Self-walking auxiliary cutting device of cutting saw

Abstract

The utility model discloses a self-walking auxiliary cutting device of a cutting saw, which belongs to the field of cutting saws, solves the problem of narrow application range of the cutting saw in the prior art, 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. According to the cutting saw, the application range of the cutting saw is wider.

Description

Technical Field

[0001] This utility model relates to the field of cutting saws, and in particular to a self-propelled auxiliary cutting device for cutting saws. Background Technology

[0002] Currently, cutting saws on the market are quite heavy, requiring users to push or pull the machine forcefully during cutting and control the cutting depth, which can easily lead to worker fatigue and loss of strength. To address this, existing technologies, such as the utility model patent CN217942042U, disclose a cutting saw with drive wheels, allowing the user to manually move the saw during cutting. Similarly, utility model patent CN218027103U discloses a tracked self-propelled road wire saw cutting machine, which features a moving track and a power motor on the cutting saw, with the motor driving the track to enable automatic movement. However, these cutting saws only meet the needs of specific scenarios and cannot flexibly switch between manual and electric movement, thus limiting the application range of the equipment. Utility Model Content

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

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a self-propelled auxiliary cutting device for a cutting saw, comprising a traveling wheel mounted on the cutting saw, the cutting saw further comprising an adjustment mechanism, a driving component for driving the traveling wheel, and a wheel axle for mounting the traveling wheel, wherein a first transmission component and a second transmission component are provided between the output shaft of the driving component and the wheel axle, and the adjustment mechanism is used to engage or disengage the first transmission component and the second transmission component.

[0005] After adopting the above technical solution, this utility model has the following advantages: First, by setting the walking wheels, the cutting saw can slide more easily on the ground, reducing the force required by the user, greatly reducing the user's workload, and making cutting more convenient. Second, through the adjustment mechanism, which is used to engage or disengage the movement of the first transmission component with the second transmission component, the cutting saw can freely switch between manual and electric walking to meet various operational needs and make the cutting saw more widely applicable.

[0006] Furthermore, the first transmission component is slidably mounted on the output shaft of the drive component, and the output shaft of the drive component is provided with a connecting key that restricts the rotation of the first transmission component. The first transmission component moves linearly on the output shaft of the drive component under the drive of the adjustment mechanism.

[0007] By adopting the aforementioned technical solution, the rotation of the first transmission component is restricted by the connecting key, which ensures the precise position of the first transmission component on the output shaft as much as possible. The adjustment mechanism drives the first transmission component to make linear motion on the output shaft, which can realize more precise and faster docking and separation of the transmission component, ensure the reliability and stability of the transmission process as much as possible, and also make mode switching simple and intuitive.

[0008] Furthermore, the adjustment mechanism includes a shift fork mounted on the first transmission member and an adjustment rod for connecting the shift fork. The first transmission member is provided with a first mounting groove that restricts the shift fork from moving axially along the output shaft of the drive member. The fork body of the shift fork is inserted into the first mounting groove and rotatably connected to the first transmission member. The adjustment rod is used to drive the shift fork to move linearly along the output shaft of the drive member.

[0009] Using the aforementioned technical solution, the shift fork is rotatably connected to the first transmission component and moves axially along the output shaft of the drive component within the first mounting groove. In both modes, the shift fork will not interfere with the normal rotation of the output shaft of the drive component, thus ensuring the normal operation of the drive component as much as possible. Users only need to operate the adjustment lever to complete the switching.

[0010] Furthermore, an adjustment knob is connected to the adjustment rod, the adjustment rod is threadedly connected to the housing of the cutting saw, and the adjustment rod is provided with a second mounting groove that restricts the movement of the shift fork along the axial direction of the adjustment rod. The shaft of the shift fork is inserted into the second mounting groove and is rotatably connected to the adjustment rod. The rotation of the adjustment knob drives the shift fork to make linear motion.

[0011] Using the aforementioned technical solution, traditional adjustment mechanisms may require manual pushing, pulling, or tapping, resulting in imprecise control and a tendency to make mistakes. By rotating the adjustment knob to drive the shift fork in a linear motion, more precise control can be achieved. The threaded connection also provides a self-locking effect on the adjusted rod after adjustment, minimizing the possibility of the rod becoming loose.

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

[0013] Through the above technical solution, precise transmission control can be achieved by connecting the transmission component with the wheel and axle, ensuring that the cutting saw runs smoothly in electric mode. It can also change the transmission direction to meet different installation positions of the wheel and axle and the second transmission component.

[0014] Furthermore, the transmission assembly includes a first gear and a second gear that mesh with each other, the first gear and the second transmission component 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] The above technical solution achieves a larger transmission ratio by using a small gear to drive a large gear, thereby increasing the output torque. This allows the drive unit to provide greater thrust, propelling heavy-duty cutting saws as much as possible while reducing the physical burden on the user.

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

[0017] The above technical solution securely connects the first gear and the second transmission component through the connecting part and mounts them on the cutting saw through bearings, ensuring the accuracy and stability of the transmission, reducing vibration and shaking during the transmission process, and improving the operational stability of the cutting saw.

[0018] Furthermore, the axle and the output shaft of the drive are arranged in an intersecting manner, and the first gear and the second gear are bevel gears and / or bevel gear rings.

[0019] Through the above technical solution, by intersecting the output shafts of the wheel axle and the drive component, and using bevel gears and bevel gear rings, spatially staggered transmission can be achieved. This makes the internal layout of the cutting saw more flexible, better adaptable to different equipment structures and working environments, and more compact in structure.

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

[0021] The above technical solution simplifies the structure of the transmission system by designing the slot and the protrusion. When the adjustment mechanism drives the first transmission component to move, the protrusion can be quickly inserted into or disengaged from the slot, enabling faster switching.

[0022] Furthermore, the cutting saw is also equipped with an acceleration / deceleration switch to control the output speed of the drive component.

[0023] Through the above technical solution, the design of the acceleration / deceleration switch allows users to adjust the moving speed of the cutting saw at any time according to the actual working conditions, improving the flexibility of operation and adapting to different working environments and people. Attached Figure Description

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

[0025] Figure 1 This is a schematic diagram of the self-propelled auxiliary cutting device for the cutting saw of this utility model.

[0026] Figure 2 This is an exploded view of the self-propelled auxiliary cutting device for the cutting saw of this utility model;

[0027] Figure 3 This is a cross-sectional view of the self-propelled auxiliary cutting device for the cutting saw of this utility model;

[0028] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0029] Figure 5 This is a partial structural schematic diagram of the self-propelled auxiliary cutting device of the cutting saw of this utility model.

[0030] Figure 6 This is a partial structural schematic diagram of the self-propelled auxiliary cutting device of the cutting saw of this utility model from another perspective.

[0031] Figure 7 This is a partially exploded view of the self-propelled auxiliary cutting device for the cutting saw of this utility model;

[0032] Figure 8 This is a partial structural schematic diagram of the self-propelled auxiliary cutting device for the cutting saw of this utility model;

[0033] Figure 9 This is a schematic diagram of the structure of the driving component of this utility model;

[0034] Figure 10 This is a schematic diagram of the structure of the adjusting rod of this utility model;

[0035] Figure 11 This is a schematic diagram of the structure of the first gear of this utility model;

[0036] In the diagram, 10 is the cutting saw; 11 is the saw blade; 12 is the handle; and 13 is the opening.

[0037] 20. Wheels; 21. Axles;

[0038] 30. Driving component; 31. Output shaft;

[0039] 40. First transmission component; 401. First mounting groove; 402. Slot; 41. Second transmission component; 411. Protrusion; 42. First gear; 421. Connecting part; 43. Second gear; 44. Bearing;

[0040] 50. Connecting key; 51. Shift fork; 511. Fork section; 512. Shaft section; 52. Adjusting rod; 521. Threaded section; 522. Second mounting groove; 53. Adjusting knob; 54. Elastic retaining ring. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

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

[0043] It should be understood that in the various embodiments of this utility model, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this utility model.

[0044] It should be understood that in this invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0045] It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.

[0046] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0047] like Figures 1 to 11As shown, this utility model provides a self-propelled auxiliary cutting device for a cutting saw, including a traveling wheel 20 mounted on the cutting saw 10. The cutting saw 10 is also provided with an adjustment mechanism, a driving member 30 for driving the 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 the output shaft 31 of the driving member 30 and the wheel axle 21. The adjustment mechanism is used to engage or disengage the first transmission member 40 and the second transmission member 41.

[0048] First, by setting up the walking wheels 20, the cutting saw 10 can slide more easily on the ground, reducing the force required by the user and greatly reducing the user's workload, making cutting more convenient. Second, through the adjustment mechanism, which is used to engage or disengage the movement of the first transmission component 40 with the second transmission component 41, the cutting saw 10 can freely switch between manual and electric walking to meet various operational needs and make the cutting saw 10 more applicable.

[0049] The cutting saw 10 includes a saw blade 11 and a handle 12, which makes it convenient for users to lift or push the cutting saw 10.

[0050] In existing technologies, switching modes typically requires disassembling and reinstalling transmission components, which is cumbersome and time-consuming. Therefore, in this invention, the first transmission component 40 is slidably mounted on the output shaft 31 of the drive component 30, and the second transmission component 41 rotates synchronously with the axle 21. A connecting key 50 on the output shaft 31 of the drive component 30 restricts the rotation of the first transmission component 40. Driven by an adjusting mechanism, the first transmission component 40 moves linearly along the output shaft 31 of the drive component 30. By restricting the rotation of the first transmission component 40 with the connecting key 50, the precise position of the first transmission component 40 on the output shaft 31 is ensured as much as possible. The adjusting mechanism drives the first transmission component 40 to move linearly along the output shaft 31, enabling more precise and faster docking and disengagement of the first and second transmission components 40, ensuring the reliability and stability of the transmission process, and making mode switching simple and intuitive.

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

[0052] Furthermore, the adjustment mechanism includes a shift fork 51 mounted on the first transmission member 40 and an adjustment rod 52 for connecting the shift fork 51. To prevent the shift fork 51 from interfering with the rotation of the output shaft 31 of the drive member 30, the first transmission member 40 is provided with a first mounting groove 401 that restricts the axial movement of the shift fork 51 along the output shaft 31 of the drive member 30. The fork body of the shift fork 51 is inserted into the first mounting groove 401 and rotatably connected to the first transmission member 40. The adjustment rod 52 is used to drive the shift fork 51 to move linearly along the output shaft 31 of the drive member 30. In both modes, the shift fork 51 will not interfere with the normal rotation of the output shaft 31 of the drive member 30, ensuring the normal operation of the drive member 30 as much as possible. 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, resulting in imprecise control and a tendency to make mistakes. Therefore, in this invention, an adjustment knob 53 is connected to the adjustment rod 52. The adjustment rod 52 is threadedly connected to the housing of the cutting saw 10. The adjustment rod 52 has a second mounting groove 522 that restricts the axial movement of the shift fork 51. The shaft 512 of the shift fork 51 is inserted into the second mounting groove 522 and rotatably connected to the adjustment rod 52. The rotation of the adjustment knob 53 drives the shift fork 51 to move linearly. This allows for more precise control, and the threaded connection also provides a self-locking effect on the adjusted rod 52, minimizing the possibility of the adjustment rod 52 becoming loose.

[0054] The adjusting rod 52 is provided with a threaded section 521, and the cutting saw 10 is provided with a mating part that is threadedly connected to the threaded section 521.

[0055] For easy adjustment, the cutting saw 10 is provided with an opening 13 through which the adjustment knob 53 is exposed. Users can see the position of the adjustment knob 53 intuitively and switch modes by rotating the adjustment knob 53.

[0056] To make the installation of the shaft 512 of the shift fork 51 more reliable, an elastic retaining ring 54 is also provided on the adjusting rod 52. The elastic retaining ring 54 is installed between the shaft 512 of the shift fork 51 and the groove wall of the second mounting groove 522 to play a role in shock absorption.

[0057] It should be noted that in this utility model, 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 fitted into the second mounting groove 522 of the adjusting rod 52 to achieve installation.

[0058] Due to the limited internal space of the existing cutting saw 10, the installation positions of the axle 21 and the second transmission component 41 are different. To facilitate installation, the second transmission component 41 is rotatably connected to the output shaft 31 of the drive component 30. The second transmission component 41 is connected to the axle 21 via a transmission assembly. By selecting a suitable transmission assembly, the transmission direction can be changed to accommodate different installation positions of the axle 21 and the second transmission component 41. Precise transmission control can also be achieved, ensuring smooth operation of the cutting saw 10 in electric mode.

[0059] Preferably, the transmission assembly includes a first gear 42 and a second gear 43 that mesh with each other, the first gear 42 and the second transmission component 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 smooth.

[0060] Since the cutting saw 10 is typically heavy, in this invention, the diameter of the first gear 42 is smaller than the diameter of the second gear 43. By having the smaller gear drive the larger gear, a larger transmission ratio can be achieved, thereby increasing the output torque. This allows the drive unit 30 to provide greater thrust, propelling the heavy-duty cutting saw 10 as far as possible and reducing the physical burden on the user.

[0061] In this design, the axle 21 and the output shaft 31 of the drive unit 30 are arranged in a cross configuration. The first gear 42 is a bevel gear, and the second gear 43 is a bevel gear ring. This allows for a more flexible internal layout of the cutting saw 10, enables changes in the transmission direction, and better adapts to different equipment structures and working environments, resulting in a more compact structure.

[0062] To improve transmission stability, the first gear 42 is provided with a connecting part 421 that is fixedly connected to the second transmission component 41. The connecting part 421 is mounted on the cutting saw 10 via a bearing 44. This ensures the accuracy and stability of the transmission, reduces vibration and shaking during the transmission process, and improves the operational stability of the cutting saw 10.

[0063] Traditional cutting saws 10 may only have a fixed drive speed, which cannot be adjusted according to actual needs. Therefore, in this invention, the cutting saw 10 is also equipped with an acceleration / deceleration switch to control the output speed of the drive unit 30. The design of the acceleration / deceleration switch allows users to adjust the moving speed of the cutting saw 10 at any time according to actual working conditions, improving operational flexibility and adapting to different working environments and users.

[0064] When in use, if it is necessary to manually push the cutting saw 10, by rotating the adjustment knob 53, the shift fork 51 drives the first transmission component 40 to move along the output shaft 31 away from the second transmission component 41, so that the slot 402 of the first transmission component 40 disengages from the protrusion 411 of the second transmission component 41, thereby enabling the cutting saw 10 to be manually pushed and slide on the ground via the walking wheels 20.

[0065] If electric propulsion of the cutting saw 10 is required, the adjustment knob 53 is rotated in the opposite direction. The shift fork 51 drives the first transmission component 40 to move along the axis of the output shaft 31 towards the second transmission component 41, causing the slot 402 of the first transmission component 40 and the protrusion 411 of the second transmission component 41 to engage. The power to the drive component 30 is then turned on, and the drive component 30 begins to work. Through the transmission of the first gear 42 and the second gear 43, the drive axle 21 rotates, and the cutting saw 10 moves automatically. In electric mode, the travel speed of the cutting saw 10 can be adjusted using the acceleration / deceleration switch as needed.

[0066] It should be noted that the drive component 30 can be a motor.

[0067] Understandably, in other embodiments, the adjustment structure may also drive the second transmission member to engage or disengage with the first transmission member, thereby enabling switching between manual and electric actuation.

[0068] Understandably, in other embodiments, the adjustment structure may also simultaneously drive the first transmission member and the second transmission member to move, so that the first transmission member and the second transmission member engage or disengage, thereby achieving the switching between manual and electric drive.

[0069] Understandably, in other embodiments, the first transmission member may also be splined with the output shaft of the drive member or be fitted with a non-circular hole and a non-circular segment to enable the first transmission member to move linearly on the output shaft while restricting the rotation of the first transmission member.

[0070] Understandably, in other embodiments, a transmission mechanism can also be provided between the output shaft of the drive component and the wheel axle, with the first and second transmission components mounted on the transmission mechanism. Alternatively, the first or second transmission component can be directly mounted on the walking wheel. The positions of the first and second transmission components can be arranged according to different machine models, achieving transmission while making the self-propelled auxiliary cutting device of the cutting saw more compact.

[0071] Understandably, in other embodiments, the second transmission member is provided with a slot, and the first transmission member is provided with a protrusion, which can be inserted into the slot. The design of the slot and the protrusion simplifies the structure of the transmission system. When the adjusting mechanism drives the first transmission member to move, the protrusion can be quickly inserted into or disengaged from the slot, achieving faster switching.

[0072] Understandably, in other embodiments, the transmission component may also be a belt drive or similar method, resulting in smoother transmission.

[0073] It is understood that in other embodiments, both the first gear and the second gear may be bevel gears. Besides the preferred embodiments described above, this utility model has other implementations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection claimed by this utility model.

Claims

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

2. The self-propelled auxiliary cutting device for a cutting saw according to claim 1, characterized in that, The first transmission member (40) is slidably disposed on the output shaft (31) of the drive member (30). The output shaft (31) of the drive member (30) is provided with a connecting key (50) that restricts the rotation of the first transmission member (40). The first transmission member (40) moves linearly on the output shaft (31) of the drive member (30) under the drive of the adjustment mechanism.

3. The self-propelled auxiliary cutting device for a cutting saw according to claim 2, characterized in that, The adjustment mechanism includes a shift fork (51) mounted on the first transmission member (40) and an adjustment rod (52) for connecting the shift fork (51). The first transmission member (40) is provided with a first mounting groove (401) that restricts the shift fork (51) from moving axially along the output shaft (31) of the drive member (30). The fork body of the shift fork (51) is inserted into the first mounting groove (401) and rotatably connected to the first transmission member (40). The adjustment rod (52) is used to drive the shift fork (51) to move linearly along the output shaft (31) of the drive member (30).

4. The self-propelled auxiliary cutting device for a cutting saw according to claim 3, characterized in that, An adjustment knob (53) is connected to the adjustment rod (52). 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 restricts the movement of the shift fork (51) along the axial direction of the adjustment rod (52). The shaft (512) of the shift fork (51) is inserted into the second mounting groove (522) and is rotatably connected to the adjustment rod (52). The rotation of the adjustment knob (53) drives the shift fork (51) to make linear motion.

5. The self-propelled auxiliary cutting device for a cutting saw according to claim 1, characterized in that, The second transmission component (41) is rotatably connected to the output shaft (31) of the drive component (30), and the second transmission component (41) is connected to the wheel axle (21) through a transmission assembly.

6. The self-propelled auxiliary cutting device for a cutting saw according to claim 5, characterized in that, The transmission assembly includes a first gear (42) and a second gear (43) that mesh with each other. The first gear (42) and the second transmission component (41) are fixedly connected. The second gear (43) and the axle (21) are fixedly connected. 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 part (421) that is fixedly connected to the second transmission member (41), and the connecting part (421) is mounted on the cutting saw (10) through a bearing (44).

8. The self-propelled auxiliary cutting device for a cutting saw according to claim 6, characterized in that, The axle (21) and the output shaft (31) of the drive (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 equipped with an acceleration / deceleration switch to control the output speed of the drive unit (30).

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