Internal gear ring cutting machine

Abstract

The invention discloses an internal tooth ring cutting machine, a saw blade is annular, the saw blade comprises external teeth arranged on the outer side edge and internal teeth arranged on the inner side edge, and the external teeth are used for cutting; the inner teeth are meshed with the driving gear; the transmission assembly comprises a transmission shaft and a first bevel gear, and the driving gear and the first bevel gear are fixedly arranged at the two ends of the transmission shaft respectively; the output assembly comprises an output shaft and a second bevel gear which are fixedly connected, and the first bevel gear and the second bevel gear are in meshing transmission. The saw blade has the beneficial effects that firstly, an original hard friction transmission mode is replaced by a transmission mode that the inner teeth are meshed with the driving gear, the transmission effect of the saw blade is improved, and the defect that the saw blade is prone to slipping is overcome; and secondly, the compression wheel on the side face is fixed through a gear transmission mode, adjustment is not needed after the saw blade is replaced, the difficulty of replacing and adjusting the saw blade and the compression wheel is reduced, and rapidness and effectiveness are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cutting machines, in particular to an internal gear ring cutting machine. Background Art

[0002] Electric handheld cutting machines are suitable for architectural decoration, stone processing, and cutting and grooving of non-metallic brittle materials containing silicates such as terrazzo, marble, granite, glass, and cement boards. It has the advantages of high cutting efficiency, good processing quality, easy use, and low labor intensity. It is one of the most commonly used cutting tools among electric tools, and users need to hold it with both hands. At present, electric handheld cutting machines use hard friction between saw blades and guide wheels. With the number and duration of use, both the saw blades and guide wheels will wear, and the contact position between the saw blades and guide wheels needs to be constantly adjusted, resulting in the defects of low transmission effect between the guide wheel and the saw blade, easy slippage, fast wear, and cumbersome replacement and adjustment of the saw blade. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a cutting machine with an internal gear transmission mode.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: an internal-tooth ring cutter, comprising a saw blade, which is ring-shaped and includes external teeth arranged on the outer edge and internal teeth arranged on the inner edge, and the external teeth are used for cutting; a driving gear, the internal teeth are meshed with the driving gear; a transmission assembly, the transmission assembly includes a transmission shaft and a first bevel gear, the driving gear and the first bevel gear are respectively fixed at both ends of the transmission shaft; an output assembly, including a fixedly connected output shaft and a second bevel gear, the first bevel gear is meshed with the second bevel gear for transmission.

[0005] Preferably, tracks in the form of annular grooves are provided along the two ring sides of the saw blade.

[0006] Preferably, a clamping wheel is included, a protrusion is provided on the surface of the clamping wheel, two clamping wheels are fixedly arranged on two side surfaces of the saw blade as a group, and the protrusion is pressed into the track to roll.

[0007] Preferably, it comprises a water retaining assembly arranged at the side edge of the saw blade, and the water retaining assembly comprises an upper water retaining plate and a lower water retaining plate which are arranged in an inverted manner.

[0008] Preferably, it comprises a water outlet assembly, and the water outlet assembly further comprises a water outlet and a water outlet pipe connected to each other; the water outlet is arranged on one side of the saw blade and is located below the transmission assembly.

[0009] Preferably, it includes a water guide component, which includes a water guide plate and a partition; the water guide plate and the partition are arranged in a mutually fitted manner within the ring of the saw blade, and the cut-away portion of the water guide plate along the edge inwardly fits with the partition to form a guide portion.

[0010] Preferably, it also includes a shell, a hand-held part and a handle.

[0011] Preferably, the tracks are two concentric tracks arranged on the side surfaces of the saw blade.

[0012] Preferably, the protrusions are two annular strip protrusions arranged at intervals, and the interval distance corresponds to the interval distance between the two tracks, and the two protrusions are respectively located in the two tracks and roll.

[0013] Preferably, the clamping wheels are in two groups, which are respectively located above and below the driving gear.

[0014] The beneficial effects of the present invention are as follows: first, by setting a transmission mode in which the internal teeth are meshed with the driving gear, the original hard friction transmission mode is replaced, thereby improving the transmission effect of the saw blade and overcoming the defect of easy slipping; second, the gear transmission mode makes the side pressure wheel fixed, and no adjustment is required after the saw blade is replaced, thereby reducing the difficulty of replacing and adjusting the saw blade and the pressure wheel, and achieving quick and effective results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a driving gear of an internal gear ring cutting machine proposed by the present invention;

[0016] Figure 2 A schematic diagram of the transmission assembly and the output assembly proposed by the present invention;

[0017] Figure 3 A schematic diagram of the partition proposed by the present invention;

[0018] Figure 4 A schematic diagram of the water guide plate proposed by the present invention;

[0019] Figure 5 This is a structural schematic diagram of the existing hard friction method of the cutting machine proposed by the present invention;

[0020] Figure 6 This is a schematic structural diagram from another perspective of the hard friction method of the existing cutting machine proposed by the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of them.

[0022] Example 1

[0023] Reference Figure 1-4 As shown in the figure, in order to overcome the defects of the existing cutting machine that adopts the hard friction method between the saw blade and the guide wheel, which causes the guide wheel and the saw blade to have low transmission effect, fast wear, and cumbersome replacement and adjustment of the saw blade, an internal tooth ring cutting machine is proposed in this embodiment, in which the inner circle of the saw blade 100 is manufactured into an internal gear, which is meshed and transmitted by a small gear to perform cutting and cutting work. Due to the characteristics of high gear transmission effect, non-slip, lubrication, and easy production and manufacturing, the performance of the machine and the processing technology are greatly improved. And because of the design of the gear, its side guide wheel is fixed, and no adjustment is required after replacing the saw blade 100, which reduces the difficulty of replacing and adjusting the saw blade 100 by adjusting the side guide wheel. The saw blade 100 can be a diamond saw blade, a carbide saw blade, etc., and the cutting and cutting objects are such as metal, stone, concrete, wood, etc.

[0024] Therefore, an internal tooth ring cutter is proposed in this embodiment, including a saw blade 100, a driving gear 200, a transmission assembly 300 and an output assembly 400. The saw blade 100 rotates for cutting operations. The driving gear 200 is transmitted to the saw blade 100 and is used to drive the rotation of the saw blade 100. The two ends of the transmission assembly 300 are respectively connected to the driving gear 200 and the output assembly 400, and are used to transmit the rotation output of the output assembly 400 to the driving gear 200, thereby realizing the rotation of the saw blade 100.

[0025] Furthermore, the saw blade 100 is annular, and includes outer teeth 101 arranged on the outer edge and inner teeth 102 arranged on the inner edge. The outer teeth 101 are used for cutting operations, and the inner teeth 102 are engaged with the driving gear 200. The saw blade 100 is driven to rotate by the rotation of the driving gear 200, and at the same time, the inner teeth 102 and the driving gear 200 are straight teeth matched.

[0026] The transmission assembly 300 includes a transmission shaft 301 and a first bevel gear 302. The driving gear 200 and the first bevel gear 302 are fixedly arranged at both ends of the transmission shaft 301, respectively. The three are in a fixed state and rotate synchronously. The output assembly 400 includes a fixedly connected output shaft 401 and a second bevel gear 402. The first bevel gear 302 and the second bevel gear 402 are meshed for transmission. It should be noted that the first bevel gear 302 and the second bevel gear 402 are both in the vertical direction, have opposite spiral tooth directions and present a 90-degree angle in the vertical direction. The output shaft 401 is the rotating shaft of the motor. The rotation torque of the motor is transmitted to the saw blade 100 through the transmission assembly 300 to achieve a rotary cutting operation.

[0027] In order to achieve stable rotation of the saw blade 100, in this embodiment, a track 103 with an annular groove is provided along the two ring sides of the saw blade 100, and a clamping wheel 500 is provided on the surface of the clamping wheel 500 for clamping the saw blade 100. A protrusion 501 is provided on the surface of the clamping wheel 500. The two clamping wheels 500 are fixedly arranged on the two sides of the saw blade 100 as a group, and the protrusions 501 are pressed into the track 103 to roll. It should be noted that the clamping wheel 500 of this embodiment is fixedly arranged, and the protrusions 501 on the two sides are pressed into the track 103 to limit the saw blade 100 to prevent it from shaking unstably during the rotation process, which affects the accuracy of the cutting operation. As the clamping wheel 500 rolls, the protrusions 501 continuously roll and limit in the track 103.

[0028] As a preferred solution of this embodiment, the rails 103 are two concentrically arranged on the side of the saw blade 100. An additional rail 103 is added to improve the limiting stability of the saw blade 100. At the same time, if there are too many rails 103, the strength of the saw blade 100 will be affected, affecting its service life.

[0029] To match the two rails 103, the protrusions 501 in this embodiment are two annular strip protrusions arranged at intervals, and the interval distance corresponds to the interval distance of the two rails 103. The two protrusions 501 are respectively located in the two rails 103 and roll, and the clamping wheels 500 are in two groups, which are respectively located above and below the driving gear 200. In layman's terms, the cooperation of the two rails 103 and the protrusions 501 can provide stability, and the addition of two groups of clamping wheels 500, the double stability makes the saw blade 100 have a better cutting effect, stronger stability and more durability.

[0030] Reference Figure 3-4 As shown in the diagram, the internal tooth ring cutting machine of this embodiment also includes a water retaining component 600, a water outlet component 700 and a water guide component 800, wherein the water outlet component 700 is used when the saw blade 100 is performing a cutting operation. Since the saw blade 100 will generate heat during cutting, and dust and debris will enter, it is necessary to pour water on the saw blade 100. The water outlet component 700 is used to water the saw blade 100. While dissipating heat, it can also wash away the generated debris and surrounding dust. However, during this process, the saw blade 100 will throw water onto the user at high speed. Therefore, a water retaining component 600 is also provided in this embodiment for retaining water in the vertical direction, that is, in the direction of rotation. The water guide component 800 is used to guide the direction of the water flow so that it can water the saw blade 100 along the edge, and has a certain water-isolating effect in the horizontal direction.

[0031] To be more specific, the water retaining assembly 600 is arranged on the side edge of the saw blade 100, and the water retaining assembly 600 also includes an upper water retaining plate 601 and a lower water retaining plate 602 that are flipped. The upper water retaining plate 601 and the lower water retaining plate 602 can be flipped in the vertical direction at a certain angle to adapt to the strength of water retaining. When the rotation speed is high, they can be flipped to a position closer to the saw blade 100, and when the rotation speed is low, they can be flipped to a position farther from the saw blade 100. The angle is set according to actual needs.

[0032] The water outlet assembly 700 also includes a water outlet 701 and a water outlet pipe 702 connected to each other. The water outlet 701 is arranged on one side of the saw blade 100 and is located below the transmission assembly 300. The water outlet 701 is used to water the saw blade 100, and the water outlet pipe 702 is connected to an external water source. Of course, the water pressure outputted by the water outlet 701 can also be provided by the external water source. The water guide assembly 800 includes a water guide plate 801 and a partition plate 802; wherein the water guide plate 801 and the partition plate 802 are mutually fitted and arranged in the ring of the saw blade 100, and the cut-out portion of the water guide plate 801 along the edge is fitted with the partition plate 802 to form a guide portion 803. After the water flows out through the water outlet 701, part of it passes through the guide function of the guide portion 803 and flows to the saw blade 100 along the direction of the guide.

[0033] In this embodiment, the inner tooth ring cutting machine also includes a housing 900, a handheld part 1000 and a handle 1100. It should be noted that the housing 900 is used for the bearing and fixed installation of the saw blade 100, the driving gear 200, the transmission assembly 300 and the output assembly 400, the water retaining assembly 600, the water outlet assembly 700 and the water guide assembly 800 in this embodiment, as well as the installation of other components, circuits and motors involved in the inner tooth ring cutting machine. For example, in this embodiment, power supplies, switches, circuits, etc. must also be included. Ordinary technicians in this field can fully refer to the existing technology to achieve them, which is not the core of this embodiment. Therefore, the installation, the rotation of the motor, how to control it, how to cut, etc. are non-essential technical features, so they are not described in detail. The handheld part 1000 and the handle 1100 are also used for stable hand-held operation of the inner tooth ring cutting machine during operation.

[0034] The cutting method of the internal gear ring cutter proposed in this embodiment is as follows: open the output component 400 so that the output shaft 401 and the second bevel gear 402 rotate synchronously; then the first bevel gear 302 and the second bevel gear 402 cooperate to rotate synchronously; the first bevel gear 302, the transmission shaft 301 and the driving gear 200 rotate synchronously, and the driving gear 200 drives the saw blade 100 to rotate; open the water outlet 701 to continuously water the saw blade 100 until the cutting operation is completed and closed.

[0035] Reference Figure 5-6The diagram shows the original hard friction method of the cutting machine, which includes a slicer 1200, an adjusting roller 1300 and a friction wheel 1400. The outer edge of the friction wheel 1400 has a concave track, and the inner edge of the slicer 1200 has an annular strip protrusion. The annular strip protrusion and the concave track on the friction wheel 1400 are in conflict with each other. Relying on the friction force, when the friction wheel 1400 is driven to rotate, the slicer 1200 is driven to rotate. In this case, the annular strip protrusion and the concave track need to be constantly in conflict and pressed to effectively transmit the rotation. Therefore, under the existing hard friction method, as the wear increases with time and the number of uses, it is necessary to continuously adjust the adjusting knob 1302 on the original adjusting roller 1300 to adjust the position of the slice 1200 along the guide component 1301. Finally, the fine-tuning knob 1303 is required to achieve the best transmission effect.

[0036] Because the original cutting machine is a hard friction type, it is easy to wear the slice 1200, and the blade needs to be replaced frequently. At the same time, due to the problem of wear, the position distance of the blade needs to be adjusted at any time, and both sides need to be adjusted to the appropriate position at the same time. Each adjustment brings great inconvenience to the user. Each time, a suitable point needs to be found. If a suitable point cannot be found, the slice 1200 can also rotate, but the cutting effect is very poor. Therefore, it is a necessary step to find a suitable point each time, which is very troublesome to use. If the force point is not adjusted properly during use, it will also change, causing the slice 1200 to suddenly get stuck and not move. However, the internal tooth ring cutting machine proposed in this embodiment overcomes the above defects. The side guide wheel is fixed and does not need to be adjusted after the blade is replaced. Therefore, there is no need to set the guide component 1301, the adjustment knob 1302 and the fine-tuning knob 1303 on the clamping wheel 500, which improves convenience and speed.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the protection scope of the present invention. For ordinary technicians in this field, other different forms of changes or modifications can be made based on the above description and ideas. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the technical solution of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An internal gear ring cutting machine, characterized in that: include, A saw blade (100), the saw blade (100) is annular and comprises external teeth (101) arranged on the outer edge and internal teeth (102) arranged on the inner edge, the external teeth (101) being used for cutting; A driving gear (200), the inner teeth (102) meshing with the driving gear (200); A transmission assembly (300), the transmission assembly (300) comprising a transmission shaft (301) and a first bevel gear (302), the driving gear (200) and the first bevel gear (302) being fixedly arranged at two ends of the transmission shaft (301) respectively; The output assembly (400) comprises an output shaft (401) and a second bevel gear (402) which are fixedly connected, and the first bevel gear (302) and the second bevel gear (402) are meshed and transmitted.

2. The internal tooth ring cutting machine according to claim 1, characterized in that: Tracks (103) in the form of annular grooves are provided along the two ring sides of the saw blade (100).

3. The internal tooth ring cutting machine according to claim 2, characterized in that: It comprises a clamping wheel (500), the surface of which is provided with a protrusion (501), two clamping wheels (500) are fixedly arranged on two side surfaces of the saw blade (100) as a group, and the protrusion (501) is pressed into the track (103) to roll.

4. The internal tooth ring cutting machine according to claim 1, characterized in that: It comprises a water retaining assembly (600) arranged on the side edge of the saw blade (100), and the water retaining assembly (600) comprises an upper water retaining plate (601) and a lower water retaining plate (602) which are arranged in an inverted manner.

5. The internal tooth ring cutting machine according to claim 1, characterized in that: It comprises a water outlet assembly (700), wherein the water outlet assembly (700) further comprises a water outlet (701) and a water outlet pipe (702) connected to each other; The water outlet (701) is arranged on one side of the saw blade (100) and is located below the transmission assembly (300).

6. The internal tooth ring cutting machine according to claim 1, characterized in that: It comprises a water guide assembly (800), wherein the water guide assembly (800) comprises a water guide plate (801) and a partition plate (802); The water guide plate (801) and the partition plate (802) are arranged in a mutually fitted manner within the ring of the saw blade (100), and the portion of the water guide plate (801) cut inward along the edge is fitted with the partition plate (802) to form a guide portion (803).

7. The internal tooth ring cutting machine according to claim 1, characterized in that: It also includes a housing (900), a handheld portion (1000) and a handle (1100).

8. The internal tooth ring cutting machine according to claim 3, characterized in that: The tracks (103) are two concentrically arranged on the side surface of the saw blade (100).

9. The internal tooth ring cutting machine according to claim 3, characterized in that: The protrusions (501) are two annular strip protrusions arranged at intervals, and the interval distance corresponds to the interval distance of the two tracks (103). The two protrusions (501) are respectively located in the two tracks (103) and roll.

10. The internal tooth ring cutting machine according to claim 3, characterized in that: The clamping wheels (500) are divided into two groups, which are respectively located above and below the driving gear (200).

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