Saw chain guide plate

Abstract

The utility model discloses a saw chain guide plate which comprises a guide plate body and a guide plate head installed at the front end of the guide plate body. Wherein the guide plate head is provided with an oil injection hole group, a plugging structure is installed in the oil injection hole group, and the plugging structure can control communication and plugging of the oil injection hole group. Through the arrangement of the oil injection hole groups and the plugging structures, when lubricating oil needs to be supplemented, the oil injection hole groups can be communicated, so that the external lubricating oil can be smoothly injected into the chain wheel, the chain wheel is ensured to be in wet friction during rotation, the service life of the chain wheel is prolonged, and after the lubricating oil is injected, the chain wheel is prevented from being damaged. The oil injection hole group can be blocked, lubricating oil is prevented from flowing out and losing from the oil injection hole group, the lubricating time of the lubricating oil is prolonged, the oil injection frequency of workers is reduced, and the service life of the workers is shortened.

Description

Technical Field

[0001] This utility model relates to the field of saw chain equipment technology, specifically to a saw chain guide plate. Background Technology

[0002] Chain guides are an important component of the drive system of chainsaws or electric chainsaws. They have a robust track structure that stably supports the saw chain and ensures that the chain moves along a predetermined path during cutting, thus achieving precise sawing operations.

[0003] The quality and condition of the saw chain guide plate directly affect the saw chain's operational stability and sawing efficiency. Severe wear or improper installation of the guide plate can lead to the saw chain deviating from its track, increased vibration, and even chain breakage, causing safety issues.

[0004] In existing technology, logging equipment is equipped with an oil supply unit that provides lubricating oil to the saw chain guide plate, thus lubricating the saw chain on the guide plate. However, no lubrication structure is provided between the saw chain guide plate, sprocket body, and rollers, resulting in severe wear of the saw chain guide plate, sprocket body, and rollers in the guide plate head, affecting the service life of the guide plate head and rollers. To address this, the applicant has improved the sprocket, incorporating a lubrication structure. However, the lubricating medium in this structure requires frequent replenishment, significantly increasing the user's workload and reducing work efficiency. Therefore, to adapt to the sprocket improvement, the guide plate also needs to be modified to ensure that lubricating oil can be replenished to the lubrication structure on the sprocket, ensuring the service life of the lubrication structure and extending the service life of the saw chain guide plate, sprocket body, and rollers. Utility Model Content

[0005] The purpose of this invention is to provide a saw chain guide plate that can replenish lubricating oil on the lubrication structure of the sprocket, thereby further extending the service life of the saw chain guide plate, the sprocket body, and the rollers.

[0006] To achieve the above objectives, this utility model proposes a saw chain guide plate, including a guide plate body and a guide plate head installed at the front end of the guide plate body; wherein, the guide plate head is provided with an oil injection hole group connected to an oil supply unit, and a sealing structure is installed in the oil injection hole group, which can control the connection and sealing of the oil injection hole group.

[0007] Optionally, the guide plate body includes an inner plate and outer plates disposed on both sides of the inner plate. The inner plate and the outer plates together form an open guide plate groove, which is used to guide the movement of the saw chain.

[0008] Optionally, the inner plate and the outer plate are integrally formed, the guide plate head is set at the front end of the inner plate by rivets, and the outer plate is provided with a mounting groove for avoiding the guide plate head.

[0009] Optionally, the inner plate and the outer plate are joined together by rivets, and the guide plate head is integrally formed with the outer plate.

[0010] Optionally, the guide plate head includes two driven guide plates, a driven sprocket disposed between the two driven guide plates, and the oil injection hole group disposed on one of the driven guide plates.

[0011] Optionally, the orthographic projection of the oil injection hole group on the top surface of the driven guide plate is located within the orthographic projection range of the driven sprocket on the top surface of the driven guide plate, and both driven guide plates are provided with mounting grooves.

[0012] Optionally, the oil injection hole group is a countersunk hole, and the sealing structure includes a rubber plug adapted to the oil injection hole group, the rubber plug having a disassembly groove.

[0013] Optionally, the oil injection hole group includes a plugging hole and a connecting hole, wherein the diameter of the plugging hole is smaller than the diameter of the connecting hole, and the plugging structure is installed in the connecting hole to plug the plugging hole.

[0014] Optionally, the sealing structure includes a sealing frame located at the opening of the sealing hole, a mounting post mounted on the sealing frame, a spring fitted on the mounting post, and a sealing bead mounted on the spring, which can seal the sealing hole.

[0015] Optionally, a sealing ring is installed at the bottom of the connecting hole, and the diameter of the sealing bead is larger than the diameter of the sealing hole but smaller than the diameter of the connecting hole.

[0016] Compared with the prior art, the present invention provides a saw chain guide plate, which has the following beneficial effects:

[0017] This saw chain guide plate, through the setting of an oil injection hole group and a sealing structure, allows the oil injection hole group to be connected when lubricating oil needs to be replenished, so that external lubricating oil can be smoothly injected into the sprocket. This ensures that the sprocket is in wet friction when rotating, thus extending the service life of the sprocket. After the lubricating oil is injected, the oil injection hole group can be sealed to prevent the lubricating oil from flowing out or leaking, extending the lubrication time of the lubricating oil, reducing the frequency of lubrication by the operator, and reducing the service life of the operator. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the saw chain guide plate of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the guide plate body of this utility model.

[0020] Figure 3 This is a schematic diagram of the driven guide plate of this utility model.

[0021] Figure 4 This is a schematic diagram of the sprocket structure of this utility model.

[0022] Figure 5 This is a cross-sectional view of the driven guide plate of this utility model, which is equipped with an oil injection hole assembly.

[0023] Figure 6 This is a utility model Figure 5 A magnified view of a portion of point A in the middle.

[0024] Figure 7 This is a schematic diagram of the overall structure of the saw chain guide plate in Embodiment 2 of this utility model.

[0025] Figure 8 This is a cross-sectional view of the driven guide plate with an oil injection hole assembly in Embodiment 3 of this utility model.

[0026] Figure 9 This is a utility model Figure 8 A magnified view of a section at point B in the middle.

[0027] Figure 10 This is a cross-sectional view of the driven guide plate with an oil injection hole group in Embodiment 5 of this utility model.

[0028] Figure 11 This is a utility model Figure 10 A magnified view of a section at point C.

[0029] The diagram shows the following components: 1. Guide plate body; 11. Inner plate; 12. Outer plate; 13. Guide plate groove; 14. Mounting groove; 2. Guide plate head; 21. Driven guide plate; 22. Driven sprocket; 221. Boss; 23. Mounting groove; 3. Oil injection hole group; 31. Sealing hole; 32. Connecting hole; 321. Sealing ring; 4. Sealing structure; 41. Rubber plug; 42. Disassembly groove; 43. Sealing frame; 44. Mounting column; 45. Spring; 46. Sealing bead; 401. Sealing block; 402. Movable hole; 403. Movable spring; 404. Control column; 405. Lifting block; 406. Connecting plate; 407. Sealing column; 408. Oil passage hole. Detailed Implementation

[0030] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, illustrates the present invention. Numerous specific details are set forth in the description below to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] The saw chain guide plate of this application is suitable for providing oiling conditions for the improved sprocket, and can also be used in other similar application scenarios. The following is a detailed description of a saw chain guide plate.

[0032] Example 1

[0033] See appendix Figure 1 — Figure 6 The diagram shows a structural schematic of a preferred embodiment of this application. The saw chain guide includes a guide body 1 and a guide head 2 installed at the front end of the guide body 1; wherein, the guide head 2 is provided with an oil injection hole group 3 communicating with the sprocket lubrication channel, and a sealing structure 4 is installed in the oil injection hole group 3, which can control the communication and sealing of the oil injection hole group 3.

[0034] This invention, through the setting of the oil injection hole group 3, allows the operator to inject lubricating oil into the guide plate head 2, thus replenishing the lubricating oil; through the setting of the sealing structure 4, it prevents the injected lubricating oil from flowing out of the oil injection hole group 3, ensuring that the lubricating oil can lubricate the driven sprocket 22 in the guide plate head 2, thereby extending the service life of the guide plate head 2.

[0035] See appendix Figure 1 and Figure 2 As shown, in this utility model, the guide plate body 1 includes an inner plate 11 and an outer plate 12 disposed on both sides of the inner plate 11. The inner plate 11 and the outer plate 12 together form an open guide plate groove 13, which is used to guide the movement of the saw chain. The inner plate 11 and the outer plate 12 are integrally formed. The guide plate head 2 is riveted to the front end of the inner plate 11 by rivets. The outer plate 12 is provided with an installation groove 14 for avoiding the guide plate head 2.

[0036] This utility model increases the mechanical strength of the guide plate body 1 by integrally processing the inner plate 11 and the outer plate 12; guides the movement direction of the saw chain by setting the guide plate groove 13; and avoids the guide plate head 2 by setting the mounting groove 14, so that the guide plate head 2 can be installed normally.

[0037] See appendix Figure 2 — Figure 4 As shown, in this utility model, the guide plate head 2 includes two driven guide plates 21, a driven sprocket 22 disposed between the two driven guide plates 21, and an oil injection hole group 3 disposed on one of the driven guide plates 21.

[0038] This utility model provides an installation position for the driven sprocket 22 by setting the driven guide plate 21, and the two driven guide plates 21 form a saw chain groove, which is connected to the guide plate groove 13 and the groove width is also equal; the driven sprocket 22 is used to tension and guide the saw chain.

[0039] It should be noted that in this invention, both driven guide plates 21 are provided with mounting grooves 23. These grooves provide a mounting position for the driven sprocket 22, ensuring its normal rotation. The driven sprocket 22 has a lubrication structure, and the oil injection hole group 3 is used to replenish the lubricating oil in the lubrication structure. Specifically, the driven sprocket 22 includes a rotating central shaft mounted on the driven guide plate 21, rolling elements surrounding the outer ring wall of the rotating central shaft, and an outer ring sleeve fitted onto the rolling elements. The sprocket is mounted on the outer ring sleeve, and a lubrication cavity is formed between the rotating central shaft and the outer ring sleeve. This lubrication cavity is filled with solid lubricating oil such as high-temperature lithium-based grease. A boss 221 corresponding to the mounting groove 23 is provided at the center of the driven sprocket 22. By cooperating with the mounting groove 23, this application can increase the contact area between the driven sprocket 22 and the driven guide plate 21, so that the force on the driven sprocket 22 can be transmitted through the cooperation of the boss 221 and the mounting groove 23, thereby extending the service life of the driven sprocket 22.

[0040] See appendix Figure 2 — Figure 6 As shown, in this utility model, the orthographic projection of the oil injection hole group 3 on the top surface of the driven guide plate 21 is located within the orthographic projection range of the driven sprocket 22 on the top surface of the driven guide plate 21.

[0041] This invention limits the projection of the oil injection hole group 3 to within the projection of the driven sprocket 22, ensuring that when the operator injects lubricating oil through the oil injection hole group 3, the lubricating oil can be added to the driven sprocket 22, thus extending the service life of the driven sprocket 22 and the driven guide plate 21.

[0042] See appendix Figure 5 and Figure 6 As shown, in this utility model, the oil injection hole group 3 is a countersunk hole, and the sealing structure 4 includes a rubber plug 41 that is adapted to the oil injection hole group 3. The rubber plug 41 is provided with a disassembly groove 42.

[0043] This utility model provides convenience for workers to disassemble the rubber stopper 41 by setting the injection hole group 3 as a countersunk hole, which allows the rubber stopper 41 to be installed normally; the setting of the disassembly groove 42 further facilitates the workers to disassemble the rubber stopper 41.

[0044] See appendix Figure 1 — Figure 6 As shown, the working principle of this utility model is as follows:

[0045] When it is necessary to replenish the lubricating oil of the driven sprocket 22, the operator can remove the rubber plug 41 through the disassembly groove 42, and then replenish the lubricating oil through the oil filling hole group 3. After replenishment, the rubber plug 41 can be installed in the countersunk hole.

[0046] Example 2

[0047] See appendix Figure 7 As shown, the difference between this embodiment and the above embodiment is that in this embodiment, the inner plate 11 and the outer plate 12 are spliced ​​by rivets, and the driven guide plate 21 in the guide plate head 2 is integrally formed with the outer plate 12.

[0048] In this embodiment, the inner plate 11 and the outer plate 12 are riveted together to form a three-in-one guide plate. Compared with the guide plate of Embodiment 1, the guide plate head 2 in this application can be integrally formed with the outer plate 12. Compared with Embodiment 1, the connection strength between the guide plate head 2 and the guide plate body 1 in this application is higher.

[0049] Example 3

[0050] See appendix Figure 8 and Figure 9 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the oil injection hole group 3 includes a sealing hole 31 and a connecting hole 32. The diameter of the sealing hole 31 is smaller than the diameter of the connecting hole 32. The sealing structure 4 is installed in the connecting hole 32 to seal the sealing hole 31. The sealing structure 4 includes a sealing frame 43 located at the opening of the sealing hole 31, a mounting post 44 mounted on the sealing frame 43, a spring 45 fitted on the mounting post 44, and a sealing bead 46 fixedly mounted on the spring 45 by welding. The sealing bead can seal the sealing hole 31. A sealing ring 321 is installed at the bottom of the connecting hole 32. The diameter of the sealing bead 46 is larger than the diameter of the sealing hole 31 and smaller than the diameter of the connecting hole 32.

[0051] The difference between this embodiment and the above embodiment is that the sealing structure 4 in this embodiment does not need to be disassembled. When oil injection is required, simply align the lubricating oil outlet of the oil injector (such as a syringe that can inject oil) with the oil injection hole group 3 and insert it, so that the sealing bead 46 moves along the oil injection hole group 3 and compresses the spring 45. At this time, oil injection can be performed. After the oil injection is completed, pull out the oil injector, and the spring 45 resets and pushes the sealing bead 46 to reset.

[0052] Example 4

[0053] See appendix Figure 10 and Figure 11As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the sealing structure 4 includes a sealing block 401 installed at the opening of the oil injection hole group 3, a movable hole 402 provided on the sealing block 401, a movable spring 403 installed in the movable hole 402, a control column 404 located in the movable hole 402 and penetrating the sealing block 401, a lifting block 405 provided at the top of the control column 404 and in contact with the movable spring 403, a connecting plate 406 provided at the bottom of the lifting block 405, a sealing column 407 installed on the connecting plate 406, and an oil passage hole 408 provided at the center of the sealing block 401 corresponding to the sealing column 407.

[0054] In this embodiment, when oil injection is required, the operator only needs to press down on the control column 404 or directly insert the oil injector into the oil passage 408. Specifically, when oil is injected in the above manner, the movable spring 403 will be compressed, opening the oil passage 408. In this embodiment, the movable spring 403 is separated from the hole for injecting lubricating oil to prevent the movable spring 403 from contaminating the lubricating oil.

[0055] The above embodiments are illustrative of this application and are not intended to limit this application. Any simple modifications to this application are within the protection scope of this application.

Claims

1. A saw chain guide plate, which is installed on a logging apparatus provided with an oil supply unit, the saw chain guide plate comprising a guide plate main body (1), a guide plate head (2) installed at a front end of the guide plate main body (1); characterized in that, The guide plate head (2) is provided with an oil injection hole group (3) which is connected with an oil supply unit.

2. The saw chain guide of claim 1, wherein, The oil injection hole group (3) is provided with a blocking structure (4) which can control the connection and blocking of the oil injection hole group (3). The guide plate main body (1) comprises an inner plate (11), outer plates (12) arranged on both sides of the inner plate (11), and a guide plate groove (13) with an opening formed by the inner plate (11) and the outer plates (12), which is used for guiding the movement of the saw chain.

3. The saw chain guide bar according to claim 2, characterized in that The inner plate (11) and the outer plates (12) are integrally formed, the guide plate head (2) is arranged at the front end of the inner plate (11) through rivets, and the outer plates (12) are provided with mounting grooves (14) for avoiding the guide plate head (2).

4. The saw chain guide bar according to claim 2, characterized in that The inner plate (11) and the outer plates (12) are spliced through rivets, and the guide plate head (2) is integrally formed with the outer plates (12).

5. The saw chain guide of claim 1, wherein, The guide plate head (2) comprises two driven guide plates (21) and a driven sprocket (22) arranged between the two driven guide plates (21), and the oil injection hole group (3) is arranged on one of the driven guide plates (21).

6. The saw chain guide of claim 5, wherein, The normal projection of the oil injection hole group (3) on the top surface of the driven guide plate (21) is located within the normal projection range of the driven sprocket (22) on the top surface of the driven guide plate (21), and the two driven guide plates (21) are each provided with a mounting groove (23).

7. The saw chain guide of claim 2, wherein, The oil injection hole group (3) is a countersunk hole, the blocking structure (4) comprises a rubber plug (41) matched with the oil injection hole group (3), and the rubber plug (41) is provided with a dismounting groove (42).

8. The saw chain guide of claim 2, wherein, The oil injection hole group (3) comprises a blocking hole (31) and a communication hole (32), the diameter of the blocking hole (31) is smaller than that of the communication hole (32), and the blocking structure (4) is installed in the communication hole (32) to block the blocking hole (31).

9. The saw chain guide of claim 8, wherein, The blocking structure (4) comprises a blocking frame (43) located at the opening of the blocking hole (31), a mounting column (44) installed on the blocking frame (43), a spring (45) sleeved on the mounting column (44), and a blocking bead (46) installed on the spring (45), which can block the blocking hole (31). A sealing ring (321) is installed at the bottom of the communication hole (32), the diameter of the blocking bead (46) is greater than that of the blocking hole (31) and smaller than that of the communication hole (32).

10. The saw chain guide of claim 2, wherein, The sealing structure (4) comprises a sealing block (401) installed at the orifice of the oil injection hole group (3), a movable hole (402) arranged on the sealing block (401), a movable spring (403) installed in the movable hole (402), a control column (404) arranged in the movable hole (402) and penetrating through the sealing block (401), a lifting block (405) arranged at the top of the control column (404) and in contact with the movable spring (403), a connecting plate (406) arranged at the bottom of the lifting block (405), a sealing column (407) installed on the connecting plate (406), and an oil passage (408) arranged at the center of the sealing block (401) and corresponding to the sealing column (407).

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