Saw chain guide plate assembly

Abstract

The utility model discloses a saw chain guide plate assembly which comprises a guide plate body, a driven connecting structure, a rotating structure and a driven wheel. The guide plate body comprises outer plates and an inner plate arranged between the two outer plates, and the inner plate and the two outer plates define a saw chain groove used for moving of a saw chain. The driven connecting structure is fixedly arranged at one end of the guide plate main body and provides mounting support for the rotating structure; and the outer wall of the rotating structure is fixedly mounted on the driven connecting structure. Through the arrangement of the rotating structure, the heights of the outer ring body, the rolling piece and the inner supporting body in the rotating structure are increased, the contact area of the rolling piece can be effectively increased, and the bearing capacity of the rolling piece is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to saw chain technology fields, concretely relates to a saw chain guide plate assembly. BACKGROUND

[0002] Chain saw equipment mainly includes two categories of motorized chain saw (such as gasoline chain saw, electric chain saw, etc.) and non-motorized chain saw. Among them, motorized chain saw is widely used in forestry, landscaping, construction and other industries because of its high efficiency and flexibility. The working principle of chain saw equipment is based on the transverse movement of the saw chain to cut the cutting object such as wood. When the equipment starts, the saw chain rotates at high speed in the saw chain guide plate, and the staggered L-shaped blades continuously contact the cutting object such as wood, realizing cutting operation through shearing force. In this process, the sharpness, tension and stability of the saw chain directly affect the cutting efficiency and safety.

[0003] The saw chain guide plate, also known as chain plate and saw plate, is an important part of the transmission system of oil saw and saw chain, mainly to make the saw chain follow the straight line transmission to complete the cutting operation. It not only provides support for the saw chain, but also ensures the correct direction and stability of the saw chain during cutting. The saw chain guide plate generally includes a saw chain inlet, a guide rail, a guide plate slot, a lubricating oil hole, a tail part, a head part and other structures. The conventional guide plate on the market has some shortcomings, and the driving sprocket and driven sprocket installed on it may have transmission coordination problems.

[0004] After searching, the utility model patent with the patent number "CN219882687U" and the patent name "a guide plate of chain saw" has improved this problem. The utility model patent uses two driven wheels and a first limiting slot between the two driven wheels to support and limit the saw chain, thereby solving the problem of transmission incoordination between the driving sprocket and the driven sprocket caused by length adjustment in the prior art.

[0005] However, the utility model patent still has some shortcomings, mainly the following problems:

[0006] 1. The length of the existing roller is limited by the slot width of the saw chain slot on the guide plate body to ensure that the roller will roll in the saw chain slot. However, it is found that during use, when cutting large trees, the roller is often damaged due to excessive load, which requires frequent replacement of the guide plate head, seriously affecting work efficiency;

[0007] 2. The lubrication structure design on the guide plate head is not reasonable enough. The oil injection structure on the guide plate cannot contact the balls, shaft, and shaft hole, causing the balls and shaft to dissipate heat only through the first limiting groove. Therefore, there is dry friction between the balls, shaft, and shaft hole. During use, the friction loss is large and the temperature rises rapidly, affecting the service life of the balls and shaft, thus seriously affecting the service life of the guide plate. Furthermore, due to insufficient lubrication, high-speed rotation is not possible, affecting the cutting speed of the saw chain and consequently affecting work efficiency.

[0008] Therefore, how to improve the saw chain guide plate and provide a saw chain guide plate with a long service life and guaranteed saw chain cutting efficiency is an urgent technical problem to be solved. Utility Model Content

[0009] The purpose of this utility model is to propose a saw chain guide plate assembly to solve the problems in the prior art where the guide plate head has poor load-bearing capacity and the lubrication structure is not reasonable enough, which affects the service life and working efficiency of the guide plate.

[0010] To achieve the above objectives, this utility model proposes a saw chain guide assembly, including a guide body, a driven connection structure, a rotating structure, and a driven wheel; the guide body includes an outer plate and an inner plate disposed between two outer plates, the inner plate and the two outer plates forming a saw chain groove for saw chain movement; the driven connection structure is fixedly disposed at one end of the guide body, providing mounting support for the rotating structure; the outer wall of the rotating structure is fixedly mounted on the driven connection structure.

[0011] Optionally, the rotating structure includes an inner support body, a rolling element surrounding the outer wall of the inner support body, and an outer ring body fitted onto the rolling element. The height of the inner support body, the rolling element, and the outer ring body is greater than the width of the saw chain groove. The rotating structure is provided with a lubrication structure.

[0012] Optionally, the driven wheel is mounted on the inner support body, and the driven wheel drives the inner support body to rotate.

[0013] Optionally, the rotating structure further includes caps located at both ends of the inner support body, with the rolling element located between the two caps; the height of the outer ring body is equal to or greater than the height of the rolling element; the height of the rolling element is less than or equal to twice the width of the saw chain groove.

[0014] Optionally, the height of the outer ring is equal to or less than the height of the inner support; the outer ring, whose height is equal to the height of the inner support, is provided with a groove corresponding to the cover; the rolling element is located in the lubrication structure.

[0015] Optionally, the lubrication structure includes a lubrication cavity formed by an inner support, an outer ring, and a cap, with a first oil inlet hole connected to the lubrication cavity in the outer ring.

[0016] Optionally, the inner support body is provided with an oil storage tank, and the inner support body is also provided with a connecting hole that communicates with the oil storage tank.

[0017] Optionally, the driven connection structure includes a driven connection plate and a driven mounting plate integrally formed with the driven connection plate. The driven mounting plate is provided with a through hole, and the outer wall of the outer ring body is fixedly mounted on the hole wall of the through hole.

[0018] Optionally, the driven connecting plate can be fixedly installed on the guide plate body by riveting, or integrally formed with the guide plate body.

[0019] Optionally, the driven connecting plate, which is fixed by riveting, is provided with an insert plate, and a slot adapted to the insert plate is formed between the outer plate and the inner plate. The thickness of the driven connecting plate is greater than the thickness of the guide plate body.

[0020] Optionally, the driven wheel is composed of two identical transmission circular plates. Both transmission circular plates are mounted on the inner support body and are located at both ends of the inner support body. The transmission circular plates are provided with a mounting groove corresponding to the rotating structure at the middle position. The distance between the two transmission circular plates is equal to the width of the saw chain groove.

[0021] Optionally, the minimum distance between the two transmission circular plates is less than the width of the saw chain groove. The outer side wall of the transmission circular plate is provided with slots at equal angles. The groove walls of the slots on the two transmission circular plates are parallel, and the maximum distance between the slots on the two transmission circular plates is equal to the width of the saw chain groove.

[0022] Optionally, the transmission circular plate is provided with a thickening ring, and the slot is provided on the outer ring wall of the thickening ring; the transmission circular plate is provided with an insertion block, and the inner support body is provided with an insertion hole corresponding to the insertion block.

[0023] Optionally, one of the transmission circular plates is provided with a manual oil injection hole at its center, and the manual oil injection hole is provided with a sealing element.

[0024] Optionally, the rolling elements are arranged in a columnar shape, and adjacent rolling elements are either in contact or spaced apart.

[0025] Optionally, the cover is provided with a limiting structure for limiting the rolling element. The limiting structure includes a limiting groove provided on the upper limit portion of the cover and adapted to the rolling element.

[0026] Compared with the prior art, the present invention provides a saw chain guide assembly, which has the following advantages:

[0027] This saw chain guide assembly, through the setting of a rotating structure, increases the height of the outer ring, rolling elements, and inner support body in the rotating structure, which can effectively increase the contact area of ​​the rolling elements, improve the load-bearing capacity of the rolling elements, and extend the service life of the rolling elements. Compared with improving the production materials, the cost of this application is lower, and compared with increasing the roller diameter, the weight increase of this application is smaller, and it does not require modification of the driven wheel size, ensuring that the load-bearing capacity of the driven wheel is not affected.

[0028] In addition, the lubrication structure on the rotating structure of this application can reduce the friction of the rolling elements during rotation, reduce the heating rate of the rolling elements, dissipate heat from the rolling elements, and enable the rolling elements to undergo wet friction, thereby allowing the rolling elements to rotate at high speeds, ensuring working efficiency, and extending the service life of the rolling elements. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0030] Figure 2 This is a utility model Figure 1 A magnified view of a portion of point A in the middle.

[0031] Figure 3 This is a schematic diagram of the guide plate body that is detachably connected to the driven connection structure in this utility model.

[0032] Figure 4 This is a schematic diagram of the driven connection structure that is detachably connected to the guide plate body in this utility model.

[0033] Figure 5 This is a schematic diagram of the rotating structure in this utility model.

[0034] Figure 6 This is a cross-sectional view of the rotating structure in this utility model.

[0035] Figure 7 This is a schematic diagram of the rotating structure after the cap is removed in this utility model.

[0036] Figure 8 This is a schematic diagram of the transmission circular plate in this utility model.

[0037] Figure 9 This is a cross-sectional view of the guide plate body and the driven connecting plate integrally formed in this utility model.

[0038] Figure 10 This is a schematic diagram of the integral molding of the guide plate body and the driven connecting plate in this utility model.

[0039] Figure 11 This is a cross-sectional view of the rotating structure in Embodiment 2 of this utility model.

[0040] Figure 12 This is a schematic diagram of the rotating structure in Embodiment 2 of this utility model.

[0041] Figure 13 This is a schematic diagram of the driven wheel in Embodiment 3 of this utility model.

[0042] Figure 14 This is a schematic diagram of the transmission circular plate in Embodiment 3 of this utility model.

[0043] Figure 15 This is a schematic diagram of the transmission circular plate in Embodiment 4 of this utility model.

[0044] Figure 16 This is a schematic diagram of the driven connection structure in Embodiment 4 of this utility model.

[0045] Figure 17 This is a schematic diagram of the transmission circular plate in Embodiment 5 of this utility model.

[0046] Figure 18 This is a schematic diagram of the structure of the inner support body in Embodiment 5 of this utility model.

[0047] Figure 19 This is a schematic diagram of the cooperation between the limiting structure and the rolling element in Embodiment 6 of this utility model.

[0048] Figure 20 This is a schematic diagram of the sealing and limiting structure in Embodiment 6 of this utility model.

[0049] Figure 21 This is a cross-sectional view of the inner support body in Embodiment 7 of this utility model.

[0050] Figure 22 This is a cross-sectional view of the transmission circular plate in Embodiment 7 of this utility model.

[0051] The diagram shows the following components: 1. Guide plate body; 11. Outer plate; 12. Inner plate; 13. Saw chain groove; 2. Driven connection structure; 21. Driven connection plate; 211. Insert plate; 212. Slot; 22. Driven mounting plate; 23. Through hole; 3. Rotating structure; 31. Inner support body; 32. Rolling element; 33. Outer ring body; 331. Groove; 34. Cover; 35. Limiting structure; 351. Limiting part; 352. Limiting groove; 4. Driven wheel; 41. Transmission round plate; 411. Insert block; 412. Insertion hole; 413. Thickening ring; 414. Manual oil injection hole; 415. Sealing element; 42. Mounting groove; 43. Slot; 5. Lubrication structure; 51. Lubrication cavity; 52. First oil inlet hole; 53. Oil reservoir; 54. Connecting hole. Detailed Implementation

[0052] 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.

[0053] The saw chain guide assembly of this application is applicable to various sawing operations and other similar applications. The following is a detailed description of a saw chain guide assembly.

[0054] Example 1

[0055] See appendix Figure 1 — Figure 10 As shown, the saw chain guide plate assembly of this utility model includes a guide plate body 1, a driven connection structure 2 installed on one end of the guide plate body 1, a rotating structure 3 fixedly installed on the driven connection structure 2, a driven wheel 4 fixedly installed on the rotating structure 3, and a lubrication structure 5 provided on the rotating structure 3.

[0056] See appendix Figure 1 — Figure 3 As shown, in this utility model, the guide plate body 1 includes an outer plate 11 and an inner plate 12 disposed between two outer plates 11. The inner plate 12 and the two outer plates 11 together form a saw chain groove 13 for saw chain movement. The outer plate 11 and the inner plate 12 can be integrally formed or connected by welding. It should be noted that the guide plate body 1 is equipped with a lubricating oil guiding system, which is existing technology, that is, by delivering lubricating oil to the driven end of the guide plate body.

[0057] See appendix Figure 5 — Figure 8 As shown, in this utility model, the rotating structure 3 includes an inner support body 31, a rolling element 32 surrounding the outer wall of the inner support body 31, and an outer ring body 33 fitted on the rolling element 32. The height of the inner support body 31, the rolling element 32 and the outer ring body 33 is greater than the width of the saw chain groove 13. There are caps 34 at both ends of the inner support body 31, and the rolling element 32 is located between the two caps 34.

[0058] This invention limits the height of the inner support 31, the rolling element 32, and the outer ring 33 to be greater than the width of the saw chain groove 13. This increases the contact area of ​​the rolling element 32, thereby increasing the contact area between the rolling element 32 and the inner support 31, and between the rolling element 32 and the outer ring 33. The outer ring 33 can disperse the load before transferring it to the rolling element 32, preventing rapid wear of the rolling element 32 due to excessive load and extending the service life of the rotating structure 3. The cover 34 reduces the gap between the outer ring 33 and the inner support 31. The gaps are sealed to prevent dust and other impurities from entering and affecting the movement of the rolling element 32, ensuring that the rolling element 32 works smoothly. This utility model, through the setting of the outer ring body 33 and the inner support body 31, with the rolling element 32 set between the inner support body 31 and the outer ring body 33, ensures that the rolling element 32 only contacts the outer ring body 33 and the inner support body 31 in the entire rotating structure 3. The load on the driven wheel 4 will first be dispersed through the outer ring body 33 or the inner support body 31 before being transmitted to the rolling element 32, ensuring that the rolling element 32 wears evenly, thereby extending the service life of the rolling element 32.

[0059] It should be noted that the height of the rolling element 32 is no more than twice the width of the saw chain groove 13, thereby effectively preventing the rotating structure 3 from being directly exposed to the outside and ensuring that both ends of the rotating structure 3 are shielded by the driven connection structure 2 or the driven wheel 4; adjacent rolling elements 32 are in close contact with each other, and the height of the outer ring body 33 is equal to the height of the rolling element 32 and less than the height of the inner support body 31.

[0060] See appendix Figure 5 — Figure 8 As shown, in this utility model, the lubrication structure 5 includes a lubrication cavity 51 formed by an inner support body 31, an outer ring body 33 and a cover 34, and a first oil inlet hole 52 is provided in the outer ring body 33 and the lubrication cavity 51.

[0061] By providing the first oil inlet hole 52, this utility model allows the lubricating oil in the saw chain guide plate to be injected into the lubrication cavity 51, ensuring that there is lubricating oil in the lubrication cavity 51 and that the rolling element 32 can be lubricated.

[0062] See appendix Figure 3 and 4 As shown, in this utility model, the driven connection structure 2 includes a driven connection plate 21 and a driven mounting plate 22 integrally formed with the driven connection plate 21. The driven mounting plate 22 is provided with a through hole 23, and the outer wall of the outer ring body 33 is fixedly installed on the hole wall of the through hole 23.

[0063] The present invention provides an installation position for the rotating structure 3 by providing a through hole 23, so that the rotating structure 3 can be fixedly installed.

[0064] See appendixFigure 3 and Figure 4 As shown, in this utility model, the driven connecting plate 21 can be fixedly installed on the guide plate body 1 by riveting; the driven connecting plate 21 is provided with a plug plate 211, and a slot 212 adapted to the plug plate 211 is formed between the outer plate 11 and the inner plate 12. The thickness of the driven connecting plate 21 is greater than the thickness of the guide plate body 1.

[0065] This invention, through the riveting mechanism, allows the entire driven connection structure 2 to be replaced. Thus, when the driven connection structure 2 wears out, but the guide plate body 1 can still be used, only the driven connection structure 2 needs to be replaced, reducing costs. The insertion plate 211 and slot 212 facilitate the riveting and fixing of the driven connection plate 21, making it easy to replace the driven connection structure 2. By limiting the thickness of the driven connection plate 21, the strength of the driven connection plate 21 is increased.

[0066] It should also be noted that the driven connecting plate 21 can be integrally formed with the guide plate body 1, in which case the thickness of the driven connecting plate 21 can be the same as the thickness of the guide plate body 1.

[0067] See appendix Figure 7 — Figure 10 As shown, in this utility model, the driven wheel 4 is composed of two identical transmission circular plates 41. Both transmission circular plates 41 are mounted on the inner support body 31 and are located at both ends of the inner support body 31. The transmission circular plate 41 is provided with a mounting groove 42 corresponding to the rotating structure 3 at the middle position. The distance between the two transmission circular plates 41 is equal to the groove width of the saw chain groove 13.

[0068] By setting the mounting groove 42, this utility model avoids the rotating structure 3, so that the height of the rotating structure 3 can be greater than the width of the saw chain groove 13, ensuring that the load-bearing capacity of the rotating structure 3 is increased and normal installation can be carried out.

[0069] See appendix Figure 1 — Figure 10 As shown, the working principle of this utility model is as follows:

[0070] The guide plate body 1 has an oil groove to guide the lubricating oil to the driven end of the guide plate. The lubricating oil enters the lubrication chamber 51 through the first oil inlet hole 52 to lubricate the rolling element 32. This makes the rolling element 32 a space filled with lubricating oil, which can effectively reduce the friction of the rolling element 32 during rolling, reduce the wear of the rolling element 32, and extend the service life of the rolling element 32. As the lubricating oil continues to enter, the lubricating oil will flow out from the gap between the cover 34 and the outer ring body 33 to cool and lubricate the transmission disc 41. The lubricating oil will move along the transmission disc 41 due to the centrifugal force of rotation and be thrown onto the saw chain to lubricate and cool the saw chain.

[0071] Example 2

[0072] See appendix Figure 11 and Figure 12 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the outer ring 33, whose height is equal to the height of the inner support 31, is provided with a groove 331 corresponding to the cover 34.

[0073] In this embodiment, by increasing the height of the outer ring 33, the load-bearing capacity of the outer ring 33 is increased, allowing the outer ring 33 to distribute more load after being subjected to load. The groove 331 provides clearance for the cover 34, ensuring that the cover 34 will not protrude from the inner support 31 after installation, thus ensuring that the transmission disc 41 can be installed.

[0074] See appendix Figure 11 and Figure 12 As shown, it should be noted that an installation platform can be set on the inner support 31 to restrict the installation position of the cover 34.

[0075] Example 3

[0076] See appendix Figure 13 and Figure 14 As shown, the difference between this embodiment and the above embodiment is that in this embodiment, the minimum distance between the two transmission circular plates 41 is less than the width of the saw chain groove 13, and the outer side wall of the transmission circular plate 41 is provided with slots 43 at equal angles. The groove walls of the slots 43 on the two transmission circular plates 41 are parallel, and the maximum distance between the slots 43 on the two transmission circular plates 41 is equal to the width of the saw chain groove 13.

[0077] In this embodiment, the slot 43 is used to limit the center guide tooth of the saw chain, so that the saw chain drives the transmission plate 41 to rotate through the engagement of the slot 43. Compared with rotation through friction, this can reduce friction loss. By limiting the distance between the slots 43 on the two transmission plates 41, it is ensured that the saw chain can be locked and limited, so that the movement of the saw chain can drive the rotation of the transmission plate 41. By setting the two slots 43 in parallel, it is ensured that the slots on the two transmission plates 41 can engage to limit the same center guide tooth on the saw chain.

[0078] Example 4

[0079] See appendix Figure 15 and Figure 16 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the transmission circular plate 41 is provided with a thickening ring 413, and the slot 43 is provided on the outer ring wall of the thickening ring 413.

[0080] It should be noted that the driven mounting plate 22 is provided with a clearance groove corresponding to the thickening ring 413. In this embodiment, the thickening ring 413 reduces the distance between the two transmission circular plates 41, ensuring that the central guide tooth of the saw chain can cooperate with the transmission circular plate 41.

[0081] Example 5

[0082] See appendix Figure 17 and Figure 18 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the transmission circular plate 41 is provided with a plug 411, and the inner support body 31 is provided with a plug hole 412 corresponding to the plug 411.

[0083] In this embodiment, the position of the transmission plate 41 is limited before riveting by setting the insert 411 and the insertion hole 412, so as to ensure that the slots 43 on the two transmission plates 41 can correspond to each other and can cooperate with the saw chain. It should be noted that the insertion hole 412 can be a through hole. When the insert 411 on the two transmission plates 41 is inserted into the insertion hole 412, the insert 411 on the two transmission plates 41 is riveted together.

[0084] Example 6

[0085] See appendix Figure 19 and Figure 20 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the cover 34 is provided with a limiting structure 35 for limiting the rolling element 32. The limiting structure 35 includes a limiting part 351 provided on the cover 34 and a limiting groove 352 provided on the limiting part 351 that is adapted to the rolling element 32.

[0086] In this embodiment, the position of the rolling element 32 can be limited by the setting of the limiting structure 35, preventing the rolling element 32 from moving arbitrarily and ensuring that the rolling element 32 can be set at equal angular intervals, thereby reducing the friction of the rolling element 32.

[0087] Example 7

[0088] See appendix Figure 21 and Figure 22 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, a manual oil injection hole 414 is provided at the center of a transmission circular plate 41, and a sealing component 415 is provided in the manual oil injection hole 414. The sealing component 415 can be a rubber block or a plug bolt, etc., which can seal the manual oil injection hole 414 and can be disassembled; an oil storage tank 53 is provided on the inner support body 31, and a connecting hole 54 connected to the oil storage tank 53 is also provided on the inner support body 31.

[0089] In this embodiment, the manual oil injection hole 414 allows for manual injection of lubricating oil when the logging equipment lacks an oil supply unit. The sealing member 415 blocks the manual oil injection hole 414, preventing lubricating oil from flowing out and contaminating it with impurities. The oil storage tank 53 temporarily stores the lubricating oil, extending the lubrication time of the rolling element 32 and reducing the frequency of manual oil injection. The connecting hole 54 allows the lubricating oil in the oil storage tank 53 to flow out and contact the rolling element 32 for lubrication.

Claims

1. A saw chain guide assembly, characterized in that, It includes a guide plate body (1), a driven connection structure (2), a rotating structure (3), and a driven wheel (4); The guide plate body (1) includes an outer plate (11) and an inner plate (12) disposed between the two outer plates (11). The inner plate (12) and the two outer plates (11) together form a saw chain groove (13) for saw chain movement. The driven connection structure (2) is fixedly installed at one end of the guide plate body (1) to provide installation support for the rotating structure (3); The outer wall of the rotating structure (3) is fixedly installed on the driven connection structure (2). The rotating structure (3) includes an inner support body (31), a rolling element (32) surrounding the outer wall of the inner support body (31), and an outer ring body (33) fitted on the rolling element (32). The height of the inner support body (31), the rolling element (32) and the outer ring body (33) is greater than the width of the saw chain groove (13). The rotating structure (3) is provided with a lubrication structure (5). The driven wheel (4) is mounted on the inner support body (31), and the driven wheel (4) drives the inner support body (31) to rotate.

2. The saw chain guide assembly according to claim 1, characterized in that, The rotating structure (3) also includes caps (34) located at both ends of the inner support (31), and the rolling element (32) is located between the two caps (34); The height of the outer ring (33) is equal to or greater than the height of the rolling element (32); The height of the rolling element (32) is less than or equal to twice the width of the saw chain groove (13); The height of the outer ring (33) is equal to or less than the height of the inner support (31).

3. The saw chain guide assembly according to claim 2, characterized in that, The outer ring (33), whose height is equal to that of the inner support (31), has a groove (331) corresponding to the cover (34).

4. The saw chain guide assembly according to claim 2 or 3, characterized in that, The lubrication structure (5) includes a lubrication cavity (51) formed by an inner support (31), an outer ring (33) and a cover (34), and a first oil inlet (52) is provided in the outer ring (33) and the lubrication cavity (51). The rolling element (32) is located in the lubrication cavity (51).

5. The saw chain guide assembly according to claim 4, characterized in that, The inner support (31) is provided with an oil storage tank (53), and the inner support (31) is also provided with a connecting hole (54) that communicates with the oil storage tank (53).

6. The saw chain guide assembly according to claim 1, characterized in that, The driven connection structure (2) includes a driven connection plate (21) and a driven mounting plate (22) integrally formed with the driven connection plate (21). The driven mounting plate (22) is provided with a through hole (23), and the outer wall of the outer ring body (33) is fixedly installed on the hole wall of the through hole (23). The driven connecting plate (21) can be fixedly installed on the guide plate body (1) by riveting, or integrally formed with the guide plate body (1).

7. The saw chain guide assembly according to claim 6, characterized in that, The driven connecting plate (21) fixed by riveting is provided with a plug plate (211). The outer plate (11) and the inner plate (12) together form a slot (212) that is compatible with the plug plate (211). The thickness of the driven connecting plate (21) is greater than the thickness of the guide plate body (1).

8. The saw chain guide assembly according to claim 1, characterized in that, The driven wheel (4) is composed of two identical transmission circular plates (41). Both transmission circular plates (41) are mounted on the inner support body (31) and are located at both ends of the inner support body (31). The transmission circular plate (41) has a mounting groove (42) corresponding to the rotating structure (3) at the middle position. The distance between the two transmission circular plates (41) is equal to the width of the saw chain groove (13).

9. The saw chain guide assembly according to claim 8, characterized in that, The minimum distance between the two transmission circular plates (41) is less than the width of the saw chain groove (13). The outer side wall of the transmission circular plate (41) is provided with slots (43) at equal angles. The groove walls of the slots (43) on the two transmission circular plates (41) are parallel. The maximum distance between the slots (43) on the two transmission circular plates (41) is equal to the width of the saw chain groove (13). Alternatively, the transmission circular plate (41) is provided with a thickening ring (413), and the slot (43) is provided on the outer ring wall of the thickening ring (413); The transmission circular plate (41) is provided with a plug (411), and the inner support body (31) is provided with a plug hole (412) corresponding to the plug (411). One of the transmission circular plates (41) has an artificial oil injection hole (414) at its center, and a sealing element (415) is provided in the artificial oil injection hole (414).

10. The saw chain guide assembly according to claim 2, characterized in that, The rolling element (32) is arranged in a columnar shape, and adjacent rolling elements (32) are either in contact or spaced apart; The cover (34) is provided with a limiting structure (35) for limiting the rolling element (32). The limiting structure (35) includes an upper limit portion (351) provided on the cover (34) and a limiting groove (352) provided on the limiting portion (351) that is adapted to the rolling element (32).

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