Lithium battery wrench capable of achieving continuous lubrication

Abstract

The invention relates to the technical field of electric wrenches, and discloses a lithium electric wrench capable of continuously lubricating, which comprises a front cover, an end cover, a left handle and a right handle, the screwing impact mechanism is arranged between the front cover and the end cover; the power mechanism is arranged in the front cover; the lubricating mechanism is arranged in the end cover; the base is mounted at the bottom of the left handle; and the rear cover is arranged at one end of the front cover. The motor stator drives the motor rotor to rotate, the center frame is driven to rotate through meshing transmission of the planetary gear and the gear ring, the impact block generates impact torque under the action of the impact spring and the guide steel ball, the impact torque is transmitted to a working part through the output square shaft, and fastening or dismounting of a bolt is achieved. The parts of the screwing impact mechanism and the power mechanism are reasonably arranged, it is guaranteed that power transmission is efficient and stable, meanwhile, a reasonable space is provided for installation of a lubricating mechanism, frequent maintenance by professionals is not needed, and the service life of equipment is effectively prolonged.

Description

Technical Field

[0001] This invention relates to the field of electric wrench technology, specifically a sustainably lubricated lithium-ion electric wrench. Background Technology

[0002] An electric wrench is an electric tool that is powered by electricity and is specifically used for tightening or loosening bolts / nuts. Its core function is to efficiently complete high-torque tightening operations.

[0003] Currently, there are various types of lithium battery wrenches on the market. However, these lithium battery wrenches cannot achieve rapid or continuous lubrication during long-term use. Using them without lubrication will significantly shorten their lifespan and require professional maintenance, increasing usage costs and operational inconvenience.

[0004] Therefore, a sustainable lubrication lithium battery wrench is proposed. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] Given that the existing lithium-ion battery wrenches lack an effective lubrication solution and cannot maintain continuous lubrication during long-term operation, resulting in a shortened service life, the need for professional maintenance, and high operating costs.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A sustainable lubricated lithium-ion battery wrench, comprising: Front cover, end cover, left handle, and right handle; A screwing impact mechanism is disposed between the front cover and the end cover; A power mechanism, wherein the power mechanism is disposed inside the front cover; A lubrication mechanism is disposed inside the end cap; A base, which is mounted on the bottom of the left handle; A rear cover, which is disposed at one end of the front cover.

[0008] As a further embodiment of the present invention: the screwing impact mechanism includes an output shaft sleeve, an output square shaft, a central frame, an impact block, an impact spring, a guide steel ball, a planetary gear and a gear ring. The output shaft sleeve is disposed inside the end cover. The output square shaft is connected to one end of the output shaft sleeve. The central frame is installed between the output shaft sleeve and the output square shaft. The impact block is disposed on the central frame.

[0009] As a further embodiment of the present invention: the impact spring is disposed on the surface of the central frame, the guide steel ball is disposed between the impact block and the central frame, the planetary gear is sleeved on the surface of the output square shaft, and the gear ring is disposed outside the planetary gear.

[0010] As a further embodiment of the present invention: the power mechanism includes an aluminum rear cover, a motor stator, a start switch and a motor controller, the aluminum rear cover is disposed inside the front cover and located on one side of the planetary gear, and the motor stator is disposed inside the front cover.

[0011] As a further embodiment of the present invention: the start switch is located between the left handle and the right handle, and the motor controller is installed inside the base.

[0012] As a further embodiment of the present invention: the bottom of the base is provided with an installation groove, and one end of the central frame is connected to a connector.

[0013] As a further embodiment of the present invention: a gasket, an oil nozzle, an oil nozzle ball, and an oil nozzle spring are respectively provided inside the end cap and below the connector.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention drives the motor rotor to rotate through the stator of the motor, and drives the central frame to rotate through the meshing transmission of the planetary gear and the gear ring. The impact block generates impact torque under the action of the impact spring and the guide steel ball, which is transmitted to the working part through the output square shaft to realize the tightening or loosening of the bolt. The component positions of the screwing impact mechanism and the power mechanism are reasonably arranged to ensure efficient and stable power transmission, while providing reasonable space for the installation of the lubrication mechanism.

[0015] 2. This invention adds lubricating oil to the oil storage cavity through the oil injection nozzle. The lubricating oil first directly lubricates the output square shaft and the output shaft sleeve. The vibration generated by the high-speed rotation of the output square shaft causes the lubricating oil to splash onto the impact block, planetary gear and gear ring surface through the oil guide groove of the front cover, achieving continuous lubrication. The reasonable design of the lubrication mechanism realizes automatic continuous lubrication during the operation of the lithium battery wrench, eliminating the need for frequent maintenance by professional personnel and effectively extending the service life of the equipment. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a first embodiment of a sustainably lubricated lithium battery wrench provided by the present invention; Figure 2 for Figure 1 The diagram shows a three-dimensional structure of the electric wrench from a first-person external perspective. Figure 3 for Figure 1 The diagram shows a three-dimensional structure of the electric wrench from a second external perspective. Figure 4 for Figure 1 The diagram shows a three-dimensional structure of the electric wrench from an external third-person perspective. Figure 5 for Figure 1 The diagram shows a partial structural schematic of the external grease nipple, grease ball, and lubrication mechanism of the electric wrench.

[0017] In the diagram: 1. Left handle; 2. Start switch; 4. Washer; 5. Center frame; 6. Planetary gear; 8. Impact block; 10. Gear ring; 13. Front cover; 17. Output shaft sleeve; 18. Impact spring; 21. Output square shaft; 22. Motor stator; 23. Motor controller; 26. Rear cover; 27. Right handle; 28. Oil filler nozzle; 29. ​​Oil filler ball; 30. Oil filler spring; 40. Guide ball; 50. Power mechanism; 60. Twisting impact mechanism; 70. Base; 80. Mounting slot; 90. End cover; 100. Lubrication mechanism. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more readily understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0021] Example 1: Please see Figure 1 - Figure 4 This is the first embodiment of the present invention. This embodiment provides a sustainably lubricated lithium-ion battery wrench, comprising: Front cover 13, end cover 90, left handle 1 and right handle 27; A screwing impact mechanism 60 is provided between the front cover 13 and the end cover 90. The power mechanism 50 is located inside the front cover 13; Lubrication mechanism 100 is disposed inside end cap 90; Base 70, which is installed at the bottom of the left handle 1; Rear cover 26, which is located at one end of the front cover 13.

[0022] For example, the screwing impact mechanism 60 includes an output shaft sleeve 17, an output square shaft 21, a center frame 5, an impact block 8, an impact spring 18, a guide steel ball 40, a planetary gear 6, and a gear ring 10. The output shaft sleeve 17 is disposed inside the end cover 90, the output square shaft 21 is connected to one end of the output shaft sleeve 17, the center frame 5 is installed between the output shaft sleeve 17 and the output square shaft 21, and the impact block 8 is disposed on the center frame 5.

[0023] Furthermore, the impact spring 18, in conjunction with the guide steel ball 40, enables the impact block 8 to elastically extend and retract within the central frame 5, ensuring stable torque transmission during twisting and impact.

[0024] For example, the impact spring 18 is disposed on the surface of the center frame 5, the guide steel ball 40 is disposed between the impact block 8 and the center frame 5, the planetary gear 6 is sleeved on the surface of the output square shaft 21, and the gear ring 10 is disposed outside the planetary gear 6.

[0025] Furthermore, the planetary gear 6 meshes with the gear ring 10 to transmit power, converting the rotational speed of the power mechanism 50 into the maximum torque of the output square shaft 21, thus meeting the bolt tightening / removal requirements.

[0026] For example, the power mechanism 50 includes an aluminum rear cover 16, a motor stator 22, a start switch 2, and a motor controller 23. The aluminum rear cover 16 is disposed inside the front cover 13 and located on one side of the planetary gear 6, and the motor stator 22 is disposed inside the front cover 13.

[0027] Furthermore, the aluminum back cover 16 also serves to fix the motor stator 22 and dissipate heat, which can prevent the motor from overheating and being damaged during long-term operation.

[0028] For example, the start switch 2 is located between the left handle 1 and the right handle 27, and the motor controller 23 is installed inside the base 70.

[0029] Furthermore, the motor controller 23 can precisely adjust the motor speed and torque, and the start switch 2 adopts a two-hand operation design to improve safety.

[0030] For example, the bottom of the base 70 has a mounting groove 80, and one end of the center frame 5 is connected to a connector.

[0031] Furthermore, the mounting slot 80 is used to accommodate battery pack installation, and the connector is used to enhance the connection stability between the center frame 5 and the output quad shaft 21.

[0032] When in use, press the start switch 2, the motor stator 22 drives the motor rotor to rotate, and the central frame 5 is driven to rotate through the meshing transmission of the planetary gear 6 and the gear ring 10. The impact block 8 generates impact torque under the action of the impact spring 18 and the guide steel ball 40, which is transmitted to the working part through the output square shaft 21 to realize the tightening or loosening of the bolt.

[0033] In summary, by rationally arranging the component positions of the screwing impact mechanism 60 and the power mechanism 50, efficient and stable power transmission is ensured, while providing reasonable space for the installation of the lubrication mechanism 100.

[0034] Example 2: Please see Figure 1 This is the second embodiment of the present invention.

[0035] For example, a gasket 4, an oil nozzle 28, an oil nozzle ball 29, and an oil nozzle spring are respectively provided inside the end cap 90 and below the connector.

[0036] Furthermore, the inner side of the front cover 13 is designed with an oil guide groove. One end of the oil guide groove is connected to the oil storage cavity, and the other end extends to the corresponding positions of the impact block 8, planetary gear 6 and gear ring 10. The gasket 4 is used to seal the oil storage cavity to prevent lubricating oil leakage. The oil nozzle steel ball 29 cooperates with the oil nozzle spring 30 to form a one-way oil injection structure to avoid the added lubricating oil from flowing back.

[0037] During use, lubricating oil is added to the oil storage chamber through the grease nipple 28. The lubricating oil first directly lubricates the output square shaft 21 and the output shaft sleeve 17. The vibration generated by the high-speed rotation of the output square shaft 21 causes the lubricating oil to splash through the oil guide groove of the front cover 13 onto the surfaces of the impact block 8, planetary gear 6 and gear ring 10, achieving continuous lubrication.

[0038] In summary, the rational design of the lubrication mechanism 100 enables automatic and continuous lubrication of the lithium battery wrench during operation, eliminating the need for frequent maintenance by professional personnel and effectively extending the service life of the equipment.

[0039] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0040] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0041] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A sustainably lubricated lithium-ion battery wrench, characterized in that: include: The system comprises a front cover (13), a rear cover (26), an end cover (90), a left handle (1), a right handle (27), and a base (70); the base (70) is mounted on the bottom of the left handle (1), and the rear cover (26) is disposed at one end of the front cover (13). It also includes: The rotating impact mechanism (60), the power mechanism (50), and the lubrication mechanism (100) are provided. The rotating impact mechanism (60) is located between the front cover (13) and the end cover (90), the power mechanism (50) is located inside the front cover (13), and the lubrication mechanism (100) is located inside the end cover (90).

2. The sustainably lubricated lithium-ion battery wrench according to claim 1, characterized in that: The rotating impact mechanism (60) includes: an output shaft sleeve (17), an output square shaft (21), a center frame (5), an impact block (8), an impact spring (18), a guide steel ball (40), a planetary gear (6), and a gear ring (10); the output shaft sleeve (17) is disposed inside the end cover (90), the output square shaft (21) is connected to one end of the output shaft sleeve (17), the center frame (5) is installed between the output shaft sleeve (17) and the output square shaft (21), and the impact block (8) is disposed on the center frame (5).

3. A sustainable lubrication lithium battery wrench according to claim 2, characterized in that: The impact spring (18) is disposed on the surface of the center frame (5), the guide steel ball (40) is disposed between the impact block (8) and the center frame (5), the planetary gear (6) is sleeved on the surface of the output square shaft (21), and the gear ring (10) is disposed outside the planetary gear (6).

4. A sustainably lubricated lithium-ion battery wrench according to claim 1, characterized in that: The power mechanism (50) includes: an aluminum rear cover (26), a motor stator (22), a start switch (2), and a motor controller (23); the aluminum rear cover (26) is disposed inside the front cover (13) and located on one side of the planetary gear (6), and the motor stator (22) is disposed inside the front cover (13).

5. A sustainably lubricated lithium-ion battery wrench according to claim 4, characterized in that: The start switch (2) is located between the left handle (1) and the right handle (27), and the motor controller (23) is installed inside the base (70).

6. A sustainably lubricated lithium-ion battery wrench according to claim 1, characterized in that: The base (70) has an installation groove (80) at its bottom, and one end of the center frame (5) is connected to a connector.

7. A sustainably lubricated lithium-ion battery wrench according to claim 6, characterized in that: Inside the end cap (90) and below the connector, there are respectively a gasket (4), an oil nozzle (28), an oil nozzle ball (29) and an oil nozzle spring (30).

8. A sustainably lubricated lithium-ion battery wrench according to claim 2, characterized in that: The impact spring (18) is engaged with the guide steel ball (40), the planetary gear (6) is engaged with the gear ring (10) for transmission, and the inner side of the front cover (13) is designed with an oil guide groove.

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