of use

Abstract

The application discloses a hydraulic shearing type log cutting machine with measurable length and a use method. The shearing type log cutting machine comprises a mounting frame, a hydraulic shearing part arranged at the rear end of the mounting frame, a front clamping part, a feeding roller part and a rear clamping part arranged in sequence from the bottom of the front end of the mounting frame to the bottom of the rear end, an auxiliary wheel part arranged in the clamping space of the rear clamping part and close to the bottom of the rear end of the mounting frame, first support shafts arranged at the lower ends of the mounting frame and extending from the rear end to the front end, the rear clamping part rotatably arranged at the rear ends of the first support shafts of the mounting frame, the feeding roller part rotatably arranged at the front ends of the first support shafts of the mounting frame, a measuring support frame fixed to the inner wall of the top end of the mounting frame and arranged in front of the auxiliary wheel part, and a measuring wheel assembly arranged at the lower end of the measuring support frame and extending to the direction of the auxiliary wheel part.

Description

Technical Field

[0001] This invention belongs to the field of logging equipment technology, and particularly relates to a hydraulic shear logging machine with measurable length and its usage method. Background Technology

[0002] Traditional logging operations have long relied on chainsaws and handheld cutting equipment, resulting in low efficiency, high labor costs, and significant safety hazards. Mechanized logging equipment, on the other hand, can replace manual labor in these high-risk tasks, significantly improving logging efficiency and reducing operational risks. This aligns with the current development trends of forestry towards safety, mechanization, efficiency, and precision, effectively meeting the practical operational needs of forestry harvesting, municipal greening, and ecological restoration in socio-economic development. Currently, the mainstream logging machinery is mainly divided into three types: chain-driven logging machines, rotary cutting logging machines, and conventional hydraulic shear logging machines. The core structure of a chain-driven logging machine consists of a high-speed rotating transmission chain and cutting teeth. Powered by mechanical force, the chain cuts tree trunks, making it suitable for felling large-diameter trees and the mainstream equipment in mechanized logging. Rotary cutting logging machines primarily use a high-speed rotating disc saw blade structure, relying on the high-speed rotation of the saw blade to cut tree trunks and branches. They are mostly used for clearing small shrubs and thin branches. However, chain-driven and disc saw blade machines are prone to chain derailment, saw blade breakage, and flying debris during high-speed operation, posing significant safety hazards. The chain, guide plates, and saw blades are also prone to wear and require frequent maintenance and replacement. Conventional hydraulic shear logging machines feature a simple hydraulic drive structure and scissor-type blades. The extension and retraction of hydraulic cylinders drive the upper and lower blades to close and cut trees. While simple in structure and highly safe, they suffer from uneven force distribution, large hydraulic pressure fluctuations under heavy loads, and unstable blade opening and closing speeds, resulting in low efficiency and poor stability. Furthermore, they only have single felling and cutting functions and cannot meet the needs of directional felling or segmented operations. Summary of the Invention

[0003] The purpose of this invention is to provide a hydraulic shear logging machine with measurable length and its method of use. This invention enables the trolley body to move smoothly on the guide rail of the rock drilling rig's propulsion beam, preventing deviation when the trolley body bounces, reducing frictional resistance between the trolley body and the guide rail, and reducing wear on the roller bearings. To achieve the above objectives, the following technical effects are adopted: According to one aspect of the present invention, a hydraulic shearing logging machine capable of measuring length is provided. The shearing logging machine includes a main frame, a hydraulic shearing section disposed at the rear end of the main frame, and a front clamping section, a feeding roller section, and a rear clamping section arranged sequentially from the bottom of the front end to the bottom of the rear end of the main frame. An auxiliary wheel section is disposed within the clamping space of the rear clamping section and near the bottom of the rear end of the main frame. First support shafts extending from the rear end to the front end are fixedly disposed on both sides of the lower end of the main frame. The rear clamping section is rotatably disposed on the rear end of the first support shafts on both sides of the main frame. A feeding roller is rotatably mounted on the front end of the first support shaft on the side. A measuring support frame is fixed to the inner wall of the top of the main mounting frame in front of the auxiliary wheel. A measuring wheel assembly extending towards the auxiliary wheel is mounted at the lower end of the measuring support frame. A rear support plate extending from the top to the bottom is mounted on the rear end section of the main mounting frame. The hydraulic shear is fixed to the rear end of the main mounting frame via the rear support plate. The rear ends of the two first support shafts are fixed to the bottom sides of the rear end of the main mounting frame via the rear support plate. The front ends of the two first support shafts are fixed to the bottom sides of the center of the main mounting frame via the first intermediate support plates.

[0004] In a further preferred embodiment of the above scheme, a rear support plate extending from the top to the bottom is provided on the rear end section of the main frame. The hydraulic shear section is fixed to the rear end of the main frame via the rear support plate. The rear ends of the two first support shafts are fixed to the bottom sides of the rear end of the main frame via the rear support plate, and the front ends of the two first support shafts are fixed to the bottom sides of the center of the main frame via first intermediate support plates. The feeding roller section includes a left feeding roller assembly and a right feeding roller assembly respectively provided on both sides of the lower end of the main frame, a feeding connecting rod, and a feeding roller cylinder. The left feeding roller assembly... The left mounting base of the feed wheel assembly and the right mounting base of the right feed wheel assembly are rotatably mounted on the corresponding first support shafts on the left and right sides of the main mounting frame, respectively. The fixed end of the feed wheel cylinder and one end of the feed connecting rod are rotatably connected to the right mounting base through the right pin. The end of the output shaft of the feed wheel cylinder is rotatably connected to the top of the left mounting base through the left pin. The other end of the feed connecting rod is rotatably connected to the lower end of the left mounting base. Second intermediate support plates for supporting the first support shaft are respectively provided on the side walls of the lower end of the main mounting frame between the first intermediate support plate and the auxiliary wheel part.

[0005] In a further preferred embodiment of the above scheme, the shearing logging machine includes a hanger section located above the top of the main mounting frame. The lower end of the hanger section is rotatably connected to both sides of the middle section of the main mounting frame. Hanger cylinders, which are driven by the main mounting frame, are respectively located on the inner sides of both sides of the hanger section. A connecting arm is located at the top of the hanger section. The hydraulic shear section includes a hydraulic shear housing and a hydraulic shear body vertically matched within the hydraulic shear housing. The front sidewall of the hydraulic shear housing is fixed to the rear support plate via a shear support seat. The hydraulic shear body includes a left shear arm, a right shear arm, a left shear cylinder, a right shear cylinder, a left blade, and a right blade. The left and right shear cylinders are symmetrically arranged inside the center of the upper half of the hydraulic shear housing, and the left and right shear arms are symmetrically arranged inside the center of the lower half of the hydraulic shear housing. The upper ends of the left and right shear cylinders are rotatably connected to the hydraulic shears via upper shear pins. On the inner sides of the upper end of the shear housing, the rotating ends of the left and right shear arms are close to each other. The rotating end of the left shear arm is rotatably connected to the middle of the hydraulic shear housing via a left shear pin extending in the front-back direction, and the right shear arm is rotatably connected to the middle of the hydraulic shear housing via a right shear pin extending in the front-back direction. The left and right shear pins are arranged parallel to each other at the same horizontal level, and their ends are fixed to the middle side wall of the hydraulic shear housing by pin support seats. The middle outer wall of the left shear arm is rotatably connected to the output shaft of the left shear cylinder via a first lower shear pin, and the middle outer wall of the right shear arm is rotatably connected to the output shaft of the right shear cylinder via a second lower shear pin. The left and right blades are symmetrically arranged on opposite sides of the left and right shear arms. A left blade groove with an opening towards the right shear arm is provided on the outer wall of the left shear arm, and a right blade groove with an opening towards the left shear arm is provided on the outer wall of the right shear arm.

[0006] In a further preferred embodiment of the above scheme, the rear clamping portion includes a left rear clamping jaw, a right rear clamping jaw, a left rear clamping cylinder, and a right rear clamping cylinder; the root of the left rear clamping jaw is rotatably sleeved on the first support shaft on the left side of the mounting main frame via a left rear sleeve, and the root of the right rear clamping jaw is rotatably sleeved on the first support shaft on the right side of the mounting main frame via a right rear sleeve. A rear cylinder fixing seat is provided at the top of the rear end of the mounting main frame on the front side of the rear support plate, and the fixing end of the left rear clamping cylinder is connected to the first support shaft on the right side of the mounting main frame via a first left rear clamping cylinder. The rear cylinder pin is rotatably connected to the top left side of the rear cylinder mounting base. The end of the output shaft of the left rear clamping cylinder is rotatably connected to the top of the left rear cylinder support via the second left rear cylinder pin. A right rear cylinder support is provided on the rear end of the right rear sleeve. The fixed end of the right rear clamping cylinder is rotatably connected to the top right side of the rear cylinder mounting base via the first right rear cylinder pin. The end of the output shaft of the right rear clamping cylinder is rotatably connected to the top of the right rear cylinder support via the second right rear cylinder pin.

[0007] In a further preferred embodiment of the above scheme, a front support plate extending from the top to the bottom is provided on the front section of the main frame, and a second support shaft is provided between the first intermediate support plate and the front support plate (14) on both sides of the main frame, and the front clamping part is provided on the second support shaft on both sides of the main frame.

[0008] In a further preferred embodiment of the above scheme, the front clamping portion includes a left front clamping jaw, a right front clamping jaw, a left front clamping cylinder, and a right front clamping cylinder; the root of the left front clamping jaw is rotatably sleeved on the second support shaft on the left side of the front end of the mounting main frame via a left front sleeve, and the root of the right front clamping jaw is rotatably sleeved on the second support shaft on the right side of the front end of the mounting main frame via a right front sleeve; a left front cylinder support seat integrally connected to the root of the left front clamping jaw is provided on the side wall of the front end of the left front sleeve, and the end of the output shaft of the left front clamping cylinder... The first left front cylinder is rotatably connected to the top of the left front cylinder support seat via the first left front cylinder pin. The fixed end of the left front clamping cylinder is rotatably sleeved on the second support shaft on the right side of the front end of the mounting frame. A right front cylinder support seat is provided on the side wall of the rear end of the right front sleeve, which is integrated with the root of the right front clamping claw. The end of the output shaft of the right front clamping cylinder is rotatably connected to the top of the right front cylinder support seat via the first right front cylinder pin. The fixed end of the right front clamping cylinder is rotatably sleeved on the second support shaft on the left side of the front end of the mounting frame.

[0009] In a further preferred embodiment of the above scheme, the measuring wheel assembly includes an encoder sensor, a measuring drive wheel, a telescopic adjustment assembly, and a measuring mounting assembly. The measuring mounting assembly includes a measuring wheel axle and a fixed support seat mounted on the left and right side walls of the measuring support frame. The measuring wheel axle is fixedly mounted on the fixed support seat between the left and right side walls of the measuring support frame. A measuring support block is rotatably sleeved on the measuring wheel axle. An encoder support rod is provided on the left side wall of the measuring support block, extending downwards from the auxiliary wheel portion. The encoder sensor is horizontally fixed at the end of the encoder support rod. The telescopic adjustment assembly is rotatably mounted on the right side wall of the measuring support block. The output shaft of the encoder sensor extends along one side of the telescopic adjustment assembly, and the measuring drive wheel is rotatably mounted on the output shaft of the encoder sensor. The lower end of the telescopic adjustment assembly is rotatably connected to the right side wall of the measuring support block, and the upper end of the telescopic adjustment assembly extends upwards from the auxiliary wheel portion and is fixed to the top inner wall of the mounting frame.

[0010] In a further preferred embodiment of the above scheme, the telescopic adjustment assembly includes a telescopic adjustment component and a buffer adjustment spring sleeved on the outer wall of the telescopic adjustment component. The upper end of the buffer adjustment spring is fixed to the upper end of the buffer adjustment spring. A lower limit support ring is provided near the lower end of the outer wall of the telescopic adjustment component. The lower end of the buffer adjustment spring is close to the lower limit support ring. A U-shaped support seat is provided on the right side wall of the measuring support block. The lower end of the telescopic adjustment component is rotatably connected to the U-shaped support seat through an adjustment support pin. The upper end of the telescopic adjustment component extends along the upper side of the auxiliary wheel portion and is fixed on the top inner wall of the mounting main frame (10).

[0011] In a further preferred embodiment of the above scheme, the telescopic adjustment component includes a sliding support cylinder and a sliding adjustment rod that is guided and slidably disposed within the sliding support cylinder. The upper end of the sliding support cylinder is fixed to the inner wall of the top of the mounting main frame via a fixed connecting block. An upper limit support ring is disposed near the upper end of the sliding support cylinder. The lower end of the sliding adjustment rod is rotatably connected to a U-shaped support seat via an adjusting support pin. The upper end of the sliding adjustment rod is slidably disposed within the sliding support cylinder along the lower end of the sliding support cylinder. The upper limit support ring is disposed near the outer wall of the lower end of the sliding adjustment rod. The lower end of the buffer adjustment spring approaches or contacts the lower limit support ring, and the upper end of the buffer adjustment spring is connected to the upper limit support ring.

[0012] According to another aspect of the present invention, the present invention provides a method of using a hydraulic shearing logging machine capable of measuring length, the method comprising the following steps: The main frame of the shearing logger is installed and connected to the telescopic boom of the excavator, and the shearing logger is hoisted to the location of the tree to be felled. The main frame is adjusted to be parallel to the tree. The telescopic boom of the excavator drives the main frame to move to the location of the tree. The hydraulic shearing part is clamped at the location of the tree to be cut, and the tree is held tightly by the front clamping part and the rear clamping part. Next, the hydraulic shears cut the tree, lay the cut tree down to a horizontal position, and press the upper wall of the tree into contact with the auxiliary wheel and measuring wheel assembly. Under the push of the feeding roller and the guidance of the auxiliary wheel, the tree is fed and moved towards the hydraulic shears at the rear of the main frame. During the movement of the wood, the measuring drive wheel rotates continuously to measure the length of the tree. When the measuring drive wheel measures the length of the tree to be moved, the hydraulic shears perform the segmented cutting operation.

[0013] In summary, the present invention adopts the above technical solution and has the following technical effects: This invention uses dual hydraulic cylinders to symmetrically drive a pair of blades, achieving shearing force. The opening and closing stroke of the blades is automatically adjusted by the extension and retraction length of the hydraulic cylinders, ensuring uniform force and smooth operation during the shearing process. It also integrates a pair of feeding wheels and two pairs of clamping blades, enabling functions such as clamping, feeding, segmented measurement, and cutting of timber, making it suitable for logging operations under complex conditions. Attached Figure Description

[0014] Figure 1 This is an exploded structural diagram of a hydraulic shear logging machine with measurable length according to the present invention; Figure 2 This is a schematic diagram of a logging operation using a hydraulic shear logging machine with measurable length according to the present invention; Figure 3 This is a schematic diagram of the overall structure of a hydraulic shear logging machine with measurable length according to the present invention; Figure 4 This is a schematic diagram of the overall installation structure of the main mounting frame of the present invention; Figure 5 This is a schematic diagram of the overall structure of the front clamping part of the present invention; Figure 6 This is an exploded structural diagram of the front clamping portion of the present invention; Figure 7 This is a schematic diagram of the feeding roller portion of the present invention; Figure 8 This is a schematic diagram of the structure of the rear clamping part of the present invention; Figure 9 This is a schematic diagram of the hydraulic shear part of the present invention; Figure 10 This is a schematic diagram of the structure of the left shear arm and the right shear arm of the present invention; Figure 11 This is a schematic diagram of the overall structure of the hanger portion of the present invention; Figure 12 This is an exploded structural diagram of the hanger portion of the present invention; Figure 13 This is a schematic diagram of the overall structure of the auxiliary wheel section; Figure 14 This is a schematic diagram of the installation structure of the measuring wheel assembly; Figure 15 This is a schematic diagram of the measuring wheel assembly; Figure 16 This is a bottom view of the measuring wheel assembly. Figure 17 This is a cross-sectional structural schematic diagram of the telescopic adjustment component of the present invention; In the attached diagram, the components are: front clamping part 1, feeding roller part 2, rear clamping part 3, hydraulic shear part 4, auxiliary wheel part 5, hanger part 6, measuring wheel assembly 7, measuring support frame 8, mounting main frame 10, first support shaft 11, rear support plate 12, first intermediate support plate 13, second intermediate support plate 13a, front support plate 14, second support shaft 15, and shearing support seat 16. Left front gripper 1-1, right front gripper 1-2, left front gripper cylinder 1-3, right front gripper cylinder 1-4, left front cylinder pin 1-5, first right front cylinder pin 1-6, left front sleeve 1-10, left front cylinder support 1-10a, right front sleeve 1-11, right front cylinder support 1-11a, left feed wheel assembly 2-1, left feed wheel 2-1a, left drive motor 2-1b, right feed wheel assembly 2-2, right feed wheel 2-2a, right drive motor 2-2b, feeding connecting rod 2-3, feed wheel cylinder 2-4, left pin 2-6, right pin 2-7, left mounting seat 2-10, right mounting seat 2-20; Left rear gripper 3-1, right rear gripper 3-2, left rear gripper cylinder 3-3, right rear gripper cylinder 3-4, first left rear cylinder pin 3-5, first right rear cylinder pin 3-6, left rear sleeve 3-10, left rear cylinder support 3-10a, second left rear cylinder pin 3-10b, right rear sleeve 3-11, right rear cylinder support 3-11a, second right rear cylinder pin 3-11b, rear cylinder fixing seat 3-12; Hydraulic shear housing 4-1, hydraulic shear body 4-0, left shearing arm 4-10, left shearing pin 4-10a, left blade groove 4-10b, right shearing arm 4-11, right shearing pin 4-11a, right blade groove 4-11b, left shearing cylinder 4-12, right shearing cylinder 4-13, left blade 4-14, right blade 4-15, upper shearing pin 4-16, pin support seat 4-17, first lower shearing pin 4-18, second lower shearing pin 4-19, roller shaft 5-10, auxiliary wheel Motor 5-11, motor mounting plate 5-12, gear hobbing 5-13; hydraulic rotator 6-4, left boom 6-1, upper boom cylinder pin 6-1b, left boom cylinder 6-1a, lower left hanger cylinder pin 6-1c, right boom 6-2, right hanger cylinder 6-2a, upper right boom cylinder pin 6-2b, lower right boom cylinder pin 6-2c, hanger fixing seat 6-3, hydraulic rotator 6-4, left hanger main shaft 6-5, right hanger main shaft 6-6, U-shaped hanger structure 60; Encoder sensor 7-1, measuring drive wheel 7-2, drive wheel protective plate 7-2a, telescopic adjustment component 7-3, measuring wheel axle 7-4, fixed support base 7-5, measuring support block 7-6, encoder support rod 7-7, U-shaped support base 7-8, adjusting support pin 7-9, telescopic adjustment component 7-30, sliding support cylinder 7-30a, sliding adjustment rod 7-30a, fixed connecting block 7-30c, buffer adjustment spring 7-31, lower limit support ring 7-32, upper limit support ring 7-33, tree 100. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of the present invention, and these aspects of the invention can be implemented even without these specific details.

[0016] Combination Figure 1 , Figure 2 and Figure 3As shown, according to a hydraulic shearing logging machine of the present invention, the shearing logging machine includes a main frame 10, a hydraulic shearing part 4 disposed at the rear end of the main frame 10, and a front clamping part 1, a feeding roller part 2, and a rear clamping part 3 arranged sequentially from the bottom of the front end to the bottom of the rear end of the main frame 10. An auxiliary wheel part 5 is disposed in the clamping space of the rear clamping part 3 and near the bottom of the rear end of the main frame 10. First support shafts 11 extending from the rear end to the front end are fixedly disposed on both sides of the lower end of the main frame 10, and the rear clamping part 3 is rotatably disposed on the rear end of the first support shafts 11 on both sides of the main frame 10. Feeding roller portions 2 are rotatably mounted on the front ends of the first support shafts 11 on both sides of the main mounting frame 10. A measuring support frame 8 is fixedly suspended on the inner wall of the top of the main mounting frame 10 in front of the auxiliary wheel portion 5. A measuring wheel assembly 7 extending towards the auxiliary wheel portion 5 is provided at the lower end of the measuring support frame 8. A rear support plate 12 extending from the top to the bottom is provided on the rear end section of the main mounting frame 10. The hydraulic shear portion 4 is fixed to the rear end of the main mounting frame 10 through the rear support plate 12. The rear ends of the two first support shafts 11 are fixed to the bottom sides of the rear end of the main mounting frame 10 through the rear support plate 12. The ends are fixed to the central bottom sides of the main frame 10 by the first intermediate support plates 13 respectively; the shearing logging machine also includes a hanging frame part 6 set above the top of the main frame 10, the lower end of the hanging frame part 6 is rotatably connected to the middle sides of the main frame 10, and the hanging frame cylinders 60 that are driven by the main frame 10 are respectively set on the opposite inner sides of the hanging frame part 6. The top of the hanging frame part 6 is provided with a connecting arm 61, and the hanging frame part 6 is installed and connected to the telescopic arm of the excavator through the connecting arm 61. When logging, the front clamping part 1 and the rear clamping part 3 jointly hold the tree 100, and then the hydraulic shearing part 4 The shears cut the tree, and after cutting, the tree 100 is laid down by the hanging part 6. After the tree 100 is laid down to a horizontal position, the front clamping part 1 and the rear clamping part 3 together hold the horizontal tree tightly, so that the upper side wall of the tree contacts the auxiliary wheel part 5 and the measuring wheel assembly 7 respectively. Under the push of the feeding roller part 2 and the guidance of the auxiliary wheel part 6, the tree is fed and pushed towards the hydraulic shear part 4 at the rear end of the main frame 10. During the movement of the wood, the measuring wheel assembly 7 measures the length of the wood movement as it moves under the guidance of the lower end of the auxiliary wheel part 5, and the hydraulic shear part 4 performs segmented cutting.

[0017] In this invention, such as Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a front support plate 14 extending from the top to the bottom is provided on the front section of the main mounting frame 10. Second support shafts 15 are respectively provided between the first intermediate support plate 13 on both sides of the main mounting frame 10 and the front support plate 14. The front clamping portion 1 is respectively provided on the second support shafts 15 on both sides of the main mounting frame 10. The front clamping portion 1 includes a left front clamping claw 1-1, a right front clamping claw 1-2, a left front clamping cylinder 1-3, and a right front clamping cylinder 1-4. The root of the left front clamping claw 1-1... The left front sleeve 1-10 is rotatably mounted on the second support shaft 15 on the left side of the front end of the mounting main frame 10. The root of the right front clamping claw 1-2 is rotatably mounted on the second support shaft 15 on the right side of the front end of the mounting main frame 10 via the right front sleeve 1-11. A left front cylinder support seat 1-10a, which is integrally connected to the root of the left front clamping claw 1-1, is provided on the side wall of the front end of the left front sleeve 1-10. The end of the output shaft of the left front clamping cylinder 1-3 is rotatably connected to the left front cylinder via the first left front cylinder pin 1-5. At the top of the support base 1-10a, the fixed end of the left front clamping cylinder 1-3 is rotatably sleeved on the second support shaft 15 on the right side of the front end of the mounting main frame 10. A right front cylinder support base 1-11a, integrally connected to the root of the right front clamping claw 1-2, is provided on the side wall at the rear end of the right front sleeve 1-11. The end of the output shaft of the right front clamping cylinder 1-4 is rotatably connected to the top of the right front cylinder support base 1-11a via the first right front cylinder pin 1-6. The fixed end of the right front clamping cylinder 1-4 is rotatably sleeved on... Located on the second support shaft 15 on the left side of the front end of the main frame 10, a left front hydraulic cylinder guard plate 1-3a is fitted on the left front clamping cylinder 1-3, and a right front hydraulic cylinder guard plate 1-4a is fitted on the right front clamping cylinder 1-4. When the left front clamping cylinder 1-3 and the right front clamping cylinder 1-4 extend and retract, the left front clamping claw 1-1 and the right front clamping claw 1-2 open and close accordingly, and rotate around the second support shaft 15 as the axis to adjust the angle of the left front clamping claw 1-1 and the right front clamping claw 1-2 to hold trees of different diameters.

[0018] In this invention, such as Figure 3 , Figure 4 and Figure 7As shown, the feeding roller section 2 includes a left feeding roller assembly 2-1 and a right feeding roller assembly 2-2, a feeding connecting rod 2-3, and a feeding roller cylinder 2-4, respectively disposed on both sides of the lower end of the mounting main frame 10. The left mounting seat 2-10 of the left feeding roller assembly 2-1 and the right mounting seat 2-11 of the right feeding roller assembly 2-2 are rotatably mounted on the corresponding first support shafts 11 on the left and right sides of the mounting main frame 10. The fixed end of the feeding roller cylinder 2-4 and one end of the feeding connecting rod 2-3 are rotatably connected to the right side via a right pin 2-7. On mounting base 2-11, the end of the output shaft of the feeding wheel cylinder 2-4 is rotatably connected to the top of the left mounting base 2-10 via a left pin 2-6. The other end of the feeding connecting rod 2-3 is rotatably connected to the lower end of the left mounting base 2-10. Second intermediate support plates 13a are respectively provided on the side walls of the lower end of the main mounting frame 10 between the first intermediate support plate 13 and the auxiliary wheel portion 5 to support the first support shaft 11. The first support shaft 11 is connected to the main mounting frame 10 as a fixed fulcrum. When the feeding wheel cylinder 2-4 extends or retracts, it is connected via... Feeding linkage 2-3 drives the left feeding wheel assembly 2-1 and the right feeding wheel assembly 2-2 to open and close synchronously, adjusting the angles of the left feeding wheel 2-1a and the right feeding wheel 2-2a to clamp trees of different diameters; when the feeding wheel cylinder 2-4 retracts, it pulls the left mounting base 2-10 and the right mounting base 2-11, and through the feeding linkage 2-3, drives the left feeding wheel 2-1a of the left feeding wheel assembly 2-1 and the right feeding wheel 2-2a of the right feeding wheel assembly 2-2 to move closer together and clamp the wood, and the left drive motor on the left feeding wheel assembly 2-1... The right drive motor 2-2b of the right feed wheel assembly 2-2 rotates and pushes the wood towards the hydraulic shearing part 4 at the rear end of the main frame 10. During the movement, the wood is cut by the hydraulic shearing part 4. When the feed wheel cylinder 2-4 extends, it pushes the left mounting seat 2-10 and the right mounting seat 2-11 and drives the left feed wheel 2-1a of the left feed wheel assembly 2-1 and the right feed wheel 2-2a of the right feed wheel assembly 2-2 to open outward through the feed connecting rod 2-3, releasing the tree and stopping the transmission to move the tree.

[0019] In this invention, such as Figure 3 , Figure 4 and Figure 8As shown, the rear clamping part 3 includes a left rear clamping jaw 3-1, a right rear clamping jaw 3-2, a left rear clamping cylinder 3-3, and a right rear clamping cylinder 3-4; the root of the left rear clamping jaw 3-1 is rotatably sleeved on the first support shaft 11 on the left side of the mounting main frame 10 via a left rear sleeve 3-10, and the root of the right rear clamping jaw 3-2 is rotatably sleeved on the first support shaft 11 on the right side of the mounting main frame 10 via a right rear sleeve 3-11. The mounting main frame is located in front of the rear support plate 12. A rear cylinder fixing seat 3-12 is provided at the top of the rear end of the 10. The fixed end of the left rear clamping cylinder 3-3 is rotatably connected to the top left side of the rear cylinder fixing seat 3-12 via a first left rear cylinder pin 3-5. The end of the output shaft of the left rear clamping cylinder 3-3 is rotatably connected to the top of the left rear cylinder support seat 3-10a via a second left rear cylinder pin 3-10b. A right rear cylinder support seat 3-11a is provided on the rear end of the right rear sleeve 3-11. The fixed end of the hydraulic cylinder 3-4 is rotatably connected to the top right side of the rear hydraulic cylinder fixing seat 3-12 via the first right rear hydraulic cylinder pin 3-6. The end of the output shaft of the right rear clamping hydraulic cylinder 3-4 is rotatably connected to the top of the right rear hydraulic cylinder support seat 3-11a via the second right rear hydraulic cylinder pin 3-11b. In this invention, the first support shaft 11 is connected to the mounting main frame 10 as a fixed fulcrum. When the left rear clamping hydraulic cylinder 3-3 and the right rear clamping hydraulic cylinder 3-4 extend and retract, they drive the entire rear clamping part 3. Rotating around the first support shaft 11, it can hold trees of different diameters. When the left rear clamping cylinder 3-3 and the right rear clamping cylinder 3-4 extend and retract, they simultaneously push the left rear cylinder support seat 3-10a of the left rear clamping claw 3-1 and the right rear cylinder support seat 3-11a of the right rear clamping claw 3-2 to move around the first support shaft 11 on the corresponding side, thereby adjusting the opening angle of the left rear clamping claw 3-1 and the right rear clamping claw 3-2 to hold trees of different diameters.

[0020] In this invention, such as Figure 3 , Figure 4 , Figure 9 and Figure 10As shown, the hydraulic shear section 4 includes a hydraulic shear housing 4-1 and a hydraulic shear body 4-0 vertically matched and disposed within the hydraulic shear housing 4-1. The front sidewall of the hydraulic shear housing 4-1 is fixed to the rear support plate 12 by a shear support seat 16. The hydraulic shear body 4-0 includes a left shearing arm 4-10, a right shearing arm 4-11, a left shearing cylinder 4-12, a right shearing cylinder 4-13, a left blade 4-14, and a right blade 4-15. The left shearing cylinder 4-12 and the right shearing cylinder 4-13 are symmetrically disposed inside the center of the upper half of the hydraulic shear housing 4-1. The left shearing arm 4-10 and the right shearing arm 4-11 are symmetrically disposed inside the hydraulic shear housing 4-1. The lower half of the housing 4-1 has two central sides inside; the upper ends of the left shearing cylinder 4-12 and the right shearing cylinder 4-13 are respectively rotatably connected to the inner sides of the upper end of the hydraulic shear housing 4-1 via upper shearing pins 4-16. The rotating ends of the left shearing arm 4-10 and the right shearing arm 4-11 are close to each other. The rotating end of the left shearing arm 4-10 is rotatably connected to the middle of the hydraulic shear housing 4-1 via a left shearing pin 4-10a extending in the front-back direction. The right shearing arm 4-11 is rotatably connected to the middle of the hydraulic shear housing 4-1 via a right shearing pin 4-11a extending in the front-back direction. The left shearing pin 4-10a and the right shearing pin 4-11a are rotatably connected to the middle of the hydraulic shear housing 4-1. The left and right shearing pins 4-10a and 4-11a are arranged parallel to each other at the same horizontal level. Both ends of the left shearing pin 4-10a and 4-11a are fixed to the middle side wall of the hydraulic shear housing 4-1 via pin support seats 4-17. The middle outer wall of the left shearing arm 4-10 is rotatably connected to the output shaft of the left shearing cylinder 4-12 via a first lower shearing pin 4-18, and the middle outer wall of the right shearing arm 4-11 is rotatably connected to the output shaft of the right shearing cylinder 4-13 via a second lower shearing pin 4-19. The left blade 4-14 and right blade 4-15 are symmetrically arranged along the opposite side of the left and right shearing arms 4-10 and 4-11, respectively. A [missing information - likely a design element] is provided on the outer wall of the left shearing arm 4-10. A left blade groove 4-10b opens towards the right shearing arm 4-11, and a right blade groove 4-11b opens towards the left shearing arm 4-10 on the outer wall of the right shearing arm 4-11. The left blade groove 4-10b and the right blade groove 4-11b are symmetrically arranged. The left blade 4-14 and the right blade 4-15 are fixed in the left blade groove 4-10b and the right blade groove 4-11b respectively with bolts. When the left shearing cylinder 4-12 extends or retracts, it drives the left shearing arm 4-10 to move. When the right shearing cylinder 4-13 extends or retracts, it pushes the right shearing arm 4-11 to move, thereby bringing the left blade 4-14 and the right blade 4-15 closer together to complete the tree pruning operation.

[0021] In this invention, such as Figure 3 , Figure 4 , Figure 11 and Figure 12As shown, the hanger section 6 includes a hydraulic rotator 6-4 and a U-shaped hanger structure 60 composed of a left boom 6-1 and a right boom 6-2. A hanger fixing seat 6-5 is provided at the head of the U-shaped hanger structure 60. A hydraulic rotator 6-4 for driving the U-shaped hanger structure 60 to rotate is provided on the hanger fixing seat 6-3. A connecting arm 61 connected to the telescopic boom of the excavator is provided at the top of the hydraulic rotator 6-4. A left boom cylinder 6-1a is provided along the inner side of the left boom 6-1, and a right hanger cylinder 6-2a is provided along the inner side of the right boom 6-2. The fixed end of the left boom cylinder 6-1a is rotatably connected to the inner side of the upper end near the left boom 6-1 via the upper left boom cylinder pin 6-1b. The output shaft of the left boom cylinder 6-1a is rotatably connected to the outer left side of the mounting frame 10 via the lower left hanger cylinder pin 6-1c. The fixed end of the right hanger cylinder 6-2a is rotatably connected to the inner side of the upper end near the right boom 6-1 via the upper right boom cylinder pin 6-2b. The output shaft of the right hanger cylinder 6-2a is rotatably connected to the outer right side of the mounting frame 10 via the lower right boom cylinder pin 6-2c. The lower end of the left boom 6-1 is rotatably connected to the outer left side of the mounting frame 10 via the left hanger main shaft 6-5. The lower end of the right boom 6-2a is rotatably connected to the outer left side of the mounting frame 10 via the right hanger main shaft 6-6. The dynamic connection is on the right outer wall of the main frame 10; the left boom 6-1 and the right boom 6-2 are connected to the main frame 10 through the corresponding left hanger main shaft 6-5 and hanger main shaft 6-6, respectively. The upper end of the left boom cylinder 6-1a and the upper end of the right hanger cylinder 6-2a are connected to the corresponding booms through cylinder pins. The output shafts of the left boom cylinder 6-1a and the right hanger cylinder 6-2a are connected to the outer wall of the main frame 10 on the corresponding side through cylinder pins. When the left boom cylinder 6-1a and the right hanger cylinder 6-2a extend and retract simultaneously, they drive the logging machine to rotate around the left hanger main shaft 6-5 and the right hanger main shaft 6-6, so that the upper section of the U-shaped hanger structure 60 remains relatively stationary, and the lower section of the U-shaped hanger structure 60 drives the logging machine to rotate. When the U-shaped hanger structure 60 rotates, the hydraulic rotator 6-4 drives the logging machine to rotate, thereby adjusting the angle of the entire logging machine.

[0022] In this invention, such as Figure 3 , Figure 4 , Figure 13 and Figure 14As shown, the auxiliary wheel part 5 includes a roller shaft 5-10 laterally disposed between the two rear ends of the main mounting frame 10 and auxiliary wheel motors 5-11 disposed on the outer sides of both ends of the roller shaft 5-10 for driving the roller shaft 5-10 to rotate. The auxiliary wheel motors 5-11 on the outer sides of both ends of the roller shaft 5-10 are respectively fixed to the outer side walls of the left and right sides of the main mounting frame 10 by motor mounting plates 5-12. The outer wall of the roller shaft 5-10 is an arc-shaped circumferential surface that tapers inward in the middle layer and protrudes outward at both ends. Hobbing teeth 5-13 with a cross-section in the shape of a horse's head are provided on the arc-shaped circumferential surface of the roller shaft 5-10. During the simultaneous rotation of the auxiliary wheel motors 5-11 at both ends of the roller shaft 5-10, the trees clamped below the main mounting frame 10 are guided and assisted in conveying to the hydraulic shear part 4, and the length of the trees conveyed is measured by the measuring wheel assembly 7.

[0023] In this invention, such as Figure 3 , Figure 4 , Figure 14 , Figure 15 and Figure 16As shown, the measuring wheel assembly 7 includes an encoder sensor 7-1, a measuring drive wheel 7-2, a telescopic adjustment assembly 7-3, and a measuring mounting assembly. The measuring mounting assembly includes a measuring wheel axle 7-4 and fixed support seats 7-5 mounted on the left and right side walls of the measuring support frame 8. The measuring wheel axle 7-4 is fixedly mounted on the fixed support seats 7-5 between the left and right side walls of the measuring support frame 8. A measuring support block 7-6 is rotatably sleeved on the measuring wheel axle 7-4. An encoder support rod 7-7 is provided on the left side wall of the measuring support block 7-6, extending downwards from the auxiliary wheel portion 5. The encoder sensor is horizontally fixed at the end of the encoder support rod 7-7. 7-1, The telescopic adjustment assembly 7-3 is rotatably mounted on the right side wall of the measuring support block 7-6. The output shaft of the encoder sensor 7-1 extends along one side of the telescopic adjustment assembly 7-3, and the measuring drive wheel 7-2 is rotatably mounted on the output shaft of the encoder sensor 7-1. The lower end of the telescopic adjustment assembly 7-3 is rotatably connected to the right side wall of the measuring support block 7-6, and the upper end of the telescopic adjustment assembly 7-3 extends along the upper side of the auxiliary wheel portion 5 and is fixed to the top inner wall of the mounting main frame 10. The telescopic adjustment assembly 7-3 includes a telescopic adjustment member 7-30 and a sleeve on the telescopic adjustment member 7-3. A buffer adjusting spring 7-31 is mounted on the outer wall of the measuring support block 7-6. The upper end of the buffer adjusting spring 7-31 is fixed to the upper end of the measuring support block 7-6. A lower limit support ring 7-32 is provided on the lower outer wall near the telescopic adjusting member 7-30. The lower end of the buffer adjusting spring 7-31 is close to the lower limit support ring 7-32. A U-shaped support seat 7-8 is provided on the right side wall of the measuring support block 7-6. The lower end of the telescopic adjusting member 7-30 is rotatably connected to the U-shaped support seat 7-8 via an adjusting support pin 7-9. The upper end of the telescopic adjusting member 7-30 extends along the upper side of the auxiliary wheel portion 5 and is fixed to the mounting main frame 10. At the top inner top; during the feeding and moving process of the tree 100 under the combined action of the feeding roller part 2 and the auxiliary wheel part 6, the wood extrusion measuring drive wheel 7-2 drives the measuring support block 7-6 to rotate, thereby adjusting the height of the telescopic adjustment component 7-3 and pressing the measuring drive wheel 7-2 downward. The measuring drive wheel 7-2 rotates continuously under the extrusion of the telescopic adjustment component 7-3 and the wood 100. During the rotation of the measuring drive wheel 7-2, the encoder sensor 7-1 also rotates and collects the length of the wood movement. After the material reaches the required length, the tree is stopped from being conveyed and the hydraulic shear part 4 performs segmented cutting of the tree 100.

[0024] In this invention, such as Figure 17As shown, the telescopic adjustment component 7-30 includes a sliding support cylinder 7-30a and a sliding adjustment rod 7-30a that is guided and slidably disposed within the sliding support cylinder 7-30b. The upper end of the sliding support cylinder 7-30a is fixed to the inner top wall of the mounting main frame 10 via a fixed connecting block 7-30c. An upper limit support ring 7-33 is provided near the upper end of the sliding support cylinder 7-30a. The lower end of the sliding adjustment rod 7-30a is rotatably connected to the U-shaped support seat 7-8 via an adjusting support pin 7-9. The upper end of the sliding adjustment rod 7-30a is guided and slidably disposed within the sliding support cylinder 7-30a along the lower end of the sliding support cylinder 7-30a. The upper limit support ring 7-32 is provided near the outer wall of the lower end of the sliding adjustment rod 7-30a. The buffer adjustment spring 7... The lower end of -31 is close to or in contact with the lower limit support ring 7-32, and the upper end of the buffer adjustment spring 7-31 is connected to the upper limit support ring 7-32; a drive wheel protection plate 7-2a is provided in front of the measuring drive wheel 7-2 near the auxiliary wheel part 5, one end of the drive wheel protection plate 7-2a is fixed inside the top of the main frame, and the other end of the drive wheel protection plate 7-2a is close to the measuring drive wheel 7-2; the upper end of the sliding support cylinder 7-30a passes through the drive wheel protection plate 7-2a and is fixed to the inner wall of the top of the main frame 10 by the fixed connecting block 7-30c. When the hobbing teeth 5-13 on the roller shaft 5-10 push the tree to move, it prevents wood chips from falling onto the buffer adjustment spring 7-31 and affecting the extension and retraction of the buffer adjustment spring 7-31;After tree 100 is laid horizontally, the front clamping part 1 and the rear clamping part 3 together clamp the horizontal tree, so that the upper sidewall of the tree contacts the auxiliary wheel part 5 and the measuring wheel assembly 7 respectively. The teeth on the circumference of the measuring drive wheel 7-2 press against the tree, so that the encoder support rod 7-7 on the measuring drive wheel 7-2 rotates slightly around the measuring wheel axle 7-4 via the measuring support block 7-6. When the measuring support block 7-6 rotates, it drives the U-shaped support seat 7-8 to rotate as well. During the slight rotation of the U-shaped support seat 7-8, it can drive the sliding adjustment rod 7-30a to slide inside the sliding support cylinder 7-30a. When sliding upward within 7-30a, the lower limit support ring 7-32 contacts the buffer adjustment spring 7-31, thereby preventing the U-shaped support seat 7-8 from rotating. The buffer adjustment spring 7-31, through the lower limit support ring 7-32 and the measuring support block 7-6, presses the measuring drive wheel 7-2 onto the tree 100. Under the combined action of the feeding roller part 2 and the guide of the auxiliary wheel part 6, feeding is performed, pushing the tree towards the hydraulic shear part 4 at the rear end of the main frame 10. During this process, the measuring drive wheel 7-2 continuously rotates on the output shaft of the encoder sensor 7-1 to collect and measure the length of the moving wood. Once the material reaches the required length, the tree feeding stops, and the hydraulic shear part 4 performs segmented cutting of the tree 100.

[0025] Combined with the present invention Figures 1 to 17The following describes the operation of the logging machine of the present invention. First, the telescopic boom of the excavator is connected to the connecting arm 61 of the hoisting part 6. The telescopic boom of the excavator lifts the main frame 10 to the location of the tree to be felled. Then, the angle of the main frame 10 is adjusted by the hoisting cylinder 60 and the hydraulic rotator 6-4 of the hoisting part, so that the main frame 10 is parallel to the tree 100. The hydraulic shearing part 4 is clamped at the location of the tree to be cut, and the left front clamping claw 1-1, the right front clamping claw 1-2 and the rear clamping part of the front clamping part 1 are used to clamp the tree. The left rear gripper 3-1 and right rear gripper 3-2 of the hydraulic shear unit 3 grip the tree 100 tightly. Next, the shearing cylinder of the hydraulic shear unit 4 pushes the blades (scissors) of the hydraulic shear unit 4 to cut (cut) the tree. The left shearing cylinder 4-12 pushes the left shearing arm 4-10 to move, and the right shearing cylinder 4-13 pushes the right shearing arm 4-11 to move, causing the left blade 4-14 on the left shearing arm 4-10 and the right blade 4-15 on the right shearing arm 4-11 to move closer together, thus cutting the tree. The cut tree is then gripped by the front clamp. The holding part 1 and the rear clamping part 3 together hold and clamp the tree, which is then lifted by the hanging part 6 and laid down. After the tree 100 is laid down to a horizontal position, the upper wall of the tree contacts the auxiliary wheel part 5 and the measuring wheel assembly 7 respectively. The left feeding wheel 2-1a of the left feeding wheel assembly 2-1 and the right feeding wheel 2-2a of the right feeding wheel assembly 2-2 move closer to each other to clamp the tree. The left drive motor 2-1b on the left feeding wheel assembly 2-1 and the right drive motor 2-2b on the right feeding wheel assembly 2-2 rotate and push the tree toward the hydraulic system at the rear end of the mounting frame 10. The shearing section 4 moves in one direction and is fed by the feeding roller section 2 and the auxiliary wheel section 6. This pushes the tree towards the hydraulic shearing section 4 at the rear end of the main frame 10. During the movement of the wood, the tree comes into contact with the measuring wheel assembly 7 while being guided by the lower end of the auxiliary wheel section 5. This causes the measuring drive wheel 7-2 of the measuring wheel assembly 7 to rotate. As the measuring drive wheel 7-2 rotates, it drives the encoder sensor 7-1 to measure the length of the tree's movement. The hydraulic shearing section 4 then performs segmented shearing.

[0026] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hydraulic shearing logging machine capable of measuring length, characterized in that: The shearing logging machine includes a main frame (10), a hydraulic shearing section (4) located at the rear end of the main frame (10), and a front clamping section (1), a feeding roller section (2), and a rear clamping section (3) arranged sequentially from the bottom of the front end to the bottom of the rear end of the main frame (10). An auxiliary wheel section (5) is provided in the clamping space of the rear clamping section (3) and near the bottom of the rear end of the main frame (10). An auxiliary wheel section (5) is fixedly provided on both sides of the lower end of the main frame (10) extending from the rear end to the front end. The first support shaft (11) extends, and the rear clamping part (3) is rotatably set on the rear end of the first support shaft (11) on both sides of the mounting main frame (10). The feeding roller part (2) is rotatably set on the front end of the first support shaft (11) on both sides of the mounting main frame (10). A measuring support frame (8) fixed to the inner wall of the top of the mounting main frame (10) is set in front of the auxiliary wheel part (5). A measuring wheel assembly (7) extending towards the auxiliary wheel part (5) is set at the lower end of the measuring support frame (8).

2. The hydraulic shearing logging machine with measurable length according to claim 1, characterized in that: A rear support plate (12) extending from the top to the bottom is provided on the rear section of the main frame (10). The hydraulic shear part (4) is fixed to the rear end of the main frame (10) through the rear support plate (12). The rear ends of the two first support shafts (11) are fixed to the bottom sides of the rear end of the main frame (10) through the rear support plate (12). The front ends of the two first support shafts (11) are fixed to the bottom sides of the center of the main frame (10) through the first intermediate support plates (13). The feeding roller part (2) includes a left feeding roller assembly (2-1) and a right feeding roller assembly (2-2) respectively provided on the lower sides of the main frame (10), a feeding connecting rod (2-3) and a feeding roller cylinder (2-4). The left mounting seat (2-10) of the left feeding roller assembly (2-1) is provided. The right mounting base (2-11) of the right feed wheel assembly (2-2) is rotatably mounted on the first support shaft (11) on the left and right sides of the mounting frame (10). The fixed end of the feed wheel cylinder (2-4) and one end of the feed connecting rod (2-3) are rotatably connected to the right mounting base (2-11) through the right pin (2-7). The end of the output shaft of the feed wheel cylinder (2-4) is rotatably connected to the top of the left mounting base (2-10) through the left pin (2-6). The other end of the feed connecting rod (2-3) is rotatably connected to the lower end of the left mounting base (2-10). A second intermediate support plate (13a) for supporting the first support shaft (11) is provided on the side walls of the lower end of the mounting frame (10) between the first intermediate support plate (13) and the auxiliary wheel part (5).

3. A hydraulic shearing logging machine with measurable length according to claim 1 or 2, characterized in that: The shearing logging machine includes a hanging frame part (6) located above the top of the main frame (10). The lower end of the hanging frame part (6) is rotatably connected to the two sides of the middle part of the main frame (10). Hanging frame cylinders (60) that drive the main frame (10) are respectively provided on the inner sides of the two sides of the hanging frame part (6). A connecting arm (61) is provided at the top of the hanging frame part (6). The hydraulic shearing part (4) includes a hydraulic shear housing (4-1) and a hydraulic shear body (4-0) matched and arranged vertically in the hydraulic shear housing (4-1). The front side wall of the hydraulic shear housing (4-1) is fixed to the rear support plate (12) by a shearing support seat (16). The hydraulic shear body (4-0) includes a left shear. The hydraulic shearing housing (4-11) comprises a cutting arm (4-10), a right shearing arm (4-11), a left shearing cylinder (4-12), a right shearing cylinder (4-13), a left blade (4-14), and a right blade (4-15). The left shearing cylinder (4-12) and right shearing cylinder (4-13) are symmetrically arranged inside the center of the upper half of the hydraulic shear housing (4-1). The left shearing arm (4-10) and right shearing arm (4-11) are symmetrically arranged inside the center of the lower half of the hydraulic shear housing (4-1). The upper ends of the left shearing cylinder (4-12) and the right shearing cylinder (4-13) are respectively rotatably connected to the inner sides of the upper end of the hydraulic shear housing (4-1) via upper shearing pins (4-16). The left shearing arm (4-10)... The rotating end of the left shear arm (4-10) is close to the rotating end of the right shear arm (4-11). The rotating end of the left shear arm (4-10) is rotatably connected to the middle of the hydraulic shear housing (4-1) via a left shear pin (4-10a) extending in the front-rear direction. The right shear arm (4-11) is rotatably connected to the middle of the hydraulic shear housing (4-1) via a right shear pin (4-11a) extending in the front-rear direction. The left shear pin (4-10a) and the right shear pin (4-11a) are arranged parallel to each other at the same horizontal height. The two ends of the left shear pin (4-10a) and the right shear pin (4-11a) are respectively fixed to the middle side wall of the hydraulic shear housing (4-1) by pin support seats (4-17). The outer wall of the middle part of (4-10) is rotatably connected to the output shaft of the left shearing cylinder (4-12) through the first lower shearing pin (4-18), and the outer wall of the middle part of the right shearing arm (4-11) is rotatably connected to the output shaft of the right shearing cylinder (4-13) through the second lower shearing pin (4-19); the left blade (4-14) and the right blade (4-15) are symmetrically arranged on the opposite side of the left shearing arm (4-10) and the right shearing arm (4-11), respectively; a left blade groove (4-10b) with an opening facing the right shearing arm (4-11) is provided on the outer wall of the left shearing arm (4-10), and a right blade groove (4-11b) with an opening facing the left shearing arm (4-10) is provided on the outer wall of the right shearing arm (4-11).

4. A hydraulic shearing logging machine with measurable length according to claim 2, characterized in that: The rear clamping part (3) includes a left rear clamping claw (3-1), a right rear clamping claw (3-2), a left rear clamping cylinder (3-3), and a right rear clamping cylinder (3-4). The root of the left rear clamping claw (3-1) is rotatably sleeved on the first support shaft (11) on the left side of the mounting main frame (10) through the left rear sleeve (3-10). The root of the right rear clamping claw (3-2) is rotatably sleeved on the first support shaft (11) on the right side of the mounting main frame (10) through the right rear sleeve (3-11). A rear cylinder fixing seat (3-12) is provided at the top of the rear end of the mounting main frame (10) on the front side of the rear support plate (12). The fixed end of the left rear clamping cylinder (3-3) is connected by the first left rear cylinder pin. (3-5) Rotatably connected to the top left side of the rear cylinder fixing seat (3-12), the end of the output shaft of the left rear clamping cylinder (3-3) is rotatably connected to the top of the left rear cylinder support seat (3-10a) through the second left rear cylinder pin (3-10b); a right rear cylinder support seat (3-11a) is provided on the rear end of the right rear sleeve (3-11), the fixed end of the right rear clamping cylinder (3-4) is rotatably connected to the top right side of the rear cylinder fixing seat (3-12) through the first right rear cylinder pin (3-6), and the end of the output shaft of the right rear clamping cylinder (3-4) is rotatably connected to the top of the right rear cylinder support seat (3-11a) through the second right rear cylinder pin (3-11b).

5. A hydraulic shearing logging machine with measurable length according to claim 1, characterized in that: A front support plate (14) extending from the top to the bottom is provided on the front section of the main frame (10). A second support shaft (15) is provided between the first intermediate support plate (13) on both sides of the main frame (10) and the front support plate (14). The front clamping part (1) is provided on the second support shaft (15) on both sides of the main frame (10).

6. A hydraulic shearing logging machine with measurable length according to claim 5, characterized in that: The front clamping part (1) includes a left front clamping jaw (1-1), a right front clamping jaw (1-2), a left front clamping cylinder (1-3), and a right front clamping cylinder (1-4). The root of the left front clamping jaw (1-1) is rotatably sleeved on the second support shaft (15) on the left side of the front end of the mounting main frame (10) through a left front sleeve (1-10). The root of the right front clamping jaw (1-2) is rotatably sleeved on the second support shaft (15) on the right side of the front end of the mounting main frame (10) through a right front sleeve (1-11). A left front cylinder support seat (1-10a) is provided on the side wall of the front end of the left front sleeve (1-10) and is integrally connected to the root of the left front clamping jaw (1-1). The end of the output shaft of the left front clamping cylinder (1-3) is... The first left front cylinder pin (1-5) is rotatably connected to the top of the left front cylinder support (1-10a). The fixed end of the left front clamping cylinder (1-3) is rotatably sleeved on the second support shaft (15) on the right side of the front end of the mounting frame (10). The right front cylinder support (1-11a) is provided on the side wall of the rear end of the right front sleeve (1-11) and is integrated with the root of the right front clamping claw (1-2). The end of the output shaft of the right front clamping cylinder (1-4) is rotatably connected to the top of the right front cylinder support (1-11a) through the first right front cylinder pin (1-6). The fixed end of the right front clamping cylinder (1-4) is rotatably sleeved on the second support shaft (15) on the left side of the front end of the mounting frame (10).

7. A hydraulic shearing logging machine with measurable length according to claim 1, characterized in that: The measuring wheel assembly (7) includes an encoder sensor (7-1), a measuring drive wheel (7-2), a telescopic adjustment assembly (7-3), and a measuring mounting assembly. The measuring mounting assembly includes a measuring wheel axle (7-4) and a fixed support seat (7-5) mounted on the left and right side walls of the measuring support frame (8). The measuring wheel axle (7-4) is fixedly mounted on the fixed support seat (7-5) between the left and right side walls of the measuring support frame (8). A measuring support block (7-6) is rotatably sleeved on the measuring wheel axle (7-4). An encoder support rod (7-7) is provided on the left side wall of the measuring support block (7-6) in the direction below the auxiliary wheel part (5). The encoder sensor (7-1) is horizontally fixed at the end of (7-7), and the telescopic adjustment assembly (7-3) is rotatably mounted on the right side wall of the measuring support block (7-6). The output shaft of the encoder sensor (7-1) extends along one side of the telescopic adjustment assembly (7-3), and the measuring drive wheel (7-2) is rotatably mounted on the output shaft of the encoder sensor (7-1). The lower end of the telescopic adjustment assembly (7-3) is rotatably connected to the right side wall of the measuring support block (7-6), and the upper end of the telescopic adjustment assembly (7-3) extends along the upper side of the auxiliary wheel part (5) and is fixed on the top inner wall of the mounting frame (10).

8. A hydraulic shearing logging machine with measurable length according to claim 7, characterized in that: The telescopic adjustment assembly (7-3) includes a telescopic adjustment member (7-30) and a buffer adjustment spring (7-31) sleeved on the outer wall of the telescopic adjustment member (7-30). The upper end of the buffer adjustment spring (7-31) is fixed to the upper end of the buffer adjustment spring (7-31). A lower limit support ring (7-32) is provided on the lower outer wall of the telescopic adjustment member (7-30). The lower end of the buffer adjustment spring (7-31) is close to the lower limit support ring (7-32). A U-shaped support seat (7-8) is provided on the right side wall of the measuring support block (7-6). The lower end of the telescopic adjustment member (7-30) is rotatably connected to the U-shaped support seat (7-8) through an adjustment support pin (7-9). The upper end of the telescopic adjustment member (7-30) extends along the upper side of the auxiliary wheel part (5) and is fixed on the top inner wall of the mounting main frame (10).

9. A hydraulic shearing logging machine with measurable length according to claim 7, characterized in that: The telescopic adjustment component (7-30) includes a sliding support cylinder (7-30a) and a sliding adjustment rod (7-30a) that is guided and slidably disposed within the sliding support cylinder (7-30b). The upper end of the sliding support cylinder (7-30a) is fixed to the inner top wall of the mounting main frame (10) by a fixed connecting block (7-30c). An upper limit support ring (7-33) is provided near the upper end of the sliding support cylinder (7-30a). The lower end of the sliding adjustment rod (7-30a) is rotatably connected by an adjusting support pin (7-9). The upper end of the sliding adjusting rod (7-30a) is slidably disposed inside the sliding support cylinder (7-30a) along the lower end of the sliding support cylinder (7-30a) and attached to the U-shaped support base (7-8). The upper limit support ring (7-32) is disposed near the lower outer wall of the sliding adjusting rod (7-30a). The lower end of the buffer adjusting spring (7-31) is close to or in contact with the lower limit support ring (7-32), and the upper end of the buffer adjusting spring (7-31) is connected to the upper limit support ring (7-32).

10. A method of using a hydraulic shearing logging machine with measurable length as described in any one of claims 1 to 9, characterized in that: The method of use includes the following steps: The main frame (10) of the shearing logger is installed and connected to the telescopic arm of the excavator and the shearing logger is hoisted to the position of the tree to be felled. The main frame (10) is adjusted to be parallel to the tree. The telescopic arm of the excavator drives the main frame (10) to move to the position of the tree. The hydraulic shearing part (4) is clamped at the position of the tree to be cut and the tree (100) is held tightly by the front clamping part (1) and the rear clamping part (3). Next, the hydraulic shear section (4) cuts the tree and lays it down in a horizontal position, so that the upper wall of the tree is pressed into contact with the auxiliary wheel section (5) and the measuring wheel assembly (7). Under the push of the feeding roller section (2) and the guidance of the auxiliary wheel section (6), the tree is fed and pushed towards the hydraulic shear section (4) at the rear end of the main frame (10). During the movement of the wood, the measuring drive wheel (7-2) is driven to rotate continuously to measure the length of the tree movement. When the measuring drive wheel (7-2) measures the length of the tree movement, the hydraulic shear section (4) performs segmented cutting operations.

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