High-speed lithium electric saw convenient to assemble

Abstract

The utility model relates to the technical field of high-speed lithium electric saws, in particular to a high-speed lithium electric saw convenient to assemble. The device comprises a shell formed by combining a first outer shell and a second outer shell, a motor is arranged in the first outer shell, a rotating shaft of the motor is connected with a driving gear and is in transmission connection to a driving wheel of a chain through the driving gear and a speed reducer, a guide plate is arranged on the side edge of the second outer shell, an adjusting assembly is installed on the portion, located on the inner side of the guide plate, of the second outer shell, and a cover plate is arranged on the outer side of the guide plate; during production, upstream manufacturers can directly connect the controller with the motor stator, when a high-speed lithium electric saw is assembled, the stator is directly installed in a motor slot position, a rotor, a cover plate and other parts are installed, a motor shell in the existing design is not adopted any more, a wire can directly penetrate into the electric saw, and soldering tin wiring is not needed; according to the adjusting assembly installed on the second outer shell, when the guide plate is installed, the positioning plug pin can be directly seen, and therefore the guide plate can be rapidly aligned to be installed, and is simple, convenient and high in installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of high-speed lithium electric saw technology, specifically to a high-speed lithium electric saw that is easy to assemble. Background Technology

[0002] High-speed lithium-ion chainsaws are cutting tools that have become increasingly popular in recent years. They can be used in various applications, such as garden trimming, woodworking, and home DIY projects. Compared to traditional AC chainsaws or fuel saws, high-speed lithium-ion chainsaws have advantages such as light weight, no cable constraints, low noise, and quick start-up.

[0003] However, existing high-speed lithium-ion chainsaw designs have certain flaws, such as... Figure 1 As shown, the motor design of the lithium-ion drill is externally mounted, with pre-drilled mounting holes on the outer casing. The motor housing I is mounted on the outside of the motor, and the front cover III is mounted on the front. The motor housing I has a hole on the side through which the motor wire IV is led out. The rear of the motor housing I has a heat dissipation hole II. The fan blades connected to the motor dissipate heat outward from the heat dissipation hole II. The motor housing I and the internal motor are manufactured as unit components by the manufacturer. The assembly plant bolts this component onto the outer casing of the high-speed lithium-ion saw, and then solders the motor wire IV and the controller wire to form a connector V. Therefore, the assembly process requires independent soldering operations, which have high operational requirements, high labor costs, and low production efficiency.

[0004] Other examples Figure 2 As shown, the existing high-speed lithium-ion electric saw design involves setting an adjusting screw VII inside the adjusting cover VI on the outside of the guide plate. A locating pin VIII is installed on the adjusting screw VII. The screw thread drives the locating pin VIII to move, thereby causing the guide plate to slide and adjusting the chain tension. However, during installation, because the locating pin VIII is inside the cover plate, it cannot be directly observed. Installers can only rely on experience and feel to insert the locating pin VIII into the hole in the guide plate, which is very inconvenient. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a reasonably designed and easy-to-assemble high-speed lithium electric saw that can solve the aforementioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: it comprises a housing composed of a first outer shell and a second outer shell. A motor is installed in the first outer shell, and a drive gear is connected to the motor shaft. The drive gear and the reducer are connected to the drive wheel of the chain. A guide plate is provided on the side of the second outer shell, and an adjustment component is installed on the second outer shell inside the guide plate. A cover plate is provided on the outside of the guide plate.

[0007] Preferably, the outer casing has a motor slot for mounting a motor, the motor includes a stator mounted in the motor slot, a rotor is provided inside the stator, and the rotor is connected to a rotating shaft.

[0008] Preferably, a cover plate is provided at the opening of the motor slot, the rotor shaft is rotatably disposed in the cover plate, the fan blade is provided on the shaft and the fan blade is located outside the cover plate, and the drive gear is installed at the outer end of the shaft.

[0009] Preferably, the adjustment assembly includes an adjustment rod rotatably mounted on both sides of the outer casing. The adjustment rod is a threaded rod. An adjustment knob is rotatably provided on the outer casing. The adjustment knob is driven to the adjustment rod. A positioning pin is threadedly installed on the adjustment rod. A positioning hole is opened in the guide plate, and the positioning pin is located in the positioning hole.

[0010] Preferably, the rear end of the housing is provided with a battery slot, in which a battery is installed.

[0011] The beneficial effects of this utility model after adopting the above structure are:

[0012] 1. In the production of this utility model, upstream manufacturers can directly connect the controller to the motor stator. When assembling the high-speed lithium electric saw, the stator is directly installed into the motor slot, and the rotor, cover plate, and other components are installed. The motor housing in the existing design is no longer used. The wires can be directly passed through the inside of the electric saw, so there is no need for soldering. Moreover, the rotor, stator, and motor slot form a motor that is integrated with the outer casing, which has high stability. The fan blades are located inside the motor, which can dissipate heat during use and does not affect the installation.

[0013] 2. The adjustment component designed and installed on the outer shell of this utility model allows the positioning pin to be directly seen when installing the guide plate, thus enabling quick alignment and installation. It is simple, convenient, and efficient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the existing motor mounting method;

[0015] Figure 2 This is a schematic diagram of the internal structure of the adjustment cover plate outside the guide plate in the existing design;

[0016] Figure 3 This is a schematic diagram of the left side structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0018] Figure 5 This is a schematic diagram of the assembly of the motor in this utility model;

[0019] Figure 6This is a schematic diagram of the structure of the adjustment component in this utility model;

[0020] Figure 7 This is a schematic diagram showing the connection relationship between the adjustment component and the guide plate after the cover plate is removed in this utility model.

[0021] Figure 8 This is a schematic diagram of the right side of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] Ⅰ. Motor housing; Ⅱ. Heat dissipation holes; Ⅲ. Front cover; Ⅳ. Motor wires; Ⅴ. Connector; Ⅵ. Adjusting cover plate; Ⅶ. Adjusting screw; Ⅷ. Positioning pin;

[0024] 1. Outer shell one; 2. Outer shell two; 3. Motor slot; 4. Stator; 5. Rotor; 6. Cover plate; 7. Shaft; 8. Drive gear; 9. Fan blade; 10. Adjustment knob; 11. Adjustment rod; 12. Positioning pin; 13. Guide plate; 14. Cover plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] See Figures 3-8 As shown, it includes a housing composed of a first outer shell 1 and a second outer shell 2. A battery slot for installing a removable battery is located at the rear end of the housing. Inside the housing is an electrical control structure for controlling the operation of the chainsaw. A motor is installed inside the first outer shell 1, and a drive gear 8 is connected to the motor's shaft 7. The drive gear 8, through a transmission engagement with a reducer, is connected to a drive wheel for driving the chain, thus driving the chain. A guide plate 13 is located on the side of the second outer shell 2 to support the chain's trajectory. An adjustment component is installed on the second outer shell 2, located inside the guide plate 13, to adjust the position of the guide plate 13. A cover plate 14 is provided on the outer area of ​​the guide plate 13 to protect the chain and the guide plate 13, improving operational safety.

[0027] The outer casing 1 has a motor slot 3 for fixing and installing a motor. The motor includes a stator 4 installed in the motor slot 3. The stator 4 has a rotatable rotor 5 inside. The rotor 5 is connected to a rotating shaft 7 to realize the rotation drive function. The opening of the motor slot 3 is provided with a cover plate 6. The rotating shaft 7 connected to the rotor 5 is rotatably installed in the cover plate 6. The rotating shaft 7 is equipped with a fan blade 9 on the outside of the cover plate 6 for auxiliary heat dissipation. The drive gear 8 is installed on the outer end of the rotating shaft 7 and the power is transmitted through the rotation of the rotating shaft 7.

[0028] The adjustment assembly includes an adjustment rod 11 rotatably mounted on the side of the outer casing 2. The adjustment rod 11 is a threaded rod with a threaded structure. A rotatable adjustment knob 10 is provided on the outer casing 2. The adjustment knob 10 is connected to the adjustment rod 11 through a transmission mechanism, so that it can drive the adjustment rod 11 to rotate. A positioning pin 12 is installed on the adjustment rod 11 by a threaded connection. A positioning hole for the pin to be inserted is opened in the guide plate 13. The positioning pin 12 is located in the positioning hole, thereby achieving precise positioning of the guide plate 13 and adjusting the tension of the chain on the guide plate 13.

[0029] During production, upstream manufacturers can directly connect the controller and the motor stator 4 to form a component. When assembling the high-speed lithium electric saw, the stator 4 is directly installed into the motor slot 3, and the rotor 5, cover plate 6 and other components are installed without the need for soldering. The rotor 5, stator 4 and motor slot 3 form a motor integrated with the outer casing 1. The fan blade 9 can dissipate heat during use without affecting the installation of the rotor 5.

[0030] When installing the guide plate 13, the positioning pin 12 can be seen directly, so it can be installed quickly. Then, the cover plate 14 is installed and the bolts are tightened to complete the assembly.

[0031] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A high speed lithium battery saw which is easy to assemble, comprising a housing which is composed of a first housing (1) and a second housing (2), characterized in that: The motor is arranged in the outer shell one (1), the rotating shaft (7) of the motor is connected with the driving gear (8), and the driving gear (8) is connected to the driving wheel of the chain through a speed reducer, the outer shell two (2) is provided with a guide plate (13) on the side, the adjusting assembly is arranged on the outer shell two (2) inside the guide plate (13), and the cover plate (14) is arranged outside the guide plate (13).

2. A high speed lithium powered saw that is easy to assemble as claimed in claim 1, wherein: The outer shell one (1) is provided with a motor slot (3) for mounting the motor, the motor comprises a stator (4) mounted in the motor slot (3), the inside of the stator (4) is provided with a rotor (5), and the rotor (5) is connected with a rotating shaft (7).

3. A high speed lithium powered saw that is easy to assemble as claimed in claim 2, wherein: The motor slot (3) is provided with a cover plate (6) at the mouth, the rotating shaft (7) connected with the rotor (5) is rotatably arranged in the cover plate (6), the rotating shaft (7) is provided with a fan blade (9), the fan blade (9) is located outside the cover plate (6), and the driving gear (8) is mounted on the outer side end of the rotating shaft (7).

4. The high-speed lithium electric saw for easy assembly according to claim 1, characterized in that: The adjusting assembly comprises an adjusting rod (11) rotatably arranged on the side of the outer shell two (2), the adjusting rod (11) is a threaded rod, the outer shell two (2) is rotatably provided with an adjusting knob (10), the adjusting knob (10) is drivingly connected to the adjusting rod (11), the adjusting rod (11) is provided with a positioning pin (12) through a threaded connection, the positioning hole is formed in the guide plate (13), and the positioning pin (12) is arranged in the positioning hole.

5. The high-speed lithium electric saw for easy assembly according to claim 1, characterized in that: The rear end of the shell is provided with a battery clamping groove, and the battery is mounted in the battery clamping groove.

Images