Water-cooling trephine
By designing guide rollers and pressure rollers, the friction between the water-cooled ring saw blade and the cam is enhanced, solving the problem of the saw blade easily wobbling and breaking after long-term operation, thus achieving a more stable cutting process and higher safety.
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 water-cooled ring saws lack the function of adjusting the saw blade clamping force, which causes the saw blade to wear thin after long-term operation, making it prone to wobbling, affecting the cutting stability, and posing a risk of breakage, thus threatening the safety of operators.
The saw blade is driven by a guide wheel, and the pressure of the saw blade is adjusted by spring pressure. The connecting groove of the saw blade is always locked on the boss of the cam by a pressure wheel, which enhances the friction between the saw blade and the cam. The combination of the guide wheel and pressure wheel design improves the stability of the saw blade.
It improves the stability and cutting accuracy of the saw blade, reduces the risk of saw blade wobbling and detachment, and enhances the safety and efficiency of the cutting process.
Smart Images

Figure CN224254354U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ring saw technology, specifically a water-cooled ring saw. Background Technology
[0002] A water-cooled ring saw is a ring sawing device equipped with a water-cooling system. It mainly cuts materials by rotating the ring saw blade at high speed. During operation, the water-cooling system continuously cools the saw blade and the cutting area, which can reduce saw blade wear and material deformation caused by frictional heat, improve cutting accuracy and efficiency, and is suitable for processing hard materials such as stone and metal. It is widely used in construction, machinery manufacturing and other fields.
[0003] Existing water-cooled ring saws can complete material cutting operations during use. However, due to the lack of saw blade clamping force adjustment function, after long-term operation, the worn and thinned saw blade is prone to swaying, resulting in decreased cutting stability. More seriously, there is a risk of saw blade breakage, which not only interrupts the cutting operation but also threatens the personal safety of the operator. Therefore, a water-cooled ring 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 water-cooled ring saw. It features adjustable saw blade pressure via spring pressure, maintaining a certain level of friction on the saw blade. Simultaneously, a guide wheel pushes the saw blade, causing friction between the saw blade's connecting groove and the cam. Furthermore, a pressure roller keeps the connecting groove of the saw blade constantly engaged on the cam's boss, improving the saw blade's stability. This solution addresses the problem that, during ring saw operation, the lack of saw blade pressure adjustment leads to the saw blade easily wobbling after prolonged use due to wear and thinning, resulting in decreased cutting stability. More seriously, the saw blade may break, interrupting the cutting operation and threatening the operator's safety.
[0006] (II) Technical Solution
[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A water-cooled ring saw includes a housing assembly and a saw blade. A rotatable cam is installed on the outer side of the housing assembly via a drive motor. A connecting groove adapted to the cam boss is opened on the outer side of the saw blade. The connecting groove is engaged with the outer side of the cam boss. When the cam rotates, it drives the saw blade to rotate through the connecting groove to achieve cutting. A splicing shell is detachably installed on the outer side of the housing assembly via bolts. A guide wheel is provided on the inner side of the splicing shell via an elastic limiting component. The outer side of the guide wheel presses against the outer side of the saw blade. A pressure wheel is fixedly connected to the inner side of the splicing shell and presses against the outer side of the saw blade. The pressure wheel is used to keep the connecting groove of the saw blade on the cam boss at all times, thereby increasing the friction between the saw blade and the cam.
[0008] The beneficial effects of this utility model are:
[0009] This water-cooled ring saw features a saw blade that is pushed by a guide wheel, and the saw blade pressure can be adjusted by spring pressure to maintain a certain friction. At the same time, the guide wheel pushes the saw blade to generate friction between the connecting groove of the saw blade and the cam, and the pressure wheel keeps the connecting groove of the saw blade locked on the boss of the cam, which improves the stability 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 for controlling the operation of the drive motor is disposed on the outer side of the tail cover.
[0012] The advantage of adopting the above-mentioned further solution is that the control switch can control the operation of the drive motor.
[0013] Furthermore, a top protective cover located above the saw blade is rotatably connected to the top of the splicing shell, and a bottom protective cover located below the saw blade is fixedly connected to the bottom of the shell assembly.
[0014] The advantage of adopting the above-mentioned further solution is that the top protective cover, together with the bottom protective cover, can provide protection during operation.
[0015] Furthermore, a water-cooling plate is detachably installed on the inner side of the splicing shell. The water-cooling plate has water channels inside and multiple water outlets connected to the water channels on the outer side. The outer side of the water channels is connected to the water supply pipe, and a water-cooling channel is formed between the water supply pipe, the water channels and the water outlets.
[0016] The beneficial effect of adopting the above-mentioned further solution is that water cooling operation can be achieved through the above settings.
[0017] Furthermore, the elastic limiting component includes a connecting plate fixedly installed on the inner side of the splicing shell by bolts. An arc-shaped connecting shell is slidably connected to the outer side of the connecting plate by a T-shaped limiting rod. A connecting spring is fixedly connected between the arc-shaped connecting shell and the connecting plate. The outer side of the arc-shaped connecting shell is fixedly connected to a guide wheel. The connecting spring can push the T-shaped limiting rod to move the arc-shaped connecting shell and the guide wheel, so that the guide wheel exerts a squeezing effect on the outer side of the saw blade.
[0018] The advantage of adopting the above-mentioned further solution is that the elastic limiting component can push the guide wheel to move.
[0019] Furthermore, multiple positioning rods are fixedly connected to the inner side of the splicing shell, and a positioning groove matching the positioning rod is opened on the outer side of the arc-shaped connecting shell. The outer side of the positioning rod is slidably connected to the inner side of the positioning groove to form a sliding pair.
[0020] The advantage of adopting the above-mentioned further solution is that the positioning rod can improve the movement stability of the arc-shaped connecting shell.
[0021] Furthermore, there are multiple T-shaped limiting rods, which are evenly distributed on the inner side of the arc-shaped connecting shell, and the connecting spring is located on the outer side of the T-shaped limiting rods. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 This is a three-dimensional view of the structure of this utility model;
[0024] Figure 3 This is a connection diagram of the cam and connecting groove of this utility model;
[0025] Figure 4 This is a diagram showing the connection between the water-cooling plate and the water channel of this utility model;
[0026] Figure 5 This is a connection diagram of the positioning rod and positioning groove of this utility model;
[0027] Figure 6 This utility model Figure 1 Enlarged view of point A in the middle.
[0028] In the diagram: 1. Housing assembly; 101. Outer shell; 102. Tail cover; 103. Control handle; 104. Control switch; 2. Saw blade; 3. Cam; 4. Connecting groove; 5. Splicing shell; 6. Spring limit assembly; 61. Connecting plate; 62. T-shaped limit rod; 63. Arc-shaped connecting shell; 64. Connecting spring; 7. Guide wheel; 8. Pressure wheel; 9. Top protective cover; 10. Bottom protective cover; 11. Water cooling plate; 12. Water channel; 13. Water outlet; 14. Positioning rod; 15. Positioning groove. 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 1-6 This invention discloses a water-cooled ring saw, comprising a housing assembly 1 and a saw blade 2. A rotatable cam 3 is mounted on the outer side of the housing assembly 1 via a drive motor. A connecting groove 4 adapted to the boss of the cam 3 is provided on the outer side of the saw blade 2. The connecting groove 4 is engaged with the outer side of the boss of the cam 3. When the cam 3 rotates, it drives the saw blade 2 to rotate through the connecting groove 4 to achieve cutting. A splicing shell 5 is detachably installed on the outer side of the housing assembly 1 via bolts. A guide wheel 7 is provided on the inner side of the splicing shell 5 via an elastic limiting component 6. The outer side of the guide wheel 7 presses against the outer side of the saw blade 2. A pressure wheel 8 is fixedly connected to the inner side of the splicing shell 5, which presses against the outer side of the saw blade 2. The pressure wheel 8 is used to keep the connecting groove 4 of the saw blade 2 on the boss of the cam 3 at all times, thereby increasing the friction between the saw blade 2 and the cam 3.
[0031] The saw blade 2 includes cutting saw blades with different diameter specifications, and different diameter cutting saw blades can be replaced as needed to facilitate subsequent cutting operations.
[0032] In actual manufacturing, the drive motor is first installed inside the housing assembly 1, and the cam 3 is connected to the output shaft of the drive motor to ensure that the cam 3 can rotate freely. The rotation drive of the saw blade 2 is achieved through the cooperation between the cam 3 and the connecting groove 4 of the saw blade 2. The pressure roller 8 ensures that the saw blade 2 is stably connected to the cam 3. The guide roller 7 and the elastic limit component 6 help stabilize the saw blade 2, which increases the friction between the saw blade 2 and the cam 3, making the cutting process more stable, the cutting accuracy higher, and reducing the risk of the saw blade 2 shaking or falling off.
[0033] In this embodiment, 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 for controlling the operation of the drive motor is disposed on the outside of the tail cover 102.
[0034] The control handle 103 is convenient for operators to hold and operate the water-cooled ring saw. The control switch 104 is located on the outside of the tail cover 102 for easy operation. The housing 101 and the tail cover 102 are detachably connected to facilitate maintenance and repair of internal components such as the drive motor.
[0035] In this embodiment, a top protective cover 9 is installed at the top of the splicing shell 5 via a hinge or other rotating connection structure, allowing the top protective cover 9 to rotate around the connection point and cover the saw blade 2. A bottom protective cover 10 is fixedly installed at the bottom of the housing assembly 1 via welding, bolt connection, or other methods, so that it is located below the saw blade 2. The top protective cover 9 and the bottom protective cover 10 can effectively protect the safety of the operator and prevent the saw blade 2 from causing accidental injury to the personnel during operation, thereby improving the safety of using the water-cooled ring saw.
[0036] In this embodiment, a water-cooling plate 11 is detachably installed inside the splicing shell 5. Water channels 12 are opened inside the water-cooling plate 11, and multiple water outlets 13 connected to the water channels 12 are opened on the outside of the water-cooling plate 11. The outside of the water channels 12 is connected to the water supply pipe. A water-cooling channel is formed between the water supply pipe, the water channels 12 and the water outlets 13. The water-cooling channel can remove the heat generated during the cutting process in time, effectively cool the saw blade 2 and the cutting part, prevent the saw blade 2 from being damaged due to high temperature, extend the service life of the saw blade 2, and improve the cutting quality.
[0037] In this embodiment, the connecting plate 61 is first fixedly installed inside the splicing shell 5 with bolts. A sliding hole adapted to the T-shaped limiting rod 62 is machined on the arc-shaped connecting shell 63. One end of the T-shaped limiting rod 62 is passed through the sliding hole and connected to the connecting plate 61, allowing the arc-shaped connecting shell 63 to slide on the outside of the connecting plate 61 through the T-shaped limiting rod 62. At the same time, a connecting spring 64 is installed between the arc-shaped connecting shell 63 and the connecting plate 61, and the guide wheel 7 is fixedly installed on the outside of the arc-shaped connecting shell 63. After installation, the connecting spring 64 is in a compressed state, which pushes the T-shaped limiting rod 62 to move the arc-shaped connecting shell 63 and the guide wheel 7 towards the saw blade 2. This causes the guide wheel 7 to squeeze the outside of the saw blade 2, which can effectively limit the shaking of the saw blade 2, improve the stability of the saw blade 2 during the cutting process, and ensure cutting accuracy.
[0038] Multiple positioning rods 14 are fixedly connected to the inner side of the splicing shell 5. The outer side of the arc-shaped connecting shell 63 is provided with positioning grooves 15 that match the positioning rods 14. The outer side of the positioning rods 14 is slidably connected to the inner side of the positioning grooves 15 to form a sliding pair.
[0039] The sliding pair formed by the positioning rod 14 and the positioning groove 15 can guide and position the movement of the arc-shaped connecting shell 63, ensuring that the guide wheel 7 always presses the saw blade 2 in the correct direction, further improving the stability and cutting accuracy of the saw blade 2.
[0040] There are multiple T-shaped limiting rods 62, which are evenly distributed on the inner side of the arc-shaped connecting shell 63, and the connecting spring 64 is located on the outer side of the T-shaped limiting rods 62.
[0041] Working principle:
[0042] When cutting is required, the operator holds the control handle 103 with one hand and the tail cover 102 with the other hand, and then presses the control switch 104 to drive the cam 3 to rotate through the drive motor, which in turn drives the saw blade 2 to rotate through the connecting groove 4, thus enabling the cutting operation.
[0043] Water enters through the inlet pipe during cutting and can be sprayed out through the outlet 13, thereby cooling the entire device.
[0044] Furthermore, during use, the connecting spring 64 can push the T-shaped limiting rod 62 to move, and the guide wheel 7 can squeeze the outside of the saw blade 2. At the same time, the pressure wheel 8 keeps the connecting groove 4 of the saw blade 2 locked in the boss of the cam 3, which increases the friction between the saw blade 2 and the cam 3 and increases the overall stability of the saw blade 2.
[0045] 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.
[0046] 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 water-cooled ring saw, comprising a housing assembly (1) and a saw blade (2), characterized in that: A rotatable cam (3) is mounted on the outer side of the housing assembly (1) via a drive motor. A connecting groove (4) adapted to the boss of the cam (3) is opened on the outer side of the saw blade (2). The connecting groove (4) is engaged on the outer side of the boss of the cam (3). When the cam (3) rotates, it drives the saw blade (2) to rotate through the connecting groove (4) to achieve cutting. A splicing shell (5) is detachably installed on the outer side of the housing assembly (1) via bolts. A guide wheel (7) is provided on the inner side of the splicing shell (5) via an elastic limiting component (6). The outer side of the guide wheel (7) is pressed against the outer side of the saw blade (2). A pressure wheel (8) is fixedly connected to the inner side of the splicing shell (5) and is pressed against the outer side of the saw blade (2). The pressure wheel (8) is used to keep the connecting groove (4) of the saw blade (2) always on the boss of the cam (3) to increase the friction between the saw blade (2) and the cam (3).
2. The water-cooled 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) for controlling the operation of the drive motor is disposed on the outside of the tail cover (102).
3. A water-cooled ring saw according to claim 1, characterized in that: The top of the splicing shell (5) is rotatably connected to a top protective cover (9) located above the saw blade (2), and the bottom of the housing assembly (1) is fixedly connected to a bottom protective cover (10) located below the saw blade (2).
4. A water-cooled ring saw according to claim 1, characterized in that: The inner side of the splicing shell (5) is detachably provided with a water cooling plate (11). The water cooling plate (11) has a water channel (12) inside. The outer side of the water cooling plate (11) has multiple water outlets (13) that communicate with the water channel (12). The outer side of the water channel (12) is connected to the water supply pipe. A water cooling channel is formed between the water supply pipe, the water channel (12) and the water outlets (13).
5. A water-cooled ring saw according to claim 1, characterized in that: The elastic limiting component (6) includes a connecting plate (61) fixedly installed on the inner side of the splicing shell (5) by bolts. An arc-shaped connecting shell (63) is slidably connected to the outer side of the connecting plate (61) by a T-shaped limiting rod (62). A connecting spring (64) is fixedly connected between the arc-shaped connecting shell (63) and the connecting plate (61). The outer side of the arc-shaped connecting shell (63) is fixedly connected to the guide wheel (7). The connecting spring (64) can push the T-shaped limiting rod (62) to drive the arc-shaped connecting shell (63) and the guide wheel (7) to move, so that the guide wheel (7) exerts a squeezing effect on the outer side of the saw blade (2).
6. A water-cooled ring saw according to claim 5, characterized in that: Multiple positioning rods (14) are fixedly connected to the inner side of the splicing shell (5). The outer side of the arc-shaped connecting shell (63) is provided with a positioning groove (15) that matches the positioning rods (14). The outer side of the positioning rods (14) is slidably connected to the inner side of the positioning groove (15) to form a sliding pair.
7. A water-cooled ring saw according to claim 5, characterized in that: There are multiple T-shaped limiting rods (62), which are evenly distributed on the inner side of the arc-shaped connecting shell (63), and the connecting spring (64) is located on the outer side of the T-shaped limiting rods (62).