Saw chain guide plate capable of supplying oil at fixed point

Abstract

The utility model provides a saw chain guide plate capable of supplying oil at a fixed point. The saw chain guide plate comprises a guide plate body and a guide plate head detachably installed on the guide plate body. Wherein an oil conveying structure is arranged between the guide plate head and the guide plate main body, a first oil way structure is arranged on the guide plate head, a second oil way structure is arranged on the guide plate main body, and the second oil way structure is communicated with the first oil way structure through the oil conveying structure. The first oil way structure and the second oil way structure are communicated through the oil conveying structure, so that lubricating oil on the guide plate body can flow into the guide plate head, a bearing and a chain wheel in the guide plate head can be lubricated, lubrication of the bearing and the chain wheel in the guide plate head is met, and the service life of the bearing and the service life of the chain wheel are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of saw chain guide plates, in particular to a saw chain guide plate capable of supplying oil at a fixed point. Background Art

[0002] A saw chain is an electric tool that uses a rotating chain saw blade for sawing. When the saw chain is running, the chain saw blade runs at high speed on the guide plate. The linear speed of the existing saw chain is generally about 14 meters per second. Due to the high-speed friction, the saw chain will generate a lot of heat. If the chain saw blade is not lubricated in time, the chain saw blade will easily overheat, causing damage to the chain and guide plate. Therefore, lubrication is a very important measure.

[0003] The guide bar lubricating oil currently used is injected into the guide bar groove from the oil hole at the tail of the guide bar body, and then the saw chain drives each lubricating surface. In this lubrication method, most of the lubricating oil is thrown off by the saw chain or flows away near the guide bar oil inlet, the lubricating oil utilization efficiency is very low, and the cooling effect is also very weak.

[0004] The publication number is CN113547588A, and the patent name is "A kind of electric saw guide plate with recyclable lubricating oil". It discloses that an oil retaining groove, an oil inlet and an oil outlet are arranged on the oil guide plate, so that the lubricating oil carried on the saw chain is blocked by the oil retaining groove and driven by air due to the different end faces of the oil inlet through the air pressure difference. Driven by air and gravity, the oil entering from the oil inlet flows into the oil outlet along the oil guide channel, thereby achieving lubrication of the saw chain and recycling of the lubricating oil, thereby solving the above-mentioned technical problems.

[0005] However, there are existing guide plates with replaceable guide bar heads, which are made of a whole piece of steel plate, and the guide bar heads are made by riveting or welding. When the saw chain is working, only a small amount of lubricating oil carried by the saw chain enters the guide bar head to lubricate the sprocket and bearing in the guide bar head, and this small amount of lubricating oil cannot meet the lubrication of the sprocket and bearing, resulting in serious wear of the sprocket and bearing in the guide bar head, which affects the service life of the guide bar head.

[0006] Therefore, how to lubricate the bearings and sprockets in the guide bar head when the saw chain is working and extend the service life of the guide bar head is a technical problem that needs to be solved urgently. Utility Model Content

[0007] The utility model aims to provide a saw chain guide plate capable of fixed-point oil supply, so as to solve the problem that the existing guide plates in the background technology cannot lubricate the bearings and sprockets in the guide plate head.

[0008] In order to achieve the above-mentioned purpose, the utility model proposes a saw chain guide plate with fixed-point oil supply, comprising a guide plate body and a guide plate head detachably mounted on the guide plate body; an oil delivery structure is provided between the guide plate head and the guide plate body, a first oil circuit structure is provided on the guide plate head, and a second oil circuit structure is provided on the guide plate body, and the second oil circuit structure is connected to the first oil circuit structure through the oil delivery structure.

[0009] Optionally, the guide plate body includes an oil guide part, which is arranged on two parallel side surfaces of the oil guide part, and the oil guide part is detachably connected to the guide plate head; wherein a guide plate groove for accommodating a saw chain is formed between the outer edge of the inner wall of the guide plate part and the outer peripheral wall of the oil guide part; and the second oil circuit structure is arranged on the oil guide part.

[0010] Optionally, the oil guide portion and the guide plate portion are an integrated structure.

[0011] Optionally, the oil guide portion and the guide plate portion are separate structures and are fixedly connected by welding or other fixing methods.

[0012] Optionally, the oil guide part is also provided with a plurality of oil inlets, a plurality of oil outlets, an oil separation groove and an oil storage groove; the oil inlet and the oil outlet are arranged opposite to each other, and the oil inlet and the oil outlet are connected with the guide plate groove, and the oil inlet and the oil outlet are connected with the oil storage groove through the oil separation groove; the oil storage groove is connected with the first oil circuit structure arranged on the guide plate head through the oil delivery structure.

[0013] Optionally, the second oil circuit structure includes a refueling port arranged at the tail of the oil guide part and located in the guide plate groove, and an oil guide groove arranged on the oil guide part; the slot of the oil guide groove is located at the front end of the oil guide part, and a seal is installed at the slot of the oil guide groove; the front end of the oil guide part protrudes from the guide plate part for detachable connection with the guide plate head; the oil guide groove is connected to the first oil circuit structure through the oil delivery structure.

[0014] Optionally, the guide plate head includes a side plate detachably mounted on the oil guide portion, a support ring mounted between the two side plates, a bearing sleeved on the support ring, and a sprocket mounted on the bearing; and the first oil circuit structure is arranged on the side plate.

[0015] Optionally, the first oil circuit structure includes a delivery groove arranged on the side plate, and an annular groove arranged on the side plate and connected to the delivery groove; the delivery groove is connected to the first oil circuit structure through the oil delivery structure.

[0016] Optionally, the annular groove is located within the orthographic projection of the bearing on the side plate, and the annular groove is concentrically arranged with the bearing.

[0017] Optionally, the conveying trough is filled with cotton thread.

[0018] Optionally, the oil delivery structure includes an oil delivery groove arranged on the oil guide part and connected with the oil guide groove, a limit block arranged on the side plate corresponding to the oil guide part, and a sealing strip with a T-shaped cross-section installed on the limit block; the end of the oil delivery groove is connected with the conveying groove.

[0019] Optionally, the first oil circuit structure includes an annular groove arranged on the inner side of the side plate, and an oil delivery through hole arranged on the side plate and connected to the annular guide groove.

[0020] Optionally, the oil delivery structure includes an external oil delivery pipe with one end mounted on the outer wall of the guide plate portion and connected to the oil guide groove, and the other end of the external oil delivery pipe is mounted on the side plate through an oil delivery through hole and connected to the reversing oil guide groove.

[0021] Optionally, a limiting ring is provided on the external oil delivery pipe, and a sealing sleeve is provided on the limiting ring; and avoidance grooves corresponding to the external oil delivery pipe are provided on the outer walls of the guide plate portion and the side plate.

[0022] Compared with the prior art, the utility model provides a saw chain guide plate capable of fixed-point oil supply, which has the following beneficial effects:

[0023] The saw chain guide plate capable of fixed-point oil supply connects the first oil circuit structure and the second oil circuit structure through an oil delivery structure, so that the lubricating oil on the guide plate body can flow into the guide plate head, and can lubricate the bearings and sprockets in the guide plate head. Compared with the existing lubricating oil carried by the saw chain, the present application lubricates the guide plate head through the oil circuit, thereby meeting the lubrication of the bearings and sprockets in the guide plate head and extending the service life of the bearings and sprockets. The lubricating oil entering the guide plate head is guided by the second oil circuit structure to flow to a fixed position, and the bearings and sprockets in the guide plate head are oiled at a fixed point, thereby further improving the lubrication effect on the bearings and sprockets. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the guide plate in Example 1 of the utility model.

[0025] Figure 2 This utility model Figure 1 A partial enlarged view of point A in the middle.

[0026] Figure 3 It is a structural schematic diagram of the side plate of Example 1 of the present utility model.

[0027] Figure 4 It is a structural schematic diagram of the sealing strip in Example 1 of the utility model.

[0028] Figure 5 It is a schematic diagram of the overall structure of the guide plate in Example 2 of the utility model.

[0029] Figure 6It is a structural schematic diagram of the external oil pipeline in Example 2 of the utility model.

[0030] Figure 7 It is a schematic diagram of the connection between the guide plate portion and the side plate in Example 2 of the utility model.

[0031] Figure 8 It is a structural schematic diagram of the side panel in Example 2 of the utility model.

[0032] Fig. 9 It is a schematic diagram of the overall structure of the guide plate in Example 3 of the utility model.

[0033] Fig.10 It is a schematic diagram of the overall structure of the guide plate portion in Example 3 of the present utility model.

[0034] Fig.11 It is a schematic diagram of the overall structure of the oil guide part in Example 3 of the utility model.

[0035] Markings in the figure: 1. Guide plate body; 11. Guide plate part; 111. Oil retaining groove; 12. Oil guide part; 121. Oil inlet; 122. Oil outlet; 123. Oil distribution groove; 124. Oil storage groove; 13. Guide plate groove; 2. Guide plate head; 21. Side plate; 22. Support ring; 23. Bearing; 24. Sprocket; 3. Oil delivery structure; 31. Oil delivery groove; 32. Limit block; 33. Sealing strip; 35. External oil delivery pipe; 351. Limit ring; 352. Sealing sleeve; 353. Avoidance groove; 4. First oil circuit structure; 41. Delivery groove; 42. Ring groove; 43. Oil delivery through hole; 5. Second oil circuit structure; 51. Oil filling port; 52. Oil guide groove; 53. Sealing element. DETAILED DESCRIPTION

[0036] The following is a detailed description in conjunction with the accompanying drawings and specific implementations. In the following description, many specific details are set forth to facilitate a full understanding of the present utility. However, the present utility can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present utility, so the present utility is not limited by the specific embodiments disclosed below.

[0037] A saw chain guide plate with fixed-point oil supply in the present application can be used for lubricating a detachable guide bar head in the guide bar, and of course can also be used in other similar application scenarios. A saw chain guide plate with fixed-point oil supply is described in detail below.

[0038] Example 1

[0039] See attached Figure 1 — Figure 4, which shows a structural schematic diagram of a preferred embodiment of a saw chain guide capable of fixed-point oil supply in the present application. The saw chain guide capable of fixed-point oil supply comprises a guide plate body 1, a guide plate head 2 detachably mounted on the guide plate body 1; wherein an oil delivery structure 3 is provided between the guide plate head 2 and the guide plate body 1, a first oil path structure 4 is provided on the guide plate head 2, and a second oil path structure 5 is provided on the guide plate body 1, wherein the second oil path structure 5 is connected to the first oil path structure 4 through the oil delivery structure 3.

[0040] The utility model arranges the second oil circuit structure 5 on the guide bar body, so that when the saw chain is working, the lubricating oil can lubricate and cool the saw chain, thereby extending the service life of the saw chain; through the arrangement of the first oil circuit structure, the lubricating oil entering the guide bar head 2 is guided, so that the lubricating oil can be supplied to the bearing 23 and the sprocket 24 at a fixed point, lubricating and cooling the bearing 23, the sprocket 24 and the like in the guide bar head 2, extending the service life of the bearing 23 and the sprocket 24, extending the service life of the guide bar head 2, reducing the number of replacements of the guide bar head 2 under the same use conditions, reducing the time spent on replacing the guide bar head 2, and improving work efficiency; through the arrangement of the oil delivery structure 3, the second oil circuit structure 5 is connected with the first oil circuit structure 4, so that the lubricating oil in the second oil circuit structure 5 can smoothly enter the first oil circuit structure 4, ensuring that the lubricating oil can lubricate the guide bar head 2, and extending the service life of the guide bar head 2.

[0041] See attached Figure 1 — Figure 4 As shown, in the utility model, the guide plate body 1 includes an oil guide portion 12, a guide plate portion 11 arranged on two parallel side surfaces of the oil guide portion 12, and the oil guide portion 12 is detachably connected to the guide plate head 2; wherein a guide plate groove 13 for accommodating a saw chain is formed between the outer edge of the inner wall of the guide plate portion 11 and the outer peripheral wall of the oil guide portion 12; and the second oil path structure 5 is arranged on the oil guide portion 12.

[0042] See attached Figure 1 — Figure 4 As shown, in the utility model, the second oil circuit structure 5 includes a refueling port 51 arranged at the tail of the oil guide portion 12 and located in the guide plate groove 13, and an oil guide groove 52 arranged on the oil guide portion 12; the notch of the oil guide groove 52 is located at the front end of the oil guide portion 12, and a seal 53 is installed at the notch of the oil guide groove 52; the front end of the oil guide portion 12 protrudes from the guide plate portion 11 for detachable connection with the guide plate head 2; the oil guide groove 52 is connected to the first oil circuit structure 4 through the oil delivery structure 3.

[0043] The utility model is used for adding lubricating oil through the setting of the oil filling port 51; the added lubricating oil is guided by the setting of the oil guide groove 52 so that it can flow to the guide plate head 2; the opening of the oil guide groove 52 is sealed by the setting of the sealing member 53 to prevent the lubricating oil from directly flowing to the bolt connection between the guide plate body 1 and the guide plate head 2, thereby avoiding the leakage of lubricating oil at the bolt connection; it should be particularly noted that the sealing member 53 penetrates into the oil guide groove 52, and one end face of the sealing member 53 close to the opening of the oil guide groove 52 contacts with the bolt for connecting the guide plate body 1 and the guide plate head 2, and is used to abut against the guide plate body 1 through the bolt to prevent the sealing member 53 from separating from the oil guide groove 52.

[0044] See attached Figure 1 — Figure 4 As shown, in the utility model, the guide plate head 2 includes a side plate 21 detachably mounted on the oil guide portion 12, a support ring 22 mounted between the two side plates 21, a bearing 23 mounted on the support ring 22, and a sprocket 24 mounted on the bearing 23; the first oil circuit structure 4 is arranged on the side plate 21.

[0045] The utility model provides an installation position for the bearing 23 and provides support for the sprocket 24 through the setting of the support ring 22; through the setting of the bearing 23, the friction between the sprocket 24 and the support ring 22 is reduced, so that the rotation of the sprocket 24 is smoother; through the setting of the conveying groove 41, the lubricating oil entering the guide head 2 is guided so that the lubricating oil can contact the bearing 23 and the sprocket 24, lubricate and cool the bearing 23 and the sprocket 24, thereby extending the service life of the bearing 23 and the sprocket 24; it should be particularly noted that a sealing strip is provided on one of the side plates 21, and the sealing strip is provided with a groove, and a sealing strip is also provided on the other side plate 21, and the sealing strip is provided with a protrusion corresponding to the groove, and the sealing strips on the two side plates 21 are distributed on both sides along the conveying groove 41, guide the lubricating oil, reduce the loss of lubricating oil between the two side plates 21, so that more lubricating oil can be directly delivered to the bearing 23 and the sprocket 24 at a fixed point, and further enhance the lubrication effect on the bearing 23 and the sprocket 24.

[0046] See attached Figure 1 — Figure 4 As shown, in the utility model, the first oil circuit structure 4 includes a conveying groove 41 arranged on the side plate 21, and the conveying groove 41 is connected to the first oil circuit structure 4 through the oil conveying structure 3; the annular groove 42 is located in the positive projection of the bearing 23 on the side plate 21, and the annular groove 42 is concentrically arranged with the bearing 23; the conveying groove 41 is filled with cotton thread.

[0047] The utility model can guide the lubricating oil through the conveying groove 41, and can accurately supply oil to the bearing 23 and the sprocket, thereby extending the service life of the bearing 23 and the sprocket 24; the cotton thread is set, so that the lubricating oil can be absorbed and guided, that is, the lubricating oil is absorbed through the capillary principle of the cotton thread, and the lubricating oil is moved along the conveying groove 41. It should be particularly noted that the cotton thread does not contact the sprocket 24, that is, the cotton thread is not filled in the moving area of ​​the sprocket 24. At the same time, the cotton thread can be fixed by hot melt adhesive or other methods.

[0048] See attached Figure 1 — Figure 4 As shown, in the utility model, the oil delivery structure 3 includes an oil delivery groove 31 arranged on the oil guide portion 12 and connected to the oil guide groove 52, a limit block 32 arranged on the side plate 21 and corresponding to the oil guide portion 12, and a sealing strip 33 with a T-shaped cross-section installed on the limit block 32; the end of the oil delivery groove 31 is connected to the delivery groove 41.

[0049] The utility model transfers the lubricating oil in the oil storage tank 124 by setting the oil delivery groove 31; by setting the limit block 32 and cooperating with the sealing strip 33, the notch of the oil delivery groove 31 can be shielded to prevent the lubricating oil from spraying out directly, reduce the flow rate of the lubricating oil, make the lubricating oil contact with the cotton thread, and guide and transport the lubricating oil by the capillary principle of the cotton thread.

[0050] Example 2

[0051] See attached Figure 5 — Figure 8 As shown, the difference between this embodiment and embodiment 1 is that the oil delivery structure 3 includes an external oil delivery pipe 35, one end of which is installed on the outer wall of the guide plate portion 11 and communicated with the oil guide groove 52, and the other end of the external oil delivery pipe 35 is installed on the side plate 21 through the oil delivery through hole 43 and communicated with the annular groove 42; a limit ring 351 is provided on the external oil delivery pipe 35, and a sealing sleeve 352 is provided on the limit ring 351; and an avoidance groove 353 corresponding to the external oil delivery pipe 35 is provided on the outer walls of the guide plate portion 11 and the side plate 21.

[0052] Compared with the above-mentioned embodiments, the present embodiment can directly deliver lubricating oil to the bearing 23 area through the external oil delivery pipe 35 to lubricate the bearing 23 .

[0053] Example 3

[0054] See attached Fig. 9 — Fig.11As shown, the difference between this embodiment and the above-mentioned embodiment lies in that the oil guide portion 12 and the guide plate portion 11 are split structures, that is, the guide plate body 1 is a three-in-one guide plate, and the oil guide portion 12 is also provided with a plurality of oil inlets 121, a plurality of oil outlets 122, an oil separation groove 123 and an oil storage groove 124; the oil inlet 121 and the oil outlet 122 are arranged opposite to each other, and the oil inlet 121 and the oil outlet 122 are connected with the guide plate groove 13, and the oil inlet 121 and the oil outlet 122 are connected with the oil storage groove 124 through the oil separation groove 123; the oil storage groove 124 is connected with the first oil path structure 4 arranged on the guide plate head 2 through the oil delivery structure 3; and an oil retaining groove 111 is provided on the inner wall of the guide plate portion 11 corresponding to the oil inlet 121 and the oil outlet 122.

[0055] It should be particularly noted in the above technical content that the coordination and specific structure of the guide bar body 1 and the second oil circuit structure 5 of the present application have been disclosed in the patent with publication number CN113547588A, and the patent name is a kind of electric saw guide bar with recyclable lubricating oil; the guide bar body 1 and the second oil circuit structure 5 of the present application are also disclosed in the patent with publication number CN113580273B, and the patent name is a kind of electric chain saw assembly, so the present utility model will not be repeated here; the difference between the present utility model and the above two patents is that the first oil circuit structure 4 and the oil delivery structure 3 in the present utility model transport and guide the lubricating oil so that the lubricating oil can be transported to the guide bar head 2, thereby extending the service life of the replaceable guide bar head 2.

[0056] The above embodiments are intended to illustrate the present application, not to limit the present application. Any solution that is a simple transformation of the present application falls within the protection scope of the present application.

Claims

1. A saw chain guide capable of fixed-point oil supply, comprising a guide bar body (1), and a guide bar head (2) detachably mounted on the guide bar body (1); characterized in that: An oil delivery structure (3) is provided between the guide plate head (2) and the guide plate body (1); a first oil path structure (4) is provided on the guide plate head (2); a second oil path structure (5) is provided on the guide plate body (1); the second oil path structure (5) is connected to the first oil path structure (4) via the oil delivery structure (3); The guide bar body (1) comprises an oil guide portion (12), a guide bar portion (11) arranged on two parallel side surfaces of the oil guide portion (12), and the oil guide portion (12) is detachably connected to the guide bar head (2); wherein a guide bar groove (13) for accommodating a saw chain is formed between an outer edge of an inner wall of the guide bar portion (11) and an outer peripheral wall of the oil guide portion (12); and the second oil path structure (5) is arranged on the oil guide portion (12).

2. The saw chain guide capable of fixed-point oil supply according to claim 1, characterized in that: The second oil circuit structure (5) comprises an oil filling port (51) arranged at the rear of the oil guide portion (12) and located in the guide plate groove (13), and an oil guide groove (52) arranged on the oil guide portion (12); the groove opening of the oil guide groove (52) is located at the front end of the oil guide portion (12), and a sealing member (53) is installed at the groove opening of the oil guide groove (52); the front end of the oil guide portion (12) protrudes from the guide plate portion (11) for detachable connection with the guide plate head (2); and the oil guide groove (52) is connected to the first oil circuit structure (4) via the oil delivery structure (3).

3. The saw chain guide capable of fixed-point oil supply according to claim 2, characterized in that: The guide plate head (2) comprises a side plate (21) detachably mounted on the oil guide portion (12), a support ring (22) mounted between the two side plates (21), a bearing (23) sleeved on the support ring (22), and a sprocket (24) mounted on the bearing (23); the first oil circuit structure (4) is arranged on the side plate (21).

4. The saw chain guide capable of fixed-point oil supply according to claim 3, characterized in that: The first oil circuit structure (4) comprises a delivery groove (41) arranged on the side plate (21), and an annular groove (42) arranged on the side plate (21) and connected to the delivery groove (41); the delivery groove (41) is connected to the first oil circuit structure (4) via the oil delivery structure (3).

5. The saw chain guide capable of fixed-point oil supply according to claim 4, characterized in that: The annular groove (42) is located within the orthographic projection of the bearing (23) on the side plate (21), and the annular groove (42) is arranged concentrically with the bearing (23); The conveying trough (41) is filled with cotton thread.

6. The saw chain guide capable of fixed-point oil supply according to claim 2 or 4, characterized in that: The oil delivery structure (3) comprises an oil delivery groove (31) arranged on the oil guide portion (12) and connected to the oil guide groove (52), a limit block (32) arranged on the side plate (21) and corresponding to the oil guide portion (12), and a sealing strip (33) with a T-shaped cross section mounted on the limit block (32); the end of the oil delivery groove (31) is connected to the delivery groove (41).

7. The saw chain guide capable of fixed-point oil supply according to claim 3, characterized in that: The first oil path structure (4) comprises an annular groove (42) arranged on the inner side of the side plate (21), and an oil delivery through hole (43) arranged on the side plate (21) and connected to the annular groove (42); the annular groove (42) and the bearing (23) are arranged concentrically.

8. The saw chain guide capable of fixed-point oil supply according to claim 2 or 7, characterized in that: The oil delivery structure (3) comprises an external oil delivery pipe (35) with one end mounted on the outer wall of the guide plate portion (11) and connected to the oil guide groove (52); the other end of the external oil delivery pipe (35) is mounted on the side plate (21) through an oil delivery through hole (43) and connected to the annular groove (42).

9. The saw chain guide capable of fixed-point oil supply according to claim 8, characterized in that: The external oil delivery pipe (35) is provided with a limit ring (351), and the limit ring (351) is provided with a sealing sleeve (352); and the outer walls of the guide plate portion (11) and the side plate (21) are both provided with avoidance grooves (353) corresponding to the external oil delivery pipe (35).

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