Double lithium battery bolt wrench

Abstract

The utility model relates to the technical field of railway maintenance tools, in particular to a double-lithium-battery bolt wrench. A double-lithium-battery bolt wrench comprises a lithium battery assembly, a control assembly, a power assembly, an impact assembly, an output main shaft and a sleeve. The control assembly is connected with the power assembly and used for controlling the state of the power assembly. The lithium battery assembly is fixedly connected with the power assembly and used for supplying power to the power assembly. The power assembly is connected with the impact assembly and used for providing power for rotation and impact of the impact assembly. One end of the output spindle is connected with the impact assembly, and the other end of the output spindle is connected with the sleeve and used for transmitting rotating force of the impact assembly to the sleeve to enable the sleeve to rotate to disassemble and assemble bolts. The utility model has the beneficial effects that the lithium battery assembly is arranged to provide energy for the power assembly, so that the noise during operation is reduced, the failure rate and the maintenance cost are reduced, the rechargeable lithium battery assembly does not need to be equipped with a generator car, and the use cost is low.

Description

Technical Field

[0001] This application relates to the field of railway maintenance tools, and more specifically, to a dual lithium-ion battery bolt wrench. Background Technology

[0002] Wrenches are used extensively during railway maintenance to loosen and tighten track fasteners and fishplate bolts. Currently, internal combustion bolt wrenches or externally powered AC electric wrenches are used during disassembly and installation.

[0003] Internal combustion bolt wrenches are heavy, noisy, emit exhaust fumes, and are uncomfortable for operators. They cannot be turned off when moving from one sleeper to another, resulting in a high failure rate and high maintenance costs. External power AC electric wrenches are more complex, require a generator, and have higher operating costs. Utility Model Content

[0004] The purpose of this application is to provide a dual lithium battery bolt wrench that can solve the above-mentioned technical problems.

[0005] This utility model provides a dual lithium battery bolt wrench, including a lithium battery assembly, a control assembly, a power assembly, an impact assembly, an output spindle, and a sleeve;

[0006] The control assembly is connected to the powertrain and is used to control the state of the powertrain;

[0007] The lithium battery assembly is fixedly connected to the powertrain and is used to supply power to the powertrain.

[0008] The powertrain is connected to the shock assembly and is used to provide power for the rotation and impact of the shock assembly;

[0009] One end of the output spindle is connected to the impact assembly, and the other end is connected to the sleeve, which is used to transmit the rotational force of the impact assembly to the sleeve, so that the sleeve rotates to install or remove bolts.

[0010] In an optional embodiment, the lithium battery assembly includes a battery mounting bracket and a lithium battery module;

[0011] The battery mounting bracket has a battery mounting slot, and the lithium battery module is disposed in the battery mounting slot;

[0012] The battery mounting bracket has a connecting structure for fixing the battery mounting bracket to the control assembly and the powertrain.

[0013] In an optional embodiment, the connection structure includes a mounting frame and a rod connector.

[0014] The mounting frame is U-shaped;

[0015] The battery mounting bracket is disposed within the mounting frame;

[0016] The rod connector is located at the open end of the mounting frame and is used to seal the mounting frame to install the battery mounting bracket.

[0017] In an optional embodiment, the powertrain includes a power housing, a drive motor, and a planetary gear assembly;

[0018] Both the drive motor and the planetary gear assembly are housed within the power housing, and the drive motor is electrically connected to the lithium battery assembly.

[0019] The planetary gear assembly connects the output shaft of the drive motor and the shock assembly.

[0020] In an optional embodiment, the sun gear of the planetary gear assembly is connected to the output shaft of the drive motor, the ring gear of the planetary gear assembly is fixedly disposed within the power housing, the planet gears of the planetary gear assembly are rotatably disposed on the planet carrier, and the planet carrier is connected to the impact assembly.

[0021] In an optional embodiment, the impact assembly includes an impact housing, a drive shaft, an impact base, balls, and an elastic element;

[0022] The drive shaft, the impact base, and the elastic element are all disposed inside the impact housing, and the impact housing is fixedly connected to the power housing of the powertrain.

[0023] One end of the drive shaft is connected to the power output end of the powertrain, and the other end of the drive shaft is inserted into the impact base;

[0024] The outer wall of the drive shaft is provided with a first drive groove, and the inner wall of the impact base is provided with a second drive groove. The first drive groove and the second drive groove are provided correspondingly to form a drive hole, and the ball is disposed in the drive hole.

[0025] The output spindle is connected to one end of the impact base;

[0026] The elastic element is connected to the other end of the impact base and is used to apply a force to the impact base in the direction of the output spindle.

[0027] In an optional embodiment, the first drive groove includes a pair of spiral grooves;

[0028] The two spiral grooves within the same first drive groove have opposite rotation directions, and the connecting end of the two spiral grooves is located near the output spindle.

[0029] In an optional embodiment, there are multiple first drive slots, which are evenly arranged around the axis of the drive shaft.

[0030] In an optional embodiment, the end of the impact base is provided with a connecting groove, and the side wall of the connecting groove is provided with a shoulder.

[0031] The output spindle is provided with a claw at its end, which is located in the connecting groove. The shoulder cooperates with the claw to drive the output spindle to rotate.

[0032] In an optional embodiment, the impact base is provided with an elastic groove, and one end of the elastic element is disposed in the elastic groove.

[0033] The beneficial effects of this utility model are as follows:

[0034] By using lithium battery modules to power the powertrain, noise during operation is reduced, as well as failure rates and maintenance costs. The rechargeable lithium battery modules eliminate the need for a generator vehicle, resulting in low operating costs. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A front view of the dual lithium battery bolt wrench provided in an embodiment of this utility model;

[0037] Figure 2 for Figure 1 AA section view;

[0038] Figure 3 for Figure 2 A magnified view of section B;

[0039] Figure 4 for Figure 1 Side view;

[0040] Figure 5 for Figure 4 CC section view;

[0041] Figure 6 for Figure 5 A magnified view of a portion at point D;

[0042] Figure 7A three-dimensional structural schematic diagram of the dual lithium battery bolt wrench provided in this embodiment of the utility model;

[0043] Figure 8 A three-dimensional structural diagram of the lithium battery assembly of the dual lithium-ion bolt wrench provided in this embodiment of the utility model;

[0044] Figure 9 A three-dimensional structural diagram of the battery frame plate of the dual lithium-ion bolt wrench provided in this embodiment of the utility model;

[0045] Figure 10 A three-dimensional structural schematic diagram of the mounting frame of the dual lithium battery bolt wrench provided in this embodiment of the utility model;

[0046] Figure 11 A three-dimensional structural diagram of the rod connecting seat of the dual lithium battery bolt wrench provided in this embodiment of the utility model;

[0047] Figure 12 A partial cross-sectional view of the planetary gear assembly of the dual lithium-ion bolt wrench provided in this embodiment of the utility model;

[0048] Figure 13 A front view of the planetary carrier of the dual lithium-ion bolt wrench provided in an embodiment of this utility model;

[0049] Figure 14 for Figure 13 Side view;

[0050] Figure 15 for Figure 13 A schematic diagram of the three-dimensional structure;

[0051] Figure 16 A front view of the impact base of the dual lithium-ion bolt wrench provided in an embodiment of this utility model;

[0052] Figure 17 for Figure 16 EE sectional view;

[0053] Figure 18 for Figure 16 A bottom view;

[0054] Figure 19 for Figure 16 A schematic diagram of the three-dimensional structure;

[0055] Figure 20 A three-dimensional structural diagram of the output spindle of the dual lithium-ion bolt wrench provided in this embodiment of the utility model.

[0056] Icons: 1-Control assembly; 2-Lithium battery assembly; 3-Power assembly; 4-Impact assembly; 5-Output spindle; 6-Sleeve; 7-Impact housing; 8-Impact base; 9-Elastic element; 10-Drive shaft; 11-Gear ring; 12-Planetary gear; 13-Output shaft; 14-Planetary carrier; 15-Ball bearing; 16-Lighting assembly; 17-First drive slot; 18-Limit slot; 19-Switch assembly; 20-Forward / reverse adjustment switch; 21-Handle housing; 22-Rubber sleeve; 23-Handle; 24-Connecting rod; 25-Battery mounting bracket; 26-Lithium battery module; 27-Battery frame plate; 28-Mounting frame; 29-Fixing slot plate; 30-Seat plate; 31-Positioning slot plate; 32-Connecting slot; 33-Second drive slot; 34-Shoulder; 35-Lubricating oil groove; 36-Claw. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0058] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0059] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] This utility model provides a dual lithium battery bolt wrench, such as Figures 1 to 20As shown, the assembly includes a lithium battery module 2, a control assembly 1, a power assembly 3, an impact assembly 4, an output spindle 5, and a sleeve 6. The control assembly 1 is connected to the power assembly 3 and is used to control the state of the power assembly 3. The lithium battery module 2 is fixedly connected to the power assembly 3 and is used to supply power to the power assembly 3. The power assembly 3 is connected to the impact assembly 4 and is used to provide power for the rotation and impact of the impact assembly 4. One end of the output spindle 5 is connected to the impact assembly 4, and the other end is connected to the sleeve 6, which is used to transmit the rotational power of the impact assembly 4 to the sleeve 6, so that the sleeve 6 rotates to install or remove bolts.

[0061] In this embodiment, the control assembly 1 includes a forward / reverse adjustment switch 20, a switch assembly 19, a handle 23, a connecting rod 24, a handle housing 21, and a rubber sleeve 22. One end of the connecting rod 24 is connected to the lithium battery assembly 2, and the other end is connected to the handle 23 through the handle housing 21. The forward / reverse adjustment switch 20 and the switch assembly 19 are disposed on the handle housing 21, and the rubber sleeve 22 is disposed on the handle 23.

[0062] The entire dual lithium-ion bolt wrench is controlled by the handle 23. The switch assembly 19 is connected to the power assembly 3 to control the opening and closing of the power assembly 3. The forward and reverse adjustment switch 20 is connected to the power assembly 3 to control the output direction of the power assembly 3. The rubber sleeve 22 on the handle 23 increases the stability when operating the handle 23.

[0063] In this embodiment, the power assembly 3 is connected to the impact assembly 4, and the impact assembly 4 is connected to the sleeve 6 through the output spindle 5. The sleeve 6 is fitted onto the bolt, driving the bolt to rotate, thereby realizing the installation and removal of the bolt.

[0064] In this embodiment, the lithium battery is used as the power source for the powertrain 3, which enables the bolt wrench to have a larger transmission power, a more stable torque output, and better control over the torque and speed of the lithium battery bolt wrench.

[0065] In alternative implementations, such as Figure 8 and Figure 9 As shown, the lithium battery assembly 2 includes a battery mounting bracket 25 and a lithium battery module 26; the battery mounting bracket 25 has a battery mounting slot, and the lithium battery module 26 is disposed in the battery mounting slot; the battery mounting bracket 25 has a connecting structure, which is used to fix the battery mounting bracket 25 to the control assembly 1 and the power assembly 3.

[0066] In this embodiment, the battery mounting bracket 25 is an integral structure formed by fastening two battery frame plates 27 together and fixing them together with bolts.

[0067] Specifically, in this embodiment, after the battery frame plate 27 is fastened, a connecting cavity is formed inside, with a battery mounting slot on each side. The battery mounting slots are used to install the lithium battery module 26, and the connecting cavity is used for the passage of connecting wires. That is, the control wires on the forward and reverse adjustment switch 20 and the switch assembly 19 enter the connecting cavity along the inside of the connecting rod 24 and connect to the lithium battery module 26 in the battery mounting slot, or pass through the connecting cavity and connect to the power assembly 3 below.

[0068] In this embodiment, the lithium battery module 26 is installed in the battery mounting slot by a snap-fit ​​connection.

[0069] In alternative implementations, such as Figure 10 and Figure 11 As shown, the connection structure includes a mounting frame 28 and a rod connector; the mounting frame 28 is U-shaped; the battery mounting bracket 25 is disposed inside the mounting frame 28; the rod connector is disposed at the open end of the mounting frame 28 and is used to seal the mounting frame 28 to install the battery mounting bracket 25.

[0070] In this embodiment, as Figure 7 and Figure 10 As shown, the mounting frame 28 is U-shaped, which covers the battery mounting bracket 25 from the bottom upwards and is fixed at the top by a rod connector, forming a whole with the battery mounting bracket 25 and the mounting frame 28.

[0071] The rod connector is used to fix one end of the connecting rod 24, thereby achieving a fixed connection between the connecting rod 24 and the battery mounting bracket 25.

[0072] Specifically, in this embodiment, such as Figure 11 As shown, the rod connecting seat includes a seat plate 30, a fixing groove plate 29, and a positioning groove plate 31. Both the fixing groove plate 29 and the positioning groove plate 31 are semi-circular grooves, which are fixedly connected by bolts to form a circular cylindrical structure, which can fix the connecting rod 24 inside the cylindrical structure. One end of the fixing groove plate 29 is fixed on the seat plate 30, and the seat plate 30 is fixedly connected to the mounting frame 28 by bolts.

[0073] In this embodiment, a lighting assembly 16 is fixedly connected to the lower part of the mounting frame 28. The lighting assembly 16 illuminates in the direction of the bolt, which facilitates nighttime operations.

[0074] The powertrain 3 is fixedly connected to the lower end of the lighting assembly 16.

[0075] In this embodiment, the energy for the lighting assembly 16 also comes from the lithium battery assembly 2.

[0076] In an optional embodiment, the powertrain 3 includes a power housing, a drive motor, and a planetary gear assembly; both the drive motor and the planetary gear assembly are disposed within the power housing, and the drive motor is electrically connected to the lithium battery assembly 2; the planetary gear assembly connects the output shaft 13 of the drive motor and the impact assembly 4.

[0077] In this embodiment, the drive motor provides rotational power to the planetary gear assembly, driving the impact assembly 4 to move and rotate axially, thus completing the rotational drive of the impact and the bolt.

[0078] Specifically, in this embodiment, the drive motor is connected to the lithium battery component 2 and the switch assembly 19, and the power-on state of the lithium battery component 2 is controlled by the switch assembly 19; the drive motor is also connected to a forward and reverse adjustment switch, and the forward and reverse rotation of the drive motor is controlled by the forward and reverse adjustment switch to achieve the purpose of installing or removing bolts.

[0079] In alternative implementations, such as Figure 3 , Figure 6 and Figure 12 As shown, the sun gear of the planetary gear assembly is connected to the output shaft 13 of the drive motor, the ring gear 11 of the planetary gear assembly is fixedly disposed in the power housing, and the planet gears 12 of the planetary gear assembly are rotatably disposed on the planet carrier 14, which is connected to the impact assembly 4.

[0080] In this embodiment, the sun gear and output shaft 13 of the planetary gear assembly are an integral structure, that is, the outer surface of one end of the output shaft 13 has teeth that mesh with the planet gear 12, and can be inserted into the planet carrier 14 to mesh with the planet gear 12 for driving the planet gear 12 to rotate.

[0081] In this embodiment, the planetary gear 12 is a helical gear. Similarly, the end of the output shaft 13 has helical teeth, which can drive the planetary gear 12 to rotate through mutual cooperation.

[0082] By integrating the sun gear with the output shaft 13, the connection structure can be reduced, and the driving stability of the planet gears 12 can be increased.

[0083] In this embodiment, the planetary carrier 14 and the drive shaft 10 are an integral structure, which can ensure the connection strength and connection stability between the planetary carrier 14 and the drive shaft 10.

[0084] In this embodiment, the output shaft 13 of the drive motor is connected to the sun gear, which drives the sun gear to rotate. The sun gear drives the planet gear 12 to rotate. Since the gear ring 11 is fixed, the planet gear 12 drives the planet carrier 14 to rotate. The planet carrier 14 is connected to the impact assembly 4, which drives the impact assembly 4 to rotate and move axially.

[0085] Power is transmitted through planetary gear assemblies, resulting in a small overall size and light weight, making it easy to move and carry.

[0086] In alternative implementations, such as Figure 3 and Figure 6 As shown, the impact assembly 4 includes an impact housing 7, a drive shaft 10, an impact base 8, ball bearings 15, and an elastic element 9. The drive shaft 10, the impact base 8, and the elastic element 9 are all disposed within the impact housing 7, which is fixedly connected to the power housing of the power assembly 3. One end of the drive shaft 10 is connected to the power output end of the power assembly 3, and the other end of the drive shaft 10 is inserted into the impact base 8. A first drive groove 17 is provided on the outer wall of the drive shaft 10, and a second drive groove 33 is provided on the inner wall of the impact base 8. The first drive groove 17 and the second drive groove 33 are correspondingly arranged to form a drive hole, and the ball bearings 15 are disposed within the drive hole. The output spindle 5 is connected to one end of the impact base 8, and the elastic element 9 is connected to the other end of the impact base 8 to apply a force to the impact base 8 in the direction of the output spindle 5.

[0087] Specifically, in this embodiment, such as Figures 16-19 As shown, one end of the impact base 8 is connected to the output spindle 5, and the other end is provided with a limiting groove 18. One end of the elastic element 9 is set in the limiting groove 18. The limiting groove 18 axially limits the elastic element 9 to ensure the stability of the impact base 8 when it moves axially.

[0088] In alternative implementations, such as Figure 13 , Figure 14 and Figure 15 As shown, the first drive groove 17 includes a pair of spiral grooves; the two spiral grooves in the same first drive groove 17 have opposite directions of rotation, and the connecting end of the two spiral grooves is located near the end of the output spindle 5.

[0089] In this embodiment, the paired first drive slots 17 form a V-shape in appearance.

[0090] In an optional embodiment, there are multiple first drive slots 17, and the multiple first drive slots 17 are evenly arranged around the axis of the transmission shaft 10.

[0091] In this embodiment, there are two first drive slots 17.

[0092] In an optional embodiment, the end of the impact base 8 is provided with a connecting groove 32, and the side wall of the connecting groove 32 is provided with a shoulder 34; the end of the output spindle 5 is provided with a claw 36, the claw 36 is disposed in the connecting groove 32, and the shoulder 34 cooperates with the claw 36 to drive the output spindle 5 to rotate.

[0093] In this embodiment, one end of the output spindle 5 is disposed in the connecting groove 32. Through the cooperation of the protruding claw 36 and the protruding shoulder 34, the impact base 8 can drive the output spindle 5 to rotate when it rotates. Under the action of the first drive groove 17 and the ball 15, the impact base 8 can generate an impact on the output spindle 5.

[0094] In this embodiment, the bottom of the connecting groove 32 has a lubricating oil groove 35. By filling the lubricating oil groove 35 with lubricating oil, the friction between the impact base 8 and the output spindle 5 can be reduced, and the heat dissipation between the two can be accelerated.

[0095] In an optional embodiment, the impact base 8 is provided with an elastic groove, and one end of the elastic member 9 is disposed in the elastic groove.

[0096] In this embodiment, the elastic element 9 is a compression spring, one end of which abuts against the bottom of the elastic groove on the impact base 8, and the other end abuts against the end of the impact housing 7, thereby applying a force to the impact base 8 in the direction of the output spindle 5.

[0097] It is understood that in this embodiment, the elastic element 9 can be a compression spring, but it is not limited to compression springs; it can also be other elastic structures.

[0098] As can be seen from the above, when the dual lithium-ion battery bolt wrench provided by this utility model is in operation, the switch assembly 19 is pressed first, the drive motor starts working, and the torque output by the drive motor is transmitted to the planetary carrier 14 through the planetary gear, and then to the transmission shaft 10. The transmission shaft 10 starts to rotate, driving the ball bearings 15 in the first drive groove 17 on the transmission shaft 10 to move. Under the downward pressure of the compression spring, the ball bearings 15 drive the impact base 8 to rotate. The two protrusions 34 of the impact base 8 impact the output spindle 5. Under the action of the impact force, the output spindle 5 drives the bolt to rotate through the sleeve 6. When the resistance torque of the bolt exceeds the downward pressure transmitted by the compression spring to the impact base 8, the impact base 8, under the restriction of the ball bearings 15, retracts along the first drive groove 17 on the transmission shaft 10, causing the protrusions 34 of the impact base 8 to disengage from the protrusions 36 of the output spindle 5. At this time, the impact base 8 continues to rotate under the drive of the drive motor. After the shoulder 34 crosses the claw 36, the impact base 8 moves forward under the action of the compression spring, generating an additional angular velocity. The shoulder 34 impacts the claw 36, generating an impact torque, which is then transmitted to the bolt and nut through the sleeve 6, causing the bolt or nut to rotate by an angle. This cycle of impact continues until the bolt installation and removal work is completed.

[0099] The beneficial effects of this utility model are as follows:

[0100] By setting up lithium battery module 2 to provide energy to powertrain 3, noise during operation is reduced, as well as failure rate and maintenance cost. The rechargeable lithium battery module 2 eliminates the need for a generator vehicle, resulting in low operating costs.

[0101] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0102] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dual-lithium-battery bolt wrench, characterized in that, Includes lithium battery components, control assembly, powertrain, impact assembly, output spindle, and sleeve; The control assembly is connected to the powertrain and is used to control the state of the powertrain; The lithium battery assembly is fixedly connected to the powertrain and is used to supply power to the powertrain. The powertrain is connected to the shock assembly and is used to provide power for the rotation and impact of the shock assembly; One end of the output spindle is connected to the impact assembly, and the other end is connected to the sleeve, which is used to transmit the rotational force of the impact assembly to the sleeve, so that the sleeve can rotate to install or remove bolts. The lithium battery assembly includes a lithium battery module; The powertrain includes a power housing, a drive motor, and a planetary gear assembly; Both the drive motor and the planetary gear assembly are housed within the power housing, and the drive motor is electrically connected to the lithium battery assembly. The planetary gear assembly connects the output shaft of the drive motor and the shock assembly; The impact assembly includes an impact housing, a drive shaft, an impact base, balls, and elastic elements; The drive shaft, the impact base, and the elastic element are all disposed inside the impact housing, and the impact housing is fixedly connected to the power housing of the powertrain. One end of the drive shaft is connected to the power output end of the powertrain, and the other end of the drive shaft is inserted into the impact base; The outer wall of the drive shaft is provided with a first drive groove, and the inner wall of the impact base is provided with a second drive groove. The first drive groove and the second drive groove are provided correspondingly to form a drive hole, and the ball is disposed in the drive hole. The output spindle is connected to one end of the impact base; The elastic element is connected to the other end of the impact base and is used to apply a force to the impact base in the direction of the output spindle.

2. The dual lithium battery bolt wrench according to claim 1, characterized in that, The lithium battery assembly also includes a battery mounting bracket; The battery mounting bracket has a battery mounting slot, and the lithium battery module is disposed in the battery mounting slot; The battery mounting bracket has a connecting structure for fixing the battery mounting bracket to the control assembly and the powertrain.

3. The dual lithium battery bolt wrench according to claim 2, characterized in that, The connection structure includes a mounting frame and a rod connector; The mounting frame is U-shaped; The battery mounting bracket is disposed within the mounting frame; The rod connector is located at the open end of the mounting frame and is used to seal the mounting frame to install the battery mounting bracket.

4. The dual lithium battery bolt wrench according to claim 1, characterized in that, The sun gear of the planetary gear assembly is connected to the output shaft of the drive motor. The ring gear of the planetary gear assembly is fixedly disposed inside the power housing. The planet gears of the planetary gear assembly are rotatably disposed on the planet carrier. The planet carrier is connected to the impact assembly.

5. The dual lithium battery bolt wrench according to claim 1, characterized in that, The first drive groove includes a pair of spiral grooves; The two spiral grooves within the same first drive groove have opposite rotation directions, and the connecting end of the two spiral grooves is located near the output spindle.

6. The dual lithium battery bolt wrench according to claim 5, characterized in that, There are multiple first drive slots, and these multiple first drive slots are evenly arranged around the axis of the transmission shaft.

7. The dual lithium battery bolt wrench according to claim 1, characterized in that, The impact base is provided with a connecting groove at its end, and a shoulder is provided on the side wall of the connecting groove. The output spindle is provided with a claw at its end, which is located in the connecting groove. The shoulder cooperates with the claw to drive the output spindle to rotate.

8. The dual lithium battery bolt wrench according to claim 1, characterized in that, The impact base is provided with an elastic groove, and one end of the elastic element is disposed in the elastic groove.

Images