Gear-driven girdling saw
By using a gear transmission and spring-driven friction plate design, the problem of swaying and deviation caused by the thinning of the circumferential saw blade is solved, thereby improving the stability and cutting accuracy of the saw blade, reducing safety hazards, and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUYI BOHAI POWER TOOLS CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-19
AI Technical Summary
Existing circumferential saw blades are prone to wear and thinning after prolonged continuous operation, leading to wobbling and deviation, affecting cutting accuracy and stability, and posing a safety hazard of breakage.
The design employs a gear transmission structure and a spring-driven friction plate, which limits the saw blade's movement. Combined with a water-cooling component and an auxiliary pressure roller, this improves the saw blade's stability and cooling effect.
It improves the stability and cutting accuracy of the saw blade, reduces the risk of breakage, enhances cutting efficiency and safety, and extends the service life of the saw blade.
Smart Images

Figure CN224254353U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circumferential cutting saw technology, specifically a gear-driven circumferential cutting saw. Background Technology
[0002] A water-cooled ring saw is a ring-shaped sawing device that uses circulating water for cooling. Its saw blade is usually ring-shaped and cuts the workpiece by rotating at high speed during operation. The water cooling system continuously supplies cooling water to the sawing area to reduce the high temperature generated by friction between the saw blade and the workpiece, preventing material deformation or damage to the saw blade due to overheating. It also reduces dust generated during the cutting process and improves the safety of the working environment. This equipment features high cutting accuracy, high efficiency, and good heat dissipation, and is widely used in fields requiring efficient sawing, such as metal processing, stone mining, and construction.
[0003] While existing circumferential saws can complete material cutting operations, in practical applications, the saw blades are prone to wear and tear after prolonged continuous operation, and the blades gradually become thinner and more susceptible to wobbling and deviation. This wobbling not only leads to a significant decrease in cutting accuracy and stability, but also poses a potential safety hazard of saw blade breakage. Once a breakage occurs, it will not only abruptly interrupt the cutting process and cause a loss of production efficiency, but the flying saw blade fragments may also pose a serious threat to the personal safety of the operators. Therefore, a gear-driven circumferential saw is proposed to solve the above-mentioned problems. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a gear-driven ring saw that features a spring-driven friction plate that restricts the position of the saw blade, thus improving its stability. This solves the problem that saw blades, after prolonged continuous operation, are prone to wear and thinning, easily leading to wobbling and deviation. This wobbling not only significantly reduces cutting accuracy and stability but also poses a safety hazard of blade breakage. Once a break occurs, it not only abruptly interrupts the cutting process, causing production efficiency losses, but the flying saw blade fragments can also seriously threaten the personal safety of operators.
[0006] (II) Technical Solution
[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A gear-driven ring saw includes a housing assembly and a ring saw blade. A drive assembly for driving the ring saw blade to rotate is provided inside the housing assembly. The drive assembly can effectively transmit power to the ring saw blade to achieve efficient cutting operation. A connecting shell is detachably installed on the outside of the housing assembly. The ring saw blade is located inside the connecting shell. Multiple sets of elastic components are symmetrically arranged inside the connecting shell. A friction plate is fixedly connected to the other end of the elastic component. The outer side of the friction plate and the outer side of the ring saw blade are pressed against each other.
[0008] The beneficial effects of this utility model are:
[0009] This gear-driven circumferential saw has the advantage of improving the stability of the saw blade by using a spring to push a friction plate, which restricts the position of the saw blade.
[0010] Based on the above technical solution, the present invention can be further improved as follows.
[0011] Furthermore, the housing assembly includes an outer shell and a tail cover detachably disposed at the end of the outer shell. A control handle is fixedly connected to the outer side of the outer shell, and a control switch is disposed on the outer side of the tail cover.
[0012] The advantage of adopting the above-mentioned further solution is that the control handle allows the operator to easily control the entire device.
[0013] Furthermore, the drive assembly includes a power reversing assembly fixedly connected to the inside of the housing assembly and a rotating column rotatably connected to the inside of the housing assembly. The power reversing assembly can drive the rotating column to rotate. One end of the rotating column is fixedly connected to a power gear. The inner side of the annular saw blade is provided with a connecting gear that meshes with the outer side of the power gear.
[0014] The advantage of adopting the above-mentioned further solution is that the drive component can drive the ring saw blade to rotate.
[0015] Furthermore, the power reversing assembly includes a drive motor fixedly connected to the inside of the housing assembly, a first bevel gear fixedly connected to the outside of the output shaft of the drive motor, and a second bevel gear fixedly connected to the outside of the rotating column, wherein the outer sides of the first bevel gear and the outer sides of the second bevel gear mesh with each other.
[0016] The advantage of adopting the above-mentioned further solution is that the power reversing assembly can cause the rotating column to rotate.
[0017] Furthermore, the elastic component includes a connecting spring fixedly connected to the inner side of the connecting shell and a T-shaped connecting block fixed to the other end of the connecting spring, wherein the outer side of the T-shaped connecting block is fixedly connected to the outer side of the friction plate.
[0018] The beneficial effect of adopting the above-mentioned further solution is that the elastic component can drive the friction plate to move.
[0019] Furthermore, an auxiliary ball is rotatably connected to the inner side of the T-shaped connecting block, and a connecting hole is provided on the outer side of the friction plate for the auxiliary ball to pass through. The outer side of the auxiliary ball is in contact with the outer side of the annular saw blade.
[0020] Furthermore, it also includes a water-cooling assembly, which includes a water-cooling plate that is detachably installed inside the connecting shell, a water channel disposed inside the water-cooling plate, and a water outlet connected to the water channel. An inlet pipe is connected to the outside of the water channel, and a water-cooling channel is formed between the inlet pipe, the water channel, and the water outlet.
[0021] The advantage of adopting the above-mentioned further solution is that the water-cooling component can cool the entire device.
[0022] Furthermore, the outer side of the housing assembly is provided with two auxiliary pressure rollers, and the outer side of the auxiliary pressure rollers is provided with multiple bosses, which are pressed against the outer side of the annular saw blade.
[0023] The beneficial effect of adopting the above-mentioned further solution is that the auxiliary pressure roller can improve the stability of the ring saw blade. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2 This is a connection diagram of the water channel and water cooling plate of this utility model;
[0026] Figure 3 This is a connection diagram of the housing assembly and drive component of this utility model;
[0027] Figure 4 This is a diagram of the T-shaped connecting block and auxiliary ball connection of this utility model.
[0028] In the diagram: 1. Housing assembly; 101. Outer shell; 102. Tail cover; 103. Control handle; 104. Control switch; 2. Ring saw blade; 3. Drive assembly; 31. Power reversing assembly; 301. Drive motor; 302. First bevel gear; 303. Second bevel gear; 32. Rotating column; 33. Power gear; 34. Connecting gear; 4. Connecting shell; 5. Elastic assembly; 51. Connecting spring; 52. T-shaped connecting block; 6. Friction plate; 7. Water cooling assembly; 71. Water cooling plate; 72. Water channel; 73. Water outlet; 8. Auxiliary ball bearing; 9. Auxiliary pressure roller. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] In the embodiments, by Figure 1-4 The present invention discloses a gear-driven ring saw, comprising a housing assembly 1 and a ring saw blade 2. A drive assembly 3 is provided on the inner side of the housing assembly 1 to drive the ring saw blade 2 to rotate. The drive assembly 3 can effectively transmit power to the ring saw blade 2 to achieve efficient cutting operation. A connecting shell 4 is detachably installed on the outer side of the housing assembly 1 by bolts. The ring saw blade 2 is located on the inner side of the connecting shell 4. Multiple sets of elastic components 5 are symmetrically arranged on the inner side of the connecting shell 4. A friction plate 6 is fixedly connected to the other end of the elastic component 5. The outer side of the friction plate 6 and the outer side of the ring saw blade 2 are pressed against each other.
[0031] With the above configuration, the drive assembly 3 provides rotational power to the ring saw blade 2, enabling the cutting function. The detachable connecting shell 4 facilitates installation and maintenance. The elastic assembly 5, in conjunction with the friction plate 6, limits the position of the ring saw blade 2, preventing it from shifting during operation and ensuring the stability and accuracy of the cutting operation.
[0032] In this embodiment, the outer shell 101 serves as the main structure, the tail cover 102 is detachably connected to the end of the outer shell 101 by means of buckles, screws, etc., the control handle 103 is fixed to the outside of the outer shell 101 by means of welding, bolts, etc., and the control switch 104 is installed on the outside of the tail cover 102 for easy operation by the operator.
[0033] This structural design makes the assembly and disassembly of the housing assembly 1 more convenient, facilitates the maintenance and replacement of internal components, and the design of the control handle 103 and control switch 104 is ergonomic, making it easy for operators to hold and control the start and stop of the equipment, thus improving the convenience and comfort of operation.
[0034] In this embodiment, the drive assembly 3 includes a power reversing assembly 31 fixedly connected to the inside of the housing assembly 1 and a rotating column 32 rotatably connected to the inside of the housing assembly 1. The power reversing assembly 31 can drive the rotating column 32 to rotate. One end of the rotating column 32 is fixedly connected to a power gear 33. The inner side of the annular saw blade 2 is provided with a connecting gear 34 that meshes with the outer side of the power gear 33. The power reversing assembly 31 includes a drive motor 301 fixedly connected to the inside of the housing assembly 1, a first bevel gear 302 fixedly connected to the outer side of the output shaft of the drive motor 301, and a second bevel gear 303 fixedly connected to the outer side of the rotating column 32. The outer sides of the first bevel gear 302 and the outer sides of the second bevel gear 303 mesh with each other.
[0035] The drive assembly 3 can effectively transmit and reverse power, accurately transmitting power to the ring saw blade 2, ensuring that the ring saw blade 2 can rotate stably and efficiently, thereby completing the cutting task and improving cutting efficiency and quality. At the same time, the power reversing assembly 31 uses the meshing transmission of bevel gears to realize the change of power direction, so that the power of the drive motor 301 can be effectively transmitted to the rotating column 32. The structure is compact, the transmission is stable and reliable, ensuring the continuous and stable rotation of the ring saw blade 2 and providing stable power support for the cutting operation.
[0036] In this embodiment, the elastic component 5 includes a connecting spring 51 fixedly connected to the inner side of the connecting shell 4 and a T-shaped connecting block 52 fixedly connected to the other end of the connecting spring 51. The outer side of the T-shaped connecting block 52 is fixedly connected to the outer side of the friction plate 6.
[0037] The elastic component 5 utilizes the elasticity of the connecting spring 51 to ensure that the friction plate 6 is always in close contact with the ring saw blade 2, which plays a limiting and stabilizing role for the ring saw blade 2. When the ring saw blade 2 is slightly deviated by external force during the cutting process, the elasticity of the connecting spring 51 can restore it to the normal position, thereby enhancing the stability and reliability of the ring saw blade 2 during operation.
[0038] In this embodiment, an auxiliary ball bearing 8 is rotatably connected to the inner side of the T-shaped connecting block 52, and a connecting hole for the auxiliary ball bearing 8 to pass through is opened on the outer side of the friction plate 6. The outer side of the auxiliary ball bearing 8 is in contact with the outer side of the annular saw blade 2.
[0039] The auxiliary ball bearing 8 converts the sliding friction between the friction plate 6 and the ring saw blade 2 into rolling friction, greatly reducing the frictional force between them, decreasing the wear of both the friction plate 6 and the ring saw blade 2, extending the service life of the components, and also making the ring saw blade 2 rotate more smoothly and reducing energy loss.
[0040] It also includes a water-cooling component 7, which includes a water-cooling plate 71 that is detachably installed inside the connecting shell 4, a water channel 72 located inside the water-cooling plate 71, and a water outlet 73 connected to the water channel 72. An inlet pipe is connected to the outside of the water channel 72, and a water-cooling channel is formed between the inlet pipe, the water channel 72 and the water outlet 73. A groove for storing the power gear 33 is provided on the outside of the water-cooling plate 71.
[0041] The water-cooling component 7 can remove the heat generated by the ring saw blade 2 during the cutting process through the water circulation in the water-cooling channel, preventing the ring saw blade 2 from deforming or being damaged due to excessive temperature, ensuring the cutting performance and service life of the ring saw blade 2, and also reducing the risk of equipment failure caused by high temperature, thus improving the working stability and reliability of the equipment.
[0042] In this embodiment, two auxiliary pressure rollers 9 are provided on the outer side of the housing assembly 1. Multiple bosses are provided on the outer side of the auxiliary pressure rollers 9, and the bosses press against the outer side of the annular saw blade 2.
[0043] The auxiliary pressure roller 9 and its boss are designed to limit and stabilize the ring saw blade 2. When the ring saw blade 2 rotates and cuts, the pressure between the boss and the ring saw blade 2 can prevent the ring saw blade 2 from shaking and shifting, thereby enhancing the stability of the ring saw blade 2 during operation, improving the cutting accuracy and quality, and also sharing some of the force on the ring saw blade 2 during the cutting process, thus extending the service life of the ring saw blade 2.
[0044] Working principle:
[0045] When the entire device is needed, the operator holds the control handle 103 with one hand and the tail cover 102 with the other. By pressing the control switch 104, the drive motor 301 can be started, which in turn drives the rotating column 32 to rotate. The power gear 33 will drive the ring saw blade 2 to rotate, thereby enabling the cutting operation. During the cutting process, water enters through the water inlet pipe and exits through the water outlet 73, thereby enabling the entire device to be water-cooled.
[0046] During the rotation of the ring saw blade 2, the connecting spring 51 will push the friction plate 6, so that the friction plate 6 and the outer side of the ring saw blade 2 come into contact with each other, thereby effectively restricting the position of the ring saw blade 2, preventing the position of the ring saw blade 2 from shifting, and improving the stability of the ring saw blade 2.
[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A gear-driven ring saw, comprising a housing assembly (1) and a ring saw blade (2), characterized in that: The housing assembly (1) is provided with a drive assembly (3) for driving the ring saw blade (2) to rotate. The drive assembly (3) can effectively transmit power to the ring saw blade (2) to achieve efficient cutting operation. The housing assembly (1) is detachably installed with a connecting shell (4). The ring saw blade (2) is located inside the connecting shell (4). Multiple sets of elastic components (5) are symmetrically arranged inside the connecting shell (4). The other end of the elastic component (5) is fixedly connected to a friction plate (6). The outer side of the friction plate (6) and the outer side of the ring saw blade (2) are pressed against each other.
2. The gear-driven ring saw according to claim 1, characterized in that: The housing assembly (1) includes a housing (101) and a tail cover (102) detachably disposed at the end of the housing (101). A control handle (103) is fixedly connected to the outside of the housing (101), and a control switch (104) is disposed on the outside of the tail cover (102).
3. A gear-driven ring saw according to claim 1, characterized in that: The drive assembly (3) includes a power reversing assembly (31) fixedly connected to the inside of the housing assembly (1) and a rotating column (32) rotatably connected to the inside of the housing assembly (1). The power reversing assembly (31) can drive the rotating column (32) to rotate. One end of the rotating column (32) is fixedly connected to a power gear (33). The inner side of the annular saw blade (2) is provided with a connecting gear (34) that meshes with the outer side of the power gear (33).
4. A gear-driven ring saw according to claim 3, characterized in that: The power reversing assembly (31) includes a drive motor (301) fixedly connected to the inside of the housing assembly (1), a first bevel gear (302) fixedly connected to the outside of the output shaft of the drive motor (301), and a second bevel gear (303) fixedly connected to the outside of the rotating column (32). The outside of the first bevel gear (302) and the outside of the second bevel gear (303) mesh with each other.
5. A gear-driven circumferential saw according to claim 1, characterized in that: The elastic component (5) includes a connecting spring (51) fixedly connected to the inside of the connecting shell (4) and a T-shaped connecting block (52) fixed to the other end of the connecting spring (51). The outer side of the T-shaped connecting block (52) is fixedly connected to the outer side of the friction plate (6).
6. A gear-driven ring saw according to claim 5, characterized in that: The inner side of the T-shaped connecting block (52) is rotatably connected to an auxiliary ball (8), and the outer side of the friction plate (6) is provided with a connecting hole for the auxiliary ball (8) to pass through. The outer side of the auxiliary ball (8) is in contact with the outer side of the annular saw blade (2).
7. A gear-driven circumferential saw according to claim 1, characterized in that: It also includes a water-cooling assembly (7), which includes a water-cooling plate (71) detachably installed inside the connecting shell (4), a water channel (72) disposed inside the water-cooling plate (71), and an outlet (73) connected to the water channel (72). An inlet pipe is connected to the outside of the water channel (72), and a water-cooling channel is formed between the inlet pipe, the water channel (72), and the outlet (73).
8. A gear-driven circumferential saw according to claim 1, characterized in that: The outer side of the housing assembly (1) is provided with two auxiliary pressure rollers (9), and the outer side of the auxiliary pressure rollers (9) is provided with multiple bosses, which are pressed against the outer side of the annular saw blade (2).