High-efficiency saw chain

Abstract

High-efficiency saw chain, characterized in that it comprises drive links (100) for power transmission, connecting links (200) for connecting adjacent drive links (100), left cutting links (300) and right cutting links (400) which have the same structure and are offset from the connecting links (200), wherein the right cutting links (400) and the left cutting links (300) are arranged offset on both sides of the drive links (100); A first oil storage structure (500) for storing lubricating oil or a second oil storage structure (600) is provided on the drive link (100), wherein the lubricating oil stored in the first oil storage structure (500) and the second oil storage structure (600) is discharged by centrifugal force to lubricate and cool the saw chain; A rivet hole (120) is provided on the drive link (100); The first oil storage structure (500) and the second oil storage structure (600) comprise an oil storage block (530) with capillary action.

Description

Technical field

[0001] The present application relates to the technical field of saw chains and in particular a high-efficiency saw chain. Background technology

[0002] In forestry, wood processing, and other industries, the saw chain is a common cutting tool. Saw chains typically consist of four parts: the cutting link, the center guide tooth, the connecting link, and the rivet. The cutting link is further divided into a left-hand cutting link and a right-hand cutting link.

[0003] In the field of saw chain technology, the Chinese patent CN221134309U describes how the interaction of the reservoir channel and the oil guide channel allows lubricating oil to be stored and channeled. During operation, a small amount of lubricating oil is drawn onto the saw chain via the oil guide channel under the influence of inertia, thus reducing chain friction. However, this represents a passive and crude method of oil storage. After prolonged operation, the lubricating oil in these channels is quickly depleted by gravity and centrifugal force and cannot provide continuous lubrication throughout the entire cutting cycle, thereby impairing the saw chain's cutting efficiency.

[0004] Therefore, it is necessary to provide a device that can supply the lubricating oil slowly and continuously in order to increase the sawing efficiency of the saw chain. Content of the utility model

[0005] The purpose of this utility model is to propose a highly efficient saw chain to solve the problem that existing saw chains in the technical background cannot provide permanent lubrication throughout the entire cutting cycle, which impairs the sawing efficiency of the saw chain.

[0006] To achieve the aforementioned purpose, the present utility model proposes a highly efficient saw chain comprising drive links for power transmission, connecting links for joining adjacent drive links, left cutting links and right cutting links having the same structure and offset from the connecting links, wherein the right cutting links and the left cutting links are offset on both sides of the drive links; a first oil storage structure for storing lubricating oil or a second oil storage structure is provided on the drive link, wherein the lubricating oil stored in the first oil storage structure and the second oil storage structure is discharged by centrifugal force to lubricate and cool the saw chain.

[0007] Optionally, a recess and a rivet hole are provided on the drive link.

[0008] Optionally, the drive links with the first oil storage structure and the drive links with the second oil storage structure are arranged offset.

[0009] Optionally, the first oil storage structure and the second oil storage structure have the same structure and are each arranged on two parallel planes of the drive element.

[0010] Optionally, the first oil storage structure and the second oil storage structure each comprise an oil channel arranged on the drive member and an oil storage channel connected to the oil channel, wherein the oil storage block is arranged in the oil storage channel.

[0011] Optionally, the oil storage block has a capillary action, and the oil storage block is made of sintered porous metal.

[0012] Optionally, the opening of the oil channel is located at the depression.

[0013] Optionally, the oil channel includes a main oil channel and a secondary oil channel connected to the main oil channel, with the secondary oil channel being connected to the oil storage channel.

[0014] Optionally, the width of the oil channel can be reduced from the inlet opening to the oil storage channel.

[0015] Optionally, the oil channel is a ring channel and is designed concentric to the rivet hole.

[0016] Optionally, the mean distance between adjacent rivet holes is the mean pitch, the drive member and the left cutting member or the drive member and the right cutting member define the maximum height, the left cutting member and the right cutting member determine the maximum thickness, and the product of the mean pitch, the maximum height, and the maximum thickness is greater than 400 mm. 3 and smaller than 478 mm 3 .

[0017] Optionally, the minimum value for the center pitch is 6.31 mm and the maximum value is 7.62 mm. Optionally, the minimum value for the maximum height is 12.34 mm and the maximum value is 13.17 mm. Optionally, the maximum thickness is 4.76 mm.

[0018] Compared to the state of the art, the utility model offers a highly efficient saw chain with the following advantages: The high-efficiency saw chain incorporates an oil reservoir block with capillary action to store and retain lubricating oil. This prevents the oil from being flung off completely due to centrifugal force during the saw chain's rotation. As a result, the effective lubrication time after a single oil change is extended, frictional resistance is reduced, and jamming is prevented, thus ensuring the saw chain's cutting performance. Description of the drawings Fig. Figure 1 shows a schematic representation of the overall structure of the utility model. Fig. Figure 2 shows a schematic representation of the overall structure of the present utility model from a different view. Fig. Figure 3 shows a schematic representation of the drive element and the first oil storage structure of the present utility model. Fig. Figure 4 shows a schematic representation of the drive element and the second oil storage structure of the present utility model. Fig. Figure 5 shows a main view of the saw chain of the present utility model. Fig. Figure 6 shows a side view of the saw chain of the present utility model. Fig. Figure 7 shows a schematic representation of the drive element and the first oil storage structure in embodiment 2 of the present utility model. Fig. Figure 8 shows a schematic representation of the drive element and the second oil storage structure in embodiment 2 of the present utility model. Fig. Figure 9 shows a schematic representation of the structure of the cutting element in embodiment 3 of the present utility model.

[0019] Designated in the drawings: 100-drive link; 110-recess; 120-rivet hole; 200-connecting link; 300-left cutting link; 400-right cutting link; 500-first oil reservoir structure; 510-oil channel; 511-main oil channel; 512-secondary oil channel; 520-oil reservoir channel; 521-oil guide channel; 530-oil reservoir block; 600-second oil reservoir structure. Detailed descriptions

[0020] The following section provides a more detailed description in conjunction with the accompanying drawings and specific embodiments. Numerous specific details are given in the following description to enable a complete understanding of this utility model. However, this utility model can also be implemented in many other forms that differ from the one described here, and those skilled in the art can make similar extensions without deviating from the essence of this utility model; therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] The following section explains a highly efficient saw chain in more detail.

[0022] With reference to the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. Figure 6 shows a schematic representation of a preferred embodiment of a high-efficiency saw chain according to the present application. The saw chain comprises drive links 100 for power transmission, connecting links 200 for connecting adjacent drive links 100, left cutting links 300 and right cutting links 400, which have the same structure and are offset from the connecting links 200, wherein the right cutting links 400 and the left cutting links 300 are arranged offset on both sides of the drive links 100; wherein a first oil storage structure 500 for storing lubricating oil or a second oil storage structure 600 is provided on the drive link, and the lubricating oil stored in the first oil storage structure and the second oil storage structure is discharged by centrifugal force to lubricate and cool the saw chain.

[0023] In the present application, the lubricating oil is stored by providing the first oil storage structure 500 and the second oil storage structure 600, so that during the rotating sawing process of the saw chain, the lubricating oil can flow out due to the centrifugal force acting on the drive link 100 and lubricate the saw chain. When the lubricating oil flows to the left cutting link 300 and the right cutting link 400, the friction occurring during sawing between the left cutting link 300 and the right cutting link 400 can be reduced, thus enabling a smooth sawing process. The lubricating oil can also cool the left cutting link 300 and the right cutting link 400, thereby extending the service life of the saw chain, reducing the frequency of repairs and replacements, and thus increasing production efficiency.

[0024] With reference to the Fig. 1, Fig. 2, Fig. 3 to Fig. In the present application, the first oil storage structure 500 and the second oil storage structure 600 have the same structure and are each arranged offset on two mutually parallel planes of the drive element 100. Specifically, the first oil storage structure 500 and the second oil storage structure 600 are provided on the adjacent drive elements 100, respectively, and the provided planes are two parallel planes of the drive element 100, wherein the two parallel planes are not coplanar, i.e., one plane faces the left cutting element 300 and the other plane faces the right cutting element 400, so that lubricating oil can be provided for both the left cutting element 300 and the right cutting element 400 and normal lubrication is ensured.

[0025] With reference to the Fig. 1, Fig. 2, Fig. 3 to Fig. 4 In the present application, a recess 110 is provided on the lower part of the drive member 100, and a rivet hole 120 is provided on the drive member 100 for riveting to the connecting member 200, the left cutting member 300 and the right cutting member 400, wherein a rivet bolt is provided in the rivet hole 120, by means of which the drive member 100 is riveted to the connecting member 200 and to the cutting member.

[0026] With reference to the Fig. 1, Fig. 2, Fig. 3 to Fig. In the present application, 4 comprises both the first oil storage structure 500 and the second oil storage structure 600, an oil channel 510 connected to the recess 110, an oil storage channel 520 connected to the oil channel 510, and an oil storage block 530 arranged in the oil storage channel 520 with a capillary action; wherein the oil storage channel 520 is an annular channel and is provided concentrically to the rivet hole 120, and the oil storage block 530 consists of sintered porous metal.

[0027] In the present application, the provision of the oil storage channel 520 provides a storage space for lubricating oil, so that the lubricating oil can be stored and is provided during the subsequent sawing process; by forming the oil storage block 530 from sintered porous metal, the oil storage block 530 has a capillary effect, and the lubricating oil that has entered the oil storage block 530 experiences capillary resistance.When a centrifugal force is generated during the operation of the saw chain, the capillary resistance can retain the lubricating oil, thereby reducing the amount of lubricating oil flung out by the centrifugal force with each rotation of the saw chain. This extends the lubrication time of the lubricating oil and ensures that the saw chain can be lubricated throughout the entire sawing cycle, reduces friction during sawing, and prevents jamming during sawing, thus ensuring the sawing performance of the saw chain.

[0028] With reference to the Fig. 1, Fig. 2, Fig. 3 to Fig. In the present application, the oil channel 510 comprises a main oil channel 511, the inlet opening of which is provided at the recess 110, and a secondary oil channel 512 connected to the main oil channel 511. The number of secondary oil channels 512 corresponds to the number of oil storage channels 520, and the channel width of the main oil channel 511 gradually decreases from the inlet opening towards the secondary oil channel 512, and the channel width of the secondary oil channel 512 gradually decreases from the end connected to the main oil channel 511 to the end connected to the oil storage channel 520, thereby ensuring that the lubricating oil enters the oil storage channel 520 at sufficient pressure. Furthermore, in conjunction with the existing guide rail of the saw chain, an oil guide structure, such as that shown, for example, in the existing Chinese patent with application number CN202121389707, can be used.8 is disclosed, by means of which the lubricating oil can be added via the oil channel 510 into the oil storage channel 520 in order to ensure the lubricating oil content in the oil storage channel 520.

[0029] With reference to the Fig. 5 and Fig. In the present application, the mean distance between the same rivet holes of adjacent drive members 100 is the mean pitch A / 2, and the drive member 100 and the left cutting member 300 or the drive member 100 and the right cutting member 400 form the maximum height B, and the left cutting member 300 and the right cutting member 400 determine the maximum thickness C. The product of the mean pitch A / 2, the maximum height B, and the maximum thickness C is greater than 400 mm. 3 and smaller than 478 mm 3; where the minimum value of the mean pitch A / 2 is 6.31 mm and the maximum value is 7.62 mm; the minimum value of the maximum height B is 12.34 mm and the maximum value is 13.17 mm; the maximum thickness C is 4.76 mm.

[0030] With reference to the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. 6. In the present application, the release process of the lubricating oil from the oil storage structure is carried out as follows: The lubricating oil is added to the saw chain, which is then mounted on the chainsaw and started. During the sawing process, the lubricating oil in the oil reservoir block 530 of the first oil reservoir structure 500 and the second oil reservoir structure 600 moves outwards to the periphery of the saw chain due to centrifugal force. Simultaneously, the lubricating oil experiences capillary resistance through the oil reservoir block 530, so that initially only the lubricating oil at the periphery is ejected. This oil comes into contact with the connecting link 200, the left cutting link 300, and the right cutting link 400, lubricating and cooling them. It also reduces friction between the left and right cutting links, preventing jamming during the sawing process and thus ensuring the saw chain's cutting performance. Example 2

[0031] With reference to the Fig. 7 and Fig. 8 This embodiment differs from the previously described embodiments in that, in the present embodiment, an oil guide channel 521 is provided on the drive member 100, connected to the oil storage channel 520, with the other end of the oil guide channel 521 facing the top of the drive member 100 and the channel depth of the oil guide channel 521 gradually decreasing. It is particularly noteworthy that the channel length of the oil guide channel 521 can be lengthened or shortened up to the top of the drive member 100.

[0032] By providing the oil guide channel 521 in this embodiment, the flow direction of the lubricating oil is directed so that the lubricating oil flows to the top of the drive element 100 and comes into contact with the left cutting element 300 and the right cutting element 400, thereby lubricating and cooling the left cutting element 300 and the right cutting element 400. Example 3

[0033] With reference to the Fig. 9 This embodiment differs from the previously described embodiments in that a chamfer 310 is provided at the upper ends of the left cutting link 300 and the right cutting link 400 in the present embodiment, which reduces the weight of the left cutting link 300 and the right cutting link 400. Furthermore, if the cutting link jams, the operator can directly move the entire chainsaw so that the saw chain comes into contact with the workpiece in the opposite direction. The chamfer 310 reduces frictional interference and facilitates the removal of the chainsaw.

[0034] The exemplary embodiments described above serve to illustrate the present application and do not constitute a limitation of the present application. Any simple modification of the present application falls within the scope of protection of the application.

[0035] The present utility model proposes a highly efficient saw chain comprising drive links for power transmission, connecting links for joining adjacent drive links, left cutting links and right cutting links having the same structure and offset from the connecting links, wherein the right cutting links and the left cutting links are offset on both sides of the drive links; a first oil storage structure for storing lubricating oil or a second oil storage structure is provided on the drive link, wherein the lubricating oil stored in the first oil storage structure and the second oil storage structure is discharged by centrifugal force to lubricate and cool the saw chain.In the present application, the lubricating oil is stored and retained by providing an oil reservoir block, thus preventing the lubricating oil from being completely flung off by centrifugal force during the rotation of the saw chain. This extends the effective lubrication time after a single addition of oil, reduces frictional resistance, and prevents jamming, thereby ensuring the saw chain's cutting performance. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 221134309U

[0003] CN 202121389707.8

[0028]

Claims

[1] High-efficiency saw chain, characterized by , that it comprises drive links (100) for power transmission, connecting links (200) for connecting adjacent drive links (100), left cutting links (300) and right cutting links (400) which have the same structure and are offset from the connecting links (200), wherein the right cutting links (400) and the left cutting links (300) are arranged offset on both sides of the drive links (100); A first oil storage structure (500) for storing lubricating oil or a second oil storage structure (600) is provided on the drive link (100), wherein the lubricating oil stored in the first oil storage structure (500) and the second oil storage structure (600) is discharged by centrifugal force to lubricate and cool the saw chain; A rivet hole (120) is provided on the drive link (100); The first oil storage structure (500) and the second oil storage structure (600) comprise an oil storage block (530) with capillary action. [2] High-efficiency saw chain according to claim 1, characterized by , that the first oil storage structure (500) and the second oil storage structure (600) are structurally identical and are each arranged on two parallel planes of the drive element (100). [3] High-efficiency saw chain according to claim 1, characterized by , that the drive links (100) are offset from the first oil storage structure (500) and the drive links (100) are offset from the second oil storage structure (600). [4] High-efficiency saw chain according to claim 1, characterized by, that the first oil storage structure (500) and the second oil storage structure (600) each comprise an oil channel (510) arranged on the drive member (100) and an oil storage channel (520) connected to the oil channel (510), wherein the oil storage block (530) is arranged in the oil storage channel (520). [5] High-efficiency saw chain according to claim 4, characterized by , that a recess (110) is provided on the drive member (100), wherein the opening of the oil channel (510) is located at the recess (110); the oil channel (510) comprises a main oil channel (511) and a secondary oil channel (512) connected to the main oil channel (511), wherein the secondary oil channel (512) is connected to the oil storage channel (520). [6] High-efficiency saw chain according to claim 4, characterized by , that the width of the oil channel (510) decreases from the inlet opening to the oil storage channel (520). [7] High-efficiency saw chain according to claim 4, characterized by, that the oil storage channel (520) is an annular channel and is designed to be concentric to the rivet hole (120). [8] High-efficiency saw chain according to claim 1 or 4, characterized by , that the oil storage block (530) is made of sintered porous metal. [9] High-efficiency saw chain according to claim 1, characterized by , that the mean distance between adjacent rivet holes (120) is the mean pitch (A / 2), the drive member (100) and the left cutting member (300) or the drive member (100) and the right cutting member (400) form the maximum height (B), the left cutting member (300) and the right cutting member (400) determine the maximum thickness (C), and the product of the mean pitch (A / 2), the maximum height (B) and the maximum thickness (C) is greater than 400 mm 3 and smaller than 478 mm 3 is. [10] High-efficiency saw chain according to claim 9, characterized by, that the minimum value of the mean division (A / 2) is 6.31 mm and the maximum value is 7.62 mm; the minimum value of the maximum height (B) is 12.34 mm and the maximum value is 13.17 mm; the maximum thickness (C) is 4.76 mm.

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