A high-efficiency close-packed tooth saw chain

Abstract

The utility model discloses a high-efficiency close-packed tooth saw chain. It includes blades, transmission plates, chain plates for connection, and chain shafts for articulating the blades, transmission plates, and chain plates, which are staggered on the left and right. The spacing between the horizontal line L1 where the bottom end angle of the blade is located and the horizontal line L2 where the top end angle of the blade is located is a first height H1. The average pitch T of the chain is determined by the average value of the spacing between adjacent chain shafts, wherein the ratio between the first height H1 and the average pitch T of the chain is between 0.82 and 0.96. The utility model is suitable for a portable electric chain saw, and the relationship between the blade size and the chain pitch is reasonably optimized, thereby improving the cutting performance of the saw chain, extending the service life of the saw chain, reducing energy consumption, and increasing the endurance time of the chain saw.

Description

Technical Field

[0001] The utility model relates to the technical field of saw chains, in particular to a high-efficiency close-packed teeth saw chain. Background Art

[0002] Chain saws are needed to cut objects in many occasions in daily life. Chain saws are mostly used in forestry and are widely used in operations such as logging, pruning, and timber making. They are also an indispensable tool for timber making in lumberyards, sawing of railway sleepers, etc.

[0003] The performance of the chain (saw chain) in a chain saw determines the cutting efficiency of the chain saw. Among them, the relationship between the size of the chain blade and the chain pitch has a greater impact on the cutting efficiency. During the cutting operation, the blade of the existing common chain is easily stuck on the object to be cut, affecting the cutting efficiency. For this reason, the applicant has made improvements. Utility Model Content

[0004] The utility model aims at the deficiencies in the prior art and provides a high-efficiency close-packed teeth saw chain.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A high-efficiency close-packed tooth saw chain comprises blades, transmission plates, chain plates for connection, and chain shafts for articulating the blades, transmission plates, and chain plates, wherein the spacing between a horizontal line L1 where the bottom end angle of the blade is located and a horizontal line L2 where the top end angle of the blade is located is a first height H1, and an average pitch T of the chain is determined by an average value of the spacings between adjacent chain shafts, wherein a ratio between the first height H1 and the average pitch T of the chain is between 0.82 and 0.96.

[0007] In the above solution, preferably, the average pitch T is in the range of 9-9.5 mm.

[0008] In the above solution, preferably, the first height H1 has a value range of 7.8-8.6 mm.

[0009] In the above scheme, preferably, the distance between the horizontal line L3 where the center of the blade mounting hole is located and the horizontal line L2 where the top end corner of the blade is located is the second height H2, wherein the ratio between the second height H2 and the average pitch T of the chain is between 0.55-0.64.

[0010] In the above solution, preferably, the second height H2 has a value range of 5.2-5.8 mm.

[0011] In the above solution, preferably, a ratio between the first height H1 and the second height H2 is between 1.34 and 1.65.

[0012] In the above solution, preferably, the blade includes a first blade and a second blade, and the first blade and the second blade are alternately distributed on both sides of the transmission plate.

[0013] In the above solution, preferably, the first height of the first blade is equal to the first height of the second blade.

[0014] In the above solution, preferably, the top end angle of the first blade and the top end angle of the second blade are located on the same horizontal line.

[0015] The beneficial effects of the utility model are:

[0016] The utility model is suitable for a portable electric chain saw, and reasonably optimizes the relationship between the blade size and the chain pitch, thereby improving the cutting performance of the saw chain, extending the service life of the saw chain, reducing energy consumption, and increasing the endurance time of the chain saw. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the saw chain of the utility model.

[0018] Figure 2 It is a schematic diagram of the blade of the utility model. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods: Embodiment 1:

[0020] See also Figure 1 and Figure 2 A high-efficiency close-packed tooth saw chain comprises a blade, a transmission plate 1, a chain plate 2 and a chain shaft, wherein the blade comprises a first blade 3 and a second blade 4, and the first blade 3 and the second blade 4 are alternately distributed on both sides of the transmission plate 1.

[0021] In this embodiment, the first height of the first blade is equal to the first height of the second blade, and the top end angle of the first blade and the top end angle of the second blade are located on the same horizontal line.

[0022] The chain plate 2 plays a connecting role. The transmission plate 1, the chain plate 2 and the blade each have two mounting holes distributed on the left and right. After the corresponding mounting holes of the three are aligned, they are assembled into a chain through the chain shaft. After assembly, Figure 1 shown.

[0023] The relationship between blade size and chain pitch determines the cutting performance of the saw chain, e.g. Figure 1 , Figure 2As shown, the distance between the horizontal line L1 where the bottom end angle of the blade is located and the horizontal line L2 where the top end angle of the blade is located is a first height H1, and the average pitch T of the chain is determined by the average value of the distances between adjacent chain axes, wherein the distances between adjacent chain axes include T1 and T2, and the average pitch T=(T1+T2) / 2.

[0024] Specifically, the value range of the first height H1 is 7.8-8.6 mm, the value range of the average pitch is 9-9.5 mm, and the ratio of the first height H1 to the average pitch T of the chain is between 0.82-0.96. In this embodiment, the value of the first height H1 is specifically 7.8 mm, the specific value of the average pitch is 9.5 mm, and the specific value of the ratio of the first height H1 to the average pitch T of the chain is 0.82.

[0025] Furthermore, the distance between the horizontal line L3 where the center of the blade mounting hole is located and the horizontal line L2 where the top end angle of the blade is located is the second height H2, wherein the value range of the second height is 5.2-5.8 mm, and the ratio of the second height H2 to the average pitch T of the chain is between 0.55-0.64. In this embodiment, the specific value of the second height is 5.2 mm, and the specific value of the ratio of the second height H2 to the average pitch T of the chain is 0.55.

[0026] The ratio between the first height H1 and the second height H2 is between 1.34 and 1.65. With respect to the specific values ​​of the first height H1 and the second height H2 in this embodiment, the specific ratio between the two is 1.5. Embodiment 2:

[0027] See also Figure 1 and Figure 2 A high-efficiency close-packed tooth saw chain comprises a blade, a transmission plate 1, a chain plate 2 and a chain shaft, wherein the blade comprises a first blade 3 and a second blade 4, and the first blade 3 and the second blade 4 are alternately distributed on both sides of the transmission plate 1.

[0028] In this embodiment, the first height of the first blade is equal to the first height of the second blade, and the top end angle of the first blade and the top end angle of the second blade are located on the same horizontal line.

[0029] The chain plate 2 plays a connecting role. The transmission plate 1, the chain plate 2 and the blade each have two mounting holes distributed on the left and right. After the corresponding mounting holes of the three are aligned, they are assembled into a chain through the chain shaft. After assembly, Figure 1 shown.

[0030] The relationship between blade size and chain pitch determines the cutting performance of the saw chain, e.g. Figure 1 , Figure 2As shown, the distance between the horizontal line L1 where the bottom end angle of the blade is located and the horizontal line L2 where the top end angle of the blade is located is a first height H1, and the average pitch T of the chain is determined by the average value of the distances between adjacent chain axes, wherein the distances between adjacent chain axes include T1 and T2, and the average pitch T=(T1+T2) / 2.

[0031] Specifically, the value range of the first height H1 is 7.8-8.6 mm, the value range of the average pitch is 9-9.5 mm, and the ratio of the first height H1 to the average pitch T of the chain is between 0.82-0.96. In this embodiment, the value of the first height H1 is specifically 8.6 mm, the specific value of the average pitch is 9 mm, and the specific value of the ratio of the first height H1 to the average pitch T of the chain is 0.96.

[0032] Furthermore, the distance between the horizontal line L3 where the center of the blade mounting hole is located and the horizontal line L2 where the top end angle of the blade is located is the second height H2, wherein the value range of the second height is 5.2-5.8 mm, and the ratio of the second height H2 to the average pitch T of the chain is between 0.55-0.64. In this embodiment, the specific value of the second height is 5.8 mm, and the specific value of the ratio of the second height H2 to the average pitch T of the chain is 0.64.

[0033] The ratio between the first height H1 and the second height H2 is between 1.34 and 1.65. With respect to the specific values ​​of the first height H1 and the second height H2 in this embodiment, the specific ratio between the two is 1.48. Embodiment 3:

[0034] See also Figure 1 and Figure 2 A high-efficiency close-packed tooth saw chain comprises a blade, a transmission plate 1, a chain plate 2 and a chain shaft, wherein the blade comprises a first blade 3 and a second blade 4, and the first blade 3 and the second blade 4 are alternately distributed on both sides of the transmission plate 1.

[0035] In this embodiment, the first height of the first blade is equal to the first height of the second blade, and the top end angle of the first blade and the top end angle of the second blade are located on the same horizontal line.

[0036] The chain plate 2 plays a connecting role. The transmission plate 1, the chain plate 2 and the blade each have two mounting holes distributed on the left and right. After the corresponding mounting holes of the three are aligned, they are assembled into a chain through the chain shaft. After assembly, Figure 1 shown.

[0037] The relationship between blade size and chain pitch determines the cutting performance of the saw chain, e.g. Figure 1 , Figure 2As shown, the distance between the horizontal line L1 where the bottom end angle of the blade is located and the horizontal line L2 where the top end angle of the blade is located is a first height H1, and the average pitch T of the chain is determined by the average value of the distances between adjacent chain axes, wherein the distances between adjacent chain axes include T1 and T2, and the average pitch T=(T1+T2) / 2.

[0038] Specifically, the value range of the first height H1 is 7.8-8.6 mm, the value range of the average pitch is 9-9.5 mm, and the ratio of the first height H1 to the average pitch T of the chain is between 0.82-0.96. In this embodiment, the value of the first height H1 is specifically 8.41 mm, the specific value of the average pitch is 9.315 mm, and the specific value of the ratio of the first height H1 to the average pitch T of the chain is 0.9.

[0039] Furthermore, the distance between the horizontal line L3 where the center of the blade mounting hole is located and the horizontal line L2 where the top end angle of the blade is located is the second height H2, wherein the value range of the second height is 5.2-5.8 mm, and the ratio of the second height H2 to the average pitch T of the chain is between 0.55-0.64. In this embodiment, the specific value of the second height is 5.53 mm, and the specific value of the ratio of the second height H2 to the average pitch T of the chain is 0.59.

[0040] The ratio between the first height H1 and the second height H2 is between 1.34 and 1.65. With respect to the specific values ​​of the first height H1 and the second height H2 in this embodiment, the specific ratio between the two is 1.52.

[0041] The relevant numerical values ​​in the above embodiments are rounded off and the counting method is retained. The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A high-efficiency close-packed tooth saw chain, comprising left and right staggered blades, transmission plates, chain plates for connection, and chain shafts for articulating the blades, transmission plates, and chain plates, characterized in that: The distance between the horizontal line L1 where the bottom end angle of the blade is located and the horizontal line L2 where the top end angle of the blade is located is the first height H1, and the average pitch T of the chain is determined by the average value of the distances between adjacent chain axes, wherein the ratio between the first height H1 and the average pitch T of the chain is between 0.82-0.

96.

2. A high-efficiency close-packed tooth saw chain according to claim 1, characterized in that: The average pitch T ranges from 9 to 9.5 mm.

3. The high-efficiency close-packed tooth saw chain according to claim 1, characterized in that: The first height H1 has a value range of 7.8-8.6 mm.

4. A high-efficiency close-packed tooth saw chain according to any one of claims 1 to 3, characterized in that: The distance between the horizontal line L3 where the center of the blade mounting hole is located and the horizontal line L2 where the top end corner of the blade is located is a second height H2, wherein the ratio between the second height H2 and the average pitch T of the chain is between 0.55-0.

64.

5. A high-efficiency close-packed teeth saw chain according to claim 4, characterized in that: The second height H2 has a value range of 5.2-5.8 mm.

6. A high-efficiency close-packed teeth saw chain according to claim 4, characterized in that: A ratio between the first height H1 and the second height H2 is between 1.34 and 1.

65.

7. The high-efficiency close-packed tooth saw chain according to claim 1, characterized in that: The blade comprises a first blade and a second blade, and the first blade and the second blade are staggered and distributed on both sides of the transmission plate.

8. The high-efficiency close-packed teeth saw chain according to claim 7, characterized in that: The first height of the first blade is equal to the first height of the second blade.

9. A high-efficiency close-packed teeth saw chain according to claim 7 or 8, characterized in that: The top end angle of the first blade and the top end angle of the second blade are located on the same horizontal line.

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