Self-walking auxiliary cutting device of cutting saw

Abstract

The invention discloses a self-walking auxiliary cutting device of a cutting saw, belongs to the field of cutting saws, solves the problem that the application range of the cutting saw in the prior art is narrow, and adopts the technical scheme that the self-walking auxiliary cutting device comprises walking wheels arranged on the cutting saw; the cutting saw is further provided with an adjusting mechanism, a driving part used for driving the walking wheels and a wheel shaft used for installing the walking wheels, a first transmission part and a second transmission part are arranged between an output shaft of the driving part and the wheel shaft, and the adjusting mechanism is used for enabling the first transmission part and the second transmission part to be connected or separated. The application range of the cutting saw is wider.

Description

Technical Field

[0001] The invention relates to the field of cutting saws, in particular to a self-propelled auxiliary cutting device for a cutting saw. Background Art

[0002] When using the cutting saws currently on the market, the cutting saws themselves are relatively heavy. When cutting, the user needs to push or pull the machine vigorously, and also needs to control the cutting depth, which can easily cause work fatigue and loss of strength. For this reason, there are utility model patents such as CN217942042U in the prior art that disclose a cutting saw, on which a driving wheel is provided, and the user can manually move the cutting saw during the cutting process. Of course, there are also utility model patents such as CN218027103U that disclose a crawler self-propelled road rope saw cutting machine, on which a moving crawler and a power motor are provided, and the power motor drives the moving crawler to make the cutting saw move automatically. However, the above-mentioned cutting saw can only meet the needs of specific scenarios, and cannot flexibly switch between manual and electric walking, thereby limiting the application scope of the equipment. Summary of the invention

[0003] The purpose to be achieved by the present invention is to provide a self-propelled auxiliary cutting device for a cutting saw, which solves the problem of the narrow application range of the cutting saw in the prior art and makes the application range of the cutting saw wider.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a self-propelled auxiliary cutting device for a cutting saw, comprising a walking wheel arranged on the cutting saw, the cutting saw is also provided with an adjustment mechanism, a driving member for driving the walking wheel and a wheel axle for installing the walking wheel, a first transmission member and a second transmission member are provided between the output shaft of the driving member and the wheel axle, and the adjustment mechanism is used to make the first transmission member engage or disengage with the second transmission member.

[0005] After adopting the above technical solution, the present invention has the following advantages: first, by setting the walking wheels, the cutting saw can slide on the ground more easily, reducing the force that the user needs to apply, greatly reducing the user's work intensity, and making cutting more convenient; secondly, through the adjustment mechanism, the adjustment mechanism is used to make the first transmission member move to engage or disengage with the second transmission member, and the cutting saw can be freely switched between manual and electric walking to meet a variety of operating requirements, making the cutting saw have a wider range of applications.

[0006] Furthermore, the first transmission member is slidably disposed on the output shaft of the driving member, and a connecting key for limiting the rotation of the first transmission member is disposed on the output shaft of the driving member. The first transmission member moves linearly on the output shaft of the driving member driven by the adjusting mechanism.

[0007] By adopting the above-mentioned technical solution, the rotation of the first transmission member is limited by the connecting key, so that the accurate position of the first transmission member on the output shaft is ensured as much as possible. The adjustment mechanism drives the first transmission member to move linearly on the output shaft, so that the transmission member can be connected and separated more accurately and quickly, thereby ensuring the reliability and stability of the transmission process as much as possible, and making the mode switching simple and intuitive.

[0008] Furthermore, the adjustment mechanism includes a fork installed on the first transmission member and an adjustment rod for connecting the fork, the first transmission member is provided with a first mounting groove for limiting the axial movement of the fork along the output shaft of the driving member, the fork body of the fork is installed in the first mounting groove and is rotatably connected to the first transmission member, and the adjustment rod is used to drive the fork to move linearly along the output shaft of the driving member.

[0009] By adopting the above-mentioned technical solution, the shift fork is rotationally connected to the first transmission member, and moves axially along the output shaft of the driving member in the first mounting groove. In both modes, the shift fork will not interfere with the normal rotation of the output shaft of the driving member, thereby ensuring the normal operation of the driving member as much as possible. The user only needs to operate the adjusting lever to complete the switching.

[0010] Furthermore, an adjusting knob is connected to the adjusting rod, and the adjusting rod is threadedly connected to the housing of the cutting saw. The adjusting rod is provided with a second mounting groove for limiting the axial movement of the shift fork along the adjusting rod, and the shaft of the shift fork is installed in the second mounting groove and is rotatably connected to the adjusting rod, and the rotational movement of the adjusting knob drives the shift fork to move linearly.

[0011] With the above technical solution, the traditional adjustment mechanism may need to be pushed, pulled or knocked manually, which is not precise enough and prone to errors. By driving the fork to move linearly through the rotation of the adjustment knob, more precise control can be achieved, and the threaded connection can also play a self-locking role on the adjusted adjustment rod, minimizing the loosening of the adjustment rod.

[0012] Furthermore, the second transmission member is rotatably connected to the output shaft of the driving member, and the second transmission member is transmission-connected to the wheel axle via a transmission assembly.

[0013] Through the above technical solution, precise transmission control can be achieved through the transmission connection between the transmission assembly and the wheel axle, ensuring that the cutting saw runs smoothly in electric mode, and the transmission direction can also be changed to meet the different installation positions of the wheel axle and the second transmission component.

[0014] Furthermore, the transmission assembly includes a first gear and a second gear meshing with each other, the first gear and the second transmission member are fixedly connected, the second gear and the axle are fixedly connected, and the diameter of the first gear is smaller than the diameter of the second gear.

[0015] Through the above technical solution, a larger transmission ratio can be achieved by driving the large gear with the small gear, thereby increasing the output torque. This enables the driving member to provide a greater thrust, pushing the heavy-duty cutting saw as far as possible, and reducing the physical burden of the user.

[0016] Furthermore, the first gear is provided with a connecting portion fixedly connected to the second transmission member, and the connecting portion is mounted on the cutting saw via a bearing.

[0017] Through the above technical solution, the first gear is fixedly connected to the second transmission member through a connecting part and is installed on the cutting saw through a bearing, thereby ensuring the accuracy and stability of the transmission, reducing vibration and shaking during the transmission process, and improving the operating stability of the cutting saw.

[0018] Furthermore, the wheel axle and the output shaft of the driving member are arranged crosswise, and the first gear and the second gear are bevel gears and / or bevel gear rings.

[0019] Through the above technical solution, by cross-setting the output shaft of the wheel axle and the driving member and using bevel gears and bevel gear rings, spatially staggered transmission can be achieved, which makes the internal layout of the cutting saw more flexible, can better adapt to different equipment structures and working environments, and has a more compact structure.

[0020] Furthermore, one of the first transmission member and the second transmission member is provided with a slot, and the other is provided with a protrusion, and the adjustment mechanism drives the first transmission member to move along the axis of the output shaft so that the protrusion can be inserted into or out of the slot.

[0021] Through the above technical solution, the design of the slot and the protrusion simplifies the structure of the transmission system. When the adjustment mechanism drives the first transmission member to move, the protrusion can be quickly inserted into or out of the slot, thereby achieving faster switching.

[0022] Furthermore, the cutting saw is also provided with an acceleration / deceleration switch for controlling the output speed of the driving member.

[0023] Through the above technical solution, the design of the acceleration and deceleration switch allows the user to adjust the moving speed of the cutting saw at any time according to the actual working conditions, thereby improving the flexibility of operation and adapting to different working environments and people. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings:

[0025] Figure 1 It is a structural schematic diagram of the self-propelled auxiliary cutting device of the cutting saw of the present invention;

[0026] Figure 2 An exploded view of the self-propelled auxiliary cutting device of the cutting saw of the present invention;

[0027] Figure 3 A cross-sectional view of the self-propelled auxiliary cutting device of a cutting saw according to the present invention;

[0028] Figure 4 For the present invention Figure 3 A magnified view of the structure at center;

[0029] Figure 5 It is a partial structural schematic diagram of the self-propelled auxiliary cutting device of the cutting saw of the present invention;

[0030] Figure 6 It is a partial structural schematic diagram of the self-propelled auxiliary cutting device of the cutting saw of the present invention from another perspective;

[0031] Figure 7 It is a partial structural exploded view of the self-propelled auxiliary cutting device of the cutting saw of the present invention;

[0032] Figure 8 It is a partial structural schematic diagram of the self-propelled auxiliary cutting device of the cutting saw of the present invention;

[0033] Fig. 9 It is a schematic structural diagram of a driving member of the present invention;

[0034] Fig.10 It is a structural schematic diagram of the adjustment rod of the present invention;

[0035] Fig.11 is a schematic structural diagram of the first gear of the present invention;

[0036] In the figure, 10, cutting saw; 11, saw blade; 12, handheld part; 13, opening;

[0037] 20. Traveling wheel; 21. Wheel axle;

[0038] 30. driving member; 31. output shaft;

[0039] 40, first transmission member; 401, first mounting groove; 402, clamping groove; 41, second transmission member; 411, protrusion; 42, first gear; 421, connecting part; 43, second gear; 44, bearing;

[0040] 50. Connecting key; 51. Shift fork; 511. Fork portion; 512. Shaft portion; 52. Adjusting rod; 521. Threaded section; 522. Second mounting groove; 53. Adjusting knob; 54. Circlip. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions 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. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein.

[0043] It should be understood that in various embodiments of the present invention, the size of the serial numbers of the processes does not mean the order of execution. The execution order of the processes should be determined by their functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0044] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0045] It should be understood that in the present invention, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0046] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0047] like Figures 1 to 11 As shown, the present invention provides a self-propelled auxiliary cutting device for a cutting saw, including a walking wheel 20 arranged on the cutting saw 10, and the cutting saw 10 is also provided with an adjusting mechanism, a driving member 30 for driving the walking wheel 20 and a wheel axle 21 for installing the walking wheel 20, and a first transmission member 40 and a second transmission member 41 are provided between the output shaft 31 of the driving member 30 and the wheel axle 21, and the adjusting mechanism is used to make the first transmission member 40 engage or disengage with the second transmission member 41.

[0048] Firstly, by setting the travel wheel 20, the cutting saw 10 can slide on the ground more easily, reducing the force that the user needs to apply, greatly reducing the user's work intensity, and making cutting more convenient. Secondly, through the adjustment mechanism, the adjustment mechanism is used to move the first transmission member 40 to engage or disengage with the second transmission member 41. The cutting saw 10 can freely switch between manual and electric travel to meet a variety of operating requirements, making the cutting saw 10 more widely applicable.

[0049] The cutting saw 10 includes a saw blade 11 , and is also provided with a handle 12 , which facilitates a user to lift or push the cutting saw 10 .

[0050] In the prior art, switching modes usually requires disassembly and reinstallation of transmission components, which is cumbersome and time-consuming. Therefore, in the present invention, the first transmission member 40 is slidably disposed on the output shaft 31 of the driving member 30, and the second transmission member 41 rotates synchronously with the axle 21. The output shaft 31 of the driving member 30 is provided with a connecting key 50 for limiting the rotation of the first transmission member 40. The first transmission member 40 moves linearly on the output shaft 31 of the driving member 30 driven by the adjustment mechanism. The rotation of the first transmission member 40 is limited by the connecting key 50, and the precise position of the first transmission member 40 on the output shaft 31 is ensured as much as possible. The adjustment mechanism drives the first transmission member 40 to move linearly on the output shaft 31, which can achieve more accurate and faster docking and separation of the first transmission member 40 and the second transmission member 41, and ensure the reliability and stability of the transmission process as much as possible, and also make the mode switching simple and intuitive.

[0051] Specifically, the first transmission member 40 is provided with a slot 402, and the second transmission member 41 is provided with a protrusion 411, which simplifies the structure of the transmission system. The adjustment mechanism drives the first transmission member 40 to move along the axis of the output shaft 31 so that the protrusion 411 can be inserted into or out of the slot 402 to achieve faster switching.

[0052] And, the adjustment mechanism includes a shift fork 51 installed on the first transmission member 40 and an adjustment rod 52 for connecting the shift fork 51. In order to prevent the shift fork 51 from interfering with the rotation of the output shaft 31 of the driving member 30, in the present invention, a first installation groove 401 is provided on the first transmission member 40 to limit the axial movement of the shift fork 51 along the output shaft 31 of the driving member 30, the fork body of the shift fork 51 is installed in the first installation groove 401 and is rotationally connected with the first transmission member 40, and the adjustment rod 52 is used to drive the shift fork 51 to move linearly along the output shaft 31 of the driving member 30. In both modes, the shift fork 51 will not interfere with the normal rotation of the output shaft 31 of the driving member 30, and the normal operation of the driving member 30 is ensured as much as possible, and the user only needs to operate the adjustment rod 52 to complete the switching.

[0053] Traditional adjustment mechanisms may require manual pushing, pulling or tapping, and the control is not precise enough and prone to errors. For this reason, in the present invention, an adjustment knob 53 is connected to the adjustment rod 52, and the adjustment rod 52 is threadedly connected to the housing of the cutting saw 10. The adjustment rod 52 is provided with a second mounting groove 522 that limits the axial movement of the fork 51 along the adjustment rod 52. The shaft 512 of the fork 51 is installed in the second mounting groove 522 and is rotationally connected to the adjustment rod 52. The rotation of the adjustment knob 53 drives the fork 51 to move linearly. More precise control can also be achieved, and the threaded connection can also play a self-locking role on the adjusted adjustment rod 52, minimizing the loosening of the adjustment rod 52.

[0054] The adjusting rod 52 is provided with a threaded section 521 , and the cutting saw 10 is provided with a matching portion threadably connected to the threaded section 521 .

[0055] For the convenience of adjustment, the cutting saw 10 is provided with an opening 13 through which the adjusting knob 53 is exposed, so that the user can intuitively see the position of the adjusting knob 53 and realize mode switching by rotating the adjusting knob 53 .

[0056] In order to make the shaft portion 512 of the fork 51 more reliably installed, an elastic retaining ring 54 is further provided on the adjusting rod 52. The elastic retaining ring 54 is installed between the shaft portion 512 of the fork 51 and the groove wall of the second installation groove 522 to play a shock absorbing role.

[0057] It should be noted that in the present invention, the shaft portion 512 of the shift fork 51 is provided with a mounting hole, and the shaft portion 512 of the shift fork 51 is inserted into the second mounting groove 522 of the adjusting rod 52 to achieve installation.

[0058] Due to the limited internal space of the prior art cutting saw 10, the wheel axle 21 and the second transmission member 41 are installed at different positions. For easy installation, the second transmission member 41 is rotatably connected to the output shaft 31 of the driving member 30. The second transmission member 41 is connected to the wheel axle 21 through a transmission assembly. By selecting a suitable transmission assembly, the transmission direction can be changed to meet the different installation positions of the wheel axle 21 and the second transmission member 41. It can also achieve precise transmission control to ensure that the cutting saw 10 runs smoothly in the electric mode.

[0059] Preferably, the transmission assembly includes a first gear 42 and a second gear 43 meshing with each other, the first gear 42 and the second transmission member 41 are fixedly connected, and the second gear 43 is fixedly connected to the axle 21. The structure is relatively simple and the transmission is relatively stable.

[0060] Since the cutting saw 10 is usually heavy, in the present invention, the diameter of the first gear 42 is smaller than the diameter of the second gear 43. By driving the large gear with the small gear, a larger transmission ratio can be achieved, thereby increasing the output torque. This enables the driving member 30 to provide a greater thrust, pushing the heavy cutting saw 10 as much as possible, and reducing the physical burden of the user.

[0061] The wheel shaft 21 and the output shaft 31 of the driving member 30 are arranged crosswise, the first gear 42 is a bevel gear, and the second gear 43 is a bevel gear ring. This makes the internal layout of the cutting saw 10 more flexible, the transmission direction can also be changed, and it can better adapt to different equipment structures and working environments, and the structure is more compact.

[0062] In order to improve the transmission stability, the first gear 42 is provided with a connecting portion 421 fixedly connected to the second transmission member 41, and the connecting portion 421 is installed on the cutting saw 10 through a bearing 44. The accuracy and stability of the transmission are ensured, the vibration and shaking during the transmission process are reduced, and the operation stability of the cutting saw 10 is improved.

[0063] The conventional cutting saw 10 may have only one fixed driving speed and cannot be adjusted according to actual needs. Therefore, in the present invention, the cutting saw 10 is also provided with an acceleration / deceleration switch for controlling the output speed of the driving member 30. The design of the acceleration / deceleration switch allows the user to adjust the moving speed of the cutting saw 10 at any time according to the actual working conditions, thereby improving the flexibility of operation and adapting to different working environments and people.

[0064] During use, if the cutting saw 10 needs to be pushed manually, by rotating the adjusting knob 53, the shift fork 51 drives the first transmission member 40 to move along the axis of the output shaft 31 away from the second transmission member 41, so that the slot 402 of the first transmission member 40 is disengaged from the protrusion 411 of the second transmission member 41, thereby realizing manual pushing of the cutting saw 10 and sliding on the ground through the walking wheel 20.

[0065] If the cutting saw 10 needs to be driven electrically, the adjusting knob 53 is rotated in the opposite direction, and the shift fork 51 drives the first transmission member 40 to move along the direction axis of the output shaft 31 close to the second transmission member 41, so that the card slot 402 of the first transmission member 40 and the protrusion 411 of the second transmission member 41 are engaged, and the power of the driving member 30 is turned on, and the driving member 30 starts to work. Through the transmission of the first gear 42 and the second gear 43, the drive shaft 21 rotates, and the cutting saw 10 automatically moves. In the electric mode, the speed of the cutting saw 10 is adjusted by the acceleration and deceleration switch according to actual needs.

[0066] It should be noted that the driving member 30 may be a motor.

[0067] It can be understood that in other embodiments, the adjustment structure can also drive the second transmission member to move to engage with or disengage from the first transmission member to achieve switching between manual propulsion and electric propulsion.

[0068] It can be understood that in other embodiments, the adjustment structure can also drive the first transmission member and the second transmission member to move simultaneously, so that the first transmission member and the second transmission member are engaged or disengaged, so as to achieve the switching between manual propulsion and electric propulsion.

[0069] It is understandable that in other embodiments, the first transmission member may also cooperate with the output shaft spline of the driving member or the non-circular hole and the non-circular segment to achieve linear movement of the first transmission member on the output shaft while limiting the rotation of the first transmission member.

[0070] It is understandable that in other embodiments, a transmission mechanism may be provided between the output shaft of the driving member and the wheel axle, and the first transmission member and the second transmission member may be provided on the transmission mechanism. Of course, the first transmission member or the second transmission member may also be provided directly on the traveling wheel, and the positions of the first transmission member and the second transmission member may be arranged according to different machine models, so as to realize transmission while making the structure of the self-propelled auxiliary cutting device of the cutting saw more compact.

[0071] It is understandable that in other embodiments, the second transmission member is provided with a slot, and the first transmission member is provided with a protrusion, and the protrusion can be inserted into the slot. The design of the slot and the protrusion simplifies the structure of the transmission system, and when the adjustment mechanism drives the first transmission member to move, the protrusion can be quickly inserted into or out of the slot, thereby achieving faster switching.

[0072] It is understandable that in other embodiments, the transmission assembly may also be a belt drive or the like, which makes the transmission smoother.

[0073] It is understandable that in other embodiments, the first gear and the second gear may both be bevel gears. In addition to the above preferred embodiments, the present invention has other implementations. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection requested by the present invention.

Claims

1. A self-propelled auxiliary cutting device for a cutting saw, comprising a travel wheel (20) arranged on a cutting saw (10), characterized in that: The cutting saw (10) is also provided with an adjustment mechanism, a driving member (30) for driving a traveling wheel (20) and a wheel axle (21) for mounting the traveling wheel (20); a first transmission member (40) and a second transmission member (41) are provided between an output shaft (31) of the driving member (30) and the wheel axle (21); and the adjustment mechanism is used to enable the first transmission member (40) to engage with or disengage from the second transmission member (41).

2. The self-propelled auxiliary cutting device for cutting saws according to claim 1, characterized in that: The first transmission member (40) is slidably arranged on the output shaft (31) of the driving member (30); a connecting key (50) for limiting the rotation of the first transmission member (40) is provided on the output shaft (31) of the driving member (30); the first transmission member (40) moves linearly on the output shaft (31) of the driving member (30) driven by the adjusting mechanism.

3. The self-propelled auxiliary cutting device for cutting saws according to claim 2, characterized in that: The adjusting mechanism comprises a shift fork (51) mounted on the first transmission member (40) and an adjusting rod (52) used to connect the shift fork (51); the first transmission member (40) is provided with a first mounting groove (401) for limiting the axial movement of the shift fork (51) along the output shaft (31) of the driving member (30); the fork body of the shift fork (51) is installed in the first mounting groove (401) and is rotationally connected to the first transmission member (40); the adjusting rod (52) is used to drive the shift fork (51) to move linearly along the output shaft (31) of the driving member (30).

4. The self-propelled auxiliary cutting device for cutting saws according to claim 3, characterized in that: The adjusting rod (52) is connected to an adjusting knob (53), the adjusting rod (52) is threadedly connected to a housing of a cutting saw (10), the adjusting rod (52) is provided with a second mounting groove (522) for limiting the axial movement of the shift fork (51) along the adjusting rod (52), the shaft (512) of the shift fork (51) is inserted into the second mounting groove (522) and is rotationally connected to the adjusting rod (52), and the rotational movement of the adjusting knob (53) drives the shift fork (51) to perform linear movement.

5. The self-propelled auxiliary cutting device for cutting saws according to claim 1, characterized in that: The second transmission member (41) is rotatably connected to the output shaft (31) of the driving member (30), and the second transmission member (41) is transmission-connected to the wheel shaft (21) via a transmission assembly.

6. The self-propelled auxiliary cutting device for a cutting saw according to claim 5, characterized in that: The transmission assembly comprises a first gear (42) and a second gear (43) meshing with each other, the first gear (42) and the second transmission member (41) are fixedly connected, the second gear (43) and the axle (21) are fixedly connected, and the diameter of the first gear (42) is smaller than the diameter of the second gear (43).

7. The self-propelled auxiliary cutting device for a cutting saw according to claim 6, characterized in that: The first gear (42) is provided with a connecting portion (421) fixedly connected to the second transmission member (41); the connecting portion (421) is mounted on the cutting saw (10) via a bearing (44).

8. The self-propelled auxiliary cutting device for a cutting saw according to claim 6, characterized in that: The wheel axle (21) and the output shaft (31) of the driving member (30) are arranged crosswise, and the first gear (42) and the second gear (43) are bevel gears and / or bevel gear rings.

9. The self-propelled auxiliary cutting device for a cutting saw according to any one of claims 1 to 8, characterized in that: One of the first transmission member (40) and the second transmission member (41) is provided with a slot (402), and the other is provided with a protrusion (411); the adjustment mechanism drives the first transmission member (40) to move along the axis of the output shaft (31) so that the protrusion (411) is inserted into or removed from the slot (402).

10. The self-propelled auxiliary cutting device for a cutting saw according to claim 1, characterized in that: The cutting saw (10) is also provided with an acceleration / deceleration switch for controlling the output speed of the driving member (30).

Images