Circular saw blade mounting structure

Abstract

The utility model discloses a circular saw blade installation structure which comprises a saw blade body and a fixing mechanism, the fixing mechanism comprises a driving shaft and a fixing nut, the tail end of the driving shaft is provided with external threads matched with the fixing nut, the saw blade body is installed on the driving shaft, and auxiliary heat dissipation mechanisms are arranged on the two sides of the saw blade body. The auxiliary heat dissipation mechanism comprises a first heat dissipation clamping plate and a second heat dissipation clamping plate, the first heat dissipation clamping plate is fixedly installed on the driving shaft, the second heat dissipation clamping plate is detachably installed on the side, away from the first heat dissipation clamping plate, of the saw blade body, and the first heat dissipation clamping plate comprises a first heat dissipation disc, a second heat dissipation disc and arc-shaped fan blades; the arc-shaped fan blades are fixedly installed between the first heat dissipation disc and the second heat dissipation disc. The circular saw blade has the advantages of being efficient in heat dissipation, improving stability and simplifying maintenance, and the problems of thermal deformation and material fatigue caused by heat accumulation of a traditional circular saw blade are solved.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, specifically to a circular saw blade mounting structure. Background Technology

[0002] In woodworking, metal cutting, and other industries requiring circular saw blades, the heat dissipation performance and stability of the blade are key factors affecting work efficiency and product quality. Traditional circular saw blade mounting structures typically focus only on securely fixing the saw blade to the drive shaft to ensure effective power transmission and operational safety. However, in practical applications, the heat accumulation caused by high-speed rotation often leads to an increase in the temperature of the saw blade body, resulting in thermal deformation or material fatigue. This not only reduces the lifespan of the saw blade but may also affect cutting accuracy. Furthermore, with prolonged operation, the fixing nut may loosen, causing the saw blade to wobble axially, further affecting cutting quality and increasing safety hazards.

[0003] Existing saw blade cooling methods mainly include natural cooling and external cooling systems. Natural cooling is limited by environmental conditions and the material and design of the saw blade itself, and often cannot effectively control the temperature rise. While external cooling systems can provide more effective cooling, their complex structure increases equipment costs and makes maintenance inconvenient. Therefore, a circular saw blade mounting structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a circular saw blade mounting structure that has the advantages of efficient heat dissipation, enhanced stability and simplified maintenance, and solves the problems of thermal deformation and material fatigue caused by heat accumulation in traditional circular saw blades.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circular saw blade mounting structure, including a saw blade body and a fixing mechanism, wherein the fixing mechanism includes a drive shaft and a fixing nut, the end of the drive shaft is provided with an external thread that mates with the fixing nut, the saw blade body is mounted on the drive shaft, and auxiliary heat dissipation mechanisms are provided on both sides of the saw blade body;

[0006] The auxiliary heat dissipation mechanism includes a first heat dissipation clamp and a second heat dissipation clamp. The first heat dissipation clamp is fixedly installed on the drive shaft, and the second heat dissipation clamp is detachably installed on the side of the saw blade body away from the first heat dissipation clamp. The first heat dissipation clamp includes a first heat dissipation plate, a second heat dissipation plate, and an arc-shaped fan blade. The arc-shaped fan blade is fixedly installed between the first heat dissipation plate and the second heat dissipation plate. An air outlet is provided at the center of the second heat dissipation plate.

[0007] As a preferred embodiment of the circular saw blade installation structure of this utility model, the side end face of the first heat dissipation clamp is provided with a positioning post, the side end face of the saw blade body is provided with a first positioning hole that slides with the positioning post, and the side end face of the second heat dissipation clamp is provided with a second positioning hole that mates with the positioning post.

[0008] As a preferred embodiment of the circular saw blade mounting structure of this utility model, both the first heat dissipation clamp and the second heat dissipation clamp are provided with annular flanges near the center of the saw blade body.

[0009] As a preferred embodiment of the circular saw blade mounting structure of this utility model, the first heat dissipation clamp and the second heat dissipation clamp are provided with filling columns that fit against the saw blade body on the side edge near the saw blade body.

[0010] As a preferred embodiment of the circular saw blade installation structure of this utility model, the arc-shaped fan blades are arranged in an equidistant circular array around the center of the first heat dissipation plate, and both the first heat dissipation clamp and the second heat dissipation clamp are made of aluminum alloy.

[0011] As a preferred embodiment of the circular saw blade mounting structure of this utility model, a groove is provided at the center of the end of the second heat dissipation clamp away from the saw blade body. A sliding plate and a spring are provided in the groove, and the sliding plate and the second heat dissipation clamp are elastically slidably connected by the spring.

[0012] In a preferred embodiment of the circular saw blade mounting structure of this utility model, the center of the first heat dissipation clamp is provided with a second shaft hole that is interference-fitted with the drive shaft, the center of the saw blade body is provided with a first shaft hole that is slidably connected with the drive shaft, and the second heat dissipation clamp is mounted on the drive shaft and slidably connected thereto.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses an auxiliary heat dissipation mechanism composed of a first heat dissipation clamp and a second heat dissipation clamp, combined with an internal arc-shaped fan blade and an air outlet design, to actively guide airflow circulation when the saw blade rotates, accelerating the dissipation of heat from the saw blade surface. The gap design of the annular flange further optimizes the airflow diffusion path, forming a dynamic heat dissipation cycle, effectively reducing the working temperature of the saw blade and reducing the risk of thermal deformation. At the same time, the edge filling column fits close to the saw blade body, providing axial support while assisting heat dissipation, suppressing saw blade swaying during cutting, and balancing heat dissipation efficiency and cutting stability.

[0015] 2. This utility model uses the sliding fit design of the positioning column and the first and second positioning holes to form a multi-stage transmission connection between the saw blade body, the second heat dissipation clamp, and the drive shaft. Even if the fixing nut is slightly loose, the positioning column can still ensure the continuity of power transmission and avoid sudden failure. The sliding groove and spring structure of the second heat dissipation clamp further optimize the clamping fault tolerance. When the nut is loose, the clamp and saw blade are kept in close contact through elastic compensation. The dual anti-loosening mechanism significantly improves the operational reliability of the equipment under complex working conditions.

[0016] 3. This utility model uses an interference fit between the first heat dissipation clamp and the drive shaft, while the saw blade body and the second heat dissipation clamp are detachably assembled through a sliding connection. This design ensures the stability of the core transmission components and allows the saw blade to be replaced without disassembling the overall heat dissipation mechanism, greatly simplifying the maintenance process. Combined with the lightweight heat dissipation components made of aluminum alloy, it reduces the impact of rotational inertia on the rotation speed and enables quick disassembly and assembly through standardized interface design, significantly improving equipment maintenance efficiency and usage flexibility. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention in use.

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3 This is a front view of the present invention;

[0020] Figure 4 For the present utility model Figure 3 Sectional view of AA in the middle;

[0021] Figure 5 For the present utility model Figure 4 Enlarged view at point B in the middle;

[0022] Figure 6 This is a schematic diagram of the first heat dissipation clamp structure of this utility model.

[0023] In the diagram: 1. Saw blade body; 101. First shaft hole; 102. First positioning hole; 2. Fixing mechanism; 201. Drive shaft; 202. Fixing nut; 3. Auxiliary heat dissipation mechanism; 301. First heat dissipation clamp; 3011. Positioning post; 3012. First heat dissipation plate; 3013. Second heat dissipation plate; 3014. Arc-shaped fan blade; 3015. Second shaft hole; 3016. Annular flange; 3017. Filler post; 3019. Air outlet; 302. Second heat dissipation clamp; 3021. Second positioning hole; 3022. Slide groove; 3023. Spring; 3024. Slide plate. Detailed Implementation

[0024] Please see Figures 1-6A circular saw blade mounting structure includes a saw blade body 1 and a fixing mechanism 2. The fixing mechanism 2 includes a drive shaft 201 and a fixing nut 202. The end of the drive shaft 201 is provided with an external thread that mates with the fixing nut 202. The saw blade body 1 is mounted on the drive shaft 201. Auxiliary heat dissipation mechanisms 3 are provided on both sides of the saw blade body 1.

[0025] The auxiliary heat dissipation mechanism 3 includes a first heat dissipation clamp 301 and a second heat dissipation clamp 302. The first heat dissipation clamp 301 is fixedly installed on the drive shaft 201, and the second heat dissipation clamp 302 is detachably installed on the side of the saw blade body 1 away from the first heat dissipation clamp 301. The first heat dissipation clamp 301 includes a first heat dissipation plate 3012, a second heat dissipation plate 3013 and an arc-shaped fan blade 3014. The arc-shaped fan blade 3014 is fixedly installed between the first heat dissipation plate 3012 and the second heat dissipation plate 3013. An air outlet 3019 is provided at the center of the second heat dissipation plate 3013.

[0026] Furthermore, the side end face of the first heat dissipation clamp 301 is provided with a positioning post 3011, the side end face of the saw blade body 1 is provided with a first positioning hole 102 that slides with the positioning post 3011, and the side end face of the second heat dissipation clamp 302 is provided with a second positioning hole 3021 that cooperates with the positioning post 3011.

[0027] The saw blade body 1 and the second heat dissipation clamp 302 are both mounted on the positioning column 3011. The positioning column 3011 ensures that the drive shaft 201 provides stable transmission to the saw blade. Even if the nut is slightly loose, the equipment can still maintain stable transmission, thus improving the stability of the transmission.

[0028] Furthermore, both the first heat dissipation plate 301 and the second heat dissipation plate 302 are provided with annular flanges 3016 on the side near the center of the saw blade body 1.

[0029] A certain gap is maintained between the saw blade body 1 and the first heat dissipation plate 301 and the second heat dissipation plate 302 through the annular flange 3016. After the airflow enters the first heat dissipation plate 301 and the second heat dissipation plate 302, it is blown towards the saw blade body 1 through the air outlet 3019. It can diffuse outward through the gap to form a circulating airflow, which accelerates the airflow speed on the surface of the saw blade body 1 and improves the heat dissipation effect of the saw blade body 1.

[0030] Furthermore, the first heat dissipation plate 301 and the second heat dissipation plate 302 are uniformly provided with filling columns 3017 that fit against the saw blade body 1 on the side edge near the saw blade body 1.

[0031] The filling column 3017 allows the edges of the first heat dissipation plate 301 and the second heat dissipation plate 302 to provide auxiliary support for the saw blade, preventing the saw blade body 1 from swinging axially during the cutting process and improving the stability of the cutting.

[0032] Furthermore, the arc-shaped fan blades 3014 are arranged in an equidistant circular array around the center of the first heat sink 3012, and both the first heat sink 301 and the second heat sink 302 are made of aluminum alloy.

[0033] The arc-shaped fan blades 3014 structure of the equidistant circular array makes the weight distribution of the first heat dissipation plate 301 and the second heat dissipation plate 302 uniform, reducing vibration during equipment use. The aluminum alloy material is lightweight and has good heat dissipation performance, which improves heat dissipation performance while avoiding excessive counterweight from having too much impact on the rotational speed of the saw blade body 1.

[0034] Furthermore, a groove 3022 is provided at the center of the end of the second heat dissipation clamp 302 away from the saw blade body 1. A sliding plate 3024 and a spring 3023 are provided in the groove 3022. The sliding plate 3024 and the second heat dissipation clamp 302 are elastically slidably connected through the spring 3023.

[0035] After the fixing nut 202 is tightened, the sliding plate 3024 compresses the spring 3023. When the fixing nut 202 is slightly loose, the first heat dissipation clamp 301, the saw blade body 1 and the second heat dissipation clamp 302 can still be in contact under the elastic action of the spring 3023, which further improves the stability of the equipment.

[0036] Furthermore, the center of the first heat dissipation clamp 301 is provided with a second shaft hole 3015 that is interference-connected with the drive shaft 201, the center of the saw blade body 1 is provided with a first shaft hole 101 that is slidably connected with the drive shaft 201, and the second heat dissipation clamp 302 is mounted on the drive shaft 201 and slidably connected with it.

[0037] The fixedly connected first heat dissipation clamp 301 drives the saw blade body 1 and the second heat dissipation clamp 302 to keep the three rotating synchronously. The detachable second heat dissipation clamp 302 and saw blade body 1 structure facilitates the replacement of the saw blade body 1 and improves the convenience of maintenance.

[0038] During installation, the saw blade body 1 is first fitted onto the drive shaft 201 through its central first shaft hole 101. At this time, the first positioning hole 102 on the side end face of the saw blade body 1 aligns with and slides into the positioning post 3011 on the side end face of the first heat dissipation clamp 301. Next, the second heat dissipation clamp 302 is also fitted onto the drive shaft 201 through its central hole, with the second positioning hole 3021 on the side end face of the second heat dissipation clamp 302 engaging with the positioning post 3011. Simultaneously, the second heat dissipation clamp 302 is mounted on the drive shaft 201 and slidably connected thereto. The first heat dissipation clamp 301 is now aligned with the drive shaft through its center. The interference fit 201 is fixed to the drive shaft 201. The structure comprising the first heat sink 3012, the second heat sink 3013, and the arc-shaped fan blade 3014 rotates with the drive shaft 201. The fixing nut 202 in the fixing mechanism 2 is screwed onto the external thread at the end of the drive shaft 201. During tightening, the slide plate 3024 in the center groove 3022 of the second heat sink 302 away from the saw blade body 1 will compress the spring 3023. When the fixing nut 202 loosens slightly, under the elastic action of the spring 3023, the first heat sink 301, the saw blade body 1, and the second heat sink 302 can... Maintaining a close fit, during operation, the electric saw's drive motor drives the drive shaft 201 to rotate, thereby causing the drive shaft 201 to rotate the first heat dissipation plate 301, which in turn drives the saw blade body 1 and the second heat dissipation plate 302 to rotate synchronously. The annular flanges 3016 provided near the center of the first and second heat dissipation plates 301 and 302 create a gap between the saw blade body 1 and these flanges. During rotation, the arc-shaped fan blades 3014 push the air to form an airflow. After the airflow blows from the air outlets 3019 of the first and second heat dissipation plates 301 and 302 onto the saw blade body 1, it can expand outward through the gap. The airflow is dispersed to form a circulating airflow, which accelerates the airflow speed on the surface of the saw blade body 1 and achieves heat dissipation. The filler columns 3017, which are evenly arranged near the side edge of the first heat dissipation plate 301 and the second heat dissipation plate 302, will fit against the saw blade body 1 to provide auxiliary support for the saw blade and prevent the saw blade body 1 from swinging axially during the cutting process. The arc-shaped fan blades 3014 in an equidistant circumferential array make the weight distribution of the first heat dissipation plate 301 and the second heat dissipation plate 302 uniform, reducing the vibration during the use of the equipment. Moreover, they are made of aluminum alloy, which improves the heat dissipation performance while avoiding excessive counterweight that affects the rotation speed of the saw blade body 1.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circular saw blade mounting structure, comprising a saw blade body (1) and a fixing mechanism (2), characterized in that: The fixing mechanism (2) includes a drive shaft (201) and a fixing nut (202). The end of the drive shaft (201) is provided with an external thread that mates with the fixing nut (202). The saw blade body (1) is mounted on the drive shaft (201). The two sides of the saw blade body (1) are provided with auxiliary heat dissipation mechanisms (3). The auxiliary heat dissipation mechanism (3) includes a first heat dissipation clamp (301) and a second heat dissipation clamp (302). The first heat dissipation clamp (301) is fixedly installed on the drive shaft (201). The second heat dissipation clamp (302) is detachably installed on the side of the saw blade body (1) away from the first heat dissipation clamp (301). The first heat dissipation clamp (301) includes a first heat dissipation plate (3012), a second heat dissipation plate (3013), and an arc-shaped fan blade (3014). The arc-shaped fan blade (3014) is fixedly installed between the first heat dissipation plate (3012) and the second heat dissipation plate (3013). An air outlet (3019) is provided at the center of the second heat dissipation plate (3013).

2. The circular saw blade mounting structure as described in claim 1, characterized in that: The first heat dissipation clamp (301) has a positioning post (3011) on its side end face, the saw blade body (1) has a first positioning hole (102) that slides with the positioning post (3011) on its side end face, and the second heat dissipation clamp (302) has a second positioning hole (3021) that mates with the positioning post (3011) on its side end face.

3. The circular saw blade mounting structure as described in claim 1, characterized in that: Both the first heat dissipation plate (301) and the second heat dissipation plate (302) have annular flanges (3016) at the center of the side near the saw blade body (1).

4. The circular saw blade mounting structure as described in claim 3, characterized in that: The first heat dissipation plate (301) and the second heat dissipation plate (302) are uniformly provided with filling columns (3017) that fit against the saw blade body (1) on the side edge near the saw blade body (1).

5. The circular saw blade mounting structure as described in claim 1, characterized in that: The arc-shaped fan blades (3014) are arranged in an equidistant circular array around the center of the first heat sink (3012), and the first heat sink (301) and the second heat sink (302) are both made of aluminum alloy.

6. The circular saw blade mounting structure as described in claim 1, characterized in that: The second heat dissipation clamp (302) has a groove (3022) at the center of the end away from the saw blade body (1). A sliding plate (3024) and a spring (3023) are provided in the groove (3022). The sliding plate (3024) and the second heat dissipation clamp (302) are elastically slidably connected by the spring (3023).

7. A circular saw blade mounting structure as described in claim 1, characterized in that: The first heat dissipation clamp (301) has a second shaft hole (3015) that is interference-connected to the drive shaft (201) at its center. The saw blade body (1) has a first shaft hole (101) that is slidably connected to the drive shaft (201) at its center. The second heat dissipation clamp (302) is mounted on the drive shaft (201) and slidably connected to it.

Images