Cutting head cutting device

Abstract

The utility model relates to the technical field of cutting heads, in particular to a cutting head cutting device which comprises a chain plate, a chain wheel and a saw assembly support, a chain-shaped blade is mounted on the chain wheel and the chain plate, a saw guide seat is assembled on the saw assembly support, and a saw guide plate is slidably arranged on the saw guide seat. The saw guide plate is connected with the chain plate; the saw further comprises a displacement assembly and a locking assembly. The displacement assembly is used for driving the saw guide plate to move so as to adjust the tension degree of the chain-shaped blade. And the locking assembly is used for locking the saw guide plate. The utility model has the advantages that the chain-shaped blade is convenient to tighten, adjust and replace, the reliability is good, and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of felling heads, in particular to a felling head cutting device. Background Art

[0002] The felling head is the core part of the felling machine, with the help of the felling head, the felling machine can cut down and remove branches of trees. Its principle is to drive the chain blade to rotate at high speed through the sprocket to cut the wood. Therefore, the chain blade needs to be maintained after a period of use. During maintenance, the clamping assembly of the chain blade is directly related to the convenience of maintenance operation and the stability of the high-speed operation of the chain blade. The clamping assembly of the traditional chain blade is mostly to tighten the chain of the chain blade manually and then lock and fix it by adjusting and pressing with bolts. During the high-speed cutting process of the chain blade, not only is there a lot of vibration, but the stress in all directions is also very large. Therefore, the chain often becomes loose and causes operational failures. The root cause is that the clamping assembly of the chain blade becomes loose due to vibration and stress, resulting in the loosening of the chain blade. Utility Model Content

[0003] In view of the above shortcomings, the utility model provides a felling head cutting device with a chain-shaped blade that is easy to adjust and tighten and has good use effect.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A felling head cutting device includes a chain plate and a sprocket, a chain-like blade is installed on the sprocket and the chain plate, and also includes a saw assembly support, the saw assembly support is equipped with a saw guide seat, and a saw guide plate is slidably provided on the saw guide seat; the saw guide plate is connected to the chain plate; it also includes a displacement assembly and a locking assembly, the displacement assembly includes a tensioning cam, the tensioning cam is connected to the saw guide plate, the displacement assembly adjusts the tension of the chain-like blade by controlling the displacement of the tensioning cam and driving the saw guide plate to move; the locking assembly is used to lock the saw guide plate. Optionally, the saw guide seat is provided with a tensioning shaft adjustment waist-shaped hole; a tensioning shaft is movably provided in the tensioning shaft adjustment waist-shaped hole; the tensioning cam and the saw guide plate are respectively provided on both sides of the saw guide seat; the tensioning shaft passes through the tensioning cam and the tensioning shaft adjustment waist-shaped hole, and its end is connected to the saw guide plate; the displacement assembly drives the tensioning shaft to move through the tensioning cam, thereby promoting the displacement of the saw guide plate and the chain plate, thereby achieving tension adjustment of the chain-like blade. Optionally, the displacement assembly also includes a spring adjustment assembly, the spring adjustment assembly including an adjustment screw, a spring support, and a spring; the spring support is assembled and fixed on the saw assembly support; a guide seat and the spring are provided on the spring support, and the adjustment screw passes through the guide seat and is retractable; an adjustment nut is provided on the adjustment screw, and the spring is sleeved on the adjustment screw, and the spring is provided between the guide seat and the adjustment nut; the lower end of the adjustment screw is connected to the tensioning cam. Optionally, the tensioning cam is designed with a plurality of adjusting screw mounting holes, and the adjusting screw is connected to the tensioning cam through the adjusting screw mounting holes.

[0006] Optionally, it further includes a spacer, a transition block and a locking bolt; the spacer and the transition block are fixed on the tightening cam through the locking bolt, and one end of the adjusting screw is connected to the transition block.

[0007] Optionally, the locking assembly is a chain plate tensioning cylinder, the outer end of the tensioning shaft is provided with an end limit block, the chain plate tensioning cylinder is arranged between the tensioning cam and the end limit block, and the tensioning cam is pressed and fixed by extending the chain plate tensioning cylinder.

[0008] Optionally, a guide key is provided on the saw guide seat, and a guide key matching groove is provided on the saw guide plate corresponding to the guide key. The saw guide plate is loosely matched with the saw guide seat and can move along the guide key.

[0009] Optionally, an oil groove is provided on the saw guide seat, and the oil groove is provided on the contact surface side of the saw guide plate and the saw guide seat; the oil groove is connected to an oil groove oil inlet pipe; and a lubricating oil guide hole is provided on the saw guide plate corresponding to the oil groove.

[0010] Optionally, it also includes a chainsaw motor, which is mounted on a saw guard assembly, and the saw assembly support and deep groove ball bearing are assembled and mounted on the chain saw motor head, and the saw guide seat is assembled on the saw assembly support; it also includes a chainsaw cylinder, and a chainsaw cylinder mounting support is provided on the saw mounting bracket of the saw guard assembly, and the chain saw cylinder is installed between the chain saw cylinder mounting support and the saw guide seat, the head pin shaft is assembled on the chain saw cylinder mounting support, and the tail pin shaft is assembled on the saw guide seat.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model can adjust the displacement of the chain plate through the spring adjustment component, thereby realizing rapid tightness adjustment and replacement of the chain-shaped blade, with good adjustment reliability and convenient operation; at the same time, by providing a chain plate tensioning oil cylinder, the adjusted chain plate can be clamped and fixed, which significantly improves the stability of the chain plate and prevents the chain-shaped blade from loosening when cutting wood at high speed, thereby affecting the cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the rear three-dimensional structure of the saw guard assembly of the utility model;

[0016] Figure 3 This is a schematic diagram of the front three-dimensional structure of the saw guard assembly of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the saw mounting assembly and the chain saw cylinder hydraulic assembly after assembly;

[0018] Figure 5 This is a structural diagram of the saw installation assembly of the utility model;

[0019] Figure 6 yes Figure 5 A partial cross-sectional view of

[0020] Figure 7 yes Figure 1 Schematic diagram of the local structure;

[0021] Figure 8 yes Figure 1 Schematic diagram of the local structure;

[0022] Figure 9 yes Figure 5 Schematic diagram of the structure after removing the chain tensioning cylinder;

[0023] Figure 10 yes Figure 9 Schematic diagram of the structure after removing the tensioning cam;

[0024] Figure 11 yes Figure 5 Schematic diagram of the front structure;

[0025] Figure 12 It is a structural diagram of the spring adjustment component and the tensioning cam after assembly;

[0026] Figure 13 It is a structural schematic diagram of the saw guide seat of the utility model. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "inside", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0029] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] A felling head cutting device, such as Figures 1 to 13As shown, it includes a saw guard assembly 1, a saw mounting assembly 2, and a chain saw cylinder hydraulic assembly 3. The saw guard assembly 1 consists of a saw mounting bracket 11, an end guard cover 12, a rubber buffer pad 13, a chain saw cylinder mounting support 14, a chain saw motor mounting plate 15, a chain saw motor protection cover plate 16, and a plate connector 17. The saw mounting bracket 11 of the saw guard assembly 1 is mounted on the left side of the felling head frame, the end guard cover 12 is mounted on the saw mounting bracket 11, the rubber buffer pad 13 is mounted between the saw mounting bracket 11 and the end guard cover 12, the chain saw cylinder mounting support 14 is mounted on the upper part of the saw mounting bracket 11, the chain saw motor mounting plate 15 is mounted on the chain saw motor mounting hole of the saw mounting bracket 11, the chain saw motor protection cover plate 16 is mounted on the left rear end of the saw mounting bracket 11, and the plate connector 17 is mounted on the inner back plate of the saw mounting bracket 11. The structural parts of the saw protection assembly 1 of the present invention are made of high-strength steel, which is impact-resistant and wear-resistant; a rubber buffer pad 13 is installed between the saw mounting bracket 11 and the end protection cover 12, which can effectively buffer the end protection cover 12 when it is hit, making the protection assembly less likely to deform.

[0031] The saw mounting assembly 2 includes a chain saw motor 201, a saw component support 202, a deep groove ball bearing 203, a bearing end cover 204, a saw guide seat 205, a connecting flange 206, a sprocket 207, a key 208, a saw guide plate 209, a guide key 210, a chain plate 211, a chain blade 212, a chain plate pressing block 213, a tensioning cam 214, a chain plate tensioning cylinder 215, and a tensioning shaft 216; the chain saw motor 201 of the saw mounting assembly 2 is mounted on the chain saw motor mounting plate 15 on the saw protection component 1, the saw component support 202 and the deep groove ball bearing 203 are assembled and then sleeved on the head of the chain saw motor 201, the bearing end cover 204 is assembled on the deep groove ball bearing 203 at the end of the chain saw motor 201 to limit the position, and the saw guide seat 205 is assembled on the saw component support 202 and supports the deep groove ball bearing 2 03 outer ring prevents it from moving in series, the connecting flange 206 is assembled on the drive shaft of the chain saw motor 201 by cooperating with the key 208, the sprocket 207 is assembled on the drive shaft of the chain saw motor 201 and cooperates with the key 208 to tightly fit the connecting flange 206, the key 208 is assembled between the drive shaft of the chain saw motor 201, the connecting flange 206 and the sprocket 207, the saw guide plate 209 is assembled on the saw guide seat 205 in conjunction with the guide key 210, the guide key 210 is assembled between the saw guide seat 205 and the saw guide plate 209, the chain plate 211 is fixed on the saw guide plate 209, the chain blade 212 is mounted on the sprocket 207 and the chain plate 211, the chain saw motor 201 drives the sprocket 207 to rotate, and the chain blade 212 assembled on the sprocket 207 and the chain plate 211 realizes high-speed sawing under the drive of the sprocket 207;

[0032] like Figure 11As shown, the chain plate pressing block 213 tightens the chain plate 211 to the saw guide plate 209 through the screw 213-1; in order to achieve the tension adjustment and locking fixation of the chain-like blade 212, a displacement component and a locking component are provided in this embodiment, such as Figures 9-10 As shown, the displacement assembly includes a tensioning cam 214, and a tensioning shaft adjusting waist-shaped hole 216-2 is provided on the saw guide seat 205; a tensioning shaft 216 is movably provided in the tensioning shaft adjusting waist-shaped hole 216-2; the tensioning cam 214 and the saw guide plate 209 are respectively provided on both sides of the saw guide seat 205; the tensioning shaft passes through the tensioning cam 214 and the tensioning shaft adjusting waist-shaped hole, and its end is connected to the saw guide plate 209; the displacement assembly drives the tensioning shaft 216 to displace through the tensioning cam 214, thereby promoting the displacement of the saw guide plate 209 and the chain plate 211, thereby realizing the tensioning and replacement of the chain-like blade 212.

[0033] In this embodiment, in order to improve the sliding smoothness and reliability of the saw guide plate 209, a guide key 210 is provided on the saw guide seat 205, and the saw guide plate 209 is provided with a guide key matching groove 209-1 corresponding to the guide key 210. The saw guide plate 209 is loosely matched with the saw guide seat 205 and can move along the guide key 210.

[0034] To facilitate adjustment, the displacement assembly also includes a spring adjustment assembly, which includes an adjusting screw 217, a spring support 219, and a spring 218; the spring support 219 is fixed to the saw assembly support 202 through a bracket assembly; a guide seat 217-1 and the spring 218 are provided on the spring support 219, and the adjusting screw 217 is telescopically arranged through the guide seat 217-1; an adjusting nut is provided on the adjusting screw 217, and a double nut is used in this embodiment. The adjusting screw 217 is sleeved with the spring 218, and the spring 218 is arranged between the guide seat and the adjusting nut; the lower end of the adjusting screw 217 is connected to the tensioning cam 214; by adjusting the double nut on the adjusting screw 217, the spring 218 installed on the adjusting screw 217 is compressed, the spring 218 is subjected to a pre-tightening force, the adjusting screw 217 slides in the guide seat, and drives the tensioning cam 214 to rotate. Since the tensioning cam 214 is an eccentric structure, when the tensioning cam 214 rotates clockwise, it pushes the tensioning shaft 216 to move to the left, and the tensioning shaft 216 pushes the saw guide plate 209 to move to the left along the guide key, thereby tensioning the chain-shaped blade 212. In this embodiment, the tensioning cam 214 is designed with four adjustment screw mounting holes. The adjustment screw 217 can be installed in the corresponding mounting hole according to the actual installation swing angle. The adjustment screw 217 is connected to the tensioning cam 214 through the adjustment screw mounting hole. Figure 12 As shown, it also includes a spacer, a transition block and a locking bolt; the spacer and the transition block are fixed on the tightening cam 214 through the locking bolt, and one end of the adjusting screw 217 is connected to the transition block.

[0035] In this embodiment, the locking assembly is a chain tensioning cylinder 215. An end stop 216-1 is provided at the outer end of the tensioning shaft 216. In this embodiment, the chain tensioning cylinder 215 is mounted on the tensioning shaft 216 and abuts against the tensioning cam 214, i.e., positioned between the tensioning cam 214 and the end stop 216-1. Extension of the chain tensioning cylinder 215 compresses and secures the tensioning cam 214. For example, in this embodiment, the chain tensioning cylinder 215, under the control of a hydraulic control system, applies a tensioning force when the cutting device is operating (cutting wood), causing the tensioning shaft 216 to tighten the chain 211. This prevents the chain blade 212 from loosening during high-speed wood cutting, thereby affecting cutting efficiency. When the cutting device is not operating, the tensioning cylinder 215 exerts no tension.

[0036] In this embodiment, in order to achieve lubrication of the chain-like blade 212, an oil groove 205-2 is provided on the saw guide seat 205, and the oil groove is provided on the side of the contact surface between the saw guide plate 209 and the saw guide seat 205; the oil groove is connected to an oil groove oil inlet pipe 205-1; and a lubricating oil guide hole 209-2 is provided on the saw guide plate 209 corresponding to the oil groove.

[0037] The chainsaw cylinder hydraulic assembly 3 comprises a chainsaw cylinder 31, a head pin 32, a tail pin 33, a chainsaw cylinder oil inlet pipe 34, a chainsaw cylinder oil return pipe 35, a chainsaw lubrication oil delivery pipe 36, and a tensioning cylinder oil delivery pipe 37. A chainsaw cylinder mounting bracket 14 is provided on the saw mounting bracket 11 of the saw guard assembly 1. The chainsaw cylinder 31 is mounted between the chainsaw cylinder mounting bracket 14 and the saw guide seat 205. The head pin 32 is mounted on the chainsaw cylinder mounting bracket 14, and the tail pin 33 is mounted on the saw guide seat 205. After being assembled to the machine, the chainsaw cylinder 31 of this embodiment has a built-in displacement sensor. When the four sets of blades of the felling head clamp the wood, the driving cylinder installed on the four sets of blades collects the wood diameter data through the built-in displacement sensor. The data is transmitted to the chainsaw cylinder 31 through the electronic control system on the felling head. The chainsaw cylinder 31 pushes the saw mounting assembly 2 to realize wood cutting. After the wood is cut, the saw mounting assembly 2 will automatically retract, and the felling head continues to transport the specified length of wood to complete the reciprocating cutting.

[0038] The cutting device is equipped with an automatic lubrication system. The felling head is equipped with a lubricating oil tank with a built-in sensor. When cutting wood, the electronic control system delivers lubricating oil through the chain saw lubricating oil pipe 36 to the saw guide seat 205. The lubricating oil is then delivered to the chain blade 212 through the lubricating oil guide hole 209-2, thereby lubricating the chain blade 212. When the cutting device is not operating, no lubricating oil is output. This design can significantly improve cutting efficiency and reduce cutting failures.

Claims

1. A felling head cutting device comprising a chain plate and a sprocket, with chain-shaped blades mounted on the sprocket and the chain plate, characterized in that: It also includes a saw assembly support, on which a saw guide seat is assembled, and a saw guide plate is slidably provided on the saw guide seat; the saw guide plate is connected to the chain plate; it also includes a displacement assembly and a locking assembly, the displacement assembly includes a tensioning cam, the tensioning cam is connected to the saw guide plate, the displacement assembly adjusts the tension of the chain-like blade by controlling the displacement of the tensioning cam and driving the saw guide plate to move; the locking assembly is used to lock the saw guide plate.

2. A felling head cutting device according to claim 1, characterized in that: The saw guide seat is provided with a tensioning shaft adjustment waist-shaped hole; a tensioning shaft is movably provided in the tensioning shaft adjustment waist-shaped hole; the tensioning cam and the saw guide plate are respectively provided on both sides of the saw guide seat; the tensioning shaft passes through the tensioning cam and the tensioning shaft adjustment waist-shaped hole, and its end is connected to the saw guide plate; the displacement assembly drives the tensioning shaft to displace through the tensioning cam, thereby promoting the displacement of the saw guide plate and the chain plate, thereby realizing the tensioning adjustment of the chain-like blade.

3. A felling head cutting device according to claim 1, characterized in that: The displacement assembly also includes a spring adjustment assembly, which includes an adjusting screw, a spring support, and a spring; the spring support is assembled and fixed on the saw assembly support; a guide seat and the spring are provided on the spring support, and the adjusting screw is telescopically arranged through the guide seat; an adjusting nut is provided on the adjusting screw, and the spring is sleeved on the adjusting screw, and the spring is arranged between the guide seat and the adjusting nut; the lower end of the adjusting screw is connected to the tightening cam.

4. A felling head cutting device according to claim 3, characterized in that: The tensioning cam is designed with a plurality of adjusting screw mounting holes, and the adjusting screw is connected to the tensioning cam through the adjusting screw mounting holes.

5. A felling head cutting device according to claim 3, characterized in that: It also includes a spacer, a transition block and a locking bolt; the spacer and the transition block are fixed on the tensioning cam through the locking bolt, and one end of the adjusting screw is connected to the transition block.

6. A felling head cutting device according to claim 2, characterized in that: The locking assembly is a chain plate tensioning cylinder, an end limit block is provided at the outer end of the tensioning shaft, the chain plate tensioning cylinder is arranged between the tensioning cam and the end limit block, and the tensioning cam is pressed and fixed by the extension of the chain plate tensioning cylinder.

7. A felling head cutting device according to claim 1, characterized in that: The saw guide seat is provided with a guide key, and the saw guide plate is provided with a guide key matching groove corresponding to the guide key. The saw guide plate is loosely matched with the saw guide seat and can move along the guide key.

8. A felling head cutting device according to claim 1, characterized in that: An oil groove is provided on the saw guide seat, and the oil groove is provided on the side of the contact surface between the saw guide plate and the saw guide seat; the oil groove is connected to an oil groove oil inlet pipe; and a lubricating oil guide hole is provided on the saw guide plate corresponding to the oil groove.

9. A felling head cutting device according to claim 1, characterized in that: It also includes a chainsaw motor, which is mounted on a saw guard assembly. The saw assembly support and the deep groove ball bearing are assembled and then mounted on the chain saw motor head, and the saw guide seat is assembled on the saw assembly support; it also includes a chainsaw cylinder, and a chainsaw cylinder mounting support is provided on the saw mounting bracket of the saw guard assembly. The chain saw cylinder is mounted between the chainsaw cylinder mounting support and the saw guide seat, the head pin shaft is assembled on the chain saw cylinder mounting support, and the tail pin shaft is assembled on the saw guide seat.

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