Lithium electric nail gun motor gear box assembling structure

Abstract

The utility model discloses a lithium electric nail gun motor gearbox assembling structure which comprises a lithium electric nail gun body, a gearbox is installed in the lithium electric nail gun body, a bearing hole is formed in the gearbox, a square groove is formed in the inner side wall of the gearbox, the lower end of the gearbox is fixedly connected with a motor upper support, and the lower end of the gearbox is fixedly connected with a motor lower support. The lower end of the motor upper support is fixedly connected with a motor body, and a motor center shaft is installed in the motor body. According to the lithium electric nail gun motor gear box assembling structure, the square boss of the motor upper support is clamped in the square groove in the gear box, and then the part, provided with the bearing body, of the motor center shaft is matched with the bearing hole in the bottom of the gear box; therefore, the purpose that the gearbox and the motor center shaft are located on the same center line is achieved, the gearbox and the motor body can be accurately positioned and installed conveniently, finally, a bolt penetrates through the motor upper support to be locked with the gearbox, and assembly capable of reducing kinetic energy loss is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium-electric nail guns, in particular to an assembly structure of a motor gear box of a lithium-electric nail gun. Background Art

[0002] A nail gun is a product composed of multiple parts such as a tool shell and a magazine. It is divided into electric nail guns, pneumatic nail guns, gas nail guns, manual nail guns, etc. A lithium battery nail gun is a handheld lithium battery nailing tool, which is mostly used in the construction, decoration, and furniture industries;

[0003] The traditional lithium-ion nail gun motor body gearbox assembly structure has some shortcomings. The mechanism of the lithium-ion nail gun mainly includes the motor body, reduction box and other components. When the motor body and the gearbox of the traditional lithium-ion nail gun are connected, a shell that contains the motor body and the gearbox is required, and then fastened with bolts and other fasteners. Due to the lack of precise positioning of the structural design, the center of the gearbox and the motor body are not on the same center line. Because the motor body and the gearbox are not concentric, the motor body will lose some kinetic energy during transmission, and the position of the motor body and the gearbox will become coarser, thus affecting the appearance. Utility Model Content

[0004] The main purpose of the utility model is to provide a lithium-electric nail gun motor gear box assembly structure, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A lithium-ion nail gun motor gearbox assembly structure comprises a lithium-ion nail gun body, a gearbox is installed inside the lithium-ion nail gun body, a bearing hole is opened inside the gearbox, a square groove is provided on the inner side wall of the gearbox, the lower end of the gearbox is fixedly connected to the motor upper bracket, the lower end of the motor upper bracket is fixedly connected to the motor body, a motor center shaft is installed inside the motor body, the motor center shaft passes through the interior of the motor upper bracket, the motor center shaft and the motor upper bracket are movably connected, a bearing body is installed outside the motor center shaft, a transmission tooth is fixedly sleeved on the upper end of the motor center shaft, the motor upper bracket is provided with a square boss, and bolts are provided at some positions of the motor upper bracket.

[0007] Preferably, the square boss is clamped in the square groove inside the gearbox, and the bearing body is installed in the bearing hole in the gearbox.

[0008] Preferably, the bolt passes through the upper bracket of the motor and extends to the screw hole of the gearbox, and the connection between the gearbox and the motor body is fixed and locked by the bolt.

[0009] Preferably, the transmission tooth is mounted on the central axis of the motor body, and the center lines of the motor body, the motor central axis, the bearing body, the transmission tooth, the bearing hole, and the gearbox are located on the same straight line.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] By clamping the square boss of the upper bracket of the motor into the square groove inside the gearbox, the part of the motor center shaft where the bearing body is installed is matched with the bearing hole at the bottom of the gearbox, so as to achieve the purpose of the gearbox and the motor center shaft being on the same center line. This facilitates the precise positioning and installation of the gearbox and the motor body. Finally, the bolts pass through the upper bracket of the motor and lock it with the gearbox, thereby achieving an assembly that reduces kinetic energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a lithium battery nail gun motor gearbox assembly structure of the utility model;

[0013] Figure 2 It is a partial structural schematic diagram of a lithium battery nail gun motor gearbox assembly structure of the utility model;

[0014] Figure 3 The utility model is a schematic diagram of the partial explosion structure of the gear box assembly structure of a lithium battery nail gun motor.

[0015] In the figure: 1. gearbox; 2. motor body; 3. bolt; 4. bearing hole; 5. bearing body; 6. transmission gear; 7. square groove; 8. square boss; 9. motor upper bracket; 10. motor center axis; 11. lithium battery nail gun body DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] like Figure 1-3 As shown, a lithium-ion nail gun motor gearbox assembly structure includes a lithium-ion nail gun body 11, a gearbox 1 is installed inside the lithium-ion nail gun body 11, a bearing hole 4 is opened inside the gearbox 1, a square groove 7 is provided on the inner side wall of the gearbox 1, the lower end of the gearbox 1 is fixedly connected to the motor upper bracket 9, the lower end of the motor upper bracket 9 is fixedly connected to the motor body 2, a motor center shaft 10 is installed inside the motor body 2, the motor center shaft 10 passes through the interior of the motor upper bracket 9, the motor center shaft 10 and the motor upper bracket 9 are movably connected, a bearing body 5 is installed on the outer side of the motor center shaft 10, a transmission tooth 6 is fixedly sleeved on the upper end of the motor center shaft 10, the motor upper bracket 9 is provided with a square boss 8, and bolts 3 are provided at some positions of the motor upper bracket 9.

[0018] In this embodiment, the square boss 8 is stuck in the square groove 7 inside the gearbox 1, the bearing body 5 is installed in the bearing hole 4 in the gearbox 1, the bolt 3 passes through the upper bracket 9 of the motor and extends to the screw hole of the gearbox 1, and the bolt 3 is used to fix and lock the connection between the gearbox 1 and the motor body 2.

[0019] Specifically, the assembly of the gearbox 1 will be completed with the bearing hole 4 as the center of the circle, and the assembly of the motor body 2 will be completed with the motor center axis 10 as the center of the circle. During assembly, the worker first fixes the bearing body 5 on the motor center axis 10, and then sleeves the transmission tooth 6 on the motor center axis 10, that is, the upper end of the bearing body 5. When the gearbox 1 and the motor body 2 are assembled, the square boss 8 on the motor upper bracket 9 cooperates with the square groove 7 inside the gearbox 1, and the square boss 8 is stuck in the square groove 7. This is a preliminary positioning and anti-fool effect. Such a design ensures the directional consistency of the gearbox 1 and the motor body 2 when assembled together during mass production. Because the square groove 7 and the square boss 8 have an anti-fool and preliminary positioning function, precise positioning cannot be achieved. At this time, the bearing body 5 on the motor center axis 10 can be accurately installed in the bearing hole 4 of the gearbox 1, because the bearing hole 4 below the gearbox 1 is precisely matched with the bearing body 5 on the motor center axis 10, thereby ensuring that the center of the gearbox 1 and the center of the motor body 2 are on the same center line.

[0020] In this embodiment, the transmission tooth 6 is installed on the central axis of the motor body 2, and the center lines of the motor body 2, the motor central axis 10, the bearing body 5, the transmission tooth 6, the bearing hole 4, and the gearbox 1 are located on the same straight line.

[0021] Specifically, by clamping the square boss 8 of the upper motor bracket 9 into the square groove 7 inside the gearbox 1, the portion of the motor center shaft 10 where the bearing body 5 is mounted is matched with the bearing hole 4 at the bottom of the gearbox 1, so as to achieve the purpose of the gearbox 1 and the motor center shaft 10 being on the same center line, which facilitates the precise positioning and installation of the gearbox 1 and the motor body 2. Finally, the bolt 3 passes through the upper motor bracket 9 and locks the gearbox 1 together, thereby achieving an assembly purpose of reducing kinetic energy loss.

[0022] Working principle:

[0023] When in use, the assembly of the gearbox 1 will be completed with the bearing hole 4 as the center of the circle, and the assembly of the motor body 2 will be completed with the motor center axis 10 as the center of the circle. During assembly, the worker first fixes the bearing body 5 on the motor center axis 10, and then sleeves the transmission tooth 6 on the motor center axis 10, that is, the upper end of the bearing body 5. When the gearbox 1 and the motor body 2 are assembled, the square boss 8 on the motor upper bracket 9 cooperates with the square groove 7 inside the gearbox 1, and the square boss 8 is stuck in the square groove 7. This is a preliminary positioning and anti-foolproofing function. Such a design ensures the directional consistency of the gearbox 1 and the motor body 2 when assembled together during mass production. Because the square groove 7 and the square boss 8 have a fool-proofing and preliminary positioning function, precise positioning cannot be achieved. At this time, the bearing body 5 on the motor center axis 10 can be accurately installed Installed in the bearing hole 4 of the gearbox 1, because the bearing hole 4 below the gearbox 1 is precisely matched with the bearing body 5 on the motor center shaft 10, it is ensured that the center of the gearbox 1 and the center of the motor body 2 are on the same center line, and finally the bolt 3 passes through the upper bracket 9 of the motor and locks it with the gearbox 1, thereby achieving an assembly with reduced kinetic energy loss. By clamping the square boss 8 in the square groove 7, and then accurately installing the bearing body 5 on the motor center shaft 10 in the bearing hole 4 of the gearbox 1, the purpose of the center of the gearbox 1 and the center of the motor body 2 being on the same center line can be achieved, thereby completing the precise positioning and installation of the gearbox 1 and the motor body 2, and then the bolt 3 passes through the upper bracket 9 of the motor and locks it with the gearbox 1, thereby achieving an assembly with reduced kinetic energy loss.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lithium-ion nail gun motor gearbox assembly structure, comprising a lithium-ion nail gun body (11), characterized in that: A gearbox (1) is installed inside the lithium-ion nail gun body (11), a bearing hole (4) is opened inside the gearbox (1), a square groove (7) is provided on the inner side wall of the gearbox (1), the lower end of the gearbox (1) is fixedly connected to the motor upper bracket (9), the lower end of the motor upper bracket (9) is fixedly connected to the motor body (2), a motor center shaft (10) is installed inside the motor body (2), the motor center shaft (10) passes through the inside of the motor upper bracket (9), the motor center shaft (10) and the motor upper bracket (9) are movably connected, a bearing body (5) is installed on the outer side of the motor center shaft (10), a transmission gear (6) is fixedly sleeved on the upper end of the motor center shaft (10), the motor upper bracket (9) is provided with a square boss (8), and bolts (3) are provided at some positions of the motor upper bracket (9).

2. The lithium battery nail gun motor gearbox assembly structure according to claim 1, characterized in that: The square boss (8) is stuck in the square groove (7) inside the gearbox (1), and the bearing body (5) is installed in the bearing hole (4) inside the gearbox (1).

3. The lithium battery nail gun motor gearbox assembly structure according to claim 1, characterized in that: The bolt (3) passes through the upper bracket (9) of the motor and extends to the screw hole of the gearbox (1), and the connection between the gearbox (1) and the motor body (2) is fixed and locked by the bolt (3).

4. The lithium battery nail gun motor gearbox assembly structure according to claim 1, characterized in that: The transmission tooth (6) is mounted on the central axis of the motor body (2), and the central lines of the motor body (2), the motor central axis (10), the bearing body (5), the transmission tooth (6), the bearing hole (4), and the gearbox (1) are located on the same straight line.

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