Lithium battery torque wrench

Abstract

The utility model discloses a lithium battery torque wrench, and relates to the field of railway track operation, the lithium battery torque wrench comprises a lithium battery body, the top of the lithium battery body is fixedly provided with a grip, the top of the grip is fixedly provided with an outer shell, one side of the inner wall of the outer shell is fixedly provided with a second servo motor, and the power output end of the second servo motor is fixedly provided with a rotating shaft; and a second connecting rod is fixed at one end of the rotating shaft. According to the device, a first servo motor is controlled to rotate, the first servo motor drives a worm to rotate, then a worm gear and a guide rail are driven to rotate, the guide rail drives a sliding block to move, three limiting rods are attached to the outer portion of a nut or a nut to be rotated at the same time, and a second servo motor is controlled to rotate; the rotating shaft drives the second connecting ring, the first connecting ring and the limiting rod to rotate outside the nut and the bolt to disassemble and assemble the nut or the bolt, and therefore the effects that the size of the adapter matched with the nut and the bolt can be rapidly adjusted, and the working efficiency is improved are achieved.

Description

Technical Field

[0001] This application relates to the field of railway track work, and in particular to lithium-ion torque wrenches. Background Technology

[0002] In current rail transit systems, the operation of trains typically places significant loads on the track structure. Furthermore, the rail clamping connections are constantly exposed to the elements, suffering from wind, rain, freezing and thawing, and the dust and contaminants emitted by trains. Therefore, wrenches are essential for both railway construction and routine maintenance. A "lithium-ion battery wrench" is an electric wrench powered by a lithium battery. Lithium-ion battery wrenches are power tools commonly used to tighten or loosen bolts and nuts. Lithium-ion batteries are lightweight, high-energy-density batteries, making them widely used in power tools to provide a reliable power source.

[0003] Currently, lithium battery wrenches can only tighten or loosen bolts or nuts of one size per operation. If other sizes of bolts or nuts need to be tightened or loosened, the adapter needs to be changed manually. When tightening or loosening nuts and bolts, different sizes of bolts and nuts need to be disassembled and assembled frequently, which requires frequent replacement of the adapter, thus reducing work efficiency. Utility Model Content

[0004] To address the problem of frequent disassembly and assembly of bolts and nuts of different sizes, which necessitates frequent replacement of adapters and reduces work efficiency, this application provides a lithium-ion torque wrench.

[0005] The lithium-ion torque wrench provided in this application adopts the following technical solution: it includes a lithium-ion battery body, a handle fixed to the top of the lithium-ion battery body, an outer shell fixed to the top of the handle, a second servo motor fixed to one side of the inner wall of the outer shell, a rotating shaft fixed to the power output end of the second servo motor, a second connecting rod fixed to one end of the rotating shaft, a second connecting ring fixed to one side of the second connecting rod, a connecting block fixed to the outer wall of the second connecting ring, a first connecting ring fixed to one top end of the connecting block, a worm gear rotatably connected between the second connecting ring and the first connecting ring, a guide rail fixed to the side of the worm gear near the first connecting ring, a first connecting rod fixed to one side of the connecting block, a first servo motor fixed to one end of the first connecting rod, a worm gear fixed to the power output end of the first servo motor, a limit rod slidably connected to the top of the first connecting ring, a slider fixed to the bottom of the limit rod, the slider slidably connected to the guide rail, and the top of the first connecting ring located outside one end of the outer shell.

[0006] By adopting the above technical solution, the worm gear drives the guide rail to rotate, and the slider moves relative to the guide rail, so that the slider can move laterally.

[0007] Preferably, the worm and the worm wheel are located on the same horizontal plane, the worm and the worm wheel mesh with each other, and the connecting block is U-shaped.

[0008] By adopting the above technical solution, the first connecting ring and the second connecting ring are connected by a connecting block, so that the worm wheel can protrude outside the first connecting ring and the second connecting ring. The worm wheel can touch the worm, and the first servo motor drives the worm to rotate, thereby driving the worm wheel and the guide rail to rotate.

[0009] Preferably, the guide rail is arranged in a horizontal spiral shape, and three limiting rods are provided, with the distance between the opposite ends of the three limiting rods and the center point of the first connecting ring being the same.

[0010] By adopting the above technical solution, the slider is moved by the guide rail, so that the three limit rods can move at the same speed and can simultaneously fit with the outside of the nut or bolt to be rotated.

[0011] Preferably, there are multiple second connecting rods, each of which is fixed to one side of the second connecting ring, and the central axis of the rotating shaft is collinear with the central axis of the second connecting ring.

[0012] By adopting the above technical solution, the rotating shaft is connected to the second connecting ring through multiple second connecting rods, which increases the stability of the connection between the rotating shaft and the second connecting ring and prevents the rotating shaft from separating from the second connecting ring when rotating nuts and bolts that are difficult to rotate.

[0013] Preferably, a protrusion is fixed in the middle of the worm gear, and the thickness of the protrusion is greater than the thickness of the guide rail.

[0014] By adopting the above technical solution, the protrusion is set to protect the internal guide rail and slider, preventing the bolt from directly contacting the guide rail and causing damage to the device when the bolt is placed inside the first connecting ring.

[0015] Preferably, a control switch is fixed on one side of the grip, and two control switches are provided, which respectively control the first servo motor and the second servo motor.

[0016] By adopting the above technical solution, the first servo motor and the second servo motor can be controlled by pressing two control switches. The control switches can be controlled bidirectionally to control the forward and reverse rotation of the first servo motor and the second servo motor respectively.

[0017] Preferably, the first servo motor, the second servo motor, and the two control switches are all electrically connected to the lithium battery via wires inside the grip.

[0018] By adopting the above technical solution, the first servo motor and the second servo motor are powered by the lithium battery. When it is necessary to control the position of the limit rod, press the upper control switch, and when it is necessary to control the rotation of the first connecting ring, press the lower control switch.

[0019] In summary, this application includes at least the following beneficial technical effects:

[0020] 1. This application controls the rotation of a first servo motor, which drives the worm gear to rotate, thereby driving the worm wheel and guide rail to rotate. The guide rail drives the slider to move, and the three limit rods simultaneously engage with the outside of the nut or bolt to be rotated. The second servo motor is controlled to rotate, and the rotating shaft drives the second connecting ring, the first connecting ring, and the limit rods to rotate outside the nut or bolt, allowing for the assembly and disassembly of the nut or bolt. This achieves the effect of quickly adjusting the size of the adapter to fit the nut or bolt, thus improving work efficiency.

[0021] 2. This application allows control of the first servo motor and the second servo motor by pressing two control switches. The control switches can be used bidirectionally to control the forward and reverse rotation of the first servo motor and the second servo motor respectively. When it is necessary to control the position of the limit rod, press the upper control switch; when it is necessary to control the rotation of the first connecting ring, press the lower control switch, thus achieving convenient operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the lithium-ion torque wrench according to an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the internal structure of the outer shell in an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the structure at the second motor and the first connecting ring in an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the internal structure of the first connecting ring in an embodiment of this application;

[0026] Reference numerals in the attached drawings: 1. Lithium battery body; 2. Handle; 3. Control switch; 4. Outer shell; 5. First connecting ring; 6. Second connecting ring; 7. Connecting block; 8. First connecting rod; 9. First servo motor; 10. Worm gear; 11. Worm wheel; 12. Guide rail; 13. Protrusion; 14. Limiting rod; 15. Slider; 16. Second servo motor; 17. Rotating shaft; 18. Second connecting rod. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0028] This application discloses a lithium-ion battery torque wrench, including a lithium-ion battery body 1. A handle 2 is fixed to the top of the lithium-ion battery body 1, and a housing 4 is fixed to the top of the handle 2. A second servo motor 16 is fixed to one side of the inner wall of the housing 4. A rotating shaft 17 is fixed to the power output end of the second servo motor 16. A second connecting rod 18 is fixed to one end of the rotating shaft 17. A second connecting ring 6 is fixed to one side of the second connecting rod 18. A connecting block 7 is fixed to the outer wall of the second connecting ring 6. A first connecting ring 5 is fixed to one end of the top of the connecting block 7. The first connecting ring 5 and the second connecting ring 6 are connected by the connecting block 7, so that a worm gear 11 can protrude outside the first connecting ring 5 and the second connecting ring 6. The worm gear 11 can... When the worm gear 10 is touched, the second connecting ring 6 and the middle of the first connecting ring 5 are rotatably connected to the worm wheel 11. The worm wheel 11 is fixed to the side of the first connecting ring 5 with the guide rail 12. The connecting block 7 is fixed to the side of the first connecting rod 8. The first servo motor 9 is fixed to one end of the first connecting rod 8. The worm gear 10 is fixed to the power output end of the first servo motor 9. The top of the first connecting ring 5 is slidably connected to the limit rod 14. The bottom of the limit rod 14 is fixed to the slider 15. The slider 15 is slidably connected to the guide rail 12. The top of the first connecting ring 5 is located outside one end of the outer shell 4. The worm wheel 11 drives the guide rail 12 to rotate. The slider 15 moves relative to the guide rail 12 inside the guide rail 12, so that the slider 15 moves laterally.

[0029] Reference Appendix Figure 2 and 4 The worm 10 and worm wheel 11 are located on the same horizontal plane and mesh with each other. The connecting block 7 is U-shaped and connects the first connecting ring 5 and the second connecting ring 6, so that the worm wheel 11 can protrude outside the first connecting ring 5 and the second connecting ring 6. The worm wheel 11 can touch the worm 10. The first servo motor 9 drives the worm 10 to rotate, which in turn drives the worm wheel 11 and the guide rail 12 to rotate.

[0030] Reference Appendix Figure 2 and 4 The guide rail 12 is arranged in a horizontal spiral shape, and there are three limiting rods 14. The distance between the opposite ends of the three limiting rods 14 and the center point of the first connecting ring 5 is the same. The guide rail 12 drives the slider 15 to move, so that the three limiting rods 14 can move at the same speed and can simultaneously fit with the outside of the nut or bolt to be rotated.

[0031] Reference Appendix Figure 3Multiple second connecting rods 18 are provided, and each of the multiple second connecting rods 18 is fixed to one side of the second connecting ring 6. The central axis of the rotating shaft 17 is collinear with the central axis of the second connecting ring 6. The rotating shaft 17 and the second connecting ring 6 are connected by multiple second connecting rods 18, which increases the stability of the connection between the rotating shaft 17 and the second connecting ring 6 and prevents the rotating shaft 17 from separating from the second connecting ring 6 when rotating nuts and bolts that are difficult to rotate.

[0032] Reference Appendix Figure 2 and 4 A protrusion 13 is fixed in the middle of the worm gear 11. The thickness of the protrusion 13 is greater than the thickness of the guide rail 12. The protrusion 13 is used to protect the internal guide rail 12 and slider 15, so as to prevent the bolt from directly touching the guide rail 12 and causing damage to the device when the bolt is put into the first connecting ring 5.

[0033] Reference Appendix Figure 1 The handle 2 has a control switch 3 fixed on one side. There are two control switches 3, which control the first servo motor 9 and the second servo motor 16 respectively. By pressing the two control switches 3, the first servo motor 9 and the second servo motor 16 can be controlled. The control switches 3 can be controlled bidirectionally, controlling the forward and reverse rotation of the first servo motor 9 and the second servo motor 16 respectively.

[0034] Reference Appendix Figure 1 The first servo motor 9, the second servo motor 16, and the two control switches 3 are all electrically connected to the lithium battery body 1 through wires inside the handle 2. The first servo motor 9 and the second servo motor 16 are powered by the lithium battery body 1. When the position of the limit rod 14 needs to be controlled, press the upper control switch 3. When the rotation of the first connecting ring 5 needs to be controlled, press the lower control switch 3.

[0035] The implementation principle of the lithium-ion torque wrench in this embodiment is as follows: First, the first connecting ring 5 is placed on the outside of the nut or bolt to be disassembled or assembled. Then, by pressing the control switch 3 above, the first servo motor 9 is controlled to rotate. The first servo motor 9 drives the worm gear 10 to rotate, which in turn drives the worm wheel 11 and the guide rail 12 to rotate. The first connecting ring 5 and the second connecting ring 6 are connected by the connecting block 7, so that the worm wheel 11 can protrude outside the first connecting ring 5 and the second connecting ring 6, and the worm wheel 11 can touch the worm gear 10. The guide rail 12 drives the slider 15 to move, so that the three The three limit rods 14 can move simultaneously at the same speed. They can simultaneously engage with the outside of the nut or bolt to be rotated. When the worm gear 10 is difficult to rotate, stop pressing the upper control switch 3 and then press the lower control switch 3 to control the second servo motor 16 to rotate. The rotating shaft 17 is connected to the second connecting ring 6 through multiple second connecting rods 18, which increases the stability of the connection between the rotating shaft 17 and the second connecting ring 6. The rotating shaft 17 drives the second connecting ring 6, the first connecting ring 5 and the limit rods 14 to rotate outside the nut or bolt, allowing for the assembly and disassembly of the nut or bolt.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lithium-ion torque wrench, comprising a lithium-ion battery body (1), a handle (2) fixed to the top of the lithium-ion battery body (1), a housing (4) fixed to the top of the handle (2), and a second servo motor (16) fixed to one side of the inner wall of the housing (4), characterized in that: The power output end of the second servo motor (16) is fixed with a rotating shaft (17). One end of the rotating shaft (17) is fixed with a second connecting rod (18). A second connecting ring (6) is fixed on one side of the second connecting rod (18). A connecting block (7) is fixed on the outer wall of the second connecting ring (6). A first connecting ring (5) is fixed at one end of the top of the connecting block (7). A worm gear (11) is rotatably connected between the second connecting ring (6) and the first connecting ring (5). The worm gear (11) is close to the first connecting ring (5). A guide rail (12) is fixed on one side of the connecting block (7), a first connecting rod (8) is fixed on one side of the connecting block (7), a first servo motor (9) is fixed at one end of the first connecting rod (8), a worm gear (10) is fixed at the power output end of the first servo motor (9), a limit rod (14) is slidably connected to the top of the first connecting ring (5), a slider (15) is fixed at the bottom of the limit rod (14), the slider (15) is slidably connected to the guide rail (12), and the top of the first connecting ring (5) is located outside one end of the outer shell (4).

2. The lithium-ion torque wrench according to claim 1, characterized in that: The worm (10) and worm wheel (11) are located on the same horizontal plane, the worm (10) and worm wheel (11) mesh with each other, and the connecting block (7) is arranged in a U-shape.

3. The lithium-ion torque wrench according to claim 1, characterized in that: The guide rail (12) is arranged in a horizontal spiral shape, and there are three limiting rods (14). The distance between the opposite ends of the three limiting rods (14) and the center point of the first connecting ring (5) is the same.

4. The lithium-ion torque wrench according to claim 1, characterized in that: Multiple second connecting rods (18) are provided, and each of the multiple second connecting rods (18) is fixed to one side of the second connecting ring (6), and the central axis of the rotating shaft (17) is collinear with the central axis of the second connecting ring (6).

5. The lithium-ion torque wrench according to claim 1, characterized in that: A protrusion (13) is fixed in the middle of the worm gear (11), and the thickness of the protrusion (13) is greater than the thickness of the guide rail (12).

6. The lithium-ion torque wrench according to claim 1, characterized in that: A control switch (3) is fixed on one side of the grip (2). There are two control switches (3), which respectively control the first servo motor (9) and the second servo motor (16).

7. The lithium-ion torque wrench according to claim 6, characterized in that: The first servo motor (9), the second servo motor (16), and the two control switches (3) are all electrically connected to the lithium battery body (1) through wires inside the grip (2).

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