Low-noise long-life rubber tapping equipment and working method

Abstract

The invention provides low-noise long-service-life rubber tapping equipment and a working method, relates to the field of rubber tapping equipment, and aims to solve the problems that in the prior art, due to the adoption of a discontinuous pulse impact transmission mode, mechanical vibration is violent, noise is high, and rubber tree section milk ducts are damaged due to friction impact heating. The speed reduction assembly and the reversing transmission assembly are combined, the rotating power of the motor is stably converted into the reciprocating linear motion of the blade fixing frame through continuous rotating sliding of the eccentric shaft in the guide sliding groove with the extending direction perpendicular to the moving direction, and the transmission mode based on continuous meshing and sliding fit is adopted; the mechanical vibration amplitude and the noise level in the equipment operation process are reduced, meanwhile, the local high-temperature accumulation phenomenon caused by high-frequency impact friction is effectively relieved, the risk of thermal damage to a rubber tree latex duct is reduced, the rubber discharging amount is guaranteed, the stress environment of a transmission part is optimized, and the service life of the transmission part is prolonged. And the durability and the service life of the equipment are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of rubber tapping equipment, specifically to a low-noise, long-life rubber tapping device and its working method. Background Technology

[0002] Currently, natural rubber harvesting primarily relies on rubber farmers using tapping knives to cut the bark of rubber trees to obtain the latex. With the development of agricultural mechanization, various electric tapping devices have been designed to reduce labor intensity and improve tapping efficiency. Existing electric tappers mainly employ flexible shaft drives or transmission structures based on the simple "convex impact" principle. These devices typically use a motor to drive the flexible shaft or utilize the instantaneous impact force of a cam to drive the cutter head, thus replacing manual operation to some extent and becoming a common tool in rubber plantations.

[0003] However, existing electric rubber tapping equipment has some unreasonable design flaws in its transmission mechanism. Equipment using convex impact or simple cam transmission operates in a discontinuous pulse-like motion, resulting in severe mechanical vibration and high-decibel noise during operation. This not only easily causes numbness in the operator's hands and auditory fatigue, but also causes rapid internal heating due to frequent hard impacts and high-frequency friction between transmission components. If this high temperature generated by friction is transferred to the cutter head, it will directly burn the latex tubes of the rubber tree, causing the latex on the cut surface to solidify and severely affecting the latex output. Furthermore, non-rigid or impact-type transmission structures wear out quickly, have a high failure rate, and are difficult to control due to frictional heat generation, making it difficult to meet the needs of high-intensity, long-cycle continuous rubber tapping operations. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a low-noise, long-life rubber tapping equipment and operating method. This reduces the mechanical vibration amplitude and noise level during equipment operation, alleviates local high-temperature accumulation, reduces thermal damage to rubber trees, and improves the durability and service life of the equipment.

[0005] The first objective of this invention is to provide a low-noise, long-life rubber tapping device, comprising a housing, a blade holder, a drive motor disposed within the housing, and a transmission mechanism, wherein the transmission mechanism connects the drive motor and the blade holder.

[0006] The transmission mechanism includes a reduction gear assembly and a reversing transmission assembly connected in series. The output end of the reversing transmission assembly is connected to an eccentric shaft, and the rotation axis of the eccentric shaft is set at an angle to the output axis of the drive motor. The drive end of the blade holder is equipped with a slider, and a guide groove is provided on the slider with an extension direction perpendicular to the movement direction of the blade holder. The eccentric part of the eccentric shaft slides in the guide groove to convert the rotational motion of the eccentric shaft into the reciprocating linear motion of the blade holder.

[0007] Furthermore, the reduction assembly is a planetary gear reducer, and the input end of the planetary gear reducer is connected to a drive motor; The reversing transmission assembly is a bevel gear reducer. The input end of the bevel gear reducer is connected to the output end of the planetary gear reducer. The output shaft of the bevel gear reducer serves as an eccentric shaft, and the output shaft of the bevel gear reducer is perpendicular to the output axis of the drive motor.

[0008] Furthermore, it also includes a control circuit, a speed control switch, and a trigger switch. The speed control switch is connected in series in the control circuit to control the connection and disconnection between the control circuit and the power supply. When the speed control switch is in the ON state and the trigger switch is closed, the control circuit outputs a drive signal to the drive motor.

[0009] Furthermore, the housing is provided with a gripping part, the speed control switch is located on the housing outside the gripping part area, and the trigger switch is located on the housing within the gripping part area.

[0010] Furthermore, the inner wall of the slider and / or guide groove is made of copper-based alloy material, and the eccentric part is fitted with a bushing that contacts the guide groove. The bushing and the mating surface of the copper-based alloy material are provided with spiral oil grooves to store lubricating grease, so as to provide continuous lubrication during the relative sliding process between the eccentric part and the guide groove.

[0011] Furthermore, one end of the blade holder is connected to the slider via a transmission rod and extends into the housing, passing through the guide sleeve installed inside the housing to form a linear sliding fit. A spiral oil groove is formed on the surface of the linear sliding fit, and a limiting rod with a preset limiting groove on the transmission rod is provided on the guide sleeve to maintain the circumferential position of the guide sleeve and the transmission rod.

[0012] Furthermore, it also includes a monitoring device and a display screen. The monitoring device is used to record the cumulative running time of the drive motor and compare the cumulative running time with a preset maintenance threshold. When the maintenance threshold is reached, the monitoring device controls the display screen to display a prompt message. The housing is equipped with a grease supply device, which has an oil injection channel extending into the transmission mechanism to deliver externally supplied lubricating grease to the eccentric part and the guide sleeve.

[0013] Furthermore, the monitoring device can detect the equipment circuit and drive motor. When a fault signal is detected, the monitoring device controls the display screen to show the corresponding fault code.

[0014] The second objective of this invention is to provide a method for operating a low-noise, long-life rubber tapping device, utilizing the low-noise, long-life rubber tapping device of the first objective, comprising: The drive motor starts and outputs rotational motion; The transmission mechanism receives high-speed rotational motion, reduces the speed through a series of reduction gears, and changes the direction of the rotation axis through a reversing transmission assembly, thereby driving the eccentric shaft to rotate. The eccentric part of the eccentric shaft rotates and slides within the guide groove of the slider. The guide groove restricts the displacement of the eccentric part in the vertical direction, driving the slider to reciprocate linearly along the vertical direction of the guide groove. The slider drives the blade holder and the cutting blade on it to reciprocate and extend to cut the bark of the rubber tree.

[0015] Furthermore, the start of the drive motor is controlled by detecting the status of the speed control switch and the trigger switch; The control circuit sends a drive signal to the drive motor to start the drive motor only when it detects that the speed control switch is in the power-on state and at the same time detects that the trigger switch is triggered and closed; otherwise, the drive motor remains stationary.

[0016] Compared with the prior art, the advantages and positive effects of this invention are: To address the problems of severe mechanical vibration, high noise, and damage to latex tubes on rubber tree cut surfaces caused by non-continuous pulse impact transmission in existing technologies, this invention combines a reduction gear assembly with a reversing transmission assembly. Utilizing the continuous rotation and sliding of an eccentric shaft within a guide groove perpendicular to the direction of extension and movement, the rotational power of the motor is smoothly converted into the reciprocating linear motion of the blade holder. This transmission method, based on continuous meshing and sliding cooperation, replaces the traditional intermittent impact drive mode, resulting in smoother and more rigid power transmission. This reduces the amplitude of mechanical vibration and noise levels during equipment operation. Simultaneously, it effectively alleviates the localized high-temperature accumulation caused by high-frequency impact friction, reducing the risk of thermal damage to the latex tubes of the rubber tree and ensuring sufficient latex discharge. Furthermore, it optimizes the stress environment of the transmission components, effectively improving the durability and service life of the equipment.

[0017] To address the issues of circumferential rotation caused by lateral cutting forces and overheating and jamming due to long-distance sliding friction during high-frequency reciprocating output of the transmission rod, a combination of a guide sleeve with a spiral oil groove and a limiting anti-rotation structure is adopted. The mechanical cooperation between the limiting rod and the limiting groove ensures that it can only move axially. At the same time, the spiral oil groove on the linear sliding mating surface creates a "micro-pump" effect during reciprocating motion, continuously and evenly distributing grease across the friction surface. This effectively eliminates the cutter head wobbling and torsion phenomena commonly found in reciprocating mechanisms, ensuring the straightness and stability of the cutting trajectory. This is beneficial for obtaining a smooth rubber tree cut surface and also improves the lubrication and heat dissipation conditions of long-axis moving parts, reducing the risk of mechanical jamming or excessive wear caused by local dry friction, thereby improving the reliability of the entire power output end.

[0018] Meanwhile, copper-based alloy materials are used to make the inner walls of the slider or groove, and combined with bearings and spiral oil grooves. The excellent self-lubricating properties and thermal conductivity of copper-based alloys serve as the base of the friction pair. In conjunction with the bearings, some sliding friction is converted into rolling friction. At the same time, the spiral oil grooves form an oil storage area at the moving interface, which not only reduces the friction coefficient of the eccentric mechanism at high speed and reduces heat generation, but also effectively improves the distribution of grease, thereby extending the service life of key transmission components and reducing the risk of latex tube damage due to high temperature.

[0019] To achieve high torque output and power reversal within a limited handheld space, a structure combining a planetary gear reducer and a bevel gear reducer is adopted. The planetary reducer is used for primary speed reduction and torque amplification, while the bevel gears are used to achieve vertical power reversal. This multi-stage transmission improves the weight distribution and size of the machine, enabling it to output sufficiently strong and stable cutting force while remaining compact and portable. This effectively solves the problems of tool jamming or excessive vibration caused by insufficient power or loose structure in traditional equipment.

[0020] To address the risks of accidental start-up and energy consumption during idling in existing power tools, a dual control logic system including a speed control switch and a trigger switch is implemented. The speed control switch is set as the main power supply and speed preset device, while the trigger switch acts as the execution switch. The circuit is only activated when both meet specific conditions simultaneously, effectively creating a safety barrier and preventing accidental injury caused by users accidentally pressing the trigger while the device is in motion or not in operation. It also eliminates the energy waste caused by the device starting as soon as it is powered on, which helps improve operational safety and battery life.

[0021] Considering the ergonomic needs of rubber farmers working long hours, the switch layout has been optimized. The speed control switch is located outside the grip, while the trigger switch is located within the grip. The switch positions are differentiated according to the operating frequency. The speed control switch, as a low-frequency adjustment component, prevents accidental changes in rotation speed, while the trigger switch, as a high-frequency actuator, allows for natural finger pressing, optimizing the grip feel, reducing hand fatigue during prolonged work, and improving ease of operation and comfort. The trigger switch is located on the handle, naturally starting or stopping when gripping, while ensuring grip stability without requiring deliberate avoidance of the trigger switch. The speed control switch is located at the end of the handle, outside the grip, enabling precise speed adjustment without speed fluctuations due to accidental activation during use.

[0022] To address the issues of premature equipment damage due to user neglect of maintenance and the difficulty of disassembling and maintaining the equipment, a monitoring device with a cumulative timing function, a display screen, and a grease replenishment device have been introduced. The electronic monitoring system quantifies the workload of the equipment and intuitively alerts the user when thresholds are reached. Combined with the oil injection channel extending into the interior, "grease injection without disassembling the machine" can be achieved, effectively solving the pain points of lagging maintenance and cumbersome maintenance in traditional equipment. By improving the convenience of lubrication management, it promotes the development of good maintenance habits among users, thereby helping to ensure that the transmission mechanism is always in the best lubrication condition. Attached Figure Description

[0023] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0024] Figure 1 This is a front view schematic diagram of a low-noise, long-life rubber tapping device in one or more embodiments of the present invention.

[0025] Figure 2 This is a top view schematic diagram of a low-noise, long-life rubber tapping device in one or more embodiments of the present invention.

[0026] Figure 3 This is a schematic diagram of the internal structure of a low-noise, long-life rubber tapping device in one or more embodiments of the present invention.

[0027] Figure 4 This is a schematic diagram showing the distribution of speed control switches in one or more embodiments of a low-noise, long-life rubber tapping device according to the present invention.

[0028] Figure 5 This is a schematic diagram of the overall structure of a low-noise, long-life rubber tapping device in one or more embodiments of the present invention.

[0029] The components include: 1. Housing; 2. Blade holder; 3. Drive motor; 4. Reduction assembly; 5. Reversing transmission assembly; 6. Eccentric shaft; 7. Transmission rod; 8. Guide sleeve; 9. Limiting rod; 10. Bushing; 11. Slider; 12. Display screen; 13. Trigger switch; 14. Speed ​​control switch; 15. Grip; and 16. Grease supply device. Detailed Implementation

[0030] Example 1 In a typical embodiment of the present invention, such as Figures 1-5 As shown, a low-noise, long-life rubber tapping device is presented.

[0031] Traditional electric rubber tapping equipment suffers from flawed transmission mechanism designs, often employing flexible shaft drives or impact principles. This results in severe mechanical vibration and high-decibel noise during operation, easily causing operator fatigue. Frequent hard impacts and high-frequency friction of transmission components cause rapid internal heating, potentially scalding the latex tubes of the rubber tree and affecting latex output, making it difficult to meet the demands of high-intensity, long-term continuous tapping operations. Therefore, this embodiment provides a low-noise, long-life rubber tapping device. By optimizing the transmission mechanism to achieve smooth reciprocating motion, noise and vibration are reduced. A lubrication structure improves friction conditions, further reducing operating noise and mechanical vibration, minimizing the risk of overheating and scalding the latex tubes of the rubber tree, ensuring the linearity and stability of the cutting trajectory, extending equipment lifespan, and improving overall reliability. like Figures 1-5 As shown, the low-noise, long-life rubber tapping equipment includes a housing 1, a blade holder 2, a drive motor 3 installed inside the housing 1, and a transmission mechanism. The transmission mechanism connects the drive motor 3 and the blade holder 2.

[0032] The transmission mechanism includes a reduction gear assembly 4 and a reversing transmission assembly 5 connected in series. The output end of the reversing transmission assembly 5 is connected to an eccentric shaft 6. The rotation axis of the eccentric shaft 6 is set at an angle to the output axis of the drive motor 3. The drive end of the blade holder 2 is provided with a slider 11. The slider 11 has a guide groove whose extension direction is perpendicular to the movement direction of the blade holder 2. The eccentric part of the eccentric shaft 6 is slidably fitted in the guide groove to convert the rotational motion of the eccentric shaft 6 into the reciprocating linear motion of the blade holder 2.

[0033] The housing 1 can be made of injection-molded plastic or die-cast metal to provide lightweight or high-strength protection. The blade holder 2 can be made of stamped or machined sheet metal and is used to mount and secure the cutting blade. The drive motor 3 can be a brushless DC motor, installed in a preset position inside the housing 1 and secured by screws or clips. The transmission mechanism is located between the drive motor 3 and the blade holder 2, responsible for transmitting power from the drive motor 3 to the blade holder 2.

[0034] The transmission mechanism connects the drive motor 3 and the blade holder 2 to achieve efficient power transmission from the drive motor 3 to the cutting blade. The corresponding reduction assembly 4 can be in the form of a multi-stage gear set, pulley reduction, or worm gear reduction, etc. Its input end is connected to the drive motor 3 to reduce the speed and increase the torque. The reversing transmission assembly 5 can be in the form of a straight bevel gear, helical bevel gear, or universal joint, etc. Its input end is connected to the output end of the reduction assembly 4 to change the axial direction of the power transmission.

[0035] An eccentric shaft 6 is connected to the output end of the reversing drive assembly 5. This eccentric shaft 6 can be used directly as the output shaft of the reversing drive assembly 5, or connected to the output shaft of the reversing drive assembly 5 via a coupling, key, or other means. The eccentric shaft 6 can be made of high-strength alloy steel to ensure its stability under high-speed rotation and load conditions.

[0036] The rotation axis of the eccentric shaft 6 is set at an angle to the output axis of the drive motor 3. For example, this angle can be designed to be 90 degrees, so that the rotation plane of the eccentric shaft 6 is perpendicular to the rotation plane of the drive motor 3, thereby achieving a compact structural layout within a limited equipment space. The drive end of the blade holder 2 is provided with a slider 11, and a guide groove extending perpendicular to the movement direction of the blade holder 2 is formed on the slider 11. The guide groove can be formed on the slider 11 by processes such as milling, wire cutting, or die forming, and its inner wall surface can be polished to reduce friction. The shape of the guide groove can be a rectangular groove or an oblong blind hole structure.

[0037] The eccentric portion can be a flat cylinder machined directly from the eccentric shaft 6, or it can be achieved by installing a bushing 10 on the eccentric shaft 6. The eccentric portion slides within the guide groove, converting the rotational motion of the eccentric shaft 6 into the linear motion of the slider 11. To reduce friction, grease can be filled between the eccentric portion and the guide groove, or a sliding bearing can be installed. Through the sliding engagement of the eccentric portion of the eccentric shaft 6 within the guide groove, the rotational motion of the eccentric shaft 6 is converted into the reciprocating linear motion of the blade holder 2. When the eccentric shaft 6 rotates, its eccentric portion slides within the guide groove along a path perpendicular to the direction of movement of the blade holder 2, simultaneously pushing the slider 11 to reciprocate along the direction of movement of the blade holder 2, thereby driving the blade holder 2 and the blades on it to perform cutting operations.

[0038] The low-noise, long-life rubber tapping equipment provided in this embodiment efficiently converts the rotational motion of the drive motor 3 into the rotation of the eccentric shaft 6 by employing a series-connected reduction gear assembly 4 and a reversing transmission assembly 5. The eccentric portion of the eccentric shaft 6 then slides in conjunction with the guide groove of the slider 11, achieving the reciprocating linear motion of the blade holder 2. This effectively avoids the severe vibrations and high-decibel noise caused by traditional convex point impacts or flexible shaft drives, reducing operator hand fatigue and auditory burden. Simultaneously, the smooth transmission method reduces hard impacts and high-frequency friction between components, which helps control the internal temperature rise of the equipment, preventing high-temperature burns to the latex tubes of the rubber tree and thus ensuring the latex output. This structure also improves the durability and reliability of the transmission system, enabling it to better adapt to the needs of high-intensity, long-cycle continuous rubber tapping operations.

[0039] like Figure 3As shown, the reduction assembly 4 in the transmission mechanism is specifically configured as a planetary gear reducer, the input end of which is connected to the drive motor 3. Meanwhile, the reversing transmission assembly 5 is specifically configured as a bevel gear reducer, the input end of which is connected to the output end of the planetary gear reducer, and the output shaft of the bevel gear reducer directly serves as an eccentric shaft 6, its rotation axis being perpendicular to the output axis of the drive motor 3.

[0040] Specifically, the planetary gear reducer utilizes the planetary gear transmission principle to achieve speed reduction and consists of a sun gear, planet gears, a planet carrier, and an internal gear ring. The drive motor 3 drives the sun gear to rotate via its output shaft. The sun gear, in turn, drives the planet gears to revolve and rotate within the internal gear ring, ultimately outputting the reduced power through the planet carrier. Due to its compact structure, wide transmission ratio range, high load capacity, high transmission efficiency, and low noise, the planetary gear reducer is particularly suitable for applications requiring high torque output and limited space, effectively converting the high speed of the drive motor 3 into high torque output.

[0041] Based on this, a bevel gear reducer serves as the reversing transmission component 5, utilizing bevel gear meshing to change the direction of power transmission. The reduction power output from the planetary gear reducer is input to the bevel gear reducer, driving one of the bevel gears to rotate. This bevel gear meshes with another bevel gear, thereby changing the direction of power transmission. The output shaft of the bevel gear reducer is directly used as the eccentric shaft 6, with its rotation axis perpendicular to the output axis of the drive motor 3. This simplifies the transmission chain, reduces intermediate links, and achieves a 90-degree reversal of the power transmission direction. The vertical layout optimizes the space of the handheld device, allowing the drive motor 3 to be positioned perpendicular to the blade's movement direction, thus optimizing the device's center of gravity distribution and grip comfort.

[0042] The multi-stage transmission combining planetary gear reducers and bevel gear reducers not only improves the weight distribution of the whole machine, making the center of gravity of the equipment more reasonable, but also effectively reduces the overall size of the equipment, making it compact and portable. This ensures that the equipment can output a sufficiently strong and stable cutting force, thereby effectively solving the problems of blade jamming or excessive vibration caused by insufficient power or loose structure of traditional equipment, and improving the efficiency and stability of rubber tapping operations.

[0043] In practical operation, existing power tools pose a risk of accidental start-up and energy consumption due to idling when powered on in non-operational states. This not only easily causes accidental injury to operators but also reduces the battery life of the equipment. To address this, this embodiment also includes a control circuit, a speed control switch 14, and a trigger switch 13. The speed control switch 14 is connected in series in the control circuit to control the connection and disconnection between the control circuit and the power supply. When the speed control switch 14 is on and the trigger switch 13 is closed, the control circuit outputs a drive signal to the drive motor 3.

[0044] The control circuit receives input signals from the speed control switch 14 and the trigger switch 13, and outputs corresponding drive signals to the drive motor 3 according to preset logic judgments. This control circuit can be implemented in various forms, such as a microcontroller (MCU), digital logic circuit, or analog circuit. For example, through microcontroller programming, the states of the speed control switch 14 and the trigger switch 13 can be accurately detected, and the drive motor 3 can be activated only when both meet specific conditions based on an AND logic relationship. Furthermore, the control circuit can also integrate overload protection, undervoltage protection, and other functions to ensure the safe and stable operation of the equipment.

[0045] The speed control switch 14 serves as the main power switch and / or speed adjustment interface for the equipment. It is connected in series between the control circuit and the power supply, responsible for controlling the power supply status of the entire control circuit. Only when the speed control switch 14 is in the ON state can the power supply provide power to the control circuit, putting the control circuit into standby or operational mode. This speed control switch 14 can be in the form of a toggle switch, rotary switch, or multi-position push-button switch, not only controlling the power supply but also providing multiple speed settings to adapt to different rubber cutting needs.

[0046] Specifically, the speed control switch 14 adopts a rotary speed control element with switching function, such as... Figure 3 , Figure 4 and Figure 5 As shown, after turning the speed control switch 14 to the left and hearing a "click" sound, the power is on. Turning the dial to the left again will adjust the speed of the motor. Turning it to the left will gradually increase the speed, and turning it to the right will gradually decrease it until you hear a "click" sound, which means the power is off.

[0047] Trigger switch 13 serves as the equipment's start switch and is typically designed as a self-resetting button or lever switch. Its function is to be manually triggered by the operator when the speed control switch 14 is powered on, sending a command to the control circuit to start the drive motor 3. When trigger switch 13 is closed, the control circuit receives this signal and, in conjunction with the state of the speed control switch 14, ultimately decides whether to output a drive signal to the drive motor 3.

[0048] Through the above technical solution, this embodiment constructs a dual control logic. The speed control switch 14, as the main power supply and speed preset device, is in a state where its connection is a prerequisite for equipment operation. The trigger switch 13, as the execution switch, only outputs a drive signal to the drive motor 3 when it is triggered and closed, effectively preventing accidental start-up caused by accidental trigger activation during movement or non-operational states, thereby improving operational safety. Simultaneously, the equipment will not run idle when the speed control switch 14 is not connected or the trigger switch 13 is not closed, effectively eliminating unnecessary power waste and extending battery life. The hierarchical control mechanism ensures that the equipment maintains convenient operation while also considering safety and energy efficiency.

[0049] In actual operation, especially during long-term work, an unreasonable layout of the switches may cause inconvenience to the user, hand fatigue, or even accidental activation of the speed control switch 14, leading to speed fluctuations and affecting cutting accuracy and work efficiency. To address this, this embodiment provides a gripping part 15 on the housing 1, with the speed control switch 14 located on the housing 1 outside the gripping part 15 area, and the trigger switch 13 located on the housing 1 within the gripping part 15 area.

[0050] Specifically, the grip 15 is a part of the housing 1 specifically designed for the user's hand, with an ergonomic shape and size so that the user can hold it comfortably and stably when operating the device. The grip 15 can be a structure integrally molded onto the housing 1, or it can be a separate component attached to the outside of the housing 1, for example, by bolts or clips. Its surface can be made of non-slip materials, such as rubber or soft plastic, or it can be textured or grooved to increase friction and improve grip stability and comfort.

[0051] The speed control switch 14 is a control element used to adjust the speed of the drive motor 3. It is located in an area of ​​the housing 1 that is not easily accessible to the user's palm or fingers when holding the grip part 15. The speed control switch 14 can take various forms, such as a knob, toggle, or button. By placing it outside the grip part 15 area, such as on the top, side, or rear of the housing 1, away from the user's main operating finger range of motion, the possibility of the user accidentally activating the speed control switch 14 when normally holding and operating the trigger switch 13 is reduced.

[0052] Trigger switch 13 is an actuator switch used to control the start and stop of drive motor 3. It is located in an area of ​​the housing 1 where the user's fingers (such as index or middle fingers) can naturally and conveniently reach and operate it when holding the grip part 15. This trigger switch 13 typically employs a push-button or lever-type structure, and its position and shape are optimized according to ergonomics to match the natural bending and pressing motion of the user's fingers. Positioning it within the grip part 15 area, such as at the front or bottom of the grip part 15, allows the user's fingers to naturally rest on the trigger switch 13 when gripping the device, enabling quick and intuitive start and stop operations.

[0053] By employing the aforementioned technical solution, the speed control switch 14 is positioned on the housing 1 outside the grip area 15, while the trigger switch 13 is positioned on the housing 1 within the grip area 15. This optimizes the switch layout, allowing users to grip the equipment in a more natural and comfortable posture during extended operation, effectively reducing hand fatigue. The trigger switch 13, located within the grip area 15, facilitates natural activation or deactivation by the user during gripping, ensuring grip stability without requiring deliberate avoidance of the trigger switch. The speed control switch 14, positioned at the end of the machine (outside the gripping area), effectively prevents accidental changes to the preset speed during operation, thus ensuring the straightness and stability of the cutting trajectory and facilitating the production of a smooth rubber tree cut surface. Furthermore, this ergonomic optimization enhances operational convenience and comfort, further improving equipment safety and operational efficiency.

[0054] The high-speed reciprocating sliding of the blade holder 2, under prolonged operation, is prone to generating a large amount of heat and wear due to friction, leading to a shortened component life, reduced transmission efficiency, and even potentially affecting the quality of the rubber tree tapping surface or damaging the equipment due to localized overheating. To address this, in this embodiment, the inner wall of the slider 11 and / or the guide groove is made of a copper-based alloy material.

[0055] Copper-based alloys are alloys with copper as the main component and other metallic elements (such as tin, zinc, aluminum, lead, etc.) added. They possess excellent wear resistance, good self-lubricating properties, high thermal conductivity, and a certain degree of corrosion resistance. Making the inner wall of the slider 11 and / or the guide groove a copper-based alloy can effectively reduce the coefficient of friction of the sliding friction pair, reduce wear, and quickly conduct away the heat generated by friction, preventing localized overheating. For example, tin bronze or lead bronze can be selected, which can provide a certain degree of lubrication even under oil-free or low-oil conditions.

[0056] The eccentric portion is fitted with a bushing 10 that contacts the guide groove. The bushing 10 is an annular bushing fitted outside the eccentric portion, serving as the direct contact component between the eccentric portion and the guide groove, and bearing the sliding friction. By using the bushing 10, friction and wear are concentrated on the bushing 10, facilitating subsequent maintenance and replacement, thereby extending the service life of the eccentric portion and the guide groove body. The bushing 10 can also be designed to have bearing functions, for example, by using self-lubricating materials or optimizing the internal structure, to effectively reduce the coefficient of friction in sliding fits, and even to a certain extent convert some sliding friction into a rolling friction-like effect, thereby further reducing energy loss and heat generation. The material of the bushing 10 can be engineering plastics, sintered metals, or copper-based alloys that match the inner wall material of the guide groove, all with good wear resistance and self-lubricating properties.

[0057] Spiral oil grooves are formed on the mating surfaces of the bushing 10 and the copper-based alloy material. These spiral oil grooves are helical grooves machined on the outer surface of the bushing 10 and / or the inner wall of the guide groove. The main function of the spiral oil grooves is to serve as a storage space and delivery channel for lubricating grease. When the eccentric part slides relative to the guide groove, the spiral oil grooves utilize the reciprocating or rotational motion of the components to generate a "micro-pump" effect, continuously and evenly pumping the stored lubricating grease to the entire friction contact surface, ensuring that the friction pair is always in a good lubrication state. The geometric parameters of the oil grooves, such as depth, width, and pitch, can be optimized based on factors such as lubricant viscosity, movement speed, and load to achieve the best lubrication effect.

[0058] One end of the blade holder 2 is connected to the slider 11 via a transmission rod 7, which extends into the housing 1. The transmission rod 7 passes through a guide sleeve installed inside the housing 1, forming a linear sliding fit with the guide sleeve. The function of the guide sleeve is to provide precise axial guidance for the transmission rod 7, ensuring that it maintains a linear trajectory during reciprocating motion.

[0059] When the transmission rod 7 performs high-frequency reciprocating output, it is prone to circumferential rotation due to lateral cutting forces. Furthermore, long-distance sliding friction can lead to overheating and jamming, affecting the straightness and stability of the cutting trajectory, and potentially causing mechanical jamming or excessive wear. A spiral oil groove is formed on the linear sliding contact surface between the transmission rod 7 and the guide sleeve. This spiral groove stores lubricating grease, and during the reciprocating motion of the transmission rod 7, its unique structure and the pressure difference generated by the motion distribute the grease evenly across the entire friction surface, creating a "micro-pump" effect for continuous and efficient lubrication. In addition, to prevent circumferential rotation of the transmission rod 7 during reciprocating motion, the guide sleeve is equipped with a limiting rod 9 that engages with a pre-set limiting groove on the transmission rod 7. The mechanical engagement of the limiting rod 9 and the limiting groove effectively restricts the circumferential position of the transmission rod 7, allowing it to move only axially, thus ensuring that the movement trajectory of the blade holder 2 remains stable and precise.

[0060] In actual use, even if the internal lubrication mechanism is optimized, users may still fail to perform regular maintenance on the equipment in a timely manner due to negligence or forgetfulness, or the maintenance operation may be inconvenient due to the complex internal structure of the equipment. As a result, the key transmission components of the equipment, especially the eccentric part and the guide sleeve, will still face the risk of insufficient lubrication and accelerated wear after long-term operation, which will affect the overall service life and reliability of the equipment.

[0061] In this embodiment, as follows: Figure 1 , Figure 2 and Figure 3As shown, a monitoring device and a display screen 12 are also installed on the housing 1. The monitoring device is configured to record the cumulative operating time of the drive motor 3. This monitoring device can be a microcontroller integrated into the control circuit, which determines the operating status of the drive motor 3 by detecting its current or voltage signals and accurately accumulates the motor's operating time using an internal timer. The accumulated time data is typically stored in non-volatile memory to ensure that the data is not lost after power failure. Furthermore, the monitoring device can also be used to compare the recorded cumulative operating time with a preset maintenance threshold. This maintenance threshold is a time value determined during the equipment design phase based on factors such as the wear characteristics of key components and the effective life of the lubricating grease; for example, it can be set to a cumulative operating time of 100 hours or 200 hours. When the monitoring device detects that the cumulative operating time has reached or exceeded the preset threshold, it immediately triggers a control signal to control the display screen 12 to display a prompt message. The display screen 12 can be an LCD screen or an LED indicator, used to intuitively show users that the equipment needs maintenance, such as displaying or flashing text or icons such as "Add Grease", "Please Add Lubricating Grease" or "Please Perform Maintenance", thereby proactively reminding users to perform necessary maintenance operations.

[0062] Meanwhile, to address the difficulty of disassembly and maintenance, a grease supply device 16 is also provided on the housing 1. The grease supply device 16 can be an externally operable grease inlet, such as a grease inlet with a threaded cap or a quick connector, which allows users to easily replenish grease using standard lubrication tools, while effectively preventing external dust and impurities from entering the equipment.

[0063] The grease replenishment device 16 has an oil injection channel extending into the transmission mechanism. This oil injection channel can be made of oil-resistant and pressure-resistant conduit, or it can be formed by removing material from the housing 1 and corresponding components. It can directly and efficiently deliver externally supplied lubricating grease to the key friction points inside the transmission mechanism, especially the mating surfaces of the eccentric part and the guide sleeve. Users can replenish the grease of the key friction pairs inside the equipment without disassembling the housing 1 or performing complex disassembly operations, simplifying the daily maintenance process of the equipment.

[0064] By introducing a monitoring device and display screen 12, an intelligent reminder and convenient lubrication maintenance mechanism is implemented. This, along with the aforementioned internal lubrication optimization measures such as the guide sleeve with spiral oil grooves, the limiting anti-rotation structure, and copper-based alloy materials, together constructs a comprehensive and efficient lubrication management system. This not only ensures that the transmission mechanism is always in good lubrication condition, significantly extending the equipment's service life and reducing mechanical failures and wear caused by insufficient lubrication, but also enhances the user's enthusiasm and convenience for maintenance, thereby improving the reliability and durability of the low-noise, long-life rubber tapping equipment.

[0065] Furthermore, in this embodiment, the monitoring device can detect the equipment circuitry and the drive motor 3. Specifically, the monitoring device can employ an integrated electronic module, internally equipped with hardware such as sensors, current / voltage detection modules, and temperature sensors, and running embedded software algorithms. The monitoring device can collect operating parameters of the drive motor 3, such as current, voltage, speed, and temperature, in real time or periodically, and detect the power supply voltage, signal integrity, and operating status of key components in the control circuit. Through these detections, the monitoring device can determine whether the drive motor 3 and the control circuit are within their normal operating range, such as whether there are abnormal conditions such as overload, short circuit, open circuit, overheating, or component failure.

[0066] When the monitoring device detects a fault signal based on preset fault judgment logic and parameter thresholds, such as the current of drive motor 3 exceeding the safety limit for an extended period, the motor temperature being too high, or a critical voltage value in the control circuit deviating from the normal range, the monitoring device will immediately control the display screen 12 to display the corresponding fault code. The fault code is a predefined, simplified combination of characters or numbers used to indicate a specific type of equipment fault. The monitoring device internally stores a fault code table. When a fault signal is detected, it queries this table and sends the corresponding code information to the display screen 12 via the communication interface. The display screen 12 receives the information and presents it intuitively on the user interface so that the user can quickly identify the problem.

[0067] Through the above technical solution, the monitoring device can not only record the cumulative operating time of the equipment to remind users to perform preventive maintenance, but also further, it can perform real-time or periodic detection on the equipment circuit and drive motor 3. When an abnormal fault signal is detected, the monitoring device can immediately control the display screen 12 to display the corresponding fault code, allowing users to quickly understand what specific fault has occurred, such as motor overload, circuit short circuit, or other abnormalities. This avoids situations where users cannot determine the problem when the equipment experiences a sudden fault, leading to blind operation or delayed maintenance. This real-time and accurate fault diagnosis function significantly improves the safety and reliability of equipment operation, reduces downtime caused by faults, and provides clear guidance for subsequent troubleshooting and maintenance, effectively ensuring the continuity and efficiency of operations. Combined with the original maintenance reminder function, a comprehensive and intelligent equipment health management system is constructed, improving the overall service life of the equipment and the user experience from both preventive maintenance and fault diagnosis dimensions.

[0068] Example 2 In another typical embodiment of the present invention, such as Figures 1-5 As shown, a method for operating a low-noise, long-life rubber tapping device is provided. Utilizing the low-noise, long-life rubber tapping device as described in Example 1, the method includes the following steps: Drive motor 3 starts and outputs rotational motion; The transmission mechanism receives high-speed rotational motion, reduces the speed through the series reduction assembly 4, and changes the direction of the rotation axis through the reversing transmission assembly 5, thereby driving the eccentric shaft 6 to rotate. The eccentric part of the eccentric shaft 6 rotates and slides within the guide groove of the slider 11. The guide groove restricts the displacement of the eccentric part in the vertical direction, driving the slider 11 to reciprocate linearly along the vertical direction of the guide groove. The slider 11 drives the blade holder 2 and the cutting blade on it to reciprocate and extend to cut the bark of the rubber tree.

[0069] Additionally, the start-up of the drive motor 3 can be controlled by detecting the states of the speed control switch 14 and the trigger switch 13. Specifically, the control circuit sends a drive signal to the drive motor 3 to start it only when it detects that the speed control switch 14 is in the power-on state and simultaneously detects that the trigger switch 13 is triggered and closed; otherwise, the drive motor 3 remains stationary. This effectively avoids accidental start-up caused by the user accidentally touching the trigger while the device is moving, placed, or not in operation, significantly improving the operational safety of the equipment.

[0070] Meanwhile, controlling the start of the drive motor 3 by detecting the status of the speed control switch 14 and the trigger switch 13 also eliminates the energy consumption of the drive motor 3 idling when the equipment is powered on but not in operation. This helps to extend the battery life and reduce unnecessary mechanical wear, ensuring that the power output end is activated only when the user clearly intends to operate and the equipment is in a ready state, thereby ensuring the safety of rubber tapping operations.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A low-noise, long-life rubber tapping device, characterized in that, It includes a housing, a blade holder, a drive motor installed inside the housing, and a transmission mechanism, with the transmission mechanism connecting the drive motor and the blade holder; The transmission mechanism includes a reduction gear assembly and a reversing transmission assembly connected in series. The output end of the reversing transmission assembly is connected to an eccentric shaft, and the rotation axis of the eccentric shaft is set at an angle to the output axis of the drive motor. The drive end of the blade holder is equipped with a slider, and a guide groove is provided on the slider with an extension direction perpendicular to the movement direction of the blade holder. The eccentric part of the eccentric shaft slides in the guide groove to convert the rotational motion of the eccentric shaft into the reciprocating linear motion of the blade holder.

2. The low-noise, long-life rubber tapping equipment as described in claim 1, characterized in that, The reduction assembly is a planetary gear reducer, and the input end of the planetary gear reducer is connected to the drive motor; The reversing transmission assembly is a bevel gear reducer. The input end of the bevel gear reducer is connected to the output end of the planetary gear reducer. The output shaft of the bevel gear reducer serves as an eccentric shaft, and the output shaft of the bevel gear reducer is perpendicular to the output axis of the drive motor.

3. The low-noise, long-life rubber tapping equipment as described in claim 1, characterized in that, It also includes a control circuit, a speed control switch, and a trigger switch. The speed control switch is connected in series in the control circuit to control the connection and disconnection between the control circuit and the power supply. When the speed control switch is on and the trigger switch is closed, the control circuit outputs a drive signal to the drive motor.

4. The low-noise, long-life rubber tapping equipment as described in claim 3, characterized in that, The housing is provided with a gripping part, the speed control switch is located on the housing outside the gripping part area, and the trigger switch is located on the housing within the gripping part area.

5. The low-noise, long-life rubber tapping equipment as described in claim 1, characterized in that, The inner wall of the slider and / or guide groove is made of copper-based alloy material. The eccentric part is fitted with a bushing that contacts the guide groove. The bushing and the mating surface of the copper-based alloy material are provided with spiral oil grooves to store lubricating grease, so as to provide continuous lubrication during the relative sliding process between the eccentric part and the guide groove.

6. The low-noise, long-life rubber tapping equipment as described in claim 1 or 5, characterized in that, One end of the blade holder is connected to the slider via a transmission rod and extends into the housing. It passes through the guide sleeve installed inside the housing to form a linear sliding fit. A spiral oil groove is opened on the surface of the linear sliding fit. The guide sleeve is provided with a limiting rod that matches the preset limiting groove on the transmission rod to maintain the circumferential position of the guide sleeve and the transmission rod.

7. The low-noise, long-life rubber tapping equipment as described in claim 6, characterized in that, It also includes a monitoring device and a display screen. The monitoring device is used to record the cumulative running time of the drive motor and compare the cumulative running time with a preset maintenance threshold. When the maintenance threshold is reached, the monitoring device controls the display screen to display a prompt message. The housing is equipped with a grease supply device, which has an oil injection channel extending into the transmission mechanism to deliver externally supplied lubricating grease to the eccentric part and the guide sleeve.

8. The low-noise, long-life rubber tapping equipment as described in claim 7, characterized in that, The monitoring device can detect the equipment circuit and drive motor. When a fault signal is detected, the monitoring device controls the display screen to display the corresponding fault code.

9. A method for operating a low-noise, long-life rubber tapping device, utilizing the low-noise, long-life rubber tapping device as described in any one of claims 1-8, characterized in that, include: The drive motor starts and outputs rotational motion; The transmission mechanism receives high-speed rotational motion, reduces the speed through a series of reduction gears, and changes the direction of the rotation axis through a reversing transmission assembly, thereby driving the eccentric shaft to rotate. The eccentric part of the eccentric shaft rotates and slides within the guide groove of the slider. The guide groove restricts the displacement of the eccentric part in the vertical direction, driving the slider to reciprocate linearly along the vertical direction of the guide groove. The slider drives the blade holder and the cutting blade on it to reciprocate and extend to cut the bark of the rubber tree.

10. The operating method of the low-noise, long-life rubber tapping equipment as described in claim 9, characterized in that, The start-up of the drive motor is controlled by detecting the status of the speed control switch and the trigger switch; The control circuit sends a drive signal to the drive motor to start the drive motor only when it detects that the speed control switch is in the power-on state and at the same time detects that the trigger switch is triggered and closed; otherwise, the drive motor remains stationary.

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